diff options
| author | Alex Zolotarev <deathbaba@gmail.com> | 2011-07-02 19:27:59 +0400 |
|---|---|---|
| committer | Alex Zolotarev <alex@maps.me> | 2015-09-23 01:20:20 +0300 |
| commit | f2f968c546009462418c2e87e3c1c93c3d92e350 (patch) | |
| tree | 575bef1cbb04e3a89333e64497098e9a1f086b99 /3party/zlib | |
| parent | 2cbd88b88265f9efc2763b695aba4de860f9a0e3 (diff) | |
[3party] Added all zlib files and zip support compilation
Diffstat (limited to '3party/zlib')
167 files changed, 44002 insertions, 1 deletions
diff --git a/3party/zlib/CMakeLists.txt b/3party/zlib/CMakeLists.txt new file mode 100644 index 0000000000..a64fe0b2ca --- /dev/null +++ b/3party/zlib/CMakeLists.txt @@ -0,0 +1,190 @@ +cmake_minimum_required(VERSION 2.4.4) +set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON) + +project(zlib C) + +if(NOT DEFINED BUILD_SHARED_LIBS) + option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON) +endif() + +include(CheckTypeSize) +include(CheckFunctionExists) +include(CheckIncludeFile) +include(CheckCSourceCompiles) +enable_testing() + +check_include_file(sys/types.h HAVE_SYS_TYPES_H) +check_include_file(stdint.h HAVE_STDINT_H) +check_include_file(stddef.h HAVE_STDDEF_H) + +# +# Check to see if we have large file support +# +set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1) +# We add these other definitions here because CheckTypeSize.cmake +# in CMake 2.4.x does not automatically do so and we want +# compatibility with CMake 2.4.x. +if(HAVE_SYS_TYPES_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H) +endif() +if(HAVE_STDINT_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H) +endif() +if(HAVE_STDDEF_H) + list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H) +endif() +check_type_size(off64_t OFF64_T) +if(HAVE_OFF64_T) + add_definitions(-D_LARGEFILE64_SOURCE=1) +endif() +set(CMAKE_REQUIRED_DEFINITIONS) # clear variable + +# +# Check for fseeko +# +check_function_exists(fseeko HAVE_FSEEKO) +if(NOT HAVE_FSEEKO) + add_definitions(-DNO_FSEEKO) +endif() + +# +# Check for unistd.h +# +check_include_file(unistd.h Z_HAVE_UNISTD_H) + +if(MSVC) + set(CMAKE_DEBUG_POSTFIX "d") + add_definitions(-D_CRT_SECURE_NO_DEPRECATE) + add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) +endif() + +if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR) + # If we're doing an out of source build and the user has a zconf.h + # in their source tree... + if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h) + message(FATAL_ERROR + "You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h " + "from the source tree. This file is included with zlib " + "but CMake generates this file for you automatically " + "in the build directory.") + endif() +endif() + +configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein + ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY) +include_directories(${CMAKE_CURRENT_BINARY_DIR}) + + +#============================================================================ +# zlib +#============================================================================ + +set(ZLIB_PUBLIC_HDRS + ${CMAKE_CURRENT_BINARY_DIR}/zconf.h + zlib.h +) +set(ZLIB_PRIVATE_HDRS + crc32.h + deflate.h + gzguts.h + inffast.h + inffixed.h + inflate.h + inftrees.h + trees.h + zutil.h +) +set(ZLIB_SRCS + adler32.c + compress.c + crc32.c + deflate.c + gzclose.c + gzlib.c + gzread.c + gzwrite.c + inflate.c + infback.c + inftrees.c + inffast.c + trees.c + uncompr.c + zutil.c + win32/zlib1.rc +) + +# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION +file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents) +string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*" + "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents}) + +if(MINGW) + # This gets us DLL resource information when compiling on MinGW. + add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj + COMMAND windres.exe + -D GCC_WINDRES + -I ${CMAKE_CURRENT_SOURCE_DIR} + -I ${CMAKE_CURRENT_BINARY_DIR} + -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj + -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc) + set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj) +endif(MINGW) + +add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS}) +set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL) + +set_target_properties(zlib PROPERTIES SOVERSION 1) + +if(NOT CYGWIN) + # This property causes shared libraries on Linux to have the full version + # encoded into their final filename. We disable this on Cygwin because + # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll + # seems to be the default. + # + # This has no effect with MSVC, on that platform the version info for + # the DLL comes from the resource file win32/zlib1.rc + set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION}) +endif() + +if(UNIX) + # On unix-like platforms the library is almost always called libz + set_target_properties(zlib PROPERTIES OUTPUT_NAME z) +elseif(BUILD_SHARED_LIBS AND WIN32) + # Creates zlib1.dll when building shared library version + set_target_properties(zlib PROPERTIES SUFFIX "1.dll") +endif() + +if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) + install(TARGETS zlib + RUNTIME DESTINATION bin + ARCHIVE DESTINATION lib + LIBRARY DESTINATION lib ) +endif() +if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) + install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include) +endif() +if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) + install(FILES zlib.3 DESTINATION share/man/man3) +endif() + +#============================================================================ +# Example binaries +#============================================================================ + +add_executable(example example.c) +target_link_libraries(example zlib) +add_test(example example) + +add_executable(minigzip minigzip.c) +target_link_libraries(minigzip zlib) + +if(HAVE_OFF64_T) + add_executable(example64 example.c) + target_link_libraries(example64 zlib) + set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") + add_test(example64 example64) + + add_executable(minigzip64 minigzip.c) + target_link_libraries(minigzip64 zlib) + set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") +endif() diff --git a/3party/zlib/ChangeLog b/3party/zlib/ChangeLog new file mode 100644 index 0000000000..f310bb0fcd --- /dev/null +++ b/3party/zlib/ChangeLog @@ -0,0 +1,1208 @@ + + ChangeLog file for zlib + +Changes in 1.2.5 (19 Apr 2010) +- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev] +- Default to libdir as sharedlibdir in configure [Nieder] +- Update copyright dates on modified source files +- Update trees.c to be able to generate modified trees.h +- Exit configure for MinGW, suggesting win32/Makefile.gcc + +Changes in 1.2.4.5 (18 Apr 2010) +- Set sharedlibdir in configure [Torok] +- Set LDFLAGS in Makefile.in [Bar-Lev] +- Avoid mkdir objs race condition in Makefile.in [Bowler] +- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays +- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C +- Don't use hidden attribute when it is a warning generator (e.g. Solaris) + +Changes in 1.2.4.4 (18 Apr 2010) +- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok] +- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty +- Try to use bash or ksh regardless of functionality of /bin/sh +- Fix configure incompatibility with NetBSD sh +- Remove attempt to run under bash or ksh since have better NetBSD fix +- Fix win32/Makefile.gcc for MinGW [Bar-Lev] +- Add diagnostic messages when using CROSS_PREFIX in configure +- Added --sharedlibdir option to configure [Weigelt] +- Use hidden visibility attribute when available [Frysinger] + +Changes in 1.2.4.3 (10 Apr 2010) +- Only use CROSS_PREFIX in configure for ar and ranlib if they exist +- Use CROSS_PREFIX for nm [Bar-Lev] +- Assume _LARGEFILE64_SOURCE defined is equivalent to true +- Avoid use of undefined symbols in #if with && and || +- Make *64 prototypes in gzguts.h consistent with functions +- Add -shared load option for MinGW in configure [Bowler] +- Move z_off64_t to public interface, use instead of off64_t +- Remove ! from shell test in configure (not portable to Solaris) +- Change +0 macro tests to -0 for possibly increased portability + +Changes in 1.2.4.2 (9 Apr 2010) +- Add consistent carriage returns to readme.txt's in masmx86 and masmx64 +- Really provide prototypes for *64 functions when building without LFS +- Only define unlink() in minigzip.c if unistd.h not included +- Update README to point to contrib/vstudio project files +- Move projects/vc6 to old/ and remove projects/ +- Include stdlib.h in minigzip.c for setmode() definition under WinCE +- Clean up assembler builds in win32/Makefile.msc [Rowe] +- Include sys/types.h for Microsoft for off_t definition +- Fix memory leak on error in gz_open() +- Symbolize nm as $NM in configure [Weigelt] +- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt] +- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined +- Fix bug in gzeof() to take into account unused input data +- Avoid initialization of structures with variables in puff.c +- Updated win32/README-WIN32.txt [Rowe] + +Changes in 1.2.4.1 (28 Mar 2010) +- Remove the use of [a-z] constructs for sed in configure [gentoo 310225] +- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech] +- Restore "for debugging" comment on sprintf() in gzlib.c +- Remove fdopen for MVS from gzguts.h +- Put new README-WIN32.txt in win32 [Rowe] +- Add check for shell to configure and invoke another shell if needed +- Fix big fat stinking bug in gzseek() on uncompressed files +- Remove vestigial F_OPEN64 define in zutil.h +- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE +- Avoid errors on non-LFS systems when applications define LFS macros +- Set EXE to ".exe" in configure for MINGW [Kahle] +- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill] +- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev] +- Add DLL install in win32/makefile.gcc [Bar-Lev] +- Allow Linux* or linux* from uname in configure [Bar-Lev] +- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev] +- Add cross-compilation prefixes to configure [Bar-Lev] +- Match type exactly in gz_load() invocation in gzread.c +- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func +- Provide prototypes for *64 functions when building zlib without LFS +- Don't use -lc when linking shared library on MinGW +- Remove errno.h check in configure and vestigial errno code in zutil.h + +Changes in 1.2.4 (14 Mar 2010) +- Fix VER3 extraction in configure for no fourth subversion +- Update zlib.3, add docs to Makefile.in to make .pdf out of it +- Add zlib.3.pdf to distribution +- Don't set error code in gzerror() if passed pointer is NULL +- Apply destination directory fixes to CMakeLists.txt [Lowman] +- Move #cmakedefine's to a new zconf.in.cmakein +- Restore zconf.h for builds that don't use configure or cmake +- Add distclean to dummy Makefile for convenience +- Update and improve INDEX, README, and FAQ +- Update CMakeLists.txt for the return of zconf.h [Lowman] +- Update contrib/vstudio/vc9 and vc10 [Vollant] +- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc +- Apply license and readme changes to contrib/asm686 [Raiter] +- Check file name lengths and add -c option in minigzip.c [Li] +- Update contrib/amd64 and contrib/masmx86/ [Vollant] +- Avoid use of "eof" parameter in trees.c to not shadow library variable +- Update make_vms.com for removal of zlibdefs.h [Zinser] +- Update assembler code and vstudio projects in contrib [Vollant] +- Remove outdated assembler code contrib/masm686 and contrib/asm586 +- Remove old vc7 and vc8 from contrib/vstudio +- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] +- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() +- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] +- Remove *64 functions from win32/zlib.def (they're not 64-bit yet) +- Fix bug in void-returning vsprintf() case in gzwrite.c +- Fix name change from inflate.h in contrib/inflate86/inffas86.c +- Check if temporary file exists before removing in make_vms.com [Zinser] +- Fix make install and uninstall for --static option +- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] +- Update readme.txt in contrib/masmx64 and masmx86 to assemble + +Changes in 1.2.3.9 (21 Feb 2010) +- Expunge gzio.c +- Move as400 build information to old +- Fix updates in contrib/minizip and contrib/vstudio +- Add const to vsnprintf test in configure to avoid warnings [Weigelt] +- Delete zconf.h (made by configure) [Weigelt] +- Change zconf.in.h to zconf.h.in per convention [Weigelt] +- Check for NULL buf in gzgets() +- Return empty string for gzgets() with len == 1 (like fgets()) +- Fix description of gzgets() in zlib.h for end-of-file, NULL return +- Update minizip to 1.1 [Vollant] +- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c +- Note in zlib.h that gzerror() should be used to distinguish from EOF +- Remove use of snprintf() from gzlib.c +- Fix bug in gzseek() +- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] +- Fix zconf.h generation in CMakeLists.txt [Lowman] +- Improve comments in zconf.h where modified by configure + +Changes in 1.2.3.8 (13 Feb 2010) +- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] +- Use z_off64_t in gz_zero() and gz_skip() to match state->skip +- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) +- Revert to Makefile.in from 1.2.3.6 (live with the clutter) +- Fix missing error return in gzflush(), add zlib.h note +- Add *64 functions to zlib.map [Levin] +- Fix signed/unsigned comparison in gz_comp() +- Use SFLAGS when testing shared linking in configure +- Add --64 option to ./configure to use -m64 with gcc +- Fix ./configure --help to correctly name options +- Have make fail if a test fails [Levin] +- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] +- Remove assembler object files from contrib + +Changes in 1.2.3.7 (24 Jan 2010) +- Always gzopen() with O_LARGEFILE if available +- Fix gzdirect() to work immediately after gzopen() or gzdopen() +- Make gzdirect() more precise when the state changes while reading +- Improve zlib.h documentation in many places +- Catch memory allocation failure in gz_open() +- Complete close operation if seek forward in gzclose_w() fails +- Return Z_ERRNO from gzclose_r() if close() fails +- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL +- Return zero for gzwrite() errors to match zlib.h description +- Return -1 on gzputs() error to match zlib.h description +- Add zconf.in.h to allow recovery from configure modification [Weigelt] +- Fix static library permissions in Makefile.in [Weigelt] +- Avoid warnings in configure tests that hide functionality [Weigelt] +- Add *BSD and DragonFly to Linux case in configure [gentoo 123571] +- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] +- Avoid access of uninitialized data for first inflateReset2 call [Gomes] +- Keep object files in subdirectories to reduce the clutter somewhat +- Remove default Makefile and zlibdefs.h, add dummy Makefile +- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ +- Remove zlibdefs.h completely -- modify zconf.h instead + +Changes in 1.2.3.6 (17 Jan 2010) +- Avoid void * arithmetic in gzread.c and gzwrite.c +- Make compilers happier with const char * for gz_error message +- Avoid unused parameter warning in inflate.c +- Avoid signed-unsigned comparison warning in inflate.c +- Indent #pragma's for traditional C +- Fix usage of strwinerror() in glib.c, change to gz_strwinerror() +- Correct email address in configure for system options +- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] +- Update zlib.map [Brown] +- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok] +- Apply various fixes to CMakeLists.txt [Lowman] +- Add checks on len in gzread() and gzwrite() +- Add error message for no more room for gzungetc() +- Remove zlib version check in gzwrite() +- Defer compression of gzprintf() result until need to +- Use snprintf() in gzdopen() if available +- Remove USE_MMAP configuration determination (only used by minigzip) +- Remove examples/pigz.c (available separately) +- Update examples/gun.c to 1.6 + +Changes in 1.2.3.5 (8 Jan 2010) +- Add space after #if in zutil.h for some compilers +- Fix relatively harmless bug in deflate_fast() [Exarevsky] +- Fix same problem in deflate_slow() +- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] +- Add deflate_rle() for faster Z_RLE strategy run-length encoding +- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding +- Change name of "write" variable in inffast.c to avoid library collisions +- Fix premature EOF from gzread() in gzio.c [Brown] +- Use zlib header window size if windowBits is 0 in inflateInit2() +- Remove compressBound() call in deflate.c to avoid linking compress.o +- Replace use of errno in gz* with functions, support WinCE [Alves] +- Provide alternative to perror() in minigzip.c for WinCE [Alves] +- Don't use _vsnprintf on later versions of MSVC [Lowman] +- Add CMake build script and input file [Lowman] +- Update contrib/minizip to 1.1 [Svensson, Vollant] +- Moved nintendods directory from contrib to . +- Replace gzio.c with a new set of routines with the same functionality +- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above +- Update contrib/minizip to 1.1b +- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h + +Changes in 1.2.3.4 (21 Dec 2009) +- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility +- Update comments in configure and Makefile.in for default --shared +- Fix test -z's in configure [Marquess] +- Build examplesh and minigzipsh when not testing +- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h +- Import LDFLAGS from the environment in configure +- Fix configure to populate SFLAGS with discovered CFLAGS options +- Adapt make_vms.com to the new Makefile.in [Zinser] +- Add zlib2ansi script for C++ compilation [Marquess] +- Add _FILE_OFFSET_BITS=64 test to make test (when applicable) +- Add AMD64 assembler code for longest match to contrib [Teterin] +- Include options from $SFLAGS when doing $LDSHARED +- Simplify 64-bit file support by introducing z_off64_t type +- Make shared object files in objs directory to work around old Sun cc +- Use only three-part version number for Darwin shared compiles +- Add rc option to ar in Makefile.in for when ./configure not run +- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* +- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile +- Protect against _FILE_OFFSET_BITS being defined when compiling zlib +- Rename Makefile.in targets allstatic to static and allshared to shared +- Fix static and shared Makefile.in targets to be independent +- Correct error return bug in gz_open() by setting state [Brown] +- Put spaces before ;;'s in configure for better sh compatibility +- Add pigz.c (parallel implementation of gzip) to examples/ +- Correct constant in crc32.c to UL [Leventhal] +- Reject negative lengths in crc32_combine() +- Add inflateReset2() function to work like inflateEnd()/inflateInit2() +- Include sys/types.h for _LARGEFILE64_SOURCE [Brown] +- Correct typo in doc/algorithm.txt [Janik] +- Fix bug in adler32_combine() [Zhu] +- Catch missing-end-of-block-code error in all inflates and in puff + Assures that random input to inflate eventually results in an error +- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ +- Update ENOUGH and its usage to reflect discovered bounds +- Fix gzerror() error report on empty input file [Brown] +- Add ush casts in trees.c to avoid pedantic runtime errors +- Fix typo in zlib.h uncompress() description [Reiss] +- Correct inflate() comments with regard to automatic header detection +- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) +- Put new version of gzlog (2.0) in examples with interruption recovery +- Add puff compile option to permit invalid distance-too-far streams +- Add puff TEST command options, ability to read piped input +- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but + _LARGEFILE64_SOURCE not defined +- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart +- Fix deflateSetDictionary() to use all 32K for output consistency +- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) +- Clear bytes after deflate lookahead to avoid use of uninitialized data +- Change a limit in inftrees.c to be more transparent to Coverity Prevent +- Update win32/zlib.def with exported symbols from zlib.h +- Correct spelling error in zlib.h [Willem] +- Allow Z_BLOCK for deflate() to force a new block +- Allow negative bits in inflatePrime() to delete existing bit buffer +- Add Z_TREES flush option to inflate() to return at end of trees +- Add inflateMark() to return current state information for random access +- Add Makefile for NintendoDS to contrib [Costa] +- Add -w in configure compile tests to avoid spurious warnings [Beucler] +- Fix typos in zlib.h comments for deflateSetDictionary() +- Fix EOF detection in transparent gzread() [Maier] + +Changes in 1.2.3.3 (2 October 2006) +- Make --shared the default for configure, add a --static option +- Add compile option to permit invalid distance-too-far streams +- Add inflateUndermine() function which is required to enable above +- Remove use of "this" variable name for C++ compatibility [Marquess] +- Add testing of shared library in make test, if shared library built +- Use ftello() and fseeko() if available instead of ftell() and fseek() +- Provide two versions of all functions that use the z_off_t type for + binary compatibility -- a normal version and a 64-bit offset version, + per the Large File Support Extension when _LARGEFILE64_SOURCE is + defined; use the 64-bit versions by default when _FILE_OFFSET_BITS + is defined to be 64 +- Add a --uname= option to configure to perhaps help with cross-compiling + +Changes in 1.2.3.2 (3 September 2006) +- Turn off silly Borland warnings [Hay] +- Use off64_t and define _LARGEFILE64_SOURCE when present +- Fix missing dependency on inffixed.h in Makefile.in +- Rig configure --shared to build both shared and static [Teredesai, Truta] +- Remove zconf.in.h and instead create a new zlibdefs.h file +- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] +- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] + +Changes in 1.2.3.1 (16 August 2006) +- Add watcom directory with OpenWatcom make files [Daniel] +- Remove #undef of FAR in zconf.in.h for MVS [Fedtke] +- Update make_vms.com [Zinser] +- Use -fPIC for shared build in configure [Teredesai, Nicholson] +- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] +- Use fdopen() (not _fdopen()) for Interix in zutil.h [BŠck] +- Add some FAQ entries about the contrib directory +- Update the MVS question in the FAQ +- Avoid extraneous reads after EOF in gzio.c [Brown] +- Correct spelling of "successfully" in gzio.c [Randers-Pehrson] +- Add comments to zlib.h about gzerror() usage [Brown] +- Set extra flags in gzip header in gzopen() like deflate() does +- Make configure options more compatible with double-dash conventions + [Weigelt] +- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] +- Fix uninstall target in Makefile.in [Truta] +- Add pkgconfig support [Weigelt] +- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] +- Replace set_data_type() with a more accurate detect_data_type() in + trees.c, according to the txtvsbin.txt document [Truta] +- Swap the order of #include <stdio.h> and #include "zlib.h" in + gzio.c, example.c and minigzip.c [Truta] +- Shut up annoying VS2005 warnings about standard C deprecation [Rowe, + Truta] (where?) +- Fix target "clean" from win32/Makefile.bor [Truta] +- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] +- Update zlib www home address in win32/DLL_FAQ.txt [Truta] +- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] +- Enable browse info in the "Debug" and "ASM Debug" configurations in + the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] +- Add pkgconfig support [Weigelt] +- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, + for use in win32/zlib1.rc [Polushin, Rowe, Truta] +- Add a document that explains the new text detection scheme to + doc/txtvsbin.txt [Truta] +- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] +- Move algorithm.txt into doc/ [Truta] +- Synchronize FAQ with website +- Fix compressBound(), was low for some pathological cases [Fearnley] +- Take into account wrapper variations in deflateBound() +- Set examples/zpipe.c input and output to binary mode for Windows +- Update examples/zlib_how.html with new zpipe.c (also web site) +- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems + that gcc became pickier in 4.0) +- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain + un-versioned, the patch adds versioning only for symbols introduced in + zlib-1.2.0 or later. It also declares as local those symbols which are + not designed to be exported." [Levin] +- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure +- Do not initialize global static by default in trees.c, add a response + NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] +- Don't use strerror() in gzio.c under WinCE [Yakimov] +- Don't use errno.h in zutil.h under WinCE [Yakimov] +- Move arguments for AR to its usage to allow replacing ar [Marot] +- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] +- Improve inflateInit() and inflateInit2() documentation +- Fix structure size comment in inflate.h +- Change configure help option from --h* to --help [Santos] + +Changes in 1.2.3 (18 July 2005) +- Apply security vulnerability fixes to contrib/infback9 as well +- Clean up some text files (carriage returns, trailing space) +- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] + +Changes in 1.2.2.4 (11 July 2005) +- Add inflatePrime() function for starting inflation at bit boundary +- Avoid some Visual C warnings in deflate.c +- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit + compile +- Fix some spelling errors in comments [Betts] +- Correct inflateInit2() error return documentation in zlib.h +- Add zran.c example of compressed data random access to examples + directory, shows use of inflatePrime() +- Fix cast for assignments to strm->state in inflate.c and infback.c +- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] +- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] +- Add cast in trees.c t avoid a warning [Oberhumer] +- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] +- Update make_vms.com [Zinser] +- Initialize state->write in inflateReset() since copied in inflate_fast() +- Be more strict on incomplete code sets in inflate_table() and increase + ENOUGH and MAXD -- this repairs a possible security vulnerability for + invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for + discovering the vulnerability and providing test cases. +- Add ia64 support to configure for HP-UX [Smith] +- Add error return to gzread() for format or i/o error [Levin] +- Use malloc.h for OS/2 [Necasek] + +Changes in 1.2.2.3 (27 May 2005) +- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile +- Typecast fread() return values in gzio.c [Vollant] +- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) +- Fix crc check bug in gzread() after gzungetc() [Heiner] +- Add the deflateTune() function to adjust internal compression parameters +- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) +- Remove an incorrect assertion in examples/zpipe.c +- Add C++ wrapper in infback9.h [Donais] +- Fix bug in inflateCopy() when decoding fixed codes +- Note in zlib.h how much deflateSetDictionary() actually uses +- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) +- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] +- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] +- Add gzdirect() function to indicate transparent reads +- Update contrib/minizip [Vollant] +- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] +- Add casts in crc32.c to avoid warnings [Oberhumer] +- Add contrib/masmx64 [Vollant] +- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] + +Changes in 1.2.2.2 (30 December 2004) +- Replace structure assignments in deflate.c and inflate.c with zmemcpy to + avoid implicit memcpy calls (portability for no-library compilation) +- Increase sprintf() buffer size in gzdopen() to allow for large numbers +- Add INFLATE_STRICT to check distances against zlib header +- Improve WinCE errno handling and comments [Chang] +- Remove comment about no gzip header processing in FAQ +- Add Z_FIXED strategy option to deflateInit2() to force fixed trees +- Add updated make_vms.com [Coghlan], update README +- Create a new "examples" directory, move gzappend.c there, add zpipe.c, + fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. +- Add FAQ entry and comments in deflate.c on uninitialized memory access +- Add Solaris 9 make options in configure [Gilbert] +- Allow strerror() usage in gzio.c for STDC +- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] +- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] +- Use z_off_t for adler32_combine() and crc32_combine() lengths +- Make adler32() much faster for small len +- Use OS_CODE in deflate() default gzip header + +Changes in 1.2.2.1 (31 October 2004) +- Allow inflateSetDictionary() call for raw inflate +- Fix inflate header crc check bug for file names and comments +- Add deflateSetHeader() and gz_header structure for custom gzip headers +- Add inflateGetheader() to retrieve gzip headers +- Add crc32_combine() and adler32_combine() functions +- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list +- Use zstreamp consistently in zlib.h (inflate_back functions) +- Remove GUNZIP condition from definition of inflate_mode in inflate.h + and in contrib/inflate86/inffast.S [Truta, Anderson] +- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] +- Update projects/README.projects and projects/visualc6 [Truta] +- Update win32/DLL_FAQ.txt [Truta] +- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] +- Deprecate Z_ASCII; use Z_TEXT instead [Truta] +- Use a new algorithm for setting strm->data_type in trees.c [Truta] +- Do not define an exit() prototype in zutil.c unless DEBUG defined +- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] +- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() +- Fix Darwin build version identification [Peterson] + +Changes in 1.2.2 (3 October 2004) +- Update zlib.h comments on gzip in-memory processing +- Set adler to 1 in inflateReset() to support Java test suite [Walles] +- Add contrib/dotzlib [Ravn] +- Update win32/DLL_FAQ.txt [Truta] +- Update contrib/minizip [Vollant] +- Move contrib/visual-basic.txt to old/ [Truta] +- Fix assembler builds in projects/visualc6/ [Truta] + +Changes in 1.2.1.2 (9 September 2004) +- Update INDEX file +- Fix trees.c to update strm->data_type (no one ever noticed!) +- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] +- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) +- Add limited multitasking protection to DYNAMIC_CRC_TABLE +- Add NO_vsnprintf for VMS in zutil.h [Mozilla] +- Don't declare strerror() under VMS [Mozilla] +- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize +- Update contrib/ada [Anisimkov] +- Update contrib/minizip [Vollant] +- Fix configure to not hardcode directories for Darwin [Peterson] +- Fix gzio.c to not return error on empty files [Brown] +- Fix indentation; update version in contrib/delphi/ZLib.pas and + contrib/pascal/zlibpas.pas [Truta] +- Update mkasm.bat in contrib/masmx86 [Truta] +- Update contrib/untgz [Truta] +- Add projects/README.projects [Truta] +- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] +- Update win32/DLL_FAQ.txt [Truta] +- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] +- Remove an unnecessary assignment to curr in inftrees.c [Truta] +- Add OS/2 to exe builds in configure [Poltorak] +- Remove err dummy parameter in zlib.h [Kientzle] + +Changes in 1.2.1.1 (9 January 2004) +- Update email address in README +- Several FAQ updates +- Fix a big fat bug in inftrees.c that prevented decoding valid + dynamic blocks with only literals and no distance codes -- + Thanks to "Hot Emu" for the bug report and sample file +- Add a note to puff.c on no distance codes case. + +Changes in 1.2.1 (17 November 2003) +- Remove a tab in contrib/gzappend/gzappend.c +- Update some interfaces in contrib for new zlib functions +- Update zlib version number in some contrib entries +- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] +- Support shared libraries on Hurd and KFreeBSD [Brown] +- Fix error in NO_DIVIDE option of adler32.c + +Changes in 1.2.0.8 (4 November 2003) +- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas +- Add experimental NO_DIVIDE #define in adler32.c + - Possibly faster on some processors (let me know if it is) +- Correct Z_BLOCK to not return on first inflate call if no wrap +- Fix strm->data_type on inflate() return to correctly indicate EOB +- Add deflatePrime() function for appending in the middle of a byte +- Add contrib/gzappend for an example of appending to a stream +- Update win32/DLL_FAQ.txt [Truta] +- Delete Turbo C comment in README [Truta] +- Improve some indentation in zconf.h [Truta] +- Fix infinite loop on bad input in configure script [Church] +- Fix gzeof() for concatenated gzip files [Johnson] +- Add example to contrib/visual-basic.txt [Michael B.] +- Add -p to mkdir's in Makefile.in [vda] +- Fix configure to properly detect presence or lack of printf functions +- Add AS400 support [Monnerat] +- Add a little Cygwin support [Wilson] + +Changes in 1.2.0.7 (21 September 2003) +- Correct some debug formats in contrib/infback9 +- Cast a type in a debug statement in trees.c +- Change search and replace delimiter in configure from % to # [Beebe] +- Update contrib/untgz to 0.2 with various fixes [Truta] +- Add build support for Amiga [Nikl] +- Remove some directories in old that have been updated to 1.2 +- Add dylib building for Mac OS X in configure and Makefile.in +- Remove old distribution stuff from Makefile +- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X +- Update links in README + +Changes in 1.2.0.6 (13 September 2003) +- Minor FAQ updates +- Update contrib/minizip to 1.00 [Vollant] +- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] +- Update POSTINC comment for 68060 [Nikl] +- Add contrib/infback9 with deflate64 decoding (unsupported) +- For MVS define NO_vsnprintf and undefine FAR [van Burik] +- Add pragma for fdopen on MVS [van Burik] + +Changes in 1.2.0.5 (8 September 2003) +- Add OF to inflateBackEnd() declaration in zlib.h +- Remember start when using gzdopen in the middle of a file +- Use internal off_t counters in gz* functions to properly handle seeks +- Perform more rigorous check for distance-too-far in inffast.c +- Add Z_BLOCK flush option to return from inflate at block boundary +- Set strm->data_type on return from inflate + - Indicate bits unused, if at block boundary, and if in last block +- Replace size_t with ptrdiff_t in crc32.c, and check for correct size +- Add condition so old NO_DEFLATE define still works for compatibility +- FAQ update regarding the Windows DLL [Truta] +- INDEX update: add qnx entry, remove aix entry [Truta] +- Install zlib.3 into mandir [Wilson] +- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] +- Adapt the zlib interface to the new DLL convention guidelines [Truta] +- Introduce ZLIB_WINAPI macro to allow the export of functions using + the WINAPI calling convention, for Visual Basic [Vollant, Truta] +- Update msdos and win32 scripts and makefiles [Truta] +- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] +- Add contrib/ada [Anisimkov] +- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] +- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] +- Add contrib/masm686 [Truta] +- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm + [Truta, Vollant] +- Update contrib/delphi; rename to contrib/pascal; add example [Truta] +- Remove contrib/delphi2; add a new contrib/delphi [Truta] +- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream, + and fix some method prototypes [Truta] +- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip + [Truta] +- Avoid the use of backslash (\) in contrib/minizip [Vollant] +- Fix file time handling in contrib/untgz; update makefiles [Truta] +- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines + [Vollant] +- Remove contrib/vstudio/vc15_16 [Vollant] +- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] +- Update README.contrib [Truta] +- Invert the assignment order of match_head and s->prev[...] in + INSERT_STRING [Truta] +- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings + [Truta] +- Compare function pointers with 0, not with NULL or Z_NULL [Truta] +- Fix prototype of syncsearch in inflate.c [Truta] +- Introduce ASMINF macro to be enabled when using an ASM implementation + of inflate_fast [Truta] +- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] +- Modify test_gzio in example.c to take a single file name as a + parameter [Truta] +- Exit the example.c program if gzopen fails [Truta] +- Add type casts around strlen in example.c [Truta] +- Remove casting to sizeof in minigzip.c; give a proper type + to the variable compared with SUFFIX_LEN [Truta] +- Update definitions of STDC and STDC99 in zconf.h [Truta] +- Synchronize zconf.h with the new Windows DLL interface [Truta] +- Use SYS16BIT instead of __32BIT__ to distinguish between + 16- and 32-bit platforms [Truta] +- Use far memory allocators in small 16-bit memory models for + Turbo C [Truta] +- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in + zlibCompileFlags [Truta] +- Cygwin has vsnprintf [Wilson] +- In Windows16, OS_CODE is 0, as in MSDOS [Truta] +- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] + +Changes in 1.2.0.4 (10 August 2003) +- Minor FAQ updates +- Be more strict when checking inflateInit2's windowBits parameter +- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well +- Add gzip wrapper option to deflateInit2 using windowBits +- Add updated QNX rule in configure and qnx directory [Bonnefoy] +- Make inflate distance-too-far checks more rigorous +- Clean up FAR usage in inflate +- Add casting to sizeof() in gzio.c and minigzip.c + +Changes in 1.2.0.3 (19 July 2003) +- Fix silly error in gzungetc() implementation [Vollant] +- Update contrib/minizip and contrib/vstudio [Vollant] +- Fix printf format in example.c +- Correct cdecl support in zconf.in.h [Anisimkov] +- Minor FAQ updates + +Changes in 1.2.0.2 (13 July 2003) +- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons +- Attempt to avoid warnings in crc32.c for pointer-int conversion +- Add AIX to configure, remove aix directory [Bakker] +- Add some casts to minigzip.c +- Improve checking after insecure sprintf() or vsprintf() calls +- Remove #elif's from crc32.c +- Change leave label to inf_leave in inflate.c and infback.c to avoid + library conflicts +- Remove inflate gzip decoding by default--only enable gzip decoding by + special request for stricter backward compatibility +- Add zlibCompileFlags() function to return compilation information +- More typecasting in deflate.c to avoid warnings +- Remove leading underscore from _Capital #defines [Truta] +- Fix configure to link shared library when testing +- Add some Windows CE target adjustments [Mai] +- Remove #define ZLIB_DLL in zconf.h [Vollant] +- Add zlib.3 [Rodgers] +- Update RFC URL in deflate.c and algorithm.txt [Mai] +- Add zlib_dll_FAQ.txt to contrib [Truta] +- Add UL to some constants [Truta] +- Update minizip and vstudio [Vollant] +- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h +- Expand use of NO_DUMMY_DECL to avoid all dummy structures +- Added iostream3 to contrib [Schwardt] +- Replace rewind() with fseek() for WinCE [Truta] +- Improve setting of zlib format compression level flags + - Report 0 for huffman and rle strategies and for level == 0 or 1 + - Report 2 only for level == 6 +- Only deal with 64K limit when necessary at compile time [Truta] +- Allow TOO_FAR check to be turned off at compile time [Truta] +- Add gzclearerr() function [Souza] +- Add gzungetc() function + +Changes in 1.2.0.1 (17 March 2003) +- Add Z_RLE strategy for run-length encoding [Truta] + - When Z_RLE requested, restrict matches to distance one + - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE +- Correct FASTEST compilation to allow level == 0 +- Clean up what gets compiled for FASTEST +- Incorporate changes to zconf.in.h [Vollant] + - Refine detection of Turbo C need for dummy returns + - Refine ZLIB_DLL compilation + - Include additional header file on VMS for off_t typedef +- Try to use _vsnprintf where it supplants vsprintf [Vollant] +- Add some casts in inffast.c +- Enchance comments in zlib.h on what happens if gzprintf() tries to + write more than 4095 bytes before compression +- Remove unused state from inflateBackEnd() +- Remove exit(0) from minigzip.c, example.c +- Get rid of all those darn tabs +- Add "check" target to Makefile.in that does the same thing as "test" +- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in +- Update contrib/inflate86 [Anderson] +- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] +- Add msdos and win32 directories with makefiles [Truta] +- More additions and improvements to the FAQ + +Changes in 1.2.0 (9 March 2003) +- New and improved inflate code + - About 20% faster + - Does not allocate 32K window unless and until needed + - Automatically detects and decompresses gzip streams + - Raw inflate no longer needs an extra dummy byte at end + - Added inflateBack functions using a callback interface--even faster + than inflate, useful for file utilities (gzip, zip) + - Added inflateCopy() function to record state for random access on + externally generated deflate streams (e.g. in gzip files) + - More readable code (I hope) +- New and improved crc32() + - About 50% faster, thanks to suggestions from Rodney Brown +- Add deflateBound() and compressBound() functions +- Fix memory leak in deflateInit2() +- Permit setting dictionary for raw deflate (for parallel deflate) +- Fix const declaration for gzwrite() +- Check for some malloc() failures in gzio.c +- Fix bug in gzopen() on single-byte file 0x1f +- Fix bug in gzread() on concatenated file with 0x1f at end of buffer + and next buffer doesn't start with 0x8b +- Fix uncompress() to return Z_DATA_ERROR on truncated input +- Free memory at end of example.c +- Remove MAX #define in trees.c (conflicted with some libraries) +- Fix static const's in deflate.c, gzio.c, and zutil.[ch] +- Declare malloc() and free() in gzio.c if STDC not defined +- Use malloc() instead of calloc() in zutil.c if int big enough +- Define STDC for AIX +- Add aix/ with approach for compiling shared library on AIX +- Add HP-UX support for shared libraries in configure +- Add OpenUNIX support for shared libraries in configure +- Use $cc instead of gcc to build shared library +- Make prefix directory if needed when installing +- Correct Macintosh avoidance of typedef Byte in zconf.h +- Correct Turbo C memory allocation when under Linux +- Use libz.a instead of -lz in Makefile (assure use of compiled library) +- Update configure to check for snprintf or vsnprintf functions and their + return value, warn during make if using an insecure function +- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that + is lost when library is used--resolution is to build new zconf.h +- Documentation improvements (in zlib.h): + - Document raw deflate and inflate + - Update RFCs URL + - Point out that zlib and gzip formats are different + - Note that Z_BUF_ERROR is not fatal + - Document string limit for gzprintf() and possible buffer overflow + - Note requirement on avail_out when flushing + - Note permitted values of flush parameter of inflate() +- Add some FAQs (and even answers) to the FAQ +- Add contrib/inflate86/ for x86 faster inflate +- Add contrib/blast/ for PKWare Data Compression Library decompression +- Add contrib/puff/ simple inflate for deflate format description + +Changes in 1.1.4 (11 March 2002) +- ZFREE was repeated on same allocation on some error conditions. + This creates a security problem described in + http://www.zlib.org/advisory-2002-03-11.txt +- Returned incorrect error (Z_MEM_ERROR) on some invalid data +- Avoid accesses before window for invalid distances with inflate window + less than 32K. +- force windowBits > 8 to avoid a bug in the encoder for a window size + of 256 bytes. (A complete fix will be available in 1.1.5). + +Changes in 1.1.3 (9 July 1998) +- fix "an inflate input buffer bug that shows up on rare but persistent + occasions" (Mark) +- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) +- fix gzseek(..., SEEK_SET) in write mode +- fix crc check after a gzeek (Frank Faubert) +- fix miniunzip when the last entry in a zip file is itself a zip file + (J Lillge) +- add contrib/asm586 and contrib/asm686 (Brian Raiter) + See http://www.muppetlabs.com/~breadbox/software/assembly.html +- add support for Delphi 3 in contrib/delphi (Bob Dellaca) +- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) +- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) +- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) +- added a FAQ file + +- Support gzdopen on Mac with Metrowerks (Jason Linhart) +- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) +- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) +- avoid some warnings with Borland C (Tom Tanner) +- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) +- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) +- allow several arguments to configure (Tim Mooney, Frodo Looijaard) +- use libdir and includedir in Makefile.in (Tim Mooney) +- support shared libraries on OSF1 V4 (Tim Mooney) +- remove so_locations in "make clean" (Tim Mooney) +- fix maketree.c compilation error (Glenn, Mark) +- Python interface to zlib now in Python 1.5 (Jeremy Hylton) +- new Makefile.riscos (Rich Walker) +- initialize static descriptors in trees.c for embedded targets (Nick Smith) +- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) +- add the OS/2 files in Makefile.in too (Andrew Zabolotny) +- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) +- fix maketree.c to allow clean compilation of inffixed.h (Mark) +- fix parameter check in deflateCopy (Gunther Nikl) +- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) +- Many portability patches by Christian Spieler: + . zutil.c, zutil.h: added "const" for zmem* + . Make_vms.com: fixed some typos + . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists + . msdos/Makefile.msc: remove "default rtl link library" info from obj files + . msdos/Makefile.*: use model-dependent name for the built zlib library + . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: + new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) +- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) +- replace __far with _far for better portability (Christian Spieler, Tom Lane) +- fix test for errno.h in configure (Tim Newsham) + +Changes in 1.1.2 (19 March 98) +- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) + See http://www.winimage.com/zLibDll/unzip.html +- preinitialize the inflate tables for fixed codes, to make the code + completely thread safe (Mark) +- some simplifications and slight speed-up to the inflate code (Mark) +- fix gzeof on non-compressed files (Allan Schrum) +- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) +- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) +- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) +- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) +- do not wrap extern "C" around system includes (Tom Lane) +- mention zlib binding for TCL in README (Andreas Kupries) +- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) +- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) +- allow "configure --prefix $HOME" (Tim Mooney) +- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) +- move Makefile.sas to amiga/Makefile.sas + +Changes in 1.1.1 (27 Feb 98) +- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) +- remove block truncation heuristic which had very marginal effect for zlib + (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the + compression ratio on some files. This also allows inlining _tr_tally for + matches in deflate_slow. +- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) + +Changes in 1.1.0 (24 Feb 98) +- do not return STREAM_END prematurely in inflate (John Bowler) +- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) +- compile with -DFASTEST to get compression code optimized for speed only +- in minigzip, try mmap'ing the input file first (Miguel Albrecht) +- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain + on Sun but significant on HP) + +- add a pointer to experimental unzip library in README (Gilles Vollant) +- initialize variable gcc in configure (Chris Herborth) + +Changes in 1.0.9 (17 Feb 1998) +- added gzputs and gzgets functions +- do not clear eof flag in gzseek (Mark Diekhans) +- fix gzseek for files in transparent mode (Mark Diekhans) +- do not assume that vsprintf returns the number of bytes written (Jens Krinke) +- replace EXPORT with ZEXPORT to avoid conflict with other programs +- added compress2 in zconf.h, zlib.def, zlib.dnt +- new asm code from Gilles Vollant in contrib/asm386 +- simplify the inflate code (Mark): + . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() + . ZALLOC the length list in inflate_trees_fixed() instead of using stack + . ZALLOC the value area for huft_build() instead of using stack + . Simplify Z_FINISH check in inflate() + +- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 +- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) +- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with + the declaration of FAR (Gilles VOllant) +- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) +- read_buf buf parameter of type Bytef* instead of charf* +- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) +- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) +- fix check for presence of directories in "make install" (Ian Willis) + +Changes in 1.0.8 (27 Jan 1998) +- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) +- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) +- added compress2() to allow setting the compression level +- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) +- use constant arrays for the static trees in trees.c instead of computing + them at run time (thanks to Ken Raeburn for this suggestion). To create + trees.h, compile with GEN_TREES_H and run "make test". +- check return code of example in "make test" and display result +- pass minigzip command line options to file_compress +- simplifying code of inflateSync to avoid gcc 2.8 bug + +- support CC="gcc -Wall" in configure -s (QingLong) +- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) +- fix test for shared library support to avoid compiler warnings +- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) +- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) +- do not use fdopen for Metrowerks on Mac (Brad Pettit)) +- add checks for gzputc and gzputc in example.c +- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) +- use const for the CRC table (Ken Raeburn) +- fixed "make uninstall" for shared libraries +- use Tracev instead of Trace in infblock.c +- in example.c use correct compressed length for test_sync +- suppress +vnocompatwarnings in configure for HPUX (not always supported) + +Changes in 1.0.7 (20 Jan 1998) +- fix gzseek which was broken in write mode +- return error for gzseek to negative absolute position +- fix configure for Linux (Chun-Chung Chen) +- increase stack space for MSC (Tim Wegner) +- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) +- define EXPORTVA for gzprintf (Gilles Vollant) +- added man page zlib.3 (Rick Rodgers) +- for contrib/untgz, fix makedir() and improve Makefile + +- check gzseek in write mode in example.c +- allocate extra buffer for seeks only if gzseek is actually called +- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) +- add inflateSyncPoint in zconf.h +- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def + +Changes in 1.0.6 (19 Jan 1998) +- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and + gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) +- Fix a deflate bug occurring only with compression level 0 (thanks to + Andy Buckler for finding this one). +- In minigzip, pass transparently also the first byte for .Z files. +- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() +- check Z_FINISH in inflate (thanks to Marc Schluper) +- Implement deflateCopy (thanks to Adam Costello) +- make static libraries by default in configure, add --shared option. +- move MSDOS or Windows specific files to directory msdos +- suppress the notion of partial flush to simplify the interface + (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) +- suppress history buffer provided by application to simplify the interface + (this feature was not implemented anyway in 1.0.4) +- next_in and avail_in must be initialized before calling inflateInit or + inflateInit2 +- add EXPORT in all exported functions (for Windows DLL) +- added Makefile.nt (thanks to Stephen Williams) +- added the unsupported "contrib" directory: + contrib/asm386/ by Gilles Vollant <info@winimage.com> + 386 asm code replacing longest_match(). + contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> + A C++ I/O streams interface to the zlib gz* functions + contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> + Another C++ I/O streams interface + contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> + A very simple tar.gz file extractor using zlib + contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> + How to use compress(), uncompress() and the gz* functions from VB. +- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression + level) in minigzip (thanks to Tom Lane) + +- use const for rommable constants in deflate +- added test for gzseek and gztell in example.c +- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) +- add undocumented function zError to convert error code to string + (for Tim Smithers) +- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. +- Use default memcpy for Symantec MSDOS compiler. +- Add EXPORT keyword for check_func (needed for Windows DLL) +- add current directory to LD_LIBRARY_PATH for "make test" +- create also a link for libz.so.1 +- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) +- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) +- added -soname for Linux in configure (Chun-Chung Chen, +- assign numbers to the exported functions in zlib.def (for Windows DLL) +- add advice in zlib.h for best usage of deflateSetDictionary +- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) +- allow compilation with ANSI keywords only enabled for TurboC in large model +- avoid "versionString"[0] (Borland bug) +- add NEED_DUMMY_RETURN for Borland +- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). +- allow compilation with CC +- defined STDC for OS/2 (David Charlap) +- limit external names to 8 chars for MVS (Thomas Lund) +- in minigzip.c, use static buffers only for 16-bit systems +- fix suffix check for "minigzip -d foo.gz" +- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) +- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) +- added makelcc.bat for lcc-win32 (Tom St Denis) +- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) +- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. +- check for unistd.h in configure (for off_t) +- remove useless check parameter in inflate_blocks_free +- avoid useless assignment of s->check to itself in inflate_blocks_new +- do not flush twice in gzclose (thanks to Ken Raeburn) +- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h +- use NO_ERRNO_H instead of enumeration of operating systems with errno.h +- work around buggy fclose on pipes for HP/UX +- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) +- fix configure if CC is already equal to gcc + +Changes in 1.0.5 (3 Jan 98) +- Fix inflate to terminate gracefully when fed corrupted or invalid data +- Use const for rommable constants in inflate +- Eliminate memory leaks on error conditions in inflate +- Removed some vestigial code in inflate +- Update web address in README + +Changes in 1.0.4 (24 Jul 96) +- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF + bit, so the decompressor could decompress all the correct data but went + on to attempt decompressing extra garbage data. This affected minigzip too. +- zlibVersion and gzerror return const char* (needed for DLL) +- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) +- use z_error only for DEBUG (avoid problem with DLLs) + +Changes in 1.0.3 (2 Jul 96) +- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS + small and medium models; this makes the library incompatible with previous + versions for these models. (No effect in large model or on other systems.) +- return OK instead of BUF_ERROR if previous deflate call returned with + avail_out as zero but there is nothing to do +- added memcmp for non STDC compilers +- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) +- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) +- better check for 16-bit mode MSC (avoids problem with Symantec) + +Changes in 1.0.2 (23 May 96) +- added Windows DLL support +- added a function zlibVersion (for the DLL support) +- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) +- Bytef is define's instead of typedef'd only for Borland C +- avoid reading uninitialized memory in example.c +- mention in README that the zlib format is now RFC1950 +- updated Makefile.dj2 +- added algorithm.doc + +Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] +- fix array overlay in deflate.c which sometimes caused bad compressed data +- fix inflate bug with empty stored block +- fix MSDOS medium model which was broken in 0.99 +- fix deflateParams() which could generated bad compressed data. +- Bytef is define'd instead of typedef'ed (work around Borland bug) +- added an INDEX file +- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), + Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) +- speed up adler32 for modern machines without auto-increment +- added -ansi for IRIX in configure +- static_init_done in trees.c is an int +- define unlink as delete for VMS +- fix configure for QNX +- add configure branch for SCO and HPUX +- avoid many warnings (unused variables, dead assignments, etc...) +- no fdopen for BeOS +- fix the Watcom fix for 32 bit mode (define FAR as empty) +- removed redefinition of Byte for MKWERKS +- work around an MWKERKS bug (incorrect merge of all .h files) + +Changes in 0.99 (27 Jan 96) +- allow preset dictionary shared between compressor and decompressor +- allow compression level 0 (no compression) +- add deflateParams in zlib.h: allow dynamic change of compression level + and compression strategy. +- test large buffers and deflateParams in example.c +- add optional "configure" to build zlib as a shared library +- suppress Makefile.qnx, use configure instead +- fixed deflate for 64-bit systems (detected on Cray) +- fixed inflate_blocks for 64-bit systems (detected on Alpha) +- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) +- always return Z_BUF_ERROR when deflate() has nothing to do +- deflateInit and inflateInit are now macros to allow version checking +- prefix all global functions and types with z_ with -DZ_PREFIX +- make falloc completely reentrant (inftrees.c) +- fixed very unlikely race condition in ct_static_init +- free in reverse order of allocation to help memory manager +- use zlib-1.0/* instead of zlib/* inside the tar.gz +- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith + -Wconversion -Wstrict-prototypes -Wmissing-prototypes" +- allow gzread on concatenated .gz files +- deflateEnd now returns Z_DATA_ERROR if it was premature +- deflate is finally (?) fully deterministic (no matches beyond end of input) +- Document Z_SYNC_FLUSH +- add uninstall in Makefile +- Check for __cpluplus in zlib.h +- Better test in ct_align for partial flush +- avoid harmless warnings for Borland C++ +- initialize hash_head in deflate.c +- avoid warning on fdopen (gzio.c) for HP cc -Aa +- include stdlib.h for STDC compilers +- include errno.h for Cray +- ignore error if ranlib doesn't exist +- call ranlib twice for NeXTSTEP +- use exec_prefix instead of prefix for libz.a +- renamed ct_* as _tr_* to avoid conflict with applications +- clear z->msg in inflateInit2 before any error return +- initialize opaque in example.c, gzio.c, deflate.c and inflate.c +- fixed typo in zconf.h (_GNUC__ => __GNUC__) +- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) +- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) +- in fcalloc, normalize pointer if size > 65520 bytes +- don't use special fcalloc for 32 bit Borland C++ +- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... +- use Z_BINARY instead of BINARY +- document that gzclose after gzdopen will close the file +- allow "a" as mode in gzopen. +- fix error checking in gzread +- allow skipping .gz extra-field on pipes +- added reference to Perl interface in README +- put the crc table in FAR data (I dislike more and more the medium model :) +- added get_crc_table +- added a dimension to all arrays (Borland C can't count). +- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast +- guard against multiple inclusion of *.h (for precompiled header on Mac) +- Watcom C pretends to be Microsoft C small model even in 32 bit mode. +- don't use unsized arrays to avoid silly warnings by Visual C++: + warning C4746: 'inflate_mask' : unsized array treated as '__far' + (what's wrong with far data in far model?). +- define enum out of inflate_blocks_state to allow compilation with C++ + +Changes in 0.95 (16 Aug 95) +- fix MSDOS small and medium model (now easier to adapt to any compiler) +- inlined send_bits +- fix the final (:-) bug for deflate with flush (output was correct but + not completely flushed in rare occasions). +- default window size is same for compression and decompression + (it's now sufficient to set MAX_WBITS in zconf.h). +- voidp -> voidpf and voidnp -> voidp (for consistency with other + typedefs and because voidnp was not near in large model). + +Changes in 0.94 (13 Aug 95) +- support MSDOS medium model +- fix deflate with flush (could sometimes generate bad output) +- fix deflateReset (zlib header was incorrectly suppressed) +- added support for VMS +- allow a compression level in gzopen() +- gzflush now calls fflush +- For deflate with flush, flush even if no more input is provided. +- rename libgz.a as libz.a +- avoid complex expression in infcodes.c triggering Turbo C bug +- work around a problem with gcc on Alpha (in INSERT_STRING) +- don't use inline functions (problem with some gcc versions) +- allow renaming of Byte, uInt, etc... with #define. +- avoid warning about (unused) pointer before start of array in deflate.c +- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c +- avoid reserved word 'new' in trees.c + +Changes in 0.93 (25 June 95) +- temporarily disable inline functions +- make deflate deterministic +- give enough lookahead for PARTIAL_FLUSH +- Set binary mode for stdin/stdout in minigzip.c for OS/2 +- don't even use signed char in inflate (not portable enough) +- fix inflate memory leak for segmented architectures + +Changes in 0.92 (3 May 95) +- don't assume that char is signed (problem on SGI) +- Clear bit buffer when starting a stored block +- no memcpy on Pyramid +- suppressed inftest.c +- optimized fill_window, put longest_match inline for gcc +- optimized inflate on stored blocks. +- untabify all sources to simplify patches + +Changes in 0.91 (2 May 95) +- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h +- Document the memory requirements in zconf.h +- added "make install" +- fix sync search logic in inflateSync +- deflate(Z_FULL_FLUSH) now works even if output buffer too short +- after inflateSync, don't scare people with just "lo world" +- added support for DJGPP + +Changes in 0.9 (1 May 95) +- don't assume that zalloc clears the allocated memory (the TurboC bug + was Mark's bug after all :) +- let again gzread copy uncompressed data unchanged (was working in 0.71) +- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented +- added a test of inflateSync in example.c +- moved MAX_WBITS to zconf.h because users might want to change that. +- document explicitly that zalloc(64K) on MSDOS must return a normalized + pointer (zero offset) +- added Makefiles for Microsoft C, Turbo C, Borland C++ +- faster crc32() + +Changes in 0.8 (29 April 95) +- added fast inflate (inffast.c) +- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this + is incompatible with previous versions of zlib which returned Z_OK. +- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) + (actually that was not a compiler bug, see 0.81 above) +- gzread no longer reads one extra byte in certain cases +- In gzio destroy(), don't reference a freed structure +- avoid many warnings for MSDOS +- avoid the ERROR symbol which is used by MS Windows + +Changes in 0.71 (14 April 95) +- Fixed more MSDOS compilation problems :( There is still a bug with + TurboC large model. + +Changes in 0.7 (14 April 95) +- Added full inflate support. +- Simplified the crc32() interface. The pre- and post-conditioning + (one's complement) is now done inside crc32(). WARNING: this is + incompatible with previous versions; see zlib.h for the new usage. + +Changes in 0.61 (12 April 95) +- workaround for a bug in TurboC. example and minigzip now work on MSDOS. + +Changes in 0.6 (11 April 95) +- added minigzip.c +- added gzdopen to reopen a file descriptor as gzFile +- added transparent reading of non-gziped files in gzread. +- fixed bug in gzread (don't read crc as data) +- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). +- don't allocate big arrays in the stack (for MSDOS) +- fix some MSDOS compilation problems + +Changes in 0.5: +- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but + not yet Z_FULL_FLUSH. +- support decompression but only in a single step (forced Z_FINISH) +- added opaque object for zalloc and zfree. +- added deflateReset and inflateReset +- added a variable zlib_version for consistency checking. +- renamed the 'filter' parameter of deflateInit2 as 'strategy'. + Added Z_FILTERED and Z_HUFFMAN_ONLY constants. + +Changes in 0.4: +- avoid "zip" everywhere, use zlib instead of ziplib. +- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush + if compression method == 8. +- added adler32 and crc32 +- renamed deflateOptions as deflateInit2, call one or the other but not both +- added the method parameter for deflateInit2. +- added inflateInit2 +- simplied considerably deflateInit and inflateInit by not supporting + user-provided history buffer. This is supported only in deflateInit2 + and inflateInit2. + +Changes in 0.3: +- prefix all macro names with Z_ +- use Z_FINISH instead of deflateEnd to finish compression. +- added Z_HUFFMAN_ONLY +- added gzerror() diff --git a/3party/zlib/FAQ b/3party/zlib/FAQ new file mode 100644 index 0000000000..1a22750a58 --- /dev/null +++ b/3party/zlib/FAQ @@ -0,0 +1,366 @@ + + Frequently Asked Questions about zlib + + +If your question is not there, please check the zlib home page +http://zlib.net/ which may have more recent information. +The lastest zlib FAQ is at http://zlib.net/zlib_faq.html + + + 1. Is zlib Y2K-compliant? + + Yes. zlib doesn't handle dates. + + 2. Where can I get a Windows DLL version? + + The zlib sources can be compiled without change to produce a DLL. See the + file win32/DLL_FAQ.txt in the zlib distribution. Pointers to the + precompiled DLL are found in the zlib web site at http://zlib.net/ . + + 3. Where can I get a Visual Basic interface to zlib? + + See + * http://marknelson.us/1997/01/01/zlib-engine/ + * win32/DLL_FAQ.txt in the zlib distribution + + 4. compress() returns Z_BUF_ERROR. + + Make sure that before the call of compress(), the length of the compressed + buffer is equal to the available size of the compressed buffer and not + zero. For Visual Basic, check that this parameter is passed by reference + ("as any"), not by value ("as long"). + + 5. deflate() or inflate() returns Z_BUF_ERROR. + + Before making the call, make sure that avail_in and avail_out are not zero. + When setting the parameter flush equal to Z_FINISH, also make sure that + avail_out is big enough to allow processing all pending input. Note that a + Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be + made with more input or output space. A Z_BUF_ERROR may in fact be + unavoidable depending on how the functions are used, since it is not + possible to tell whether or not there is more output pending when + strm.avail_out returns with zero. See http://zlib.net/zlib_how.html for a + heavily annotated example. + + 6. Where's the zlib documentation (man pages, etc.)? + + It's in zlib.h . Examples of zlib usage are in the files example.c and + minigzip.c, with more in examples/ . + + 7. Why don't you use GNU autoconf or libtool or ...? + + Because we would like to keep zlib as a very small and simple package. + zlib is rather portable and doesn't need much configuration. + + 8. I found a bug in zlib. + + Most of the time, such problems are due to an incorrect usage of zlib. + Please try to reproduce the problem with a small program and send the + corresponding source to us at zlib@gzip.org . Do not send multi-megabyte + data files without prior agreement. + + 9. Why do I get "undefined reference to gzputc"? + + If "make test" produces something like + + example.o(.text+0x154): undefined reference to `gzputc' + + check that you don't have old files libz.* in /usr/lib, /usr/local/lib or + /usr/X11R6/lib. Remove any old versions, then do "make install". + +10. I need a Delphi interface to zlib. + + See the contrib/delphi directory in the zlib distribution. + +11. Can zlib handle .zip archives? + + Not by itself, no. See the directory contrib/minizip in the zlib + distribution. + +12. Can zlib handle .Z files? + + No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt + the code of uncompress on your own. + +13. How can I make a Unix shared library? + + make clean + ./configure -s + make + +14. How do I install a shared zlib library on Unix? + + After the above, then: + + make install + + However, many flavors of Unix come with a shared zlib already installed. + Before going to the trouble of compiling a shared version of zlib and + trying to install it, you may want to check if it's already there! If you + can #include <zlib.h>, it's there. The -lz option will probably link to + it. You can check the version at the top of zlib.h or with the + ZLIB_VERSION symbol defined in zlib.h . + +15. I have a question about OttoPDF. + + We are not the authors of OttoPDF. The real author is on the OttoPDF web + site: Joel Hainley, jhainley@myndkryme.com. + +16. Can zlib decode Flate data in an Adobe PDF file? + + Yes. See http://www.pdflib.com/ . To modify PDF forms, see + http://sourceforge.net/projects/acroformtool/ . + +17. Why am I getting this "register_frame_info not found" error on Solaris? + + After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib + generates an error such as: + + ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so: + symbol __register_frame_info: referenced symbol not found + + The symbol __register_frame_info is not part of zlib, it is generated by + the C compiler (cc or gcc). You must recompile applications using zlib + which have this problem. This problem is specific to Solaris. See + http://www.sunfreeware.com for Solaris versions of zlib and applications + using zlib. + +18. Why does gzip give an error on a file I make with compress/deflate? + + The compress and deflate functions produce data in the zlib format, which + is different and incompatible with the gzip format. The gz* functions in + zlib on the other hand use the gzip format. Both the zlib and gzip formats + use the same compressed data format internally, but have different headers + and trailers around the compressed data. + +19. Ok, so why are there two different formats? + + The gzip format was designed to retain the directory information about a + single file, such as the name and last modification date. The zlib format + on the other hand was designed for in-memory and communication channel + applications, and has a much more compact header and trailer and uses a + faster integrity check than gzip. + +20. Well that's nice, but how do I make a gzip file in memory? + + You can request that deflate write the gzip format instead of the zlib + format using deflateInit2(). You can also request that inflate decode the + gzip format using inflateInit2(). Read zlib.h for more details. + +21. Is zlib thread-safe? + + Yes. However any library routines that zlib uses and any application- + provided memory allocation routines must also be thread-safe. zlib's gz* + functions use stdio library routines, and most of zlib's functions use the + library memory allocation routines by default. zlib's *Init* functions + allow for the application to provide custom memory allocation routines. + + Of course, you should only operate on any given zlib or gzip stream from a + single thread at a time. + +22. Can I use zlib in my commercial application? + + Yes. Please read the license in zlib.h. + +23. Is zlib under the GNU license? + + No. Please read the license in zlib.h. + +24. The license says that altered source versions must be "plainly marked". So + what exactly do I need to do to meet that requirement? + + You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In + particular, the final version number needs to be changed to "f", and an + identification string should be appended to ZLIB_VERSION. Version numbers + x.x.x.f are reserved for modifications to zlib by others than the zlib + maintainers. For example, if the version of the base zlib you are altering + is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and + ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also + update the version strings in deflate.c and inftrees.c. + + For altered source distributions, you should also note the origin and + nature of the changes in zlib.h, as well as in ChangeLog and README, along + with the dates of the alterations. The origin should include at least your + name (or your company's name), and an email address to contact for help or + issues with the library. + + Note that distributing a compiled zlib library along with zlib.h and + zconf.h is also a source distribution, and so you should change + ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes + in zlib.h as you would for a full source distribution. + +25. Will zlib work on a big-endian or little-endian architecture, and can I + exchange compressed data between them? + + Yes and yes. + +26. Will zlib work on a 64-bit machine? + + Yes. It has been tested on 64-bit machines, and has no dependence on any + data types being limited to 32-bits in length. If you have any + difficulties, please provide a complete problem report to zlib@gzip.org + +27. Will zlib decompress data from the PKWare Data Compression Library? + + No. The PKWare DCL uses a completely different compressed data format than + does PKZIP and zlib. However, you can look in zlib's contrib/blast + directory for a possible solution to your problem. + +28. Can I access data randomly in a compressed stream? + + No, not without some preparation. If when compressing you periodically use + Z_FULL_FLUSH, carefully write all the pending data at those points, and + keep an index of those locations, then you can start decompression at those + points. You have to be careful to not use Z_FULL_FLUSH too often, since it + can significantly degrade compression. Alternatively, you can scan a + deflate stream once to generate an index, and then use that index for + random access. See examples/zran.c . + +29. Does zlib work on MVS, OS/390, CICS, etc.? + + It has in the past, but we have not heard of any recent evidence. There + were working ports of zlib 1.1.4 to MVS, but those links no longer work. + If you know of recent, successful applications of zlib on these operating + systems, please let us know. Thanks. + +30. Is there some simpler, easier to read version of inflate I can look at to + understand the deflate format? + + First off, you should read RFC 1951. Second, yes. Look in zlib's + contrib/puff directory. + +31. Does zlib infringe on any patents? + + As far as we know, no. In fact, that was originally the whole point behind + zlib. Look here for some more information: + + http://www.gzip.org/#faq11 + +32. Can zlib work with greater than 4 GB of data? + + Yes. inflate() and deflate() will process any amount of data correctly. + Each call of inflate() or deflate() is limited to input and output chunks + of the maximum value that can be stored in the compiler's "unsigned int" + type, but there is no limit to the number of chunks. Note however that the + strm.total_in and strm_total_out counters may be limited to 4 GB. These + counters are provided as a convenience and are not used internally by + inflate() or deflate(). The application can easily set up its own counters + updated after each call of inflate() or deflate() to count beyond 4 GB. + compress() and uncompress() may be limited to 4 GB, since they operate in a + single call. gzseek() and gztell() may be limited to 4 GB depending on how + zlib is compiled. See the zlibCompileFlags() function in zlib.h. + + The word "may" appears several times above since there is a 4 GB limit only + if the compiler's "long" type is 32 bits. If the compiler's "long" type is + 64 bits, then the limit is 16 exabytes. + +33. Does zlib have any security vulnerabilities? + + The only one that we are aware of is potentially in gzprintf(). If zlib is + compiled to use sprintf() or vsprintf(), then there is no protection + against a buffer overflow of an 8K string space (or other value as set by + gzbuffer()), other than the caller of gzprintf() assuring that the output + will not exceed 8K. On the other hand, if zlib is compiled to use + snprintf() or vsnprintf(), which should normally be the case, then there is + no vulnerability. The ./configure script will display warnings if an + insecure variation of sprintf() will be used by gzprintf(). Also the + zlibCompileFlags() function will return information on what variant of + sprintf() is used by gzprintf(). + + If you don't have snprintf() or vsnprintf() and would like one, you can + find a portable implementation here: + + http://www.ijs.si/software/snprintf/ + + Note that you should be using the most recent version of zlib. Versions + 1.1.3 and before were subject to a double-free vulnerability, and versions + 1.2.1 and 1.2.2 were subject to an access exception when decompressing + invalid compressed data. + +34. Is there a Java version of zlib? + + Probably what you want is to use zlib in Java. zlib is already included + as part of the Java SDK in the java.util.zip package. If you really want + a version of zlib written in the Java language, look on the zlib home + page for links: http://zlib.net/ . + +35. I get this or that compiler or source-code scanner warning when I crank it + up to maximally-pedantic. Can't you guys write proper code? + + Many years ago, we gave up attempting to avoid warnings on every compiler + in the universe. It just got to be a waste of time, and some compilers + were downright silly as well as contradicted each other. So now, we simply + make sure that the code always works. + +36. Valgrind (or some similar memory access checker) says that deflate is + performing a conditional jump that depends on an uninitialized value. + Isn't that a bug? + + No. That is intentional for performance reasons, and the output of deflate + is not affected. This only started showing up recently since zlib 1.2.x + uses malloc() by default for allocations, whereas earlier versions used + calloc(), which zeros out the allocated memory. Even though the code was + correct, versions 1.2.4 and later was changed to not stimulate these + checkers. + +37. Will zlib read the (insert any ancient or arcane format here) compressed + data format? + + Probably not. Look in the comp.compression FAQ for pointers to various + formats and associated software. + +38. How can I encrypt/decrypt zip files with zlib? + + zlib doesn't support encryption. The original PKZIP encryption is very + weak and can be broken with freely available programs. To get strong + encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib + compression. For PKZIP compatible "encryption", look at + http://www.info-zip.org/ + +39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings? + + "gzip" is the gzip format, and "deflate" is the zlib format. They should + probably have called the second one "zlib" instead to avoid confusion with + the raw deflate compressed data format. While the HTTP 1.1 RFC 2616 + correctly points to the zlib specification in RFC 1950 for the "deflate" + transfer encoding, there have been reports of servers and browsers that + incorrectly produce or expect raw deflate data per the deflate + specficiation in RFC 1951, most notably Microsoft. So even though the + "deflate" transfer encoding using the zlib format would be the more + efficient approach (and in fact exactly what the zlib format was designed + for), using the "gzip" transfer encoding is probably more reliable due to + an unfortunate choice of name on the part of the HTTP 1.1 authors. + + Bottom line: use the gzip format for HTTP 1.1 encoding. + +40. Does zlib support the new "Deflate64" format introduced by PKWare? + + No. PKWare has apparently decided to keep that format proprietary, since + they have not documented it as they have previous compression formats. In + any case, the compression improvements are so modest compared to other more + modern approaches, that it's not worth the effort to implement. + +41. I'm having a problem with the zip functions in zlib, can you help? + + There are no zip functions in zlib. You are probably using minizip by + Giles Vollant, which is found in the contrib directory of zlib. It is not + part of zlib. In fact none of the stuff in contrib is part of zlib. The + files in there are not supported by the zlib authors. You need to contact + the authors of the respective contribution for help. + +42. The match.asm code in contrib is under the GNU General Public License. + Since it's part of zlib, doesn't that mean that all of zlib falls under the + GNU GPL? + + No. The files in contrib are not part of zlib. They were contributed by + other authors and are provided as a convenience to the user within the zlib + distribution. Each item in contrib has its own license. + +43. Is zlib subject to export controls? What is its ECCN? + + zlib is not subject to export controls, and so is classified as EAR99. + +44. Can you please sign these lengthy legal documents and fax them back to us + so that we can use your software in our product? + + No. Go away. Shoo. diff --git a/3party/zlib/INDEX b/3party/zlib/INDEX new file mode 100644 index 0000000000..f6c51ca175 --- /dev/null +++ b/3party/zlib/INDEX @@ -0,0 +1,65 @@ +CMakeLists.txt cmake build file +ChangeLog history of changes +FAQ Frequently Asked Questions about zlib +INDEX this file +Makefile dummy Makefile that tells you to ./configure +Makefile.in template for Unix Makefile +README guess what +configure configure script for Unix +make_vms.com makefile for VMS +treebuild.xml XML description of source file dependencies +zconf.h.cmakein zconf.h template for cmake +zconf.h.in zconf.h template for configure +zlib.3 Man page for zlib +zlib.3.pdf Man page in PDF format +zlib.map Linux symbol information +zlib.pc.in Template for pkg-config descriptor +zlib2ansi perl script to convert source files for C++ compilation + +amiga/ makefiles for Amiga SAS C +doc/ documentation for formats and algorithms +msdos/ makefiles for MSDOS +nintendods/ makefile for Nintendo DS +old/ makefiles for various architectures and zlib documentation + files that have not yet been updated for zlib 1.2.x +qnx/ makefiles for QNX +watcom/ makefiles for OpenWatcom +win32/ makefiles for Windows + + zlib public header files (required for library use): +zconf.h +zlib.h + + private source files used to build the zlib library: +adler32.c +compress.c +crc32.c +crc32.h +deflate.c +deflate.h +gzclose.c +gzguts.h +gzlib.c +gzread.c +gzwrite.c +infback.c +inffast.c +inffast.h +inffixed.h +inflate.c +inflate.h +inftrees.c +inftrees.h +trees.c +trees.h +uncompr.c +zutil.c +zutil.h + + source files for sample programs: +example.c +minigzip.c +See examples/README.examples for more + + unsupported contribution by third parties +See contrib/README.contrib diff --git a/3party/zlib/Makefile.in b/3party/zlib/Makefile.in new file mode 100644 index 0000000000..5b15bd00d7 --- /dev/null +++ b/3party/zlib/Makefile.in @@ -0,0 +1,257 @@ +# Makefile for zlib +# Copyright (C) 1995-2010 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile and test, type: +# ./configure; make test +# Normally configure builds both a static and a shared library. +# If you want to build just a static library, use: ./configure --static + +# To use the asm code, type: +# cp contrib/asm?86/match.S ./match.S +# make LOC=-DASMV OBJA=match.o + +# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type: +# make install +# To install in $HOME instead of /usr/local, use: +# make install prefix=$HOME + +CC=cc + +CFLAGS=-O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-g -DDEBUG +#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ +# -Wstrict-prototypes -Wmissing-prototypes + +SFLAGS=-O +LDFLAGS= +TEST_LDFLAGS=-L. libz.a +LDSHARED=$(CC) +CPP=$(CC) -E + +STATICLIB=libz.a +SHAREDLIB=libz.so +SHAREDLIBV=libz.so.1.2.5 +SHAREDLIBM=libz.so.1 +LIBS=$(STATICLIB) $(SHAREDLIBV) + +AR=ar rc +RANLIB=ranlib +LDCONFIG=ldconfig +LDSHAREDLIBC=-lc +TAR=tar +SHELL=/bin/sh +EXE= + +prefix = /usr/local +exec_prefix = ${prefix} +libdir = ${exec_prefix}/lib +sharedlibdir = ${libdir} +includedir = ${prefix}/include +mandir = ${prefix}/share/man +man3dir = ${mandir}/man3 +pkgconfigdir = ${libdir}/pkgconfig + +OBJC = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \ + gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o + +PIC_OBJC = adler32.lo compress.lo crc32.lo deflate.lo gzclose.lo gzlib.lo gzread.lo \ + gzwrite.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo uncompr.lo zutil.lo + +# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo +OBJA = +PIC_OBJA = + +OBJS = $(OBJC) $(OBJA) + +PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA) + +all: static shared + +static: example$(EXE) minigzip$(EXE) + +shared: examplesh$(EXE) minigzipsh$(EXE) + +all64: example64$(EXE) minigzip64$(EXE) + +check: test + +test: all teststatic testshared + +teststatic: static + @if echo hello world | ./minigzip | ./minigzip -d && ./example; then \ + echo ' *** zlib test OK ***'; \ + else \ + echo ' *** zlib test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +testshared: shared + @LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \ + LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \ + DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \ + SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \ + if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh; then \ + echo ' *** zlib shared test OK ***'; \ + else \ + echo ' *** zlib shared test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +test64: all64 + @if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64; then \ + echo ' *** zlib 64-bit test OK ***'; \ + else \ + echo ' *** zlib 64-bit test FAILED ***'; false; \ + fi + -@rm -f foo.gz + +libz.a: $(OBJS) + $(AR) $@ $(OBJS) + -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 + +match.o: match.S + $(CPP) match.S > _match.s + $(CC) -c _match.s + mv _match.o match.o + rm -f _match.s + +match.lo: match.S + $(CPP) match.S > _match.s + $(CC) -c -fPIC _match.s + mv _match.o match.lo + rm -f _match.s + +example64.o: example.c zlib.h zconf.h + $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ example.c + +minigzip64.o: minigzip.c zlib.h zconf.h + $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ minigzip.c + +.SUFFIXES: .lo + +.c.lo: + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $< + -@mv objs/$*.o $@ + +$(SHAREDLIBV): $(PIC_OBJS) + $(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS) + rm -f $(SHAREDLIB) $(SHAREDLIBM) + ln -s $@ $(SHAREDLIB) + ln -s $@ $(SHAREDLIBM) + -@rmdir objs + +example$(EXE): example.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS) + +minigzip$(EXE): minigzip.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS) + +examplesh$(EXE): example.o $(SHAREDLIBV) + $(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV) + +minigzipsh$(EXE): minigzip.o $(SHAREDLIBV) + $(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV) + +example64$(EXE): example64.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS) + +minigzip64$(EXE): minigzip64.o $(STATICLIB) + $(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS) + +install-libs: $(LIBS) + -@if [ ! -d $(DESTDIR)$(exec_prefix) ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi + -@if [ ! -d $(DESTDIR)$(libdir) ]; then mkdir -p $(DESTDIR)$(libdir); fi + -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi + -@if [ ! -d $(DESTDIR)$(man3dir) ]; then mkdir -p $(DESTDIR)$(man3dir); fi + -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi + cp $(STATICLIB) $(DESTDIR)$(libdir) + cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir) + cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB) + -@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1 + -@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ + chmod 755 $(SHAREDLIBV); \ + rm -f $(SHAREDLIB) $(SHAREDLIBM); \ + ln -s $(SHAREDLIBV) $(SHAREDLIB); \ + ln -s $(SHAREDLIBV) $(SHAREDLIBM); \ + ($(LDCONFIG) || true) >/dev/null 2>&1; \ + fi + cp zlib.3 $(DESTDIR)$(man3dir) + chmod 644 $(DESTDIR)$(man3dir)/zlib.3 + cp zlib.pc $(DESTDIR)$(pkgconfigdir) + chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc +# The ranlib in install is needed on NeXTSTEP which checks file times +# ldconfig is for Linux + +install: install-libs + -@if [ ! -d $(DESTDIR)$(includedir) ]; then mkdir -p $(DESTDIR)$(includedir); fi + cp zlib.h zconf.h $(DESTDIR)$(includedir) + chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h + +uninstall: + cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h + cd $(DESTDIR)$(libdir); rm -f libz.a; \ + if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ + rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \ + fi + cd $(DESTDIR)$(man3dir); rm -f zlib.3 + cd $(DESTDIR)$(pkgconfigdir); rm -f zlib.pc + +docs: zlib.3.pdf + +zlib.3.pdf: zlib.3 + groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf + +zconf.h.in: zconf.h.cmakein + sed "/^#cmakedefine/D" < zconf.h.cmakein > zconf.h.in + touch -r zconf.h.cmakein zconf.h.in + +zconf: zconf.h.in + cp -p zconf.h.in zconf.h + +mostlyclean: clean +clean: + rm -f *.o *.lo *~ \ + example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \ + example64$(EXE) minigzip64$(EXE) \ + libz.* foo.gz so_locations \ + _match.s maketree contrib/infback9/*.o + rm -rf objs + +maintainer-clean: distclean +distclean: clean zconf docs + rm -f Makefile zlib.pc + -@rm -f .DS_Store + -@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile + -@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile + -@touch -r Makefile.in Makefile + +tags: + etags *.[ch] + +depend: + makedepend -- $(CFLAGS) -- *.[ch] + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +adler32.o zutil.o: zutil.h zlib.h zconf.h +gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h +compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h +crc32.o: zutil.h zlib.h zconf.h crc32.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h + +adler32.lo zutil.lo: zutil.h zlib.h zconf.h +gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h +compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h +crc32.lo: zutil.h zlib.h zconf.h crc32.h +deflate.lo: deflate.h zutil.h zlib.h zconf.h +infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h +inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.lo: zutil.h zlib.h zconf.h inftrees.h +trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h diff --git a/3party/zlib/README b/3party/zlib/README new file mode 100644 index 0000000000..d4219bf889 --- /dev/null +++ b/3party/zlib/README @@ -0,0 +1,115 @@ +ZLIB DATA COMPRESSION LIBRARY + +zlib 1.2.5 is a general purpose data compression library. All the code is +thread safe. The data format used by the zlib library is described by RFCs +(Request for Comments) 1950 to 1952 in the files +http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) +and rfc1952.txt (gzip format). + +All functions of the compression library are documented in the file zlib.h +(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example +of the library is given in the file example.c which also tests that the library +is working correctly. Another example is given in the file minigzip.c. The +compression library itself is composed of all source files except example.c and +minigzip.c. + +To compile all files and run the test program, follow the instructions given at +the top of Makefile.in. In short "./configure; make test", and if that goes +well, "make install" should work for most flavors of Unix. For Windows, use one +of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use +make_vms.com. + +Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant +<info@winimage.com> for the Windows DLL version. The zlib home page is +http://zlib.net/ . Before reporting a problem, please check this site to +verify that you have the latest version of zlib; otherwise get the latest +version and check whether the problem still exists or not. + +PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help. + +Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997 +issue of Dr. Dobb's Journal; a copy of the article is available at +http://marknelson.us/1997/01/01/zlib-engine/ . + +The changes made in version 1.2.5 are documented in the file ChangeLog. + +Unsupported third party contributions are provided in directory contrib/ . + +zlib is available in Java using the java.util.zip package, documented at +http://java.sun.com/developer/technicalArticles/Programming/compression/ . + +A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available +at CPAN (Comprehensive Perl Archive Network) sites, including +http://search.cpan.org/~pmqs/IO-Compress-Zlib/ . + +A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is +available in Python 1.5 and later versions, see +http://www.python.org/doc/lib/module-zlib.html . + +zlib is built into tcl: http://wiki.tcl.tk/4610 . + +An experimental package to read and write files in .zip format, written on top +of zlib by Gilles Vollant <info@winimage.com>, is available in the +contrib/minizip directory of zlib. + + +Notes for some targets: + +- For Windows DLL versions, please see win32/DLL_FAQ.txt + +- For 64-bit Irix, deflate.c must be compiled without any optimization. With + -O, one libpng test fails. The test works in 32 bit mode (with the -n32 + compiler flag). The compiler bug has been reported to SGI. + +- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works + when compiled with cc. + +- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is + necessary to get gzprintf working correctly. This is done by configure. + +- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with + other compilers. Use "make test" to check your compiler. + +- gzdopen is not supported on RISCOS or BEOS. + +- For PalmOs, see http://palmzlib.sourceforge.net/ + + +Acknowledgments: + + The deflate format used by zlib was defined by Phil Katz. The deflate and + zlib specifications were written by L. Peter Deutsch. Thanks to all the + people who reported problems and suggested various improvements in zlib; they + are too numerous to cite here. + +Copyright notice: + + (C) 1995-2010 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + +If you use the zlib library in a product, we would appreciate *not* receiving +lengthy legal documents to sign. The sources are provided for free but without +warranty of any kind. The library has been entirely written by Jean-loup +Gailly and Mark Adler; it does not include third-party code. + +If you redistribute modified sources, we would appreciate that you include in +the file ChangeLog history information documenting your changes. Please read +the FAQ for more information on the distribution of modified source versions. diff --git a/3party/zlib/amiga/Makefile.pup b/3party/zlib/amiga/Makefile.pup new file mode 100644 index 0000000000..8940c120fb --- /dev/null +++ b/3party/zlib/amiga/Makefile.pup @@ -0,0 +1,69 @@ +# Amiga powerUP (TM) Makefile +# makefile for libpng and SAS C V6.58/7.00 PPC compiler +# Copyright (C) 1998 by Andreas R. Kleinert + +LIBNAME = libzip.a + +CC = scppc +CFLAGS = NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \ + OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8 NOVER +AR = ppc-amigaos-ar cr +RANLIB = ppc-amigaos-ranlib +LD = ppc-amigaos-ld -r +LDFLAGS = -o +LDLIBS = LIB:scppc.a LIB:end.o +RM = delete quiet + +OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \ + uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o + +TEST_OBJS = example.o minigzip.o + +all: example minigzip + +check: test +test: all + example + echo hello world | minigzip | minigzip -d + +$(LIBNAME): $(OBJS) + $(AR) $@ $(OBJS) + -$(RANLIB) $@ + +example: example.o $(LIBNAME) + $(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS) + +minigzip: minigzip.o $(LIBNAME) + $(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS) + +mostlyclean: clean +clean: + $(RM) *.o example minigzip $(LIBNAME) foo.gz + +zip: + zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \ + descrip.mms *.[ch] + +tgz: + cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \ + zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch] + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +adler32.o: zlib.h zconf.h +compress.o: zlib.h zconf.h +crc32.o: crc32.h zlib.h zconf.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +example.o: zlib.h zconf.h +gzclose.o: zlib.h zconf.h gzguts.h +gzlib.o: zlib.h zconf.h gzguts.h +gzread.o: zlib.h zconf.h gzguts.h +gzwrite.o: zlib.h zconf.h gzguts.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +minigzip.o: zlib.h zconf.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h +uncompr.o: zlib.h zconf.h +zutil.o: zutil.h zlib.h zconf.h diff --git a/3party/zlib/amiga/Makefile.sas b/3party/zlib/amiga/Makefile.sas new file mode 100644 index 0000000000..749e291527 --- /dev/null +++ b/3party/zlib/amiga/Makefile.sas @@ -0,0 +1,68 @@ +# SMakefile for zlib +# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly +# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi> +# Amiga, SAS/C 6.56 & Smake + +CC=sc +CFLAGS=OPT +#CFLAGS=OPT CPU=68030 +#CFLAGS=DEBUG=LINE +LDFLAGS=LIB z.lib + +SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \ + NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX \ + DEF=POSTINC + +OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \ + uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o + +TEST_OBJS = example.o minigzip.o + +all: SCOPTIONS example minigzip + +check: test +test: all + example + echo hello world | minigzip | minigzip -d + +install: z.lib + copy clone zlib.h zconf.h INCLUDE: + copy clone z.lib LIB: + +z.lib: $(OBJS) + oml z.lib r $(OBJS) + +example: example.o z.lib + $(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS) + +minigzip: minigzip.o z.lib + $(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS) + +mostlyclean: clean +clean: + -delete force quiet example minigzip *.o z.lib foo.gz *.lnk SCOPTIONS + +SCOPTIONS: Makefile.sas + copy to $@ <from < +$(SCOPTIONS) +< + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +adler32.o: zlib.h zconf.h +compress.o: zlib.h zconf.h +crc32.o: crc32.h zlib.h zconf.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +example.o: zlib.h zconf.h +gzclose.o: zlib.h zconf.h gzguts.h +gzlib.o: zlib.h zconf.h gzguts.h +gzread.o: zlib.h zconf.h gzguts.h +gzwrite.o: zlib.h zconf.h gzguts.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +minigzip.o: zlib.h zconf.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h +uncompr.o: zlib.h zconf.h +zutil.o: zutil.h zlib.h zconf.h diff --git a/3party/zlib/configure b/3party/zlib/configure new file mode 100755 index 0000000000..bd9edd26cd --- /dev/null +++ b/3party/zlib/configure @@ -0,0 +1,596 @@ +#!/bin/sh +# configure script for zlib. +# +# Normally configure builds both a static and a shared library. +# If you want to build just a static library, use: ./configure --static +# +# To impose specific compiler or flags or install directory, use for example: +# prefix=$HOME CC=cc CFLAGS="-O4" ./configure +# or for csh/tcsh users: +# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) + +# Incorrect settings of CC or CFLAGS may prevent creating a shared library. +# If you have problems, try without defining CC and CFLAGS before reporting +# an error. + +if [ -n "${CHOST}" ]; then + uname="$(echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')" + CROSS_PREFIX="${CHOST}-" +fi + +STATICLIB=libz.a +LDFLAGS="${LDFLAGS} -L. ${STATICLIB}" +VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` +VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` +VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` +VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` +if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then + AR=${AR-"${CROSS_PREFIX}ar"} + test -n "${CROSS_PREFIX}" && echo Using ${AR} +else + AR=${AR-"ar"} + test -n "${CROSS_PREFIX}" && echo Using ${AR} +fi +AR_RC="${AR} rc" +if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then + RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} + test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} +else + RANLIB=${RANLIB-"ranlib"} +fi +if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then + NM=${NM-"${CROSS_PREFIX}nm"} + test -n "${CROSS_PREFIX}" && echo Using ${NM} +else + NM=${NM-"nm"} +fi +LDCONFIG=${LDCONFIG-"ldconfig"} +LDSHAREDLIBC="${LDSHAREDLIBC--lc}" +prefix=${prefix-/usr/local} +exec_prefix=${exec_prefix-'${prefix}'} +libdir=${libdir-'${exec_prefix}/lib'} +sharedlibdir=${sharedlibdir-'${libdir}'} +includedir=${includedir-'${prefix}/include'} +mandir=${mandir-'${prefix}/share/man'} +shared_ext='.so' +shared=1 +zprefix=0 +build64=0 +gcc=0 +old_cc="$CC" +old_cflags="$CFLAGS" + +while test $# -ge 1 +do +case "$1" in + -h* | --help) + echo 'usage:' + echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' + echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' + echo ' [--includedir=INCLUDEDIR]' + exit 0 ;; + -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; + -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; + -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; + --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; + -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; + -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; + -p* | --prefix) prefix="$2"; shift; shift ;; + -e* | --eprefix) exec_prefix="$2"; shift; shift ;; + -l* | --libdir) libdir="$2"; shift; shift ;; + -i* | --includedir) includedir="$2"; shift; shift ;; + -s* | --shared | --enable-shared) shared=1; shift ;; + -t | --static) shared=0; shift ;; + -z* | --zprefix) zprefix=1; shift ;; + -6* | --64) build64=1; shift ;; + --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;; + --localstatedir=*) echo "ignored option: --localstatedir"; shift ;; + *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;; + esac +done + +test=ztest$$ +cat > $test.c <<EOF +extern int getchar(); +int hello() {return getchar();} +EOF + +test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... +cc=${CC-${CROSS_PREFIX}gcc} +cflags=${CFLAGS-"-O3"} +# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure +case "$cc" in + *gcc*) gcc=1 ;; +esac + +if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then + CC="$cc" + SFLAGS="${CFLAGS--O3} -fPIC" + CFLAGS="${CFLAGS--O3}" + if test $build64 -eq 1; then + CFLAGS="${CFLAGS} -m64" + SFLAGS="${SFLAGS} -m64" + fi + if test "${ZLIBGCCWARN}" = "YES"; then + CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" + fi + if test -z "$uname"; then + uname=`(uname -s || echo unknown) 2>/dev/null` + fi + case "$uname" in + Linux* | linux* | GNU | GNU/* | *BSD | DragonFly) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; + CYGWIN* | Cygwin* | cygwin* | OS/2*) + EXE='.exe' ;; + MINGW*|mingw*) +# temporary bypass + rm -f $test.[co] $test $test$shared_ext + echo "Please use win32/Makefile.gcc instead." + exit 1 + LDSHARED=${LDSHARED-"$cc -shared"} + LDSHAREDLIBC="" + EXE='.exe' ;; + QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 + # (alain.bonnefoy@icbt.com) + LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; + HP-UX*) + LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} + case `(uname -m || echo unknown) 2>/dev/null` in + ia64) + shared_ext='.so' + SHAREDLIB='libz.so' ;; + *) + shared_ext='.sl' + SHAREDLIB='libz.sl' ;; + esac ;; + Darwin*) shared_ext='.dylib' + SHAREDLIB=libz$shared_ext + SHAREDLIBV=libz.$VER$shared_ext + SHAREDLIBM=libz.$VER1$shared_ext + LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} ;; + *) LDSHARED=${LDSHARED-"$cc -shared"} ;; + esac +else + # find system name and corresponding cc options + CC=${CC-cc} + gcc=0 + if test -z "$uname"; then + uname=`(uname -sr || echo unknown) 2>/dev/null` + fi + case "$uname" in + HP-UX*) SFLAGS=${CFLAGS-"-O +z"} + CFLAGS=${CFLAGS-"-O"} +# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} + LDSHARED=${LDSHARED-"ld -b"} + case `(uname -m || echo unknown) 2>/dev/null` in + ia64) + shared_ext='.so' + SHAREDLIB='libz.so' ;; + *) + shared_ext='.sl' + SHAREDLIB='libz.sl' ;; + esac ;; + IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} + CFLAGS=${CFLAGS-"-ansi -O2"} + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; + OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} + CFLAGS=${CFLAGS-"-O -std1"} + LDFLAGS="${LDFLAGS} -Wl,-rpath,." + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; + OSF1*) SFLAGS=${CFLAGS-"-O -std1"} + CFLAGS=${CFLAGS-"-O -std1"} + LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; + QNX*) SFLAGS=${CFLAGS-"-4 -O"} + CFLAGS=${CFLAGS-"-4 -O"} + LDSHARED=${LDSHARED-"cc"} + RANLIB=${RANLIB-"true"} + AR_RC="cc -A" ;; + SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} + CFLAGS=${CFLAGS-"-O3"} + LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; + SunOS\ 5*) LDSHARED=${LDSHARED-"cc -G"} + case `(uname -m || echo unknown) 2>/dev/null` in + i86*) + SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."} + CFLAGS=${CFLAGS-"-xpentium -fast"} ;; + *) + SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."} + CFLAGS=${CFLAGS-"-fast -xcg92"} ;; + esac ;; + SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} + CFLAGS=${CFLAGS-"-O2"} + LDSHARED=${LDSHARED-"ld"} ;; + SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} + CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} + LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; + UNIX_System_V\ 4.2.0) + SFLAGS=${CFLAGS-"-KPIC -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + UNIX_SV\ 4.2MP) + SFLAGS=${CFLAGS-"-Kconform_pic -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + OpenUNIX\ 5) + SFLAGS=${CFLAGS-"-KPIC -O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -G"} ;; + AIX*) # Courtesy of dbakker@arrayasolutions.com + SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} + CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} + LDSHARED=${LDSHARED-"xlc -G"} ;; + # send working options for other systems to zlib@gzip.org + *) SFLAGS=${CFLAGS-"-O"} + CFLAGS=${CFLAGS-"-O"} + LDSHARED=${LDSHARED-"cc -shared"} ;; + esac +fi + +SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} +SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} +SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} + +if test $shared -eq 1; then + echo Checking for shared library support... + # we must test in two steps (cc then ld), required at least on SunOS 4.x + if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" && + test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then + echo Building shared library $SHAREDLIBV with $CC. + elif test -z "$old_cc" -a -z "$old_cflags"; then + echo No shared library support. + shared=0; + else + echo Tested $CC -w -c $SFLAGS $test.c + $CC -w -c $SFLAGS $test.c + echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o + $LDSHARED $SFLAGS -o $test$shared_ext $test.o + echo 'No shared library support; try without defining CC and CFLAGS' + shared=0; + fi +fi +if test $shared -eq 0; then + LDSHARED="$CC" + ALL="static" + TEST="all teststatic" + SHAREDLIB="" + SHAREDLIBV="" + SHAREDLIBM="" + echo Building static library $STATICLIB version $VER with $CC. +else + ALL="static shared" + TEST="all teststatic testshared" +fi + +cat > $test.c <<EOF +#include <sys/types.h> +off64_t dummy = 0; +EOF +if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then + CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" + SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" + ALL="${ALL} all64" + TEST="${TEST} test64" + echo "Checking for off64_t... Yes." + echo "Checking for fseeko... Yes." +else + echo "Checking for off64_t... No." + cat > $test.c <<EOF +#include <stdio.h> +int main(void) { + fseeko(NULL, 0, 0); + return 0; +} +EOF + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for fseeko... Yes." + else + CFLAGS="${CFLAGS} -DNO_FSEEKO" + SFLAGS="${SFLAGS} -DNO_FSEEKO" + echo "Checking for fseeko... No." + fi +fi + +cp -p zconf.h.in zconf.h + +cat > $test.c <<EOF +#include <unistd.h> +int main() { return 0; } +EOF +if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h + mv zconf.temp.h zconf.h + echo "Checking for unistd.h... Yes." +else + echo "Checking for unistd.h... No." +fi + +if test $zprefix -eq 1; then + sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h + mv zconf.temp.h zconf.h + echo "Using z_ prefix on all symbols." +fi + +cat > $test.c <<EOF +#include <stdio.h> +#include <stdarg.h> +#include "zconf.h" + +int main() +{ +#ifndef STDC + choke me +#endif + + return 0; +} +EOF + +if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." + + cat > $test.c <<EOF +#include <stdio.h> +#include <stdarg.h> + +int mytest(const char *fmt, ...) +{ + char buf[20]; + va_list ap; + + va_start(ap, fmt); + vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + return 0; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for vsnprintf() in stdio.h... Yes." + + cat >$test.c <<EOF +#include <stdio.h> +#include <stdarg.h> + +int mytest(const char *fmt, ...) +{ + int n; + char buf[20]; + va_list ap; + + va_start(ap, fmt); + n = vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + return n; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of vsnprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_vsnprintf_void" + SFLAGS="$SFLAGS -DHAS_vsnprintf_void" + echo "Checking for return value of vsnprintf()... No." + echo " WARNING: apparently vsnprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + else + CFLAGS="$CFLAGS -DNO_vsnprintf" + SFLAGS="$SFLAGS -DNO_vsnprintf" + echo "Checking for vsnprintf() in stdio.h... No." + echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" + echo " can build but will be open to possible buffer-overflow security" + echo " vulnerabilities." + + cat >$test.c <<EOF +#include <stdio.h> +#include <stdarg.h> + +int mytest(const char *fmt, ...) +{ + int n; + char buf[20]; + va_list ap; + + va_start(ap, fmt); + n = vsprintf(buf, fmt, ap); + va_end(ap); + return n; +} + +int main() +{ + return (mytest("Hello%d\n", 1)); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of vsprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_vsprintf_void" + SFLAGS="$SFLAGS -DHAS_vsprintf_void" + echo "Checking for return value of vsprintf()... No." + echo " WARNING: apparently vsprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + fi +else + echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." + + cat >$test.c <<EOF +#include <stdio.h> + +int mytest() +{ + char buf[20]; + + snprintf(buf, sizeof(buf), "%s", "foo"); + return 0; +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then + echo "Checking for snprintf() in stdio.h... Yes." + + cat >$test.c <<EOF +#include <stdio.h> + +int mytest() +{ + char buf[20]; + + return snprintf(buf, sizeof(buf), "%s", "foo"); +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of snprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_snprintf_void" + SFLAGS="$SFLAGS -DHAS_snprintf_void" + echo "Checking for return value of snprintf()... No." + echo " WARNING: apparently snprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + else + CFLAGS="$CFLAGS -DNO_snprintf" + SFLAGS="$SFLAGS -DNO_snprintf" + echo "Checking for snprintf() in stdio.h... No." + echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" + echo " can build but will be open to possible buffer-overflow security" + echo " vulnerabilities." + + cat >$test.c <<EOF +#include <stdio.h> + +int mytest() +{ + char buf[20]; + + return sprintf(buf, "%s", "foo"); +} + +int main() +{ + return (mytest()); +} +EOF + + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for return value of sprintf()... Yes." + else + CFLAGS="$CFLAGS -DHAS_sprintf_void" + SFLAGS="$SFLAGS -DHAS_sprintf_void" + echo "Checking for return value of sprintf()... No." + echo " WARNING: apparently sprintf() does not return a value. zlib" + echo " can build but will be open to possible string-format security" + echo " vulnerabilities." + fi + fi +fi + +if test "$gcc" -eq 1; then + cat > $test.c <<EOF +#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) +# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) +#else +# define ZLIB_INTERNAL +#endif +int ZLIB_INTERNAL foo; +int main() +{ + return 0; +} +EOF + if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then + echo "Checking for attribute(visibility) support... Yes." + else + CFLAGS="$CFLAGS -DNO_VIZ" + SFLAGS="$SFLAGS -DNO_VIZ" + echo "Checking for attribute(visibility) support... No." + fi +fi + +CPP=${CPP-"$CC -E"} +case $CFLAGS in + *ASMV*) + if test "`$NM $test.o | grep _hello`" = ""; then + CPP="$CPP -DNO_UNDERLINE" + echo Checking for underline in external names... No. + else + echo Checking for underline in external names... Yes. + fi ;; +esac + +rm -f $test.[co] $test $test$shared_ext + +# udpate Makefile +sed < Makefile.in " +/^CC *=/s#=.*#=$CC# +/^CFLAGS *=/s#=.*#=$CFLAGS# +/^SFLAGS *=/s#=.*#=$SFLAGS# +/^LDFLAGS *=/s#=.*#=$LDFLAGS# +/^LDSHARED *=/s#=.*#=$LDSHARED# +/^CPP *=/s#=.*#=$CPP# +/^STATICLIB *=/s#=.*#=$STATICLIB# +/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# +/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# +/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# +/^AR *=/s#=.*#=$AR_RC# +/^RANLIB *=/s#=.*#=$RANLIB# +/^LDCONFIG *=/s#=.*#=$LDCONFIG# +/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# +/^EXE *=/s#=.*#=$EXE# +/^prefix *=/s#=.*#=$prefix# +/^exec_prefix *=/s#=.*#=$exec_prefix# +/^libdir *=/s#=.*#=$libdir# +/^sharedlibdir *=/s#=.*#=$sharedlibdir# +/^includedir *=/s#=.*#=$includedir# +/^mandir *=/s#=.*#=$mandir# +/^all: */s#:.*#: $ALL# +/^test: */s#:.*#: $TEST# +" > Makefile + +sed < zlib.pc.in " +/^CC *=/s#=.*#=$CC# +/^CFLAGS *=/s#=.*#=$CFLAGS# +/^CPP *=/s#=.*#=$CPP# +/^LDSHARED *=/s#=.*#=$LDSHARED# +/^STATICLIB *=/s#=.*#=$STATICLIB# +/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# +/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# +/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# +/^AR *=/s#=.*#=$AR_RC# +/^RANLIB *=/s#=.*#=$RANLIB# +/^EXE *=/s#=.*#=$EXE# +/^prefix *=/s#=.*#=$prefix# +/^exec_prefix *=/s#=.*#=$exec_prefix# +/^libdir *=/s#=.*#=$libdir# +/^sharedlibdir *=/s#=.*#=$sharedlibdir# +/^includedir *=/s#=.*#=$includedir# +/^mandir *=/s#=.*#=$mandir# +/^LDFLAGS *=/s#=.*#=$LDFLAGS# +" | sed -e " +s/\@VERSION\@/$VER/g; +" > zlib.pc diff --git a/3party/zlib/contrib/README.contrib b/3party/zlib/contrib/README.contrib new file mode 100644 index 0000000000..dd2285d960 --- /dev/null +++ b/3party/zlib/contrib/README.contrib @@ -0,0 +1,77 @@ +All files under this contrib directory are UNSUPPORTED. There were +provided by users of zlib and were not tested by the authors of zlib. +Use at your own risk. Please contact the authors of the contributions +for help about these, not the zlib authors. Thanks. + + +ada/ by Dmitriy Anisimkov <anisimkov@yahoo.com> + Support for Ada + See http://zlib-ada.sourceforge.net/ + +amd64/ by Mikhail Teterin <mi@ALDAN.algebra.com> + asm code for AMD64 + See patch at http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/96393 + +asm686/ by Brian Raiter <breadbox@muppetlabs.com> + asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax + See http://www.muppetlabs.com/~breadbox/software/assembly.html + +blast/ by Mark Adler <madler@alumni.caltech.edu> + Decompressor for output of PKWare Data Compression Library (DCL) + +delphi/ by Cosmin Truta <cosmint@cs.ubbcluj.ro> + Support for Delphi and C++ Builder + +dotzlib/ by Henrik Ravn <henrik@ravn.com> + Support for Microsoft .Net and Visual C++ .Net + +gcc_gvmat64/by Gilles Vollant <info@winimage.com> + GCC Version of x86 64-bit (AMD64 and Intel EM64t) code for x64 + assembler to replace longest_match() and inflate_fast() + +infback9/ by Mark Adler <madler@alumni.caltech.edu> + Unsupported diffs to infback to decode the deflate64 format + +inflate86/ by Chris Anderson <christop@charm.net> + Tuned x86 gcc asm code to replace inflate_fast() + +iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> + A C++ I/O streams interface to the zlib gz* functions + +iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> + Another C++ I/O streams interface + +iostream3/ by Ludwig Schwardt <schwardt@sun.ac.za> + and Kevin Ruland <kevin@rodin.wustl.edu> + Yet another C++ I/O streams interface + +masmx64/ by Gilles Vollant <info@winimage.com> + x86 64-bit (AMD64 and Intel EM64t) code for x64 assembler to + replace longest_match() and inflate_fast(), also masm x86 + 64-bits translation of Chris Anderson inflate_fast() + +masmx86/ by Gilles Vollant <info@winimage.com> + x86 asm code to replace longest_match() and inflate_fast(), + for Visual C++ and MASM (32 bits). + Based on Brian Raiter (asm686) and Chris Anderson (inflate86) + +minizip/ by Gilles Vollant <info@winimage.com> + Mini zip and unzip based on zlib + Includes Zip64 support by Mathias Svensson <mathias@result42.com> + See http://www.winimage.com/zLibDll/unzip.html + +pascal/ by Bob Dellaca <bobdl@xtra.co.nz> et al. + Support for Pascal + +puff/ by Mark Adler <madler@alumni.caltech.edu> + Small, low memory usage inflate. Also serves to provide an + unambiguous description of the deflate format. + +testzlib/ by Gilles Vollant <info@winimage.com> + Example of the use of zlib + +untgz/ by Pedro A. Aranda Gutierrez <paag@tid.es> + A very simple tar.gz file extractor using zlib + +vstudio/ by Gilles Vollant <info@winimage.com> + Building a minizip-enhanced zlib with Microsoft Visual Studio diff --git a/3party/zlib/contrib/ada/buffer_demo.adb b/3party/zlib/contrib/ada/buffer_demo.adb new file mode 100644 index 0000000000..46b8638107 --- /dev/null +++ b/3party/zlib/contrib/ada/buffer_demo.adb @@ -0,0 +1,106 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- +-- +-- $Id: buffer_demo.adb,v 1.3 2004/09/06 06:55:35 vagul Exp $ + +-- This demo program provided by Dr Steve Sangwine <sjs@essex.ac.uk> +-- +-- Demonstration of a problem with Zlib-Ada (already fixed) when a buffer +-- of exactly the correct size is used for decompressed data, and the last +-- few bytes passed in to Zlib are checksum bytes. + +-- This program compresses a string of text, and then decompresses the +-- compressed text into a buffer of the same size as the original text. + +with Ada.Streams; use Ada.Streams; +with Ada.Text_IO; + +with ZLib; use ZLib; + +procedure Buffer_Demo is + EOL : Character renames ASCII.LF; + Text : constant String + := "Four score and seven years ago our fathers brought forth," & EOL & + "upon this continent, a new nation, conceived in liberty," & EOL & + "and dedicated to the proposition that `all men are created equal'."; + + Source : Stream_Element_Array (1 .. Text'Length); + for Source'Address use Text'Address; + +begin + Ada.Text_IO.Put (Text); + Ada.Text_IO.New_Line; + Ada.Text_IO.Put_Line + ("Uncompressed size : " & Positive'Image (Text'Length) & " bytes"); + + declare + Compressed_Data : Stream_Element_Array (1 .. Text'Length); + L : Stream_Element_Offset; + begin + Compress : declare + Compressor : Filter_Type; + I : Stream_Element_Offset; + begin + Deflate_Init (Compressor); + + -- Compress the whole of T at once. + + Translate (Compressor, Source, I, Compressed_Data, L, Finish); + pragma Assert (I = Source'Last); + + Close (Compressor); + + Ada.Text_IO.Put_Line + ("Compressed size : " + & Stream_Element_Offset'Image (L) & " bytes"); + end Compress; + + -- Now we decompress the data, passing short blocks of data to Zlib + -- (because this demonstrates the problem - the last block passed will + -- contain checksum information and there will be no output, only a + -- check inside Zlib that the checksum is correct). + + Decompress : declare + Decompressor : Filter_Type; + + Uncompressed_Data : Stream_Element_Array (1 .. Text'Length); + + Block_Size : constant := 4; + -- This makes sure that the last block contains + -- only Adler checksum data. + + P : Stream_Element_Offset := Compressed_Data'First - 1; + O : Stream_Element_Offset; + begin + Inflate_Init (Decompressor); + + loop + Translate + (Decompressor, + Compressed_Data + (P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)), + P, + Uncompressed_Data + (Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last), + O, + No_Flush); + + Ada.Text_IO.Put_Line + ("Total in : " & Count'Image (Total_In (Decompressor)) & + ", out : " & Count'Image (Total_Out (Decompressor))); + + exit when P = L; + end loop; + + Ada.Text_IO.New_Line; + Ada.Text_IO.Put_Line + ("Decompressed text matches original text : " + & Boolean'Image (Uncompressed_Data = Source)); + end Decompress; + end; +end Buffer_Demo; diff --git a/3party/zlib/contrib/ada/mtest.adb b/3party/zlib/contrib/ada/mtest.adb new file mode 100644 index 0000000000..c4dfd080f0 --- /dev/null +++ b/3party/zlib/contrib/ada/mtest.adb @@ -0,0 +1,156 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- +-- Continuous test for ZLib multithreading. If the test would fail +-- we should provide thread safe allocation routines for the Z_Stream. +-- +-- $Id: mtest.adb,v 1.4 2004/07/23 07:49:54 vagul Exp $ + +with ZLib; +with Ada.Streams; +with Ada.Numerics.Discrete_Random; +with Ada.Text_IO; +with Ada.Exceptions; +with Ada.Task_Identification; + +procedure MTest is + use Ada.Streams; + use ZLib; + + Stop : Boolean := False; + + pragma Atomic (Stop); + + subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is + new Ada.Numerics.Discrete_Random (Visible_Symbols); + + task type Test_Task; + + task body Test_Task is + Buffer : Stream_Element_Array (1 .. 100_000); + Gen : Random_Elements.Generator; + + Buffer_First : Stream_Element_Offset; + Compare_First : Stream_Element_Offset; + + Deflate : Filter_Type; + Inflate : Filter_Type; + + procedure Further (Item : in Stream_Element_Array); + + procedure Read_Buffer + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + + ------------- + -- Further -- + ------------- + + procedure Further (Item : in Stream_Element_Array) is + + procedure Compare (Item : in Stream_Element_Array); + + ------------- + -- Compare -- + ------------- + + procedure Compare (Item : in Stream_Element_Array) is + Next_First : Stream_Element_Offset := Compare_First + Item'Length; + begin + if Buffer (Compare_First .. Next_First - 1) /= Item then + raise Program_Error; + end if; + + Compare_First := Next_First; + end Compare; + + procedure Compare_Write is new ZLib.Write (Write => Compare); + begin + Compare_Write (Inflate, Item, No_Flush); + end Further; + + ----------------- + -- Read_Buffer -- + ----------------- + + procedure Read_Buffer + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset) + is + Buff_Diff : Stream_Element_Offset := Buffer'Last - Buffer_First; + Next_First : Stream_Element_Offset; + begin + if Item'Length <= Buff_Diff then + Last := Item'Last; + + Next_First := Buffer_First + Item'Length; + + Item := Buffer (Buffer_First .. Next_First - 1); + + Buffer_First := Next_First; + else + Last := Item'First + Buff_Diff; + Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last); + Buffer_First := Buffer'Last + 1; + end if; + end Read_Buffer; + + procedure Translate is new Generic_Translate + (Data_In => Read_Buffer, + Data_Out => Further); + + begin + Random_Elements.Reset (Gen); + + Buffer := (others => 20); + + Main : loop + for J in Buffer'Range loop + Buffer (J) := Random_Elements.Random (Gen); + + Deflate_Init (Deflate); + Inflate_Init (Inflate); + + Buffer_First := Buffer'First; + Compare_First := Buffer'First; + + Translate (Deflate); + + if Compare_First /= Buffer'Last + 1 then + raise Program_Error; + end if; + + Ada.Text_IO.Put_Line + (Ada.Task_Identification.Image + (Ada.Task_Identification.Current_Task) + & Stream_Element_Offset'Image (J) + & ZLib.Count'Image (Total_Out (Deflate))); + + Close (Deflate); + Close (Inflate); + + exit Main when Stop; + end loop; + end loop Main; + exception + when E : others => + Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E)); + Stop := True; + end Test_Task; + + Test : array (1 .. 4) of Test_Task; + + pragma Unreferenced (Test); + + Dummy : Character; + +begin + Ada.Text_IO.Get_Immediate (Dummy); + Stop := True; +end MTest; diff --git a/3party/zlib/contrib/ada/read.adb b/3party/zlib/contrib/ada/read.adb new file mode 100644 index 0000000000..1f2efbfeb8 --- /dev/null +++ b/3party/zlib/contrib/ada/read.adb @@ -0,0 +1,156 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: read.adb,v 1.8 2004/05/31 10:53:40 vagul Exp $ + +-- Test/demo program for the generic read interface. + +with Ada.Numerics.Discrete_Random; +with Ada.Streams; +with Ada.Text_IO; + +with ZLib; + +procedure Read is + + use Ada.Streams; + + ------------------------------------ + -- Test configuration parameters -- + ------------------------------------ + + File_Size : Stream_Element_Offset := 100_000; + + Continuous : constant Boolean := False; + -- If this constant is True, the test would be repeated again and again, + -- with increment File_Size for every iteration. + + Header : constant ZLib.Header_Type := ZLib.Default; + -- Do not use Header other than Default in ZLib versions 1.1.4 and older. + + Init_Random : constant := 8; + -- We are using the same random sequence, in case of we catch bug, + -- so we would be able to reproduce it. + + -- End -- + + Pack_Size : Stream_Element_Offset; + Offset : Stream_Element_Offset; + + Filter : ZLib.Filter_Type; + + subtype Visible_Symbols + is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is new + Ada.Numerics.Discrete_Random (Visible_Symbols); + + Gen : Random_Elements.Generator; + Period : constant Stream_Element_Offset := 200; + -- Period constant variable for random generator not to be very random. + -- Bigger period, harder random. + + Read_Buffer : Stream_Element_Array (1 .. 2048); + Read_First : Stream_Element_Offset; + Read_Last : Stream_Element_Offset; + + procedure Reset; + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + -- this procedure is for generic instantiation of + -- ZLib.Read + -- reading data from the File_In. + + procedure Read is new ZLib.Read + (Read, + Read_Buffer, + Rest_First => Read_First, + Rest_Last => Read_Last); + + ---------- + -- Read -- + ---------- + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Last := Stream_Element_Offset'Min + (Item'Last, + Item'First + File_Size - Offset); + + for J in Item'First .. Last loop + if J < Item'First + Period then + Item (J) := Random_Elements.Random (Gen); + else + Item (J) := Item (J - Period); + end if; + + Offset := Offset + 1; + end loop; + end Read; + + ----------- + -- Reset -- + ----------- + + procedure Reset is + begin + Random_Elements.Reset (Gen, Init_Random); + Pack_Size := 0; + Offset := 1; + Read_First := Read_Buffer'Last + 1; + Read_Last := Read_Buffer'Last; + end Reset; + +begin + Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version); + + loop + for Level in ZLib.Compression_Level'Range loop + + Ada.Text_IO.Put ("Level =" + & ZLib.Compression_Level'Image (Level)); + + -- Deflate using generic instantiation. + + ZLib.Deflate_Init + (Filter, + Level, + Header => Header); + + Reset; + + Ada.Text_IO.Put + (Stream_Element_Offset'Image (File_Size) & " ->"); + + loop + declare + Buffer : Stream_Element_Array (1 .. 1024); + Last : Stream_Element_Offset; + begin + Read (Filter, Buffer, Last); + + Pack_Size := Pack_Size + Last - Buffer'First + 1; + + exit when Last < Buffer'Last; + end; + end loop; + + Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size)); + + ZLib.Close (Filter); + end loop; + + exit when not Continuous; + + File_Size := File_Size + 1; + end loop; +end Read; diff --git a/3party/zlib/contrib/ada/readme.txt b/3party/zlib/contrib/ada/readme.txt new file mode 100644 index 0000000000..ce4d2cadf0 --- /dev/null +++ b/3party/zlib/contrib/ada/readme.txt @@ -0,0 +1,65 @@ + ZLib for Ada thick binding (ZLib.Ada) + Release 1.3 + +ZLib.Ada is a thick binding interface to the popular ZLib data +compression library, available at http://www.gzip.org/zlib/. +It provides Ada-style access to the ZLib C library. + + + Here are the main changes since ZLib.Ada 1.2: + +- Attension: ZLib.Read generic routine have a initialization requirement + for Read_Last parameter now. It is a bit incompartible with previous version, + but extends functionality, we could use new parameters Allow_Read_Some and + Flush now. + +- Added Is_Open routines to ZLib and ZLib.Streams packages. + +- Add pragma Assert to check Stream_Element is 8 bit. + +- Fix extraction to buffer with exact known decompressed size. Error reported by + Steve Sangwine. + +- Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits + computers. Patch provided by Pascal Obry. + +- Add Status_Error exception definition. + +- Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit. + + + How to build ZLib.Ada under GNAT + +You should have the ZLib library already build on your computer, before +building ZLib.Ada. Make the directory of ZLib.Ada sources current and +issue the command: + + gnatmake test -largs -L<directory where libz.a is> -lz + +Or use the GNAT project file build for GNAT 3.15 or later: + + gnatmake -Pzlib.gpr -L<directory where libz.a is> + + + How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2 + +1. Make a project with all *.ads and *.adb files from the distribution. +2. Build the libz.a library from the ZLib C sources. +3. Rename libz.a to z.lib. +4. Add the library z.lib to the project. +5. Add the libc.lib library from the ObjectAda distribution to the project. +6. Build the executable using test.adb as a main procedure. + + + How to use ZLib.Ada + +The source files test.adb and read.adb are small demo programs that show +the main functionality of ZLib.Ada. + +The routines from the package specifications are commented. + + +Homepage: http://zlib-ada.sourceforge.net/ +Author: Dmitriy Anisimkov <anisimkov@yahoo.com> + +Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk> diff --git a/3party/zlib/contrib/ada/test.adb b/3party/zlib/contrib/ada/test.adb new file mode 100644 index 0000000000..90773acfa1 --- /dev/null +++ b/3party/zlib/contrib/ada/test.adb @@ -0,0 +1,463 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: test.adb,v 1.17 2003/08/12 12:13:30 vagul Exp $ + +-- The program has a few aims. +-- 1. Test ZLib.Ada95 thick binding functionality. +-- 2. Show the example of use main functionality of the ZLib.Ada95 binding. +-- 3. Build this program automatically compile all ZLib.Ada95 packages under +-- GNAT Ada95 compiler. + +with ZLib.Streams; +with Ada.Streams.Stream_IO; +with Ada.Numerics.Discrete_Random; + +with Ada.Text_IO; + +with Ada.Calendar; + +procedure Test is + + use Ada.Streams; + use Stream_IO; + + ------------------------------------ + -- Test configuration parameters -- + ------------------------------------ + + File_Size : Count := 100_000; + Continuous : constant Boolean := False; + + Header : constant ZLib.Header_Type := ZLib.Default; + -- ZLib.None; + -- ZLib.Auto; + -- ZLib.GZip; + -- Do not use Header other then Default in ZLib versions 1.1.4 + -- and older. + + Strategy : constant ZLib.Strategy_Type := ZLib.Default_Strategy; + Init_Random : constant := 10; + + -- End -- + + In_File_Name : constant String := "testzlib.in"; + -- Name of the input file + + Z_File_Name : constant String := "testzlib.zlb"; + -- Name of the compressed file. + + Out_File_Name : constant String := "testzlib.out"; + -- Name of the decompressed file. + + File_In : File_Type; + File_Out : File_Type; + File_Back : File_Type; + File_Z : ZLib.Streams.Stream_Type; + + Filter : ZLib.Filter_Type; + + Time_Stamp : Ada.Calendar.Time; + + procedure Generate_File; + -- Generate file of spetsified size with some random data. + -- The random data is repeatable, for the good compression. + + procedure Compare_Streams + (Left, Right : in out Root_Stream_Type'Class); + -- The procedure compearing data in 2 streams. + -- It is for compare data before and after compression/decompression. + + procedure Compare_Files (Left, Right : String); + -- Compare files. Based on the Compare_Streams. + + procedure Copy_Streams + (Source, Target : in out Root_Stream_Type'Class; + Buffer_Size : in Stream_Element_Offset := 1024); + -- Copying data from one stream to another. It is for test stream + -- interface of the library. + + procedure Data_In + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + -- this procedure is for generic instantiation of + -- ZLib.Generic_Translate. + -- reading data from the File_In. + + procedure Data_Out (Item : in Stream_Element_Array); + -- this procedure is for generic instantiation of + -- ZLib.Generic_Translate. + -- writing data to the File_Out. + + procedure Stamp; + -- Store the timestamp to the local variable. + + procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count); + -- Print the time statistic with the message. + + procedure Translate is new ZLib.Generic_Translate + (Data_In => Data_In, + Data_Out => Data_Out); + -- This procedure is moving data from File_In to File_Out + -- with compression or decompression, depend on initialization of + -- Filter parameter. + + ------------------- + -- Compare_Files -- + ------------------- + + procedure Compare_Files (Left, Right : String) is + Left_File, Right_File : File_Type; + begin + Open (Left_File, In_File, Left); + Open (Right_File, In_File, Right); + Compare_Streams (Stream (Left_File).all, Stream (Right_File).all); + Close (Left_File); + Close (Right_File); + end Compare_Files; + + --------------------- + -- Compare_Streams -- + --------------------- + + procedure Compare_Streams + (Left, Right : in out Ada.Streams.Root_Stream_Type'Class) + is + Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#); + Left_Last, Right_Last : Stream_Element_Offset; + begin + loop + Read (Left, Left_Buffer, Left_Last); + Read (Right, Right_Buffer, Right_Last); + + if Left_Last /= Right_Last then + Ada.Text_IO.Put_Line ("Compare error :" + & Stream_Element_Offset'Image (Left_Last) + & " /= " + & Stream_Element_Offset'Image (Right_Last)); + + raise Constraint_Error; + + elsif Left_Buffer (0 .. Left_Last) + /= Right_Buffer (0 .. Right_Last) + then + Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal."); + raise Constraint_Error; + + end if; + + exit when Left_Last < Left_Buffer'Last; + end loop; + end Compare_Streams; + + ------------------ + -- Copy_Streams -- + ------------------ + + procedure Copy_Streams + (Source, Target : in out Ada.Streams.Root_Stream_Type'Class; + Buffer_Size : in Stream_Element_Offset := 1024) + is + Buffer : Stream_Element_Array (1 .. Buffer_Size); + Last : Stream_Element_Offset; + begin + loop + Read (Source, Buffer, Last); + Write (Target, Buffer (1 .. Last)); + + exit when Last < Buffer'Last; + end loop; + end Copy_Streams; + + ------------- + -- Data_In -- + ------------- + + procedure Data_In + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Read (File_In, Item, Last); + end Data_In; + + -------------- + -- Data_Out -- + -------------- + + procedure Data_Out (Item : in Stream_Element_Array) is + begin + Write (File_Out, Item); + end Data_Out; + + ------------------- + -- Generate_File -- + ------------------- + + procedure Generate_File is + subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#; + + package Random_Elements is + new Ada.Numerics.Discrete_Random (Visible_Symbols); + + Gen : Random_Elements.Generator; + Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10; + + Buffer_Count : constant Count := File_Size / Buffer'Length; + -- Number of same buffers in the packet. + + Density : constant Count := 30; -- from 0 to Buffer'Length - 2; + + procedure Fill_Buffer (J, D : in Count); + -- Change the part of the buffer. + + ----------------- + -- Fill_Buffer -- + ----------------- + + procedure Fill_Buffer (J, D : in Count) is + begin + for K in 0 .. D loop + Buffer + (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1)) + := Random_Elements.Random (Gen); + + end loop; + end Fill_Buffer; + + begin + Random_Elements.Reset (Gen, Init_Random); + + Create (File_In, Out_File, In_File_Name); + + Fill_Buffer (1, Buffer'Length - 2); + + for J in 1 .. Buffer_Count loop + Write (File_In, Buffer); + + Fill_Buffer (J, Density); + end loop; + + -- fill remain size. + + Write + (File_In, + Buffer + (1 .. Stream_Element_Offset + (File_Size - Buffer'Length * Buffer_Count))); + + Flush (File_In); + Close (File_In); + end Generate_File; + + --------------------- + -- Print_Statistic -- + --------------------- + + procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is + use Ada.Calendar; + use Ada.Text_IO; + + package Count_IO is new Integer_IO (ZLib.Count); + + Curr_Dur : Duration := Clock - Time_Stamp; + begin + Put (Msg); + + Set_Col (20); + Ada.Text_IO.Put ("size ="); + + Count_IO.Put + (Data_Size, + Width => Stream_IO.Count'Image (File_Size)'Length); + + Put_Line (" duration =" & Duration'Image (Curr_Dur)); + end Print_Statistic; + + ----------- + -- Stamp -- + ----------- + + procedure Stamp is + begin + Time_Stamp := Ada.Calendar.Clock; + end Stamp; + +begin + Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version); + + loop + Generate_File; + + for Level in ZLib.Compression_Level'Range loop + + Ada.Text_IO.Put_Line ("Level =" + & ZLib.Compression_Level'Image (Level)); + + -- Test generic interface. + Open (File_In, In_File, In_File_Name); + Create (File_Out, Out_File, Z_File_Name); + + Stamp; + + -- Deflate using generic instantiation. + + ZLib.Deflate_Init + (Filter => Filter, + Level => Level, + Strategy => Strategy, + Header => Header); + + Translate (Filter); + Print_Statistic ("Generic compress", ZLib.Total_Out (Filter)); + ZLib.Close (Filter); + + Close (File_In); + Close (File_Out); + + Open (File_In, In_File, Z_File_Name); + Create (File_Out, Out_File, Out_File_Name); + + Stamp; + + -- Inflate using generic instantiation. + + ZLib.Inflate_Init (Filter, Header => Header); + + Translate (Filter); + Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter)); + + ZLib.Close (Filter); + + Close (File_In); + Close (File_Out); + + Compare_Files (In_File_Name, Out_File_Name); + + -- Test stream interface. + + -- Compress to the back stream. + + Open (File_In, In_File, In_File_Name); + Create (File_Back, Out_File, Z_File_Name); + + Stamp; + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.Out_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => True, + Level => Level, + Strategy => Strategy, + Header => Header); + + Copy_Streams + (Source => Stream (File_In).all, + Target => File_Z); + + -- Flushing internal buffers to the back stream. + + ZLib.Streams.Flush (File_Z, ZLib.Finish); + + Print_Statistic ("Write compress", + ZLib.Streams.Write_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + + Close (File_In); + Close (File_Back); + + -- Compare reading from original file and from + -- decompression stream. + + Open (File_In, In_File, In_File_Name); + Open (File_Back, In_File, Z_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.In_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => True, + Header => Header); + + Stamp; + Compare_Streams (Stream (File_In).all, File_Z); + + Print_Statistic ("Read decompress", + ZLib.Streams.Read_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + Close (File_In); + Close (File_Back); + + -- Compress by reading from compression stream. + + Open (File_Back, In_File, In_File_Name); + Create (File_Out, Out_File, Z_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.In_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => False, + Level => Level, + Strategy => Strategy, + Header => Header); + + Stamp; + Copy_Streams + (Source => File_Z, + Target => Stream (File_Out).all); + + Print_Statistic ("Read compress", + ZLib.Streams.Read_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + + Close (File_Out); + Close (File_Back); + + -- Decompress to decompression stream. + + Open (File_In, In_File, Z_File_Name); + Create (File_Back, Out_File, Out_File_Name); + + ZLib.Streams.Create + (Stream => File_Z, + Mode => ZLib.Streams.Out_Stream, + Back => ZLib.Streams.Stream_Access + (Stream (File_Back)), + Back_Compressed => False, + Header => Header); + + Stamp; + + Copy_Streams + (Source => Stream (File_In).all, + Target => File_Z); + + Print_Statistic ("Write decompress", + ZLib.Streams.Write_Total_Out (File_Z)); + + ZLib.Streams.Close (File_Z); + Close (File_In); + Close (File_Back); + + Compare_Files (In_File_Name, Out_File_Name); + end loop; + + Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok."); + + exit when not Continuous; + + File_Size := File_Size + 1; + end loop; +end Test; diff --git a/3party/zlib/contrib/ada/zlib-streams.adb b/3party/zlib/contrib/ada/zlib-streams.adb new file mode 100644 index 0000000000..b6497bae28 --- /dev/null +++ b/3party/zlib/contrib/ada/zlib-streams.adb @@ -0,0 +1,225 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib-streams.adb,v 1.10 2004/05/31 10:53:40 vagul Exp $ + +with Ada.Unchecked_Deallocation; + +package body ZLib.Streams is + + ----------- + -- Close -- + ----------- + + procedure Close (Stream : in out Stream_Type) is + procedure Free is new Ada.Unchecked_Deallocation + (Stream_Element_Array, Buffer_Access); + begin + if Stream.Mode = Out_Stream or Stream.Mode = Duplex then + -- We should flush the data written by the writer. + + Flush (Stream, Finish); + + Close (Stream.Writer); + end if; + + if Stream.Mode = In_Stream or Stream.Mode = Duplex then + Close (Stream.Reader); + Free (Stream.Buffer); + end if; + end Close; + + ------------ + -- Create -- + ------------ + + procedure Create + (Stream : out Stream_Type; + Mode : in Stream_Mode; + Back : in Stream_Access; + Back_Compressed : in Boolean; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Header : in Header_Type := Default; + Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size) + is + + subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size); + + procedure Init_Filter + (Filter : in out Filter_Type; + Compress : in Boolean); + + ----------------- + -- Init_Filter -- + ----------------- + + procedure Init_Filter + (Filter : in out Filter_Type; + Compress : in Boolean) is + begin + if Compress then + Deflate_Init + (Filter, Level, Strategy, Header => Header); + else + Inflate_Init (Filter, Header => Header); + end if; + end Init_Filter; + + begin + Stream.Back := Back; + Stream.Mode := Mode; + + if Mode = Out_Stream or Mode = Duplex then + Init_Filter (Stream.Writer, Back_Compressed); + Stream.Buffer_Size := Write_Buffer_Size; + else + Stream.Buffer_Size := 0; + end if; + + if Mode = In_Stream or Mode = Duplex then + Init_Filter (Stream.Reader, not Back_Compressed); + + Stream.Buffer := new Buffer_Subtype; + Stream.Rest_First := Stream.Buffer'Last + 1; + Stream.Rest_Last := Stream.Buffer'Last; + end if; + end Create; + + ----------- + -- Flush -- + ----------- + + procedure Flush + (Stream : in out Stream_Type; + Mode : in Flush_Mode := Sync_Flush) + is + Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size); + Last : Stream_Element_Offset; + begin + loop + Flush (Stream.Writer, Buffer, Last, Mode); + + Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last)); + + exit when Last < Buffer'Last; + end loop; + end Flush; + + ------------- + -- Is_Open -- + ------------- + + function Is_Open (Stream : Stream_Type) return Boolean is + begin + return Is_Open (Stream.Reader) or else Is_Open (Stream.Writer); + end Is_Open; + + ---------- + -- Read -- + ---------- + + procedure Read + (Stream : in out Stream_Type; + Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) + is + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset); + + ---------- + -- Read -- + ---------- + + procedure Read + (Item : out Stream_Element_Array; + Last : out Stream_Element_Offset) is + begin + Ada.Streams.Read (Stream.Back.all, Item, Last); + end Read; + + procedure Read is new ZLib.Read + (Read => Read, + Buffer => Stream.Buffer.all, + Rest_First => Stream.Rest_First, + Rest_Last => Stream.Rest_Last); + + begin + Read (Stream.Reader, Item, Last); + end Read; + + ------------------- + -- Read_Total_In -- + ------------------- + + function Read_Total_In (Stream : in Stream_Type) return Count is + begin + return Total_In (Stream.Reader); + end Read_Total_In; + + -------------------- + -- Read_Total_Out -- + -------------------- + + function Read_Total_Out (Stream : in Stream_Type) return Count is + begin + return Total_Out (Stream.Reader); + end Read_Total_Out; + + ----------- + -- Write -- + ----------- + + procedure Write + (Stream : in out Stream_Type; + Item : in Stream_Element_Array) + is + + procedure Write (Item : in Stream_Element_Array); + + ----------- + -- Write -- + ----------- + + procedure Write (Item : in Stream_Element_Array) is + begin + Ada.Streams.Write (Stream.Back.all, Item); + end Write; + + procedure Write is new ZLib.Write + (Write => Write, + Buffer_Size => Stream.Buffer_Size); + + begin + Write (Stream.Writer, Item, No_Flush); + end Write; + + -------------------- + -- Write_Total_In -- + -------------------- + + function Write_Total_In (Stream : in Stream_Type) return Count is + begin + return Total_In (Stream.Writer); + end Write_Total_In; + + --------------------- + -- Write_Total_Out -- + --------------------- + + function Write_Total_Out (Stream : in Stream_Type) return Count is + begin + return Total_Out (Stream.Writer); + end Write_Total_Out; + +end ZLib.Streams; diff --git a/3party/zlib/contrib/ada/zlib-streams.ads b/3party/zlib/contrib/ada/zlib-streams.ads new file mode 100644 index 0000000000..f0193c6bae --- /dev/null +++ b/3party/zlib/contrib/ada/zlib-streams.ads @@ -0,0 +1,114 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib-streams.ads,v 1.12 2004/05/31 10:53:40 vagul Exp $ + +package ZLib.Streams is + + type Stream_Mode is (In_Stream, Out_Stream, Duplex); + + type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class; + + type Stream_Type is + new Ada.Streams.Root_Stream_Type with private; + + procedure Read + (Stream : in out Stream_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + + procedure Write + (Stream : in out Stream_Type; + Item : in Ada.Streams.Stream_Element_Array); + + procedure Flush + (Stream : in out Stream_Type; + Mode : in Flush_Mode := Sync_Flush); + -- Flush the written data to the back stream, + -- all data placed to the compressor is flushing to the Back stream. + -- Should not be used untill necessary, becouse it is decreasing + -- compression. + + function Read_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_In); + -- Return total number of bytes read from back stream so far. + + function Read_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_Out); + -- Return total number of bytes read so far. + + function Write_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_In); + -- Return total number of bytes written so far. + + function Write_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_Out); + -- Return total number of bytes written to the back stream. + + procedure Create + (Stream : out Stream_Type; + Mode : in Stream_Mode; + Back : in Stream_Access; + Back_Compressed : in Boolean; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Header : in Header_Type := Default; + Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size); + -- Create the Comression/Decompression stream. + -- If mode is In_Stream then Write operation is disabled. + -- If mode is Out_Stream then Read operation is disabled. + + -- If Back_Compressed is true then + -- Data written to the Stream is compressing to the Back stream + -- and data read from the Stream is decompressed data from the Back stream. + + -- If Back_Compressed is false then + -- Data written to the Stream is decompressing to the Back stream + -- and data read from the Stream is compressed data from the Back stream. + + -- !!! When the Need_Header is False ZLib-Ada is using undocumented + -- ZLib 1.1.4 functionality to do not create/wait for ZLib headers. + + function Is_Open (Stream : Stream_Type) return Boolean; + + procedure Close (Stream : in out Stream_Type); + +private + + use Ada.Streams; + + type Buffer_Access is access all Stream_Element_Array; + + type Stream_Type + is new Root_Stream_Type with + record + Mode : Stream_Mode; + + Buffer : Buffer_Access; + Rest_First : Stream_Element_Offset; + Rest_Last : Stream_Element_Offset; + -- Buffer for Read operation. + -- We need to have this buffer in the record + -- becouse not all read data from back stream + -- could be processed during the read operation. + + Buffer_Size : Stream_Element_Offset; + -- Buffer size for write operation. + -- We do not need to have this buffer + -- in the record becouse all data could be + -- processed in the write operation. + + Back : Stream_Access; + Reader : Filter_Type; + Writer : Filter_Type; + end record; + +end ZLib.Streams; diff --git a/3party/zlib/contrib/ada/zlib-thin.adb b/3party/zlib/contrib/ada/zlib-thin.adb new file mode 100644 index 0000000000..0ca4a71204 --- /dev/null +++ b/3party/zlib/contrib/ada/zlib-thin.adb @@ -0,0 +1,141 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $ + +package body ZLib.Thin is + + ZLIB_VERSION : constant Chars_Ptr := zlibVersion; + + Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit; + + -------------- + -- Avail_In -- + -------------- + + function Avail_In (Strm : in Z_Stream) return UInt is + begin + return Strm.Avail_In; + end Avail_In; + + --------------- + -- Avail_Out -- + --------------- + + function Avail_Out (Strm : in Z_Stream) return UInt is + begin + return Strm.Avail_Out; + end Avail_Out; + + ------------------ + -- Deflate_Init -- + ------------------ + + function Deflate_Init + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int) + return Int is + begin + return deflateInit2 + (strm, + level, + method, + windowBits, + memLevel, + strategy, + ZLIB_VERSION, + Z_Stream_Size); + end Deflate_Init; + + ------------------ + -- Inflate_Init -- + ------------------ + + function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is + begin + return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size); + end Inflate_Init; + + ------------------------ + -- Last_Error_Message -- + ------------------------ + + function Last_Error_Message (Strm : in Z_Stream) return String is + use Interfaces.C.Strings; + begin + if Strm.msg = Null_Ptr then + return ""; + else + return Value (Strm.msg); + end if; + end Last_Error_Message; + + ------------ + -- Set_In -- + ------------ + + procedure Set_In + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt) is + begin + Strm.Next_In := Buffer; + Strm.Avail_In := Size; + end Set_In; + + ------------------ + -- Set_Mem_Func -- + ------------------ + + procedure Set_Mem_Func + (Strm : in out Z_Stream; + Opaque : in Voidp; + Alloc : in alloc_func; + Free : in free_func) is + begin + Strm.opaque := Opaque; + Strm.zalloc := Alloc; + Strm.zfree := Free; + end Set_Mem_Func; + + ------------- + -- Set_Out -- + ------------- + + procedure Set_Out + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt) is + begin + Strm.Next_Out := Buffer; + Strm.Avail_Out := Size; + end Set_Out; + + -------------- + -- Total_In -- + -------------- + + function Total_In (Strm : in Z_Stream) return ULong is + begin + return Strm.Total_In; + end Total_In; + + --------------- + -- Total_Out -- + --------------- + + function Total_Out (Strm : in Z_Stream) return ULong is + begin + return Strm.Total_Out; + end Total_Out; + +end ZLib.Thin; diff --git a/3party/zlib/contrib/ada/zlib-thin.ads b/3party/zlib/contrib/ada/zlib-thin.ads new file mode 100644 index 0000000000..d4407eb800 --- /dev/null +++ b/3party/zlib/contrib/ada/zlib-thin.ads @@ -0,0 +1,450 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $ + +with Interfaces.C.Strings; + +with System; + +private package ZLib.Thin is + + -- From zconf.h + + MAX_MEM_LEVEL : constant := 9; -- zconf.h:105 + -- zconf.h:105 + MAX_WBITS : constant := 15; -- zconf.h:115 + -- 32K LZ77 window + -- zconf.h:115 + SEEK_SET : constant := 8#0000#; -- zconf.h:244 + -- Seek from beginning of file. + -- zconf.h:244 + SEEK_CUR : constant := 1; -- zconf.h:245 + -- Seek from current position. + -- zconf.h:245 + SEEK_END : constant := 2; -- zconf.h:246 + -- Set file pointer to EOF plus "offset" + -- zconf.h:246 + + type Byte is new Interfaces.C.unsigned_char; -- 8 bits + -- zconf.h:214 + type UInt is new Interfaces.C.unsigned; -- 16 bits or more + -- zconf.h:216 + type Int is new Interfaces.C.int; + + type ULong is new Interfaces.C.unsigned_long; -- 32 bits or more + -- zconf.h:217 + subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr; + + type ULong_Access is access ULong; + type Int_Access is access Int; + + subtype Voidp is System.Address; -- zconf.h:232 + + subtype Byte_Access is Voidp; + + Nul : constant Voidp := System.Null_Address; + -- end from zconf + + Z_NO_FLUSH : constant := 8#0000#; -- zlib.h:125 + -- zlib.h:125 + Z_PARTIAL_FLUSH : constant := 1; -- zlib.h:126 + -- will be removed, use + -- Z_SYNC_FLUSH instead + -- zlib.h:126 + Z_SYNC_FLUSH : constant := 2; -- zlib.h:127 + -- zlib.h:127 + Z_FULL_FLUSH : constant := 3; -- zlib.h:128 + -- zlib.h:128 + Z_FINISH : constant := 4; -- zlib.h:129 + -- zlib.h:129 + Z_OK : constant := 8#0000#; -- zlib.h:132 + -- zlib.h:132 + Z_STREAM_END : constant := 1; -- zlib.h:133 + -- zlib.h:133 + Z_NEED_DICT : constant := 2; -- zlib.h:134 + -- zlib.h:134 + Z_ERRNO : constant := -1; -- zlib.h:135 + -- zlib.h:135 + Z_STREAM_ERROR : constant := -2; -- zlib.h:136 + -- zlib.h:136 + Z_DATA_ERROR : constant := -3; -- zlib.h:137 + -- zlib.h:137 + Z_MEM_ERROR : constant := -4; -- zlib.h:138 + -- zlib.h:138 + Z_BUF_ERROR : constant := -5; -- zlib.h:139 + -- zlib.h:139 + Z_VERSION_ERROR : constant := -6; -- zlib.h:140 + -- zlib.h:140 + Z_NO_COMPRESSION : constant := 8#0000#; -- zlib.h:145 + -- zlib.h:145 + Z_BEST_SPEED : constant := 1; -- zlib.h:146 + -- zlib.h:146 + Z_BEST_COMPRESSION : constant := 9; -- zlib.h:147 + -- zlib.h:147 + Z_DEFAULT_COMPRESSION : constant := -1; -- zlib.h:148 + -- zlib.h:148 + Z_FILTERED : constant := 1; -- zlib.h:151 + -- zlib.h:151 + Z_HUFFMAN_ONLY : constant := 2; -- zlib.h:152 + -- zlib.h:152 + Z_DEFAULT_STRATEGY : constant := 8#0000#; -- zlib.h:153 + -- zlib.h:153 + Z_BINARY : constant := 8#0000#; -- zlib.h:156 + -- zlib.h:156 + Z_ASCII : constant := 1; -- zlib.h:157 + -- zlib.h:157 + Z_UNKNOWN : constant := 2; -- zlib.h:158 + -- zlib.h:158 + Z_DEFLATED : constant := 8; -- zlib.h:161 + -- zlib.h:161 + Z_NULL : constant := 8#0000#; -- zlib.h:164 + -- for initializing zalloc, zfree, opaque + -- zlib.h:164 + type gzFile is new Voidp; -- zlib.h:646 + + type Z_Stream is private; + + type Z_Streamp is access all Z_Stream; -- zlib.h:89 + + type alloc_func is access function + (Opaque : Voidp; + Items : UInt; + Size : UInt) + return Voidp; -- zlib.h:63 + + type free_func is access procedure (opaque : Voidp; address : Voidp); + + function zlibVersion return Chars_Ptr; + + function Deflate (strm : Z_Streamp; flush : Int) return Int; + + function DeflateEnd (strm : Z_Streamp) return Int; + + function Inflate (strm : Z_Streamp; flush : Int) return Int; + + function InflateEnd (strm : Z_Streamp) return Int; + + function deflateSetDictionary + (strm : Z_Streamp; + dictionary : Byte_Access; + dictLength : UInt) + return Int; + + function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int; + -- zlib.h:478 + + function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495 + + function deflateParams + (strm : Z_Streamp; + level : Int; + strategy : Int) + return Int; -- zlib.h:506 + + function inflateSetDictionary + (strm : Z_Streamp; + dictionary : Byte_Access; + dictLength : UInt) + return Int; -- zlib.h:548 + + function inflateSync (strm : Z_Streamp) return Int; -- zlib.h:565 + + function inflateReset (strm : Z_Streamp) return Int; -- zlib.h:580 + + function compress + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong) + return Int; -- zlib.h:601 + + function compress2 + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong; + level : Int) + return Int; -- zlib.h:615 + + function uncompress + (dest : Byte_Access; + destLen : ULong_Access; + source : Byte_Access; + sourceLen : ULong) + return Int; + + function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile; + + function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile; + + function gzsetparams + (file : gzFile; + level : Int; + strategy : Int) + return Int; + + function gzread + (file : gzFile; + buf : Voidp; + len : UInt) + return Int; + + function gzwrite + (file : in gzFile; + buf : in Voidp; + len : in UInt) + return Int; + + function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int; + + function gzputs (file : in gzFile; s : in Chars_Ptr) return Int; + + function gzgets + (file : gzFile; + buf : Chars_Ptr; + len : Int) + return Chars_Ptr; + + function gzputc (file : gzFile; char : Int) return Int; + + function gzgetc (file : gzFile) return Int; + + function gzflush (file : gzFile; flush : Int) return Int; + + function gzseek + (file : gzFile; + offset : Int; + whence : Int) + return Int; + + function gzrewind (file : gzFile) return Int; + + function gztell (file : gzFile) return Int; + + function gzeof (file : gzFile) return Int; + + function gzclose (file : gzFile) return Int; + + function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr; + + function adler32 + (adler : ULong; + buf : Byte_Access; + len : UInt) + return ULong; + + function crc32 + (crc : ULong; + buf : Byte_Access; + len : UInt) + return ULong; + + function deflateInit + (strm : Z_Streamp; + level : Int; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function deflateInit2 + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function Deflate_Init + (strm : Z_Streamp; + level : Int; + method : Int; + windowBits : Int; + memLevel : Int; + strategy : Int) + return Int; + pragma Inline (Deflate_Init); + + function inflateInit + (strm : Z_Streamp; + version : Chars_Ptr; + stream_size : Int) + return Int; + + function inflateInit2 + (strm : in Z_Streamp; + windowBits : in Int; + version : in Chars_Ptr; + stream_size : in Int) + return Int; + + function inflateBackInit + (strm : in Z_Streamp; + windowBits : in Int; + window : in Byte_Access; + version : in Chars_Ptr; + stream_size : in Int) + return Int; + -- Size of window have to be 2**windowBits. + + function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int; + pragma Inline (Inflate_Init); + + function zError (err : Int) return Chars_Ptr; + + function inflateSyncPoint (z : Z_Streamp) return Int; + + function get_crc_table return ULong_Access; + + -- Interface to the available fields of the z_stream structure. + -- The application must update next_in and avail_in when avail_in has + -- dropped to zero. It must update next_out and avail_out when avail_out + -- has dropped to zero. The application must initialize zalloc, zfree and + -- opaque before calling the init function. + + procedure Set_In + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt); + pragma Inline (Set_In); + + procedure Set_Out + (Strm : in out Z_Stream; + Buffer : in Voidp; + Size : in UInt); + pragma Inline (Set_Out); + + procedure Set_Mem_Func + (Strm : in out Z_Stream; + Opaque : in Voidp; + Alloc : in alloc_func; + Free : in free_func); + pragma Inline (Set_Mem_Func); + + function Last_Error_Message (Strm : in Z_Stream) return String; + pragma Inline (Last_Error_Message); + + function Avail_Out (Strm : in Z_Stream) return UInt; + pragma Inline (Avail_Out); + + function Avail_In (Strm : in Z_Stream) return UInt; + pragma Inline (Avail_In); + + function Total_In (Strm : in Z_Stream) return ULong; + pragma Inline (Total_In); + + function Total_Out (Strm : in Z_Stream) return ULong; + pragma Inline (Total_Out); + + function inflateCopy + (dest : in Z_Streamp; + Source : in Z_Streamp) + return Int; + + function compressBound (Source_Len : in ULong) return ULong; + + function deflateBound + (Strm : in Z_Streamp; + Source_Len : in ULong) + return ULong; + + function gzungetc (C : in Int; File : in gzFile) return Int; + + function zlibCompileFlags return ULong; + +private + + type Z_Stream is record -- zlib.h:68 + Next_In : Voidp := Nul; -- next input byte + Avail_In : UInt := 0; -- number of bytes available at next_in + Total_In : ULong := 0; -- total nb of input bytes read so far + Next_Out : Voidp := Nul; -- next output byte should be put there + Avail_Out : UInt := 0; -- remaining free space at next_out + Total_Out : ULong := 0; -- total nb of bytes output so far + msg : Chars_Ptr; -- last error message, NULL if no error + state : Voidp; -- not visible by applications + zalloc : alloc_func := null; -- used to allocate the internal state + zfree : free_func := null; -- used to free the internal state + opaque : Voidp; -- private data object passed to + -- zalloc and zfree + data_type : Int; -- best guess about the data type: + -- ascii or binary + adler : ULong; -- adler32 value of the uncompressed + -- data + reserved : ULong; -- reserved for future use + end record; + + pragma Convention (C, Z_Stream); + + pragma Import (C, zlibVersion, "zlibVersion"); + pragma Import (C, Deflate, "deflate"); + pragma Import (C, DeflateEnd, "deflateEnd"); + pragma Import (C, Inflate, "inflate"); + pragma Import (C, InflateEnd, "inflateEnd"); + pragma Import (C, deflateSetDictionary, "deflateSetDictionary"); + pragma Import (C, deflateCopy, "deflateCopy"); + pragma Import (C, deflateReset, "deflateReset"); + pragma Import (C, deflateParams, "deflateParams"); + pragma Import (C, inflateSetDictionary, "inflateSetDictionary"); + pragma Import (C, inflateSync, "inflateSync"); + pragma Import (C, inflateReset, "inflateReset"); + pragma Import (C, compress, "compress"); + pragma Import (C, compress2, "compress2"); + pragma Import (C, uncompress, "uncompress"); + pragma Import (C, gzopen, "gzopen"); + pragma Import (C, gzdopen, "gzdopen"); + pragma Import (C, gzsetparams, "gzsetparams"); + pragma Import (C, gzread, "gzread"); + pragma Import (C, gzwrite, "gzwrite"); + pragma Import (C, gzprintf, "gzprintf"); + pragma Import (C, gzputs, "gzputs"); + pragma Import (C, gzgets, "gzgets"); + pragma Import (C, gzputc, "gzputc"); + pragma Import (C, gzgetc, "gzgetc"); + pragma Import (C, gzflush, "gzflush"); + pragma Import (C, gzseek, "gzseek"); + pragma Import (C, gzrewind, "gzrewind"); + pragma Import (C, gztell, "gztell"); + pragma Import (C, gzeof, "gzeof"); + pragma Import (C, gzclose, "gzclose"); + pragma Import (C, gzerror, "gzerror"); + pragma Import (C, adler32, "adler32"); + pragma Import (C, crc32, "crc32"); + pragma Import (C, deflateInit, "deflateInit_"); + pragma Import (C, inflateInit, "inflateInit_"); + pragma Import (C, deflateInit2, "deflateInit2_"); + pragma Import (C, inflateInit2, "inflateInit2_"); + pragma Import (C, zError, "zError"); + pragma Import (C, inflateSyncPoint, "inflateSyncPoint"); + pragma Import (C, get_crc_table, "get_crc_table"); + + -- since zlib 1.2.0: + + pragma Import (C, inflateCopy, "inflateCopy"); + pragma Import (C, compressBound, "compressBound"); + pragma Import (C, deflateBound, "deflateBound"); + pragma Import (C, gzungetc, "gzungetc"); + pragma Import (C, zlibCompileFlags, "zlibCompileFlags"); + + pragma Import (C, inflateBackInit, "inflateBackInit_"); + + -- I stopped binding the inflateBack routines, becouse realize that + -- it does not support zlib and gzip headers for now, and have no + -- symmetric deflateBack routines. + -- ZLib-Ada is symmetric regarding deflate/inflate data transformation + -- and has a similar generic callback interface for the + -- deflate/inflate transformation based on the regular Deflate/Inflate + -- routines. + + -- pragma Import (C, inflateBack, "inflateBack"); + -- pragma Import (C, inflateBackEnd, "inflateBackEnd"); + +end ZLib.Thin; diff --git a/3party/zlib/contrib/ada/zlib.adb b/3party/zlib/contrib/ada/zlib.adb new file mode 100644 index 0000000000..8b6fd686ac --- /dev/null +++ b/3party/zlib/contrib/ada/zlib.adb @@ -0,0 +1,701 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib.adb,v 1.31 2004/09/06 06:53:19 vagul Exp $ + +with Ada.Exceptions; +with Ada.Unchecked_Conversion; +with Ada.Unchecked_Deallocation; + +with Interfaces.C.Strings; + +with ZLib.Thin; + +package body ZLib is + + use type Thin.Int; + + type Z_Stream is new Thin.Z_Stream; + + type Return_Code_Enum is + (OK, + STREAM_END, + NEED_DICT, + ERRNO, + STREAM_ERROR, + DATA_ERROR, + MEM_ERROR, + BUF_ERROR, + VERSION_ERROR); + + type Flate_Step_Function is access + function (Strm : in Thin.Z_Streamp; Flush : in Thin.Int) return Thin.Int; + pragma Convention (C, Flate_Step_Function); + + type Flate_End_Function is access + function (Ctrm : in Thin.Z_Streamp) return Thin.Int; + pragma Convention (C, Flate_End_Function); + + type Flate_Type is record + Step : Flate_Step_Function; + Done : Flate_End_Function; + end record; + + subtype Footer_Array is Stream_Element_Array (1 .. 8); + + Simple_GZip_Header : constant Stream_Element_Array (1 .. 10) + := (16#1f#, 16#8b#, -- Magic header + 16#08#, -- Z_DEFLATED + 16#00#, -- Flags + 16#00#, 16#00#, 16#00#, 16#00#, -- Time + 16#00#, -- XFlags + 16#03# -- OS code + ); + -- The simplest gzip header is not for informational, but just for + -- gzip format compatibility. + -- Note that some code below is using assumption + -- Simple_GZip_Header'Last > Footer_Array'Last, so do not make + -- Simple_GZip_Header'Last <= Footer_Array'Last. + + Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum + := (0 => OK, + 1 => STREAM_END, + 2 => NEED_DICT, + -1 => ERRNO, + -2 => STREAM_ERROR, + -3 => DATA_ERROR, + -4 => MEM_ERROR, + -5 => BUF_ERROR, + -6 => VERSION_ERROR); + + Flate : constant array (Boolean) of Flate_Type + := (True => (Step => Thin.Deflate'Access, + Done => Thin.DeflateEnd'Access), + False => (Step => Thin.Inflate'Access, + Done => Thin.InflateEnd'Access)); + + Flush_Finish : constant array (Boolean) of Flush_Mode + := (True => Finish, False => No_Flush); + + procedure Raise_Error (Stream : in Z_Stream); + pragma Inline (Raise_Error); + + procedure Raise_Error (Message : in String); + pragma Inline (Raise_Error); + + procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int); + + procedure Free is new Ada.Unchecked_Deallocation + (Z_Stream, Z_Stream_Access); + + function To_Thin_Access is new Ada.Unchecked_Conversion + (Z_Stream_Access, Thin.Z_Streamp); + + procedure Translate_GZip + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- Separate translate routine for make gzip header. + + procedure Translate_Auto + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- translate routine without additional headers. + + ----------------- + -- Check_Error -- + ----------------- + + procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int) is + use type Thin.Int; + begin + if Code /= Thin.Z_OK then + Raise_Error + (Return_Code_Enum'Image (Return_Code (Code)) + & ": " & Last_Error_Message (Stream)); + end if; + end Check_Error; + + ----------- + -- Close -- + ----------- + + procedure Close + (Filter : in out Filter_Type; + Ignore_Error : in Boolean := False) + is + Code : Thin.Int; + begin + if not Ignore_Error and then not Is_Open (Filter) then + raise Status_Error; + end if; + + Code := Flate (Filter.Compression).Done (To_Thin_Access (Filter.Strm)); + + if Ignore_Error or else Code = Thin.Z_OK then + Free (Filter.Strm); + else + declare + Error_Message : constant String + := Last_Error_Message (Filter.Strm.all); + begin + Free (Filter.Strm); + Ada.Exceptions.Raise_Exception + (ZLib_Error'Identity, + Return_Code_Enum'Image (Return_Code (Code)) + & ": " & Error_Message); + end; + end if; + end Close; + + ----------- + -- CRC32 -- + ----------- + + function CRC32 + (CRC : in Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) + return Unsigned_32 + is + use Thin; + begin + return Unsigned_32 (crc32 (ULong (CRC), + Data'Address, + Data'Length)); + end CRC32; + + procedure CRC32 + (CRC : in out Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) is + begin + CRC := CRC32 (CRC, Data); + end CRC32; + + ------------------ + -- Deflate_Init -- + ------------------ + + procedure Deflate_Init + (Filter : in out Filter_Type; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Method : in Compression_Method := Deflated; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Memory_Level : in Memory_Level_Type := Default_Memory_Level; + Header : in Header_Type := Default) + is + use type Thin.Int; + Win_Bits : Thin.Int := Thin.Int (Window_Bits); + begin + if Is_Open (Filter) then + raise Status_Error; + end if; + + -- We allow ZLib to make header only in case of default header type. + -- Otherwise we would either do header by ourselfs, or do not do + -- header at all. + + if Header = None or else Header = GZip then + Win_Bits := -Win_Bits; + end if; + + -- For the GZip CRC calculation and make headers. + + if Header = GZip then + Filter.CRC := 0; + Filter.Offset := Simple_GZip_Header'First; + else + Filter.Offset := Simple_GZip_Header'Last + 1; + end if; + + Filter.Strm := new Z_Stream; + Filter.Compression := True; + Filter.Stream_End := False; + Filter.Header := Header; + + if Thin.Deflate_Init + (To_Thin_Access (Filter.Strm), + Level => Thin.Int (Level), + method => Thin.Int (Method), + windowBits => Win_Bits, + memLevel => Thin.Int (Memory_Level), + strategy => Thin.Int (Strategy)) /= Thin.Z_OK + then + Raise_Error (Filter.Strm.all); + end if; + end Deflate_Init; + + ----------- + -- Flush -- + ----------- + + procedure Flush + (Filter : in out Filter_Type; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + No_Data : Stream_Element_Array := (1 .. 0 => 0); + Last : Stream_Element_Offset; + begin + Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush); + end Flush; + + ----------------------- + -- Generic_Translate -- + ----------------------- + + procedure Generic_Translate + (Filter : in out ZLib.Filter_Type; + In_Buffer_Size : in Integer := Default_Buffer_Size; + Out_Buffer_Size : in Integer := Default_Buffer_Size) + is + In_Buffer : Stream_Element_Array + (1 .. Stream_Element_Offset (In_Buffer_Size)); + Out_Buffer : Stream_Element_Array + (1 .. Stream_Element_Offset (Out_Buffer_Size)); + Last : Stream_Element_Offset; + In_Last : Stream_Element_Offset; + In_First : Stream_Element_Offset; + Out_Last : Stream_Element_Offset; + begin + Main : loop + Data_In (In_Buffer, Last); + + In_First := In_Buffer'First; + + loop + Translate + (Filter => Filter, + In_Data => In_Buffer (In_First .. Last), + In_Last => In_Last, + Out_Data => Out_Buffer, + Out_Last => Out_Last, + Flush => Flush_Finish (Last < In_Buffer'First)); + + if Out_Buffer'First <= Out_Last then + Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last)); + end if; + + exit Main when Stream_End (Filter); + + -- The end of in buffer. + + exit when In_Last = Last; + + In_First := In_Last + 1; + end loop; + end loop Main; + + end Generic_Translate; + + ------------------ + -- Inflate_Init -- + ------------------ + + procedure Inflate_Init + (Filter : in out Filter_Type; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Header : in Header_Type := Default) + is + use type Thin.Int; + Win_Bits : Thin.Int := Thin.Int (Window_Bits); + + procedure Check_Version; + -- Check the latest header types compatibility. + + procedure Check_Version is + begin + if Version <= "1.1.4" then + Raise_Error + ("Inflate header type " & Header_Type'Image (Header) + & " incompatible with ZLib version " & Version); + end if; + end Check_Version; + + begin + if Is_Open (Filter) then + raise Status_Error; + end if; + + case Header is + when None => + Check_Version; + + -- Inflate data without headers determined + -- by negative Win_Bits. + + Win_Bits := -Win_Bits; + when GZip => + Check_Version; + + -- Inflate gzip data defined by flag 16. + + Win_Bits := Win_Bits + 16; + when Auto => + Check_Version; + + -- Inflate with automatic detection + -- of gzip or native header defined by flag 32. + + Win_Bits := Win_Bits + 32; + when Default => null; + end case; + + Filter.Strm := new Z_Stream; + Filter.Compression := False; + Filter.Stream_End := False; + Filter.Header := Header; + + if Thin.Inflate_Init + (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK + then + Raise_Error (Filter.Strm.all); + end if; + end Inflate_Init; + + ------------- + -- Is_Open -- + ------------- + + function Is_Open (Filter : in Filter_Type) return Boolean is + begin + return Filter.Strm /= null; + end Is_Open; + + ----------------- + -- Raise_Error -- + ----------------- + + procedure Raise_Error (Message : in String) is + begin + Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message); + end Raise_Error; + + procedure Raise_Error (Stream : in Z_Stream) is + begin + Raise_Error (Last_Error_Message (Stream)); + end Raise_Error; + + ---------- + -- Read -- + ---------- + + procedure Read + (Filter : in out Filter_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode := No_Flush) + is + In_Last : Stream_Element_Offset; + Item_First : Ada.Streams.Stream_Element_Offset := Item'First; + V_Flush : Flush_Mode := Flush; + + begin + pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1); + pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last); + + loop + if Rest_Last = Buffer'First - 1 then + V_Flush := Finish; + + elsif Rest_First > Rest_Last then + Read (Buffer, Rest_Last); + Rest_First := Buffer'First; + + if Rest_Last < Buffer'First then + V_Flush := Finish; + end if; + end if; + + Translate + (Filter => Filter, + In_Data => Buffer (Rest_First .. Rest_Last), + In_Last => In_Last, + Out_Data => Item (Item_First .. Item'Last), + Out_Last => Last, + Flush => V_Flush); + + Rest_First := In_Last + 1; + + exit when Stream_End (Filter) + or else Last = Item'Last + or else (Last >= Item'First and then Allow_Read_Some); + + Item_First := Last + 1; + end loop; + end Read; + + ---------------- + -- Stream_End -- + ---------------- + + function Stream_End (Filter : in Filter_Type) return Boolean is + begin + if Filter.Header = GZip and Filter.Compression then + return Filter.Stream_End + and then Filter.Offset = Footer_Array'Last + 1; + else + return Filter.Stream_End; + end if; + end Stream_End; + + -------------- + -- Total_In -- + -------------- + + function Total_In (Filter : in Filter_Type) return Count is + begin + return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all)); + end Total_In; + + --------------- + -- Total_Out -- + --------------- + + function Total_Out (Filter : in Filter_Type) return Count is + begin + return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all)); + end Total_Out; + + --------------- + -- Translate -- + --------------- + + procedure Translate + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) is + begin + if Filter.Header = GZip and then Filter.Compression then + Translate_GZip + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data, + Out_Last => Out_Last, + Flush => Flush); + else + Translate_Auto + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data, + Out_Last => Out_Last, + Flush => Flush); + end if; + end Translate; + + -------------------- + -- Translate_Auto -- + -------------------- + + procedure Translate_Auto + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + use type Thin.Int; + Code : Thin.Int; + + begin + if not Is_Open (Filter) then + raise Status_Error; + end if; + + if Out_Data'Length = 0 and then In_Data'Length = 0 then + raise Constraint_Error; + end if; + + Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length); + Set_In (Filter.Strm.all, In_Data'Address, In_Data'Length); + + Code := Flate (Filter.Compression).Step + (To_Thin_Access (Filter.Strm), + Thin.Int (Flush)); + + if Code = Thin.Z_STREAM_END then + Filter.Stream_End := True; + else + Check_Error (Filter.Strm.all, Code); + end if; + + In_Last := In_Data'Last + - Stream_Element_Offset (Avail_In (Filter.Strm.all)); + Out_Last := Out_Data'Last + - Stream_Element_Offset (Avail_Out (Filter.Strm.all)); + end Translate_Auto; + + -------------------- + -- Translate_GZip -- + -------------------- + + procedure Translate_GZip + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode) + is + Out_First : Stream_Element_Offset; + + procedure Add_Data (Data : in Stream_Element_Array); + -- Add data to stream from the Filter.Offset till necessary, + -- used for add gzip headr/footer. + + procedure Put_32 + (Item : in out Stream_Element_Array; + Data : in Unsigned_32); + pragma Inline (Put_32); + + -------------- + -- Add_Data -- + -------------- + + procedure Add_Data (Data : in Stream_Element_Array) is + Data_First : Stream_Element_Offset renames Filter.Offset; + Data_Last : Stream_Element_Offset; + Data_Len : Stream_Element_Offset; -- -1 + Out_Len : Stream_Element_Offset; -- -1 + begin + Out_First := Out_Last + 1; + + if Data_First > Data'Last then + return; + end if; + + Data_Len := Data'Last - Data_First; + Out_Len := Out_Data'Last - Out_First; + + if Data_Len <= Out_Len then + Out_Last := Out_First + Data_Len; + Data_Last := Data'Last; + else + Out_Last := Out_Data'Last; + Data_Last := Data_First + Out_Len; + end if; + + Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last); + + Data_First := Data_Last + 1; + Out_First := Out_Last + 1; + end Add_Data; + + ------------ + -- Put_32 -- + ------------ + + procedure Put_32 + (Item : in out Stream_Element_Array; + Data : in Unsigned_32) + is + D : Unsigned_32 := Data; + begin + for J in Item'First .. Item'First + 3 loop + Item (J) := Stream_Element (D and 16#FF#); + D := Shift_Right (D, 8); + end loop; + end Put_32; + + begin + Out_Last := Out_Data'First - 1; + + if not Filter.Stream_End then + Add_Data (Simple_GZip_Header); + + Translate_Auto + (Filter => Filter, + In_Data => In_Data, + In_Last => In_Last, + Out_Data => Out_Data (Out_First .. Out_Data'Last), + Out_Last => Out_Last, + Flush => Flush); + + CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last)); + end if; + + if Filter.Stream_End and then Out_Last <= Out_Data'Last then + -- This detection method would work only when + -- Simple_GZip_Header'Last > Footer_Array'Last + + if Filter.Offset = Simple_GZip_Header'Last + 1 then + Filter.Offset := Footer_Array'First; + end if; + + declare + Footer : Footer_Array; + begin + Put_32 (Footer, Filter.CRC); + Put_32 (Footer (Footer'First + 4 .. Footer'Last), + Unsigned_32 (Total_In (Filter))); + Add_Data (Footer); + end; + end if; + end Translate_GZip; + + ------------- + -- Version -- + ------------- + + function Version return String is + begin + return Interfaces.C.Strings.Value (Thin.zlibVersion); + end Version; + + ----------- + -- Write -- + ----------- + + procedure Write + (Filter : in out Filter_Type; + Item : in Ada.Streams.Stream_Element_Array; + Flush : in Flush_Mode := No_Flush) + is + Buffer : Stream_Element_Array (1 .. Buffer_Size); + In_Last : Stream_Element_Offset; + Out_Last : Stream_Element_Offset; + In_First : Stream_Element_Offset := Item'First; + begin + if Item'Length = 0 and Flush = No_Flush then + return; + end if; + + loop + Translate + (Filter => Filter, + In_Data => Item (In_First .. Item'Last), + In_Last => In_Last, + Out_Data => Buffer, + Out_Last => Out_Last, + Flush => Flush); + + if Out_Last >= Buffer'First then + Write (Buffer (1 .. Out_Last)); + end if; + + exit when In_Last = Item'Last or Stream_End (Filter); + + In_First := In_Last + 1; + end loop; + end Write; + +end ZLib; diff --git a/3party/zlib/contrib/ada/zlib.ads b/3party/zlib/contrib/ada/zlib.ads new file mode 100644 index 0000000000..79ffc4095c --- /dev/null +++ b/3party/zlib/contrib/ada/zlib.ads @@ -0,0 +1,328 @@ +------------------------------------------------------------------------------ +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2004 Dmitriy Anisimkov -- +-- -- +-- This library is free software; you can redistribute it and/or modify -- +-- it under the terms of the GNU General Public License as published by -- +-- the Free Software Foundation; either version 2 of the License, or (at -- +-- your option) any later version. -- +-- -- +-- This library is distributed in the hope that it will be useful, but -- +-- WITHOUT ANY WARRANTY; without even the implied warranty of -- +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -- +-- General Public License for more details. -- +-- -- +-- You should have received a copy of the GNU General Public License -- +-- along with this library; if not, write to the Free Software Foundation, -- +-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +------------------------------------------------------------------------------ + +-- $Id: zlib.ads,v 1.26 2004/09/06 06:53:19 vagul Exp $ + +with Ada.Streams; + +with Interfaces; + +package ZLib is + + ZLib_Error : exception; + Status_Error : exception; + + type Compression_Level is new Integer range -1 .. 9; + + type Flush_Mode is private; + + type Compression_Method is private; + + type Window_Bits_Type is new Integer range 8 .. 15; + + type Memory_Level_Type is new Integer range 1 .. 9; + + type Unsigned_32 is new Interfaces.Unsigned_32; + + type Strategy_Type is private; + + type Header_Type is (None, Auto, Default, GZip); + -- Header type usage have a some limitation for inflate. + -- See comment for Inflate_Init. + + subtype Count is Ada.Streams.Stream_Element_Count; + + Default_Memory_Level : constant Memory_Level_Type := 8; + Default_Window_Bits : constant Window_Bits_Type := 15; + + ---------------------------------- + -- Compression method constants -- + ---------------------------------- + + Deflated : constant Compression_Method; + -- Only one method allowed in this ZLib version + + --------------------------------- + -- Compression level constants -- + --------------------------------- + + No_Compression : constant Compression_Level := 0; + Best_Speed : constant Compression_Level := 1; + Best_Compression : constant Compression_Level := 9; + Default_Compression : constant Compression_Level := -1; + + -------------------------- + -- Flush mode constants -- + -------------------------- + + No_Flush : constant Flush_Mode; + -- Regular way for compression, no flush + + Partial_Flush : constant Flush_Mode; + -- Will be removed, use Z_SYNC_FLUSH instead + + Sync_Flush : constant Flush_Mode; + -- All pending output is flushed to the output buffer and the output + -- is aligned on a byte boundary, so that the decompressor can get all + -- input data available so far. (In particular avail_in is zero after the + -- call if enough output space has been provided before the call.) + -- Flushing may degrade compression for some compression algorithms and so + -- it should be used only when necessary. + + Block_Flush : constant Flush_Mode; + -- Z_BLOCK requests that inflate() stop + -- if and when it get to the next deflate block boundary. When decoding the + -- zlib or gzip format, this will cause inflate() to return immediately + -- after the header and before the first block. When doing a raw inflate, + -- inflate() will go ahead and process the first block, and will return + -- when it gets to the end of that block, or when it runs out of data. + + Full_Flush : constant Flush_Mode; + -- All output is flushed as with SYNC_FLUSH, and the compression state + -- is reset so that decompression can restart from this point if previous + -- compressed data has been damaged or if random access is desired. Using + -- Full_Flush too often can seriously degrade the compression. + + Finish : constant Flush_Mode; + -- Just for tell the compressor that input data is complete. + + ------------------------------------ + -- Compression strategy constants -- + ------------------------------------ + + -- RLE stategy could be used only in version 1.2.0 and later. + + Filtered : constant Strategy_Type; + Huffman_Only : constant Strategy_Type; + RLE : constant Strategy_Type; + Default_Strategy : constant Strategy_Type; + + Default_Buffer_Size : constant := 4096; + + type Filter_Type is tagged limited private; + -- The filter is for compression and for decompression. + -- The usage of the type is depend of its initialization. + + function Version return String; + pragma Inline (Version); + -- Return string representation of the ZLib version. + + procedure Deflate_Init + (Filter : in out Filter_Type; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Method : in Compression_Method := Deflated; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Memory_Level : in Memory_Level_Type := Default_Memory_Level; + Header : in Header_Type := Default); + -- Compressor initialization. + -- When Header parameter is Auto or Default, then default zlib header + -- would be provided for compressed data. + -- When Header is GZip, then gzip header would be set instead of + -- default header. + -- When Header is None, no header would be set for compressed data. + + procedure Inflate_Init + (Filter : in out Filter_Type; + Window_Bits : in Window_Bits_Type := Default_Window_Bits; + Header : in Header_Type := Default); + -- Decompressor initialization. + -- Default header type mean that ZLib default header is expecting in the + -- input compressed stream. + -- Header type None mean that no header is expecting in the input stream. + -- GZip header type mean that GZip header is expecting in the + -- input compressed stream. + -- Auto header type mean that header type (GZip or Native) would be + -- detected automatically in the input stream. + -- Note that header types parameter values None, GZip and Auto are + -- supported for inflate routine only in ZLib versions 1.2.0.2 and later. + -- Deflate_Init is supporting all header types. + + function Is_Open (Filter : in Filter_Type) return Boolean; + pragma Inline (Is_Open); + -- Is the filter opened for compression or decompression. + + procedure Close + (Filter : in out Filter_Type; + Ignore_Error : in Boolean := False); + -- Closing the compression or decompressor. + -- If stream is closing before the complete and Ignore_Error is False, + -- The exception would be raised. + + generic + with procedure Data_In + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + with procedure Data_Out + (Item : in Ada.Streams.Stream_Element_Array); + procedure Generic_Translate + (Filter : in out Filter_Type; + In_Buffer_Size : in Integer := Default_Buffer_Size; + Out_Buffer_Size : in Integer := Default_Buffer_Size); + -- Compress/decompress data fetch from Data_In routine and pass the result + -- to the Data_Out routine. User should provide Data_In and Data_Out + -- for compression/decompression data flow. + -- Compression or decompression depend on Filter initialization. + + function Total_In (Filter : in Filter_Type) return Count; + pragma Inline (Total_In); + -- Returns total number of input bytes read so far + + function Total_Out (Filter : in Filter_Type) return Count; + pragma Inline (Total_Out); + -- Returns total number of bytes output so far + + function CRC32 + (CRC : in Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array) + return Unsigned_32; + pragma Inline (CRC32); + -- Compute CRC32, it could be necessary for make gzip format + + procedure CRC32 + (CRC : in out Unsigned_32; + Data : in Ada.Streams.Stream_Element_Array); + pragma Inline (CRC32); + -- Compute CRC32, it could be necessary for make gzip format + + ------------------------------------------------- + -- Below is more complex low level routines. -- + ------------------------------------------------- + + procedure Translate + (Filter : in out Filter_Type; + In_Data : in Ada.Streams.Stream_Element_Array; + In_Last : out Ada.Streams.Stream_Element_Offset; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + -- Compress/decompress the In_Data buffer and place the result into + -- Out_Data. In_Last is the index of last element from In_Data accepted by + -- the Filter. Out_Last is the last element of the received data from + -- Filter. To tell the filter that incoming data are complete put the + -- Flush parameter to Finish. + + function Stream_End (Filter : in Filter_Type) return Boolean; + pragma Inline (Stream_End); + -- Return the true when the stream is complete. + + procedure Flush + (Filter : in out Filter_Type; + Out_Data : out Ada.Streams.Stream_Element_Array; + Out_Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode); + pragma Inline (Flush); + -- Flushing the data from the compressor. + + generic + with procedure Write + (Item : in Ada.Streams.Stream_Element_Array); + -- User should provide this routine for accept + -- compressed/decompressed data. + + Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + -- Buffer size for Write user routine. + + procedure Write + (Filter : in out Filter_Type; + Item : in Ada.Streams.Stream_Element_Array; + Flush : in Flush_Mode := No_Flush); + -- Compress/Decompress data from Item to the generic parameter procedure + -- Write. Output buffer size could be set in Buffer_Size generic parameter. + + generic + with procedure Read + (Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + -- User should provide data for compression/decompression + -- thru this routine. + + Buffer : in out Ada.Streams.Stream_Element_Array; + -- Buffer for keep remaining data from the previous + -- back read. + + Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset; + -- Rest_First have to be initialized to Buffer'Last + 1 + -- Rest_Last have to be initialized to Buffer'Last + -- before usage. + + Allow_Read_Some : in Boolean := False; + -- Is it allowed to return Last < Item'Last before end of data. + + procedure Read + (Filter : in out Filter_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset; + Flush : in Flush_Mode := No_Flush); + -- Compress/Decompress data from generic parameter procedure Read to the + -- Item. User should provide Buffer and initialized Rest_First, Rest_Last + -- indicators. If Allow_Read_Some is True, Read routines could return + -- Last < Item'Last only at end of stream. + +private + + use Ada.Streams; + + pragma Assert (Ada.Streams.Stream_Element'Size = 8); + pragma Assert (Ada.Streams.Stream_Element'Modulus = 2**8); + + type Flush_Mode is new Integer range 0 .. 5; + + type Compression_Method is new Integer range 8 .. 8; + + type Strategy_Type is new Integer range 0 .. 3; + + No_Flush : constant Flush_Mode := 0; + Partial_Flush : constant Flush_Mode := 1; + Sync_Flush : constant Flush_Mode := 2; + Full_Flush : constant Flush_Mode := 3; + Finish : constant Flush_Mode := 4; + Block_Flush : constant Flush_Mode := 5; + + Filtered : constant Strategy_Type := 1; + Huffman_Only : constant Strategy_Type := 2; + RLE : constant Strategy_Type := 3; + Default_Strategy : constant Strategy_Type := 0; + + Deflated : constant Compression_Method := 8; + + type Z_Stream; + + type Z_Stream_Access is access all Z_Stream; + + type Filter_Type is tagged limited record + Strm : Z_Stream_Access; + Compression : Boolean; + Stream_End : Boolean; + Header : Header_Type; + CRC : Unsigned_32; + Offset : Stream_Element_Offset; + -- Offset for gzip header/footer output. + end record; + +end ZLib; diff --git a/3party/zlib/contrib/ada/zlib.gpr b/3party/zlib/contrib/ada/zlib.gpr new file mode 100644 index 0000000000..296b22aa96 --- /dev/null +++ b/3party/zlib/contrib/ada/zlib.gpr @@ -0,0 +1,20 @@ +project Zlib is + + for Languages use ("Ada"); + for Source_Dirs use ("."); + for Object_Dir use "."; + for Main use ("test.adb", "mtest.adb", "read.adb", "buffer_demo"); + + package Compiler is + for Default_Switches ("ada") use ("-gnatwcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst"); + end Compiler; + + package Linker is + for Default_Switches ("ada") use ("-lz"); + end Linker; + + package Builder is + for Default_Switches ("ada") use ("-s", "-gnatQ"); + end Builder; + +end Zlib; diff --git a/3party/zlib/contrib/amd64/amd64-match.S b/3party/zlib/contrib/amd64/amd64-match.S new file mode 100644 index 0000000000..81d4a1c949 --- /dev/null +++ b/3party/zlib/contrib/amd64/amd64-match.S @@ -0,0 +1,452 @@ +/* + * match.S -- optimized version of longest_match() + * based on the similar work by Gilles Vollant, and Brian Raiter, written 1998 + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the BSD License. Use by owners of Che Guevarra + * parafernalia is prohibited, where possible, and highly discouraged + * elsewhere. + */ + +#ifndef NO_UNDERLINE +# define match_init _match_init +# define longest_match _longest_match +#endif + +#define scanend ebx +#define scanendw bx +#define chainlenwmask edx /* high word: current chain len low word: s->wmask */ +#define curmatch rsi +#define curmatchd esi +#define windowbestlen r8 +#define scanalign r9 +#define scanalignd r9d +#define window r10 +#define bestlen r11 +#define bestlend r11d +#define scanstart r12d +#define scanstartw r12w +#define scan r13 +#define nicematch r14d +#define limit r15 +#define limitd r15d +#define prev rcx + +/* + * The 258 is a "magic number, not a parameter -- changing it + * breaks the hell loose + */ +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ +#define LocalVarsSize (112) +#define _chainlenwmask ( 8-LocalVarsSize)(%rsp) +#define _windowbestlen (16-LocalVarsSize)(%rsp) +#define save_r14 (24-LocalVarsSize)(%rsp) +#define save_rsi (32-LocalVarsSize)(%rsp) +#define save_rbx (40-LocalVarsSize)(%rsp) +#define save_r12 (56-LocalVarsSize)(%rsp) +#define save_r13 (64-LocalVarsSize)(%rsp) +#define save_r15 (80-LocalVarsSize)(%rsp) + + +.globl match_init, longest_match + +/* + * On AMD64 the first argument of a function (in our case -- the pointer to + * deflate_state structure) is passed in %rdi, hence our offsets below are + * all off of that. + */ + +/* you can check the structure offset by running + +#include <stdlib.h> +#include <stdio.h> +#include "deflate.h" + +void print_depl() +{ +deflate_state ds; +deflate_state *s=&ds; +printf("size pointer=%u\n",(int)sizeof(void*)); + +printf("#define dsWSize (%3u)(%%rdi)\n",(int)(((char*)&(s->w_size))-((char*)s))); +printf("#define dsWMask (%3u)(%%rdi)\n",(int)(((char*)&(s->w_mask))-((char*)s))); +printf("#define dsWindow (%3u)(%%rdi)\n",(int)(((char*)&(s->window))-((char*)s))); +printf("#define dsPrev (%3u)(%%rdi)\n",(int)(((char*)&(s->prev))-((char*)s))); +printf("#define dsMatchLen (%3u)(%%rdi)\n",(int)(((char*)&(s->match_length))-((char*)s))); +printf("#define dsPrevMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_match))-((char*)s))); +printf("#define dsStrStart (%3u)(%%rdi)\n",(int)(((char*)&(s->strstart))-((char*)s))); +printf("#define dsMatchStart (%3u)(%%rdi)\n",(int)(((char*)&(s->match_start))-((char*)s))); +printf("#define dsLookahead (%3u)(%%rdi)\n",(int)(((char*)&(s->lookahead))-((char*)s))); +printf("#define dsPrevLen (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_length))-((char*)s))); +printf("#define dsMaxChainLen (%3u)(%%rdi)\n",(int)(((char*)&(s->max_chain_length))-((char*)s))); +printf("#define dsGoodMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->good_match))-((char*)s))); +printf("#define dsNiceMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->nice_match))-((char*)s))); +} + +*/ + + +/* + to compile for XCode 3.2 on MacOSX x86_64 + - run "gcc -g -c -DXCODE_MAC_X64_STRUCTURE amd64-match.S" + */ + + +#ifndef CURRENT_LINX_XCODE_MAC_X64_STRUCTURE +#define dsWSize ( 68)(%rdi) +#define dsWMask ( 76)(%rdi) +#define dsWindow ( 80)(%rdi) +#define dsPrev ( 96)(%rdi) +#define dsMatchLen (144)(%rdi) +#define dsPrevMatch (148)(%rdi) +#define dsStrStart (156)(%rdi) +#define dsMatchStart (160)(%rdi) +#define dsLookahead (164)(%rdi) +#define dsPrevLen (168)(%rdi) +#define dsMaxChainLen (172)(%rdi) +#define dsGoodMatch (188)(%rdi) +#define dsNiceMatch (192)(%rdi) + +#else + +#ifndef STRUCT_OFFSET +# define STRUCT_OFFSET (0) +#endif + + +#define dsWSize ( 56 + STRUCT_OFFSET)(%rdi) +#define dsWMask ( 64 + STRUCT_OFFSET)(%rdi) +#define dsWindow ( 72 + STRUCT_OFFSET)(%rdi) +#define dsPrev ( 88 + STRUCT_OFFSET)(%rdi) +#define dsMatchLen (136 + STRUCT_OFFSET)(%rdi) +#define dsPrevMatch (140 + STRUCT_OFFSET)(%rdi) +#define dsStrStart (148 + STRUCT_OFFSET)(%rdi) +#define dsMatchStart (152 + STRUCT_OFFSET)(%rdi) +#define dsLookahead (156 + STRUCT_OFFSET)(%rdi) +#define dsPrevLen (160 + STRUCT_OFFSET)(%rdi) +#define dsMaxChainLen (164 + STRUCT_OFFSET)(%rdi) +#define dsGoodMatch (180 + STRUCT_OFFSET)(%rdi) +#define dsNiceMatch (184 + STRUCT_OFFSET)(%rdi) + +#endif + + + + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: +/* + * Retrieve the function arguments. %curmatch will hold cur_match + * throughout the entire function (passed via rsi on amd64). + * rdi will hold the pointer to the deflate_state (first arg on amd64) + */ + mov %rsi, save_rsi + mov %rbx, save_rbx + mov %r12, save_r12 + mov %r13, save_r13 + mov %r14, save_r14 + mov %r15, save_r15 + +/* uInt wmask = s->w_mask; */ +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen, %eax + movl dsGoodMatch, %ebx + cmpl %ebx, %eax + movl dsWMask, %eax + movl dsMaxChainLen, %chainlenwmask + jl LastMatchGood + shrl $2, %chainlenwmask +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the wmask */ +/* value, which it will always accompany. */ + + decl %chainlenwmask + shll $16, %chainlenwmask + orl %eax, %chainlenwmask + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch, %eax + movl dsLookahead, %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, %nicematch + +/* register Bytef *scan = s->window + s->strstart; */ + + mov dsWindow, %window + movl dsStrStart, %limitd + lea (%limit, %window), %scan + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + mov %scan, %scanalign + negl %scanalignd + andl $3, %scanalignd + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize, %eax + subl $MIN_LOOKAHEAD, %eax + xorl %ecx, %ecx + subl %eax, %limitd + cmovng %ecx, %limitd + +/* int best_len = s->prev_length; */ + + movl dsPrevLen, %bestlend + +/* Store the sum of s->window + best_len in %windowbestlen locally, and in memory. */ + + lea (%window, %bestlen), %windowbestlen + mov %windowbestlen, _windowbestlen + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ +/* Posf *prev = s->prev; */ + + movzwl (%scan), %scanstart + movzwl -1(%scan, %bestlen), %scanend + mov dsPrev, %prev + +/* Jump into the main loop. */ + + movl %chainlenwmask, _chainlenwmask + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + */ +LookupLoop: + andl %chainlenwmask, %curmatchd + movzwl (%prev, %curmatch, 2), %curmatchd + cmpl %limitd, %curmatchd + jbe LeaveNow + subl $0x00010000, %chainlenwmask + js LeaveNow +LoopEntry: cmpw -1(%windowbestlen, %curmatch), %scanendw + jne LookupLoop + cmpw %scanstartw, (%window, %curmatch) + jne LookupLoop + +/* Store the current value of chainlen. */ + movl %chainlenwmask, _chainlenwmask + +/* %scan is the string under scrutiny, and %prev to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + mov $(-MAX_MATCH_8), %rdx + lea (%curmatch, %window), %windowbestlen + lea MAX_MATCH_8(%windowbestlen, %scanalign), %windowbestlen + lea MAX_MATCH_8(%scan, %scanalign), %prev + +/* the prefetching below makes very little difference... */ + prefetcht1 (%windowbestlen, %rdx) + prefetcht1 (%prev, %rdx) + +/* + * Test the strings for equality, 8 bytes at a time. At the end, + * adjust %rdx so that it is offset to the exact byte that mismatched. + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance -- unrolling it, for example, makes no difference. + */ + +#undef USE_SSE /* works, but is 6-7% slower, than non-SSE... */ + +LoopCmps: +#ifdef USE_SSE + /* Preload the SSE registers */ + movdqu (%windowbestlen, %rdx), %xmm1 + movdqu (%prev, %rdx), %xmm2 + pcmpeqb %xmm2, %xmm1 + movdqu 16(%windowbestlen, %rdx), %xmm3 + movdqu 16(%prev, %rdx), %xmm4 + pcmpeqb %xmm4, %xmm3 + movdqu 32(%windowbestlen, %rdx), %xmm5 + movdqu 32(%prev, %rdx), %xmm6 + pcmpeqb %xmm6, %xmm5 + movdqu 48(%windowbestlen, %rdx), %xmm7 + movdqu 48(%prev, %rdx), %xmm8 + pcmpeqb %xmm8, %xmm7 + + /* Check the comparisions' results */ + pmovmskb %xmm1, %rax + notw %ax + bsfw %ax, %ax + jnz LeaveLoopCmps + + /* this is the only iteration of the loop with a possibility of having + incremented rdx by 0x108 (each loop iteration add 16*4 = 0x40 + and (0x40*4)+8=0x108 */ + add $8, %rdx + jz LenMaximum + add $8, %rdx + + + pmovmskb %xmm3, %rax + notw %ax + bsfw %ax, %ax + jnz LeaveLoopCmps + + + add $16, %rdx + + + pmovmskb %xmm5, %rax + notw %ax + bsfw %ax, %ax + jnz LeaveLoopCmps + + add $16, %rdx + + + pmovmskb %xmm7, %rax + notw %ax + bsfw %ax, %ax + jnz LeaveLoopCmps + + add $16, %rdx + + jmp LoopCmps +LeaveLoopCmps: add %rax, %rdx +#else + mov (%windowbestlen, %rdx), %rax + xor (%prev, %rdx), %rax + jnz LeaveLoopCmps + + mov 8(%windowbestlen, %rdx), %rax + xor 8(%prev, %rdx), %rax + jnz LeaveLoopCmps8 + + mov 16(%windowbestlen, %rdx), %rax + xor 16(%prev, %rdx), %rax + jnz LeaveLoopCmps16 + + add $24, %rdx + jnz LoopCmps + jmp LenMaximum +# if 0 +/* + * This three-liner is tantalizingly simple, but bsf is a slow instruction, + * and the complicated alternative down below is quite a bit faster. Sad... + */ + +LeaveLoopCmps: bsf %rax, %rax /* find the first non-zero bit */ + shrl $3, %eax /* divide by 8 to get the byte */ + add %rax, %rdx +# else +LeaveLoopCmps16: + add $8, %rdx +LeaveLoopCmps8: + add $8, %rdx +LeaveLoopCmps: testl $0xFFFFFFFF, %eax /* Check the first 4 bytes */ + jnz Check16 + add $4, %rdx + shr $32, %rax +Check16: testw $0xFFFF, %ax + jnz LenLower + add $2, %rdx + shrl $16, %eax +LenLower: subb $1, %al + adc $0, %rdx +# endif +#endif + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%prev, %rdx), %rax + sub %scan, %rax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + cmpl %bestlend, %eax + jg LongerMatch + mov _windowbestlen, %windowbestlen + mov dsPrev, %prev + movl _chainlenwmask, %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: + movl %eax, %bestlend + movl %curmatchd, dsMatchStart + cmpl %nicematch, %eax + jge LeaveNow + + lea (%window, %bestlen), %windowbestlen + mov %windowbestlen, _windowbestlen + + movzwl -1(%scan, %rax), %scanend + mov dsPrev, %prev + movl _chainlenwmask, %chainlenwmask + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: + movl $MAX_MATCH, %bestlend + movl %curmatchd, dsMatchStart + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl dsLookahead, %eax + cmpl %eax, %bestlend + cmovngl %bestlend, %eax +LookaheadRet: + +/* Restore the registers and return from whence we came. */ + + mov save_rsi, %rsi + mov save_rbx, %rbx + mov save_r12, %r12 + mov save_r13, %r13 + mov save_r14, %r14 + mov save_r15, %r15 + + ret + +match_init: ret diff --git a/3party/zlib/contrib/asm686/README.686 b/3party/zlib/contrib/asm686/README.686 new file mode 100644 index 0000000000..a0bf3bea4a --- /dev/null +++ b/3party/zlib/contrib/asm686/README.686 @@ -0,0 +1,51 @@ +This is a patched version of zlib, modified to use +Pentium-Pro-optimized assembly code in the deflation algorithm. The +files changed/added by this patch are: + +README.686 +match.S + +The speedup that this patch provides varies, depending on whether the +compiler used to build the original version of zlib falls afoul of the +PPro's speed traps. My own tests show a speedup of around 10-20% at +the default compression level, and 20-30% using -9, against a version +compiled using gcc 2.7.2.3. Your mileage may vary. + +Note that this code has been tailored for the PPro/PII in particular, +and will not perform particuarly well on a Pentium. + +If you are using an assembler other than GNU as, you will have to +translate match.S to use your assembler's syntax. (Have fun.) + +Brian Raiter +breadbox@muppetlabs.com +April, 1998 + + +Added for zlib 1.1.3: + +The patches come from +http://www.muppetlabs.com/~breadbox/software/assembly.html + +To compile zlib with this asm file, copy match.S to the zlib directory +then do: + +CFLAGS="-O3 -DASMV" ./configure +make OBJA=match.o + + +Update: + +I've been ignoring these assembly routines for years, believing that +gcc's generated code had caught up with it sometime around gcc 2.95 +and the major rearchitecting of the Pentium 4. However, I recently +learned that, despite what I believed, this code still has some life +in it. On the Pentium 4 and AMD64 chips, it continues to run about 8% +faster than the code produced by gcc 4.1. + +In acknowledgement of its continuing usefulness, I've altered the +license to match that of the rest of zlib. Share and Enjoy! + +Brian Raiter +breadbox@muppetlabs.com +April, 2007 diff --git a/3party/zlib/contrib/asm686/match.S b/3party/zlib/contrib/asm686/match.S new file mode 100644 index 0000000000..06817e1dd0 --- /dev/null +++ b/3party/zlib/contrib/asm686/match.S @@ -0,0 +1,343 @@ +/* match.S -- x86 assembly version of the zlib longest_match() function. + * Optimized for the Intel 686 chips (PPro and later). + * + * Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com> + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the author be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + */ + +#ifndef NO_UNDERLINE +#define match_init _match_init +#define longest_match _longest_match +#endif + +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ + +#define chainlenwmask 0 /* high word: current chain len */ + /* low word: s->wmask */ +#define window 4 /* local copy of s->window */ +#define windowbestlen 8 /* s->window + bestlen */ +#define scanstart 16 /* first two bytes of string */ +#define scanend 12 /* last two bytes of string */ +#define scanalign 20 /* dword-misalignment of string */ +#define nicematch 24 /* a good enough match size */ +#define bestlen 28 /* size of best match so far */ +#define scan 32 /* ptr to string wanting match */ + +#define LocalVarsSize (36) +/* saved ebx 36 */ +/* saved edi 40 */ +/* saved esi 44 */ +/* saved ebp 48 */ +/* return address 52 */ +#define deflatestate 56 /* the function arguments */ +#define curmatch 60 + +/* All the +zlib1222add offsets are due to the addition of fields + * in zlib in the deflate_state structure since the asm code was first written + * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)"). + * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0"). + * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8"). + */ + +#define zlib1222add (8) + +#define dsWSize (36+zlib1222add) +#define dsWMask (44+zlib1222add) +#define dsWindow (48+zlib1222add) +#define dsPrev (56+zlib1222add) +#define dsMatchLen (88+zlib1222add) +#define dsPrevMatch (92+zlib1222add) +#define dsStrStart (100+zlib1222add) +#define dsMatchStart (104+zlib1222add) +#define dsLookahead (108+zlib1222add) +#define dsPrevLen (112+zlib1222add) +#define dsMaxChainLen (116+zlib1222add) +#define dsGoodMatch (132+zlib1222add) +#define dsNiceMatch (136+zlib1222add) + + +.file "match.S" + +.globl match_init, longest_match + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: + +/* Save registers that the compiler may be using, and adjust %esp to */ +/* make room for our stack frame. */ + + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $LocalVarsSize, %esp + +/* Retrieve the function arguments. %ecx will hold cur_match */ +/* throughout the entire function. %edx will hold the pointer to the */ +/* deflate_state structure during the function's setup (before */ +/* entering the main loop). */ + + movl deflatestate(%esp), %edx + movl curmatch(%esp), %ecx + +/* uInt wmask = s->w_mask; */ +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen(%edx), %eax + movl dsGoodMatch(%edx), %ebx + cmpl %ebx, %eax + movl dsWMask(%edx), %eax + movl dsMaxChainLen(%edx), %ebx + jl LastMatchGood + shrl $2, %ebx +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the wmask */ +/* value, which it will always accompany. */ + + decl %ebx + shll $16, %ebx + orl %eax, %ebx + movl %ebx, chainlenwmask(%esp) + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch(%edx), %eax + movl dsLookahead(%edx), %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, nicematch(%esp) + +/* register Bytef *scan = s->window + s->strstart; */ + + movl dsWindow(%edx), %esi + movl %esi, window(%esp) + movl dsStrStart(%edx), %ebp + lea (%esi,%ebp), %edi + movl %edi, scan(%esp) + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + movl %edi, %eax + negl %eax + andl $3, %eax + movl %eax, scanalign(%esp) + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize(%edx), %eax + subl $MIN_LOOKAHEAD, %eax + subl %eax, %ebp + jg LimitPositive + xorl %ebp, %ebp +LimitPositive: + +/* int best_len = s->prev_length; */ + + movl dsPrevLen(%edx), %eax + movl %eax, bestlen(%esp) + +/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + addl %eax, %esi + movl %esi, windowbestlen(%esp) + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ +/* Posf *prev = s->prev; */ + + movzwl (%edi), %ebx + movl %ebx, scanstart(%esp) + movzwl -1(%edi,%eax), %ebx + movl %ebx, scanend(%esp) + movl dsPrev(%edx), %edi + +/* Jump into the main loop. */ + + movl chainlenwmask(%esp), %edx + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + * + * Within this loop: + * %ebx = scanend + * %ecx = curmatch + * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) + * %esi = windowbestlen - i.e., (window + bestlen) + * %edi = prev + * %ebp = limit + */ +LookupLoop: + andl %edx, %ecx + movzwl (%edi,%ecx,2), %ecx + cmpl %ebp, %ecx + jbe LeaveNow + subl $0x00010000, %edx + js LeaveNow +LoopEntry: movzwl -1(%esi,%ecx), %eax + cmpl %ebx, %eax + jnz LookupLoop + movl window(%esp), %eax + movzwl (%eax,%ecx), %eax + cmpl scanstart(%esp), %eax + jnz LookupLoop + +/* Store the current value of chainlen. */ + + movl %edx, chainlenwmask(%esp) + +/* Point %edi to the string under scrutiny, and %esi to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + movl window(%esp), %esi + movl scan(%esp), %edi + addl %ecx, %esi + movl scanalign(%esp), %eax + movl $(-MAX_MATCH_8), %edx + lea MAX_MATCH_8(%edi,%eax), %edi + lea MAX_MATCH_8(%esi,%eax), %esi + +/* Test the strings for equality, 8 bytes at a time. At the end, + * adjust %edx so that it is offset to the exact byte that mismatched. + * + * We already know at this point that the first three bytes of the + * strings match each other, and they can be safely passed over before + * starting the compare loop. So what this code does is skip over 0-3 + * bytes, as much as necessary in order to dword-align the %edi + * pointer. (%esi will still be misaligned three times out of four.) + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance. + */ +LoopCmps: + movl (%esi,%edx), %eax + xorl (%edi,%edx), %eax + jnz LeaveLoopCmps + movl 4(%esi,%edx), %eax + xorl 4(%edi,%edx), %eax + jnz LeaveLoopCmps4 + addl $8, %edx + jnz LoopCmps + jmp LenMaximum +LeaveLoopCmps4: addl $4, %edx +LeaveLoopCmps: testl $0x0000FFFF, %eax + jnz LenLower + addl $2, %edx + shrl $16, %eax +LenLower: subb $1, %al + adcl $0, %edx + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%edi,%edx), %eax + movl scan(%esp), %edi + subl %edi, %eax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + cmpl %ebx, %eax + jg LongerMatch + movl windowbestlen(%esp), %esi + movl dsPrev(%edx), %edi + movl scanend(%esp), %ebx + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: movl nicematch(%esp), %ebx + movl %eax, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + cmpl %ebx, %eax + jge LeaveNow + movl window(%esp), %esi + addl %eax, %esi + movl %esi, windowbestlen(%esp) + movzwl -1(%edi,%eax), %ebx + movl dsPrev(%edx), %edi + movl %ebx, scanend(%esp) + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: movl deflatestate(%esp), %edx + movl $MAX_MATCH, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + movl dsLookahead(%edx), %eax + cmpl %eax, %ebx + jg LookaheadRet + movl %ebx, %eax +LookaheadRet: + +/* Restore the stack and return from whence we came. */ + + addl $LocalVarsSize, %esp + popl %ebx + popl %esi + popl %edi + popl %ebp +match_init: ret diff --git a/3party/zlib/contrib/blast/README b/3party/zlib/contrib/blast/README new file mode 100644 index 0000000000..e3a60b3f5c --- /dev/null +++ b/3party/zlib/contrib/blast/README @@ -0,0 +1,4 @@ +Read blast.h for purpose and usage. + +Mark Adler +madler@alumni.caltech.edu diff --git a/3party/zlib/contrib/blast/blast.c b/3party/zlib/contrib/blast/blast.c new file mode 100644 index 0000000000..4ce697a41f --- /dev/null +++ b/3party/zlib/contrib/blast/blast.c @@ -0,0 +1,444 @@ +/* blast.c + * Copyright (C) 2003 Mark Adler + * For conditions of distribution and use, see copyright notice in blast.h + * version 1.1, 16 Feb 2003 + * + * blast.c decompresses data compressed by the PKWare Compression Library. + * This function provides functionality similar to the explode() function of + * the PKWare library, hence the name "blast". + * + * This decompressor is based on the excellent format description provided by + * Ben Rudiak-Gould in comp.compression on August 13, 2001. Interestingly, the + * example Ben provided in the post is incorrect. The distance 110001 should + * instead be 111000. When corrected, the example byte stream becomes: + * + * 00 04 82 24 25 8f 80 7f + * + * which decompresses to "AIAIAIAIAIAIA" (without the quotes). + */ + +/* + * Change history: + * + * 1.0 12 Feb 2003 - First version + * 1.1 16 Feb 2003 - Fixed distance check for > 4 GB uncompressed data + */ + +#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */ +#include "blast.h" /* prototype for blast() */ + +#define local static /* for local function definitions */ +#define MAXBITS 13 /* maximum code length */ +#define MAXWIN 4096 /* maximum window size */ + +/* input and output state */ +struct state { + /* input state */ + blast_in infun; /* input function provided by user */ + void *inhow; /* opaque information passed to infun() */ + unsigned char *in; /* next input location */ + unsigned left; /* available input at in */ + int bitbuf; /* bit buffer */ + int bitcnt; /* number of bits in bit buffer */ + + /* input limit error return state for bits() and decode() */ + jmp_buf env; + + /* output state */ + blast_out outfun; /* output function provided by user */ + void *outhow; /* opaque information passed to outfun() */ + unsigned next; /* index of next write location in out[] */ + int first; /* true to check distances (for first 4K) */ + unsigned char out[MAXWIN]; /* output buffer and sliding window */ +}; + +/* + * Return need bits from the input stream. This always leaves less than + * eight bits in the buffer. bits() works properly for need == 0. + * + * Format notes: + * + * - Bits are stored in bytes from the least significant bit to the most + * significant bit. Therefore bits are dropped from the bottom of the bit + * buffer, using shift right, and new bytes are appended to the top of the + * bit buffer, using shift left. + */ +local int bits(struct state *s, int need) +{ + int val; /* bit accumulator */ + + /* load at least need bits into val */ + val = s->bitbuf; + while (s->bitcnt < need) { + if (s->left == 0) { + s->left = s->infun(s->inhow, &(s->in)); + if (s->left == 0) longjmp(s->env, 1); /* out of input */ + } + val |= (int)(*(s->in)++) << s->bitcnt; /* load eight bits */ + s->left--; + s->bitcnt += 8; + } + + /* drop need bits and update buffer, always zero to seven bits left */ + s->bitbuf = val >> need; + s->bitcnt -= need; + + /* return need bits, zeroing the bits above that */ + return val & ((1 << need) - 1); +} + +/* + * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of + * each length, which for a canonical code are stepped through in order. + * symbol[] are the symbol values in canonical order, where the number of + * entries is the sum of the counts in count[]. The decoding process can be + * seen in the function decode() below. + */ +struct huffman { + short *count; /* number of symbols of each length */ + short *symbol; /* canonically ordered symbols */ +}; + +/* + * Decode a code from the stream s using huffman table h. Return the symbol or + * a negative value if there is an error. If all of the lengths are zero, i.e. + * an empty code, or if the code is incomplete and an invalid code is received, + * then -9 is returned after reading MAXBITS bits. + * + * Format notes: + * + * - The codes as stored in the compressed data are bit-reversed relative to + * a simple integer ordering of codes of the same lengths. Hence below the + * bits are pulled from the compressed data one at a time and used to + * build the code value reversed from what is in the stream in order to + * permit simple integer comparisons for decoding. + * + * - The first code for the shortest length is all ones. Subsequent codes of + * the same length are simply integer decrements of the previous code. When + * moving up a length, a one bit is appended to the code. For a complete + * code, the last code of the longest length will be all zeros. To support + * this ordering, the bits pulled during decoding are inverted to apply the + * more "natural" ordering starting with all zeros and incrementing. + */ +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + int bitbuf; /* bits from stream */ + int left; /* bits left in next or left to process */ + short *next; /* next number of codes */ + + bitbuf = s->bitbuf; + left = s->bitcnt; + code = first = index = 0; + len = 1; + next = h->count + 1; + while (1) { + while (left--) { + code |= (bitbuf & 1) ^ 1; /* invert code */ + bitbuf >>= 1; + count = *next++; + if (code < first + count) { /* if length len, return symbol */ + s->bitbuf = bitbuf; + s->bitcnt = (s->bitcnt - len) & 7; + return h->symbol[index + (code - first)]; + } + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + len++; + } + left = (MAXBITS+1) - len; + if (left == 0) break; + if (s->left == 0) { + s->left = s->infun(s->inhow, &(s->in)); + if (s->left == 0) longjmp(s->env, 1); /* out of input */ + } + bitbuf = *(s->in)++; + s->left--; + if (left > 8) left = 8; + } + return -9; /* ran out of codes */ +} + +/* + * Given a list of repeated code lengths rep[0..n-1], where each byte is a + * count (high four bits + 1) and a code length (low four bits), generate the + * list of code lengths. This compaction reduces the size of the object code. + * Then given the list of code lengths length[0..n-1] representing a canonical + * Huffman code for n symbols, construct the tables required to decode those + * codes. Those tables are the number of codes of each length, and the symbols + * sorted by length, retaining their original order within each length. The + * return value is zero for a complete code set, negative for an over- + * subscribed code set, and positive for an incomplete code set. The tables + * can be used if the return value is zero or positive, but they cannot be used + * if the return value is negative. If the return value is zero, it is not + * possible for decode() using that table to return an error--any stream of + * enough bits will resolve to a symbol. If the return value is positive, then + * it is possible for decode() using that table to return an error for received + * codes past the end of the incomplete lengths. + */ +local int construct(struct huffman *h, const unsigned char *rep, int n) +{ + int symbol; /* current symbol when stepping through length[] */ + int len; /* current length when stepping through h->count[] */ + int left; /* number of possible codes left of current length */ + short offs[MAXBITS+1]; /* offsets in symbol table for each length */ + short length[256]; /* code lengths */ + + /* convert compact repeat counts into symbol bit length list */ + symbol = 0; + do { + len = *rep++; + left = (len >> 4) + 1; + len &= 15; + do { + length[symbol++] = len; + } while (--left); + } while (--n); + n = symbol; + + /* count number of codes of each length */ + for (len = 0; len <= MAXBITS; len++) + h->count[len] = 0; + for (symbol = 0; symbol < n; symbol++) + (h->count[length[symbol]])++; /* assumes lengths are within bounds */ + if (h->count[0] == n) /* no codes! */ + return 0; /* complete, but decode() will fail */ + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; /* one possible code of zero length */ + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; /* one more bit, double codes left */ + left -= h->count[len]; /* deduct count from possible codes */ + if (left < 0) return left; /* over-subscribed--return negative */ + } /* left > 0 means incomplete */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + h->count[len]; + + /* + * put symbols in table sorted by length, by symbol order within each + * length + */ + for (symbol = 0; symbol < n; symbol++) + if (length[symbol] != 0) + h->symbol[offs[length[symbol]]++] = symbol; + + /* return zero for complete set, positive for incomplete set */ + return left; +} + +/* + * Decode PKWare Compression Library stream. + * + * Format notes: + * + * - First byte is 0 if literals are uncoded or 1 if they are coded. Second + * byte is 4, 5, or 6 for the number of extra bits in the distance code. + * This is the base-2 logarithm of the dictionary size minus six. + * + * - Compressed data is a combination of literals and length/distance pairs + * terminated by an end code. Literals are either Huffman coded or + * uncoded bytes. A length/distance pair is a coded length followed by a + * coded distance to represent a string that occurs earlier in the + * uncompressed data that occurs again at the current location. + * + * - A bit preceding a literal or length/distance pair indicates which comes + * next, 0 for literals, 1 for length/distance. + * + * - If literals are uncoded, then the next eight bits are the literal, in the + * normal bit order in th stream, i.e. no bit-reversal is needed. Similarly, + * no bit reversal is needed for either the length extra bits or the distance + * extra bits. + * + * - Literal bytes are simply written to the output. A length/distance pair is + * an instruction to copy previously uncompressed bytes to the output. The + * copy is from distance bytes back in the output stream, copying for length + * bytes. + * + * - Distances pointing before the beginning of the output data are not + * permitted. + * + * - Overlapped copies, where the length is greater than the distance, are + * allowed and common. For example, a distance of one and a length of 518 + * simply copies the last byte 518 times. A distance of four and a length of + * twelve copies the last four bytes three times. A simple forward copy + * ignoring whether the length is greater than the distance or not implements + * this correctly. + */ +local int decomp(struct state *s) +{ + int lit; /* true if literals are coded */ + int dict; /* log2(dictionary size) - 6 */ + int symbol; /* decoded symbol, extra bits for distance */ + int len; /* length for copy */ + int dist; /* distance for copy */ + int copy; /* copy counter */ + unsigned char *from, *to; /* copy pointers */ + static int virgin = 1; /* build tables once */ + static short litcnt[MAXBITS+1], litsym[256]; /* litcode memory */ + static short lencnt[MAXBITS+1], lensym[16]; /* lencode memory */ + static short distcnt[MAXBITS+1], distsym[64]; /* distcode memory */ + static struct huffman litcode = {litcnt, litsym}; /* length code */ + static struct huffman lencode = {lencnt, lensym}; /* length code */ + static struct huffman distcode = {distcnt, distsym};/* distance code */ + /* bit lengths of literal codes */ + static const unsigned char litlen[] = { + 11, 124, 8, 7, 28, 7, 188, 13, 76, 4, 10, 8, 12, 10, 12, 10, 8, 23, 8, + 9, 7, 6, 7, 8, 7, 6, 55, 8, 23, 24, 12, 11, 7, 9, 11, 12, 6, 7, 22, 5, + 7, 24, 6, 11, 9, 6, 7, 22, 7, 11, 38, 7, 9, 8, 25, 11, 8, 11, 9, 12, + 8, 12, 5, 38, 5, 38, 5, 11, 7, 5, 6, 21, 6, 10, 53, 8, 7, 24, 10, 27, + 44, 253, 253, 253, 252, 252, 252, 13, 12, 45, 12, 45, 12, 61, 12, 45, + 44, 173}; + /* bit lengths of length codes 0..15 */ + static const unsigned char lenlen[] = {2, 35, 36, 53, 38, 23}; + /* bit lengths of distance codes 0..63 */ + static const unsigned char distlen[] = {2, 20, 53, 230, 247, 151, 248}; + static const short base[16] = { /* base for length codes */ + 3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 40, 72, 136, 264}; + static const char extra[16] = { /* extra bits for length codes */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8}; + + /* set up decoding tables (once--might not be thread-safe) */ + if (virgin) { + construct(&litcode, litlen, sizeof(litlen)); + construct(&lencode, lenlen, sizeof(lenlen)); + construct(&distcode, distlen, sizeof(distlen)); + virgin = 0; + } + + /* read header */ + lit = bits(s, 8); + if (lit > 1) return -1; + dict = bits(s, 8); + if (dict < 4 || dict > 6) return -2; + + /* decode literals and length/distance pairs */ + do { + if (bits(s, 1)) { + /* get length */ + symbol = decode(s, &lencode); + len = base[symbol] + bits(s, extra[symbol]); + if (len == 519) break; /* end code */ + + /* get distance */ + symbol = len == 2 ? 2 : dict; + dist = decode(s, &distcode) << symbol; + dist += bits(s, symbol); + dist++; + if (s->first && dist > s->next) + return -3; /* distance too far back */ + + /* copy length bytes from distance bytes back */ + do { + to = s->out + s->next; + from = to - dist; + copy = MAXWIN; + if (s->next < dist) { + from += copy; + copy = dist; + } + copy -= s->next; + if (copy > len) copy = len; + len -= copy; + s->next += copy; + do { + *to++ = *from++; + } while (--copy); + if (s->next == MAXWIN) { + if (s->outfun(s->outhow, s->out, s->next)) return 1; + s->next = 0; + s->first = 0; + } + } while (len != 0); + } + else { + /* get literal and write it */ + symbol = lit ? decode(s, &litcode) : bits(s, 8); + s->out[s->next++] = symbol; + if (s->next == MAXWIN) { + if (s->outfun(s->outhow, s->out, s->next)) return 1; + s->next = 0; + s->first = 0; + } + } + } while (1); + return 0; +} + +/* See comments in blast.h */ +int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow) +{ + struct state s; /* input/output state */ + int err; /* return value */ + + /* initialize input state */ + s.infun = infun; + s.inhow = inhow; + s.left = 0; + s.bitbuf = 0; + s.bitcnt = 0; + + /* initialize output state */ + s.outfun = outfun; + s.outhow = outhow; + s.next = 0; + s.first = 1; + + /* return if bits() or decode() tries to read past available input */ + if (setjmp(s.env) != 0) /* if came back here via longjmp(), */ + err = 2; /* then skip decomp(), return error */ + else + err = decomp(&s); /* decompress */ + + /* write any leftover output and update the error code if needed */ + if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0) + err = 1; + return err; +} + +#ifdef TEST +/* Example of how to use blast() */ +#include <stdio.h> +#include <stdlib.h> + +#define CHUNK 16384 + +local unsigned inf(void *how, unsigned char **buf) +{ + static unsigned char hold[CHUNK]; + + *buf = hold; + return fread(hold, 1, CHUNK, (FILE *)how); +} + +local int outf(void *how, unsigned char *buf, unsigned len) +{ + return fwrite(buf, 1, len, (FILE *)how) != len; +} + +/* Decompress a PKWare Compression Library stream from stdin to stdout */ +int main(void) +{ + int ret, n; + + /* decompress to stdout */ + ret = blast(inf, stdin, outf, stdout); + if (ret != 0) fprintf(stderr, "blast error: %d\n", ret); + + /* see if there are any leftover bytes */ + n = 0; + while (getchar() != EOF) n++; + if (n) fprintf(stderr, "blast warning: %d unused bytes of input\n", n); + + /* return blast() error code */ + return ret; +} +#endif diff --git a/3party/zlib/contrib/blast/blast.h b/3party/zlib/contrib/blast/blast.h new file mode 100644 index 0000000000..ce9e5410f4 --- /dev/null +++ b/3party/zlib/contrib/blast/blast.h @@ -0,0 +1,71 @@ +/* blast.h -- interface for blast.c + Copyright (C) 2003 Mark Adler + version 1.1, 16 Feb 2003 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + + +/* + * blast() decompresses the PKWare Data Compression Library (DCL) compressed + * format. It provides the same functionality as the explode() function in + * that library. (Note: PKWare overused the "implode" verb, and the format + * used by their library implode() function is completely different and + * incompatible with the implode compression method supported by PKZIP.) + */ + + +typedef unsigned (*blast_in)(void *how, unsigned char **buf); +typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len); +/* Definitions for input/output functions passed to blast(). See below for + * what the provided functions need to do. + */ + + +int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow); +/* Decompress input to output using the provided infun() and outfun() calls. + * On success, the return value of blast() is zero. If there is an error in + * the source data, i.e. it is not in the proper format, then a negative value + * is returned. If there is not enough input available or there is not enough + * output space, then a positive error is returned. + * + * The input function is invoked: len = infun(how, &buf), where buf is set by + * infun() to point to the input buffer, and infun() returns the number of + * available bytes there. If infun() returns zero, then blast() returns with + * an input error. (blast() only asks for input if it needs it.) inhow is for + * use by the application to pass an input descriptor to infun(), if desired. + * + * The output function is invoked: err = outfun(how, buf, len), where the bytes + * to be written are buf[0..len-1]. If err is not zero, then blast() returns + * with an output error. outfun() is always called with len <= 4096. outhow + * is for use by the application to pass an output descriptor to outfun(), if + * desired. + * + * The return codes are: + * + * 2: ran out of input before completing decompression + * 1: output error before completing decompression + * 0: successful decompression + * -1: literal flag not zero or one + * -2: dictionary size not in 4..6 + * -3: distance is too far back + * + * At the bottom of blast.c is an example program that uses blast() that can be + * compiled to produce a command-line decompression filter by defining TEST. + */ diff --git a/3party/zlib/contrib/blast/test.pk b/3party/zlib/contrib/blast/test.pk Binary files differnew file mode 100644 index 0000000000..be10b2bbb2 --- /dev/null +++ b/3party/zlib/contrib/blast/test.pk diff --git a/3party/zlib/contrib/blast/test.txt b/3party/zlib/contrib/blast/test.txt new file mode 100644 index 0000000000..bfdf1c5dca --- /dev/null +++ b/3party/zlib/contrib/blast/test.txt @@ -0,0 +1 @@ +AIAIAIAIAIAIA
\ No newline at end of file diff --git a/3party/zlib/contrib/delphi/ZLib.pas b/3party/zlib/contrib/delphi/ZLib.pas new file mode 100644 index 0000000000..0d86fb52fc --- /dev/null +++ b/3party/zlib/contrib/delphi/ZLib.pas @@ -0,0 +1,557 @@ +{*******************************************************} +{ } +{ Borland Delphi Supplemental Components } +{ ZLIB Data Compression Interface Unit } +{ } +{ Copyright (c) 1997,99 Borland Corporation } +{ } +{*******************************************************} + +{ Updated for zlib 1.2.x by Cosmin Truta <cosmint@cs.ubbcluj.ro> } + +unit ZLib; + +interface + +uses SysUtils, Classes; + +type + TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl; + TFree = procedure (AppData, Block: Pointer); cdecl; + + // Internal structure. Ignore. + TZStreamRec = packed record + next_in: PChar; // next input byte + avail_in: Integer; // number of bytes available at next_in + total_in: Longint; // total nb of input bytes read so far + + next_out: PChar; // next output byte should be put here + avail_out: Integer; // remaining free space at next_out + total_out: Longint; // total nb of bytes output so far + + msg: PChar; // last error message, NULL if no error + internal: Pointer; // not visible by applications + + zalloc: TAlloc; // used to allocate the internal state + zfree: TFree; // used to free the internal state + AppData: Pointer; // private data object passed to zalloc and zfree + + data_type: Integer; // best guess about the data type: ascii or binary + adler: Longint; // adler32 value of the uncompressed data + reserved: Longint; // reserved for future use + end; + + // Abstract ancestor class + TCustomZlibStream = class(TStream) + private + FStrm: TStream; + FStrmPos: Integer; + FOnProgress: TNotifyEvent; + FZRec: TZStreamRec; + FBuffer: array [Word] of Char; + protected + procedure Progress(Sender: TObject); dynamic; + property OnProgress: TNotifyEvent read FOnProgress write FOnProgress; + constructor Create(Strm: TStream); + end; + +{ TCompressionStream compresses data on the fly as data is written to it, and + stores the compressed data to another stream. + + TCompressionStream is write-only and strictly sequential. Reading from the + stream will raise an exception. Using Seek to move the stream pointer + will raise an exception. + + Output data is cached internally, written to the output stream only when + the internal output buffer is full. All pending output data is flushed + when the stream is destroyed. + + The Position property returns the number of uncompressed bytes of + data that have been written to the stream so far. + + CompressionRate returns the on-the-fly percentage by which the original + data has been compressed: (1 - (CompressedBytes / UncompressedBytes)) * 100 + If raw data size = 100 and compressed data size = 25, the CompressionRate + is 75% + + The OnProgress event is called each time the output buffer is filled and + written to the output stream. This is useful for updating a progress + indicator when you are writing a large chunk of data to the compression + stream in a single call.} + + + TCompressionLevel = (clNone, clFastest, clDefault, clMax); + + TCompressionStream = class(TCustomZlibStream) + private + function GetCompressionRate: Single; + public + constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream); + destructor Destroy; override; + function Read(var Buffer; Count: Longint): Longint; override; + function Write(const Buffer; Count: Longint): Longint; override; + function Seek(Offset: Longint; Origin: Word): Longint; override; + property CompressionRate: Single read GetCompressionRate; + property OnProgress; + end; + +{ TDecompressionStream decompresses data on the fly as data is read from it. + + Compressed data comes from a separate source stream. TDecompressionStream + is read-only and unidirectional; you can seek forward in the stream, but not + backwards. The special case of setting the stream position to zero is + allowed. Seeking forward decompresses data until the requested position in + the uncompressed data has been reached. Seeking backwards, seeking relative + to the end of the stream, requesting the size of the stream, and writing to + the stream will raise an exception. + + The Position property returns the number of bytes of uncompressed data that + have been read from the stream so far. + + The OnProgress event is called each time the internal input buffer of + compressed data is exhausted and the next block is read from the input stream. + This is useful for updating a progress indicator when you are reading a + large chunk of data from the decompression stream in a single call.} + + TDecompressionStream = class(TCustomZlibStream) + public + constructor Create(Source: TStream); + destructor Destroy; override; + function Read(var Buffer; Count: Longint): Longint; override; + function Write(const Buffer; Count: Longint): Longint; override; + function Seek(Offset: Longint; Origin: Word): Longint; override; + property OnProgress; + end; + + + +{ CompressBuf compresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + Out: OutBuf = ptr to newly allocated buffer containing decompressed data + OutBytes = number of bytes in OutBuf } +procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; + out OutBuf: Pointer; out OutBytes: Integer); + + +{ DecompressBuf decompresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + OutEstimate = zero, or est. size of the decompressed data + Out: OutBuf = ptr to newly allocated buffer containing decompressed data + OutBytes = number of bytes in OutBuf } +procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; + OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); + +{ DecompressToUserBuf decompresses data, buffer to buffer, in one call. + In: InBuf = ptr to compressed data + InBytes = number of bytes in InBuf + Out: OutBuf = ptr to user-allocated buffer to contain decompressed data + BufSize = number of bytes in OutBuf } +procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer; + const OutBuf: Pointer; BufSize: Integer); + +const + zlib_version = '1.2.5'; + +type + EZlibError = class(Exception); + ECompressionError = class(EZlibError); + EDecompressionError = class(EZlibError); + +implementation + +uses ZLibConst; + +const + Z_NO_FLUSH = 0; + Z_PARTIAL_FLUSH = 1; + Z_SYNC_FLUSH = 2; + Z_FULL_FLUSH = 3; + Z_FINISH = 4; + + Z_OK = 0; + Z_STREAM_END = 1; + Z_NEED_DICT = 2; + Z_ERRNO = (-1); + Z_STREAM_ERROR = (-2); + Z_DATA_ERROR = (-3); + Z_MEM_ERROR = (-4); + Z_BUF_ERROR = (-5); + Z_VERSION_ERROR = (-6); + + Z_NO_COMPRESSION = 0; + Z_BEST_SPEED = 1; + Z_BEST_COMPRESSION = 9; + Z_DEFAULT_COMPRESSION = (-1); + + Z_FILTERED = 1; + Z_HUFFMAN_ONLY = 2; + Z_RLE = 3; + Z_DEFAULT_STRATEGY = 0; + + Z_BINARY = 0; + Z_ASCII = 1; + Z_UNKNOWN = 2; + + Z_DEFLATED = 8; + + +{$L adler32.obj} +{$L compress.obj} +{$L crc32.obj} +{$L deflate.obj} +{$L infback.obj} +{$L inffast.obj} +{$L inflate.obj} +{$L inftrees.obj} +{$L trees.obj} +{$L uncompr.obj} +{$L zutil.obj} + +procedure adler32; external; +procedure compressBound; external; +procedure crc32; external; +procedure deflateInit2_; external; +procedure deflateParams; external; + +function _malloc(Size: Integer): Pointer; cdecl; +begin + Result := AllocMem(Size); +end; + +procedure _free(Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl; +begin + FillChar(P^, count, B); +end; + +procedure _memcpy(dest, source: Pointer; count: Integer); cdecl; +begin + Move(source^, dest^, count); +end; + + + +// deflate compresses data +function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar; + recsize: Integer): Integer; external; +function deflate(var strm: TZStreamRec; flush: Integer): Integer; external; +function deflateEnd(var strm: TZStreamRec): Integer; external; + +// inflate decompresses data +function inflateInit_(var strm: TZStreamRec; version: PChar; + recsize: Integer): Integer; external; +function inflate(var strm: TZStreamRec; flush: Integer): Integer; external; +function inflateEnd(var strm: TZStreamRec): Integer; external; +function inflateReset(var strm: TZStreamRec): Integer; external; + + +function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl; +begin +// GetMem(Result, Items*Size); + Result := AllocMem(Items * Size); +end; + +procedure zlibFreeMem(AppData, Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +{function zlibCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise EZlibError.Create('error'); //!! +end;} + +function CCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise ECompressionError.Create('error'); //!! +end; + +function DCheck(code: Integer): Integer; +begin + Result := code; + if code < 0 then + raise EDecompressionError.Create('error'); //!! +end; + +procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; + out OutBuf: Pointer; out OutBytes: Integer); +var + strm: TZStreamRec; + P: Pointer; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255; + GetMem(OutBuf, OutBytes); + try + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := OutBytes; + CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm))); + try + while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do + begin + P := OutBuf; + Inc(OutBytes, 256); + ReallocMem(OutBuf, OutBytes); + strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); + strm.avail_out := 256; + end; + finally + CCheck(deflateEnd(strm)); + end; + ReallocMem(OutBuf, strm.total_out); + OutBytes := strm.total_out; + except + FreeMem(OutBuf); + raise + end; +end; + + +procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; + OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); +var + strm: TZStreamRec; + P: Pointer; + BufInc: Integer; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + BufInc := (InBytes + 255) and not 255; + if OutEstimate = 0 then + OutBytes := BufInc + else + OutBytes := OutEstimate; + GetMem(OutBuf, OutBytes); + try + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := OutBytes; + DCheck(inflateInit_(strm, zlib_version, sizeof(strm))); + try + while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do + begin + P := OutBuf; + Inc(OutBytes, BufInc); + ReallocMem(OutBuf, OutBytes); + strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); + strm.avail_out := BufInc; + end; + finally + DCheck(inflateEnd(strm)); + end; + ReallocMem(OutBuf, strm.total_out); + OutBytes := strm.total_out; + except + FreeMem(OutBuf); + raise + end; +end; + +procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer; + const OutBuf: Pointer; BufSize: Integer); +var + strm: TZStreamRec; +begin + FillChar(strm, sizeof(strm), 0); + strm.zalloc := zlibAllocMem; + strm.zfree := zlibFreeMem; + strm.next_in := InBuf; + strm.avail_in := InBytes; + strm.next_out := OutBuf; + strm.avail_out := BufSize; + DCheck(inflateInit_(strm, zlib_version, sizeof(strm))); + try + if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then + raise EZlibError.CreateRes(@sTargetBufferTooSmall); + finally + DCheck(inflateEnd(strm)); + end; +end; + +// TCustomZlibStream + +constructor TCustomZLibStream.Create(Strm: TStream); +begin + inherited Create; + FStrm := Strm; + FStrmPos := Strm.Position; + FZRec.zalloc := zlibAllocMem; + FZRec.zfree := zlibFreeMem; +end; + +procedure TCustomZLibStream.Progress(Sender: TObject); +begin + if Assigned(FOnProgress) then FOnProgress(Sender); +end; + + +// TCompressionStream + +constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel; + Dest: TStream); +const + Levels: array [TCompressionLevel] of ShortInt = + (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION); +begin + inherited Create(Dest); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec))); +end; + +destructor TCompressionStream.Destroy; +begin + FZRec.next_in := nil; + FZRec.avail_in := 0; + try + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END) + and (FZRec.avail_out = 0) do + begin + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + end; + if FZRec.avail_out < sizeof(FBuffer) then + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out); + finally + deflateEnd(FZRec); + end; + inherited Destroy; +end; + +function TCompressionStream.Read(var Buffer; Count: Longint): Longint; +begin + raise ECompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TCompressionStream.Write(const Buffer; Count: Longint): Longint; +begin + FZRec.next_in := @Buffer; + FZRec.avail_in := Count; + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (FZRec.avail_in > 0) do + begin + CCheck(deflate(FZRec, 0)); + if FZRec.avail_out = 0 then + begin + FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); + FZRec.next_out := FBuffer; + FZRec.avail_out := sizeof(FBuffer); + FStrmPos := FStrm.Position; + Progress(Self); + end; + end; + Result := Count; +end; + +function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint; +begin + if (Offset = 0) and (Origin = soFromCurrent) then + Result := FZRec.total_in + else + raise ECompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TCompressionStream.GetCompressionRate: Single; +begin + if FZRec.total_in = 0 then + Result := 0 + else + Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0; +end; + + +// TDecompressionStream + +constructor TDecompressionStream.Create(Source: TStream); +begin + inherited Create(Source); + FZRec.next_in := FBuffer; + FZRec.avail_in := 0; + DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec))); +end; + +destructor TDecompressionStream.Destroy; +begin + FStrm.Seek(-FZRec.avail_in, 1); + inflateEnd(FZRec); + inherited Destroy; +end; + +function TDecompressionStream.Read(var Buffer; Count: Longint): Longint; +begin + FZRec.next_out := @Buffer; + FZRec.avail_out := Count; + if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; + while (FZRec.avail_out > 0) do + begin + if FZRec.avail_in = 0 then + begin + FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer)); + if FZRec.avail_in = 0 then + begin + Result := Count - FZRec.avail_out; + Exit; + end; + FZRec.next_in := FBuffer; + FStrmPos := FStrm.Position; + Progress(Self); + end; + CCheck(inflate(FZRec, 0)); + end; + Result := Count; +end; + +function TDecompressionStream.Write(const Buffer; Count: Longint): Longint; +begin + raise EDecompressionError.CreateRes(@sInvalidStreamOp); +end; + +function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint; +var + I: Integer; + Buf: array [0..4095] of Char; +begin + if (Offset = 0) and (Origin = soFromBeginning) then + begin + DCheck(inflateReset(FZRec)); + FZRec.next_in := FBuffer; + FZRec.avail_in := 0; + FStrm.Position := 0; + FStrmPos := 0; + end + else if ( (Offset >= 0) and (Origin = soFromCurrent)) or + ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then + begin + if Origin = soFromBeginning then Dec(Offset, FZRec.total_out); + if Offset > 0 then + begin + for I := 1 to Offset div sizeof(Buf) do + ReadBuffer(Buf, sizeof(Buf)); + ReadBuffer(Buf, Offset mod sizeof(Buf)); + end; + end + else + raise EDecompressionError.CreateRes(@sInvalidStreamOp); + Result := FZRec.total_out; +end; + + +end. diff --git a/3party/zlib/contrib/delphi/ZLibConst.pas b/3party/zlib/contrib/delphi/ZLibConst.pas new file mode 100644 index 0000000000..cdfe13671d --- /dev/null +++ b/3party/zlib/contrib/delphi/ZLibConst.pas @@ -0,0 +1,11 @@ +unit ZLibConst; + +interface + +resourcestring + sTargetBufferTooSmall = 'ZLib error: target buffer may be too small'; + sInvalidStreamOp = 'Invalid stream operation'; + +implementation + +end. diff --git a/3party/zlib/contrib/delphi/readme.txt b/3party/zlib/contrib/delphi/readme.txt new file mode 100644 index 0000000000..2dc9a8bba2 --- /dev/null +++ b/3party/zlib/contrib/delphi/readme.txt @@ -0,0 +1,76 @@ + +Overview +======== + +This directory contains an update to the ZLib interface unit, +distributed by Borland as a Delphi supplemental component. + +The original ZLib unit is Copyright (c) 1997,99 Borland Corp., +and is based on zlib version 1.0.4. There are a series of bugs +and security problems associated with that old zlib version, and +we recommend the users to update their ZLib unit. + + +Summary of modifications +======================== + +- Improved makefile, adapted to zlib version 1.2.1. + +- Some field types from TZStreamRec are changed from Integer to + Longint, for consistency with the zlib.h header, and for 64-bit + readiness. + +- The zlib_version constant is updated. + +- The new Z_RLE strategy has its corresponding symbolic constant. + +- The allocation and deallocation functions and function types + (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl, + and _malloc and _free are added as C RTL stubs. As a result, + the original C sources of zlib can be compiled out of the box, + and linked to the ZLib unit. + + +Suggestions for improvements +============================ + +Currently, the ZLib unit provides only a limited wrapper around +the zlib library, and much of the original zlib functionality is +missing. Handling compressed file formats like ZIP/GZIP or PNG +cannot be implemented without having this functionality. +Applications that handle these formats are either using their own, +duplicated code, or not using the ZLib unit at all. + +Here are a few suggestions: + +- Checksum class wrappers around adler32() and crc32(), similar + to the Java classes that implement the java.util.zip.Checksum + interface. + +- The ability to read and write raw deflate streams, without the + zlib stream header and trailer. Raw deflate streams are used + in the ZIP file format. + +- The ability to read and write gzip streams, used in the GZIP + file format, and normally produced by the gzip program. + +- The ability to select a different compression strategy, useful + to PNG and MNG image compression, and to multimedia compression + in general. Besides the compression level + + TCompressionLevel = (clNone, clFastest, clDefault, clMax); + + which, in fact, could have used the 'z' prefix and avoided + TColor-like symbols + + TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax); + + there could be a compression strategy + + TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle); + +- ZIP and GZIP stream handling via TStreams. + + +-- +Cosmin Truta <cosmint@cs.ubbcluj.ro> diff --git a/3party/zlib/contrib/delphi/zlibd32.mak b/3party/zlib/contrib/delphi/zlibd32.mak new file mode 100644 index 0000000000..0d0699a69a --- /dev/null +++ b/3party/zlib/contrib/delphi/zlibd32.mak @@ -0,0 +1,99 @@ +# Makefile for zlib +# For use with Delphi and C++ Builder under Win32 +# Updated for zlib 1.2.x by Cosmin Truta + +# ------------ Borland C++ ------------ + +# This project uses the Delphi (fastcall/register) calling convention: +LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl + +CC = bcc32 +LD = bcc32 +AR = tlib +# do not use "-pr" in CFLAGS +CFLAGS = -a -d -k- -O2 $(LOC) +LDFLAGS = + + +# variables +ZLIB_LIB = zlib.lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj +OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# For the sake of the old Borland make, +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + + +# cleanup +clean: + -del *.obj + -del *.exe + -del *.lib + -del *.tds + -del zlib.bak + -del foo.gz + diff --git a/3party/zlib/contrib/dotzlib/DotZLib.build b/3party/zlib/contrib/dotzlib/DotZLib.build new file mode 100644 index 0000000000..7f90d6bc7c --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib.build @@ -0,0 +1,33 @@ +<?xml version="1.0" encoding="utf-8" ?>
+<project name="DotZLib" default="build" basedir="./DotZLib">
+ <description>A .Net wrapper library around ZLib1.dll</description>
+
+ <property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
+ <property name="build.root" value="bin" />
+
+ <property name="debug" value="true" />
+ <property name="nunit" value="true" />
+
+ <property name="build.folder" value="${build.root}/debug/" if="${debug}" />
+ <property name="build.folder" value="${build.root}/release/" unless="${debug}" />
+
+ <target name="clean" description="Remove all generated files">
+ <delete dir="${build.root}" failonerror="false" />
+ </target>
+
+ <target name="build" description="compiles the source code">
+
+ <mkdir dir="${build.folder}" />
+ <csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
+ <references basedir="${nunit.location}">
+ <includes if="${nunit}" name="nunit.framework.dll" />
+ </references>
+ <sources>
+ <includes name="*.cs" />
+ <excludes name="UnitTests.cs" unless="${nunit}" />
+ </sources>
+ <arg value="/d:nunit" if="${nunit}" />
+ </csc>
+ </target>
+
+</project>
\ No newline at end of file diff --git a/3party/zlib/contrib/dotzlib/DotZLib.chm b/3party/zlib/contrib/dotzlib/DotZLib.chm Binary files differnew file mode 100644 index 0000000000..f214a444ae --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib.chm diff --git a/3party/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs b/3party/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs new file mode 100644 index 0000000000..0491bfc2b0 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs @@ -0,0 +1,58 @@ +using System.Reflection;
+using System.Runtime.CompilerServices;
+
+//
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+//
+[assembly: AssemblyTitle("DotZLib")]
+[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Henrik Ravn")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+//
+// Version information for an assembly consists of the following four values:
+//
+// Major Version
+// Minor Version
+// Build Number
+// Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers
+// by using the '*' as shown below:
+
+[assembly: AssemblyVersion("1.0.*")]
+
+//
+// In order to sign your assembly you must specify a key to use. Refer to the
+// Microsoft .NET Framework documentation for more information on assembly signing.
+//
+// Use the attributes below to control which key is used for signing.
+//
+// Notes:
+// (*) If no key is specified, the assembly is not signed.
+// (*) KeyName refers to a key that has been installed in the Crypto Service
+// Provider (CSP) on your machine. KeyFile refers to a file which contains
+// a key.
+// (*) If the KeyFile and the KeyName values are both specified, the
+// following processing occurs:
+// (1) If the KeyName can be found in the CSP, that key is used.
+// (2) If the KeyName does not exist and the KeyFile does exist, the key
+// in the KeyFile is installed into the CSP and used.
+// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
+// When specifying the KeyFile, the location of the KeyFile should be
+// relative to the project output directory which is
+// %Project Directory%\obj\<configuration>. For example, if your KeyFile is
+// located in the project directory, you would specify the AssemblyKeyFile
+// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
+// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
+// documentation for more information on this.
+//
+[assembly: AssemblyDelaySign(false)]
+[assembly: AssemblyKeyFile("")]
+[assembly: AssemblyKeyName("")]
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs b/3party/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs new file mode 100644 index 0000000000..788b2fcece --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs @@ -0,0 +1,202 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+ #region ChecksumGeneratorBase
+ /// <summary>
+ /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
+ /// </summary>
+ /// <example></example>
+ public abstract class ChecksumGeneratorBase : ChecksumGenerator
+ {
+ /// <summary>
+ /// The value of the current checksum
+ /// </summary>
+ protected uint _current;
+
+ /// <summary>
+ /// Initializes a new instance of the checksum generator base - the current checksum is
+ /// set to zero
+ /// </summary>
+ public ChecksumGeneratorBase()
+ {
+ _current = 0;
+ }
+
+ /// <summary>
+ /// Initializes a new instance of the checksum generator basewith a specified value
+ /// </summary>
+ /// <param name="initialValue">The value to set the current checksum to</param>
+ public ChecksumGeneratorBase(uint initialValue)
+ {
+ _current = initialValue;
+ }
+
+ /// <summary>
+ /// Resets the current checksum to zero
+ /// </summary>
+ public void Reset() { _current = 0; }
+
+ /// <summary>
+ /// Gets the current checksum value
+ /// </summary>
+ public uint Value { get { return _current; } }
+
+ /// <summary>
+ /// Updates the current checksum with part of an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ /// <param name="offset">Where in <c>data</c> to start updating</param>
+ /// <param name="count">The number of bytes from <c>data</c> to use</param>
+ /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+ /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+ /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+ /// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
+ /// This is therefore the only method a derived class has to implement</remarks>
+ public abstract void Update(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Updates the current checksum with an array of bytes.
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ public void Update(byte[] data)
+ {
+ Update(data, 0, data.Length);
+ }
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+ public void Update(string data)
+ {
+ Update(Encoding.UTF8.GetBytes(data));
+ }
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string, using a specific encoding
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <param name="encoding">The encoding to use</param>
+ public void Update(string data, Encoding encoding)
+ {
+ Update(encoding.GetBytes(data));
+ }
+
+ }
+ #endregion
+
+ #region CRC32
+ /// <summary>
+ /// Implements a CRC32 checksum generator
+ /// </summary>
+ public sealed class CRC32Checksum : ChecksumGeneratorBase
+ {
+ #region DLL imports
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern uint crc32(uint crc, int data, uint length);
+
+ #endregion
+
+ /// <summary>
+ /// Initializes a new instance of the CRC32 checksum generator
+ /// </summary>
+ public CRC32Checksum() : base() {}
+
+ /// <summary>
+ /// Initializes a new instance of the CRC32 checksum generator with a specified value
+ /// </summary>
+ /// <param name="initialValue">The value to set the current checksum to</param>
+ public CRC32Checksum(uint initialValue) : base(initialValue) {}
+
+ /// <summary>
+ /// Updates the current checksum with part of an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ /// <param name="offset">Where in <c>data</c> to start updating</param>
+ /// <param name="count">The number of bytes from <c>data</c> to use</param>
+ /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+ /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+ /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+ public override void Update(byte[] data, int offset, int count)
+ {
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > data.Length) throw new ArgumentException();
+ GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+ try
+ {
+ _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+ }
+ finally
+ {
+ hData.Free();
+ }
+ }
+
+ }
+ #endregion
+
+ #region Adler
+ /// <summary>
+ /// Implements a checksum generator that computes the Adler checksum on data
+ /// </summary>
+ public sealed class AdlerChecksum : ChecksumGeneratorBase
+ {
+ #region DLL imports
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern uint adler32(uint adler, int data, uint length);
+
+ #endregion
+
+ /// <summary>
+ /// Initializes a new instance of the Adler checksum generator
+ /// </summary>
+ public AdlerChecksum() : base() {}
+
+ /// <summary>
+ /// Initializes a new instance of the Adler checksum generator with a specified value
+ /// </summary>
+ /// <param name="initialValue">The value to set the current checksum to</param>
+ public AdlerChecksum(uint initialValue) : base(initialValue) {}
+
+ /// <summary>
+ /// Updates the current checksum with part of an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ /// <param name="offset">Where in <c>data</c> to start updating</param>
+ /// <param name="count">The number of bytes from <c>data</c> to use</param>
+ /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+ /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+ /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+ public override void Update(byte[] data, int offset, int count)
+ {
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > data.Length) throw new ArgumentException();
+ GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+ try
+ {
+ _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+ }
+ finally
+ {
+ hData.Free();
+ }
+ }
+
+ }
+ #endregion
+
+}
\ No newline at end of file diff --git a/3party/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs b/3party/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs new file mode 100644 index 0000000000..c1cab3a02c --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs @@ -0,0 +1,83 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+
+namespace DotZLib
+{
+
+ /// <summary>
+ /// This class implements a circular buffer
+ /// </summary>
+ internal class CircularBuffer
+ {
+ #region Private data
+ private int _capacity;
+ private int _head;
+ private int _tail;
+ private int _size;
+ private byte[] _buffer;
+ #endregion
+
+ public CircularBuffer(int capacity)
+ {
+ Debug.Assert( capacity > 0 );
+ _buffer = new byte[capacity];
+ _capacity = capacity;
+ _head = 0;
+ _tail = 0;
+ _size = 0;
+ }
+
+ public int Size { get { return _size; } }
+
+ public int Put(byte[] source, int offset, int count)
+ {
+ Debug.Assert( count > 0 );
+ int trueCount = Math.Min(count, _capacity - Size);
+ for (int i = 0; i < trueCount; ++i)
+ _buffer[(_tail+i) % _capacity] = source[offset+i];
+ _tail += trueCount;
+ _tail %= _capacity;
+ _size += trueCount;
+ return trueCount;
+ }
+
+ public bool Put(byte b)
+ {
+ if (Size == _capacity) // no room
+ return false;
+ _buffer[_tail++] = b;
+ _tail %= _capacity;
+ ++_size;
+ return true;
+ }
+
+ public int Get(byte[] destination, int offset, int count)
+ {
+ int trueCount = Math.Min(count,Size);
+ for (int i = 0; i < trueCount; ++i)
+ destination[offset + i] = _buffer[(_head+i) % _capacity];
+ _head += trueCount;
+ _head %= _capacity;
+ _size -= trueCount;
+ return trueCount;
+ }
+
+ public int Get()
+ {
+ if (Size == 0)
+ return -1;
+
+ int result = (int)_buffer[_head++ % _capacity];
+ --_size;
+ return result;
+ }
+
+ }
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/CodecBase.cs b/3party/zlib/contrib/dotzlib/DotZLib/CodecBase.cs new file mode 100644 index 0000000000..42e6da3a56 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/CodecBase.cs @@ -0,0 +1,198 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+ /// <summary>
+ /// Implements the common functionality needed for all <see cref="Codec"/>s
+ /// </summary>
+ public abstract class CodecBase : Codec, IDisposable
+ {
+
+ #region Data members
+
+ /// <summary>
+ /// Instance of the internal zlib buffer structure that is
+ /// passed to all functions in the zlib dll
+ /// </summary>
+ internal ZStream _ztream = new ZStream();
+
+ /// <summary>
+ /// True if the object instance has been disposed, false otherwise
+ /// </summary>
+ protected bool _isDisposed = false;
+
+ /// <summary>
+ /// The size of the internal buffers
+ /// </summary>
+ protected const int kBufferSize = 16384;
+
+ private byte[] _outBuffer = new byte[kBufferSize];
+ private byte[] _inBuffer = new byte[kBufferSize];
+
+ private GCHandle _hInput;
+ private GCHandle _hOutput;
+
+ private uint _checksum = 0;
+
+ #endregion
+
+ /// <summary>
+ /// Initializes a new instance of the <c>CodeBase</c> class.
+ /// </summary>
+ public CodecBase()
+ {
+ try
+ {
+ _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
+ _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
+ }
+ catch (Exception)
+ {
+ CleanUp(false);
+ throw;
+ }
+ }
+
+
+ #region Codec Members
+
+ /// <summary>
+ /// Occurs when more processed data are available.
+ /// </summary>
+ public event DataAvailableHandler DataAvailable;
+
+ /// <summary>
+ /// Fires the <see cref="DataAvailable"/> event
+ /// </summary>
+ protected void OnDataAvailable()
+ {
+ if (_ztream.total_out > 0)
+ {
+ if (DataAvailable != null)
+ DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
+ resetOutput();
+ }
+ }
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ public void Add(byte[] data)
+ {
+ Add(data,0,data.Length);
+ }
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+ /// <param name="count">The number of bytes to add</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ /// <remarks>This must be implemented by a derived class</remarks>
+ public abstract void Add(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Finishes up any pending data that needs to be processed and handled.
+ /// </summary>
+ /// <remarks>This must be implemented by a derived class</remarks>
+ public abstract void Finish();
+
+ /// <summary>
+ /// Gets the checksum of the data that has been added so far
+ /// </summary>
+ public uint Checksum { get { return _checksum; } }
+
+ #endregion
+
+ #region Destructor & IDisposable stuff
+
+ /// <summary>
+ /// Destroys this instance
+ /// </summary>
+ ~CodecBase()
+ {
+ CleanUp(false);
+ }
+
+ /// <summary>
+ /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
+ /// </summary>
+ public void Dispose()
+ {
+ CleanUp(true);
+ }
+
+ /// <summary>
+ /// Performs any codec specific cleanup
+ /// </summary>
+ /// <remarks>This must be implemented by a derived class</remarks>
+ protected abstract void CleanUp();
+
+ // performs the release of the handles and calls the dereived CleanUp()
+ private void CleanUp(bool isDisposing)
+ {
+ if (!_isDisposed)
+ {
+ CleanUp();
+ if (_hInput.IsAllocated)
+ _hInput.Free();
+ if (_hOutput.IsAllocated)
+ _hOutput.Free();
+
+ _isDisposed = true;
+ }
+ }
+
+
+ #endregion
+
+ #region Helper methods
+
+ /// <summary>
+ /// Copies a number of bytes to the internal codec buffer - ready for proccesing
+ /// </summary>
+ /// <param name="data">The byte array that contains the data to copy</param>
+ /// <param name="startIndex">The index of the first byte to copy</param>
+ /// <param name="count">The number of bytes to copy from <c>data</c></param>
+ protected void copyInput(byte[] data, int startIndex, int count)
+ {
+ Array.Copy(data, startIndex, _inBuffer,0, count);
+ _ztream.next_in = _hInput.AddrOfPinnedObject();
+ _ztream.total_in = 0;
+ _ztream.avail_in = (uint)count;
+
+ }
+
+ /// <summary>
+ /// Resets the internal output buffers to a known state - ready for processing
+ /// </summary>
+ protected void resetOutput()
+ {
+ _ztream.total_out = 0;
+ _ztream.avail_out = kBufferSize;
+ _ztream.next_out = _hOutput.AddrOfPinnedObject();
+ }
+
+ /// <summary>
+ /// Updates the running checksum property
+ /// </summary>
+ /// <param name="newSum">The new checksum value</param>
+ protected void setChecksum(uint newSum)
+ {
+ _checksum = newSum;
+ }
+ #endregion
+
+ }
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/Deflater.cs b/3party/zlib/contrib/dotzlib/DotZLib/Deflater.cs new file mode 100644 index 0000000000..c2477925b6 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/Deflater.cs @@ -0,0 +1,106 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+ /// <summary>
+ /// Implements a data compressor, using the deflate algorithm in the ZLib dll
+ /// </summary>
+ public sealed class Deflater : CodecBase
+ {
+ #region Dll imports
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+ private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int deflate(ref ZStream sz, int flush);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int deflateReset(ref ZStream sz);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int deflateEnd(ref ZStream sz);
+ #endregion
+
+ /// <summary>
+ /// Constructs an new instance of the <c>Deflater</c>
+ /// </summary>
+ /// <param name="level">The compression level to use for this <c>Deflater</c></param>
+ public Deflater(CompressLevel level) : base()
+ {
+ int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
+ if (retval != 0)
+ throw new ZLibException(retval, "Could not initialize deflater");
+
+ resetOutput();
+ }
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+ /// <param name="count">The number of bytes to add</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ public override void Add(byte[] data, int offset, int count)
+ {
+ if (data == null) throw new ArgumentNullException();
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > data.Length) throw new ArgumentException();
+
+ int total = count;
+ int inputIndex = offset;
+ int err = 0;
+
+ while (err >= 0 && inputIndex < total)
+ {
+ copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+ while (err >= 0 && _ztream.avail_in > 0)
+ {
+ err = deflate(ref _ztream, (int)FlushTypes.None);
+ if (err == 0)
+ while (_ztream.avail_out == 0)
+ {
+ OnDataAvailable();
+ err = deflate(ref _ztream, (int)FlushTypes.None);
+ }
+ inputIndex += (int)_ztream.total_in;
+ }
+ }
+ setChecksum( _ztream.adler );
+ }
+
+
+ /// <summary>
+ /// Finishes up any pending data that needs to be processed and handled.
+ /// </summary>
+ public override void Finish()
+ {
+ int err;
+ do
+ {
+ err = deflate(ref _ztream, (int)FlushTypes.Finish);
+ OnDataAvailable();
+ }
+ while (err == 0);
+ setChecksum( _ztream.adler );
+ deflateReset(ref _ztream);
+ resetOutput();
+ }
+
+ /// <summary>
+ /// Closes the internal zlib deflate stream
+ /// </summary>
+ protected override void CleanUp() { deflateEnd(ref _ztream); }
+
+ }
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.cs b/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.cs new file mode 100644 index 0000000000..be184b4c71 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.cs @@ -0,0 +1,288 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+
+ #region Internal types
+
+ /// <summary>
+ /// Defines constants for the various flush types used with zlib
+ /// </summary>
+ internal enum FlushTypes
+ {
+ None, Partial, Sync, Full, Finish, Block
+ }
+
+ #region ZStream structure
+ // internal mapping of the zlib zstream structure for marshalling
+ [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
+ internal struct ZStream
+ {
+ public IntPtr next_in;
+ public uint avail_in;
+ public uint total_in;
+
+ public IntPtr next_out;
+ public uint avail_out;
+ public uint total_out;
+
+ [MarshalAs(UnmanagedType.LPStr)]
+ string msg;
+ uint state;
+
+ uint zalloc;
+ uint zfree;
+ uint opaque;
+
+ int data_type;
+ public uint adler;
+ uint reserved;
+ }
+
+ #endregion
+
+ #endregion
+
+ #region Public enums
+ /// <summary>
+ /// Defines constants for the available compression levels in zlib
+ /// </summary>
+ public enum CompressLevel : int
+ {
+ /// <summary>
+ /// The default compression level with a reasonable compromise between compression and speed
+ /// </summary>
+ Default = -1,
+ /// <summary>
+ /// No compression at all. The data are passed straight through.
+ /// </summary>
+ None = 0,
+ /// <summary>
+ /// The maximum compression rate available.
+ /// </summary>
+ Best = 9,
+ /// <summary>
+ /// The fastest available compression level.
+ /// </summary>
+ Fastest = 1
+ }
+ #endregion
+
+ #region Exception classes
+ /// <summary>
+ /// The exception that is thrown when an error occurs on the zlib dll
+ /// </summary>
+ public class ZLibException : ApplicationException
+ {
+ /// <summary>
+ /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+ /// error message and error code
+ /// </summary>
+ /// <param name="errorCode">The zlib error code that caused the exception</param>
+ /// <param name="msg">A message that (hopefully) describes the error</param>
+ public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
+ {
+ }
+
+ /// <summary>
+ /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+ /// error code
+ /// </summary>
+ /// <param name="errorCode">The zlib error code that caused the exception</param>
+ public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
+ {
+ }
+ }
+ #endregion
+
+ #region Interfaces
+
+ /// <summary>
+ /// Declares methods and properties that enables a running checksum to be calculated
+ /// </summary>
+ public interface ChecksumGenerator
+ {
+ /// <summary>
+ /// Gets the current value of the checksum
+ /// </summary>
+ uint Value { get; }
+
+ /// <summary>
+ /// Clears the current checksum to 0
+ /// </summary>
+ void Reset();
+
+ /// <summary>
+ /// Updates the current checksum with an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ void Update(byte[] data);
+
+ /// <summary>
+ /// Updates the current checksum with part of an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ /// <param name="offset">Where in <c>data</c> to start updating</param>
+ /// <param name="count">The number of bytes from <c>data</c> to use</param>
+ /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+ /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
+ /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+ void Update(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+ void Update(string data);
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string, using a specific encoding
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <param name="encoding">The encoding to use</param>
+ void Update(string data, Encoding encoding);
+ }
+
+
+ /// <summary>
+ /// Represents the method that will be called from a codec when new data
+ /// are available.
+ /// </summary>
+ /// <paramref name="data">The byte array containing the processed data</paramref>
+ /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
+ /// <paramref name="count">The number of processed bytes available</paramref>
+ /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
+ /// You cannot assume that startIndex will be zero.
+ /// </remarks>
+ public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
+
+ /// <summary>
+ /// Declares methods and events for implementing compressors/decompressors
+ /// </summary>
+ public interface Codec
+ {
+ /// <summary>
+ /// Occurs when more processed data are available.
+ /// </summary>
+ event DataAvailableHandler DataAvailable;
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ void Add(byte[] data);
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+ /// <param name="count">The number of bytes to add</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ void Add(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Finishes up any pending data that needs to be processed and handled.
+ /// </summary>
+ void Finish();
+
+ /// <summary>
+ /// Gets the checksum of the data that has been added so far
+ /// </summary>
+ uint Checksum { get; }
+
+
+ }
+
+ #endregion
+
+ #region Classes
+ /// <summary>
+ /// Encapsulates general information about the ZLib library
+ /// </summary>
+ public class Info
+ {
+ #region DLL imports
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern uint zlibCompileFlags();
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern string zlibVersion();
+ #endregion
+
+ #region Private stuff
+ private uint _flags;
+
+ // helper function that unpacks a bitsize mask
+ private static int bitSize(uint bits)
+ {
+ switch (bits)
+ {
+ case 0: return 16;
+ case 1: return 32;
+ case 2: return 64;
+ }
+ return -1;
+ }
+ #endregion
+
+ /// <summary>
+ /// Constructs an instance of the <c>Info</c> class.
+ /// </summary>
+ public Info()
+ {
+ _flags = zlibCompileFlags();
+ }
+
+ /// <summary>
+ /// True if the library is compiled with debug info
+ /// </summary>
+ public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
+
+ /// <summary>
+ /// True if the library is compiled with assembly optimizations
+ /// </summary>
+ public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
+
+ /// <summary>
+ /// Gets the size of the unsigned int that was compiled into Zlib
+ /// </summary>
+ public int SizeOfUInt { get { return bitSize(_flags & 3); } }
+
+ /// <summary>
+ /// Gets the size of the unsigned long that was compiled into Zlib
+ /// </summary>
+ public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
+
+ /// <summary>
+ /// Gets the size of the pointers that were compiled into Zlib
+ /// </summary>
+ public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
+
+ /// <summary>
+ /// Gets the size of the z_off_t type that was compiled into Zlib
+ /// </summary>
+ public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
+
+ /// <summary>
+ /// Gets the version of ZLib as a string, e.g. "1.2.1"
+ /// </summary>
+ public static string Version { get { return zlibVersion(); } }
+ }
+
+ #endregion
+
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj b/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj new file mode 100644 index 0000000000..71eeb8590a --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj @@ -0,0 +1,141 @@ +<VisualStudioProject>
+ <CSHARP
+ ProjectType = "Local"
+ ProductVersion = "7.10.3077"
+ SchemaVersion = "2.0"
+ ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+ >
+ <Build>
+ <Settings
+ ApplicationIcon = ""
+ AssemblyKeyContainerName = ""
+ AssemblyName = "DotZLib"
+ AssemblyOriginatorKeyFile = ""
+ DefaultClientScript = "JScript"
+ DefaultHTMLPageLayout = "Grid"
+ DefaultTargetSchema = "IE50"
+ DelaySign = "false"
+ OutputType = "Library"
+ PreBuildEvent = ""
+ PostBuildEvent = ""
+ RootNamespace = "DotZLib"
+ RunPostBuildEvent = "OnBuildSuccess"
+ StartupObject = ""
+ >
+ <Config
+ Name = "Debug"
+ AllowUnsafeBlocks = "false"
+ BaseAddress = "285212672"
+ CheckForOverflowUnderflow = "false"
+ ConfigurationOverrideFile = ""
+ DefineConstants = "DEBUG;TRACE"
+ DocumentationFile = "docs\DotZLib.xml"
+ DebugSymbols = "true"
+ FileAlignment = "4096"
+ IncrementalBuild = "false"
+ NoStdLib = "false"
+ NoWarn = "1591"
+ Optimize = "false"
+ OutputPath = "bin\Debug\"
+ RegisterForComInterop = "false"
+ RemoveIntegerChecks = "false"
+ TreatWarningsAsErrors = "false"
+ WarningLevel = "4"
+ />
+ <Config
+ Name = "Release"
+ AllowUnsafeBlocks = "false"
+ BaseAddress = "285212672"
+ CheckForOverflowUnderflow = "false"
+ ConfigurationOverrideFile = ""
+ DefineConstants = "TRACE"
+ DocumentationFile = "docs\DotZLib.xml"
+ DebugSymbols = "false"
+ FileAlignment = "4096"
+ IncrementalBuild = "false"
+ NoStdLib = "false"
+ NoWarn = ""
+ Optimize = "true"
+ OutputPath = "bin\Release\"
+ RegisterForComInterop = "false"
+ RemoveIntegerChecks = "false"
+ TreatWarningsAsErrors = "false"
+ WarningLevel = "4"
+ />
+ </Settings>
+ <References>
+ <Reference
+ Name = "System"
+ AssemblyName = "System"
+ HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"
+ />
+ <Reference
+ Name = "System.Data"
+ AssemblyName = "System.Data"
+ HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"
+ />
+ <Reference
+ Name = "System.XML"
+ AssemblyName = "System.Xml"
+ HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"
+ />
+ <Reference
+ Name = "nunit.framework"
+ AssemblyName = "nunit.framework"
+ HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"
+ AssemblyFolderKey = "hklm\dn\nunit.framework"
+ />
+ </References>
+ </Build>
+ <Files>
+ <Include>
+ <File
+ RelPath = "AssemblyInfo.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "ChecksumImpl.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "CircularBuffer.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "CodecBase.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "Deflater.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "DotZLib.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "GZipStream.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "Inflater.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ <File
+ RelPath = "UnitTests.cs"
+ SubType = "Code"
+ BuildAction = "Compile"
+ />
+ </Include>
+ </Files>
+ </CSHARP>
+</VisualStudioProject>
+
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/GZipStream.cs b/3party/zlib/contrib/dotzlib/DotZLib/GZipStream.cs new file mode 100644 index 0000000000..b161300b18 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/GZipStream.cs @@ -0,0 +1,301 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+ /// <summary>
+ /// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
+ /// </summary>
+ public class GZipStream : Stream, IDisposable
+ {
+ #region Dll Imports
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+ private static extern IntPtr gzopen(string name, string mode);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int gzclose(IntPtr gzFile);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int gzwrite(IntPtr gzFile, int data, int length);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int gzread(IntPtr gzFile, int data, int length);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int gzgetc(IntPtr gzFile);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int gzputc(IntPtr gzFile, int c);
+
+ #endregion
+
+ #region Private data
+ private IntPtr _gzFile;
+ private bool _isDisposed = false;
+ private bool _isWriting;
+ #endregion
+
+ #region Constructors
+ /// <summary>
+ /// Creates a new file as a writeable GZipStream
+ /// </summary>
+ /// <param name="fileName">The name of the compressed file to create</param>
+ /// <param name="level">The compression level to use when adding data</param>
+ /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+ public GZipStream(string fileName, CompressLevel level)
+ {
+ _isWriting = true;
+ _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
+ if (_gzFile == IntPtr.Zero)
+ throw new ZLibException(-1, "Could not open " + fileName);
+ }
+
+ /// <summary>
+ /// Opens an existing file as a readable GZipStream
+ /// </summary>
+ /// <param name="fileName">The name of the file to open</param>
+ /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+ public GZipStream(string fileName)
+ {
+ _isWriting = false;
+ _gzFile = gzopen(fileName, "rb");
+ if (_gzFile == IntPtr.Zero)
+ throw new ZLibException(-1, "Could not open " + fileName);
+
+ }
+ #endregion
+
+ #region Access properties
+ /// <summary>
+ /// Returns true of this stream can be read from, false otherwise
+ /// </summary>
+ public override bool CanRead
+ {
+ get
+ {
+ return !_isWriting;
+ }
+ }
+
+
+ /// <summary>
+ /// Returns false.
+ /// </summary>
+ public override bool CanSeek
+ {
+ get
+ {
+ return false;
+ }
+ }
+
+ /// <summary>
+ /// Returns true if this tsream is writeable, false otherwise
+ /// </summary>
+ public override bool CanWrite
+ {
+ get
+ {
+ return _isWriting;
+ }
+ }
+ #endregion
+
+ #region Destructor & IDispose stuff
+
+ /// <summary>
+ /// Destroys this instance
+ /// </summary>
+ ~GZipStream()
+ {
+ cleanUp(false);
+ }
+
+ /// <summary>
+ /// Closes the external file handle
+ /// </summary>
+ public void Dispose()
+ {
+ cleanUp(true);
+ }
+
+ // Does the actual closing of the file handle.
+ private void cleanUp(bool isDisposing)
+ {
+ if (!_isDisposed)
+ {
+ gzclose(_gzFile);
+ _isDisposed = true;
+ }
+ }
+ #endregion
+
+ #region Basic reading and writing
+ /// <summary>
+ /// Attempts to read a number of bytes from the stream.
+ /// </summary>
+ /// <param name="buffer">The destination data buffer</param>
+ /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
+ /// <param name="count">The number of bytes requested</param>
+ /// <returns>The number of bytes read</returns>
+ /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+ /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+ /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is > buffer.Length</exception>
+ /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
+ /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+ public override int Read(byte[] buffer, int offset, int count)
+ {
+ if (!CanRead) throw new NotSupportedException();
+ if (buffer == null) throw new ArgumentNullException();
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > buffer.Length) throw new ArgumentException();
+ if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+ GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+ int result;
+ try
+ {
+ result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+ if (result < 0)
+ throw new IOException();
+ }
+ finally
+ {
+ h.Free();
+ }
+ return result;
+ }
+
+ /// <summary>
+ /// Attempts to read a single byte from the stream.
+ /// </summary>
+ /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
+ public override int ReadByte()
+ {
+ if (!CanRead) throw new NotSupportedException();
+ if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+ return gzgetc(_gzFile);
+ }
+
+ /// <summary>
+ /// Writes a number of bytes to the stream
+ /// </summary>
+ /// <param name="buffer"></param>
+ /// <param name="offset"></param>
+ /// <param name="count"></param>
+ /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+ /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+ /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is > buffer.Length</exception>
+ /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+ /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+ public override void Write(byte[] buffer, int offset, int count)
+ {
+ if (!CanWrite) throw new NotSupportedException();
+ if (buffer == null) throw new ArgumentNullException();
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > buffer.Length) throw new ArgumentException();
+ if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+ GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+ try
+ {
+ int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+ if (result < 0)
+ throw new IOException();
+ }
+ finally
+ {
+ h.Free();
+ }
+ }
+
+ /// <summary>
+ /// Writes a single byte to the stream
+ /// </summary>
+ /// <param name="value">The byte to add to the stream.</param>
+ /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+ /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+ public override void WriteByte(byte value)
+ {
+ if (!CanWrite) throw new NotSupportedException();
+ if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+ int result = gzputc(_gzFile, (int)value);
+ if (result < 0)
+ throw new IOException();
+ }
+ #endregion
+
+ #region Position & length stuff
+ /// <summary>
+ /// Not supported.
+ /// </summary>
+ /// <param name="value"></param>
+ /// <exception cref="NotSupportedException">Always thrown</exception>
+ public override void SetLength(long value)
+ {
+ throw new NotSupportedException();
+ }
+
+ /// <summary>
+ /// Not suppported.
+ /// </summary>
+ /// <param name="offset"></param>
+ /// <param name="origin"></param>
+ /// <returns></returns>
+ /// <exception cref="NotSupportedException">Always thrown</exception>
+ public override long Seek(long offset, SeekOrigin origin)
+ {
+ throw new NotSupportedException();
+ }
+
+ /// <summary>
+ /// Flushes the <c>GZipStream</c>.
+ /// </summary>
+ /// <remarks>In this implementation, this method does nothing. This is because excessive
+ /// flushing may degrade the achievable compression rates.</remarks>
+ public override void Flush()
+ {
+ // left empty on purpose
+ }
+
+ /// <summary>
+ /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
+ /// </summary>
+ /// <remarks>In this implementation this property is not supported</remarks>
+ /// <exception cref="NotSupportedException">Always thrown</exception>
+ public override long Position
+ {
+ get
+ {
+ throw new NotSupportedException();
+ }
+ set
+ {
+ throw new NotSupportedException();
+ }
+ }
+
+ /// <summary>
+ /// Gets the size of the stream. Not suppported.
+ /// </summary>
+ /// <remarks>In this implementation this property is not supported</remarks>
+ /// <exception cref="NotSupportedException">Always thrown</exception>
+ public override long Length
+ {
+ get
+ {
+ throw new NotSupportedException();
+ }
+ }
+ #endregion
+ }
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/Inflater.cs b/3party/zlib/contrib/dotzlib/DotZLib/Inflater.cs new file mode 100644 index 0000000000..8ed5451d66 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/Inflater.cs @@ -0,0 +1,105 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+ /// <summary>
+ /// Implements a data decompressor, using the inflate algorithm in the ZLib dll
+ /// </summary>
+ public class Inflater : CodecBase
+ {
+ #region Dll imports
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+ private static extern int inflateInit_(ref ZStream sz, string vs, int size);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int inflate(ref ZStream sz, int flush);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int inflateReset(ref ZStream sz);
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern int inflateEnd(ref ZStream sz);
+ #endregion
+
+ /// <summary>
+ /// Constructs an new instance of the <c>Inflater</c>
+ /// </summary>
+ public Inflater() : base()
+ {
+ int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
+ if (retval != 0)
+ throw new ZLibException(retval, "Could not initialize inflater");
+
+ resetOutput();
+ }
+
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+ /// <param name="count">The number of bytes to add</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ public override void Add(byte[] data, int offset, int count)
+ {
+ if (data == null) throw new ArgumentNullException();
+ if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+ if ((offset+count) > data.Length) throw new ArgumentException();
+
+ int total = count;
+ int inputIndex = offset;
+ int err = 0;
+
+ while (err >= 0 && inputIndex < total)
+ {
+ copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+ err = inflate(ref _ztream, (int)FlushTypes.None);
+ if (err == 0)
+ while (_ztream.avail_out == 0)
+ {
+ OnDataAvailable();
+ err = inflate(ref _ztream, (int)FlushTypes.None);
+ }
+
+ inputIndex += (int)_ztream.total_in;
+ }
+ setChecksum( _ztream.adler );
+ }
+
+
+ /// <summary>
+ /// Finishes up any pending data that needs to be processed and handled.
+ /// </summary>
+ public override void Finish()
+ {
+ int err;
+ do
+ {
+ err = inflate(ref _ztream, (int)FlushTypes.Finish);
+ OnDataAvailable();
+ }
+ while (err == 0);
+ setChecksum( _ztream.adler );
+ inflateReset(ref _ztream);
+ resetOutput();
+ }
+
+ /// <summary>
+ /// Closes the internal zlib inflate stream
+ /// </summary>
+ protected override void CleanUp() { inflateEnd(ref _ztream); }
+
+
+ }
+}
diff --git a/3party/zlib/contrib/dotzlib/DotZLib/UnitTests.cs b/3party/zlib/contrib/dotzlib/DotZLib/UnitTests.cs new file mode 100644 index 0000000000..3bbcc8cee6 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/DotZLib/UnitTests.cs @@ -0,0 +1,274 @@ +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Collections;
+using System.IO;
+
+// uncomment the define below to include unit tests
+//#define nunit
+#if nunit
+using NUnit.Framework;
+
+// Unit tests for the DotZLib class library
+// ----------------------------------------
+//
+// Use this with NUnit 2 from http://www.nunit.org
+//
+
+namespace DotZLibTests
+{
+ using DotZLib;
+
+ // helper methods
+ internal class Utils
+ {
+ public static bool byteArrEqual( byte[] lhs, byte[] rhs )
+ {
+ if (lhs.Length != rhs.Length)
+ return false;
+ for (int i = lhs.Length-1; i >= 0; --i)
+ if (lhs[i] != rhs[i])
+ return false;
+ return true;
+ }
+
+ }
+
+
+ [TestFixture]
+ public class CircBufferTests
+ {
+ #region Circular buffer tests
+ [Test]
+ public void SinglePutGet()
+ {
+ CircularBuffer buf = new CircularBuffer(10);
+ Assert.AreEqual( 0, buf.Size );
+ Assert.AreEqual( -1, buf.Get() );
+
+ Assert.IsTrue(buf.Put( 1 ));
+ Assert.AreEqual( 1, buf.Size );
+ Assert.AreEqual( 1, buf.Get() );
+ Assert.AreEqual( 0, buf.Size );
+ Assert.AreEqual( -1, buf.Get() );
+ }
+
+ [Test]
+ public void BlockPutGet()
+ {
+ CircularBuffer buf = new CircularBuffer(10);
+ byte[] arr = {1,2,3,4,5,6,7,8,9,10};
+ Assert.AreEqual( 10, buf.Put(arr,0,10) );
+ Assert.AreEqual( 10, buf.Size );
+ Assert.IsFalse( buf.Put(11) );
+ Assert.AreEqual( 1, buf.Get() );
+ Assert.IsTrue( buf.Put(11) );
+
+ byte[] arr2 = (byte[])arr.Clone();
+ Assert.AreEqual( 9, buf.Get(arr2,1,9) );
+ Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
+ }
+
+ #endregion
+ }
+
+ [TestFixture]
+ public class ChecksumTests
+ {
+ #region CRC32 Tests
+ [Test]
+ public void CRC32_Null()
+ {
+ CRC32Checksum crc32 = new CRC32Checksum();
+ Assert.AreEqual( 0, crc32.Value );
+
+ crc32 = new CRC32Checksum(1);
+ Assert.AreEqual( 1, crc32.Value );
+
+ crc32 = new CRC32Checksum(556);
+ Assert.AreEqual( 556, crc32.Value );
+ }
+
+ [Test]
+ public void CRC32_Data()
+ {
+ CRC32Checksum crc32 = new CRC32Checksum();
+ byte[] data = { 1,2,3,4,5,6,7 };
+ crc32.Update(data);
+ Assert.AreEqual( 0x70e46888, crc32.Value );
+
+ crc32 = new CRC32Checksum();
+ crc32.Update("penguin");
+ Assert.AreEqual( 0x0e5c1a120, crc32.Value );
+
+ crc32 = new CRC32Checksum(1);
+ crc32.Update("penguin");
+ Assert.AreEqual(0x43b6aa94, crc32.Value);
+
+ }
+ #endregion
+
+ #region Adler tests
+
+ [Test]
+ public void Adler_Null()
+ {
+ AdlerChecksum adler = new AdlerChecksum();
+ Assert.AreEqual(0, adler.Value);
+
+ adler = new AdlerChecksum(1);
+ Assert.AreEqual( 1, adler.Value );
+
+ adler = new AdlerChecksum(556);
+ Assert.AreEqual( 556, adler.Value );
+ }
+
+ [Test]
+ public void Adler_Data()
+ {
+ AdlerChecksum adler = new AdlerChecksum(1);
+ byte[] data = { 1,2,3,4,5,6,7 };
+ adler.Update(data);
+ Assert.AreEqual( 0x5b001d, adler.Value );
+
+ adler = new AdlerChecksum();
+ adler.Update("penguin");
+ Assert.AreEqual(0x0bcf02f6, adler.Value );
+
+ adler = new AdlerChecksum(1);
+ adler.Update("penguin");
+ Assert.AreEqual(0x0bd602f7, adler.Value);
+
+ }
+ #endregion
+ }
+
+ [TestFixture]
+ public class InfoTests
+ {
+ #region Info tests
+ [Test]
+ public void Info_Version()
+ {
+ Info info = new Info();
+ Assert.AreEqual("1.2.5", Info.Version);
+ Assert.AreEqual(32, info.SizeOfUInt);
+ Assert.AreEqual(32, info.SizeOfULong);
+ Assert.AreEqual(32, info.SizeOfPointer);
+ Assert.AreEqual(32, info.SizeOfOffset);
+ }
+ #endregion
+ }
+
+ [TestFixture]
+ public class DeflateInflateTests
+ {
+ #region Deflate tests
+ [Test]
+ public void Deflate_Init()
+ {
+ using (Deflater def = new Deflater(CompressLevel.Default))
+ {
+ }
+ }
+
+ private ArrayList compressedData = new ArrayList();
+ private uint adler1;
+
+ private ArrayList uncompressedData = new ArrayList();
+ private uint adler2;
+
+ public void CDataAvail(byte[] data, int startIndex, int count)
+ {
+ for (int i = 0; i < count; ++i)
+ compressedData.Add(data[i+startIndex]);
+ }
+
+ [Test]
+ public void Deflate_Compress()
+ {
+ compressedData.Clear();
+
+ byte[] testData = new byte[35000];
+ for (int i = 0; i < testData.Length; ++i)
+ testData[i] = 5;
+
+ using (Deflater def = new Deflater((CompressLevel)5))
+ {
+ def.DataAvailable += new DataAvailableHandler(CDataAvail);
+ def.Add(testData);
+ def.Finish();
+ adler1 = def.Checksum;
+ }
+ }
+ #endregion
+
+ #region Inflate tests
+ [Test]
+ public void Inflate_Init()
+ {
+ using (Inflater inf = new Inflater())
+ {
+ }
+ }
+
+ private void DDataAvail(byte[] data, int startIndex, int count)
+ {
+ for (int i = 0; i < count; ++i)
+ uncompressedData.Add(data[i+startIndex]);
+ }
+
+ [Test]
+ public void Inflate_Expand()
+ {
+ uncompressedData.Clear();
+
+ using (Inflater inf = new Inflater())
+ {
+ inf.DataAvailable += new DataAvailableHandler(DDataAvail);
+ inf.Add((byte[])compressedData.ToArray(typeof(byte)));
+ inf.Finish();
+ adler2 = inf.Checksum;
+ }
+ Assert.AreEqual( adler1, adler2 );
+ }
+ #endregion
+ }
+
+ [TestFixture]
+ public class GZipStreamTests
+ {
+ #region GZipStream test
+ [Test]
+ public void GZipStream_WriteRead()
+ {
+ using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
+ {
+ BinaryWriter writer = new BinaryWriter(gzOut);
+ writer.Write("hi there");
+ writer.Write(Math.PI);
+ writer.Write(42);
+ }
+
+ using (GZipStream gzIn = new GZipStream("gzstream.gz"))
+ {
+ BinaryReader reader = new BinaryReader(gzIn);
+ string s = reader.ReadString();
+ Assert.AreEqual("hi there",s);
+ double d = reader.ReadDouble();
+ Assert.AreEqual(Math.PI, d);
+ int i = reader.ReadInt32();
+ Assert.AreEqual(42,i);
+ }
+
+ }
+ #endregion
+ }
+}
+
+#endif
diff --git a/3party/zlib/contrib/dotzlib/LICENSE_1_0.txt b/3party/zlib/contrib/dotzlib/LICENSE_1_0.txt new file mode 100644 index 0000000000..30aac2cf47 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/LICENSE_1_0.txt @@ -0,0 +1,23 @@ +Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
\ No newline at end of file diff --git a/3party/zlib/contrib/dotzlib/readme.txt b/3party/zlib/contrib/dotzlib/readme.txt new file mode 100644 index 0000000000..b2395720d4 --- /dev/null +++ b/3party/zlib/contrib/dotzlib/readme.txt @@ -0,0 +1,58 @@ +This directory contains a .Net wrapper class library for the ZLib1.dll
+
+The wrapper includes support for inflating/deflating memory buffers,
+.Net streaming wrappers for the gz streams part of zlib, and wrappers
+for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
+
+Directory structure:
+--------------------
+
+LICENSE_1_0.txt - License file.
+readme.txt - This file.
+DotZLib.chm - Class library documentation
+DotZLib.build - NAnt build file
+DotZLib.sln - Microsoft Visual Studio 2003 solution file
+
+DotZLib\*.cs - Source files for the class library
+
+Unit tests:
+-----------
+The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
+To include unit tests in the build, define nunit before building.
+
+
+Build instructions:
+-------------------
+
+1. Using Visual Studio.Net 2003:
+ Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
+ will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
+ you are building the release or debug version of the library. Check
+ DotZLib/UnitTests.cs for instructions on how to include unit tests in the
+ build.
+
+2. Using NAnt:
+ Open a command prompt with access to the build environment and run nant
+ in the same directory as the DotZLib.build file.
+ You can define 2 properties on the nant command-line to control the build:
+ debug={true|false} to toggle between release/debug builds (default=true).
+ nunit={true|false} to include or esclude unit tests (default=true).
+ Also the target clean will remove binaries.
+ Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
+ or ./DotZLib/bin/debug, depending on whether you are building the release
+ or debug version of the library.
+
+ Examples:
+ nant -D:debug=false -D:nunit=false
+ will build a release mode version of the library without unit tests.
+ nant
+ will build a debug version of the library with unit tests
+ nant clean
+ will remove all previously built files.
+
+
+---------------------------------
+Copyright (c) Henrik Ravn 2004
+
+Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/3party/zlib/contrib/gcc_gvmat64/gvmat64.S b/3party/zlib/contrib/gcc_gvmat64/gvmat64.S new file mode 100644 index 0000000000..dd858ddbd1 --- /dev/null +++ b/3party/zlib/contrib/gcc_gvmat64/gvmat64.S @@ -0,0 +1,574 @@ +/*
+;uInt longest_match_x64(
+; deflate_state *s,
+; IPos cur_match); // current match
+
+; gvmat64.S -- Asm portion of the optimized longest_match for 32 bits x86_64
+; (AMD64 on Athlon 64, Opteron, Phenom
+; and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
+; this file is translation from gvmat64.asm to GCC 4.x (for Linux, Mac XCode)
+; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+;
+; File written by Gilles Vollant, by converting to assembly the longest_match
+; from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
+; and by taking inspiration on asm686 with masm, optimised assembly code
+; from Brian Raiter, written 1998
+;
+; This software is provided 'as-is', without any express or implied
+; warranty. In no event will the authors be held liable for any damages
+; arising from the use of this software.
+;
+; Permission is granted to anyone to use this software for any purpose,
+; including commercial applications, and to alter it and redistribute it
+; freely, subject to the following restrictions:
+;
+; 1. The origin of this software must not be misrepresented; you must not
+; claim that you wrote the original software. If you use this software
+; in a product, an acknowledgment in the product documentation would be
+; appreciated but is not required.
+; 2. Altered source versions must be plainly marked as such, and must not be
+; misrepresented as being the original software
+; 3. This notice may not be removed or altered from any source distribution.
+;
+; http://www.zlib.net
+; http://www.winimage.com/zLibDll
+; http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; to compile this file for zLib, I use option:
+; gcc -c -arch x86_64 gvmat64.S
+
+
+;uInt longest_match(s, cur_match)
+; deflate_state *s;
+; IPos cur_match; // current match /
+;
+; with XCode for Mac, I had strange error with some jump on intel syntax
+; this is why BEFORE_JMP and AFTER_JMP are used
+ */
+
+
+#define BEFORE_JMP .att_syntax
+#define AFTER_JMP .intel_syntax noprefix
+
+#ifndef NO_UNDERLINE
+# define match_init _match_init
+# define longest_match _longest_match
+#endif
+
+.intel_syntax noprefix
+
+.globl match_init, longest_match
+.text
+longest_match:
+
+
+
+#define LocalVarsSize 96
+/*
+; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
+; free register : r14,r15
+; register can be saved : rsp
+*/
+
+#define chainlenwmask (rsp + 8 - LocalVarsSize)
+#define nicematch (rsp + 16 - LocalVarsSize)
+
+#define save_rdi (rsp + 24 - LocalVarsSize)
+#define save_rsi (rsp + 32 - LocalVarsSize)
+#define save_rbx (rsp + 40 - LocalVarsSize)
+#define save_rbp (rsp + 48 - LocalVarsSize)
+#define save_r12 (rsp + 56 - LocalVarsSize)
+#define save_r13 (rsp + 64 - LocalVarsSize)
+#define save_r14 (rsp + 72 - LocalVarsSize)
+#define save_r15 (rsp + 80 - LocalVarsSize)
+
+
+/*
+; all the +4 offsets are due to the addition of pending_buf_size (in zlib
+; in the deflate_state structure since the asm code was first written
+; (if you compile with zlib 1.0.4 or older, remove the +4).
+; Note : these value are good with a 8 bytes boundary pack structure
+*/
+
+#define MAX_MATCH 258
+#define MIN_MATCH 3
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+
+/*
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+; all the +zlib1222add offsets are due to the addition of fields
+; in zlib in the deflate_state structure since the asm code was first written
+; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+*/
+
+
+
+/* you can check the structure offset by running
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "deflate.h"
+
+void print_depl()
+{
+deflate_state ds;
+deflate_state *s=&ds;
+printf("size pointer=%u\n",(int)sizeof(void*));
+
+printf("#define dsWSize %u\n",(int)(((char*)&(s->w_size))-((char*)s)));
+printf("#define dsWMask %u\n",(int)(((char*)&(s->w_mask))-((char*)s)));
+printf("#define dsWindow %u\n",(int)(((char*)&(s->window))-((char*)s)));
+printf("#define dsPrev %u\n",(int)(((char*)&(s->prev))-((char*)s)));
+printf("#define dsMatchLen %u\n",(int)(((char*)&(s->match_length))-((char*)s)));
+printf("#define dsPrevMatch %u\n",(int)(((char*)&(s->prev_match))-((char*)s)));
+printf("#define dsStrStart %u\n",(int)(((char*)&(s->strstart))-((char*)s)));
+printf("#define dsMatchStart %u\n",(int)(((char*)&(s->match_start))-((char*)s)));
+printf("#define dsLookahead %u\n",(int)(((char*)&(s->lookahead))-((char*)s)));
+printf("#define dsPrevLen %u\n",(int)(((char*)&(s->prev_length))-((char*)s)));
+printf("#define dsMaxChainLen %u\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
+printf("#define dsGoodMatch %u\n",(int)(((char*)&(s->good_match))-((char*)s)));
+printf("#define dsNiceMatch %u\n",(int)(((char*)&(s->nice_match))-((char*)s)));
+}
+*/
+
+#define dsWSize 68
+#define dsWMask 76
+#define dsWindow 80
+#define dsPrev 96
+#define dsMatchLen 144
+#define dsPrevMatch 148
+#define dsStrStart 156
+#define dsMatchStart 160
+#define dsLookahead 164
+#define dsPrevLen 168
+#define dsMaxChainLen 172
+#define dsGoodMatch 188
+#define dsNiceMatch 192
+
+#define window_size [ rcx + dsWSize]
+#define WMask [ rcx + dsWMask]
+#define window_ad [ rcx + dsWindow]
+#define prev_ad [ rcx + dsPrev]
+#define strstart [ rcx + dsStrStart]
+#define match_start [ rcx + dsMatchStart]
+#define Lookahead [ rcx + dsLookahead] //; 0ffffffffh on infozip
+#define prev_length [ rcx + dsPrevLen]
+#define max_chain_length [ rcx + dsMaxChainLen]
+#define good_match [ rcx + dsGoodMatch]
+#define nice_match [ rcx + dsNiceMatch]
+
+/*
+; windows:
+; parameter 1 in rcx(deflate state s), param 2 in rdx (cur match)
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+; rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
+
+;
+; gcc on macosx-linux:
+; see http://www.x86-64.org/documentation/abi-0.99.pdf
+; param 1 in rdi, param 2 in rsi
+; rbx, rsp, rbp, r12 to r15 must be preserved
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+
+;;; Retrieve the function arguments. r8d will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+; ms: parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
+; mac: param 1 in rdi, param 2 rsi
+; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
+*/
+ mov [save_rbx],rbx
+ mov [save_rbp],rbp
+
+
+ mov rcx,rdi
+
+ mov r8d,esi
+
+
+ mov [save_r12],r12
+ mov [save_r13],r13
+ mov [save_r14],r14
+ mov [save_r15],r15
+
+
+//;;; uInt wmask = s->w_mask;
+//;;; unsigned chain_length = s->max_chain_length;
+//;;; if (s->prev_length >= s->good_match) {
+//;;; chain_length >>= 2;
+//;;; }
+
+
+ mov edi, prev_length
+ mov esi, good_match
+ mov eax, WMask
+ mov ebx, max_chain_length
+ cmp edi, esi
+ jl LastMatchGood
+ shr ebx, 2
+LastMatchGood:
+
+//;;; chainlen is decremented once beforehand so that the function can
+//;;; use the sign flag instead of the zero flag for the exit test.
+//;;; It is then shifted into the high word, to make room for the wmask
+//;;; value, which it will always accompany.
+
+ dec ebx
+ shl ebx, 16
+ or ebx, eax
+
+//;;; on zlib only
+//;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+
+
+ mov eax, nice_match
+ mov [chainlenwmask], ebx
+ mov r10d, Lookahead
+ cmp r10d, eax
+ cmovnl r10d, eax
+ mov [nicematch],r10d
+
+
+
+//;;; register Bytef *scan = s->window + s->strstart;
+ mov r10, window_ad
+ mov ebp, strstart
+ lea r13, [r10 + rbp]
+
+//;;; Determine how many bytes the scan ptr is off from being
+//;;; dword-aligned.
+
+ mov r9,r13
+ neg r13
+ and r13,3
+
+//;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+//;;; s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+
+ mov eax, window_size
+ sub eax, MIN_LOOKAHEAD
+
+
+ xor edi,edi
+ sub ebp, eax
+
+ mov r11d, prev_length
+
+ cmovng ebp,edi
+
+//;;; int best_len = s->prev_length;
+
+
+//;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+ lea rsi,[r10+r11]
+
+//;;; register ush scan_start = *(ushf*)scan;
+//;;; register ush scan_end = *(ushf*)(scan+best_len-1);
+//;;; Posf *prev = s->prev;
+
+ movzx r12d,word ptr [r9]
+ movzx ebx, word ptr [r9 + r11 - 1]
+
+ mov rdi, prev_ad
+
+//;;; Jump into the main loop.
+
+ mov edx, [chainlenwmask]
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ jz LookupLoopIsZero
+
+
+
+LookupLoop1:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ jbe LeaveNow
+
+
+
+ sub edx, 0x00010000
+ BEFORE_JMP
+ js LeaveNow
+ AFTER_JMP
+
+LoopEntry1:
+ cmp bx,word ptr [rsi + r8 - 1]
+ BEFORE_JMP
+ jz LookupLoopIsZero
+ AFTER_JMP
+
+LookupLoop2:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ BEFORE_JMP
+ jbe LeaveNow
+ AFTER_JMP
+ sub edx, 0x00010000
+ BEFORE_JMP
+ js LeaveNow
+ AFTER_JMP
+
+LoopEntry2:
+ cmp bx,word ptr [rsi + r8 - 1]
+ BEFORE_JMP
+ jz LookupLoopIsZero
+ AFTER_JMP
+
+LookupLoop4:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ BEFORE_JMP
+ jbe LeaveNow
+ AFTER_JMP
+ sub edx, 0x00010000
+ BEFORE_JMP
+ js LeaveNow
+ AFTER_JMP
+
+LoopEntry4:
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ BEFORE_JMP
+ jnz LookupLoop1
+ jmp LookupLoopIsZero
+ AFTER_JMP
+/*
+;;; do {
+;;; match = s->window + cur_match;
+;;; if (*(ushf*)(match+best_len-1) != scan_end ||
+;;; *(ushf*)match != scan_start) continue;
+;;; [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;; && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; r8d = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+*/
+.balign 16
+LookupLoop:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ BEFORE_JMP
+ jbe LeaveNow
+ AFTER_JMP
+ sub edx, 0x00010000
+ BEFORE_JMP
+ js LeaveNow
+ AFTER_JMP
+
+LoopEntry:
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ BEFORE_JMP
+ jnz LookupLoop1
+ AFTER_JMP
+LookupLoopIsZero:
+ cmp r12w, word ptr [r10 + r8]
+ BEFORE_JMP
+ jnz LookupLoop1
+ AFTER_JMP
+
+
+//;;; Store the current value of chainlen.
+ mov [chainlenwmask], edx
+/*
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+*/
+ lea rsi,[r8+r10]
+ mov rdx, 0xfffffffffffffef8 //; -(MAX_MATCH_8)
+ lea rsi, [rsi + r13 + 0x0108] //;MAX_MATCH_8]
+ lea rdi, [r9 + r13 + 0x0108] //;MAX_MATCH_8]
+
+ prefetcht1 [rsi+rdx]
+ prefetcht1 [rdi+rdx]
+
+/*
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust rdx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (rsi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+*/
+
+LoopCmps:
+ mov rax, [rsi + rdx]
+ xor rax, [rdi + rdx]
+ jnz LeaveLoopCmps
+
+ mov rax, [rsi + rdx + 8]
+ xor rax, [rdi + rdx + 8]
+ jnz LeaveLoopCmps8
+
+
+ mov rax, [rsi + rdx + 8+8]
+ xor rax, [rdi + rdx + 8+8]
+ jnz LeaveLoopCmps16
+
+ add rdx,8+8+8
+
+ BEFORE_JMP
+ jnz LoopCmps
+ jmp LenMaximum
+ AFTER_JMP
+
+LeaveLoopCmps16: add rdx,8
+LeaveLoopCmps8: add rdx,8
+LeaveLoopCmps:
+
+ test eax, 0x0000FFFF
+ jnz LenLower
+
+ test eax,0xffffffff
+
+ jnz LenLower32
+
+ add rdx,4
+ shr rax,32
+ or ax,ax
+ BEFORE_JMP
+ jnz LenLower
+ AFTER_JMP
+
+LenLower32:
+ shr eax,16
+ add rdx,2
+
+LenLower:
+ sub al, 1
+ adc rdx, 0
+//;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+//;;; then automatically accept it as the best possible match and leave.
+
+ lea rax, [rdi + rdx]
+ sub rax, r9
+ cmp eax, MAX_MATCH
+ BEFORE_JMP
+ jge LenMaximum
+ AFTER_JMP
+/*
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+;///////////////////////////////////
+*/
+ cmp eax, r11d
+ jg LongerMatch
+
+ lea rsi,[r10+r11]
+
+ mov rdi, prev_ad
+ mov edx, [chainlenwmask]
+ BEFORE_JMP
+ jmp LookupLoop
+ AFTER_JMP
+/*
+;;; s->match_start = cur_match;
+;;; best_len = len;
+;;; if (len >= nice_match) break;
+;;; scan_end = *(ushf*)(scan+best_len-1);
+*/
+LongerMatch:
+ mov r11d, eax
+ mov match_start, r8d
+ cmp eax, [nicematch]
+ BEFORE_JMP
+ jge LeaveNow
+ AFTER_JMP
+
+ lea rsi,[r10+rax]
+
+ movzx ebx, word ptr [r9 + rax - 1]
+ mov rdi, prev_ad
+ mov edx, [chainlenwmask]
+ BEFORE_JMP
+ jmp LookupLoop
+ AFTER_JMP
+
+//;;; Accept the current string, with the maximum possible length.
+
+LenMaximum:
+ mov r11d,MAX_MATCH
+ mov match_start, r8d
+
+//;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+//;;; return s->lookahead;
+
+LeaveNow:
+ mov eax, Lookahead
+ cmp r11d, eax
+ cmovng eax, r11d
+
+
+
+//;;; Restore the stack and return from whence we came.
+
+
+// mov rsi,[save_rsi]
+// mov rdi,[save_rdi]
+ mov rbx,[save_rbx]
+ mov rbp,[save_rbp]
+ mov r12,[save_r12]
+ mov r13,[save_r13]
+ mov r14,[save_r14]
+ mov r15,[save_r15]
+
+
+ ret 0
+//; please don't remove this string !
+//; Your can freely use gvmat64 in any free or commercial app
+//; but it is far better don't remove the string in the binary!
+ // db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
+
+
+match_init:
+ ret 0
+
+
diff --git a/3party/zlib/contrib/infback9/README b/3party/zlib/contrib/infback9/README new file mode 100644 index 0000000000..e75ed13294 --- /dev/null +++ b/3party/zlib/contrib/infback9/README @@ -0,0 +1 @@ +See infback9.h for what this is and how to use it. diff --git a/3party/zlib/contrib/infback9/infback9.c b/3party/zlib/contrib/infback9/infback9.c new file mode 100644 index 0000000000..7bbe90ced2 --- /dev/null +++ b/3party/zlib/contrib/infback9/infback9.c @@ -0,0 +1,617 @@ +/* infback9.c -- inflate deflate64 data using a call-back interface + * Copyright (C) 1995-2008 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infback9.h" +#include "inftree9.h" +#include "inflate9.h" + +#define WSIZE 65536UL + +/* + strm provides memory allocation functions in zalloc and zfree, or + Z_NULL to use the library memory allocation functions. + + window is a user-supplied window and output buffer that is 64K bytes. + */ +int ZEXPORT inflateBack9Init_(strm, window, version, stream_size) +z_stream FAR *strm; +unsigned char FAR *window; +const char *version; +int stream_size; +{ + struct inflate_state FAR *state; + + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL || window == Z_NULL) + return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *)ZALLOC(strm, 1, + sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (voidpf)state; + state->window = window; + return Z_OK; +} + +/* + Build and output length and distance decoding tables for fixed code + decoding. + */ +#ifdef MAKEFIXED +#include <stdio.h> + +void makefixed9(void) +{ + unsigned sym, bits, low, size; + code *next, *lenfix, *distfix; + struct inflate_state state; + code fixed[544]; + + /* literal/length table */ + sym = 0; + while (sym < 144) state.lens[sym++] = 8; + while (sym < 256) state.lens[sym++] = 9; + while (sym < 280) state.lens[sym++] = 7; + while (sym < 288) state.lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work); + + /* distance table */ + sym = 0; + while (sym < 32) state.lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work); + + /* write tables */ + puts(" /* inffix9.h -- table for decoding deflate64 fixed codes"); + puts(" * Generated automatically by makefixed9()."); + puts(" */"); + puts(""); + puts(" /* WARNING: this file should *not* be used by applications."); + puts(" It is part of the implementation of this library and is"); + puts(" subject to change. Applications should only use zlib.h."); + puts(" */"); + puts(""); + size = 1U << 9; + printf(" static const code lenfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 6) == 0) printf("\n "); + printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits, + lenfix[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); + size = 1U << 5; + printf("\n static const code distfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 5) == 0) printf("\n "); + printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits, + distfix[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); +} +#endif /* MAKEFIXED */ + +/* Macros for inflateBack(): */ + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Assure that some input is available. If input is requested, but denied, + then return a Z_BUF_ERROR from inflateBack(). */ +#define PULL() \ + do { \ + if (have == 0) { \ + have = in(in_desc, &next); \ + if (have == 0) { \ + next = Z_NULL; \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflateBack() + with an error if there is no input available. */ +#define PULLBYTE() \ + do { \ + PULL(); \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflateBack() with + an error. */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n <= 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Assure that some output space is available, by writing out the window + if it's full. If the write fails, return from inflateBack() with a + Z_BUF_ERROR. */ +#define ROOM() \ + do { \ + if (left == 0) { \ + put = window; \ + left = WSIZE; \ + wrap = 1; \ + if (out(out_desc, put, (unsigned)left)) { \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* + strm provides the memory allocation functions and window buffer on input, + and provides information on the unused input on return. For Z_DATA_ERROR + returns, strm will also provide an error message. + + in() and out() are the call-back input and output functions. When + inflateBack() needs more input, it calls in(). When inflateBack() has + filled the window with output, or when it completes with data in the + window, it calls out() to write out the data. The application must not + change the provided input until in() is called again or inflateBack() + returns. The application must not change the window/output buffer until + inflateBack() returns. + + in() and out() are called with a descriptor parameter provided in the + inflateBack() call. This parameter can be a structure that provides the + information required to do the read or write, as well as accumulated + information on the input and output such as totals and check values. + + in() should return zero on failure. out() should return non-zero on + failure. If either in() or out() fails, than inflateBack() returns a + Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it + was in() or out() that caused in the error. Otherwise, inflateBack() + returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format + error, or Z_MEM_ERROR if it could not allocate memory for the state. + inflateBack() can also return Z_STREAM_ERROR if the input parameters + are not correct, i.e. strm is Z_NULL or the state was not initialized. + */ +int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc) +z_stream FAR *strm; +in_func in; +void FAR *in_desc; +out_func out; +void FAR *out_desc; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have; /* available input */ + unsigned long left; /* available output */ + inflate_mode mode; /* current inflate mode */ + int lastblock; /* true if processing last block */ + int wrap; /* true if the window has wrapped */ + unsigned long write; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned extra; /* extra bits needed */ + unsigned long length; /* literal or length of data to copy */ + unsigned long offset; /* distance back to copy string from */ + unsigned long copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code const FAR *lencode; /* starting table for length/literal codes */ + code const FAR *distcode; /* starting table for distance codes */ + unsigned lenbits; /* index bits for lencode */ + unsigned distbits; /* index bits for distcode */ + code here; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; +#include "inffix9.h" + + /* Check that the strm exists and that the state was initialized */ + if (strm == Z_NULL || strm->state == Z_NULL) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + + /* Reset the state */ + strm->msg = Z_NULL; + mode = TYPE; + lastblock = 0; + write = 0; + wrap = 0; + window = state->window; + next = strm->next_in; + have = next != Z_NULL ? strm->avail_in : 0; + hold = 0; + bits = 0; + put = window; + left = WSIZE; + lencode = Z_NULL; + distcode = Z_NULL; + + /* Inflate until end of block marked as last */ + for (;;) + switch (mode) { + case TYPE: + /* determine and dispatch block type */ + if (lastblock) { + BYTEBITS(); + mode = DONE; + break; + } + NEEDBITS(3); + lastblock = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + lastblock ? " (last)" : "")); + mode = STORED; + break; + case 1: /* fixed block */ + lencode = lenfix; + lenbits = 9; + distcode = distfix; + distbits = 5; + Tracev((stderr, "inflate: fixed codes block%s\n", + lastblock ? " (last)" : "")); + mode = LEN; /* decode codes */ + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + lastblock ? " (last)" : "")); + mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + mode = BAD; + } + DROPBITS(2); + break; + + case STORED: + /* get and verify stored block length */ + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + mode = BAD; + break; + } + length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %lu\n", + length)); + INITBITS(); + + /* copy stored block from input to output */ + while (length != 0) { + copy = length; + PULL(); + ROOM(); + if (copy > have) copy = have; + if (copy > left) copy = left; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + length -= copy; + } + Tracev((stderr, "inflate: stored end\n")); + mode = TYPE; + break; + + case TABLE: + /* get dynamic table entries descriptor */ + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); + if (state->nlen > 286) { + strm->msg = (char *)"too many length symbols"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: table sizes ok\n")); + + /* get code length code lengths (not a typo) */ + state->have = 0; + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + lencode = (code const FAR *)(state->next); + lenbits = 7; + ret = inflate_table9(CODES, state->lens, 19, &(state->next), + &(lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + + /* get length and distance code code lengths */ + state->have = 0; + while (state->have < state->nlen + state->ndist) { + for (;;) { + here = lencode[BITS(lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.val < 16) { + NEEDBITS(here.bits); + DROPBITS(here.bits); + state->lens[state->have++] = here.val; + } + else { + if (here.val == 16) { + NEEDBITS(here.bits + 2); + DROPBITS(here.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + mode = BAD; + break; + } + len = (unsigned)(state->lens[state->have - 1]); + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (here.val == 17) { + NEEDBITS(here.bits + 3); + DROPBITS(here.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(here.bits + 7); + DROPBITS(here.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* handle error breaks in while */ + if (mode == BAD) break; + + /* check for end-of-block code (better have one) */ + if (state->lens[256] == 0) { + strm->msg = (char *)"invalid code -- missing end-of-block"; + mode = BAD; + break; + } + + /* build code tables -- note: do not change the lenbits or distbits + values here (9 and 6) without reading the comments in inftree9.h + concerning the ENOUGH constants, which depend on those values */ + state->next = state->codes; + lencode = (code const FAR *)(state->next); + lenbits = 9; + ret = inflate_table9(LENS, state->lens, state->nlen, + &(state->next), &(lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + mode = BAD; + break; + } + distcode = (code const FAR *)(state->next); + distbits = 6; + ret = inflate_table9(DISTS, state->lens + state->nlen, + state->ndist, &(state->next), &(distbits), + state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + mode = LEN; + + case LEN: + /* get a literal, length, or end-of-block code */ + for (;;) { + here = lencode[BITS(lenbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if (here.op && (here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(here.bits); + length = (unsigned)here.val; + + /* process literal */ + if (here.op == 0) { + Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", here.val)); + ROOM(); + *put++ = (unsigned char)(length); + left--; + mode = LEN; + break; + } + + /* process end of block */ + if (here.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + mode = TYPE; + break; + } + + /* invalid code */ + if (here.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + mode = BAD; + break; + } + + /* length code -- get extra bits, if any */ + extra = (unsigned)(here.op) & 31; + if (extra != 0) { + NEEDBITS(extra); + length += BITS(extra); + DROPBITS(extra); + } + Tracevv((stderr, "inflate: length %lu\n", length)); + + /* get distance code */ + for (;;) { + here = distcode[BITS(distbits)]; + if ((unsigned)(here.bits) <= bits) break; + PULLBYTE(); + } + if ((here.op & 0xf0) == 0) { + last = here; + for (;;) { + here = distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + here.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(here.bits); + if (here.op & 64) { + strm->msg = (char *)"invalid distance code"; + mode = BAD; + break; + } + offset = (unsigned)here.val; + + /* get distance extra bits, if any */ + extra = (unsigned)(here.op) & 15; + if (extra != 0) { + NEEDBITS(extra); + offset += BITS(extra); + DROPBITS(extra); + } + if (offset > WSIZE - (wrap ? 0: left)) { + strm->msg = (char *)"invalid distance too far back"; + mode = BAD; + break; + } + Tracevv((stderr, "inflate: distance %lu\n", offset)); + + /* copy match from window to output */ + do { + ROOM(); + copy = WSIZE - offset; + if (copy < left) { + from = put + copy; + copy = left - copy; + } + else { + from = put - offset; + copy = left; + } + if (copy > length) copy = length; + length -= copy; + left -= copy; + do { + *put++ = *from++; + } while (--copy); + } while (length != 0); + break; + + case DONE: + /* inflate stream terminated properly -- write leftover output */ + ret = Z_STREAM_END; + if (left < WSIZE) { + if (out(out_desc, window, (unsigned)(WSIZE - left))) + ret = Z_BUF_ERROR; + } + goto inf_leave; + + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + + default: /* can't happen, but makes compilers happy */ + ret = Z_STREAM_ERROR; + goto inf_leave; + } + + /* Return unused input */ + inf_leave: + strm->next_in = next; + strm->avail_in = have; + return ret; +} + +int ZEXPORT inflateBack9End(strm) +z_stream FAR *strm; +{ + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} diff --git a/3party/zlib/contrib/infback9/infback9.h b/3party/zlib/contrib/infback9/infback9.h new file mode 100644 index 0000000000..1073c0a38e --- /dev/null +++ b/3party/zlib/contrib/infback9/infback9.h @@ -0,0 +1,37 @@ +/* infback9.h -- header for using inflateBack9 functions + * Copyright (C) 2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * This header file and associated patches provide a decoder for PKWare's + * undocumented deflate64 compression method (method 9). Use with infback9.c, + * inftree9.h, inftree9.c, and inffix9.h. These patches are not supported. + * This should be compiled with zlib, since it uses zutil.h and zutil.o. + * This code has not yet been tested on 16-bit architectures. See the + * comments in zlib.h for inflateBack() usage. These functions are used + * identically, except that there is no windowBits parameter, and a 64K + * window must be provided. Also if int's are 16 bits, then a zero for + * the third parameter of the "out" function actually means 65536UL. + * zlib.h must be included before this header file. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm, + in_func in, void FAR *in_desc, + out_func out, void FAR *out_desc)); +ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm)); +ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm, + unsigned char FAR *window, + const char *version, + int stream_size)); +#define inflateBack9Init(strm, window) \ + inflateBack9Init_((strm), (window), \ + ZLIB_VERSION, sizeof(z_stream)) + +#ifdef __cplusplus +} +#endif diff --git a/3party/zlib/contrib/infback9/inffix9.h b/3party/zlib/contrib/infback9/inffix9.h new file mode 100644 index 0000000000..ee5671d2df --- /dev/null +++ b/3party/zlib/contrib/infback9/inffix9.h @@ -0,0 +1,107 @@ + /* inffix9.h -- table for decoding deflate64 fixed codes + * Generated automatically by makefixed9(). + */ + + /* WARNING: this file should *not* be used by applications. + It is part of the implementation of this library and is + subject to change. Applications should only use zlib.h. + */ + + static const code lenfix[512] = { + {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112}, + {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160}, + {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88}, + {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208}, + {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136}, + {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227}, + {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100}, + {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232}, + {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124}, + {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184}, + {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82}, + {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196}, + {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130}, + {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148}, + {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106}, + {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244}, + {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118}, + {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172}, + {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94}, + {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220}, + {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, + {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131}, + {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97}, + {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226}, + {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121}, + {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178}, + {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85}, + {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202}, + {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133}, + {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154}, + {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109}, + {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250}, + {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115}, + {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166}, + {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91}, + {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214}, + {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139}, + {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0}, + {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103}, + {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238}, + {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127}, + {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190}, + {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80}, + {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193}, + {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128}, + {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145}, + {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104}, + {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241}, + {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116}, + {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169}, + {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92}, + {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217}, + {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140}, + {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163}, + {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98}, + {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, + {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122}, + {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181}, + {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86}, + {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205}, + {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134}, + {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157}, + {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110}, + {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253}, + {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113}, + {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163}, + {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89}, + {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211}, + {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137}, + {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3}, + {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101}, + {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235}, + {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125}, + {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187}, + {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83}, + {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199}, + {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, + {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151}, + {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107}, + {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247}, + {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119}, + {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175}, + {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95}, + {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223}, + {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143}, + {0,8,79},{0,9,255} + }; + + static const code distfix[32] = { + {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5}, + {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513}, + {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129}, + {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145}, + {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4}, + {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073}, + {134,5,193},{142,5,49153} + }; diff --git a/3party/zlib/contrib/infback9/inflate9.h b/3party/zlib/contrib/infback9/inflate9.h new file mode 100644 index 0000000000..ee9a79394b --- /dev/null +++ b/3party/zlib/contrib/infback9/inflate9.h @@ -0,0 +1,47 @@ +/* inflate9.h -- internal inflate state definition + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Possible inflate modes between inflate() calls */ +typedef enum { + TYPE, /* i: waiting for type bits, including last-flag bit */ + STORED, /* i: waiting for stored size (length and complement) */ + TABLE, /* i: waiting for dynamic block table lengths */ + LEN, /* i: waiting for length/lit code */ + DONE, /* finished check, done -- remain here until reset */ + BAD /* got a data error -- remain here until reset */ +} inflate_mode; + +/* + State transitions between above modes - + + (most modes can go to the BAD mode -- not shown for clarity) + + Read deflate blocks: + TYPE -> STORED or TABLE or LEN or DONE + STORED -> TYPE + TABLE -> LENLENS -> CODELENS -> LEN + Read deflate codes: + LEN -> LEN or TYPE + */ + +/* state maintained between inflate() calls. Approximately 7K bytes. */ +struct inflate_state { + /* sliding window */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + /* dynamic table building */ + unsigned ncode; /* number of code length code lengths */ + unsigned nlen; /* number of length code lengths */ + unsigned ndist; /* number of distance code lengths */ + unsigned have; /* number of code lengths in lens[] */ + code FAR *next; /* next available space in codes[] */ + unsigned short lens[320]; /* temporary storage for code lengths */ + unsigned short work[288]; /* work area for code table building */ + code codes[ENOUGH]; /* space for code tables */ +}; diff --git a/3party/zlib/contrib/infback9/inftree9.c b/3party/zlib/contrib/infback9/inftree9.c new file mode 100644 index 0000000000..306c5f1b19 --- /dev/null +++ b/3party/zlib/contrib/infback9/inftree9.c @@ -0,0 +1,324 @@ +/* inftree9.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftree9.h" + +#define MAXBITS 15 + +const char inflate9_copyright[] = + " inflate9 1.2.5 Copyright 1995-2010 Mark Adler "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* + Build a set of tables to decode the provided canonical Huffman code. + The code lengths are lens[0..codes-1]. The result starts at *table, + whose indices are 0..2^bits-1. work is a writable array of at least + lens shorts, which is used as a work area. type is the type of code + to be generated, CODES, LENS, or DISTS. On return, zero is success, + -1 is an invalid code, and +1 means that ENOUGH isn't enough. table + on return points to the next available entry's address. bits is the + requested root table index bits, and on return it is the actual root + table index bits. It will differ if the request is greater than the + longest code or if it is less than the shortest code. + */ +int inflate_table9(type, lens, codes, table, bits, work) +codetype type; +unsigned short FAR *lens; +unsigned codes; +code FAR * FAR *table; +unsigned FAR *bits; +unsigned short FAR *work; +{ + unsigned len; /* a code's length in bits */ + unsigned sym; /* index of code symbols */ + unsigned min, max; /* minimum and maximum code lengths */ + unsigned root; /* number of index bits for root table */ + unsigned curr; /* number of index bits for current table */ + unsigned drop; /* code bits to drop for sub-table */ + int left; /* number of prefix codes available */ + unsigned used; /* code entries in table used */ + unsigned huff; /* Huffman code */ + unsigned incr; /* for incrementing code, index */ + unsigned fill; /* index for replicating entries */ + unsigned low; /* low bits for current root entry */ + unsigned mask; /* mask for low root bits */ + code this; /* table entry for duplication */ + code FAR *next; /* next available space in table */ + const unsigned short FAR *base; /* base value table to use */ + const unsigned short FAR *extra; /* extra bits table to use */ + int end; /* use base and extra for symbol > end */ + unsigned short count[MAXBITS+1]; /* number of codes of each length */ + unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ + static const unsigned short lbase[31] = { /* Length codes 257..285 base */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, + 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, + 131, 163, 195, 227, 3, 0, 0}; + static const unsigned short lext[31] = { /* Length codes 257..285 extra */ + 128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129, + 130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132, + 133, 133, 133, 133, 144, 73, 195}; + static const unsigned short dbase[32] = { /* Distance codes 0..31 base */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, + 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, + 4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153}; + static const unsigned short dext[32] = { /* Distance codes 0..31 extra */ + 128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132, + 133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138, + 139, 139, 140, 140, 141, 141, 142, 142}; + + /* + Process a set of code lengths to create a canonical Huffman code. The + code lengths are lens[0..codes-1]. Each length corresponds to the + symbols 0..codes-1. The Huffman code is generated by first sorting the + symbols by length from short to long, and retaining the symbol order + for codes with equal lengths. Then the code starts with all zero bits + for the first code of the shortest length, and the codes are integer + increments for the same length, and zeros are appended as the length + increases. For the deflate format, these bits are stored backwards + from their more natural integer increment ordering, and so when the + decoding tables are built in the large loop below, the integer codes + are incremented backwards. + + This routine assumes, but does not check, that all of the entries in + lens[] are in the range 0..MAXBITS. The caller must assure this. + 1..MAXBITS is interpreted as that code length. zero means that that + symbol does not occur in this code. + + The codes are sorted by computing a count of codes for each length, + creating from that a table of starting indices for each length in the + sorted table, and then entering the symbols in order in the sorted + table. The sorted table is work[], with that space being provided by + the caller. + + The length counts are used for other purposes as well, i.e. finding + the minimum and maximum length codes, determining if there are any + codes at all, checking for a valid set of lengths, and looking ahead + at length counts to determine sub-table sizes when building the + decoding tables. + */ + + /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ + for (len = 0; len <= MAXBITS; len++) + count[len] = 0; + for (sym = 0; sym < codes; sym++) + count[lens[sym]]++; + + /* bound code lengths, force root to be within code lengths */ + root = *bits; + for (max = MAXBITS; max >= 1; max--) + if (count[max] != 0) break; + if (root > max) root = max; + if (max == 0) return -1; /* no codes! */ + for (min = 1; min <= MAXBITS; min++) + if (count[min] != 0) break; + if (root < min) root = min; + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; + left -= count[len]; + if (left < 0) return -1; /* over-subscribed */ + } + if (left > 0 && (type == CODES || max != 1)) + return -1; /* incomplete set */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + count[len]; + + /* sort symbols by length, by symbol order within each length */ + for (sym = 0; sym < codes; sym++) + if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; + + /* + Create and fill in decoding tables. In this loop, the table being + filled is at next and has curr index bits. The code being used is huff + with length len. That code is converted to an index by dropping drop + bits off of the bottom. For codes where len is less than drop + curr, + those top drop + curr - len bits are incremented through all values to + fill the table with replicated entries. + + root is the number of index bits for the root table. When len exceeds + root, sub-tables are created pointed to by the root entry with an index + of the low root bits of huff. This is saved in low to check for when a + new sub-table should be started. drop is zero when the root table is + being filled, and drop is root when sub-tables are being filled. + + When a new sub-table is needed, it is necessary to look ahead in the + code lengths to determine what size sub-table is needed. The length + counts are used for this, and so count[] is decremented as codes are + entered in the tables. + + used keeps track of how many table entries have been allocated from the + provided *table space. It is checked for LENS and DIST tables against + the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in + the initial root table size constants. See the comments in inftree9.h + for more information. + + sym increments through all symbols, and the loop terminates when + all codes of length max, i.e. all codes, have been processed. This + routine permits incomplete codes, so another loop after this one fills + in the rest of the decoding tables with invalid code markers. + */ + + /* set up for code type */ + switch (type) { + case CODES: + base = extra = work; /* dummy value--not used */ + end = 19; + break; + case LENS: + base = lbase; + base -= 257; + extra = lext; + extra -= 257; + end = 256; + break; + default: /* DISTS */ + base = dbase; + extra = dext; + end = -1; + } + + /* initialize state for loop */ + huff = 0; /* starting code */ + sym = 0; /* starting code symbol */ + len = min; /* starting code length */ + next = *table; /* current table to fill in */ + curr = root; /* current table index bits */ + drop = 0; /* current bits to drop from code for index */ + low = (unsigned)(-1); /* trigger new sub-table when len > root */ + used = 1U << root; /* use root table entries */ + mask = used - 1; /* mask for comparing low */ + + /* check available table space */ + if ((type == LENS && used >= ENOUGH_LENS) || + (type == DISTS && used >= ENOUGH_DISTS)) + return 1; + + /* process all codes and make table entries */ + for (;;) { + /* create table entry */ + this.bits = (unsigned char)(len - drop); + if ((int)(work[sym]) < end) { + this.op = (unsigned char)0; + this.val = work[sym]; + } + else if ((int)(work[sym]) > end) { + this.op = (unsigned char)(extra[work[sym]]); + this.val = base[work[sym]]; + } + else { + this.op = (unsigned char)(32 + 64); /* end of block */ + this.val = 0; + } + + /* replicate for those indices with low len bits equal to huff */ + incr = 1U << (len - drop); + fill = 1U << curr; + do { + fill -= incr; + next[(huff >> drop) + fill] = this; + } while (fill != 0); + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + + /* go to next symbol, update count, len */ + sym++; + if (--(count[len]) == 0) { + if (len == max) break; + len = lens[work[sym]]; + } + + /* create new sub-table if needed */ + if (len > root && (huff & mask) != low) { + /* if first time, transition to sub-tables */ + if (drop == 0) + drop = root; + + /* increment past last table */ + next += 1U << curr; + + /* determine length of next table */ + curr = len - drop; + left = (int)(1 << curr); + while (curr + drop < max) { + left -= count[curr + drop]; + if (left <= 0) break; + curr++; + left <<= 1; + } + + /* check for enough space */ + used += 1U << curr; + if ((type == LENS && used >= ENOUGH_LENS) || + (type == DISTS && used >= ENOUGH_DISTS)) + return 1; + + /* point entry in root table to sub-table */ + low = huff & mask; + (*table)[low].op = (unsigned char)curr; + (*table)[low].bits = (unsigned char)root; + (*table)[low].val = (unsigned short)(next - *table); + } + } + + /* + Fill in rest of table for incomplete codes. This loop is similar to the + loop above in incrementing huff for table indices. It is assumed that + len is equal to curr + drop, so there is no loop needed to increment + through high index bits. When the current sub-table is filled, the loop + drops back to the root table to fill in any remaining entries there. + */ + this.op = (unsigned char)64; /* invalid code marker */ + this.bits = (unsigned char)(len - drop); + this.val = (unsigned short)0; + while (huff != 0) { + /* when done with sub-table, drop back to root table */ + if (drop != 0 && (huff & mask) != low) { + drop = 0; + len = root; + next = *table; + curr = root; + this.bits = (unsigned char)len; + } + + /* put invalid code marker in table */ + next[huff >> drop] = this; + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + } + + /* set return parameters */ + *table += used; + *bits = root; + return 0; +} diff --git a/3party/zlib/contrib/infback9/inftree9.h b/3party/zlib/contrib/infback9/inftree9.h new file mode 100644 index 0000000000..5ab21f0c6d --- /dev/null +++ b/3party/zlib/contrib/infback9/inftree9.h @@ -0,0 +1,61 @@ +/* inftree9.h -- header to use inftree9.c + * Copyright (C) 1995-2008 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Structure for decoding tables. Each entry provides either the + information needed to do the operation requested by the code that + indexed that table entry, or it provides a pointer to another + table that indexes more bits of the code. op indicates whether + the entry is a pointer to another table, a literal, a length or + distance, an end-of-block, or an invalid code. For a table + pointer, the low four bits of op is the number of index bits of + that table. For a length or distance, the low four bits of op + is the number of extra bits to get after the code. bits is + the number of bits in this code or part of the code to drop off + of the bit buffer. val is the actual byte to output in the case + of a literal, the base length or distance, or the offset from + the current table to the next table. Each entry is four bytes. */ +typedef struct { + unsigned char op; /* operation, extra bits, table bits */ + unsigned char bits; /* bits in this part of the code */ + unsigned short val; /* offset in table or code value */ +} code; + +/* op values as set by inflate_table(): + 00000000 - literal + 0000tttt - table link, tttt != 0 is the number of table index bits + 100eeeee - length or distance, eeee is the number of extra bits + 01100000 - end of block + 01000000 - invalid code + */ + +/* Maximum size of the dynamic table. The maximum number of code structures is + 1446, which is the sum of 852 for literal/length codes and 594 for distance + codes. These values were found by exhaustive searches using the program + examples/enough.c found in the zlib distribtution. The arguments to that + program are the number of symbols, the initial root table size, and the + maximum bit length of a code. "enough 286 9 15" for literal/length codes + returns returns 852, and "enough 32 6 15" for distance codes returns 594. + The initial root table size (9 or 6) is found in the fifth argument of the + inflate_table() calls in infback9.c. If the root table size is changed, + then these maximum sizes would be need to be recalculated and updated. */ +#define ENOUGH_LENS 852 +#define ENOUGH_DISTS 594 +#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) + +/* Type of code to build for inflate_table9() */ +typedef enum { + CODES, + LENS, + DISTS +} codetype; + +extern int inflate_table9 OF((codetype type, unsigned short FAR *lens, + unsigned codes, code FAR * FAR *table, + unsigned FAR *bits, unsigned short FAR *work)); diff --git a/3party/zlib/contrib/inflate86/inffas86.c b/3party/zlib/contrib/inflate86/inffas86.c new file mode 100644 index 0000000000..7292f67b75 --- /dev/null +++ b/3party/zlib/contrib/inflate86/inffas86.c @@ -0,0 +1,1157 @@ +/* inffas86.c is a hand tuned assembler version of + * + * inffast.c -- fast decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Copyright (C) 2003 Chris Anderson <christop@charm.net> + * Please use the copyright conditions above. + * + * Dec-29-2003 -- I added AMD64 inflate asm support. This version is also + * slightly quicker on x86 systems because, instead of using rep movsb to copy + * data, it uses rep movsw, which moves data in 2-byte chunks instead of single + * bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates + * from http://fedora.linux.duke.edu/fc1_x86_64 + * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with + * 1GB ram. The 64-bit version is about 4% faster than the 32-bit version, + * when decompressing mozilla-source-1.3.tar.gz. + * + * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from + * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at + * the moment. I have successfully compiled and tested this code with gcc2.96, + * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S + * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX + * enabled. I will attempt to merge the MMX code into this version. Newer + * versions of this and inffast.S can be found at + * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/ + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +/* Mark Adler's comments from inffast.c: */ + +/* + Decode literal, length, and distance codes and write out the resulting + literal and match bytes until either not enough input or output is + available, an end-of-block is encountered, or a data error is encountered. + When large enough input and output buffers are supplied to inflate(), for + example, a 16K input buffer and a 64K output buffer, more than 95% of the + inflate execution time is spent in this routine. + + Entry assumptions: + + state->mode == LEN + strm->avail_in >= 6 + strm->avail_out >= 258 + start >= strm->avail_out + state->bits < 8 + + On return, state->mode is one of: + + LEN -- ran out of enough output space or enough available input + TYPE -- reached end of block code, inflate() to interpret next block + BAD -- error in block data + + Notes: + + - The maximum input bits used by a length/distance pair is 15 bits for the + length code, 5 bits for the length extra, 15 bits for the distance code, + and 13 bits for the distance extra. This totals 48 bits, or six bytes. + Therefore if strm->avail_in >= 6, then there is enough input to avoid + checking for available input while decoding. + + - The maximum bytes that a single length/distance pair can output is 258 + bytes, which is the maximum length that can be coded. inflate_fast() + requires strm->avail_out >= 258 for each loop to avoid checking for + output space. + */ +void inflate_fast(strm, start) +z_streamp strm; +unsigned start; /* inflate()'s starting value for strm->avail_out */ +{ + struct inflate_state FAR *state; + struct inffast_ar { +/* 64 32 x86 x86_64 */ +/* ar offset register */ +/* 0 0 */ void *esp; /* esp save */ +/* 8 4 */ void *ebp; /* ebp save */ +/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */ +/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */ +/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */ +/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */ +/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */ +/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */ +/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */ +/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */ +/* 80 40 */ unsigned long hold; /* edx rdx local strm->hold */ +/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */ +/* 92 48 */ unsigned wsize; /* window size */ +/* 96 52 */ unsigned write; /* window write index */ +/*100 56 */ unsigned lmask; /* r12 mask for lcode */ +/*104 60 */ unsigned dmask; /* r13 mask for dcode */ +/*108 64 */ unsigned len; /* r14 match length */ +/*112 68 */ unsigned dist; /* r15 match distance */ +/*116 72 */ unsigned status; /* set when state chng*/ + } ar; + +#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 ) +#define PAD_AVAIL_IN 6 +#define PAD_AVAIL_OUT 258 +#else +#define PAD_AVAIL_IN 5 +#define PAD_AVAIL_OUT 257 +#endif + + /* copy state to local variables */ + state = (struct inflate_state FAR *)strm->state; + ar.in = strm->next_in; + ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN); + ar.out = strm->next_out; + ar.beg = ar.out - (start - strm->avail_out); + ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT); + ar.wsize = state->wsize; + ar.write = state->wnext; + ar.window = state->window; + ar.hold = state->hold; + ar.bits = state->bits; + ar.lcode = state->lencode; + ar.dcode = state->distcode; + ar.lmask = (1U << state->lenbits) - 1; + ar.dmask = (1U << state->distbits) - 1; + + /* decode literals and length/distances until end-of-block or not enough + input data or output space */ + + /* align in on 1/2 hold size boundary */ + while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) { + ar.hold += (unsigned long)*ar.in++ << ar.bits; + ar.bits += 8; + } + +#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 ) + __asm__ __volatile__ ( +" leaq %0, %%rax\n" +" movq %%rbp, 8(%%rax)\n" /* save regs rbp and rsp */ +" movq %%rsp, (%%rax)\n" +" movq %%rax, %%rsp\n" /* make rsp point to &ar */ +" movq 16(%%rsp), %%rsi\n" /* rsi = in */ +" movq 32(%%rsp), %%rdi\n" /* rdi = out */ +" movq 24(%%rsp), %%r9\n" /* r9 = last */ +" movq 48(%%rsp), %%r10\n" /* r10 = end */ +" movq 64(%%rsp), %%rbp\n" /* rbp = lcode */ +" movq 72(%%rsp), %%r11\n" /* r11 = dcode */ +" movq 80(%%rsp), %%rdx\n" /* rdx = hold */ +" movl 88(%%rsp), %%ebx\n" /* ebx = bits */ +" movl 100(%%rsp), %%r12d\n" /* r12d = lmask */ +" movl 104(%%rsp), %%r13d\n" /* r13d = dmask */ + /* r14d = len */ + /* r15d = dist */ +" cld\n" +" cmpq %%rdi, %%r10\n" +" je .L_one_time\n" /* if only one decode left */ +" cmpq %%rsi, %%r9\n" +" je .L_one_time\n" +" jmp .L_do_loop\n" + +".L_one_time:\n" +" movq %%r12, %%r8\n" /* r8 = lmask */ +" cmpb $32, %%bl\n" +" ja .L_get_length_code_one_time\n" + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ +" jmp .L_get_length_code_one_time\n" + +".align 32,0x90\n" +".L_while_test:\n" +" cmpq %%rdi, %%r10\n" +" jbe .L_break_loop\n" +" cmpq %%rsi, %%r9\n" +" jbe .L_break_loop\n" + +".L_do_loop:\n" +" movq %%r12, %%r8\n" /* r8 = lmask */ +" cmpb $32, %%bl\n" +" ja .L_get_length_code\n" /* if (32 < bits) */ + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ + +".L_get_length_code:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" movq %%r12, %%r8\n" /* r8 = lmask */ +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" + +".L_get_length_code_one_time:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +".L_dolen:\n" +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_length_base:\n" +" movl %%eax, %%r14d\n" /* len = this */ +" shrl $16, %%r14d\n" /* len = this.val */ +" movb %%al, %%cl\n" + +" testb $16, %%al\n" +" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */ +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_decode_distance\n" /* if (!op) */ + +".L_add_bits_to_len:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrq %%cl, %%rdx\n" +" addl %%eax, %%r14d\n" /* len += hold & mask[op] */ + +".L_decode_distance:\n" +" movq %%r13, %%r8\n" /* r8 = dmask */ +" cmpb $32, %%bl\n" +" ja .L_get_distance_code\n" /* if (32 < bits) */ + +" lodsl\n" /* eax = *(uint *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $32, %%bl\n" /* bits += 32 */ +" shlq %%cl, %%rax\n" +" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */ + +".L_get_distance_code:\n" +" andq %%rdx, %%r8\n" /* r8 &= hold */ +" movl (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */ + +".L_dodist:\n" +" movl %%eax, %%r15d\n" /* dist = this */ +" shrl $16, %%r15d\n" /* dist = this.val */ +" movb %%ah, %%cl\n" +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrq %%cl, %%rdx\n" /* hold >>= this.bits */ +" movb %%al, %%cl\n" /* cl = this.op */ + +" testb $16, %%al\n" /* if ((op & 16) == 0) */ +" jz .L_test_for_second_level_dist\n" +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_check_dist_one\n" + +".L_add_bits_to_dist:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" /* (1 << op) - 1 */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrq %%cl, %%rdx\n" +" addl %%eax, %%r15d\n" /* dist += hold & ((1 << op) - 1) */ + +".L_check_window:\n" +" movq %%rsi, %%r8\n" /* save in so from can use it's reg */ +" movq %%rdi, %%rax\n" +" subq 40(%%rsp), %%rax\n" /* nbytes = out - beg */ + +" cmpl %%r15d, %%eax\n" +" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */ + +" movl %%r14d, %%ecx\n" /* ecx = len */ +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ + +" sarl %%ecx\n" +" jnc .L_copy_two\n" /* if len % 2 == 0 */ + +" rep movsw\n" +" movb (%%rsi), %%al\n" +" movb %%al, (%%rdi)\n" +" incq %%rdi\n" + +" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */ +" jmp .L_while_test\n" + +".L_copy_two:\n" +" rep movsw\n" +" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_check_dist_one:\n" +" cmpl $1, %%r15d\n" /* if dist 1, is a memset */ +" jne .L_check_window\n" +" cmpq %%rdi, 40(%%rsp)\n" /* if out == beg, outside window */ +" je .L_check_window\n" + +" movl %%r14d, %%ecx\n" /* ecx = len */ +" movb -1(%%rdi), %%al\n" +" movb %%al, %%ah\n" + +" sarl %%ecx\n" +" jnc .L_set_two\n" +" movb %%al, (%%rdi)\n" +" incq %%rdi\n" + +".L_set_two:\n" +" rep stosw\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_second_level_length:\n" +" testb $64, %%al\n" +" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%r14d, %%eax\n" /* eax += len */ +" movl (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/ +" jmp .L_dolen\n" + +".align 32,0x90\n" +".L_test_for_second_level_dist:\n" +" testb $64, %%al\n" +" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%r15d, %%eax\n" /* eax += dist */ +" movl (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/ +" jmp .L_dodist\n" + +".align 32,0x90\n" +".L_clip_window:\n" +" movl %%eax, %%ecx\n" /* ecx = nbytes */ +" movl 92(%%rsp), %%eax\n" /* eax = wsize, prepare for dist cmp */ +" negl %%ecx\n" /* nbytes = -nbytes */ + +" cmpl %%r15d, %%eax\n" +" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */ + +" addl %%r15d, %%ecx\n" /* nbytes = dist - nbytes */ +" cmpl $0, 96(%%rsp)\n" +" jne .L_wrap_around_window\n" /* if (write != 0) */ + +" movq 56(%%rsp), %%rsi\n" /* from = window */ +" subl %%ecx, %%eax\n" /* eax -= nbytes */ +" addq %%rax, %%rsi\n" /* from += wsize - nbytes */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%r14d\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* eax -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = &out[ -dist ] */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_wrap_around_window:\n" +" movl 96(%%rsp), %%eax\n" /* eax = write */ +" cmpl %%eax, %%ecx\n" +" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */ + +" movl 92(%%rsp), %%esi\n" /* from = wsize */ +" addq 56(%%rsp), %%rsi\n" /* from += window */ +" addq %%rax, %%rsi\n" /* from += write */ +" subq %%rcx, %%rsi\n" /* from -= nbytes */ +" subl %%eax, %%ecx\n" /* nbytes -= write */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq 56(%%rsp), %%rsi\n" /* from = window */ +" movl 96(%%rsp), %%ecx\n" /* nbytes = write */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_contiguous_in_window:\n" +" movq 56(%%rsp), %%rsi\n" /* rsi = window */ +" addq %%rax, %%rsi\n" +" subq %%rcx, %%rsi\n" /* from += write - nbytes */ + +" movl %%r14d, %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movq %%rdi, %%rsi\n" +" subq %%r15, %%rsi\n" /* from = out - dist */ +" jmp .L_do_copy\n" /* if (nbytes >= len) */ + +".align 32,0x90\n" +".L_do_copy:\n" +" movl %%eax, %%ecx\n" /* ecx = len */ +" rep movsb\n" + +" movq %%r8, %%rsi\n" /* move in back to %esi, toss from */ +" jmp .L_while_test\n" + +".L_test_for_end_of_block:\n" +" testb $32, %%al\n" +" jz .L_invalid_literal_length_code\n" +" movl $1, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_literal_length_code:\n" +" movl $2, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_code:\n" +" movl $3, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_too_far:\n" +" movl $4, 116(%%rsp)\n" +" jmp .L_break_loop_with_status\n" + +".L_break_loop:\n" +" movl $0, 116(%%rsp)\n" + +".L_break_loop_with_status:\n" +/* put in, out, bits, and hold back into ar and pop esp */ +" movq %%rsi, 16(%%rsp)\n" /* in */ +" movq %%rdi, 32(%%rsp)\n" /* out */ +" movl %%ebx, 88(%%rsp)\n" /* bits */ +" movq %%rdx, 80(%%rsp)\n" /* hold */ +" movq (%%rsp), %%rax\n" /* restore rbp and rsp */ +" movq 8(%%rsp), %%rbp\n" +" movq %%rax, %%rsp\n" + : + : "m" (ar) + : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi", + "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" + ); +#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 ) + __asm__ __volatile__ ( +" leal %0, %%eax\n" +" movl %%esp, (%%eax)\n" /* save esp, ebp */ +" movl %%ebp, 4(%%eax)\n" +" movl %%eax, %%esp\n" +" movl 8(%%esp), %%esi\n" /* esi = in */ +" movl 16(%%esp), %%edi\n" /* edi = out */ +" movl 40(%%esp), %%edx\n" /* edx = hold */ +" movl 44(%%esp), %%ebx\n" /* ebx = bits */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ + +" cld\n" +" jmp .L_do_loop\n" + +".align 32,0x90\n" +".L_while_test:\n" +" cmpl %%edi, 24(%%esp)\n" /* out < end */ +" jbe .L_break_loop\n" +" cmpl %%esi, 12(%%esp)\n" /* in < last */ +" jbe .L_break_loop\n" + +".L_do_loop:\n" +" cmpb $15, %%bl\n" +" ja .L_get_length_code\n" /* if (15 < bits) */ + +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ + +".L_get_length_code:\n" +" movl 56(%%esp), %%eax\n" /* eax = lmask */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */ + +".L_dolen:\n" +" movb %%ah, %%cl\n" /* cl = this.bits */ +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrl %%cl, %%edx\n" /* hold >>= this.bits */ + +" testb %%al, %%al\n" +" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */ + +" shrl $16, %%eax\n" /* output this.val char */ +" stosb\n" +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_length_base:\n" +" movl %%eax, %%ecx\n" /* len = this */ +" shrl $16, %%ecx\n" /* len = this.val */ +" movl %%ecx, 64(%%esp)\n" /* save len */ +" movb %%al, %%cl\n" + +" testb $16, %%al\n" +" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */ +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_decode_distance\n" /* if (!op) */ +" cmpb %%cl, %%bl\n" +" jae .L_add_bits_to_len\n" /* if (op <= bits) */ + +" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */ +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ +" movb %%ch, %%cl\n" /* move op back to ecx */ + +".L_add_bits_to_len:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrl %%cl, %%edx\n" +" addl %%eax, 64(%%esp)\n" /* len += hold & mask[op] */ + +".L_decode_distance:\n" +" cmpb $15, %%bl\n" +" ja .L_get_distance_code\n" /* if (15 < bits) */ + +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ + +".L_get_distance_code:\n" +" movl 60(%%esp), %%eax\n" /* eax = dmask */ +" movl 36(%%esp), %%ecx\n" /* ecx = dcode */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" movl (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */ + +".L_dodist:\n" +" movl %%eax, %%ebp\n" /* dist = this */ +" shrl $16, %%ebp\n" /* dist = this.val */ +" movb %%ah, %%cl\n" +" subb %%ah, %%bl\n" /* bits -= this.bits */ +" shrl %%cl, %%edx\n" /* hold >>= this.bits */ +" movb %%al, %%cl\n" /* cl = this.op */ + +" testb $16, %%al\n" /* if ((op & 16) == 0) */ +" jz .L_test_for_second_level_dist\n" +" andb $15, %%cl\n" /* op &= 15 */ +" jz .L_check_dist_one\n" +" cmpb %%cl, %%bl\n" +" jae .L_add_bits_to_dist\n" /* if (op <= bits) 97.6% */ + +" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */ +" xorl %%eax, %%eax\n" +" lodsw\n" /* al = *(ushort *)in++ */ +" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */ +" addb $16, %%bl\n" /* bits += 16 */ +" shll %%cl, %%eax\n" +" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */ +" movb %%ch, %%cl\n" /* move op back to ecx */ + +".L_add_bits_to_dist:\n" +" subb %%cl, %%bl\n" +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" /* (1 << op) - 1 */ +" andl %%edx, %%eax\n" /* eax &= hold */ +" shrl %%cl, %%edx\n" +" addl %%eax, %%ebp\n" /* dist += hold & ((1 << op) - 1) */ + +".L_check_window:\n" +" movl %%esi, 8(%%esp)\n" /* save in so from can use it's reg */ +" movl %%edi, %%eax\n" +" subl 20(%%esp), %%eax\n" /* nbytes = out - beg */ + +" cmpl %%ebp, %%eax\n" +" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */ + +" movl 64(%%esp), %%ecx\n" /* ecx = len */ +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ + +" sarl %%ecx\n" +" jnc .L_copy_two\n" /* if len % 2 == 0 */ + +" rep movsw\n" +" movb (%%esi), %%al\n" +" movb %%al, (%%edi)\n" +" incl %%edi\n" + +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".L_copy_two:\n" +" rep movsw\n" +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_check_dist_one:\n" +" cmpl $1, %%ebp\n" /* if dist 1, is a memset */ +" jne .L_check_window\n" +" cmpl %%edi, 20(%%esp)\n" +" je .L_check_window\n" /* out == beg, if outside window */ + +" movl 64(%%esp), %%ecx\n" /* ecx = len */ +" movb -1(%%edi), %%al\n" +" movb %%al, %%ah\n" + +" sarl %%ecx\n" +" jnc .L_set_two\n" +" movb %%al, (%%edi)\n" +" incl %%edi\n" + +".L_set_two:\n" +" rep stosw\n" +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".align 32,0x90\n" +".L_test_for_second_level_length:\n" +" testb $64, %%al\n" +" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl 64(%%esp), %%eax\n" /* eax += len */ +" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/ +" jmp .L_dolen\n" + +".align 32,0x90\n" +".L_test_for_second_level_dist:\n" +" testb $64, %%al\n" +" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */ + +" xorl %%eax, %%eax\n" +" incl %%eax\n" +" shll %%cl, %%eax\n" +" decl %%eax\n" +" andl %%edx, %%eax\n" /* eax &= hold */ +" addl %%ebp, %%eax\n" /* eax += dist */ +" movl 36(%%esp), %%ecx\n" /* ecx = dcode */ +" movl (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/ +" jmp .L_dodist\n" + +".align 32,0x90\n" +".L_clip_window:\n" +" movl %%eax, %%ecx\n" +" movl 48(%%esp), %%eax\n" /* eax = wsize */ +" negl %%ecx\n" /* nbytes = -nbytes */ +" movl 28(%%esp), %%esi\n" /* from = window */ + +" cmpl %%ebp, %%eax\n" +" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */ + +" addl %%ebp, %%ecx\n" /* nbytes = dist - nbytes */ +" cmpl $0, 52(%%esp)\n" +" jne .L_wrap_around_window\n" /* if (write != 0) */ + +" subl %%ecx, %%eax\n" +" addl %%eax, %%esi\n" /* from += wsize - nbytes */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_wrap_around_window:\n" +" movl 52(%%esp), %%eax\n" /* eax = write */ +" cmpl %%eax, %%ecx\n" +" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */ + +" addl 48(%%esp), %%esi\n" /* from += wsize */ +" addl %%eax, %%esi\n" /* from += write */ +" subl %%ecx, %%esi\n" /* from -= nbytes */ +" subl %%eax, %%ecx\n" /* nbytes -= write */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl 28(%%esp), %%esi\n" /* from = window */ +" movl 52(%%esp), %%ecx\n" /* nbytes = write */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" + +".align 32,0x90\n" +".L_contiguous_in_window:\n" +" addl %%eax, %%esi\n" +" subl %%ecx, %%esi\n" /* from += write - nbytes */ + +" movl 64(%%esp), %%eax\n" /* eax = len */ +" cmpl %%ecx, %%eax\n" +" jbe .L_do_copy\n" /* if (nbytes >= len) */ + +" subl %%ecx, %%eax\n" /* len -= nbytes */ +" rep movsb\n" +" movl %%edi, %%esi\n" +" subl %%ebp, %%esi\n" /* from = out - dist */ +" jmp .L_do_copy\n" /* if (nbytes >= len) */ + +".align 32,0x90\n" +".L_do_copy:\n" +" movl %%eax, %%ecx\n" +" rep movsb\n" + +" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */ +" movl 32(%%esp), %%ebp\n" /* ebp = lcode */ +" jmp .L_while_test\n" + +".L_test_for_end_of_block:\n" +" testb $32, %%al\n" +" jz .L_invalid_literal_length_code\n" +" movl $1, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_literal_length_code:\n" +" movl $2, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_code:\n" +" movl $3, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_invalid_distance_too_far:\n" +" movl 8(%%esp), %%esi\n" +" movl $4, 72(%%esp)\n" +" jmp .L_break_loop_with_status\n" + +".L_break_loop:\n" +" movl $0, 72(%%esp)\n" + +".L_break_loop_with_status:\n" +/* put in, out, bits, and hold back into ar and pop esp */ +" movl %%esi, 8(%%esp)\n" /* save in */ +" movl %%edi, 16(%%esp)\n" /* save out */ +" movl %%ebx, 44(%%esp)\n" /* save bits */ +" movl %%edx, 40(%%esp)\n" /* save hold */ +" movl 4(%%esp), %%ebp\n" /* restore esp, ebp */ +" movl (%%esp), %%esp\n" + : + : "m" (ar) + : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi" + ); +#elif defined( _MSC_VER ) && ! defined( _M_AMD64 ) + __asm { + lea eax, ar + mov [eax], esp /* save esp, ebp */ + mov [eax+4], ebp + mov esp, eax + mov esi, [esp+8] /* esi = in */ + mov edi, [esp+16] /* edi = out */ + mov edx, [esp+40] /* edx = hold */ + mov ebx, [esp+44] /* ebx = bits */ + mov ebp, [esp+32] /* ebp = lcode */ + + cld + jmp L_do_loop + +ALIGN 4 +L_while_test: + cmp [esp+24], edi + jbe L_break_loop + cmp [esp+12], esi + jbe L_break_loop + +L_do_loop: + cmp bl, 15 + ja L_get_length_code /* if (15 < bits) */ + + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + +L_get_length_code: + mov eax, [esp+56] /* eax = lmask */ + and eax, edx /* eax &= hold */ + mov eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */ + +L_dolen: + mov cl, ah /* cl = this.bits */ + sub bl, ah /* bits -= this.bits */ + shr edx, cl /* hold >>= this.bits */ + + test al, al + jnz L_test_for_length_base /* if (op != 0) 45.7% */ + + shr eax, 16 /* output this.val char */ + stosb + jmp L_while_test + +ALIGN 4 +L_test_for_length_base: + mov ecx, eax /* len = this */ + shr ecx, 16 /* len = this.val */ + mov [esp+64], ecx /* save len */ + mov cl, al + + test al, 16 + jz L_test_for_second_level_length /* if ((op & 16) == 0) 8% */ + and cl, 15 /* op &= 15 */ + jz L_decode_distance /* if (!op) */ + cmp bl, cl + jae L_add_bits_to_len /* if (op <= bits) */ + + mov ch, cl /* stash op in ch, freeing cl */ + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + mov cl, ch /* move op back to ecx */ + +L_add_bits_to_len: + sub bl, cl + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + shr edx, cl + add [esp+64], eax /* len += hold & mask[op] */ + +L_decode_distance: + cmp bl, 15 + ja L_get_distance_code /* if (15 < bits) */ + + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + +L_get_distance_code: + mov eax, [esp+60] /* eax = dmask */ + mov ecx, [esp+36] /* ecx = dcode */ + and eax, edx /* eax &= hold */ + mov eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */ + +L_dodist: + mov ebp, eax /* dist = this */ + shr ebp, 16 /* dist = this.val */ + mov cl, ah + sub bl, ah /* bits -= this.bits */ + shr edx, cl /* hold >>= this.bits */ + mov cl, al /* cl = this.op */ + + test al, 16 /* if ((op & 16) == 0) */ + jz L_test_for_second_level_dist + and cl, 15 /* op &= 15 */ + jz L_check_dist_one + cmp bl, cl + jae L_add_bits_to_dist /* if (op <= bits) 97.6% */ + + mov ch, cl /* stash op in ch, freeing cl */ + xor eax, eax + lodsw /* al = *(ushort *)in++ */ + mov cl, bl /* cl = bits, needs it for shifting */ + add bl, 16 /* bits += 16 */ + shl eax, cl + or edx, eax /* hold |= *((ushort *)in)++ << bits */ + mov cl, ch /* move op back to ecx */ + +L_add_bits_to_dist: + sub bl, cl + xor eax, eax + inc eax + shl eax, cl + dec eax /* (1 << op) - 1 */ + and eax, edx /* eax &= hold */ + shr edx, cl + add ebp, eax /* dist += hold & ((1 << op) - 1) */ + +L_check_window: + mov [esp+8], esi /* save in so from can use it's reg */ + mov eax, edi + sub eax, [esp+20] /* nbytes = out - beg */ + + cmp eax, ebp + jb L_clip_window /* if (dist > nbytes) 4.2% */ + + mov ecx, [esp+64] /* ecx = len */ + mov esi, edi + sub esi, ebp /* from = out - dist */ + + sar ecx, 1 + jnc L_copy_two + + rep movsw + mov al, [esi] + mov [edi], al + inc edi + + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +L_copy_two: + rep movsw + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +ALIGN 4 +L_check_dist_one: + cmp ebp, 1 /* if dist 1, is a memset */ + jne L_check_window + cmp [esp+20], edi + je L_check_window /* out == beg, if outside window */ + + mov ecx, [esp+64] /* ecx = len */ + mov al, [edi-1] + mov ah, al + + sar ecx, 1 + jnc L_set_two + mov [edi], al /* memset out with from[-1] */ + inc edi + +L_set_two: + rep stosw + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +ALIGN 4 +L_test_for_second_level_length: + test al, 64 + jnz L_test_for_end_of_block /* if ((op & 64) != 0) */ + + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + add eax, [esp+64] /* eax += len */ + mov eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/ + jmp L_dolen + +ALIGN 4 +L_test_for_second_level_dist: + test al, 64 + jnz L_invalid_distance_code /* if ((op & 64) != 0) */ + + xor eax, eax + inc eax + shl eax, cl + dec eax + and eax, edx /* eax &= hold */ + add eax, ebp /* eax += dist */ + mov ecx, [esp+36] /* ecx = dcode */ + mov eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/ + jmp L_dodist + +ALIGN 4 +L_clip_window: + mov ecx, eax + mov eax, [esp+48] /* eax = wsize */ + neg ecx /* nbytes = -nbytes */ + mov esi, [esp+28] /* from = window */ + + cmp eax, ebp + jb L_invalid_distance_too_far /* if (dist > wsize) */ + + add ecx, ebp /* nbytes = dist - nbytes */ + cmp dword ptr [esp+52], 0 + jne L_wrap_around_window /* if (write != 0) */ + + sub eax, ecx + add esi, eax /* from += wsize - nbytes */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_wrap_around_window: + mov eax, [esp+52] /* eax = write */ + cmp ecx, eax + jbe L_contiguous_in_window /* if (write >= nbytes) */ + + add esi, [esp+48] /* from += wsize */ + add esi, eax /* from += write */ + sub esi, ecx /* from -= nbytes */ + sub ecx, eax /* nbytes -= write */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, [esp+28] /* from = window */ + mov ecx, [esp+52] /* nbytes = write */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_contiguous_in_window: + add esi, eax + sub esi, ecx /* from += write - nbytes */ + + mov eax, [esp+64] /* eax = len */ + cmp eax, ecx + jbe L_do_copy /* if (nbytes >= len) */ + + sub eax, ecx /* len -= nbytes */ + rep movsb + mov esi, edi + sub esi, ebp /* from = out - dist */ + jmp L_do_copy + +ALIGN 4 +L_do_copy: + mov ecx, eax + rep movsb + + mov esi, [esp+8] /* move in back to %esi, toss from */ + mov ebp, [esp+32] /* ebp = lcode */ + jmp L_while_test + +L_test_for_end_of_block: + test al, 32 + jz L_invalid_literal_length_code + mov dword ptr [esp+72], 1 + jmp L_break_loop_with_status + +L_invalid_literal_length_code: + mov dword ptr [esp+72], 2 + jmp L_break_loop_with_status + +L_invalid_distance_code: + mov dword ptr [esp+72], 3 + jmp L_break_loop_with_status + +L_invalid_distance_too_far: + mov esi, [esp+4] + mov dword ptr [esp+72], 4 + jmp L_break_loop_with_status + +L_break_loop: + mov dword ptr [esp+72], 0 + +L_break_loop_with_status: +/* put in, out, bits, and hold back into ar and pop esp */ + mov [esp+8], esi /* save in */ + mov [esp+16], edi /* save out */ + mov [esp+44], ebx /* save bits */ + mov [esp+40], edx /* save hold */ + mov ebp, [esp+4] /* restore esp, ebp */ + mov esp, [esp] + } +#else +#error "x86 architecture not defined" +#endif + + if (ar.status > 1) { + if (ar.status == 2) + strm->msg = "invalid literal/length code"; + else if (ar.status == 3) + strm->msg = "invalid distance code"; + else + strm->msg = "invalid distance too far back"; + state->mode = BAD; + } + else if ( ar.status == 1 ) { + state->mode = TYPE; + } + + /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ + ar.len = ar.bits >> 3; + ar.in -= ar.len; + ar.bits -= ar.len << 3; + ar.hold &= (1U << ar.bits) - 1; + + /* update state and return */ + strm->next_in = ar.in; + strm->next_out = ar.out; + strm->avail_in = (unsigned)(ar.in < ar.last ? + PAD_AVAIL_IN + (ar.last - ar.in) : + PAD_AVAIL_IN - (ar.in - ar.last)); + strm->avail_out = (unsigned)(ar.out < ar.end ? + PAD_AVAIL_OUT + (ar.end - ar.out) : + PAD_AVAIL_OUT - (ar.out - ar.end)); + state->hold = ar.hold; + state->bits = ar.bits; + return; +} + diff --git a/3party/zlib/contrib/inflate86/inffast.S b/3party/zlib/contrib/inflate86/inffast.S new file mode 100644 index 0000000000..2245a2905b --- /dev/null +++ b/3party/zlib/contrib/inflate86/inffast.S @@ -0,0 +1,1368 @@ +/* + * inffast.S is a hand tuned assembler version of: + * + * inffast.c -- fast decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Copyright (C) 2003 Chris Anderson <christop@charm.net> + * Please use the copyright conditions above. + * + * This version (Jan-23-2003) of inflate_fast was coded and tested under + * GNU/Linux on a pentium 3, using the gcc-3.2 compiler distribution. On that + * machine, I found that gzip style archives decompressed about 20% faster than + * the gcc-3.2 -O3 -fomit-frame-pointer compiled version. Your results will + * depend on how large of a buffer is used for z_stream.next_in & next_out + * (8K-32K worked best for my 256K cpu cache) and how much overhead there is in + * stream processing I/O and crc32/addler32. In my case, this routine used + * 70% of the cpu time and crc32 used 20%. + * + * I am confident that this version will work in the general case, but I have + * not tested a wide variety of datasets or a wide variety of platforms. + * + * Jan-24-2003 -- Added -DUSE_MMX define for slightly faster inflating. + * It should be a runtime flag instead of compile time flag... + * + * Jan-26-2003 -- Added runtime check for MMX support with cpuid instruction. + * With -DUSE_MMX, only MMX code is compiled. With -DNO_MMX, only non-MMX code + * is compiled. Without either option, runtime detection is enabled. Runtime + * detection should work on all modern cpus and the recomended algorithm (flip + * ID bit on eflags and then use the cpuid instruction) is used in many + * multimedia applications. Tested under win2k with gcc-2.95 and gas-2.12 + * distributed with cygwin3. Compiling with gcc-2.95 -c inffast.S -o + * inffast.obj generates a COFF object which can then be linked with MSVC++ + * compiled code. Tested under FreeBSD 4.7 with gcc-2.95. + * + * Jan-28-2003 -- Tested Athlon XP... MMX mode is slower than no MMX (and + * slower than compiler generated code). Adjusted cpuid check to use the MMX + * code only for Pentiums < P4 until I have more data on the P4. Speed + * improvment is only about 15% on the Athlon when compared with code generated + * with MSVC++. Not sure yet, but I think the P4 will also be slower using the + * MMX mode because many of it's x86 ALU instructions execute in .5 cycles and + * have less latency than MMX ops. Added code to buffer the last 11 bytes of + * the input stream since the MMX code grabs bits in chunks of 32, which + * differs from the inffast.c algorithm. I don't think there would have been + * read overruns where a page boundary was crossed (a segfault), but there + * could have been overruns when next_in ends on unaligned memory (unintialized + * memory read). + * + * Mar-13-2003 -- P4 MMX is slightly slower than P4 NO_MMX. I created a C + * version of the non-MMX code so that it doesn't depend on zstrm and zstate + * structure offsets which are hard coded in this file. This was last tested + * with zlib-1.2.0 which is currently in beta testing, newer versions of this + * and inffas86.c can be found at http://www.eetbeetee.com/zlib/ and + * http://www.charm.net/~christop/zlib/ + */ + + +/* + * if you have underscore linking problems (_inflate_fast undefined), try + * using -DGAS_COFF + */ +#if ! defined( GAS_COFF ) && ! defined( GAS_ELF ) + +#if defined( WIN32 ) || defined( __CYGWIN__ ) +#define GAS_COFF /* windows object format */ +#else +#define GAS_ELF +#endif + +#endif /* ! GAS_COFF && ! GAS_ELF */ + + +#if defined( GAS_COFF ) + +/* coff externals have underscores */ +#define inflate_fast _inflate_fast +#define inflate_fast_use_mmx _inflate_fast_use_mmx + +#endif /* GAS_COFF */ + + +.file "inffast.S" + +.globl inflate_fast + +.text +.align 4,0 +.L_invalid_literal_length_code_msg: +.string "invalid literal/length code" + +.align 4,0 +.L_invalid_distance_code_msg: +.string "invalid distance code" + +.align 4,0 +.L_invalid_distance_too_far_msg: +.string "invalid distance too far back" + +#if ! defined( NO_MMX ) +.align 4,0 +.L_mask: /* mask[N] = ( 1 << N ) - 1 */ +.long 0 +.long 1 +.long 3 +.long 7 +.long 15 +.long 31 +.long 63 +.long 127 +.long 255 +.long 511 +.long 1023 +.long 2047 +.long 4095 +.long 8191 +.long 16383 +.long 32767 +.long 65535 +.long 131071 +.long 262143 +.long 524287 +.long 1048575 +.long 2097151 +.long 4194303 +.long 8388607 +.long 16777215 +.long 33554431 +.long 67108863 +.long 134217727 +.long 268435455 +.long 536870911 +.long 1073741823 +.long 2147483647 +.long 4294967295 +#endif /* NO_MMX */ + +.text + +/* + * struct z_stream offsets, in zlib.h + */ +#define next_in_strm 0 /* strm->next_in */ +#define avail_in_strm 4 /* strm->avail_in */ +#define next_out_strm 12 /* strm->next_out */ +#define avail_out_strm 16 /* strm->avail_out */ +#define msg_strm 24 /* strm->msg */ +#define state_strm 28 /* strm->state */ + +/* + * struct inflate_state offsets, in inflate.h + */ +#define mode_state 0 /* state->mode */ +#define wsize_state 32 /* state->wsize */ +#define write_state 40 /* state->write */ +#define window_state 44 /* state->window */ +#define hold_state 48 /* state->hold */ +#define bits_state 52 /* state->bits */ +#define lencode_state 68 /* state->lencode */ +#define distcode_state 72 /* state->distcode */ +#define lenbits_state 76 /* state->lenbits */ +#define distbits_state 80 /* state->distbits */ + +/* + * inflate_fast's activation record + */ +#define local_var_size 64 /* how much local space for vars */ +#define strm_sp 88 /* first arg: z_stream * (local_var_size + 24) */ +#define start_sp 92 /* second arg: unsigned int (local_var_size + 28) */ + +/* + * offsets for local vars on stack + */ +#define out 60 /* unsigned char* */ +#define window 56 /* unsigned char* */ +#define wsize 52 /* unsigned int */ +#define write 48 /* unsigned int */ +#define in 44 /* unsigned char* */ +#define beg 40 /* unsigned char* */ +#define buf 28 /* char[ 12 ] */ +#define len 24 /* unsigned int */ +#define last 20 /* unsigned char* */ +#define end 16 /* unsigned char* */ +#define dcode 12 /* code* */ +#define lcode 8 /* code* */ +#define dmask 4 /* unsigned int */ +#define lmask 0 /* unsigned int */ + +/* + * typedef enum inflate_mode consts, in inflate.h + */ +#define INFLATE_MODE_TYPE 11 /* state->mode flags enum-ed in inflate.h */ +#define INFLATE_MODE_BAD 26 + + +#if ! defined( USE_MMX ) && ! defined( NO_MMX ) + +#define RUN_TIME_MMX + +#define CHECK_MMX 1 +#define DO_USE_MMX 2 +#define DONT_USE_MMX 3 + +.globl inflate_fast_use_mmx + +.data + +.align 4,0 +inflate_fast_use_mmx: /* integer flag for run time control 1=check,2=mmx,3=no */ +.long CHECK_MMX + +#if defined( GAS_ELF ) +/* elf info */ +.type inflate_fast_use_mmx,@object +.size inflate_fast_use_mmx,4 +#endif + +#endif /* RUN_TIME_MMX */ + +#if defined( GAS_COFF ) +/* coff info: scl 2 = extern, type 32 = function */ +.def inflate_fast; .scl 2; .type 32; .endef +#endif + +.text + +.align 32,0x90 +inflate_fast: + pushl %edi + pushl %esi + pushl %ebp + pushl %ebx + pushf /* save eflags (strm_sp, state_sp assumes this is 32 bits) */ + subl $local_var_size, %esp + cld + +#define strm_r %esi +#define state_r %edi + + movl strm_sp(%esp), strm_r + movl state_strm(strm_r), state_r + + /* in = strm->next_in; + * out = strm->next_out; + * last = in + strm->avail_in - 11; + * beg = out - (start - strm->avail_out); + * end = out + (strm->avail_out - 257); + */ + movl avail_in_strm(strm_r), %edx + movl next_in_strm(strm_r), %eax + + addl %eax, %edx /* avail_in += next_in */ + subl $11, %edx /* avail_in -= 11 */ + + movl %eax, in(%esp) + movl %edx, last(%esp) + + movl start_sp(%esp), %ebp + movl avail_out_strm(strm_r), %ecx + movl next_out_strm(strm_r), %ebx + + subl %ecx, %ebp /* start -= avail_out */ + negl %ebp /* start = -start */ + addl %ebx, %ebp /* start += next_out */ + + subl $257, %ecx /* avail_out -= 257 */ + addl %ebx, %ecx /* avail_out += out */ + + movl %ebx, out(%esp) + movl %ebp, beg(%esp) + movl %ecx, end(%esp) + + /* wsize = state->wsize; + * write = state->write; + * window = state->window; + * hold = state->hold; + * bits = state->bits; + * lcode = state->lencode; + * dcode = state->distcode; + * lmask = ( 1 << state->lenbits ) - 1; + * dmask = ( 1 << state->distbits ) - 1; + */ + + movl lencode_state(state_r), %eax + movl distcode_state(state_r), %ecx + + movl %eax, lcode(%esp) + movl %ecx, dcode(%esp) + + movl $1, %eax + movl lenbits_state(state_r), %ecx + shll %cl, %eax + decl %eax + movl %eax, lmask(%esp) + + movl $1, %eax + movl distbits_state(state_r), %ecx + shll %cl, %eax + decl %eax + movl %eax, dmask(%esp) + + movl wsize_state(state_r), %eax + movl write_state(state_r), %ecx + movl window_state(state_r), %edx + + movl %eax, wsize(%esp) + movl %ecx, write(%esp) + movl %edx, window(%esp) + + movl hold_state(state_r), %ebp + movl bits_state(state_r), %ebx + +#undef strm_r +#undef state_r + +#define in_r %esi +#define from_r %esi +#define out_r %edi + + movl in(%esp), in_r + movl last(%esp), %ecx + cmpl in_r, %ecx + ja .L_align_long /* if in < last */ + + addl $11, %ecx /* ecx = &in[ avail_in ] */ + subl in_r, %ecx /* ecx = avail_in */ + movl $12, %eax + subl %ecx, %eax /* eax = 12 - avail_in */ + leal buf(%esp), %edi + rep movsb /* memcpy( buf, in, avail_in ) */ + movl %eax, %ecx + xorl %eax, %eax + rep stosb /* memset( &buf[ avail_in ], 0, 12 - avail_in ) */ + leal buf(%esp), in_r /* in = buf */ + movl in_r, last(%esp) /* last = in, do just one iteration */ + jmp .L_is_aligned + + /* align in_r on long boundary */ +.L_align_long: + testl $3, in_r + jz .L_is_aligned + xorl %eax, %eax + movb (in_r), %al + incl in_r + movl %ebx, %ecx + addl $8, %ebx + shll %cl, %eax + orl %eax, %ebp + jmp .L_align_long + +.L_is_aligned: + movl out(%esp), out_r + +#if defined( NO_MMX ) + jmp .L_do_loop +#endif + +#if defined( USE_MMX ) + jmp .L_init_mmx +#endif + +/*** Runtime MMX check ***/ + +#if defined( RUN_TIME_MMX ) +.L_check_mmx: + cmpl $DO_USE_MMX, inflate_fast_use_mmx + je .L_init_mmx + ja .L_do_loop /* > 2 */ + + pushl %eax + pushl %ebx + pushl %ecx + pushl %edx + pushf + movl (%esp), %eax /* copy eflags to eax */ + xorl $0x200000, (%esp) /* try toggling ID bit of eflags (bit 21) + * to see if cpu supports cpuid... + * ID bit method not supported by NexGen but + * bios may load a cpuid instruction and + * cpuid may be disabled on Cyrix 5-6x86 */ + popf + pushf + popl %edx /* copy new eflags to edx */ + xorl %eax, %edx /* test if ID bit is flipped */ + jz .L_dont_use_mmx /* not flipped if zero */ + xorl %eax, %eax + cpuid + cmpl $0x756e6547, %ebx /* check for GenuineIntel in ebx,ecx,edx */ + jne .L_dont_use_mmx + cmpl $0x6c65746e, %ecx + jne .L_dont_use_mmx + cmpl $0x49656e69, %edx + jne .L_dont_use_mmx + movl $1, %eax + cpuid /* get cpu features */ + shrl $8, %eax + andl $15, %eax + cmpl $6, %eax /* check for Pentium family, is 0xf for P4 */ + jne .L_dont_use_mmx + testl $0x800000, %edx /* test if MMX feature is set (bit 23) */ + jnz .L_use_mmx + jmp .L_dont_use_mmx +.L_use_mmx: + movl $DO_USE_MMX, inflate_fast_use_mmx + jmp .L_check_mmx_pop +.L_dont_use_mmx: + movl $DONT_USE_MMX, inflate_fast_use_mmx +.L_check_mmx_pop: + popl %edx + popl %ecx + popl %ebx + popl %eax + jmp .L_check_mmx +#endif + + +/*** Non-MMX code ***/ + +#if defined ( NO_MMX ) || defined( RUN_TIME_MMX ) + +#define hold_r %ebp +#define bits_r %bl +#define bitslong_r %ebx + +.align 32,0x90 +.L_while_test: + /* while (in < last && out < end) + */ + cmpl out_r, end(%esp) + jbe .L_break_loop /* if (out >= end) */ + + cmpl in_r, last(%esp) + jbe .L_break_loop + +.L_do_loop: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out + * + * do { + * if (bits < 15) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * this = lcode[hold & lmask] + */ + cmpb $15, bits_r + ja .L_get_length_code /* if (15 < bits) */ + + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + +.L_get_length_code: + movl lmask(%esp), %edx /* edx = lmask */ + movl lcode(%esp), %ecx /* ecx = lcode */ + andl hold_r, %edx /* edx &= hold */ + movl (%ecx,%edx,4), %eax /* eax = lcode[hold & lmask] */ + +.L_dolen: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out + * + * dolen: + * bits -= this.bits; + * hold >>= this.bits + */ + movb %ah, %cl /* cl = this.bits */ + subb %ah, bits_r /* bits -= this.bits */ + shrl %cl, hold_r /* hold >>= this.bits */ + + /* check if op is a literal + * if (op == 0) { + * PUP(out) = this.val; + * } + */ + testb %al, %al + jnz .L_test_for_length_base /* if (op != 0) 45.7% */ + + shrl $16, %eax /* output this.val char */ + stosb + jmp .L_while_test + +.L_test_for_length_base: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = len + * + * else if (op & 16) { + * len = this.val + * op &= 15 + * if (op) { + * if (op > bits) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * len += hold & mask[op]; + * bits -= op; + * hold >>= op; + * } + */ +#define len_r %edx + movl %eax, len_r /* len = this */ + shrl $16, len_r /* len = this.val */ + movb %al, %cl + + testb $16, %al + jz .L_test_for_second_level_length /* if ((op & 16) == 0) 8% */ + andb $15, %cl /* op &= 15 */ + jz .L_save_len /* if (!op) */ + cmpb %cl, bits_r + jae .L_add_bits_to_len /* if (op <= bits) */ + + movb %cl, %ch /* stash op in ch, freeing cl */ + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + movb %ch, %cl /* move op back to ecx */ + +.L_add_bits_to_len: + movl $1, %eax + shll %cl, %eax + decl %eax + subb %cl, bits_r + andl hold_r, %eax /* eax &= hold */ + shrl %cl, hold_r + addl %eax, len_r /* len += hold & mask[op] */ + +.L_save_len: + movl len_r, len(%esp) /* save len */ +#undef len_r + +.L_decode_distance: + /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * + * if (bits < 15) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * this = dcode[hold & dmask]; + * dodist: + * bits -= this.bits; + * hold >>= this.bits; + * op = this.op; + */ + + cmpb $15, bits_r + ja .L_get_distance_code /* if (15 < bits) */ + + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + +.L_get_distance_code: + movl dmask(%esp), %edx /* edx = dmask */ + movl dcode(%esp), %ecx /* ecx = dcode */ + andl hold_r, %edx /* edx &= hold */ + movl (%ecx,%edx,4), %eax /* eax = dcode[hold & dmask] */ + +#define dist_r %edx +.L_dodist: + movl %eax, dist_r /* dist = this */ + shrl $16, dist_r /* dist = this.val */ + movb %ah, %cl + subb %ah, bits_r /* bits -= this.bits */ + shrl %cl, hold_r /* hold >>= this.bits */ + + /* if (op & 16) { + * dist = this.val + * op &= 15 + * if (op > bits) { + * hold |= *((unsigned short *)in)++ << bits; + * bits += 16 + * } + * dist += hold & mask[op]; + * bits -= op; + * hold >>= op; + */ + movb %al, %cl /* cl = this.op */ + + testb $16, %al /* if ((op & 16) == 0) */ + jz .L_test_for_second_level_dist + andb $15, %cl /* op &= 15 */ + jz .L_check_dist_one + cmpb %cl, bits_r + jae .L_add_bits_to_dist /* if (op <= bits) 97.6% */ + + movb %cl, %ch /* stash op in ch, freeing cl */ + xorl %eax, %eax + lodsw /* al = *(ushort *)in++ */ + movb bits_r, %cl /* cl = bits, needs it for shifting */ + addb $16, bits_r /* bits += 16 */ + shll %cl, %eax + orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */ + movb %ch, %cl /* move op back to ecx */ + +.L_add_bits_to_dist: + movl $1, %eax + shll %cl, %eax + decl %eax /* (1 << op) - 1 */ + subb %cl, bits_r + andl hold_r, %eax /* eax &= hold */ + shrl %cl, hold_r + addl %eax, dist_r /* dist += hold & ((1 << op) - 1) */ + jmp .L_check_window + +.L_check_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes + * + * nbytes = out - beg; + * if (dist <= nbytes) { + * from = out - dist; + * do { + * PUP(out) = PUP(from); + * } while (--len > 0) { + * } + */ + + movl in_r, in(%esp) /* save in so from can use it's reg */ + movl out_r, %eax + subl beg(%esp), %eax /* nbytes = out - beg */ + + cmpl dist_r, %eax + jb .L_clip_window /* if (dist > nbytes) 4.2% */ + + movl len(%esp), %ecx + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + + subl $3, %ecx + movb (from_r), %al + movb %al, (out_r) + movb 1(from_r), %al + movb 2(from_r), %dl + addl $3, from_r + movb %al, 1(out_r) + movb %dl, 2(out_r) + addl $3, out_r + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + jmp .L_while_test + +.align 16,0x90 +.L_check_dist_one: + cmpl $1, dist_r + jne .L_check_window + cmpl out_r, beg(%esp) + je .L_check_window + + decl out_r + movl len(%esp), %ecx + movb (out_r), %al + subl $3, %ecx + + movb %al, 1(out_r) + movb %al, 2(out_r) + movb %al, 3(out_r) + addl $4, out_r + rep stosb + + jmp .L_while_test + +.align 16,0x90 +.L_test_for_second_level_length: + /* else if ((op & 64) == 0) { + * this = lcode[this.val + (hold & mask[op])]; + * } + */ + testb $64, %al + jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */ + + movl $1, %eax + shll %cl, %eax + decl %eax + andl hold_r, %eax /* eax &= hold */ + addl %edx, %eax /* eax += this.val */ + movl lcode(%esp), %edx /* edx = lcode */ + movl (%edx,%eax,4), %eax /* eax = lcode[val + (hold&mask[op])] */ + jmp .L_dolen + +.align 16,0x90 +.L_test_for_second_level_dist: + /* else if ((op & 64) == 0) { + * this = dcode[this.val + (hold & mask[op])]; + * } + */ + testb $64, %al + jnz .L_invalid_distance_code /* if ((op & 64) != 0) */ + + movl $1, %eax + shll %cl, %eax + decl %eax + andl hold_r, %eax /* eax &= hold */ + addl %edx, %eax /* eax += this.val */ + movl dcode(%esp), %edx /* edx = dcode */ + movl (%edx,%eax,4), %eax /* eax = dcode[val + (hold&mask[op])] */ + jmp .L_dodist + +.align 16,0x90 +.L_clip_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes + * + * else { + * if (dist > wsize) { + * invalid distance + * } + * from = window; + * nbytes = dist - nbytes; + * if (write == 0) { + * from += wsize - nbytes; + */ +#define nbytes_r %ecx + movl %eax, nbytes_r + movl wsize(%esp), %eax /* prepare for dist compare */ + negl nbytes_r /* nbytes = -nbytes */ + movl window(%esp), from_r /* from = window */ + + cmpl dist_r, %eax + jb .L_invalid_distance_too_far /* if (dist > wsize) */ + + addl dist_r, nbytes_r /* nbytes = dist - nbytes */ + cmpl $0, write(%esp) + jne .L_wrap_around_window /* if (write != 0) */ + + subl nbytes_r, %eax + addl %eax, from_r /* from += wsize - nbytes */ + + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = len + * + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = out - dist; + * } + * } + */ +#define len_r %eax + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + +.L_wrap_around_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = write, %eax = len + * + * else if (write < nbytes) { + * from += wsize + write - nbytes; + * nbytes -= write; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = window; + * nbytes = write; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while(--nbytes); + * from = out - dist; + * } + * } + * } + */ +#define write_r %eax + movl write(%esp), write_r + cmpl write_r, nbytes_r + jbe .L_contiguous_in_window /* if (write >= nbytes) */ + + addl wsize(%esp), from_r + addl write_r, from_r + subl nbytes_r, from_r /* from += wsize + write - nbytes */ + subl write_r, nbytes_r /* nbytes -= write */ +#undef write_r + + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl window(%esp), from_r /* from = window */ + movl write(%esp), nbytes_r /* nbytes = write */ + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1 + +.L_contiguous_in_window: + /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist + * %ecx = nbytes, %eax = write, %eax = len + * + * else { + * from += write - nbytes; + * if (nbytes < len) { + * len -= nbytes; + * do { + * PUP(out) = PUP(from); + * } while (--nbytes); + * from = out - dist; + * } + * } + */ +#define write_r %eax + addl write_r, from_r + subl nbytes_r, from_r /* from += write - nbytes */ +#undef write_r + + movl len(%esp), len_r + cmpl nbytes_r, len_r + jbe .L_do_copy1 /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + +.L_do_copy1: + /* regs: %esi = from, %esi = in, %ebp = hold, %bl = bits, %edi = out + * %eax = len + * + * while (len > 0) { + * PUP(out) = PUP(from); + * len--; + * } + * } + * } while (in < last && out < end); + */ +#undef nbytes_r +#define in_r %esi + movl len_r, %ecx + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + jmp .L_while_test + +#undef len_r +#undef dist_r + +#endif /* NO_MMX || RUN_TIME_MMX */ + + +/*** MMX code ***/ + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +.align 32,0x90 +.L_init_mmx: + emms + +#undef bits_r +#undef bitslong_r +#define bitslong_r %ebp +#define hold_mm %mm0 + movd %ebp, hold_mm + movl %ebx, bitslong_r + +#define used_mm %mm1 +#define dmask2_mm %mm2 +#define lmask2_mm %mm3 +#define lmask_mm %mm4 +#define dmask_mm %mm5 +#define tmp_mm %mm6 + + movd lmask(%esp), lmask_mm + movq lmask_mm, lmask2_mm + movd dmask(%esp), dmask_mm + movq dmask_mm, dmask2_mm + pxor used_mm, used_mm + movl lcode(%esp), %ebx /* ebx = lcode */ + jmp .L_do_loop_mmx + +.align 32,0x90 +.L_while_test_mmx: + /* while (in < last && out < end) + */ + cmpl out_r, end(%esp) + jbe .L_break_loop /* if (out >= end) */ + + cmpl in_r, last(%esp) + jbe .L_break_loop + +.L_do_loop_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + + cmpl $32, bitslong_r + ja .L_get_length_code_mmx /* if (32 < bits) */ + + movd bitslong_r, tmp_mm + movd (in_r), %mm7 + addl $4, in_r + psllq tmp_mm, %mm7 + addl $32, bitslong_r + por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */ + +.L_get_length_code_mmx: + pand hold_mm, lmask_mm + movd lmask_mm, %eax + movq lmask2_mm, lmask_mm + movl (%ebx,%eax,4), %eax /* eax = lcode[hold & lmask] */ + +.L_dolen_mmx: + movzbl %ah, %ecx /* ecx = this.bits */ + movd %ecx, used_mm + subl %ecx, bitslong_r /* bits -= this.bits */ + + testb %al, %al + jnz .L_test_for_length_base_mmx /* if (op != 0) 45.7% */ + + shrl $16, %eax /* output this.val char */ + stosb + jmp .L_while_test_mmx + +.L_test_for_length_base_mmx: +#define len_r %edx + movl %eax, len_r /* len = this */ + shrl $16, len_r /* len = this.val */ + + testb $16, %al + jz .L_test_for_second_level_length_mmx /* if ((op & 16) == 0) 8% */ + andl $15, %eax /* op &= 15 */ + jz .L_decode_distance_mmx /* if (!op) */ + + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd %eax, used_mm + movd hold_mm, %ecx + subl %eax, bitslong_r + andl .L_mask(,%eax,4), %ecx + addl %ecx, len_r /* len += hold & mask[op] */ + +.L_decode_distance_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + + cmpl $32, bitslong_r + ja .L_get_dist_code_mmx /* if (32 < bits) */ + + movd bitslong_r, tmp_mm + movd (in_r), %mm7 + addl $4, in_r + psllq tmp_mm, %mm7 + addl $32, bitslong_r + por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */ + +.L_get_dist_code_mmx: + movl dcode(%esp), %ebx /* ebx = dcode */ + pand hold_mm, dmask_mm + movd dmask_mm, %eax + movq dmask2_mm, dmask_mm + movl (%ebx,%eax,4), %eax /* eax = dcode[hold & lmask] */ + +.L_dodist_mmx: +#define dist_r %ebx + movzbl %ah, %ecx /* ecx = this.bits */ + movl %eax, dist_r + shrl $16, dist_r /* dist = this.val */ + subl %ecx, bitslong_r /* bits -= this.bits */ + movd %ecx, used_mm + + testb $16, %al /* if ((op & 16) == 0) */ + jz .L_test_for_second_level_dist_mmx + andl $15, %eax /* op &= 15 */ + jz .L_check_dist_one_mmx + +.L_add_bits_to_dist_mmx: + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd %eax, used_mm /* save bit length of current op */ + movd hold_mm, %ecx /* get the next bits on input stream */ + subl %eax, bitslong_r /* bits -= op bits */ + andl .L_mask(,%eax,4), %ecx /* ecx = hold & mask[op] */ + addl %ecx, dist_r /* dist += hold & mask[op] */ + +.L_check_window_mmx: + movl in_r, in(%esp) /* save in so from can use it's reg */ + movl out_r, %eax + subl beg(%esp), %eax /* nbytes = out - beg */ + + cmpl dist_r, %eax + jb .L_clip_window_mmx /* if (dist > nbytes) 4.2% */ + + movl len_r, %ecx + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + + subl $3, %ecx + movb (from_r), %al + movb %al, (out_r) + movb 1(from_r), %al + movb 2(from_r), %dl + addl $3, from_r + movb %al, 1(out_r) + movb %dl, 2(out_r) + addl $3, out_r + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +.align 16,0x90 +.L_check_dist_one_mmx: + cmpl $1, dist_r + jne .L_check_window_mmx + cmpl out_r, beg(%esp) + je .L_check_window_mmx + + decl out_r + movl len_r, %ecx + movb (out_r), %al + subl $3, %ecx + + movb %al, 1(out_r) + movb %al, 2(out_r) + movb %al, 3(out_r) + addl $4, out_r + rep stosb + + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +.align 16,0x90 +.L_test_for_second_level_length_mmx: + testb $64, %al + jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */ + + andl $15, %eax + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ecx + andl .L_mask(,%eax,4), %ecx + addl len_r, %ecx + movl (%ebx,%ecx,4), %eax /* eax = lcode[hold & lmask] */ + jmp .L_dolen_mmx + +.align 16,0x90 +.L_test_for_second_level_dist_mmx: + testb $64, %al + jnz .L_invalid_distance_code /* if ((op & 64) != 0) */ + + andl $15, %eax + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ecx + andl .L_mask(,%eax,4), %ecx + movl dcode(%esp), %eax /* ecx = dcode */ + addl dist_r, %ecx + movl (%eax,%ecx,4), %eax /* eax = lcode[hold & lmask] */ + jmp .L_dodist_mmx + +.align 16,0x90 +.L_clip_window_mmx: +#define nbytes_r %ecx + movl %eax, nbytes_r + movl wsize(%esp), %eax /* prepare for dist compare */ + negl nbytes_r /* nbytes = -nbytes */ + movl window(%esp), from_r /* from = window */ + + cmpl dist_r, %eax + jb .L_invalid_distance_too_far /* if (dist > wsize) */ + + addl dist_r, nbytes_r /* nbytes = dist - nbytes */ + cmpl $0, write(%esp) + jne .L_wrap_around_window_mmx /* if (write != 0) */ + + subl nbytes_r, %eax + addl %eax, from_r /* from += wsize - nbytes */ + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + +.L_wrap_around_window_mmx: +#define write_r %eax + movl write(%esp), write_r + cmpl write_r, nbytes_r + jbe .L_contiguous_in_window_mmx /* if (write >= nbytes) */ + + addl wsize(%esp), from_r + addl write_r, from_r + subl nbytes_r, from_r /* from += wsize + write - nbytes */ + subl write_r, nbytes_r /* nbytes -= write */ +#undef write_r + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl window(%esp), from_r /* from = window */ + movl write(%esp), nbytes_r /* nbytes = write */ + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + jmp .L_do_copy1_mmx + +.L_contiguous_in_window_mmx: +#define write_r %eax + addl write_r, from_r + subl nbytes_r, from_r /* from += write - nbytes */ +#undef write_r + + cmpl nbytes_r, len_r + jbe .L_do_copy1_mmx /* if (nbytes >= len) */ + + subl nbytes_r, len_r /* len -= nbytes */ + rep movsb + movl out_r, from_r + subl dist_r, from_r /* from = out - dist */ + +.L_do_copy1_mmx: +#undef nbytes_r +#define in_r %esi + movl len_r, %ecx + rep movsb + + movl in(%esp), in_r /* move in back to %esi, toss from */ + movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */ + jmp .L_while_test_mmx + +#undef hold_r +#undef bitslong_r + +#endif /* USE_MMX || RUN_TIME_MMX */ + + +/*** USE_MMX, NO_MMX, and RUNTIME_MMX from here on ***/ + +.L_invalid_distance_code: + /* else { + * strm->msg = "invalid distance code"; + * state->mode = BAD; + * } + */ + movl $.L_invalid_distance_code_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_test_for_end_of_block: + /* else if (op & 32) { + * state->mode = TYPE; + * break; + * } + */ + testb $32, %al + jz .L_invalid_literal_length_code /* if ((op & 32) == 0) */ + + movl $0, %ecx + movl $INFLATE_MODE_TYPE, %edx + jmp .L_update_stream_state + +.L_invalid_literal_length_code: + /* else { + * strm->msg = "invalid literal/length code"; + * state->mode = BAD; + * } + */ + movl $.L_invalid_literal_length_code_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_invalid_distance_too_far: + /* strm->msg = "invalid distance too far back"; + * state->mode = BAD; + */ + movl in(%esp), in_r /* from_r has in's reg, put in back */ + movl $.L_invalid_distance_too_far_msg, %ecx + movl $INFLATE_MODE_BAD, %edx + jmp .L_update_stream_state + +.L_update_stream_state: + /* set strm->msg = %ecx, strm->state->mode = %edx */ + movl strm_sp(%esp), %eax + testl %ecx, %ecx /* if (msg != NULL) */ + jz .L_skip_msg + movl %ecx, msg_strm(%eax) /* strm->msg = msg */ +.L_skip_msg: + movl state_strm(%eax), %eax /* state = strm->state */ + movl %edx, mode_state(%eax) /* state->mode = edx (BAD | TYPE) */ + jmp .L_break_loop + +.align 32,0x90 +.L_break_loop: + +/* + * Regs: + * + * bits = %ebp when mmx, and in %ebx when non-mmx + * hold = %hold_mm when mmx, and in %ebp when non-mmx + * in = %esi + * out = %edi + */ + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +#if defined( RUN_TIME_MMX ) + + cmpl $DO_USE_MMX, inflate_fast_use_mmx + jne .L_update_next_in + +#endif /* RUN_TIME_MMX */ + + movl %ebp, %ebx + +.L_update_next_in: + +#endif + +#define strm_r %eax +#define state_r %edx + + /* len = bits >> 3; + * in -= len; + * bits -= len << 3; + * hold &= (1U << bits) - 1; + * state->hold = hold; + * state->bits = bits; + * strm->next_in = in; + * strm->next_out = out; + */ + movl strm_sp(%esp), strm_r + movl %ebx, %ecx + movl state_strm(strm_r), state_r + shrl $3, %ecx + subl %ecx, in_r + shll $3, %ecx + subl %ecx, %ebx + movl out_r, next_out_strm(strm_r) + movl %ebx, bits_state(state_r) + movl %ebx, %ecx + + leal buf(%esp), %ebx + cmpl %ebx, last(%esp) + jne .L_buf_not_used /* if buf != last */ + + subl %ebx, in_r /* in -= buf */ + movl next_in_strm(strm_r), %ebx + movl %ebx, last(%esp) /* last = strm->next_in */ + addl %ebx, in_r /* in += strm->next_in */ + movl avail_in_strm(strm_r), %ebx + subl $11, %ebx + addl %ebx, last(%esp) /* last = &strm->next_in[ avail_in - 11 ] */ + +.L_buf_not_used: + movl in_r, next_in_strm(strm_r) + + movl $1, %ebx + shll %cl, %ebx + decl %ebx + +#if defined( USE_MMX ) || defined( RUN_TIME_MMX ) + +#if defined( RUN_TIME_MMX ) + + cmpl $DO_USE_MMX, inflate_fast_use_mmx + jne .L_update_hold + +#endif /* RUN_TIME_MMX */ + + psrlq used_mm, hold_mm /* hold_mm >>= last bit length */ + movd hold_mm, %ebp + + emms + +.L_update_hold: + +#endif /* USE_MMX || RUN_TIME_MMX */ + + andl %ebx, %ebp + movl %ebp, hold_state(state_r) + +#define last_r %ebx + + /* strm->avail_in = in < last ? 11 + (last - in) : 11 - (in - last) */ + movl last(%esp), last_r + cmpl in_r, last_r + jbe .L_last_is_smaller /* if (in >= last) */ + + subl in_r, last_r /* last -= in */ + addl $11, last_r /* last += 11 */ + movl last_r, avail_in_strm(strm_r) + jmp .L_fixup_out +.L_last_is_smaller: + subl last_r, in_r /* in -= last */ + negl in_r /* in = -in */ + addl $11, in_r /* in += 11 */ + movl in_r, avail_in_strm(strm_r) + +#undef last_r +#define end_r %ebx + +.L_fixup_out: + /* strm->avail_out = out < end ? 257 + (end - out) : 257 - (out - end)*/ + movl end(%esp), end_r + cmpl out_r, end_r + jbe .L_end_is_smaller /* if (out >= end) */ + + subl out_r, end_r /* end -= out */ + addl $257, end_r /* end += 257 */ + movl end_r, avail_out_strm(strm_r) + jmp .L_done +.L_end_is_smaller: + subl end_r, out_r /* out -= end */ + negl out_r /* out = -out */ + addl $257, out_r /* out += 257 */ + movl out_r, avail_out_strm(strm_r) + +#undef end_r +#undef strm_r +#undef state_r + +.L_done: + addl $local_var_size, %esp + popf + popl %ebx + popl %ebp + popl %esi + popl %edi + ret + +#if defined( GAS_ELF ) +/* elf info */ +.type inflate_fast,@function +.size inflate_fast,.-inflate_fast +#endif diff --git a/3party/zlib/contrib/iostream/test.cpp b/3party/zlib/contrib/iostream/test.cpp new file mode 100644 index 0000000000..7d265b3b5c --- /dev/null +++ b/3party/zlib/contrib/iostream/test.cpp @@ -0,0 +1,24 @@ + +#include "zfstream.h" + +int main() { + + // Construct a stream object with this filebuffer. Anything sent + // to this stream will go to standard out. + gzofstream os( 1, ios::out ); + + // This text is getting compressed and sent to stdout. + // To prove this, run 'test | zcat'. + os << "Hello, Mommy" << endl; + + os << setcompressionlevel( Z_NO_COMPRESSION ); + os << "hello, hello, hi, ho!" << endl; + + setcompressionlevel( os, Z_DEFAULT_COMPRESSION ) + << "I'm compressing again" << endl; + + os.close(); + + return 0; + +} diff --git a/3party/zlib/contrib/iostream/zfstream.cpp b/3party/zlib/contrib/iostream/zfstream.cpp new file mode 100644 index 0000000000..d0cd85faaf --- /dev/null +++ b/3party/zlib/contrib/iostream/zfstream.cpp @@ -0,0 +1,329 @@ + +#include "zfstream.h" + +gzfilebuf::gzfilebuf() : + file(NULL), + mode(0), + own_file_descriptor(0) +{ } + +gzfilebuf::~gzfilebuf() { + + sync(); + if ( own_file_descriptor ) + close(); + +} + +gzfilebuf *gzfilebuf::open( const char *name, + int io_mode ) { + + if ( is_open() ) + return NULL; + + char char_mode[10]; + char *p = char_mode; + + if ( io_mode & ios::in ) { + mode = ios::in; + *p++ = 'r'; + } else if ( io_mode & ios::app ) { + mode = ios::app; + *p++ = 'a'; + } else { + mode = ios::out; + *p++ = 'w'; + } + + if ( io_mode & ios::binary ) { + mode |= ios::binary; + *p++ = 'b'; + } + + // Hard code the compression level + if ( io_mode & (ios::out|ios::app )) { + *p++ = '9'; + } + + // Put the end-of-string indicator + *p = '\0'; + + if ( (file = gzopen(name, char_mode)) == NULL ) + return NULL; + + own_file_descriptor = 1; + + return this; + +} + +gzfilebuf *gzfilebuf::attach( int file_descriptor, + int io_mode ) { + + if ( is_open() ) + return NULL; + + char char_mode[10]; + char *p = char_mode; + + if ( io_mode & ios::in ) { + mode = ios::in; + *p++ = 'r'; + } else if ( io_mode & ios::app ) { + mode = ios::app; + *p++ = 'a'; + } else { + mode = ios::out; + *p++ = 'w'; + } + + if ( io_mode & ios::binary ) { + mode |= ios::binary; + *p++ = 'b'; + } + + // Hard code the compression level + if ( io_mode & (ios::out|ios::app )) { + *p++ = '9'; + } + + // Put the end-of-string indicator + *p = '\0'; + + if ( (file = gzdopen(file_descriptor, char_mode)) == NULL ) + return NULL; + + own_file_descriptor = 0; + + return this; + +} + +gzfilebuf *gzfilebuf::close() { + + if ( is_open() ) { + + sync(); + gzclose( file ); + file = NULL; + + } + + return this; + +} + +int gzfilebuf::setcompressionlevel( int comp_level ) { + + return gzsetparams(file, comp_level, -2); + +} + +int gzfilebuf::setcompressionstrategy( int comp_strategy ) { + + return gzsetparams(file, -2, comp_strategy); + +} + + +streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) { + + return streampos(EOF); + +} + +int gzfilebuf::underflow() { + + // If the file hasn't been opened for reading, error. + if ( !is_open() || !(mode & ios::in) ) + return EOF; + + // if a buffer doesn't exists, allocate one. + if ( !base() ) { + + if ( (allocate()) == EOF ) + return EOF; + setp(0,0); + + } else { + + if ( in_avail() ) + return (unsigned char) *gptr(); + + if ( out_waiting() ) { + if ( flushbuf() == EOF ) + return EOF; + } + + } + + // Attempt to fill the buffer. + + int result = fillbuf(); + if ( result == EOF ) { + // disable get area + setg(0,0,0); + return EOF; + } + + return (unsigned char) *gptr(); + +} + +int gzfilebuf::overflow( int c ) { + + if ( !is_open() || !(mode & ios::out) ) + return EOF; + + if ( !base() ) { + if ( allocate() == EOF ) + return EOF; + setg(0,0,0); + } else { + if (in_avail()) { + return EOF; + } + if (out_waiting()) { + if (flushbuf() == EOF) + return EOF; + } + } + + int bl = blen(); + setp( base(), base() + bl); + + if ( c != EOF ) { + + *pptr() = c; + pbump(1); + + } + + return 0; + +} + +int gzfilebuf::sync() { + + if ( !is_open() ) + return EOF; + + if ( out_waiting() ) + return flushbuf(); + + return 0; + +} + +int gzfilebuf::flushbuf() { + + int n; + char *q; + + q = pbase(); + n = pptr() - q; + + if ( gzwrite( file, q, n) < n ) + return EOF; + + setp(0,0); + + return 0; + +} + +int gzfilebuf::fillbuf() { + + int required; + char *p; + + p = base(); + + required = blen(); + + int t = gzread( file, p, required ); + + if ( t <= 0) return EOF; + + setg( base(), base(), base()+t); + + return t; + +} + +gzfilestream_common::gzfilestream_common() : + ios( gzfilestream_common::rdbuf() ) +{ } + +gzfilestream_common::~gzfilestream_common() +{ } + +void gzfilestream_common::attach( int fd, int io_mode ) { + + if ( !buffer.attach( fd, io_mode) ) + clear( ios::failbit | ios::badbit ); + else + clear(); + +} + +void gzfilestream_common::open( const char *name, int io_mode ) { + + if ( !buffer.open( name, io_mode ) ) + clear( ios::failbit | ios::badbit ); + else + clear(); + +} + +void gzfilestream_common::close() { + + if ( !buffer.close() ) + clear( ios::failbit | ios::badbit ); + +} + +gzfilebuf *gzfilestream_common::rdbuf() +{ + return &buffer; +} + +gzifstream::gzifstream() : + ios( gzfilestream_common::rdbuf() ) +{ + clear( ios::badbit ); +} + +gzifstream::gzifstream( const char *name, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::open( name, io_mode ); +} + +gzifstream::gzifstream( int fd, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::attach( fd, io_mode ); +} + +gzifstream::~gzifstream() { } + +gzofstream::gzofstream() : + ios( gzfilestream_common::rdbuf() ) +{ + clear( ios::badbit ); +} + +gzofstream::gzofstream( const char *name, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::open( name, io_mode ); +} + +gzofstream::gzofstream( int fd, int io_mode ) : + ios( gzfilestream_common::rdbuf() ) +{ + gzfilestream_common::attach( fd, io_mode ); +} + +gzofstream::~gzofstream() { } diff --git a/3party/zlib/contrib/iostream/zfstream.h b/3party/zlib/contrib/iostream/zfstream.h new file mode 100644 index 0000000000..ed79098a3a --- /dev/null +++ b/3party/zlib/contrib/iostream/zfstream.h @@ -0,0 +1,128 @@ + +#ifndef zfstream_h +#define zfstream_h + +#include <fstream.h> +#include "zlib.h" + +class gzfilebuf : public streambuf { + +public: + + gzfilebuf( ); + virtual ~gzfilebuf(); + + gzfilebuf *open( const char *name, int io_mode ); + gzfilebuf *attach( int file_descriptor, int io_mode ); + gzfilebuf *close(); + + int setcompressionlevel( int comp_level ); + int setcompressionstrategy( int comp_strategy ); + + inline int is_open() const { return (file !=NULL); } + + virtual streampos seekoff( streamoff, ios::seek_dir, int ); + + virtual int sync(); + +protected: + + virtual int underflow(); + virtual int overflow( int = EOF ); + +private: + + gzFile file; + short mode; + short own_file_descriptor; + + int flushbuf(); + int fillbuf(); + +}; + +class gzfilestream_common : virtual public ios { + + friend class gzifstream; + friend class gzofstream; + friend gzofstream &setcompressionlevel( gzofstream &, int ); + friend gzofstream &setcompressionstrategy( gzofstream &, int ); + +public: + virtual ~gzfilestream_common(); + + void attach( int fd, int io_mode ); + void open( const char *name, int io_mode ); + void close(); + +protected: + gzfilestream_common(); + +private: + gzfilebuf *rdbuf(); + + gzfilebuf buffer; + +}; + +class gzifstream : public gzfilestream_common, public istream { + +public: + + gzifstream(); + gzifstream( const char *name, int io_mode = ios::in ); + gzifstream( int fd, int io_mode = ios::in ); + + virtual ~gzifstream(); + +}; + +class gzofstream : public gzfilestream_common, public ostream { + +public: + + gzofstream(); + gzofstream( const char *name, int io_mode = ios::out ); + gzofstream( int fd, int io_mode = ios::out ); + + virtual ~gzofstream(); + +}; + +template<class T> class gzomanip { + friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &); +public: + gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { } +private: + gzofstream &(*func)(gzofstream &, T); + T val; +}; + +template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m) +{ + return (*m.func)(s, m.val); +} + +inline gzofstream &setcompressionlevel( gzofstream &s, int l ) +{ + (s.rdbuf())->setcompressionlevel(l); + return s; +} + +inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) +{ + (s.rdbuf())->setcompressionstrategy(l); + return s; +} + +inline gzomanip<int> setcompressionlevel(int l) +{ + return gzomanip<int>(&setcompressionlevel,l); +} + +inline gzomanip<int> setcompressionstrategy(int l) +{ + return gzomanip<int>(&setcompressionstrategy,l); +} + +#endif diff --git a/3party/zlib/contrib/iostream2/zstream.h b/3party/zlib/contrib/iostream2/zstream.h new file mode 100644 index 0000000000..43d2332b79 --- /dev/null +++ b/3party/zlib/contrib/iostream2/zstream.h @@ -0,0 +1,307 @@ +/* + * + * Copyright (c) 1997 + * Christian Michelsen Research AS + * Advanced Computing + * Fantoftvegen 38, 5036 BERGEN, Norway + * http://www.cmr.no + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Christian Michelsen Research AS makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +#ifndef ZSTREAM__H +#define ZSTREAM__H + +/* + * zstream.h - C++ interface to the 'zlib' general purpose compression library + * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $ + */ + +#include <strstream.h> +#include <string.h> +#include <stdio.h> +#include "zlib.h" + +#if defined(_WIN32) +# include <fcntl.h> +# include <io.h> +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif + +class zstringlen { +public: + zstringlen(class izstream&); + zstringlen(class ozstream&, const char*); + size_t value() const { return val.word; } +private: + struct Val { unsigned char byte; size_t word; } val; +}; + +// ----------------------------- izstream ----------------------------- + +class izstream +{ + public: + izstream() : m_fp(0) {} + izstream(FILE* fp) : m_fp(0) { open(fp); } + izstream(const char* name) : m_fp(0) { open(name); } + ~izstream() { close(); } + + /* Opens a gzip (.gz) file for reading. + * open() can be used to read a file which is not in gzip format; + * in this case read() will directly read from the file without + * decompression. errno can be checked to distinguish two error + * cases (if errno is zero, the zlib error is Z_MEM_ERROR). + */ + void open(const char* name) { + if (m_fp) close(); + m_fp = ::gzopen(name, "rb"); + } + + void open(FILE* fp) { + SET_BINARY_MODE(fp); + if (m_fp) close(); + m_fp = ::gzdopen(fileno(fp), "rb"); + } + + /* Flushes all pending input if necessary, closes the compressed file + * and deallocates all the (de)compression state. The return value is + * the zlib error number (see function error() below). + */ + int close() { + int r = ::gzclose(m_fp); + m_fp = 0; return r; + } + + /* Binary read the given number of bytes from the compressed file. + */ + int read(void* buf, size_t len) { + return ::gzread(m_fp, buf, len); + } + + /* Returns the error message for the last error which occurred on the + * given compressed file. errnum is set to zlib error number. If an + * error occurred in the file system and not in the compression library, + * errnum is set to Z_ERRNO and the application may consult errno + * to get the exact error code. + */ + const char* error(int* errnum) { + return ::gzerror(m_fp, errnum); + } + + gzFile fp() { return m_fp; } + + private: + gzFile m_fp; +}; + +/* + * Binary read the given (array of) object(s) from the compressed file. + * If the input file was not in gzip format, read() copies the objects number + * of bytes into the buffer. + * returns the number of uncompressed bytes actually read + * (0 for end of file, -1 for error). + */ +template <class T, class Items> +inline int read(izstream& zs, T* x, Items items) { + return ::gzread(zs.fp(), x, items*sizeof(T)); +} + +/* + * Binary input with the '>' operator. + */ +template <class T> +inline izstream& operator>(izstream& zs, T& x) { + ::gzread(zs.fp(), &x, sizeof(T)); + return zs; +} + + +inline zstringlen::zstringlen(izstream& zs) { + zs > val.byte; + if (val.byte == 255) zs > val.word; + else val.word = val.byte; +} + +/* + * Read length of string + the string with the '>' operator. + */ +inline izstream& operator>(izstream& zs, char* x) { + zstringlen len(zs); + ::gzread(zs.fp(), x, len.value()); + x[len.value()] = '\0'; + return zs; +} + +inline char* read_string(izstream& zs) { + zstringlen len(zs); + char* x = new char[len.value()+1]; + ::gzread(zs.fp(), x, len.value()); + x[len.value()] = '\0'; + return x; +} + +// ----------------------------- ozstream ----------------------------- + +class ozstream +{ + public: + ozstream() : m_fp(0), m_os(0) { + } + ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION) + : m_fp(0), m_os(0) { + open(fp, level); + } + ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION) + : m_fp(0), m_os(0) { + open(name, level); + } + ~ozstream() { + close(); + } + + /* Opens a gzip (.gz) file for writing. + * The compression level parameter should be in 0..9 + * errno can be checked to distinguish two error cases + * (if errno is zero, the zlib error is Z_MEM_ERROR). + */ + void open(const char* name, int level = Z_DEFAULT_COMPRESSION) { + char mode[4] = "wb\0"; + if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; + if (m_fp) close(); + m_fp = ::gzopen(name, mode); + } + + /* open from a FILE pointer. + */ + void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) { + SET_BINARY_MODE(fp); + char mode[4] = "wb\0"; + if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; + if (m_fp) close(); + m_fp = ::gzdopen(fileno(fp), mode); + } + + /* Flushes all pending output if necessary, closes the compressed file + * and deallocates all the (de)compression state. The return value is + * the zlib error number (see function error() below). + */ + int close() { + if (m_os) { + ::gzwrite(m_fp, m_os->str(), m_os->pcount()); + delete[] m_os->str(); delete m_os; m_os = 0; + } + int r = ::gzclose(m_fp); m_fp = 0; return r; + } + + /* Binary write the given number of bytes into the compressed file. + */ + int write(const void* buf, size_t len) { + return ::gzwrite(m_fp, (voidp) buf, len); + } + + /* Flushes all pending output into the compressed file. The parameter + * _flush is as in the deflate() function. The return value is the zlib + * error number (see function gzerror below). flush() returns Z_OK if + * the flush_ parameter is Z_FINISH and all output could be flushed. + * flush() should be called only when strictly necessary because it can + * degrade compression. + */ + int flush(int _flush) { + os_flush(); + return ::gzflush(m_fp, _flush); + } + + /* Returns the error message for the last error which occurred on the + * given compressed file. errnum is set to zlib error number. If an + * error occurred in the file system and not in the compression library, + * errnum is set to Z_ERRNO and the application may consult errno + * to get the exact error code. + */ + const char* error(int* errnum) { + return ::gzerror(m_fp, errnum); + } + + gzFile fp() { return m_fp; } + + ostream& os() { + if (m_os == 0) m_os = new ostrstream; + return *m_os; + } + + void os_flush() { + if (m_os && m_os->pcount()>0) { + ostrstream* oss = new ostrstream; + oss->fill(m_os->fill()); + oss->flags(m_os->flags()); + oss->precision(m_os->precision()); + oss->width(m_os->width()); + ::gzwrite(m_fp, m_os->str(), m_os->pcount()); + delete[] m_os->str(); delete m_os; m_os = oss; + } + } + + private: + gzFile m_fp; + ostrstream* m_os; +}; + +/* + * Binary write the given (array of) object(s) into the compressed file. + * returns the number of uncompressed bytes actually written + * (0 in case of error). + */ +template <class T, class Items> +inline int write(ozstream& zs, const T* x, Items items) { + return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T)); +} + +/* + * Binary output with the '<' operator. + */ +template <class T> +inline ozstream& operator<(ozstream& zs, const T& x) { + ::gzwrite(zs.fp(), (voidp) &x, sizeof(T)); + return zs; +} + +inline zstringlen::zstringlen(ozstream& zs, const char* x) { + val.byte = 255; val.word = ::strlen(x); + if (val.word < 255) zs < (val.byte = val.word); + else zs < val; +} + +/* + * Write length of string + the string with the '<' operator. + */ +inline ozstream& operator<(ozstream& zs, const char* x) { + zstringlen len(zs, x); + ::gzwrite(zs.fp(), (voidp) x, len.value()); + return zs; +} + +#ifdef _MSC_VER +inline ozstream& operator<(ozstream& zs, char* const& x) { + return zs < (const char*) x; +} +#endif + +/* + * Ascii write with the << operator; + */ +template <class T> +inline ostream& operator<<(ozstream& zs, const T& x) { + zs.os_flush(); + return zs.os() << x; +} + +#endif diff --git a/3party/zlib/contrib/iostream2/zstream_test.cpp b/3party/zlib/contrib/iostream2/zstream_test.cpp new file mode 100644 index 0000000000..6273f62d62 --- /dev/null +++ b/3party/zlib/contrib/iostream2/zstream_test.cpp @@ -0,0 +1,25 @@ +#include "zstream.h" +#include <math.h> +#include <stdlib.h> +#include <iomanip.h> + +void main() { + char h[256] = "Hello"; + char* g = "Goodbye"; + ozstream out("temp.gz"); + out < "This works well" < h < g; + out.close(); + + izstream in("temp.gz"); // read it back + char *x = read_string(in), *y = new char[256], z[256]; + in > y > z; + in.close(); + cout << x << endl << y << endl << z << endl; + + out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results + out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl; + out << z << endl << y << endl << x << endl; + out << 1.1234567890123456789 << endl; + + delete[] x; delete[] y; +} diff --git a/3party/zlib/contrib/iostream3/README b/3party/zlib/contrib/iostream3/README new file mode 100644 index 0000000000..f7b319ab91 --- /dev/null +++ b/3party/zlib/contrib/iostream3/README @@ -0,0 +1,35 @@ +These classes provide a C++ stream interface to the zlib library. It allows you +to do things like: + + gzofstream outf("blah.gz"); + outf << "These go into the gzip file " << 123 << endl; + +It does this by deriving a specialized stream buffer for gzipped files, which is +the way Stroustrup would have done it. :-> + +The gzifstream and gzofstream classes were originally written by Kevin Ruland +and made available in the zlib contrib/iostream directory. The older version still +compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of +this version. + +The new classes are as standard-compliant as possible, closely following the +approach of the standard library's fstream classes. It compiles under gcc versions +3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard +library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs +from the previous one in the following respects: +- added showmanyc +- added setbuf, with support for unbuffered output via setbuf(0,0) +- a few bug fixes of stream behavior +- gzipped output file opened with default compression level instead of maximum level +- setcompressionlevel()/strategy() members replaced by single setcompression() + +The code is provided "as is", with the permission to use, copy, modify, distribute +and sell it for any purpose without fee. + +Ludwig Schwardt +<schwardt@sun.ac.za> + +DSP Lab +Electrical & Electronic Engineering Department +University of Stellenbosch +South Africa diff --git a/3party/zlib/contrib/iostream3/TODO b/3party/zlib/contrib/iostream3/TODO new file mode 100644 index 0000000000..7032f97be0 --- /dev/null +++ b/3party/zlib/contrib/iostream3/TODO @@ -0,0 +1,17 @@ +Possible upgrades to gzfilebuf: + +- The ability to do putback (e.g. putbackfail) + +- The ability to seek (zlib supports this, but could be slow/tricky) + +- Simultaneous read/write access (does it make sense?) + +- Support for ios_base::ate open mode + +- Locale support? + +- Check public interface to see which calls give problems + (due to dependence on library internals) + +- Override operator<<(ostream&, gzfilebuf*) to allow direct copying + of stream buffer to stream ( i.e. os << is.rdbuf(); ) diff --git a/3party/zlib/contrib/iostream3/test.cc b/3party/zlib/contrib/iostream3/test.cc new file mode 100644 index 0000000000..94235334f2 --- /dev/null +++ b/3party/zlib/contrib/iostream3/test.cc @@ -0,0 +1,50 @@ +/* + * Test program for gzifstream and gzofstream + * + * by Ludwig Schwardt <schwardt@sun.ac.za> + * original version by Kevin Ruland <kevin@rodin.wustl.edu> + */ + +#include "zfstream.h" +#include <iostream> // for cout + +int main() { + + gzofstream outf; + gzifstream inf; + char buf[80]; + + outf.open("test1.txt.gz"); + outf << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + outf.close(); + std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n" + << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + + std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n"; + inf.open("test1.txt.gz"); + while (inf.getline(buf,80,'\n')) { + std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n"; + } + inf.close(); + + outf.rdbuf()->pubsetbuf(0,0); + outf.open("test2.txt.gz"); + outf << setcompression(Z_NO_COMPRESSION) + << "The quick brown fox sidestepped the lazy canine\n" + << 1.3 << "\nPlan " << 9 << std::endl; + outf.close(); + std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form"; + + std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n"; + inf.rdbuf()->pubsetbuf(0,0); + inf.open("test2.txt.gz"); + while (inf.getline(buf,80,'\n')) { + std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n"; + } + inf.close(); + + return 0; + +} diff --git a/3party/zlib/contrib/iostream3/zfstream.cc b/3party/zlib/contrib/iostream3/zfstream.cc new file mode 100644 index 0000000000..94eb933444 --- /dev/null +++ b/3party/zlib/contrib/iostream3/zfstream.cc @@ -0,0 +1,479 @@ +/* + * A C++ I/O streams interface to the zlib gz* functions + * + * by Ludwig Schwardt <schwardt@sun.ac.za> + * original version by Kevin Ruland <kevin@rodin.wustl.edu> + * + * This version is standard-compliant and compatible with gcc 3.x. + */ + +#include "zfstream.h" +#include <cstring> // for strcpy, strcat, strlen (mode strings) +#include <cstdio> // for BUFSIZ + +// Internal buffer sizes (default and "unbuffered" versions) +#define BIGBUFSIZE BUFSIZ +#define SMALLBUFSIZE 1 + +/*****************************************************************************/ + +// Default constructor +gzfilebuf::gzfilebuf() +: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false), + buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true) +{ + // No buffers to start with + this->disable_buffer(); +} + +// Destructor +gzfilebuf::~gzfilebuf() +{ + // Sync output buffer and close only if responsible for file + // (i.e. attached streams should be left open at this stage) + this->sync(); + if (own_fd) + this->close(); + // Make sure internal buffer is deallocated + this->disable_buffer(); +} + +// Set compression level and strategy +int +gzfilebuf::setcompression(int comp_level, + int comp_strategy) +{ + return gzsetparams(file, comp_level, comp_strategy); +} + +// Open gzipped file +gzfilebuf* +gzfilebuf::open(const char *name, + std::ios_base::openmode mode) +{ + // Fail if file already open + if (this->is_open()) + return NULL; + // Don't support simultaneous read/write access (yet) + if ((mode & std::ios_base::in) && (mode & std::ios_base::out)) + return NULL; + + // Build mode string for gzopen and check it [27.8.1.3.2] + char char_mode[6] = "\0\0\0\0\0"; + if (!this->open_mode(mode, char_mode)) + return NULL; + + // Attempt to open file + if ((file = gzopen(name, char_mode)) == NULL) + return NULL; + + // On success, allocate internal buffer and set flags + this->enable_buffer(); + io_mode = mode; + own_fd = true; + return this; +} + +// Attach to gzipped file +gzfilebuf* +gzfilebuf::attach(int fd, + std::ios_base::openmode mode) +{ + // Fail if file already open + if (this->is_open()) + return NULL; + // Don't support simultaneous read/write access (yet) + if ((mode & std::ios_base::in) && (mode & std::ios_base::out)) + return NULL; + + // Build mode string for gzdopen and check it [27.8.1.3.2] + char char_mode[6] = "\0\0\0\0\0"; + if (!this->open_mode(mode, char_mode)) + return NULL; + + // Attempt to attach to file + if ((file = gzdopen(fd, char_mode)) == NULL) + return NULL; + + // On success, allocate internal buffer and set flags + this->enable_buffer(); + io_mode = mode; + own_fd = false; + return this; +} + +// Close gzipped file +gzfilebuf* +gzfilebuf::close() +{ + // Fail immediately if no file is open + if (!this->is_open()) + return NULL; + // Assume success + gzfilebuf* retval = this; + // Attempt to sync and close gzipped file + if (this->sync() == -1) + retval = NULL; + if (gzclose(file) < 0) + retval = NULL; + // File is now gone anyway (postcondition [27.8.1.3.8]) + file = NULL; + own_fd = false; + // Destroy internal buffer if it exists + this->disable_buffer(); + return retval; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +// Convert int open mode to mode string +bool +gzfilebuf::open_mode(std::ios_base::openmode mode, + char* c_mode) const +{ + bool testb = mode & std::ios_base::binary; + bool testi = mode & std::ios_base::in; + bool testo = mode & std::ios_base::out; + bool testt = mode & std::ios_base::trunc; + bool testa = mode & std::ios_base::app; + + // Check for valid flag combinations - see [27.8.1.3.2] (Table 92) + // Original zfstream hardcoded the compression level to maximum here... + // Double the time for less than 1% size improvement seems + // excessive though - keeping it at the default level + // To change back, just append "9" to the next three mode strings + if (!testi && testo && !testt && !testa) + strcpy(c_mode, "w"); + if (!testi && testo && !testt && testa) + strcpy(c_mode, "a"); + if (!testi && testo && testt && !testa) + strcpy(c_mode, "w"); + if (testi && !testo && !testt && !testa) + strcpy(c_mode, "r"); + // No read/write mode yet +// if (testi && testo && !testt && !testa) +// strcpy(c_mode, "r+"); +// if (testi && testo && testt && !testa) +// strcpy(c_mode, "w+"); + + // Mode string should be empty for invalid combination of flags + if (strlen(c_mode) == 0) + return false; + if (testb) + strcat(c_mode, "b"); + return true; +} + +// Determine number of characters in internal get buffer +std::streamsize +gzfilebuf::showmanyc() +{ + // Calls to underflow will fail if file not opened for reading + if (!this->is_open() || !(io_mode & std::ios_base::in)) + return -1; + // Make sure get area is in use + if (this->gptr() && (this->gptr() < this->egptr())) + return std::streamsize(this->egptr() - this->gptr()); + else + return 0; +} + +// Fill get area from gzipped file +gzfilebuf::int_type +gzfilebuf::underflow() +{ + // If something is left in the get area by chance, return it + // (this shouldn't normally happen, as underflow is only supposed + // to be called when gptr >= egptr, but it serves as error check) + if (this->gptr() && (this->gptr() < this->egptr())) + return traits_type::to_int_type(*(this->gptr())); + + // If the file hasn't been opened for reading, produce error + if (!this->is_open() || !(io_mode & std::ios_base::in)) + return traits_type::eof(); + + // Attempt to fill internal buffer from gzipped file + // (buffer must be guaranteed to exist...) + int bytes_read = gzread(file, buffer, buffer_size); + // Indicates error or EOF + if (bytes_read <= 0) + { + // Reset get area + this->setg(buffer, buffer, buffer); + return traits_type::eof(); + } + // Make all bytes read from file available as get area + this->setg(buffer, buffer, buffer + bytes_read); + + // Return next character in get area + return traits_type::to_int_type(*(this->gptr())); +} + +// Write put area to gzipped file +gzfilebuf::int_type +gzfilebuf::overflow(int_type c) +{ + // Determine whether put area is in use + if (this->pbase()) + { + // Double-check pointer range + if (this->pptr() > this->epptr() || this->pptr() < this->pbase()) + return traits_type::eof(); + // Add extra character to buffer if not EOF + if (!traits_type::eq_int_type(c, traits_type::eof())) + { + *(this->pptr()) = traits_type::to_char_type(c); + this->pbump(1); + } + // Number of characters to write to file + int bytes_to_write = this->pptr() - this->pbase(); + // Overflow doesn't fail if nothing is to be written + if (bytes_to_write > 0) + { + // If the file hasn't been opened for writing, produce error + if (!this->is_open() || !(io_mode & std::ios_base::out)) + return traits_type::eof(); + // If gzipped file won't accept all bytes written to it, fail + if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write) + return traits_type::eof(); + // Reset next pointer to point to pbase on success + this->pbump(-bytes_to_write); + } + } + // Write extra character to file if not EOF + else if (!traits_type::eq_int_type(c, traits_type::eof())) + { + // If the file hasn't been opened for writing, produce error + if (!this->is_open() || !(io_mode & std::ios_base::out)) + return traits_type::eof(); + // Impromptu char buffer (allows "unbuffered" output) + char_type last_char = traits_type::to_char_type(c); + // If gzipped file won't accept this character, fail + if (gzwrite(file, &last_char, 1) != 1) + return traits_type::eof(); + } + + // If you got here, you have succeeded (even if c was EOF) + // The return value should therefore be non-EOF + if (traits_type::eq_int_type(c, traits_type::eof())) + return traits_type::not_eof(c); + else + return c; +} + +// Assign new buffer +std::streambuf* +gzfilebuf::setbuf(char_type* p, + std::streamsize n) +{ + // First make sure stuff is sync'ed, for safety + if (this->sync() == -1) + return NULL; + // If buffering is turned off on purpose via setbuf(0,0), still allocate one... + // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at + // least a buffer of size 1 (very inefficient though, therefore make it bigger?) + // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems) + if (!p || !n) + { + // Replace existing buffer (if any) with small internal buffer + this->disable_buffer(); + buffer = NULL; + buffer_size = 0; + own_buffer = true; + this->enable_buffer(); + } + else + { + // Replace existing buffer (if any) with external buffer + this->disable_buffer(); + buffer = p; + buffer_size = n; + own_buffer = false; + this->enable_buffer(); + } + return this; +} + +// Write put area to gzipped file (i.e. ensures that put area is empty) +int +gzfilebuf::sync() +{ + return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +// Allocate internal buffer +void +gzfilebuf::enable_buffer() +{ + // If internal buffer required, allocate one + if (own_buffer && !buffer) + { + // Check for buffered vs. "unbuffered" + if (buffer_size > 0) + { + // Allocate internal buffer + buffer = new char_type[buffer_size]; + // Get area starts empty and will be expanded by underflow as need arises + this->setg(buffer, buffer, buffer); + // Setup entire internal buffer as put area. + // The one-past-end pointer actually points to the last element of the buffer, + // so that overflow(c) can safely add the extra character c to the sequence. + // These pointers remain in place for the duration of the buffer + this->setp(buffer, buffer + buffer_size - 1); + } + else + { + // Even in "unbuffered" case, (small?) get buffer is still required + buffer_size = SMALLBUFSIZE; + buffer = new char_type[buffer_size]; + this->setg(buffer, buffer, buffer); + // "Unbuffered" means no put buffer + this->setp(0, 0); + } + } + else + { + // If buffer already allocated, reset buffer pointers just to make sure no + // stale chars are lying around + this->setg(buffer, buffer, buffer); + this->setp(buffer, buffer + buffer_size - 1); + } +} + +// Destroy internal buffer +void +gzfilebuf::disable_buffer() +{ + // If internal buffer exists, deallocate it + if (own_buffer && buffer) + { + // Preserve unbuffered status by zeroing size + if (!this->pbase()) + buffer_size = 0; + delete[] buffer; + buffer = NULL; + this->setg(0, 0, 0); + this->setp(0, 0); + } + else + { + // Reset buffer pointers to initial state if external buffer exists + this->setg(buffer, buffer, buffer); + if (buffer) + this->setp(buffer, buffer + buffer_size - 1); + else + this->setp(0, 0); + } +} + +/*****************************************************************************/ + +// Default constructor initializes stream buffer +gzifstream::gzifstream() +: std::istream(NULL), sb() +{ this->init(&sb); } + +// Initialize stream buffer and open file +gzifstream::gzifstream(const char* name, + std::ios_base::openmode mode) +: std::istream(NULL), sb() +{ + this->init(&sb); + this->open(name, mode); +} + +// Initialize stream buffer and attach to file +gzifstream::gzifstream(int fd, + std::ios_base::openmode mode) +: std::istream(NULL), sb() +{ + this->init(&sb); + this->attach(fd, mode); +} + +// Open file and go into fail() state if unsuccessful +void +gzifstream::open(const char* name, + std::ios_base::openmode mode) +{ + if (!sb.open(name, mode | std::ios_base::in)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Attach to file and go into fail() state if unsuccessful +void +gzifstream::attach(int fd, + std::ios_base::openmode mode) +{ + if (!sb.attach(fd, mode | std::ios_base::in)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Close file +void +gzifstream::close() +{ + if (!sb.close()) + this->setstate(std::ios_base::failbit); +} + +/*****************************************************************************/ + +// Default constructor initializes stream buffer +gzofstream::gzofstream() +: std::ostream(NULL), sb() +{ this->init(&sb); } + +// Initialize stream buffer and open file +gzofstream::gzofstream(const char* name, + std::ios_base::openmode mode) +: std::ostream(NULL), sb() +{ + this->init(&sb); + this->open(name, mode); +} + +// Initialize stream buffer and attach to file +gzofstream::gzofstream(int fd, + std::ios_base::openmode mode) +: std::ostream(NULL), sb() +{ + this->init(&sb); + this->attach(fd, mode); +} + +// Open file and go into fail() state if unsuccessful +void +gzofstream::open(const char* name, + std::ios_base::openmode mode) +{ + if (!sb.open(name, mode | std::ios_base::out)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Attach to file and go into fail() state if unsuccessful +void +gzofstream::attach(int fd, + std::ios_base::openmode mode) +{ + if (!sb.attach(fd, mode | std::ios_base::out)) + this->setstate(std::ios_base::failbit); + else + this->clear(); +} + +// Close file +void +gzofstream::close() +{ + if (!sb.close()) + this->setstate(std::ios_base::failbit); +} diff --git a/3party/zlib/contrib/iostream3/zfstream.h b/3party/zlib/contrib/iostream3/zfstream.h new file mode 100644 index 0000000000..8574479ae1 --- /dev/null +++ b/3party/zlib/contrib/iostream3/zfstream.h @@ -0,0 +1,466 @@ +/* + * A C++ I/O streams interface to the zlib gz* functions + * + * by Ludwig Schwardt <schwardt@sun.ac.za> + * original version by Kevin Ruland <kevin@rodin.wustl.edu> + * + * This version is standard-compliant and compatible with gcc 3.x. + */ + +#ifndef ZFSTREAM_H +#define ZFSTREAM_H + +#include <istream> // not iostream, since we don't need cin/cout +#include <ostream> +#include "zlib.h" + +/*****************************************************************************/ + +/** + * @brief Gzipped file stream buffer class. + * + * This class implements basic_filebuf for gzipped files. It doesn't yet support + * seeking (allowed by zlib but slow/limited), putback and read/write access + * (tricky). Otherwise, it attempts to be a drop-in replacement for the standard + * file streambuf. +*/ +class gzfilebuf : public std::streambuf +{ +public: + // Default constructor. + gzfilebuf(); + + // Destructor. + virtual + ~gzfilebuf(); + + /** + * @brief Set compression level and strategy on the fly. + * @param comp_level Compression level (see zlib.h for allowed values) + * @param comp_strategy Compression strategy (see zlib.h for allowed values) + * @return Z_OK on success, Z_STREAM_ERROR otherwise. + * + * Unfortunately, these parameters cannot be modified separately, as the + * previous zfstream version assumed. Since the strategy is seldom changed, + * it can default and setcompression(level) then becomes like the old + * setcompressionlevel(level). + */ + int + setcompression(int comp_level, + int comp_strategy = Z_DEFAULT_STRATEGY); + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() const { return (file != NULL); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + open(const char* name, + std::ios_base::openmode mode); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + attach(int fd, + std::ios_base::openmode mode); + + /** + * @brief Close gzipped file. + * @return @c this on success, NULL on failure. + */ + gzfilebuf* + close(); + +protected: + /** + * @brief Convert ios open mode int to mode string used by zlib. + * @return True if valid mode flag combination. + */ + bool + open_mode(std::ios_base::openmode mode, + char* c_mode) const; + + /** + * @brief Number of characters available in stream buffer. + * @return Number of characters. + * + * This indicates number of characters in get area of stream buffer. + * These characters can be read without accessing the gzipped file. + */ + virtual std::streamsize + showmanyc(); + + /** + * @brief Fill get area from gzipped file. + * @return First character in get area on success, EOF on error. + * + * This actually reads characters from gzipped file to stream + * buffer. Always buffered. + */ + virtual int_type + underflow(); + + /** + * @brief Write put area to gzipped file. + * @param c Extra character to add to buffer contents. + * @return Non-EOF on success, EOF on error. + * + * This actually writes characters in stream buffer to + * gzipped file. With unbuffered output this is done one + * character at a time. + */ + virtual int_type + overflow(int_type c = traits_type::eof()); + + /** + * @brief Installs external stream buffer. + * @param p Pointer to char buffer. + * @param n Size of external buffer. + * @return @c this on success, NULL on failure. + * + * Call setbuf(0,0) to enable unbuffered output. + */ + virtual std::streambuf* + setbuf(char_type* p, + std::streamsize n); + + /** + * @brief Flush stream buffer to file. + * @return 0 on success, -1 on error. + * + * This calls underflow(EOF) to do the job. + */ + virtual int + sync(); + +// +// Some future enhancements +// +// virtual int_type uflow(); +// virtual int_type pbackfail(int_type c = traits_type::eof()); +// virtual pos_type +// seekoff(off_type off, +// std::ios_base::seekdir way, +// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out); +// virtual pos_type +// seekpos(pos_type sp, +// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out); + +private: + /** + * @brief Allocate internal buffer. + * + * This function is safe to call multiple times. It will ensure + * that a proper internal buffer exists if it is required. If the + * buffer already exists or is external, the buffer pointers will be + * reset to their original state. + */ + void + enable_buffer(); + + /** + * @brief Destroy internal buffer. + * + * This function is safe to call multiple times. It will ensure + * that the internal buffer is deallocated if it exists. In any + * case, it will also reset the buffer pointers. + */ + void + disable_buffer(); + + /** + * Underlying file pointer. + */ + gzFile file; + + /** + * Mode in which file was opened. + */ + std::ios_base::openmode io_mode; + + /** + * @brief True if this object owns file descriptor. + * + * This makes the class responsible for closing the file + * upon destruction. + */ + bool own_fd; + + /** + * @brief Stream buffer. + * + * For simplicity this remains allocated on the free store for the + * entire life span of the gzfilebuf object, unless replaced by setbuf. + */ + char_type* buffer; + + /** + * @brief Stream buffer size. + * + * Defaults to system default buffer size (typically 8192 bytes). + * Modified by setbuf. + */ + std::streamsize buffer_size; + + /** + * @brief True if this object owns stream buffer. + * + * This makes the class responsible for deleting the buffer + * upon destruction. + */ + bool own_buffer; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file input stream class. + * + * This class implements ifstream for gzipped files. Seeking and putback + * is not supported yet. +*/ +class gzifstream : public std::istream +{ +public: + // Default constructor + gzifstream(); + + /** + * @brief Construct stream on gzipped file to be opened. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::in). + */ + explicit + gzifstream(const char* name, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Construct stream on already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::in). + */ + explicit + gzifstream(int fd, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * Obtain underlying stream buffer. + */ + gzfilebuf* + rdbuf() const + { return const_cast<gzfilebuf*>(&sb); } + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() { return sb.is_open(); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::in). + * + * Stream will be in state good() if file opens successfully; + * otherwise in state fail(). This differs from the behavior of + * ifstream, which never sets the state to good() and therefore + * won't allow you to reuse the stream for a second file unless + * you manually clear() the state. The choice is a matter of + * convenience. + */ + void + open(const char* name, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::in). + * + * Stream will be in state good() if attach succeeded; otherwise + * in state fail(). + */ + void + attach(int fd, + std::ios_base::openmode mode = std::ios_base::in); + + /** + * @brief Close gzipped file. + * + * Stream will be in state fail() if close failed. + */ + void + close(); + +private: + /** + * Underlying stream buffer. + */ + gzfilebuf sb; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file output stream class. + * + * This class implements ofstream for gzipped files. Seeking and putback + * is not supported yet. +*/ +class gzofstream : public std::ostream +{ +public: + // Default constructor + gzofstream(); + + /** + * @brief Construct stream on gzipped file to be opened. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::out). + */ + explicit + gzofstream(const char* name, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Construct stream on already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::out). + */ + explicit + gzofstream(int fd, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * Obtain underlying stream buffer. + */ + gzfilebuf* + rdbuf() const + { return const_cast<gzfilebuf*>(&sb); } + + /** + * @brief Check if file is open. + * @return True if file is open. + */ + bool + is_open() { return sb.is_open(); } + + /** + * @brief Open gzipped file. + * @param name File name. + * @param mode Open mode flags (forced to contain ios::out). + * + * Stream will be in state good() if file opens successfully; + * otherwise in state fail(). This differs from the behavior of + * ofstream, which never sets the state to good() and therefore + * won't allow you to reuse the stream for a second file unless + * you manually clear() the state. The choice is a matter of + * convenience. + */ + void + open(const char* name, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Attach to already open gzipped file. + * @param fd File descriptor. + * @param mode Open mode flags (forced to contain ios::out). + * + * Stream will be in state good() if attach succeeded; otherwise + * in state fail(). + */ + void + attach(int fd, + std::ios_base::openmode mode = std::ios_base::out); + + /** + * @brief Close gzipped file. + * + * Stream will be in state fail() if close failed. + */ + void + close(); + +private: + /** + * Underlying stream buffer. + */ + gzfilebuf sb; +}; + +/*****************************************************************************/ + +/** + * @brief Gzipped file output stream manipulator class. + * + * This class defines a two-argument manipulator for gzofstream. It is used + * as base for the setcompression(int,int) manipulator. +*/ +template<typename T1, typename T2> + class gzomanip2 + { + public: + // Allows insertor to peek at internals + template <typename Ta, typename Tb> + friend gzofstream& + operator<<(gzofstream&, + const gzomanip2<Ta,Tb>&); + + // Constructor + gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2), + T1 v1, + T2 v2); + private: + // Underlying manipulator function + gzofstream& + (*func)(gzofstream&, T1, T2); + + // Arguments for manipulator function + T1 val1; + T2 val2; + }; + +/*****************************************************************************/ + +// Manipulator function thunks through to stream buffer +inline gzofstream& +setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY) +{ + (gzs.rdbuf())->setcompression(l, s); + return gzs; +} + +// Manipulator constructor stores arguments +template<typename T1, typename T2> + inline + gzomanip2<T1,T2>::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2), + T1 v1, + T2 v2) + : func(f), val1(v1), val2(v2) + { } + +// Insertor applies underlying manipulator function to stream +template<typename T1, typename T2> + inline gzofstream& + operator<<(gzofstream& s, const gzomanip2<T1,T2>& m) + { return (*m.func)(s, m.val1, m.val2); } + +// Insert this onto stream to simplify setting of compression level +inline gzomanip2<int,int> +setcompression(int l, int s = Z_DEFAULT_STRATEGY) +{ return gzomanip2<int,int>(&setcompression, l, s); } + +#endif // ZFSTREAM_H diff --git a/3party/zlib/contrib/masmx64/bld_ml64.bat b/3party/zlib/contrib/masmx64/bld_ml64.bat new file mode 100644 index 0000000000..8f9343d0af --- /dev/null +++ b/3party/zlib/contrib/masmx64/bld_ml64.bat @@ -0,0 +1,2 @@ +ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
+ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
diff --git a/3party/zlib/contrib/masmx64/gvmat64.asm b/3party/zlib/contrib/masmx64/gvmat64.asm new file mode 100644 index 0000000000..9879c28b90 --- /dev/null +++ b/3party/zlib/contrib/masmx64/gvmat64.asm @@ -0,0 +1,553 @@ +;uInt longest_match_x64(
+; deflate_state *s,
+; IPos cur_match); /* current match */
+
+; gvmat64.asm -- Asm portion of the optimized longest_match for 32 bits x86_64
+; (AMD64 on Athlon 64, Opteron, Phenom
+; and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
+; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+;
+; File written by Gilles Vollant, by converting to assembly the longest_match
+; from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
+;
+; and by taking inspiration on asm686 with masm, optimised assembly code
+; from Brian Raiter, written 1998
+;
+; This software is provided 'as-is', without any express or implied
+; warranty. In no event will the authors be held liable for any damages
+; arising from the use of this software.
+;
+; Permission is granted to anyone to use this software for any purpose,
+; including commercial applications, and to alter it and redistribute it
+; freely, subject to the following restrictions:
+;
+; 1. The origin of this software must not be misrepresented; you must not
+; claim that you wrote the original software. If you use this software
+; in a product, an acknowledgment in the product documentation would be
+; appreciated but is not required.
+; 2. Altered source versions must be plainly marked as such, and must not be
+; misrepresented as being the original software
+; 3. This notice may not be removed or altered from any source distribution.
+;
+;
+;
+; http://www.zlib.net
+; http://www.winimage.com/zLibDll
+; http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; to compile this file for infozip Zip, I use option:
+; ml64.exe /Flgvmat64 /c /Zi /DINFOZIP gvmat64.asm
+;
+; to compile this file for zLib, I use option:
+; ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
+; Be carrefull to adapt zlib1222add below to your version of zLib
+; (if you use a version of zLib before 1.0.4 or after 1.2.2.2, change
+; value of zlib1222add later)
+;
+; This file compile with Microsoft Macro Assembler (x64) for AMD64
+;
+; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
+;
+; (you can get Windows WDK with ml64 for AMD64 from
+; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
+;
+
+
+;uInt longest_match(s, cur_match)
+; deflate_state *s;
+; IPos cur_match; /* current match */
+.code
+longest_match PROC
+
+
+;LocalVarsSize equ 88
+ LocalVarsSize equ 72
+
+; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
+; free register : r14,r15
+; register can be saved : rsp
+
+ chainlenwmask equ rsp + 8 - LocalVarsSize ; high word: current chain len
+ ; low word: s->wmask
+;window equ rsp + xx - LocalVarsSize ; local copy of s->window ; stored in r10
+;windowbestlen equ rsp + xx - LocalVarsSize ; s->window + bestlen , use r10+r11
+;scanstart equ rsp + xx - LocalVarsSize ; first two bytes of string ; stored in r12w
+;scanend equ rsp + xx - LocalVarsSize ; last two bytes of string use ebx
+;scanalign equ rsp + xx - LocalVarsSize ; dword-misalignment of string r13
+;bestlen equ rsp + xx - LocalVarsSize ; size of best match so far -> r11d
+;scan equ rsp + xx - LocalVarsSize ; ptr to string wanting match -> r9
+IFDEF INFOZIP
+ELSE
+ nicematch equ (rsp + 16 - LocalVarsSize) ; a good enough match size
+ENDIF
+
+save_rdi equ rsp + 24 - LocalVarsSize
+save_rsi equ rsp + 32 - LocalVarsSize
+save_rbx equ rsp + 40 - LocalVarsSize
+save_rbp equ rsp + 48 - LocalVarsSize
+save_r12 equ rsp + 56 - LocalVarsSize
+save_r13 equ rsp + 64 - LocalVarsSize
+;save_r14 equ rsp + 72 - LocalVarsSize
+;save_r15 equ rsp + 80 - LocalVarsSize
+
+
+; summary of register usage
+; scanend ebx
+; scanendw bx
+; chainlenwmask edx
+; curmatch rsi
+; curmatchd esi
+; windowbestlen r8
+; scanalign r9
+; scanalignd r9d
+; window r10
+; bestlen r11
+; bestlend r11d
+; scanstart r12d
+; scanstartw r12w
+; scan r13
+; nicematch r14d
+; limit r15
+; limitd r15d
+; prev rcx
+
+; all the +4 offsets are due to the addition of pending_buf_size (in zlib
+; in the deflate_state structure since the asm code was first written
+; (if you compile with zlib 1.0.4 or older, remove the +4).
+; Note : these value are good with a 8 bytes boundary pack structure
+
+
+ MAX_MATCH equ 258
+ MIN_MATCH equ 3
+ MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
+
+
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+; all the +zlib1222add offsets are due to the addition of fields
+; in zlib in the deflate_state structure since the asm code was first written
+; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+
+
+IFDEF INFOZIP
+
+_DATA SEGMENT
+COMM window_size:DWORD
+; WMask ; 7fff
+COMM window:BYTE:010040H
+COMM prev:WORD:08000H
+; MatchLen : unused
+; PrevMatch : unused
+COMM strstart:DWORD
+COMM match_start:DWORD
+; Lookahead : ignore
+COMM prev_length:DWORD ; PrevLen
+COMM max_chain_length:DWORD
+COMM good_match:DWORD
+COMM nice_match:DWORD
+prev_ad equ OFFSET prev
+window_ad equ OFFSET window
+nicematch equ nice_match
+_DATA ENDS
+WMask equ 07fffh
+
+ELSE
+
+ IFNDEF zlib1222add
+ zlib1222add equ 8
+ ENDIF
+dsWSize equ 56+zlib1222add+(zlib1222add/2)
+dsWMask equ 64+zlib1222add+(zlib1222add/2)
+dsWindow equ 72+zlib1222add
+dsPrev equ 88+zlib1222add
+dsMatchLen equ 128+zlib1222add
+dsPrevMatch equ 132+zlib1222add
+dsStrStart equ 140+zlib1222add
+dsMatchStart equ 144+zlib1222add
+dsLookahead equ 148+zlib1222add
+dsPrevLen equ 152+zlib1222add
+dsMaxChainLen equ 156+zlib1222add
+dsGoodMatch equ 172+zlib1222add
+dsNiceMatch equ 176+zlib1222add
+
+window_size equ [ rcx + dsWSize]
+WMask equ [ rcx + dsWMask]
+window_ad equ [ rcx + dsWindow]
+prev_ad equ [ rcx + dsPrev]
+strstart equ [ rcx + dsStrStart]
+match_start equ [ rcx + dsMatchStart]
+Lookahead equ [ rcx + dsLookahead] ; 0ffffffffh on infozip
+prev_length equ [ rcx + dsPrevLen]
+max_chain_length equ [ rcx + dsMaxChainLen]
+good_match equ [ rcx + dsGoodMatch]
+nice_match equ [ rcx + dsNiceMatch]
+ENDIF
+
+; parameter 1 in r8(deflate state s), param 2 in rdx (cur match)
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+; rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
+
+
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+
+;;; Retrieve the function arguments. r8d will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+; parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
+
+; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
+
+ mov [save_rdi],rdi
+ mov [save_rsi],rsi
+ mov [save_rbx],rbx
+ mov [save_rbp],rbp
+IFDEF INFOZIP
+ mov r8d,ecx
+ELSE
+ mov r8d,edx
+ENDIF
+ mov [save_r12],r12
+ mov [save_r13],r13
+; mov [save_r14],r14
+; mov [save_r15],r15
+
+
+;;; uInt wmask = s->w_mask;
+;;; unsigned chain_length = s->max_chain_length;
+;;; if (s->prev_length >= s->good_match) {
+;;; chain_length >>= 2;
+;;; }
+
+ mov edi, prev_length
+ mov esi, good_match
+ mov eax, WMask
+ mov ebx, max_chain_length
+ cmp edi, esi
+ jl LastMatchGood
+ shr ebx, 2
+LastMatchGood:
+
+;;; chainlen is decremented once beforehand so that the function can
+;;; use the sign flag instead of the zero flag for the exit test.
+;;; It is then shifted into the high word, to make room for the wmask
+;;; value, which it will always accompany.
+
+ dec ebx
+ shl ebx, 16
+ or ebx, eax
+
+;;; on zlib only
+;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+IFDEF INFOZIP
+ mov [chainlenwmask], ebx
+; on infozip nice_match = [nice_match]
+ELSE
+ mov eax, nice_match
+ mov [chainlenwmask], ebx
+ mov r10d, Lookahead
+ cmp r10d, eax
+ cmovnl r10d, eax
+ mov [nicematch],r10d
+ENDIF
+
+;;; register Bytef *scan = s->window + s->strstart;
+ mov r10, window_ad
+ mov ebp, strstart
+ lea r13, [r10 + rbp]
+
+;;; Determine how many bytes the scan ptr is off from being
+;;; dword-aligned.
+
+ mov r9,r13
+ neg r13
+ and r13,3
+
+;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+;;; s->strstart - (IPos)MAX_DIST(s) : NIL;
+IFDEF INFOZIP
+ mov eax,07efah ; MAX_DIST = (WSIZE-MIN_LOOKAHEAD) (0x8000-(3+8+1))
+ELSE
+ mov eax, window_size
+ sub eax, MIN_LOOKAHEAD
+ENDIF
+ xor edi,edi
+ sub ebp, eax
+
+ mov r11d, prev_length
+
+ cmovng ebp,edi
+
+;;; int best_len = s->prev_length;
+
+
+;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+ lea rsi,[r10+r11]
+
+;;; register ush scan_start = *(ushf*)scan;
+;;; register ush scan_end = *(ushf*)(scan+best_len-1);
+;;; Posf *prev = s->prev;
+
+ movzx r12d,word ptr [r9]
+ movzx ebx, word ptr [r9 + r11 - 1]
+
+ mov rdi, prev_ad
+
+;;; Jump into the main loop.
+
+ mov edx, [chainlenwmask]
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ jz LookupLoopIsZero
+
+LookupLoop1:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ jbe LeaveNow
+ sub edx, 00010000h
+ js LeaveNow
+
+LoopEntry1:
+ cmp bx,word ptr [rsi + r8 - 1]
+ jz LookupLoopIsZero
+
+LookupLoop2:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ jbe LeaveNow
+ sub edx, 00010000h
+ js LeaveNow
+
+LoopEntry2:
+ cmp bx,word ptr [rsi + r8 - 1]
+ jz LookupLoopIsZero
+
+LookupLoop4:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ jbe LeaveNow
+ sub edx, 00010000h
+ js LeaveNow
+
+LoopEntry4:
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ jnz LookupLoop1
+ jmp LookupLoopIsZero
+
+
+;;; do {
+;;; match = s->window + cur_match;
+;;; if (*(ushf*)(match+best_len-1) != scan_end ||
+;;; *(ushf*)match != scan_start) continue;
+;;; [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;; && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; r8d = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+
+LookupLoop:
+ and r8d, edx
+
+ movzx r8d, word ptr [rdi + r8*2]
+ cmp r8d, ebp
+ jbe LeaveNow
+ sub edx, 00010000h
+ js LeaveNow
+
+LoopEntry:
+
+ cmp bx,word ptr [rsi + r8 - 1]
+ jnz LookupLoop1
+LookupLoopIsZero:
+ cmp r12w, word ptr [r10 + r8]
+ jnz LookupLoop1
+
+
+;;; Store the current value of chainlen.
+ mov [chainlenwmask], edx
+
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+
+ lea rsi,[r8+r10]
+ mov rdx, 0fffffffffffffef8h; -(MAX_MATCH_8)
+ lea rsi, [rsi + r13 + 0108h] ;MAX_MATCH_8]
+ lea rdi, [r9 + r13 + 0108h] ;MAX_MATCH_8]
+
+ prefetcht1 [rsi+rdx]
+ prefetcht1 [rdi+rdx]
+
+
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust rdx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (rsi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+
+
+LoopCmps:
+ mov rax, [rsi + rdx]
+ xor rax, [rdi + rdx]
+ jnz LeaveLoopCmps
+
+ mov rax, [rsi + rdx + 8]
+ xor rax, [rdi + rdx + 8]
+ jnz LeaveLoopCmps8
+
+
+ mov rax, [rsi + rdx + 8+8]
+ xor rax, [rdi + rdx + 8+8]
+ jnz LeaveLoopCmps16
+
+ add rdx,8+8+8
+
+ jnz short LoopCmps
+ jmp short LenMaximum
+LeaveLoopCmps16: add rdx,8
+LeaveLoopCmps8: add rdx,8
+LeaveLoopCmps:
+
+ test eax, 0000FFFFh
+ jnz LenLower
+
+ test eax,0ffffffffh
+
+ jnz LenLower32
+
+ add rdx,4
+ shr rax,32
+ or ax,ax
+ jnz LenLower
+
+LenLower32:
+ shr eax,16
+ add rdx,2
+LenLower: sub al, 1
+ adc rdx, 0
+;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+;;; then automatically accept it as the best possible match and leave.
+
+ lea rax, [rdi + rdx]
+ sub rax, r9
+ cmp eax, MAX_MATCH
+ jge LenMaximum
+
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+;///////////////////////////////////
+
+ cmp eax, r11d
+ jg LongerMatch
+
+ lea rsi,[r10+r11]
+
+ mov rdi, prev_ad
+ mov edx, [chainlenwmask]
+ jmp LookupLoop
+
+;;; s->match_start = cur_match;
+;;; best_len = len;
+;;; if (len >= nice_match) break;
+;;; scan_end = *(ushf*)(scan+best_len-1);
+
+LongerMatch:
+ mov r11d, eax
+ mov match_start, r8d
+ cmp eax, [nicematch]
+ jge LeaveNow
+
+ lea rsi,[r10+rax]
+
+ movzx ebx, word ptr [r9 + rax - 1]
+ mov rdi, prev_ad
+ mov edx, [chainlenwmask]
+ jmp LookupLoop
+
+;;; Accept the current string, with the maximum possible length.
+
+LenMaximum:
+ mov r11d,MAX_MATCH
+ mov match_start, r8d
+
+;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+;;; return s->lookahead;
+
+LeaveNow:
+IFDEF INFOZIP
+ mov eax,r11d
+ELSE
+ mov eax, Lookahead
+ cmp r11d, eax
+ cmovng eax, r11d
+ENDIF
+
+;;; Restore the stack and return from whence we came.
+
+
+ mov rsi,[save_rsi]
+ mov rdi,[save_rdi]
+ mov rbx,[save_rbx]
+ mov rbp,[save_rbp]
+ mov r12,[save_r12]
+ mov r13,[save_r13]
+; mov r14,[save_r14]
+; mov r15,[save_r15]
+
+
+ ret 0
+; please don't remove this string !
+; Your can freely use gvmat64 in any free or commercial app
+; but it is far better don't remove the string in the binary!
+ db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
+longest_match ENDP
+
+match_init PROC
+ ret 0
+match_init ENDP
+
+
+END
diff --git a/3party/zlib/contrib/masmx64/inffas8664.c b/3party/zlib/contrib/masmx64/inffas8664.c new file mode 100644 index 0000000000..e8af06fa02 --- /dev/null +++ b/3party/zlib/contrib/masmx64/inffas8664.c @@ -0,0 +1,186 @@ +/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding
+ * version for AMD64 on Windows using Microsoft C compiler
+ *
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+ * Please use the copyright conditions above.
+ *
+ * 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant
+ *
+ * inffas8664.c call function inffas8664fnc in inffasx64.asm
+ * inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
+ *
+ * Dec-29-2003 -- I added AMD64 inflate asm support. This version is also
+ * slightly quicker on x86 systems because, instead of using rep movsb to copy
+ * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
+ * bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
+ * from http://fedora.linux.duke.edu/fc1_x86_64
+ * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
+ * 1GB ram. The 64-bit version is about 4% faster than the 32-bit version,
+ * when decompressing mozilla-source-1.3.tar.gz.
+ *
+ * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+ * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
+ * the moment. I have successfully compiled and tested this code with gcc2.96,
+ * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
+ * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+ * enabled. I will attempt to merge the MMX code into this version. Newer
+ * versions of this and inffast.S can be found at
+ * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+ *
+ */
+
+#include <stdio.h>
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/* Mark Adler's comments from inffast.c: */
+
+/*
+ Decode literal, length, and distance codes and write out the resulting
+ literal and match bytes until either not enough input or output is
+ available, an end-of-block is encountered, or a data error is encountered.
+ When large enough input and output buffers are supplied to inflate(), for
+ example, a 16K input buffer and a 64K output buffer, more than 95% of the
+ inflate execution time is spent in this routine.
+
+ Entry assumptions:
+
+ state->mode == LEN
+ strm->avail_in >= 6
+ strm->avail_out >= 258
+ start >= strm->avail_out
+ state->bits < 8
+
+ On return, state->mode is one of:
+
+ LEN -- ran out of enough output space or enough available input
+ TYPE -- reached end of block code, inflate() to interpret next block
+ BAD -- error in block data
+
+ Notes:
+
+ - The maximum input bits used by a length/distance pair is 15 bits for the
+ length code, 5 bits for the length extra, 15 bits for the distance code,
+ and 13 bits for the distance extra. This totals 48 bits, or six bytes.
+ Therefore if strm->avail_in >= 6, then there is enough input to avoid
+ checking for available input while decoding.
+
+ - The maximum bytes that a single length/distance pair can output is 258
+ bytes, which is the maximum length that can be coded. inflate_fast()
+ requires strm->avail_out >= 258 for each loop to avoid checking for
+ output space.
+ */
+
+
+
+ typedef struct inffast_ar {
+/* 64 32 x86 x86_64 */
+/* ar offset register */
+/* 0 0 */ void *esp; /* esp save */
+/* 8 4 */ void *ebp; /* ebp save */
+/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */
+/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */
+/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */
+/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */
+/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */
+/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */
+/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */
+/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */
+/* 80 40 */ size_t /*unsigned long */hold; /* edx rdx local strm->hold */
+/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */
+/* 92 48 */ unsigned wsize; /* window size */
+/* 96 52 */ unsigned write; /* window write index */
+/*100 56 */ unsigned lmask; /* r12 mask for lcode */
+/*104 60 */ unsigned dmask; /* r13 mask for dcode */
+/*108 64 */ unsigned len; /* r14 match length */
+/*112 68 */ unsigned dist; /* r15 match distance */
+/*116 72 */ unsigned status; /* set when state chng*/
+ } type_ar;
+#ifdef ASMINF
+
+void inflate_fast(strm, start)
+z_streamp strm;
+unsigned start; /* inflate()'s starting value for strm->avail_out */
+{
+ struct inflate_state FAR *state;
+ type_ar ar;
+ void inffas8664fnc(struct inffast_ar * par);
+
+
+
+#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))
+#define PAD_AVAIL_IN 6
+#define PAD_AVAIL_OUT 258
+#else
+#define PAD_AVAIL_IN 5
+#define PAD_AVAIL_OUT 257
+#endif
+
+ /* copy state to local variables */
+ state = (struct inflate_state FAR *)strm->state;
+
+ ar.in = strm->next_in;
+ ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
+ ar.out = strm->next_out;
+ ar.beg = ar.out - (start - strm->avail_out);
+ ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
+ ar.wsize = state->wsize;
+ ar.write = state->wnext;
+ ar.window = state->window;
+ ar.hold = state->hold;
+ ar.bits = state->bits;
+ ar.lcode = state->lencode;
+ ar.dcode = state->distcode;
+ ar.lmask = (1U << state->lenbits) - 1;
+ ar.dmask = (1U << state->distbits) - 1;
+
+ /* decode literals and length/distances until end-of-block or not enough
+ input data or output space */
+
+ /* align in on 1/2 hold size boundary */
+ while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
+ ar.hold += (unsigned long)*ar.in++ << ar.bits;
+ ar.bits += 8;
+ }
+
+ inffas8664fnc(&ar);
+
+ if (ar.status > 1) {
+ if (ar.status == 2)
+ strm->msg = "invalid literal/length code";
+ else if (ar.status == 3)
+ strm->msg = "invalid distance code";
+ else
+ strm->msg = "invalid distance too far back";
+ state->mode = BAD;
+ }
+ else if ( ar.status == 1 ) {
+ state->mode = TYPE;
+ }
+
+ /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+ ar.len = ar.bits >> 3;
+ ar.in -= ar.len;
+ ar.bits -= ar.len << 3;
+ ar.hold &= (1U << ar.bits) - 1;
+
+ /* update state and return */
+ strm->next_in = ar.in;
+ strm->next_out = ar.out;
+ strm->avail_in = (unsigned)(ar.in < ar.last ?
+ PAD_AVAIL_IN + (ar.last - ar.in) :
+ PAD_AVAIL_IN - (ar.in - ar.last));
+ strm->avail_out = (unsigned)(ar.out < ar.end ?
+ PAD_AVAIL_OUT + (ar.end - ar.out) :
+ PAD_AVAIL_OUT - (ar.out - ar.end));
+ state->hold = (unsigned long)ar.hold;
+ state->bits = ar.bits;
+ return;
+}
+
+#endif
diff --git a/3party/zlib/contrib/masmx64/inffasx64.asm b/3party/zlib/contrib/masmx64/inffasx64.asm new file mode 100644 index 0000000000..60a8d89b71 --- /dev/null +++ b/3party/zlib/contrib/masmx64/inffasx64.asm @@ -0,0 +1,396 @@ +; inffasx64.asm is a hand tuned assembler version of inffast.c - fast decoding
+; version for AMD64 on Windows using Microsoft C compiler
+;
+; inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
+; inffasx64.asm is called by inffas8664.c, which contain more info.
+
+
+; to compile this file, I use option
+; ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
+; with Microsoft Macro Assembler (x64) for AMD64
+;
+
+; This file compile with Microsoft Macro Assembler (x64) for AMD64
+;
+; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
+;
+; (you can get Windows WDK with ml64 for AMD64 from
+; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
+;
+
+
+.code
+inffas8664fnc PROC
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+; rax, rcx, rdx, r8, r-9, r10, and r11, which are scratch.
+
+
+ mov [rsp-8],rsi
+ mov [rsp-16],rdi
+ mov [rsp-24],r12
+ mov [rsp-32],r13
+ mov [rsp-40],r14
+ mov [rsp-48],r15
+ mov [rsp-56],rbx
+
+ mov rax,rcx
+
+ mov [rax+8], rbp ; /* save regs rbp and rsp */
+ mov [rax], rsp
+
+ mov rsp, rax ; /* make rsp point to &ar */
+
+ mov rsi, [rsp+16] ; /* rsi = in */
+ mov rdi, [rsp+32] ; /* rdi = out */
+ mov r9, [rsp+24] ; /* r9 = last */
+ mov r10, [rsp+48] ; /* r10 = end */
+ mov rbp, [rsp+64] ; /* rbp = lcode */
+ mov r11, [rsp+72] ; /* r11 = dcode */
+ mov rdx, [rsp+80] ; /* rdx = hold */
+ mov ebx, [rsp+88] ; /* ebx = bits */
+ mov r12d, [rsp+100] ; /* r12d = lmask */
+ mov r13d, [rsp+104] ; /* r13d = dmask */
+ ; /* r14d = len */
+ ; /* r15d = dist */
+
+
+ cld
+ cmp r10, rdi
+ je L_one_time ; /* if only one decode left */
+ cmp r9, rsi
+
+ jne L_do_loop
+
+
+L_one_time:
+ mov r8, r12 ; /* r8 = lmask */
+ cmp bl, 32
+ ja L_get_length_code_one_time
+
+ lodsd ; /* eax = *(uint *)in++ */
+ mov cl, bl ; /* cl = bits, needs it for shifting */
+ add bl, 32 ; /* bits += 32 */
+ shl rax, cl
+ or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
+ jmp L_get_length_code_one_time
+
+ALIGN 4
+L_while_test:
+ cmp r10, rdi
+ jbe L_break_loop
+ cmp r9, rsi
+ jbe L_break_loop
+
+L_do_loop:
+ mov r8, r12 ; /* r8 = lmask */
+ cmp bl, 32
+ ja L_get_length_code ; /* if (32 < bits) */
+
+ lodsd ; /* eax = *(uint *)in++ */
+ mov cl, bl ; /* cl = bits, needs it for shifting */
+ add bl, 32 ; /* bits += 32 */
+ shl rax, cl
+ or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
+
+L_get_length_code:
+ and r8, rdx ; /* r8 &= hold */
+ mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
+
+ mov cl, ah ; /* cl = this.bits */
+ sub bl, ah ; /* bits -= this.bits */
+ shr rdx, cl ; /* hold >>= this.bits */
+
+ test al, al
+ jnz L_test_for_length_base ; /* if (op != 0) 45.7% */
+
+ mov r8, r12 ; /* r8 = lmask */
+ shr eax, 16 ; /* output this.val char */
+ stosb
+
+L_get_length_code_one_time:
+ and r8, rdx ; /* r8 &= hold */
+ mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
+
+L_dolen:
+ mov cl, ah ; /* cl = this.bits */
+ sub bl, ah ; /* bits -= this.bits */
+ shr rdx, cl ; /* hold >>= this.bits */
+
+ test al, al
+ jnz L_test_for_length_base ; /* if (op != 0) 45.7% */
+
+ shr eax, 16 ; /* output this.val char */
+ stosb
+ jmp L_while_test
+
+ALIGN 4
+L_test_for_length_base:
+ mov r14d, eax ; /* len = this */
+ shr r14d, 16 ; /* len = this.val */
+ mov cl, al
+
+ test al, 16
+ jz L_test_for_second_level_length ; /* if ((op & 16) == 0) 8% */
+ and cl, 15 ; /* op &= 15 */
+ jz L_decode_distance ; /* if (!op) */
+
+L_add_bits_to_len:
+ sub bl, cl
+ xor eax, eax
+ inc eax
+ shl eax, cl
+ dec eax
+ and eax, edx ; /* eax &= hold */
+ shr rdx, cl
+ add r14d, eax ; /* len += hold & mask[op] */
+
+L_decode_distance:
+ mov r8, r13 ; /* r8 = dmask */
+ cmp bl, 32
+ ja L_get_distance_code ; /* if (32 < bits) */
+
+ lodsd ; /* eax = *(uint *)in++ */
+ mov cl, bl ; /* cl = bits, needs it for shifting */
+ add bl, 32 ; /* bits += 32 */
+ shl rax, cl
+ or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
+
+L_get_distance_code:
+ and r8, rdx ; /* r8 &= hold */
+ mov eax, [r11+r8*4] ; /* eax = dcode[hold & dmask] */
+
+L_dodist:
+ mov r15d, eax ; /* dist = this */
+ shr r15d, 16 ; /* dist = this.val */
+ mov cl, ah
+ sub bl, ah ; /* bits -= this.bits */
+ shr rdx, cl ; /* hold >>= this.bits */
+ mov cl, al ; /* cl = this.op */
+
+ test al, 16 ; /* if ((op & 16) == 0) */
+ jz L_test_for_second_level_dist
+ and cl, 15 ; /* op &= 15 */
+ jz L_check_dist_one
+
+L_add_bits_to_dist:
+ sub bl, cl
+ xor eax, eax
+ inc eax
+ shl eax, cl
+ dec eax ; /* (1 << op) - 1 */
+ and eax, edx ; /* eax &= hold */
+ shr rdx, cl
+ add r15d, eax ; /* dist += hold & ((1 << op) - 1) */
+
+L_check_window:
+ mov r8, rsi ; /* save in so from can use it's reg */
+ mov rax, rdi
+ sub rax, [rsp+40] ; /* nbytes = out - beg */
+
+ cmp eax, r15d
+ jb L_clip_window ; /* if (dist > nbytes) 4.2% */
+
+ mov ecx, r14d ; /* ecx = len */
+ mov rsi, rdi
+ sub rsi, r15 ; /* from = out - dist */
+
+ sar ecx, 1
+ jnc L_copy_two ; /* if len % 2 == 0 */
+
+ rep movsw
+ mov al, [rsi]
+ mov [rdi], al
+ inc rdi
+
+ mov rsi, r8 ; /* move in back to %rsi, toss from */
+ jmp L_while_test
+
+L_copy_two:
+ rep movsw
+ mov rsi, r8 ; /* move in back to %rsi, toss from */
+ jmp L_while_test
+
+ALIGN 4
+L_check_dist_one:
+ cmp r15d, 1 ; /* if dist 1, is a memset */
+ jne L_check_window
+ cmp [rsp+40], rdi ; /* if out == beg, outside window */
+ je L_check_window
+
+ mov ecx, r14d ; /* ecx = len */
+ mov al, [rdi-1]
+ mov ah, al
+
+ sar ecx, 1
+ jnc L_set_two
+ mov [rdi], al
+ inc rdi
+
+L_set_two:
+ rep stosw
+ jmp L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+ test al, 64
+ jnz L_test_for_end_of_block ; /* if ((op & 64) != 0) */
+
+ xor eax, eax
+ inc eax
+ shl eax, cl
+ dec eax
+ and eax, edx ; /* eax &= hold */
+ add eax, r14d ; /* eax += len */
+ mov eax, [rbp+rax*4] ; /* eax = lcode[val+(hold&mask[op])]*/
+ jmp L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+ test al, 64
+ jnz L_invalid_distance_code ; /* if ((op & 64) != 0) */
+
+ xor eax, eax
+ inc eax
+ shl eax, cl
+ dec eax
+ and eax, edx ; /* eax &= hold */
+ add eax, r15d ; /* eax += dist */
+ mov eax, [r11+rax*4] ; /* eax = dcode[val+(hold&mask[op])]*/
+ jmp L_dodist
+
+ALIGN 4
+L_clip_window:
+ mov ecx, eax ; /* ecx = nbytes */
+ mov eax, [rsp+92] ; /* eax = wsize, prepare for dist cmp */
+ neg ecx ; /* nbytes = -nbytes */
+
+ cmp eax, r15d
+ jb L_invalid_distance_too_far ; /* if (dist > wsize) */
+
+ add ecx, r15d ; /* nbytes = dist - nbytes */
+ cmp dword ptr [rsp+96], 0
+ jne L_wrap_around_window ; /* if (write != 0) */
+
+ mov rsi, [rsp+56] ; /* from = window */
+ sub eax, ecx ; /* eax -= nbytes */
+ add rsi, rax ; /* from += wsize - nbytes */
+
+ mov eax, r14d ; /* eax = len */
+ cmp r14d, ecx
+ jbe L_do_copy ; /* if (nbytes >= len) */
+
+ sub eax, ecx ; /* eax -= nbytes */
+ rep movsb
+ mov rsi, rdi
+ sub rsi, r15 ; /* from = &out[ -dist ] */
+ jmp L_do_copy
+
+ALIGN 4
+L_wrap_around_window:
+ mov eax, [rsp+96] ; /* eax = write */
+ cmp ecx, eax
+ jbe L_contiguous_in_window ; /* if (write >= nbytes) */
+
+ mov esi, [rsp+92] ; /* from = wsize */
+ add rsi, [rsp+56] ; /* from += window */
+ add rsi, rax ; /* from += write */
+ sub rsi, rcx ; /* from -= nbytes */
+ sub ecx, eax ; /* nbytes -= write */
+
+ mov eax, r14d ; /* eax = len */
+ cmp eax, ecx
+ jbe L_do_copy ; /* if (nbytes >= len) */
+
+ sub eax, ecx ; /* len -= nbytes */
+ rep movsb
+ mov rsi, [rsp+56] ; /* from = window */
+ mov ecx, [rsp+96] ; /* nbytes = write */
+ cmp eax, ecx
+ jbe L_do_copy ; /* if (nbytes >= len) */
+
+ sub eax, ecx ; /* len -= nbytes */
+ rep movsb
+ mov rsi, rdi
+ sub rsi, r15 ; /* from = out - dist */
+ jmp L_do_copy
+
+ALIGN 4
+L_contiguous_in_window:
+ mov rsi, [rsp+56] ; /* rsi = window */
+ add rsi, rax
+ sub rsi, rcx ; /* from += write - nbytes */
+
+ mov eax, r14d ; /* eax = len */
+ cmp eax, ecx
+ jbe L_do_copy ; /* if (nbytes >= len) */
+
+ sub eax, ecx ; /* len -= nbytes */
+ rep movsb
+ mov rsi, rdi
+ sub rsi, r15 ; /* from = out - dist */
+ jmp L_do_copy ; /* if (nbytes >= len) */
+
+ALIGN 4
+L_do_copy:
+ mov ecx, eax ; /* ecx = len */
+ rep movsb
+
+ mov rsi, r8 ; /* move in back to %esi, toss from */
+ jmp L_while_test
+
+L_test_for_end_of_block:
+ test al, 32
+ jz L_invalid_literal_length_code
+ mov dword ptr [rsp+116], 1
+ jmp L_break_loop_with_status
+
+L_invalid_literal_length_code:
+ mov dword ptr [rsp+116], 2
+ jmp L_break_loop_with_status
+
+L_invalid_distance_code:
+ mov dword ptr [rsp+116], 3
+ jmp L_break_loop_with_status
+
+L_invalid_distance_too_far:
+ mov dword ptr [rsp+116], 4
+ jmp L_break_loop_with_status
+
+L_break_loop:
+ mov dword ptr [rsp+116], 0
+
+L_break_loop_with_status:
+; /* put in, out, bits, and hold back into ar and pop esp */
+ mov [rsp+16], rsi ; /* in */
+ mov [rsp+32], rdi ; /* out */
+ mov [rsp+88], ebx ; /* bits */
+ mov [rsp+80], rdx ; /* hold */
+
+ mov rax, [rsp] ; /* restore rbp and rsp */
+ mov rbp, [rsp+8]
+ mov rsp, rax
+
+
+
+ mov rsi,[rsp-8]
+ mov rdi,[rsp-16]
+ mov r12,[rsp-24]
+ mov r13,[rsp-32]
+ mov r14,[rsp-40]
+ mov r15,[rsp-48]
+ mov rbx,[rsp-56]
+
+ ret 0
+; :
+; : "m" (ar)
+; : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
+; "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
+; );
+
+inffas8664fnc ENDP
+;_TEXT ENDS
+END
diff --git a/3party/zlib/contrib/masmx64/readme.txt b/3party/zlib/contrib/masmx64/readme.txt new file mode 100644 index 0000000000..2da6733412 --- /dev/null +++ b/3party/zlib/contrib/masmx64/readme.txt @@ -0,0 +1,31 @@ +Summary
+-------
+This directory contains ASM implementations of the functions
+longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),
+for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.
+
+gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits
+ assembly optimized version from Jean-loup Gailly original longest_match function
+
+inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing
+ original function from Mark Adler
+
+Use instructions
+----------------
+Assemble the .asm files using MASM and put the object files into the zlib source
+directory. You can also get object files here:
+
+ http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
+
+define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,
+and inffasx64.obj and gvmat64.obj as object to link.
+
+
+Build instructions
+------------------
+run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)
+
+ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK
+
+You can get Windows 2003 server DDK with ml64 and cl for AMD64 from
+ http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)
diff --git a/3party/zlib/contrib/masmx86/bld_ml32.bat b/3party/zlib/contrib/masmx86/bld_ml32.bat new file mode 100644 index 0000000000..e1b86bf68a --- /dev/null +++ b/3party/zlib/contrib/masmx86/bld_ml32.bat @@ -0,0 +1,2 @@ +ml /coff /Zi /c /Flmatch686.lst match686.asm
+ml /coff /Zi /c /Flinffas32.lst inffas32.asm
diff --git a/3party/zlib/contrib/masmx86/inffas32.asm b/3party/zlib/contrib/masmx86/inffas32.asm new file mode 100644 index 0000000000..92ac22ad9d --- /dev/null +++ b/3party/zlib/contrib/masmx86/inffas32.asm @@ -0,0 +1,1083 @@ +;/* inffas32.asm is a hand tuned assembler version of inffast.c -- fast decoding
+; *
+; * inffas32.asm is derivated from inffas86.c, with translation of assembly code
+; *
+; * Copyright (C) 1995-2003 Mark Adler
+; * For conditions of distribution and use, see copyright notice in zlib.h
+; *
+; * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+; * Please use the copyright conditions above.
+; *
+; * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+; * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
+; * the moment. I have successfully compiled and tested this code with gcc2.96,
+; * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
+; * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+; * enabled. I will attempt to merge the MMX code into this version. Newer
+; * versions of this and inffast.S can be found at
+; * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+; *
+; * 2005 : modification by Gilles Vollant
+; */
+; For Visual C++ 4.x and higher and ML 6.x and higher
+; ml.exe is in directory \MASM611C of Win95 DDK
+; ml.exe is also distributed in http://www.masm32.com/masmdl.htm
+; and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/
+;
+;
+; compile with command line option
+; ml /coff /Zi /c /Flinffas32.lst inffas32.asm
+
+; if you define NO_GZIP (see inflate.h), compile with
+; ml /coff /Zi /c /Flinffas32.lst /DNO_GUNZIP inffas32.asm
+
+
+; zlib122sup is 0 fort zlib 1.2.2.1 and lower
+; zlib122sup is 8 fort zlib 1.2.2.2 and more (with addition of dmax and head
+; in inflate_state in inflate.h)
+zlib1222sup equ 8
+
+
+IFDEF GUNZIP
+ INFLATE_MODE_TYPE equ 11
+ INFLATE_MODE_BAD equ 26
+ELSE
+ IFNDEF NO_GUNZIP
+ INFLATE_MODE_TYPE equ 11
+ INFLATE_MODE_BAD equ 26
+ ELSE
+ INFLATE_MODE_TYPE equ 3
+ INFLATE_MODE_BAD equ 17
+ ENDIF
+ENDIF
+
+
+; 75 "inffast.S"
+;FILE "inffast.S"
+
+;;;GLOBAL _inflate_fast
+
+;;;SECTION .text
+
+
+
+ .586p
+ .mmx
+
+ name inflate_fast_x86
+ .MODEL FLAT
+
+_DATA segment
+inflate_fast_use_mmx:
+ dd 1
+
+
+_TEXT segment
+PUBLIC _inflate_fast
+
+ALIGN 4
+_inflate_fast:
+ jmp inflate_fast_entry
+
+
+
+ALIGN 4
+ db 'Fast decoding Code from Chris Anderson'
+ db 0
+
+ALIGN 4
+invalid_literal_length_code_msg:
+ db 'invalid literal/length code'
+ db 0
+
+ALIGN 4
+invalid_distance_code_msg:
+ db 'invalid distance code'
+ db 0
+
+ALIGN 4
+invalid_distance_too_far_msg:
+ db 'invalid distance too far back'
+ db 0
+
+
+ALIGN 4
+inflate_fast_mask:
+dd 0
+dd 1
+dd 3
+dd 7
+dd 15
+dd 31
+dd 63
+dd 127
+dd 255
+dd 511
+dd 1023
+dd 2047
+dd 4095
+dd 8191
+dd 16383
+dd 32767
+dd 65535
+dd 131071
+dd 262143
+dd 524287
+dd 1048575
+dd 2097151
+dd 4194303
+dd 8388607
+dd 16777215
+dd 33554431
+dd 67108863
+dd 134217727
+dd 268435455
+dd 536870911
+dd 1073741823
+dd 2147483647
+dd 4294967295
+
+
+mode_state equ 0 ;/* state->mode */
+wsize_state equ (32+zlib1222sup) ;/* state->wsize */
+write_state equ (36+4+zlib1222sup) ;/* state->write */
+window_state equ (40+4+zlib1222sup) ;/* state->window */
+hold_state equ (44+4+zlib1222sup) ;/* state->hold */
+bits_state equ (48+4+zlib1222sup) ;/* state->bits */
+lencode_state equ (64+4+zlib1222sup) ;/* state->lencode */
+distcode_state equ (68+4+zlib1222sup) ;/* state->distcode */
+lenbits_state equ (72+4+zlib1222sup) ;/* state->lenbits */
+distbits_state equ (76+4+zlib1222sup) ;/* state->distbits */
+
+
+;;SECTION .text
+; 205 "inffast.S"
+;GLOBAL inflate_fast_use_mmx
+
+;SECTION .data
+
+
+; GLOBAL inflate_fast_use_mmx:object
+;.size inflate_fast_use_mmx, 4
+; 226 "inffast.S"
+;SECTION .text
+
+ALIGN 4
+inflate_fast_entry:
+ push edi
+ push esi
+ push ebp
+ push ebx
+ pushfd
+ sub esp,64
+ cld
+
+
+
+
+ mov esi, [esp+88]
+ mov edi, [esi+28]
+
+
+
+
+
+
+
+ mov edx, [esi+4]
+ mov eax, [esi+0]
+
+ add edx,eax
+ sub edx,11
+
+ mov [esp+44],eax
+ mov [esp+20],edx
+
+ mov ebp, [esp+92]
+ mov ecx, [esi+16]
+ mov ebx, [esi+12]
+
+ sub ebp,ecx
+ neg ebp
+ add ebp,ebx
+
+ sub ecx,257
+ add ecx,ebx
+
+ mov [esp+60],ebx
+ mov [esp+40],ebp
+ mov [esp+16],ecx
+; 285 "inffast.S"
+ mov eax, [edi+lencode_state]
+ mov ecx, [edi+distcode_state]
+
+ mov [esp+8],eax
+ mov [esp+12],ecx
+
+ mov eax,1
+ mov ecx, [edi+lenbits_state]
+ shl eax,cl
+ dec eax
+ mov [esp+0],eax
+
+ mov eax,1
+ mov ecx, [edi+distbits_state]
+ shl eax,cl
+ dec eax
+ mov [esp+4],eax
+
+ mov eax, [edi+wsize_state]
+ mov ecx, [edi+write_state]
+ mov edx, [edi+window_state]
+
+ mov [esp+52],eax
+ mov [esp+48],ecx
+ mov [esp+56],edx
+
+ mov ebp, [edi+hold_state]
+ mov ebx, [edi+bits_state]
+; 321 "inffast.S"
+ mov esi, [esp+44]
+ mov ecx, [esp+20]
+ cmp ecx,esi
+ ja L_align_long
+
+ add ecx,11
+ sub ecx,esi
+ mov eax,12
+ sub eax,ecx
+ lea edi, [esp+28]
+ rep movsb
+ mov ecx,eax
+ xor eax,eax
+ rep stosb
+ lea esi, [esp+28]
+ mov [esp+20],esi
+ jmp L_is_aligned
+
+
+L_align_long:
+ test esi,3
+ jz L_is_aligned
+ xor eax,eax
+ mov al, [esi]
+ inc esi
+ mov ecx,ebx
+ add ebx,8
+ shl eax,cl
+ or ebp,eax
+ jmp L_align_long
+
+L_is_aligned:
+ mov edi, [esp+60]
+; 366 "inffast.S"
+L_check_mmx:
+ cmp dword ptr [inflate_fast_use_mmx],2
+ je L_init_mmx
+ ja L_do_loop
+
+ push eax
+ push ebx
+ push ecx
+ push edx
+ pushfd
+ mov eax, [esp]
+ xor dword ptr [esp],0200000h
+
+
+
+
+ popfd
+ pushfd
+ pop edx
+ xor edx,eax
+ jz L_dont_use_mmx
+ xor eax,eax
+ cpuid
+ cmp ebx,0756e6547h
+ jne L_dont_use_mmx
+ cmp ecx,06c65746eh
+ jne L_dont_use_mmx
+ cmp edx,049656e69h
+ jne L_dont_use_mmx
+ mov eax,1
+ cpuid
+ shr eax,8
+ and eax,15
+ cmp eax,6
+ jne L_dont_use_mmx
+ test edx,0800000h
+ jnz L_use_mmx
+ jmp L_dont_use_mmx
+L_use_mmx:
+ mov dword ptr [inflate_fast_use_mmx],2
+ jmp L_check_mmx_pop
+L_dont_use_mmx:
+ mov dword ptr [inflate_fast_use_mmx],3
+L_check_mmx_pop:
+ pop edx
+ pop ecx
+ pop ebx
+ pop eax
+ jmp L_check_mmx
+; 426 "inffast.S"
+ALIGN 4
+L_do_loop:
+; 437 "inffast.S"
+ cmp bl,15
+ ja L_get_length_code
+
+ xor eax,eax
+ lodsw
+ mov cl,bl
+ add bl,16
+ shl eax,cl
+ or ebp,eax
+
+L_get_length_code:
+ mov edx, [esp+0]
+ mov ecx, [esp+8]
+ and edx,ebp
+ mov eax, [ecx+edx*4]
+
+L_dolen:
+
+
+
+
+
+
+ mov cl,ah
+ sub bl,ah
+ shr ebp,cl
+
+
+
+
+
+
+ test al,al
+ jnz L_test_for_length_base
+
+ shr eax,16
+ stosb
+
+L_while_test:
+
+
+ cmp [esp+16],edi
+ jbe L_break_loop
+
+ cmp [esp+20],esi
+ ja L_do_loop
+ jmp L_break_loop
+
+L_test_for_length_base:
+; 502 "inffast.S"
+ mov edx,eax
+ shr edx,16
+ mov cl,al
+
+ test al,16
+ jz L_test_for_second_level_length
+ and cl,15
+ jz L_save_len
+ cmp bl,cl
+ jae L_add_bits_to_len
+
+ mov ch,cl
+ xor eax,eax
+ lodsw
+ mov cl,bl
+ add bl,16
+ shl eax,cl
+ or ebp,eax
+ mov cl,ch
+
+L_add_bits_to_len:
+ mov eax,1
+ shl eax,cl
+ dec eax
+ sub bl,cl
+ and eax,ebp
+ shr ebp,cl
+ add edx,eax
+
+L_save_len:
+ mov [esp+24],edx
+
+
+L_decode_distance:
+; 549 "inffast.S"
+ cmp bl,15
+ ja L_get_distance_code
+
+ xor eax,eax
+ lodsw
+ mov cl,bl
+ add bl,16
+ shl eax,cl
+ or ebp,eax
+
+L_get_distance_code:
+ mov edx, [esp+4]
+ mov ecx, [esp+12]
+ and edx,ebp
+ mov eax, [ecx+edx*4]
+
+
+L_dodist:
+ mov edx,eax
+ shr edx,16
+ mov cl,ah
+ sub bl,ah
+ shr ebp,cl
+; 584 "inffast.S"
+ mov cl,al
+
+ test al,16
+ jz L_test_for_second_level_dist
+ and cl,15
+ jz L_check_dist_one
+ cmp bl,cl
+ jae L_add_bits_to_dist
+
+ mov ch,cl
+ xor eax,eax
+ lodsw
+ mov cl,bl
+ add bl,16
+ shl eax,cl
+ or ebp,eax
+ mov cl,ch
+
+L_add_bits_to_dist:
+ mov eax,1
+ shl eax,cl
+ dec eax
+ sub bl,cl
+ and eax,ebp
+ shr ebp,cl
+ add edx,eax
+ jmp L_check_window
+
+L_check_window:
+; 625 "inffast.S"
+ mov [esp+44],esi
+ mov eax,edi
+ sub eax, [esp+40]
+
+ cmp eax,edx
+ jb L_clip_window
+
+ mov ecx, [esp+24]
+ mov esi,edi
+ sub esi,edx
+
+ sub ecx,3
+ mov al, [esi]
+ mov [edi],al
+ mov al, [esi+1]
+ mov dl, [esi+2]
+ add esi,3
+ mov [edi+1],al
+ mov [edi+2],dl
+ add edi,3
+ rep movsb
+
+ mov esi, [esp+44]
+ jmp L_while_test
+
+ALIGN 4
+L_check_dist_one:
+ cmp edx,1
+ jne L_check_window
+ cmp [esp+40],edi
+ je L_check_window
+
+ dec edi
+ mov ecx, [esp+24]
+ mov al, [edi]
+ sub ecx,3
+
+ mov [edi+1],al
+ mov [edi+2],al
+ mov [edi+3],al
+ add edi,4
+ rep stosb
+
+ jmp L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+
+
+
+
+ test al,64
+ jnz L_test_for_end_of_block
+
+ mov eax,1
+ shl eax,cl
+ dec eax
+ and eax,ebp
+ add eax,edx
+ mov edx, [esp+8]
+ mov eax, [edx+eax*4]
+ jmp L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+
+
+
+
+ test al,64
+ jnz L_invalid_distance_code
+
+ mov eax,1
+ shl eax,cl
+ dec eax
+ and eax,ebp
+ add eax,edx
+ mov edx, [esp+12]
+ mov eax, [edx+eax*4]
+ jmp L_dodist
+
+ALIGN 4
+L_clip_window:
+; 721 "inffast.S"
+ mov ecx,eax
+ mov eax, [esp+52]
+ neg ecx
+ mov esi, [esp+56]
+
+ cmp eax,edx
+ jb L_invalid_distance_too_far
+
+ add ecx,edx
+ cmp dword ptr [esp+48],0
+ jne L_wrap_around_window
+
+ sub eax,ecx
+ add esi,eax
+; 749 "inffast.S"
+ mov eax, [esp+24]
+ cmp eax,ecx
+ jbe L_do_copy1
+
+ sub eax,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,edx
+ jmp L_do_copy1
+
+ cmp eax,ecx
+ jbe L_do_copy1
+
+ sub eax,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,edx
+ jmp L_do_copy1
+
+L_wrap_around_window:
+; 793 "inffast.S"
+ mov eax, [esp+48]
+ cmp ecx,eax
+ jbe L_contiguous_in_window
+
+ add esi, [esp+52]
+ add esi,eax
+ sub esi,ecx
+ sub ecx,eax
+
+
+ mov eax, [esp+24]
+ cmp eax,ecx
+ jbe L_do_copy1
+
+ sub eax,ecx
+ rep movsb
+ mov esi, [esp+56]
+ mov ecx, [esp+48]
+ cmp eax,ecx
+ jbe L_do_copy1
+
+ sub eax,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,edx
+ jmp L_do_copy1
+
+L_contiguous_in_window:
+; 836 "inffast.S"
+ add esi,eax
+ sub esi,ecx
+
+
+ mov eax, [esp+24]
+ cmp eax,ecx
+ jbe L_do_copy1
+
+ sub eax,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,edx
+
+L_do_copy1:
+; 862 "inffast.S"
+ mov ecx,eax
+ rep movsb
+
+ mov esi, [esp+44]
+ jmp L_while_test
+; 878 "inffast.S"
+ALIGN 4
+L_init_mmx:
+ emms
+
+
+
+
+
+ movd mm0,ebp
+ mov ebp,ebx
+; 896 "inffast.S"
+ movd mm4,dword ptr [esp+0]
+ movq mm3,mm4
+ movd mm5,dword ptr [esp+4]
+ movq mm2,mm5
+ pxor mm1,mm1
+ mov ebx, [esp+8]
+ jmp L_do_loop_mmx
+
+ALIGN 4
+L_do_loop_mmx:
+ psrlq mm0,mm1
+
+ cmp ebp,32
+ ja L_get_length_code_mmx
+
+ movd mm6,ebp
+ movd mm7,dword ptr [esi]
+ add esi,4
+ psllq mm7,mm6
+ add ebp,32
+ por mm0,mm7
+
+L_get_length_code_mmx:
+ pand mm4,mm0
+ movd eax,mm4
+ movq mm4,mm3
+ mov eax, [ebx+eax*4]
+
+L_dolen_mmx:
+ movzx ecx,ah
+ movd mm1,ecx
+ sub ebp,ecx
+
+ test al,al
+ jnz L_test_for_length_base_mmx
+
+ shr eax,16
+ stosb
+
+L_while_test_mmx:
+
+
+ cmp [esp+16],edi
+ jbe L_break_loop
+
+ cmp [esp+20],esi
+ ja L_do_loop_mmx
+ jmp L_break_loop
+
+L_test_for_length_base_mmx:
+
+ mov edx,eax
+ shr edx,16
+
+ test al,16
+ jz L_test_for_second_level_length_mmx
+ and eax,15
+ jz L_decode_distance_mmx
+
+ psrlq mm0,mm1
+ movd mm1,eax
+ movd ecx,mm0
+ sub ebp,eax
+ and ecx, [inflate_fast_mask+eax*4]
+ add edx,ecx
+
+L_decode_distance_mmx:
+ psrlq mm0,mm1
+
+ cmp ebp,32
+ ja L_get_dist_code_mmx
+
+ movd mm6,ebp
+ movd mm7,dword ptr [esi]
+ add esi,4
+ psllq mm7,mm6
+ add ebp,32
+ por mm0,mm7
+
+L_get_dist_code_mmx:
+ mov ebx, [esp+12]
+ pand mm5,mm0
+ movd eax,mm5
+ movq mm5,mm2
+ mov eax, [ebx+eax*4]
+
+L_dodist_mmx:
+
+ movzx ecx,ah
+ mov ebx,eax
+ shr ebx,16
+ sub ebp,ecx
+ movd mm1,ecx
+
+ test al,16
+ jz L_test_for_second_level_dist_mmx
+ and eax,15
+ jz L_check_dist_one_mmx
+
+L_add_bits_to_dist_mmx:
+ psrlq mm0,mm1
+ movd mm1,eax
+ movd ecx,mm0
+ sub ebp,eax
+ and ecx, [inflate_fast_mask+eax*4]
+ add ebx,ecx
+
+L_check_window_mmx:
+ mov [esp+44],esi
+ mov eax,edi
+ sub eax, [esp+40]
+
+ cmp eax,ebx
+ jb L_clip_window_mmx
+
+ mov ecx,edx
+ mov esi,edi
+ sub esi,ebx
+
+ sub ecx,3
+ mov al, [esi]
+ mov [edi],al
+ mov al, [esi+1]
+ mov dl, [esi+2]
+ add esi,3
+ mov [edi+1],al
+ mov [edi+2],dl
+ add edi,3
+ rep movsb
+
+ mov esi, [esp+44]
+ mov ebx, [esp+8]
+ jmp L_while_test_mmx
+
+ALIGN 4
+L_check_dist_one_mmx:
+ cmp ebx,1
+ jne L_check_window_mmx
+ cmp [esp+40],edi
+ je L_check_window_mmx
+
+ dec edi
+ mov ecx,edx
+ mov al, [edi]
+ sub ecx,3
+
+ mov [edi+1],al
+ mov [edi+2],al
+ mov [edi+3],al
+ add edi,4
+ rep stosb
+
+ mov ebx, [esp+8]
+ jmp L_while_test_mmx
+
+ALIGN 4
+L_test_for_second_level_length_mmx:
+ test al,64
+ jnz L_test_for_end_of_block
+
+ and eax,15
+ psrlq mm0,mm1
+ movd ecx,mm0
+ and ecx, [inflate_fast_mask+eax*4]
+ add ecx,edx
+ mov eax, [ebx+ecx*4]
+ jmp L_dolen_mmx
+
+ALIGN 4
+L_test_for_second_level_dist_mmx:
+ test al,64
+ jnz L_invalid_distance_code
+
+ and eax,15
+ psrlq mm0,mm1
+ movd ecx,mm0
+ and ecx, [inflate_fast_mask+eax*4]
+ mov eax, [esp+12]
+ add ecx,ebx
+ mov eax, [eax+ecx*4]
+ jmp L_dodist_mmx
+
+ALIGN 4
+L_clip_window_mmx:
+
+ mov ecx,eax
+ mov eax, [esp+52]
+ neg ecx
+ mov esi, [esp+56]
+
+ cmp eax,ebx
+ jb L_invalid_distance_too_far
+
+ add ecx,ebx
+ cmp dword ptr [esp+48],0
+ jne L_wrap_around_window_mmx
+
+ sub eax,ecx
+ add esi,eax
+
+ cmp edx,ecx
+ jbe L_do_copy1_mmx
+
+ sub edx,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,ebx
+ jmp L_do_copy1_mmx
+
+ cmp edx,ecx
+ jbe L_do_copy1_mmx
+
+ sub edx,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,ebx
+ jmp L_do_copy1_mmx
+
+L_wrap_around_window_mmx:
+
+ mov eax, [esp+48]
+ cmp ecx,eax
+ jbe L_contiguous_in_window_mmx
+
+ add esi, [esp+52]
+ add esi,eax
+ sub esi,ecx
+ sub ecx,eax
+
+
+ cmp edx,ecx
+ jbe L_do_copy1_mmx
+
+ sub edx,ecx
+ rep movsb
+ mov esi, [esp+56]
+ mov ecx, [esp+48]
+ cmp edx,ecx
+ jbe L_do_copy1_mmx
+
+ sub edx,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,ebx
+ jmp L_do_copy1_mmx
+
+L_contiguous_in_window_mmx:
+
+ add esi,eax
+ sub esi,ecx
+
+
+ cmp edx,ecx
+ jbe L_do_copy1_mmx
+
+ sub edx,ecx
+ rep movsb
+ mov esi,edi
+ sub esi,ebx
+
+L_do_copy1_mmx:
+
+
+ mov ecx,edx
+ rep movsb
+
+ mov esi, [esp+44]
+ mov ebx, [esp+8]
+ jmp L_while_test_mmx
+; 1174 "inffast.S"
+L_invalid_distance_code:
+
+
+
+
+
+ mov ecx, invalid_distance_code_msg
+ mov edx,INFLATE_MODE_BAD
+ jmp L_update_stream_state
+
+L_test_for_end_of_block:
+
+
+
+
+
+ test al,32
+ jz L_invalid_literal_length_code
+
+ mov ecx,0
+ mov edx,INFLATE_MODE_TYPE
+ jmp L_update_stream_state
+
+L_invalid_literal_length_code:
+
+
+
+
+
+ mov ecx, invalid_literal_length_code_msg
+ mov edx,INFLATE_MODE_BAD
+ jmp L_update_stream_state
+
+L_invalid_distance_too_far:
+
+
+
+ mov esi, [esp+44]
+ mov ecx, invalid_distance_too_far_msg
+ mov edx,INFLATE_MODE_BAD
+ jmp L_update_stream_state
+
+L_update_stream_state:
+
+ mov eax, [esp+88]
+ test ecx,ecx
+ jz L_skip_msg
+ mov [eax+24],ecx
+L_skip_msg:
+ mov eax, [eax+28]
+ mov [eax+mode_state],edx
+ jmp L_break_loop
+
+ALIGN 4
+L_break_loop:
+; 1243 "inffast.S"
+ cmp dword ptr [inflate_fast_use_mmx],2
+ jne L_update_next_in
+
+
+
+ mov ebx,ebp
+
+L_update_next_in:
+; 1266 "inffast.S"
+ mov eax, [esp+88]
+ mov ecx,ebx
+ mov edx, [eax+28]
+ shr ecx,3
+ sub esi,ecx
+ shl ecx,3
+ sub ebx,ecx
+ mov [eax+12],edi
+ mov [edx+bits_state],ebx
+ mov ecx,ebx
+
+ lea ebx, [esp+28]
+ cmp [esp+20],ebx
+ jne L_buf_not_used
+
+ sub esi,ebx
+ mov ebx, [eax+0]
+ mov [esp+20],ebx
+ add esi,ebx
+ mov ebx, [eax+4]
+ sub ebx,11
+ add [esp+20],ebx
+
+L_buf_not_used:
+ mov [eax+0],esi
+
+ mov ebx,1
+ shl ebx,cl
+ dec ebx
+
+
+
+
+
+ cmp dword ptr [inflate_fast_use_mmx],2
+ jne L_update_hold
+
+
+
+ psrlq mm0,mm1
+ movd ebp,mm0
+
+ emms
+
+L_update_hold:
+
+
+
+ and ebp,ebx
+ mov [edx+hold_state],ebp
+
+
+
+
+ mov ebx, [esp+20]
+ cmp ebx,esi
+ jbe L_last_is_smaller
+
+ sub ebx,esi
+ add ebx,11
+ mov [eax+4],ebx
+ jmp L_fixup_out
+L_last_is_smaller:
+ sub esi,ebx
+ neg esi
+ add esi,11
+ mov [eax+4],esi
+
+
+
+
+L_fixup_out:
+
+ mov ebx, [esp+16]
+ cmp ebx,edi
+ jbe L_end_is_smaller
+
+ sub ebx,edi
+ add ebx,257
+ mov [eax+16],ebx
+ jmp L_done
+L_end_is_smaller:
+ sub edi,ebx
+ neg edi
+ add edi,257
+ mov [eax+16],edi
+
+
+
+
+
+L_done:
+ add esp,64
+ popfd
+ pop ebx
+ pop ebp
+ pop esi
+ pop edi
+ ret
+
+_TEXT ends
+end
diff --git a/3party/zlib/contrib/masmx86/match686.asm b/3party/zlib/contrib/masmx86/match686.asm new file mode 100644 index 0000000000..1eaf555026 --- /dev/null +++ b/3party/zlib/contrib/masmx86/match686.asm @@ -0,0 +1,478 @@ +; match686.asm -- Asm portion of the optimized longest_match for 32 bits x86
+; Copyright (C) 1995-1996 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+; File written by Gilles Vollant, by converting match686.S from Brian Raiter
+; for MASM. This is as assembly version of longest_match
+; from Jean-loup Gailly in deflate.c
+;
+; http://www.zlib.net
+; http://www.winimage.com/zLibDll
+; http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; For Visual C++ 4.x and higher and ML 6.x and higher
+; ml.exe is distributed in
+; http://www.microsoft.com/downloads/details.aspx?FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
+;
+; this file contain two implementation of longest_match
+;
+; this longest_match was written by Brian raiter (1998), optimized for Pentium Pro
+; (and the faster known version of match_init on modern Core 2 Duo and AMD Phenom)
+;
+; for using an assembly version of longest_match, you need define ASMV in project
+;
+; compile the asm file running
+; ml /coff /Zi /c /Flmatch686.lst match686.asm
+; and do not include match686.obj in your project
+;
+; note: contrib of zLib 1.2.3 and earlier contained both a deprecated version for
+; Pentium (prior Pentium Pro) and this version for Pentium Pro and modern processor
+; with autoselect (with cpu detection code)
+; if you want support the old pentium optimization, you can still use these version
+;
+; this file is not optimized for old pentium, but it compatible with all x86 32 bits
+; processor (starting 80386)
+;
+;
+; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2
+
+;uInt longest_match(s, cur_match)
+; deflate_state *s;
+; IPos cur_match; /* current match */
+
+ NbStack equ 76
+ cur_match equ dword ptr[esp+NbStack-0]
+ str_s equ dword ptr[esp+NbStack-4]
+; 5 dword on top (ret,ebp,esi,edi,ebx)
+ adrret equ dword ptr[esp+NbStack-8]
+ pushebp equ dword ptr[esp+NbStack-12]
+ pushedi equ dword ptr[esp+NbStack-16]
+ pushesi equ dword ptr[esp+NbStack-20]
+ pushebx equ dword ptr[esp+NbStack-24]
+
+ chain_length equ dword ptr [esp+NbStack-28]
+ limit equ dword ptr [esp+NbStack-32]
+ best_len equ dword ptr [esp+NbStack-36]
+ window equ dword ptr [esp+NbStack-40]
+ prev equ dword ptr [esp+NbStack-44]
+ scan_start equ word ptr [esp+NbStack-48]
+ wmask equ dword ptr [esp+NbStack-52]
+ match_start_ptr equ dword ptr [esp+NbStack-56]
+ nice_match equ dword ptr [esp+NbStack-60]
+ scan equ dword ptr [esp+NbStack-64]
+
+ windowlen equ dword ptr [esp+NbStack-68]
+ match_start equ dword ptr [esp+NbStack-72]
+ strend equ dword ptr [esp+NbStack-76]
+ NbStackAdd equ (NbStack-24)
+
+ .386p
+
+ name gvmatch
+ .MODEL FLAT
+
+
+
+; all the +zlib1222add offsets are due to the addition of fields
+; in zlib in the deflate_state structure since the asm code was first written
+; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+
+ zlib1222add equ 8
+
+; Note : these value are good with a 8 bytes boundary pack structure
+ dep_chain_length equ 74h+zlib1222add
+ dep_window equ 30h+zlib1222add
+ dep_strstart equ 64h+zlib1222add
+ dep_prev_length equ 70h+zlib1222add
+ dep_nice_match equ 88h+zlib1222add
+ dep_w_size equ 24h+zlib1222add
+ dep_prev equ 38h+zlib1222add
+ dep_w_mask equ 2ch+zlib1222add
+ dep_good_match equ 84h+zlib1222add
+ dep_match_start equ 68h+zlib1222add
+ dep_lookahead equ 6ch+zlib1222add
+
+
+_TEXT segment
+
+IFDEF NOUNDERLINE
+ public longest_match
+ public match_init
+ELSE
+ public _longest_match
+ public _match_init
+ENDIF
+
+ MAX_MATCH equ 258
+ MIN_MATCH equ 3
+ MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
+
+
+
+MAX_MATCH equ 258
+MIN_MATCH equ 3
+MIN_LOOKAHEAD equ (MAX_MATCH + MIN_MATCH + 1)
+MAX_MATCH_8_ equ ((MAX_MATCH + 7) AND 0FFF0h)
+
+
+;;; stack frame offsets
+
+chainlenwmask equ esp + 0 ; high word: current chain len
+ ; low word: s->wmask
+window equ esp + 4 ; local copy of s->window
+windowbestlen equ esp + 8 ; s->window + bestlen
+scanstart equ esp + 16 ; first two bytes of string
+scanend equ esp + 12 ; last two bytes of string
+scanalign equ esp + 20 ; dword-misalignment of string
+nicematch equ esp + 24 ; a good enough match size
+bestlen equ esp + 28 ; size of best match so far
+scan equ esp + 32 ; ptr to string wanting match
+
+LocalVarsSize equ 36
+; saved ebx byte esp + 36
+; saved edi byte esp + 40
+; saved esi byte esp + 44
+; saved ebp byte esp + 48
+; return address byte esp + 52
+deflatestate equ esp + 56 ; the function arguments
+curmatch equ esp + 60
+
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+dsWSize equ 36+zlib1222add
+dsWMask equ 44+zlib1222add
+dsWindow equ 48+zlib1222add
+dsPrev equ 56+zlib1222add
+dsMatchLen equ 88+zlib1222add
+dsPrevMatch equ 92+zlib1222add
+dsStrStart equ 100+zlib1222add
+dsMatchStart equ 104+zlib1222add
+dsLookahead equ 108+zlib1222add
+dsPrevLen equ 112+zlib1222add
+dsMaxChainLen equ 116+zlib1222add
+dsGoodMatch equ 132+zlib1222add
+dsNiceMatch equ 136+zlib1222add
+
+
+;;; match686.asm -- Pentium-Pro-optimized version of longest_match()
+;;; Written for zlib 1.1.2
+;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
+;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html
+;;;
+;;
+;; This software is provided 'as-is', without any express or implied
+;; warranty. In no event will the authors be held liable for any damages
+;; arising from the use of this software.
+;;
+;; Permission is granted to anyone to use this software for any purpose,
+;; including commercial applications, and to alter it and redistribute it
+;; freely, subject to the following restrictions:
+;;
+;; 1. The origin of this software must not be misrepresented; you must not
+;; claim that you wrote the original software. If you use this software
+;; in a product, an acknowledgment in the product documentation would be
+;; appreciated but is not required.
+;; 2. Altered source versions must be plainly marked as such, and must not be
+;; misrepresented as being the original software
+;; 3. This notice may not be removed or altered from any source distribution.
+;;
+
+;GLOBAL _longest_match, _match_init
+
+
+;SECTION .text
+
+;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
+
+;_longest_match:
+ IFDEF NOUNDERLINE
+ longest_match proc near
+ ELSE
+ _longest_match proc near
+ ENDIF
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+ push ebp
+ push edi
+ push esi
+ push ebx
+ sub esp, LocalVarsSize
+
+;;; Retrieve the function arguments. ecx will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+ mov edx, [deflatestate]
+ mov ecx, [curmatch]
+
+;;; uInt wmask = s->w_mask;
+;;; unsigned chain_length = s->max_chain_length;
+;;; if (s->prev_length >= s->good_match) {
+;;; chain_length >>= 2;
+;;; }
+
+ mov eax, [edx + dsPrevLen]
+ mov ebx, [edx + dsGoodMatch]
+ cmp eax, ebx
+ mov eax, [edx + dsWMask]
+ mov ebx, [edx + dsMaxChainLen]
+ jl LastMatchGood
+ shr ebx, 2
+LastMatchGood:
+
+;;; chainlen is decremented once beforehand so that the function can
+;;; use the sign flag instead of the zero flag for the exit test.
+;;; It is then shifted into the high word, to make room for the wmask
+;;; value, which it will always accompany.
+
+ dec ebx
+ shl ebx, 16
+ or ebx, eax
+ mov [chainlenwmask], ebx
+
+;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+ mov eax, [edx + dsNiceMatch]
+ mov ebx, [edx + dsLookahead]
+ cmp ebx, eax
+ jl LookaheadLess
+ mov ebx, eax
+LookaheadLess: mov [nicematch], ebx
+
+;;; register Bytef *scan = s->window + s->strstart;
+
+ mov esi, [edx + dsWindow]
+ mov [window], esi
+ mov ebp, [edx + dsStrStart]
+ lea edi, [esi + ebp]
+ mov [scan], edi
+
+;;; Determine how many bytes the scan ptr is off from being
+;;; dword-aligned.
+
+ mov eax, edi
+ neg eax
+ and eax, 3
+ mov [scanalign], eax
+
+;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+;;; s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+ mov eax, [edx + dsWSize]
+ sub eax, MIN_LOOKAHEAD
+ sub ebp, eax
+ jg LimitPositive
+ xor ebp, ebp
+LimitPositive:
+
+;;; int best_len = s->prev_length;
+
+ mov eax, [edx + dsPrevLen]
+ mov [bestlen], eax
+
+;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+ add esi, eax
+ mov [windowbestlen], esi
+
+;;; register ush scan_start = *(ushf*)scan;
+;;; register ush scan_end = *(ushf*)(scan+best_len-1);
+;;; Posf *prev = s->prev;
+
+ movzx ebx, word ptr [edi]
+ mov [scanstart], ebx
+ movzx ebx, word ptr [edi + eax - 1]
+ mov [scanend], ebx
+ mov edi, [edx + dsPrev]
+
+;;; Jump into the main loop.
+
+ mov edx, [chainlenwmask]
+ jmp short LoopEntry
+
+align 4
+
+;;; do {
+;;; match = s->window + cur_match;
+;;; if (*(ushf*)(match+best_len-1) != scan_end ||
+;;; *(ushf*)match != scan_start) continue;
+;;; [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;; && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; ecx = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+
+LookupLoop:
+ and ecx, edx
+ movzx ecx, word ptr [edi + ecx*2]
+ cmp ecx, ebp
+ jbe LeaveNow
+ sub edx, 00010000h
+ js LeaveNow
+LoopEntry: movzx eax, word ptr [esi + ecx - 1]
+ cmp eax, ebx
+ jnz LookupLoop
+ mov eax, [window]
+ movzx eax, word ptr [eax + ecx]
+ cmp eax, [scanstart]
+ jnz LookupLoop
+
+;;; Store the current value of chainlen.
+
+ mov [chainlenwmask], edx
+
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+
+ mov esi, [window]
+ mov edi, [scan]
+ add esi, ecx
+ mov eax, [scanalign]
+ mov edx, 0fffffef8h; -(MAX_MATCH_8)
+ lea edi, [edi + eax + 0108h] ;MAX_MATCH_8]
+ lea esi, [esi + eax + 0108h] ;MAX_MATCH_8]
+
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust edx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (esi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+
+LoopCmps:
+ mov eax, [esi + edx]
+ xor eax, [edi + edx]
+ jnz LeaveLoopCmps
+ mov eax, [esi + edx + 4]
+ xor eax, [edi + edx + 4]
+ jnz LeaveLoopCmps4
+ add edx, 8
+ jnz LoopCmps
+ jmp short LenMaximum
+LeaveLoopCmps4: add edx, 4
+LeaveLoopCmps: test eax, 0000FFFFh
+ jnz LenLower
+ add edx, 2
+ shr eax, 16
+LenLower: sub al, 1
+ adc edx, 0
+
+;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+;;; then automatically accept it as the best possible match and leave.
+
+ lea eax, [edi + edx]
+ mov edi, [scan]
+ sub eax, edi
+ cmp eax, MAX_MATCH
+ jge LenMaximum
+
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+
+ mov edx, [deflatestate]
+ mov ebx, [bestlen]
+ cmp eax, ebx
+ jg LongerMatch
+ mov esi, [windowbestlen]
+ mov edi, [edx + dsPrev]
+ mov ebx, [scanend]
+ mov edx, [chainlenwmask]
+ jmp LookupLoop
+
+;;; s->match_start = cur_match;
+;;; best_len = len;
+;;; if (len >= nice_match) break;
+;;; scan_end = *(ushf*)(scan+best_len-1);
+
+LongerMatch: mov ebx, [nicematch]
+ mov [bestlen], eax
+ mov [edx + dsMatchStart], ecx
+ cmp eax, ebx
+ jge LeaveNow
+ mov esi, [window]
+ add esi, eax
+ mov [windowbestlen], esi
+ movzx ebx, word ptr [edi + eax - 1]
+ mov edi, [edx + dsPrev]
+ mov [scanend], ebx
+ mov edx, [chainlenwmask]
+ jmp LookupLoop
+
+;;; Accept the current string, with the maximum possible length.
+
+LenMaximum: mov edx, [deflatestate]
+ mov dword ptr [bestlen], MAX_MATCH
+ mov [edx + dsMatchStart], ecx
+
+;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+;;; return s->lookahead;
+
+LeaveNow:
+ mov edx, [deflatestate]
+ mov ebx, [bestlen]
+ mov eax, [edx + dsLookahead]
+ cmp ebx, eax
+ jg LookaheadRet
+ mov eax, ebx
+LookaheadRet:
+
+;;; Restore the stack and return from whence we came.
+
+ add esp, LocalVarsSize
+ pop ebx
+ pop esi
+ pop edi
+ pop ebp
+
+ ret
+; please don't remove this string !
+; Your can freely use match686 in any free or commercial app if you don't remove the string in the binary!
+ db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah
+
+
+ IFDEF NOUNDERLINE
+ longest_match endp
+ ELSE
+ _longest_match endp
+ ENDIF
+
+ IFDEF NOUNDERLINE
+ match_init proc near
+ ret
+ match_init endp
+ ELSE
+ _match_init proc near
+ ret
+ _match_init endp
+ ENDIF
+
+
+_TEXT ends
+end
diff --git a/3party/zlib/contrib/masmx86/readme.txt b/3party/zlib/contrib/masmx86/readme.txt new file mode 100644 index 0000000000..3271f720a1 --- /dev/null +++ b/3party/zlib/contrib/masmx86/readme.txt @@ -0,0 +1,27 @@ +
+Summary
+-------
+This directory contains ASM implementations of the functions
+longest_match() and inflate_fast().
+
+
+Use instructions
+----------------
+Assemble using MASM, and copy the object files into the zlib source
+directory, then run the appropriate makefile, as suggested below. You can
+donwload MASM from here:
+
+ http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
+
+You can also get objects files here:
+
+ http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
+
+Build instructions
+------------------
+* With Microsoft C and MASM:
+nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj"
+
+* With Borland C and TASM:
+make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj" OBJPA="+match686c.obj+match686.obj+inffas32.obj"
+
diff --git a/3party/zlib/contrib/minizip/MiniZip64_Changes.txt b/3party/zlib/contrib/minizip/MiniZip64_Changes.txt new file mode 100644 index 0000000000..13a1bd91a9 --- /dev/null +++ b/3party/zlib/contrib/minizip/MiniZip64_Changes.txt @@ -0,0 +1,6 @@ + +MiniZip 1.1 was derrived from MiniZip at version 1.01f + +Change in 1.0 (Okt 2009) + - **TODO - Add history** + diff --git a/3party/zlib/contrib/minizip/MiniZip64_info.txt b/3party/zlib/contrib/minizip/MiniZip64_info.txt new file mode 100644 index 0000000000..57d7152420 --- /dev/null +++ b/3party/zlib/contrib/minizip/MiniZip64_info.txt @@ -0,0 +1,74 @@ +MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson + +Introduction +--------------------- +MiniZip 1.1 is built from MiniZip 1.0 by Gilles Vollant ( http://www.winimage.com/zLibDll/minizip.html ) + +When adding ZIP64 support into minizip it would result into risk of breaking compatibility with minizip 1.0. +All possible work was done for compatibility. + + +Background +--------------------- +When adding ZIP64 support Mathias Svensson found that Even Rouault have added ZIP64 +support for unzip.c into minizip for a open source project called gdal ( http://www.gdal.org/ ) + +That was used as a starting point. And after that ZIP64 support was added to zip.c +some refactoring and code cleanup was also done. + + +Changed from MiniZip 1.0 to MiniZip 1.1 +--------------------------------------- +* Added ZIP64 support for unzip ( by Even Rouault ) +* Added ZIP64 support for zip ( by Mathias Svensson ) +* Reverted some changed that Even Rouault did. +* Bunch of patches received from Gulles Vollant that he received for MiniZip from various users. +* Added unzip patch for BZIP Compression method (patch create by Daniel Borca) +* Added BZIP Compress method for zip +* Did some refactoring and code cleanup + + +Credits + + Gilles Vollant - Original MiniZip author + Even Rouault - ZIP64 unzip Support + Daniel Borca - BZip Compression method support in unzip + Mathias Svensson - ZIP64 zip support + Mathias Svensson - BZip Compression method support in zip + + Resources + + ZipLayout http://result42.com/projects/ZipFileLayout + Command line tool for Windows that shows the layout and information of the headers in a zip archive. + Used when debugging and validating the creation of zip files using MiniZip64 + + + ZIP App Note http://www.pkware.com/documents/casestudies/APPNOTE.TXT + Zip File specification + + +Notes. + * To be able to use BZip compression method in zip64.c or unzip64.c the BZIP2 lib is needed and HAVE_BZIP2 need to be defined. + +License +---------------------------------------------------------- + Condition of use and distribution are the same than zlib : + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + +---------------------------------------------------------- + diff --git a/3party/zlib/contrib/minizip/crypt.h b/3party/zlib/contrib/minizip/crypt.h new file mode 100644 index 0000000000..a01d08d932 --- /dev/null +++ b/3party/zlib/contrib/minizip/crypt.h @@ -0,0 +1,131 @@ +/* crypt.h -- base code for crypt/uncrypt ZIPfile + + + Version 1.01e, February 12th, 2005 + + Copyright (C) 1998-2005 Gilles Vollant + + This code is a modified version of crypting code in Infozip distribution + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + If you don't need crypting in your application, just define symbols + NOCRYPT and NOUNCRYPT. + + This code support the "Traditional PKWARE Encryption". + + The new AES encryption added on Zip format by Winzip (see the page + http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong + Encryption is not supported. +*/ + +#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) + +/*********************************************************************** + * Return the next byte in the pseudo-random sequence + */ +static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab) +{ + unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an + * unpredictable manner on 16-bit systems; not a problem + * with any known compiler so far, though */ + + temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2; + return (int)(((temp * (temp ^ 1)) >> 8) & 0xff); +} + +/*********************************************************************** + * Update the encryption keys with the next byte of plain text + */ +static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c) +{ + (*(pkeys+0)) = CRC32((*(pkeys+0)), c); + (*(pkeys+1)) += (*(pkeys+0)) & 0xff; + (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; + { + register int keyshift = (int)((*(pkeys+1)) >> 24); + (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift); + } + return c; +} + + +/*********************************************************************** + * Initialize the encryption keys and the random header according to + * the given password. + */ +static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab) +{ + *(pkeys+0) = 305419896L; + *(pkeys+1) = 591751049L; + *(pkeys+2) = 878082192L; + while (*passwd != '\0') { + update_keys(pkeys,pcrc_32_tab,(int)*passwd); + passwd++; + } +} + +#define zdecode(pkeys,pcrc_32_tab,c) \ + (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab))) + +#define zencode(pkeys,pcrc_32_tab,c,t) \ + (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c)) + +#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED + +#define RAND_HEAD_LEN 12 + /* "last resort" source for second part of crypt seed pattern */ +# ifndef ZCR_SEED2 +# define ZCR_SEED2 3141592654UL /* use PI as default pattern */ +# endif + +static int crypthead(const char* passwd, /* password string */ + unsigned char* buf, /* where to write header */ + int bufSize, + unsigned long* pkeys, + const unsigned long* pcrc_32_tab, + unsigned long crcForCrypting) +{ + int n; /* index in random header */ + int t; /* temporary */ + int c; /* random byte */ + unsigned char header[RAND_HEAD_LEN-2]; /* random header */ + static unsigned calls = 0; /* ensure different random header each time */ + + if (bufSize<RAND_HEAD_LEN) + return 0; + + /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the + * output of rand() to get less predictability, since rand() is + * often poorly implemented. + */ + if (++calls == 1) + { + srand((unsigned)(time(NULL) ^ ZCR_SEED2)); + } + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + c = (rand() >> 7) & 0xff; + header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t); + } + /* Encrypt random header (last two bytes is high word of crc) */ + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t); + } + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t); + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t); + return n; +} + +#endif diff --git a/3party/zlib/contrib/minizip/ioapi.c b/3party/zlib/contrib/minizip/ioapi.c new file mode 100644 index 0000000000..49958f61ff --- /dev/null +++ b/3party/zlib/contrib/minizip/ioapi.c @@ -0,0 +1,235 @@ +/* ioapi.h -- IO base function header for compress/uncompress .zip + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + +*/ + +#if (defined(_WIN32)) + #define _CRT_SECURE_NO_WARNINGS +#endif + +#include "ioapi.h" + +voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode) +{ + if (pfilefunc->zfile_func64.zopen64_file != NULL) + return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode); + else + { + return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode); + } +} + +long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) +{ + if (pfilefunc->zfile_func64.zseek64_file != NULL) + return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin); + else + { + uLong offsetTruncated = (uLong)offset; + if (offsetTruncated != offset) + return -1; + else + return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin); + } +} + +ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream) +{ + if (pfilefunc->zfile_func64.zseek64_file != NULL) + return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream); + else + { + uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream); + if ((tell_uLong) == ((uLong)-1)) + return (ZPOS64_T)-1; + else + return tell_uLong; + } +} + +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32) +{ + p_filefunc64_32->zfile_func64.zopen64_file = NULL; + p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; + p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; + p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; + p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file; + p_filefunc64_32->zfile_func64.ztell64_file = NULL; + p_filefunc64_32->zfile_func64.zseek64_file = NULL; + p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file; + p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; + p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque; + p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file; + p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file; +} + + + +static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode)); +static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size)); +static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream)); +static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream)); +static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream)); + +static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode) +{ + FILE* file = NULL; + const char* mode_fopen = NULL; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + mode_fopen = "rb"; + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + mode_fopen = "r+b"; + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) + mode_fopen = "wb"; + + if ((filename!=NULL) && (mode_fopen != NULL)) + file = fopen(filename, mode_fopen); + return file; +} + +static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode) +{ + FILE* file = NULL; + const char* mode_fopen = NULL; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + mode_fopen = "rb"; + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + mode_fopen = "r+b"; + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) + mode_fopen = "wb"; + + if ((filename!=NULL) && (mode_fopen != NULL)) + file = fopen64((const char*)filename, mode_fopen); + return file; +} + + +static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size) +{ + uLong ret; + ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); + return ret; +} + +static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size) +{ + uLong ret; + ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); + return ret; +} + +static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream) +{ + long ret; + ret = ftell((FILE *)stream); + return ret; +} + + +static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream) +{ + ZPOS64_T ret; + ret = ftello64((FILE *)stream); + return ret; +} + +static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin) +{ + int fseek_origin=0; + long ret; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + fseek_origin = SEEK_CUR; + break; + case ZLIB_FILEFUNC_SEEK_END : + fseek_origin = SEEK_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + fseek_origin = SEEK_SET; + break; + default: return -1; + } + ret = 0; + if (fseek((FILE *)stream, offset, fseek_origin) != 0) + ret = -1; + return ret; +} + +static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) +{ + int fseek_origin=0; + long ret; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + fseek_origin = SEEK_CUR; + break; + case ZLIB_FILEFUNC_SEEK_END : + fseek_origin = SEEK_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + fseek_origin = SEEK_SET; + break; + default: return -1; + } + ret = 0; + + if(fseeko64((FILE *)stream, offset, fseek_origin) != 0) + ret = -1; + + return ret; +} + + +static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream) +{ + int ret; + ret = fclose((FILE *)stream); + return ret; +} + +static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream) +{ + int ret; + ret = ferror((FILE *)stream); + return ret; +} + +void fill_fopen_filefunc (pzlib_filefunc_def) + zlib_filefunc_def* pzlib_filefunc_def; +{ + pzlib_filefunc_def->zopen_file = fopen_file_func; + pzlib_filefunc_def->zread_file = fread_file_func; + pzlib_filefunc_def->zwrite_file = fwrite_file_func; + pzlib_filefunc_def->ztell_file = ftell_file_func; + pzlib_filefunc_def->zseek_file = fseek_file_func; + pzlib_filefunc_def->zclose_file = fclose_file_func; + pzlib_filefunc_def->zerror_file = ferror_file_func; + pzlib_filefunc_def->opaque = NULL; +} + +void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen64_file = fopen64_file_func; + pzlib_filefunc_def->zread_file = fread_file_func; + pzlib_filefunc_def->zwrite_file = fwrite_file_func; + pzlib_filefunc_def->ztell64_file = ftell64_file_func; + pzlib_filefunc_def->zseek64_file = fseek64_file_func; + pzlib_filefunc_def->zclose_file = fclose_file_func; + pzlib_filefunc_def->zerror_file = ferror_file_func; + pzlib_filefunc_def->opaque = NULL; +} diff --git a/3party/zlib/contrib/minizip/ioapi.h b/3party/zlib/contrib/minizip/ioapi.h new file mode 100644 index 0000000000..8309c4cf8f --- /dev/null +++ b/3party/zlib/contrib/minizip/ioapi.h @@ -0,0 +1,200 @@ +/* ioapi.h -- IO base function header for compress/uncompress .zip + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + Changes + + Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this) + Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux. + More if/def section may be needed to support other platforms + Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows. + (but you should use iowin32.c for windows instead) + +*/ + +#ifndef _ZLIBIOAPI64_H +#define _ZLIBIOAPI64_H + +#if (!defined(_WIN32)) && (!defined(WIN32)) + + // Linux needs this to support file operation on files larger then 4+GB + // But might need better if/def to select just the platforms that needs them. + + #ifndef __USE_FILE_OFFSET64 + #define __USE_FILE_OFFSET64 + #endif + #ifndef __USE_LARGEFILE64 + #define __USE_LARGEFILE64 + #endif + #ifndef _LARGEFILE64_SOURCE + #define _LARGEFILE64_SOURCE + #endif + #ifndef _FILE_OFFSET_BIT + #define _FILE_OFFSET_BIT 64 + #endif +#endif + +#include <stdio.h> +#include <stdlib.h> +#include "zlib.h" + +#if defined(USE_FILE32API) +#define fopen64 fopen +#define ftello64 ftell +#define fseeko64 fseek +#else +#ifdef _MSC_VER + #define fopen64 fopen + #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) + #define ftello64 _ftelli64 + #define fseeko64 _fseeki64 + #else // old MSC + #define ftello64 ftell + #define fseeko64 fseek + #endif +#endif +#endif + +/* +#ifndef ZPOS64_T + #ifdef _WIN32 + #define ZPOS64_T fpos_t + #else + #include <stdint.h> + #define ZPOS64_T uint64_t + #endif +#endif +*/ + +#ifdef HAVE_MINIZIP64_CONF_H +#include "mz64conf.h" +#endif + +/* a type choosen by DEFINE */ +#ifdef HAVE_64BIT_INT_CUSTOM +typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T; +#else +#ifdef HAS_STDINT_H +#include "stdint.h" +typedef uint64_t ZPOS64_T; +#else + + +#if defined(_MSC_VER) || defined(__BORLANDC__) +typedef unsigned __int64 ZPOS64_T; +#else +typedef unsigned long long int ZPOS64_T; +#endif +#endif +#endif + + + +#ifdef __cplusplus +extern "C" { +#endif + + +#define ZLIB_FILEFUNC_SEEK_CUR (1) +#define ZLIB_FILEFUNC_SEEK_END (2) +#define ZLIB_FILEFUNC_SEEK_SET (0) + +#define ZLIB_FILEFUNC_MODE_READ (1) +#define ZLIB_FILEFUNC_MODE_WRITE (2) +#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) + +#define ZLIB_FILEFUNC_MODE_EXISTING (4) +#define ZLIB_FILEFUNC_MODE_CREATE (8) + + +#ifndef ZCALLBACK + #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) + #define ZCALLBACK CALLBACK + #else + #define ZCALLBACK + #endif +#endif + + + + +typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode)); +typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); +typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream)); + +typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream)); +typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin)); + + +/* here is the "old" 32 bits structure structure */ +typedef struct zlib_filefunc_def_s +{ + open_file_func zopen_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell_file_func ztell_file; + seek_file_func zseek_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; +} zlib_filefunc_def; + +typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream)); +typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode)); + +typedef struct zlib_filefunc64_def_s +{ + open64_file_func zopen64_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell64_file_func ztell64_file; + seek64_file_func zseek64_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; +} zlib_filefunc64_def; + +void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def)); +void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); + +/* now internal definition, only for zip.c and unzip.h */ +typedef struct zlib_filefunc64_32_def_s +{ + zlib_filefunc64_def zfile_func64; + open_file_func zopen32_file; + tell_file_func ztell32_file; + seek_file_func zseek32_file; +} zlib_filefunc64_32_def; + + +#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream)) +//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode)) +#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream)) +#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream)) + +voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)); +long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)); +ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)); + +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32); + +#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode))) +#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream))) +#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode))) + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/3party/zlib/contrib/minizip/iowin32.c b/3party/zlib/contrib/minizip/iowin32.c new file mode 100644 index 0000000000..6a2a883be7 --- /dev/null +++ b/3party/zlib/contrib/minizip/iowin32.c @@ -0,0 +1,389 @@ +/* iowin32.c -- IO base function header for compress/uncompress .zip + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + +*/ + +#include <stdlib.h> + +#include "zlib.h" +#include "ioapi.h" +#include "iowin32.h" + +#ifndef INVALID_HANDLE_VALUE +#define INVALID_HANDLE_VALUE (0xFFFFFFFF) +#endif + +#ifndef INVALID_SET_FILE_POINTER +#define INVALID_SET_FILE_POINTER ((DWORD)-1) +#endif + +voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode)); +uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); +ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream)); +long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream)); +int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream)); + +typedef struct +{ + HANDLE hf; + int error; +} WIN32FILE_IOWIN; + + +static void win32_translate_open_mode(int mode, + DWORD* lpdwDesiredAccess, + DWORD* lpdwCreationDisposition, + DWORD* lpdwShareMode, + DWORD* lpdwFlagsAndAttributes) +{ + *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0; + + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + { + *lpdwDesiredAccess = GENERIC_READ; + *lpdwCreationDisposition = OPEN_EXISTING; + *lpdwShareMode = FILE_SHARE_READ; + } + else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + { + *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; + *lpdwCreationDisposition = OPEN_EXISTING; + } + else if (mode & ZLIB_FILEFUNC_MODE_CREATE) + { + *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; + *lpdwCreationDisposition = CREATE_ALWAYS; + } +} + +static voidpf win32_build_iowin(HANDLE hFile) +{ + voidpf ret=NULL; + + if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE)) + { + WIN32FILE_IOWIN w32fiow; + w32fiow.hf = hFile; + w32fiow.error = 0; + ret = malloc(sizeof(WIN32FILE_IOWIN)); + + if (ret==NULL) + CloseHandle(hFile); + else + *((WIN32FILE_IOWIN*)ret) = w32fiow; + } + return ret; +} + +voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode) +{ + const char* mode_fopen = NULL; + DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; + HANDLE hFile = NULL; + + win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); + + if ((filename!=NULL) && (dwDesiredAccess != 0)) + hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); + + return win32_build_iowin(hFile); +} + + +voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode) +{ + const char* mode_fopen = NULL; + DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; + HANDLE hFile = NULL; + + win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); + + if ((filename!=NULL) && (dwDesiredAccess != 0)) + hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); + + return win32_build_iowin(hFile); +} + + +voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode) +{ + const char* mode_fopen = NULL; + DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; + HANDLE hFile = NULL; + + win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); + + if ((filename!=NULL) && (dwDesiredAccess != 0)) + hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); + + return win32_build_iowin(hFile); +} + + +voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode) +{ + const char* mode_fopen = NULL; + DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; + HANDLE hFile = NULL; + + win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); + + if ((filename!=NULL) && (dwDesiredAccess != 0)) + hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); + + return win32_build_iowin(hFile); +} + + +uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size) +{ + uLong ret=0; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + + if (hFile != NULL) + { + if (!ReadFile(hFile, buf, size, &ret, NULL)) + { + DWORD dwErr = GetLastError(); + if (dwErr == ERROR_HANDLE_EOF) + dwErr = 0; + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + } + } + + return ret; +} + + +uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size) +{ + uLong ret=0; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + + if (hFile != NULL) + { + if (!WriteFile(hFile, buf, size, &ret, NULL)) + { + DWORD dwErr = GetLastError(); + if (dwErr == ERROR_HANDLE_EOF) + dwErr = 0; + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + } + } + + return ret; +} + +long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream) +{ + long ret=-1; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + if (hFile != NULL) + { + DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT); + if (dwSet == INVALID_SET_FILE_POINTER) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = -1; + } + else + ret=(long)dwSet; + } + return ret; +} + +ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream) +{ + ZPOS64_T ret= (ZPOS64_T)-1; + HANDLE hFile = NULL; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream)->hf; + + if (hFile) + { + LARGE_INTEGER li; + li.QuadPart = 0; + li.u.LowPart = SetFilePointer(hFile, li.u.LowPart, &li.u.HighPart, FILE_CURRENT); + if ( (li.LowPart == 0xFFFFFFFF) && (GetLastError() != NO_ERROR)) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = (ZPOS64_T)-1; + } + else + ret=li.QuadPart; + } + return ret; +} + + +long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin) +{ + DWORD dwMoveMethod=0xFFFFFFFF; + HANDLE hFile = NULL; + + long ret=-1; + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + dwMoveMethod = FILE_CURRENT; + break; + case ZLIB_FILEFUNC_SEEK_END : + dwMoveMethod = FILE_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + dwMoveMethod = FILE_BEGIN; + break; + default: return -1; + } + + if (hFile != NULL) + { + DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod); + if (dwSet == INVALID_SET_FILE_POINTER) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = -1; + } + else + ret=0; + } + return ret; +} + +long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin) +{ + DWORD dwMoveMethod=0xFFFFFFFF; + HANDLE hFile = NULL; + long ret=-1; + + if (stream!=NULL) + hFile = ((WIN32FILE_IOWIN*)stream)->hf; + + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + dwMoveMethod = FILE_CURRENT; + break; + case ZLIB_FILEFUNC_SEEK_END : + dwMoveMethod = FILE_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + dwMoveMethod = FILE_BEGIN; + break; + default: return -1; + } + + if (hFile) + { + LARGE_INTEGER* li = (LARGE_INTEGER*)&offset; + DWORD dwSet = SetFilePointer(hFile, li->u.LowPart, &li->u.HighPart, dwMoveMethod); + if (dwSet == INVALID_SET_FILE_POINTER) + { + DWORD dwErr = GetLastError(); + ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; + ret = -1; + } + else + ret=0; + } + return ret; +} + +int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream) +{ + int ret=-1; + + if (stream!=NULL) + { + HANDLE hFile; + hFile = ((WIN32FILE_IOWIN*)stream) -> hf; + if (hFile != NULL) + { + CloseHandle(hFile); + ret=0; + } + free(stream); + } + return ret; +} + +int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream) +{ + int ret=-1; + if (stream!=NULL) + { + ret = ((WIN32FILE_IOWIN*)stream) -> error; + } + return ret; +} + +void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen_file = win32_open_file_func; + pzlib_filefunc_def->zread_file = win32_read_file_func; + pzlib_filefunc_def->zwrite_file = win32_write_file_func; + pzlib_filefunc_def->ztell_file = win32_tell_file_func; + pzlib_filefunc_def->zseek_file = win32_seek_file_func; + pzlib_filefunc_def->zclose_file = win32_close_file_func; + pzlib_filefunc_def->zerror_file = win32_error_file_func; + pzlib_filefunc_def->opaque = NULL; +} + +void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen64_file = win32_open64_file_func; + pzlib_filefunc_def->zread_file = win32_read_file_func; + pzlib_filefunc_def->zwrite_file = win32_write_file_func; + pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; + pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; + pzlib_filefunc_def->zclose_file = win32_close_file_func; + pzlib_filefunc_def->zerror_file = win32_error_file_func; + pzlib_filefunc_def->opaque = NULL; +} + + +void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA; + pzlib_filefunc_def->zread_file = win32_read_file_func; + pzlib_filefunc_def->zwrite_file = win32_write_file_func; + pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; + pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; + pzlib_filefunc_def->zclose_file = win32_close_file_func; + pzlib_filefunc_def->zerror_file = win32_error_file_func; + pzlib_filefunc_def->opaque = NULL; +} + + +void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW; + pzlib_filefunc_def->zread_file = win32_read_file_func; + pzlib_filefunc_def->zwrite_file = win32_write_file_func; + pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; + pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; + pzlib_filefunc_def->zclose_file = win32_close_file_func; + pzlib_filefunc_def->zerror_file = win32_error_file_func; + pzlib_filefunc_def->opaque = NULL; +} diff --git a/3party/zlib/contrib/minizip/iowin32.h b/3party/zlib/contrib/minizip/iowin32.h new file mode 100644 index 0000000000..0ca0969a7d --- /dev/null +++ b/3party/zlib/contrib/minizip/iowin32.h @@ -0,0 +1,28 @@ +/* iowin32.h -- IO base function header for compress/uncompress .zip + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + +*/ + +#include <windows.h> + + +#ifdef __cplusplus +extern "C" { +#endif + +void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); +void fill_win32_filefunc64 OF((zlib_filefunc64_def* pzlib_filefunc_def)); +void fill_win32_filefunc64A OF((zlib_filefunc64_def* pzlib_filefunc_def)); +void fill_win32_filefunc64W OF((zlib_filefunc64_def* pzlib_filefunc_def)); + +#ifdef __cplusplus +} +#endif diff --git a/3party/zlib/contrib/minizip/make_vms.com b/3party/zlib/contrib/minizip/make_vms.com new file mode 100644 index 0000000000..9ac13a98fa --- /dev/null +++ b/3party/zlib/contrib/minizip/make_vms.com @@ -0,0 +1,25 @@ +$ if f$search("ioapi.h_orig") .eqs. "" then copy ioapi.h ioapi.h_orig +$ open/write zdef vmsdefs.h +$ copy sys$input: zdef +$ deck +#define unix +#define fill_zlib_filefunc64_32_def_from_filefunc32 fillzffunc64from +#define Write_Zip64EndOfCentralDirectoryLocator Write_Zip64EoDLocator +#define Write_Zip64EndOfCentralDirectoryRecord Write_Zip64EoDRecord +#define Write_EndOfCentralDirectoryRecord Write_EoDRecord +$ eod +$ close zdef +$ copy vmsdefs.h,ioapi.h_orig ioapi.h +$ cc/include=[--]/prefix=all ioapi.c +$ cc/include=[--]/prefix=all miniunz.c +$ cc/include=[--]/prefix=all unzip.c +$ cc/include=[--]/prefix=all minizip.c +$ cc/include=[--]/prefix=all zip.c +$ link miniunz,unzip,ioapi,[--]libz.olb/lib +$ link minizip,zip,ioapi,[--]libz.olb/lib +$ mcr []minizip test minizip_info.txt +$ mcr []miniunz -l test.zip +$ rename minizip_info.txt; minizip_info.txt_old +$ mcr []miniunz test.zip +$ delete test.zip;* +$exit diff --git a/3party/zlib/contrib/minizip/miniunz.c b/3party/zlib/contrib/minizip/miniunz.c new file mode 100644 index 0000000000..9ed009fbd9 --- /dev/null +++ b/3party/zlib/contrib/minizip/miniunz.c @@ -0,0 +1,648 @@ +/* + miniunz.c + Version 1.1, February 14h, 2010 + sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) +*/ + +#ifndef _WIN32 + #ifndef __USE_FILE_OFFSET64 + #define __USE_FILE_OFFSET64 + #endif + #ifndef __USE_LARGEFILE64 + #define __USE_LARGEFILE64 + #endif + #ifndef _LARGEFILE64_SOURCE + #define _LARGEFILE64_SOURCE + #endif + #ifndef _FILE_OFFSET_BIT + #define _FILE_OFFSET_BIT 64 + #endif +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <errno.h> +#include <fcntl.h> + +#ifdef unix +# include <unistd.h> +# include <utime.h> +#else +# include <direct.h> +# include <io.h> +#endif + +#include "unzip.h" + +#define CASESENSITIVITY (0) +#define WRITEBUFFERSIZE (8192) +#define MAXFILENAME (256) + +#ifdef _WIN32 +#define USEWIN32IOAPI +#include "iowin32.h" +#endif +/* + mini unzip, demo of unzip package + + usage : + Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir] + + list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT + if it exists +*/ + + +/* change_file_date : change the date/time of a file + filename : the filename of the file where date/time must be modified + dosdate : the new date at the MSDos format (4 bytes) + tmu_date : the SAME new date at the tm_unz format */ +void change_file_date(filename,dosdate,tmu_date) + const char *filename; + uLong dosdate; + tm_unz tmu_date; +{ +#ifdef _WIN32 + HANDLE hFile; + FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; + + hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE, + 0,NULL,OPEN_EXISTING,0,NULL); + GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); + DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); + LocalFileTimeToFileTime(&ftLocal,&ftm); + SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); + CloseHandle(hFile); +#else +#ifdef unix + struct utimbuf ut; + struct tm newdate; + newdate.tm_sec = tmu_date.tm_sec; + newdate.tm_min=tmu_date.tm_min; + newdate.tm_hour=tmu_date.tm_hour; + newdate.tm_mday=tmu_date.tm_mday; + newdate.tm_mon=tmu_date.tm_mon; + if (tmu_date.tm_year > 1900) + newdate.tm_year=tmu_date.tm_year - 1900; + else + newdate.tm_year=tmu_date.tm_year ; + newdate.tm_isdst=-1; + + ut.actime=ut.modtime=mktime(&newdate); + utime(filename,&ut); +#endif +#endif +} + + +/* mymkdir and change_file_date are not 100 % portable + As I don't know well Unix, I wait feedback for the unix portion */ + +int mymkdir(dirname) + const char* dirname; +{ + int ret=0; +#ifdef _WIN32 + ret = _mkdir(dirname); +#else +#ifdef unix + ret = mkdir (dirname,0775); +#endif +#endif + return ret; +} + +int makedir (newdir) + char *newdir; +{ + char *buffer ; + char *p; + int len = (int)strlen(newdir); + + if (len <= 0) + return 0; + + buffer = (char*)malloc(len+1); + if (buffer==NULL) + { + printf("Error allocating memory\n"); + return UNZ_INTERNALERROR; + } + strcpy(buffer,newdir); + + if (buffer[len-1] == '/') { + buffer[len-1] = '\0'; + } + if (mymkdir(buffer) == 0) + { + free(buffer); + return 1; + } + + p = buffer+1; + while (1) + { + char hold; + + while(*p && *p != '\\' && *p != '/') + p++; + hold = *p; + *p = 0; + if ((mymkdir(buffer) == -1) && (errno == ENOENT)) + { + printf("couldn't create directory %s\n",buffer); + free(buffer); + return 0; + } + if (hold == 0) + break; + *p++ = hold; + } + free(buffer); + return 1; +} + +void do_banner() +{ + printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n"); + printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); +} + +void do_help() +{ + printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \ + " -e Extract without pathname (junk paths)\n" \ + " -x Extract with pathname\n" \ + " -v list files\n" \ + " -l list files\n" \ + " -d directory to extract into\n" \ + " -o overwrite files without prompting\n" \ + " -p extract crypted file using password\n\n"); +} + +void Display64BitsSize(ZPOS64_T n, int size_char) +{ + /* to avoid compatibility problem , we do here the conversion */ + char number[21]; + int offset=19; + int pos_string = 19; + number[20]=0; + for (;;) { + number[offset]=(char)((n%10)+'0'); + if (number[offset] != '0') + pos_string=offset; + n/=10; + if (offset==0) + break; + offset--; + } + { + int size_display_string = 19-pos_string; + while (size_char > size_display_string) + { + size_char--; + printf(" "); + } + } + + printf("%s",&number[pos_string]); +} + +int do_list(uf) + unzFile uf; +{ + uLong i; + unz_global_info64 gi; + int err; + + err = unzGetGlobalInfo64(uf,&gi); + if (err!=UNZ_OK) + printf("error %d with zipfile in unzGetGlobalInfo \n",err); + printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); + printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); + for (i=0;i<gi.number_entry;i++) + { + char filename_inzip[256]; + unz_file_info64 file_info; + uLong ratio=0; + const char *string_method; + char charCrypt=' '; + err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); + break; + } + if (file_info.uncompressed_size>0) + ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size); + + /* display a '*' if the file is crypted */ + if ((file_info.flag & 1) != 0) + charCrypt='*'; + + if (file_info.compression_method==0) + string_method="Stored"; + else + if (file_info.compression_method==Z_DEFLATED) + { + uInt iLevel=(uInt)((file_info.flag & 0x6)/2); + if (iLevel==0) + string_method="Defl:N"; + else if (iLevel==1) + string_method="Defl:X"; + else if ((iLevel==2) || (iLevel==3)) + string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ + } + else + if (file_info.compression_method==Z_BZIP2ED) + { + string_method="BZip2 "; + } + else + string_method="Unkn. "; + + Display64BitsSize(file_info.uncompressed_size,7); + printf(" %6s%c",string_method,charCrypt); + Display64BitsSize(file_info.compressed_size,7); + printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", + ratio, + (uLong)file_info.tmu_date.tm_mon + 1, + (uLong)file_info.tmu_date.tm_mday, + (uLong)file_info.tmu_date.tm_year % 100, + (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min, + (uLong)file_info.crc,filename_inzip); + if ((i+1)<gi.number_entry) + { + err = unzGoToNextFile(uf); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzGoToNextFile\n",err); + break; + } + } + } + + return 0; +} + + +int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password) + unzFile uf; + const int* popt_extract_without_path; + int* popt_overwrite; + const char* password; +{ + char filename_inzip[256]; + char* filename_withoutpath; + char* p; + int err=UNZ_OK; + FILE *fout=NULL; + void* buf; + uInt size_buf; + + unz_file_info64 file_info; + uLong ratio=0; + err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); + + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); + return err; + } + + size_buf = WRITEBUFFERSIZE; + buf = (void*)malloc(size_buf); + if (buf==NULL) + { + printf("Error allocating memory\n"); + return UNZ_INTERNALERROR; + } + + p = filename_withoutpath = filename_inzip; + while ((*p) != '\0') + { + if (((*p)=='/') || ((*p)=='\\')) + filename_withoutpath = p+1; + p++; + } + + if ((*filename_withoutpath)=='\0') + { + if ((*popt_extract_without_path)==0) + { + printf("creating directory: %s\n",filename_inzip); + mymkdir(filename_inzip); + } + } + else + { + const char* write_filename; + int skip=0; + + if ((*popt_extract_without_path)==0) + write_filename = filename_inzip; + else + write_filename = filename_withoutpath; + + err = unzOpenCurrentFilePassword(uf,password); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err); + } + + if (((*popt_overwrite)==0) && (err==UNZ_OK)) + { + char rep=0; + FILE* ftestexist; + ftestexist = fopen64(write_filename,"rb"); + if (ftestexist!=NULL) + { + fclose(ftestexist); + do + { + char answer[128]; + int ret; + + printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename); + ret = scanf("%1s",answer); + if (ret != 1) + { + exit(EXIT_FAILURE); + } + rep = answer[0] ; + if ((rep>='a') && (rep<='z')) + rep -= 0x20; + } + while ((rep!='Y') && (rep!='N') && (rep!='A')); + } + + if (rep == 'N') + skip = 1; + + if (rep == 'A') + *popt_overwrite=1; + } + + if ((skip==0) && (err==UNZ_OK)) + { + fout=fopen64(write_filename,"wb"); + + /* some zipfile don't contain directory alone before file */ + if ((fout==NULL) && ((*popt_extract_without_path)==0) && + (filename_withoutpath!=(char*)filename_inzip)) + { + char c=*(filename_withoutpath-1); + *(filename_withoutpath-1)='\0'; + makedir(write_filename); + *(filename_withoutpath-1)=c; + fout=fopen64(write_filename,"wb"); + } + + if (fout==NULL) + { + printf("error opening %s\n",write_filename); + } + } + + if (fout!=NULL) + { + printf(" extracting: %s\n",write_filename); + + do + { + err = unzReadCurrentFile(uf,buf,size_buf); + if (err<0) + { + printf("error %d with zipfile in unzReadCurrentFile\n",err); + break; + } + if (err>0) + if (fwrite(buf,err,1,fout)!=1) + { + printf("error in writing extracted file\n"); + err=UNZ_ERRNO; + break; + } + } + while (err>0); + if (fout) + fclose(fout); + + if (err==0) + change_file_date(write_filename,file_info.dosDate, + file_info.tmu_date); + } + + if (err==UNZ_OK) + { + err = unzCloseCurrentFile (uf); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzCloseCurrentFile\n",err); + } + } + else + unzCloseCurrentFile(uf); /* don't lose the error */ + } + + free(buf); + return err; +} + + +int do_extract(uf,opt_extract_without_path,opt_overwrite,password) + unzFile uf; + int opt_extract_without_path; + int opt_overwrite; + const char* password; +{ + uLong i; + unz_global_info64 gi; + int err; + FILE* fout=NULL; + + err = unzGetGlobalInfo64(uf,&gi); + if (err!=UNZ_OK) + printf("error %d with zipfile in unzGetGlobalInfo \n",err); + + for (i=0;i<gi.number_entry;i++) + { + if (do_extract_currentfile(uf,&opt_extract_without_path, + &opt_overwrite, + password) != UNZ_OK) + break; + + if ((i+1)<gi.number_entry) + { + err = unzGoToNextFile(uf); + if (err!=UNZ_OK) + { + printf("error %d with zipfile in unzGoToNextFile\n",err); + break; + } + } + } + + return 0; +} + +int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password) + unzFile uf; + const char* filename; + int opt_extract_without_path; + int opt_overwrite; + const char* password; +{ + int err = UNZ_OK; + if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK) + { + printf("file %s not found in the zipfile\n",filename); + return 2; + } + + if (do_extract_currentfile(uf,&opt_extract_without_path, + &opt_overwrite, + password) == UNZ_OK) + return 0; + else + return 1; +} + + +int main(argc,argv) + int argc; + char *argv[]; +{ + const char *zipfilename=NULL; + const char *filename_to_extract=NULL; + const char *password=NULL; + char filename_try[MAXFILENAME+16] = ""; + int i; + int ret_value=0; + int opt_do_list=0; + int opt_do_extract=1; + int opt_do_extract_withoutpath=0; + int opt_overwrite=0; + int opt_extractdir=0; + const char *dirname=NULL; + unzFile uf=NULL; + + do_banner(); + if (argc==1) + { + do_help(); + return 0; + } + else + { + for (i=1;i<argc;i++) + { + if ((*argv[i])=='-') + { + const char *p=argv[i]+1; + + while ((*p)!='\0') + { + char c=*(p++);; + if ((c=='l') || (c=='L')) + opt_do_list = 1; + if ((c=='v') || (c=='V')) + opt_do_list = 1; + if ((c=='x') || (c=='X')) + opt_do_extract = 1; + if ((c=='e') || (c=='E')) + opt_do_extract = opt_do_extract_withoutpath = 1; + if ((c=='o') || (c=='O')) + opt_overwrite=1; + if ((c=='d') || (c=='D')) + { + opt_extractdir=1; + dirname=argv[i+1]; + } + + if (((c=='p') || (c=='P')) && (i+1<argc)) + { + password=argv[i+1]; + i++; + } + } + } + else + { + if (zipfilename == NULL) + zipfilename = argv[i]; + else if ((filename_to_extract==NULL) && (!opt_extractdir)) + filename_to_extract = argv[i] ; + } + } + } + + if (zipfilename!=NULL) + { + +# ifdef USEWIN32IOAPI + zlib_filefunc64_def ffunc; +# endif + + strncpy(filename_try, zipfilename,MAXFILENAME-1); + /* strncpy doesnt append the trailing NULL, of the string is too long. */ + filename_try[ MAXFILENAME ] = '\0'; + +# ifdef USEWIN32IOAPI + fill_win32_filefunc64A(&ffunc); + uf = unzOpen2_64(zipfilename,&ffunc); +# else + uf = unzOpen64(zipfilename); +# endif + if (uf==NULL) + { + strcat(filename_try,".zip"); +# ifdef USEWIN32IOAPI + uf = unzOpen2_64(filename_try,&ffunc); +# else + uf = unzOpen64(filename_try); +# endif + } + } + + if (uf==NULL) + { + printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename); + return 1; + } + printf("%s opened\n",filename_try); + + if (opt_do_list==1) + ret_value = do_list(uf); + else if (opt_do_extract==1) + { +#ifdef _WIN32 + if (opt_extractdir && _chdir(dirname)) +#else + if (opt_extractdir && chdir(dirname)) +#endif + { + printf("Error changing into %s, aborting\n", dirname); + exit(-1); + } + + if (filename_to_extract == NULL) + ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password); + else + ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password); + } + + unzClose(uf); + + return ret_value; +} diff --git a/3party/zlib/contrib/minizip/minizip.c b/3party/zlib/contrib/minizip/minizip.c new file mode 100644 index 0000000000..7a4fa5a643 --- /dev/null +++ b/3party/zlib/contrib/minizip/minizip.c @@ -0,0 +1,507 @@ +/* + minizip.c + Version 1.1, February 14h, 2010 + sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) +*/ + + +#ifndef _WIN32 + #ifndef __USE_FILE_OFFSET64 + #define __USE_FILE_OFFSET64 + #endif + #ifndef __USE_LARGEFILE64 + #define __USE_LARGEFILE64 + #endif + #ifndef _LARGEFILE64_SOURCE + #define _LARGEFILE64_SOURCE + #endif + #ifndef _FILE_OFFSET_BIT + #define _FILE_OFFSET_BIT 64 + #endif +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <errno.h> +#include <fcntl.h> + +#ifdef unix +# include <unistd.h> +# include <utime.h> +# include <sys/types.h> +# include <sys/stat.h> +#else +# include <direct.h> +# include <io.h> +#endif + +#include "zip.h" + +#ifdef _WIN32 + #define USEWIN32IOAPI + #include "iowin32.h" +#endif + + + +#define WRITEBUFFERSIZE (16384) +#define MAXFILENAME (256) + +#ifdef _WIN32 +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + int ret = 0; + { + FILETIME ftLocal; + HANDLE hFind; + WIN32_FIND_DATAA ff32; + + hFind = FindFirstFileA(f,&ff32); + if (hFind != INVALID_HANDLE_VALUE) + { + FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal); + FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0); + FindClose(hFind); + ret = 1; + } + } + return ret; +} +#else +#ifdef unix +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + int ret=0; + struct stat s; /* results of stat() */ + struct tm* filedate; + time_t tm_t=0; + + if (strcmp(f,"-")!=0) + { + char name[MAXFILENAME+1]; + int len = strlen(f); + if (len > MAXFILENAME) + len = MAXFILENAME; + + strncpy(name, f,MAXFILENAME-1); + /* strncpy doesnt append the trailing NULL, of the string is too long. */ + name[ MAXFILENAME ] = '\0'; + + if (name[len - 1] == '/') + name[len - 1] = '\0'; + /* not all systems allow stat'ing a file with / appended */ + if (stat(name,&s)==0) + { + tm_t = s.st_mtime; + ret = 1; + } + } + filedate = localtime(&tm_t); + + tmzip->tm_sec = filedate->tm_sec; + tmzip->tm_min = filedate->tm_min; + tmzip->tm_hour = filedate->tm_hour; + tmzip->tm_mday = filedate->tm_mday; + tmzip->tm_mon = filedate->tm_mon ; + tmzip->tm_year = filedate->tm_year; + + return ret; +} +#else +uLong filetime(f, tmzip, dt) + char *f; /* name of file to get info on */ + tm_zip *tmzip; /* return value: access, modific. and creation times */ + uLong *dt; /* dostime */ +{ + return 0; +} +#endif +#endif + + + + +int check_exist_file(filename) + const char* filename; +{ + FILE* ftestexist; + int ret = 1; + ftestexist = fopen64(filename,"rb"); + if (ftestexist==NULL) + ret = 0; + else + fclose(ftestexist); + return ret; +} + +void do_banner() +{ + printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n"); + printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n"); +} + +void do_help() +{ + printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \ + " -o Overwrite existing file.zip\n" \ + " -a Append to existing file.zip\n" \ + " -0 Store only\n" \ + " -1 Compress faster\n" \ + " -9 Compress better\n\n" \ + " -j exclude path. store only the file name.\n\n"); +} + +/* calculate the CRC32 of a file, + because to encrypt a file, we need known the CRC32 of the file before */ +int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc) +{ + unsigned long calculate_crc=0; + int err=ZIP_OK; + FILE * fin = fopen64(filenameinzip,"rb"); + unsigned long size_read = 0; + unsigned long total_read = 0; + if (fin==NULL) + { + err = ZIP_ERRNO; + } + + if (err == ZIP_OK) + do + { + err = ZIP_OK; + size_read = (int)fread(buf,1,size_buf,fin); + if (size_read < size_buf) + if (feof(fin)==0) + { + printf("error in reading %s\n",filenameinzip); + err = ZIP_ERRNO; + } + + if (size_read>0) + calculate_crc = crc32(calculate_crc,buf,size_read); + total_read += size_read; + + } while ((err == ZIP_OK) && (size_read>0)); + + if (fin) + fclose(fin); + + *result_crc=calculate_crc; + printf("file %s crc %lx\n", filenameinzip, calculate_crc); + return err; +} + +int isLargeFile(const char* filename) +{ + int largeFile = 0; + ZPOS64_T pos = 0; + FILE* pFile = fopen64(filename, "rb"); + + if(pFile != NULL) + { + int n = fseeko64(pFile, 0, SEEK_END); + + pos = ftello64(pFile); + + printf("File : %s is %lld bytes\n", filename, pos); + + if(pos >= 0xffffffff) + largeFile = 1; + + fclose(pFile); + } + + return largeFile; +} + +int main(argc,argv) + int argc; + char *argv[]; +{ + int i; + int opt_overwrite=0; + int opt_compress_level=Z_DEFAULT_COMPRESSION; + int opt_exclude_path=0; + int zipfilenamearg = 0; + char filename_try[MAXFILENAME+16]; + int zipok; + int err=0; + int size_buf=0; + void* buf=NULL; + const char* password=NULL; + + + do_banner(); + if (argc==1) + { + do_help(); + return 0; + } + else + { + for (i=1;i<argc;i++) + { + if ((*argv[i])=='-') + { + const char *p=argv[i]+1; + + while ((*p)!='\0') + { + char c=*(p++);; + if ((c=='o') || (c=='O')) + opt_overwrite = 1; + if ((c=='a') || (c=='A')) + opt_overwrite = 2; + if ((c>='0') && (c<='9')) + opt_compress_level = c-'0'; + if ((c=='j') || (c=='J')) + opt_exclude_path = 1; + + if (((c=='p') || (c=='P')) && (i+1<argc)) + { + password=argv[i+1]; + i++; + } + } + } + else + { + if (zipfilenamearg == 0) + { + zipfilenamearg = i ; + } + } + } + } + + size_buf = WRITEBUFFERSIZE; + buf = (void*)malloc(size_buf); + if (buf==NULL) + { + printf("Error allocating memory\n"); + return ZIP_INTERNALERROR; + } + + if (zipfilenamearg==0) + { + zipok=0; + } + else + { + int i,len; + int dot_found=0; + + zipok = 1 ; + strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1); + /* strncpy doesnt append the trailing NULL, of the string is too long. */ + filename_try[ MAXFILENAME ] = '\0'; + + len=(int)strlen(filename_try); + for (i=0;i<len;i++) + if (filename_try[i]=='.') + dot_found=1; + + if (dot_found==0) + strcat(filename_try,".zip"); + + if (opt_overwrite==2) + { + /* if the file don't exist, we not append file */ + if (check_exist_file(filename_try)==0) + opt_overwrite=1; + } + else + if (opt_overwrite==0) + if (check_exist_file(filename_try)!=0) + { + char rep=0; + do + { + char answer[128]; + int ret; + printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try); + ret = scanf("%1s",answer); + if (ret != 1) + { + exit(EXIT_FAILURE); + } + rep = answer[0] ; + if ((rep>='a') && (rep<='z')) + rep -= 0x20; + } + while ((rep!='Y') && (rep!='N') && (rep!='A')); + if (rep=='N') + zipok = 0; + if (rep=='A') + opt_overwrite = 2; + } + } + + if (zipok==1) + { + zipFile zf; + int errclose; +# ifdef USEWIN32IOAPI + zlib_filefunc64_def ffunc; + fill_win32_filefunc64A(&ffunc); + zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc); +# else + zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0); +# endif + + if (zf == NULL) + { + printf("error opening %s\n",filename_try); + err= ZIP_ERRNO; + } + else + printf("creating %s\n",filename_try); + + for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++) + { + if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) && + ((argv[i][1]=='o') || (argv[i][1]=='O') || + (argv[i][1]=='a') || (argv[i][1]=='A') || + (argv[i][1]=='p') || (argv[i][1]=='P') || + ((argv[i][1]>='0') || (argv[i][1]<='9'))) && + (strlen(argv[i]) == 2))) + { + FILE * fin; + int size_read; + const char* filenameinzip = argv[i]; + const char *savefilenameinzip; + zip_fileinfo zi; + unsigned long crcFile=0; + int zip64 = 0; + + zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour = + zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0; + zi.dosDate = 0; + zi.internal_fa = 0; + zi.external_fa = 0; + filetime(filenameinzip,&zi.tmz_date,&zi.dosDate); + +/* + err = zipOpenNewFileInZip(zf,filenameinzip,&zi, + NULL,0,NULL,0,NULL / * comment * /, + (opt_compress_level != 0) ? Z_DEFLATED : 0, + opt_compress_level); +*/ + if ((password != NULL) && (err==ZIP_OK)) + err = getFileCrc(filenameinzip,buf,size_buf,&crcFile); + + zip64 = isLargeFile(filenameinzip); + + /* The path name saved, should not include a leading slash. */ + /*if it did, windows/xp and dynazip couldn't read the zip file. */ + savefilenameinzip = filenameinzip; + while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' ) + { + savefilenameinzip++; + } + + /*should the zip file contain any path at all?*/ + if( opt_exclude_path ) + { + const char *tmpptr; + const char *lastslash = 0; + for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++) + { + if( *tmpptr == '\\' || *tmpptr == '/') + { + lastslash = tmpptr; + } + } + if( lastslash != NULL ) + { + savefilenameinzip = lastslash+1; // base filename follows last slash. + } + } + + /**/ + err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi, + NULL,0,NULL,0,NULL /* comment*/, + (opt_compress_level != 0) ? Z_DEFLATED : 0, + opt_compress_level,0, + /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */ + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + password,crcFile, zip64); + + if (err != ZIP_OK) + printf("error in opening %s in zipfile\n",filenameinzip); + else + { + fin = fopen64(filenameinzip,"rb"); + if (fin==NULL) + { + err=ZIP_ERRNO; + printf("error in opening %s for reading\n",filenameinzip); + } + } + + if (err == ZIP_OK) + do + { + err = ZIP_OK; + size_read = (int)fread(buf,1,size_buf,fin); + if (size_read < size_buf) + if (feof(fin)==0) + { + printf("error in reading %s\n",filenameinzip); + err = ZIP_ERRNO; + } + + if (size_read>0) + { + err = zipWriteInFileInZip (zf,buf,size_read); + if (err<0) + { + printf("error in writing %s in the zipfile\n", + filenameinzip); + } + + } + } while ((err == ZIP_OK) && (size_read>0)); + + if (fin) + fclose(fin); + + if (err<0) + err=ZIP_ERRNO; + else + { + err = zipCloseFileInZip(zf); + if (err!=ZIP_OK) + printf("error in closing %s in the zipfile\n", + filenameinzip); + } + } + } + errclose = zipClose(zf,NULL); + if (errclose != ZIP_OK) + printf("error in closing %s\n",filename_try); + } + else + { + do_help(); + } + + free(buf); + return 0; +} diff --git a/3party/zlib/contrib/minizip/mztools.c b/3party/zlib/contrib/minizip/mztools.c new file mode 100644 index 0000000000..f9092e65ae --- /dev/null +++ b/3party/zlib/contrib/minizip/mztools.c @@ -0,0 +1,281 @@ +/* + Additional tools for Minizip + Code: Xavier Roche '2004 + License: Same as ZLIB (www.gzip.org) +*/ + +/* Code */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "zlib.h" +#include "unzip.h" + +#define READ_8(adr) ((unsigned char)*(adr)) +#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) ) +#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) ) + +#define WRITE_8(buff, n) do { \ + *((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \ +} while(0) +#define WRITE_16(buff, n) do { \ + WRITE_8((unsigned char*)(buff), n); \ + WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \ +} while(0) +#define WRITE_32(buff, n) do { \ + WRITE_16((unsigned char*)(buff), (n) & 0xffff); \ + WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \ +} while(0) + +extern int ZEXPORT unzRepair(file, fileOut, fileOutTmp, nRecovered, bytesRecovered) +const char* file; +const char* fileOut; +const char* fileOutTmp; +uLong* nRecovered; +uLong* bytesRecovered; +{ + int err = Z_OK; + FILE* fpZip = fopen(file, "rb"); + FILE* fpOut = fopen(fileOut, "wb"); + FILE* fpOutCD = fopen(fileOutTmp, "wb"); + if (fpZip != NULL && fpOut != NULL) { + int entries = 0; + uLong totalBytes = 0; + char header[30]; + char filename[256]; + char extra[1024]; + int offset = 0; + int offsetCD = 0; + while ( fread(header, 1, 30, fpZip) == 30 ) { + int currentOffset = offset; + + /* File entry */ + if (READ_32(header) == 0x04034b50) { + unsigned int version = READ_16(header + 4); + unsigned int gpflag = READ_16(header + 6); + unsigned int method = READ_16(header + 8); + unsigned int filetime = READ_16(header + 10); + unsigned int filedate = READ_16(header + 12); + unsigned int crc = READ_32(header + 14); /* crc */ + unsigned int cpsize = READ_32(header + 18); /* compressed size */ + unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */ + unsigned int fnsize = READ_16(header + 26); /* file name length */ + unsigned int extsize = READ_16(header + 28); /* extra field length */ + filename[0] = extra[0] = '\0'; + + /* Header */ + if (fwrite(header, 1, 30, fpOut) == 30) { + offset += 30; + } else { + err = Z_ERRNO; + break; + } + + /* Filename */ + if (fnsize > 0) { + if (fread(filename, 1, fnsize, fpZip) == fnsize) { + if (fwrite(filename, 1, fnsize, fpOut) == fnsize) { + offset += fnsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_STREAM_ERROR; + break; + } + + /* Extra field */ + if (extsize > 0) { + if (fread(extra, 1, extsize, fpZip) == extsize) { + if (fwrite(extra, 1, extsize, fpOut) == extsize) { + offset += extsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_ERRNO; + break; + } + } + + /* Data */ + { + int dataSize = cpsize; + if (dataSize == 0) { + dataSize = uncpsize; + } + if (dataSize > 0) { + char* data = malloc(dataSize); + if (data != NULL) { + if ((int)fread(data, 1, dataSize, fpZip) == dataSize) { + if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) { + offset += dataSize; + totalBytes += dataSize; + } else { + err = Z_ERRNO; + } + } else { + err = Z_ERRNO; + } + free(data); + if (err != Z_OK) { + break; + } + } else { + err = Z_MEM_ERROR; + break; + } + } + } + + /* Central directory entry */ + { + char header[46]; + char* comment = ""; + int comsize = (int) strlen(comment); + WRITE_32(header, 0x02014b50); + WRITE_16(header + 4, version); + WRITE_16(header + 6, version); + WRITE_16(header + 8, gpflag); + WRITE_16(header + 10, method); + WRITE_16(header + 12, filetime); + WRITE_16(header + 14, filedate); + WRITE_32(header + 16, crc); + WRITE_32(header + 20, cpsize); + WRITE_32(header + 24, uncpsize); + WRITE_16(header + 28, fnsize); + WRITE_16(header + 30, extsize); + WRITE_16(header + 32, comsize); + WRITE_16(header + 34, 0); /* disk # */ + WRITE_16(header + 36, 0); /* int attrb */ + WRITE_32(header + 38, 0); /* ext attrb */ + WRITE_32(header + 42, currentOffset); + /* Header */ + if (fwrite(header, 1, 46, fpOutCD) == 46) { + offsetCD += 46; + + /* Filename */ + if (fnsize > 0) { + if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) { + offsetCD += fnsize; + } else { + err = Z_ERRNO; + break; + } + } else { + err = Z_STREAM_ERROR; + break; + } + + /* Extra field */ + if (extsize > 0) { + if (fwrite(extra, 1, extsize, fpOutCD) == extsize) { + offsetCD += extsize; + } else { + err = Z_ERRNO; + break; + } + } + + /* Comment field */ + if (comsize > 0) { + if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) { + offsetCD += comsize; + } else { + err = Z_ERRNO; + break; + } + } + + + } else { + err = Z_ERRNO; + break; + } + } + + /* Success */ + entries++; + + } else { + break; + } + } + + /* Final central directory */ + { + int entriesZip = entries; + char header[22]; + char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools"; + int comsize = (int) strlen(comment); + if (entriesZip > 0xffff) { + entriesZip = 0xffff; + } + WRITE_32(header, 0x06054b50); + WRITE_16(header + 4, 0); /* disk # */ + WRITE_16(header + 6, 0); /* disk # */ + WRITE_16(header + 8, entriesZip); /* hack */ + WRITE_16(header + 10, entriesZip); /* hack */ + WRITE_32(header + 12, offsetCD); /* size of CD */ + WRITE_32(header + 16, offset); /* offset to CD */ + WRITE_16(header + 20, comsize); /* comment */ + + /* Header */ + if (fwrite(header, 1, 22, fpOutCD) == 22) { + + /* Comment field */ + if (comsize > 0) { + if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) { + err = Z_ERRNO; + } + } + + } else { + err = Z_ERRNO; + } + } + + /* Final merge (file + central directory) */ + fclose(fpOutCD); + if (err == Z_OK) { + fpOutCD = fopen(fileOutTmp, "rb"); + if (fpOutCD != NULL) { + int nRead; + char buffer[8192]; + while ( (nRead = (int)fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) { + if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) { + err = Z_ERRNO; + break; + } + } + fclose(fpOutCD); + } + } + + /* Close */ + fclose(fpZip); + fclose(fpOut); + + /* Wipe temporary file */ + (void)remove(fileOutTmp); + + /* Number of recovered entries */ + if (err == Z_OK) { + if (nRecovered != NULL) { + *nRecovered = entries; + } + if (bytesRecovered != NULL) { + *bytesRecovered = totalBytes; + } + } + } else { + err = Z_STREAM_ERROR; + } + return err; +} diff --git a/3party/zlib/contrib/minizip/mztools.h b/3party/zlib/contrib/minizip/mztools.h new file mode 100644 index 0000000000..88b34592bf --- /dev/null +++ b/3party/zlib/contrib/minizip/mztools.h @@ -0,0 +1,31 @@ +/* + Additional tools for Minizip + Code: Xavier Roche '2004 + License: Same as ZLIB (www.gzip.org) +*/ + +#ifndef _zip_tools_H +#define _zip_tools_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#include "unzip.h" + +/* Repair a ZIP file (missing central directory) + file: file to recover + fileOut: output file after recovery + fileOutTmp: temporary file name used for recovery +*/ +extern int ZEXPORT unzRepair(const char* file, + const char* fileOut, + const char* fileOutTmp, + uLong* nRecovered, + uLong* bytesRecovered); + +#endif diff --git a/3party/zlib/contrib/minizip/unzip.c b/3party/zlib/contrib/minizip/unzip.c new file mode 100644 index 0000000000..7617f41f1c --- /dev/null +++ b/3party/zlib/contrib/minizip/unzip.c @@ -0,0 +1,2125 @@ +/* unzip.c -- IO for uncompress .zip files using zlib + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + + ------------------------------------------------------------------------------------ + Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of + compatibility with older software. The following is from the original crypt.c. + Code woven in by Terry Thorsen 1/2003. + + Copyright (c) 1990-2000 Info-ZIP. All rights reserved. + + See the accompanying file LICENSE, version 2000-Apr-09 or later + (the contents of which are also included in zip.h) for terms of use. + If, for some reason, all these files are missing, the Info-ZIP license + also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html + + crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h] + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + ------------------------------------------------------------------------------------ + + Changes in unzip.c + + 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos + 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz* + 2007-2008 - Even Rouault - Remove old C style function prototypes + 2007-2008 - Even Rouault - Add unzip support for ZIP64 + + Copyright (C) 2007-2008 Even Rouault + + + Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again). + Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G + should only read the compressed/uncompressed size from the Zip64 format if + the size from normal header was 0xFFFFFFFF + Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant + Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required) + Patch created by Daniel Borca + + Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer + + Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson + +*/ + + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#ifndef NOUNCRYPT + #define NOUNCRYPT +#endif + +#include "zlib.h" +#include "unzip.h" + +#ifdef STDC +# include <stddef.h> +# include <string.h> +# include <stdlib.h> +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include <errno.h> +#endif + + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + + +#ifndef CASESENSITIVITYDEFAULT_NO +# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) +# define CASESENSITIVITYDEFAULT_NO +# endif +#endif + + +#ifndef UNZ_BUFSIZE +#define UNZ_BUFSIZE (16384) +#endif + +#ifndef UNZ_MAXFILENAMEINZIP +#define UNZ_MAXFILENAMEINZIP (256) +#endif + +#ifndef ALLOC +# define ALLOC(size) (malloc(size)) +#endif +#ifndef TRYFREE +# define TRYFREE(p) {if (p) free(p);} +#endif + +#define SIZECENTRALDIRITEM (0x2e) +#define SIZEZIPLOCALHEADER (0x1e) + + +const char unz_copyright[] = + " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; + +/* unz_file_info_interntal contain internal info about a file in zipfile*/ +typedef struct unz_file_info64_internal_s +{ + ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ +} unz_file_info64_internal; + + +/* file_in_zip_read_info_s contain internal information about a file in zipfile, + when reading and decompress it */ +typedef struct +{ + char *read_buffer; /* internal buffer for compressed data */ + z_stream stream; /* zLib stream structure for inflate */ + +#ifdef HAVE_BZIP2 + bz_stream bstream; /* bzLib stream structure for bziped */ +#endif + + ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ + uLong stream_initialised; /* flag set if stream structure is initialised*/ + + ZPOS64_T offset_local_extrafield;/* offset of the local extra field */ + uInt size_local_extrafield;/* size of the local extra field */ + ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/ + ZPOS64_T total_out_64; + + uLong crc32; /* crc32 of all data uncompressed */ + uLong crc32_wait; /* crc32 we must obtain after decompress all */ + ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ + ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ + zlib_filefunc64_32_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + uLong compression_method; /* compression method (0==store) */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + int raw; +} file_in_zip64_read_info_s; + + +/* unz64_s contain internal information about the zipfile +*/ +typedef struct +{ + zlib_filefunc64_32_def z_filefunc; + int is64bitOpenFunction; + voidpf filestream; /* io structore of the zipfile */ + unz_global_info64 gi; /* public global information */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + ZPOS64_T num_file; /* number of the current file in the zipfile*/ + ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/ + ZPOS64_T current_file_ok; /* flag about the usability of the current file*/ + ZPOS64_T central_pos; /* position of the beginning of the central dir*/ + + ZPOS64_T size_central_dir; /* size of the central directory */ + ZPOS64_T offset_central_dir; /* offset of start of central directory with + respect to the starting disk number */ + + unz_file_info64 cur_file_info; /* public info about the current file in zip*/ + unz_file_info64_internal cur_file_info_internal; /* private info about it*/ + file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current + file if we are decompressing it */ + int encrypted; + + int isZip64; + +# ifndef NOUNCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const unsigned long* pcrc_32_tab; +# endif +} unz64_s; + + +#ifndef NOUNCRYPT +#include "crypt.h" +#endif + +/* =========================================================================== + Read a byte from a gz_stream; update next_in and avail_in. Return EOF + for end of file. + IN assertion: the stream s has been sucessfully opened for reading. +*/ + + +local int unz64local_getByte OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + int *pi)); + +local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi) +{ + unsigned char c; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); + if (err==1) + { + *pi = (int)c; + return UNZ_OK; + } + else + { + if (ZERROR64(*pzlib_filefunc_def,filestream)) + return UNZ_ERRNO; + else + return UNZ_EOF; + } +} + + +/* =========================================================================== + Reads a long in LSB order from the given gz_stream. Sets +*/ +local int unz64local_getShort OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX) +{ + uLong x ; + int i = 0; + int err; + + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<8; + + if (err==UNZ_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int unz64local_getLong OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX) +{ + uLong x ; + int i = 0; + int err; + + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<8; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<16; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<24; + + if (err==UNZ_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int unz64local_getLong64 OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + ZPOS64_T *pX)); + + +local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + ZPOS64_T *pX) +{ + ZPOS64_T x ; + int i = 0; + int err; + + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (ZPOS64_T)i; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<8; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<16; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<24; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<32; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<40; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<48; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<56; + + if (err==UNZ_OK) + *pX = x; + else + *pX = 0; + return err; +} + +/* My own strcmpi / strcasecmp */ +local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2) +{ + for (;;) + { + char c1=*(fileName1++); + char c2=*(fileName2++); + if ((c1>='a') && (c1<='z')) + c1 -= 0x20; + if ((c2>='a') && (c2<='z')) + c2 -= 0x20; + if (c1=='\0') + return ((c2=='\0') ? 0 : -1); + if (c2=='\0') + return 1; + if (c1<c2) + return -1; + if (c1>c2) + return 1; + } +} + + +#ifdef CASESENSITIVITYDEFAULT_NO +#define CASESENSITIVITYDEFAULTVALUE 2 +#else +#define CASESENSITIVITYDEFAULTVALUE 1 +#endif + +#ifndef STRCMPCASENOSENTIVEFUNCTION +#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal +#endif + +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) + +*/ +extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, + const char* fileName2, + int iCaseSensitivity) + +{ + if (iCaseSensitivity==0) + iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; + + if (iCaseSensitivity==1) + return strcmp(fileName1,fileName2); + + return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); +} + +#ifndef BUFREADCOMMENT +#define BUFREADCOMMENT (0x400) +#endif + +/* + Locate the Central directory of a zipfile (at the end, just before + the global comment) +*/ +local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); +local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) +{ + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackRead<uMaxBack) + { + uLong uReadSize; + ZPOS64_T uReadPos ; + int i; + if (uBackRead+BUFREADCOMMENT>uMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) + { + uPosFound = uReadPos+i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + return uPosFound; +} + + +/* + Locate the Central directory 64 of a zipfile (at the end, just before + the global comment) +*/ +local ZPOS64_T unz64local_SearchCentralDir64 OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream)); + +local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream) +{ + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + uLong uL; + ZPOS64_T relativeOffset; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackRead<uMaxBack) + { + uLong uReadSize; + ZPOS64_T uReadPos; + int i; + if (uBackRead+BUFREADCOMMENT>uMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) + { + uPosFound = uReadPos+i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + if (uPosFound == 0) + return 0; + + /* Zip64 end of central directory locator */ + if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) + return 0; + + /* the signature, already checked */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) + return 0; + + /* number of the disk with the start of the zip64 end of central directory */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) + return 0; + if (uL != 0) + return 0; + + /* relative offset of the zip64 end of central directory record */ + if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK) + return 0; + + /* total number of disks */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) + return 0; + if (uL != 1) + return 0; + + /* Goto end of central directory record */ + if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) + return 0; + + /* the signature */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) + return 0; + + if (uL != 0x06064b50) + return 0; + + return relativeOffset; +} + +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer + "zlib/zlib114.zip". + If the zipfile cannot be opened (file doesn't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. +*/ +local unzFile unzOpenInternal (const void *path, + zlib_filefunc64_32_def* pzlib_filefunc64_32_def, + int is64bitOpenFunction) +{ + unz64_s us; + unz64_s *s; + ZPOS64_T central_pos; + uLong uL; + + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + ZPOS64_T number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + + int err=UNZ_OK; + + if (unz_copyright[0]!=' ') + return NULL; + + us.z_filefunc.zseek32_file = NULL; + us.z_filefunc.ztell32_file = NULL; + if (pzlib_filefunc64_32_def==NULL) + fill_fopen64_filefunc(&us.z_filefunc.zfile_func64); + else + us.z_filefunc = *pzlib_filefunc64_32_def; + us.is64bitOpenFunction = is64bitOpenFunction; + + + + us.filestream = ZOPEN64(us.z_filefunc, + path, + ZLIB_FILEFUNC_MODE_READ | + ZLIB_FILEFUNC_MODE_EXISTING); + if (us.filestream==NULL) + return NULL; + + central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream); + if (central_pos) + { + uLong uS; + ZPOS64_T uL64; + + us.isZip64 = 1; + + if (ZSEEK64(us.z_filefunc, us.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + + /* size of zip64 end of central directory record */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK) + err=UNZ_ERRNO; + + /* version made by */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) + err=UNZ_ERRNO; + + /* version needed to extract */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central directory on this disk */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + if ((number_entry_CD!=us.gi.number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + us.gi.size_comment = 0; + } + else + { + central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream); + if (central_pos==0) + err=UNZ_ERRNO; + + us.isZip64 = 0; + + if (ZSEEK64(us.z_filefunc, us.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central dir on this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.gi.number_entry = uL; + + /* total number of entries in the central dir */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + number_entry_CD = uL; + + if ((number_entry_CD!=us.gi.number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.size_central_dir = uL; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.offset_central_dir = uL; + + /* zipfile comment length */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK) + err=UNZ_ERRNO; + } + + if ((central_pos<us.offset_central_dir+us.size_central_dir) && + (err==UNZ_OK)) + err=UNZ_BADZIPFILE; + + if (err!=UNZ_OK) + { + ZCLOSE64(us.z_filefunc, us.filestream); + return NULL; + } + + us.byte_before_the_zipfile = central_pos - + (us.offset_central_dir+us.size_central_dir); + us.central_pos = central_pos; + us.pfile_in_zip_read = NULL; + us.encrypted = 0; + + + s=(unz64_s*)ALLOC(sizeof(unz64_s)); + if( s != NULL) + { + *s=us; + unzGoToFirstFile((unzFile)s); + } + return (unzFile)s; +} + + +extern unzFile ZEXPORT unzOpen2 (const char *path, + zlib_filefunc_def* pzlib_filefunc32_def) +{ + if (pzlib_filefunc32_def != NULL) + { + zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; + fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); + return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0); + } + else + return unzOpenInternal(path, NULL, 0); +} + +extern unzFile ZEXPORT unzOpen2_64 (const void *path, + zlib_filefunc64_def* pzlib_filefunc_def) +{ + if (pzlib_filefunc_def != NULL) + { + zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; + zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; + zlib_filefunc64_32_def_fill.ztell32_file = NULL; + zlib_filefunc64_32_def_fill.zseek32_file = NULL; + return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1); + } + else + return unzOpenInternal(path, NULL, 1); +} + +extern unzFile ZEXPORT unzOpen (const char *path) +{ + return unzOpenInternal(path, NULL, 0); +} + +extern unzFile ZEXPORT unzOpen64 (const void *path) +{ + return unzOpenInternal(path, NULL, 1); +} + +/* + Close a ZipFile opened with unzipOpen. + If there is files inside the .Zip opened with unzipOpenCurrentFile (see later), + these files MUST be closed with unzipCloseCurrentFile before call unzipClose. + return UNZ_OK if there is no problem. */ +extern int ZEXPORT unzClose (unzFile file) +{ + unz64_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + + if (s->pfile_in_zip_read!=NULL) + unzCloseCurrentFile(file); + + ZCLOSE64(s->z_filefunc, s->filestream); + TRYFREE(s); + return UNZ_OK; +} + + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ +extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info) +{ + unz64_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + *pglobal_info=s->gi; + return UNZ_OK; +} + +extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32) +{ + unz64_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + /* to do : check if number_entry is not truncated */ + pglobal_info32->number_entry = (uLong)s->gi.number_entry; + pglobal_info32->size_comment = s->gi.size_comment; + return UNZ_OK; +} +/* + Translate date/time from Dos format to tm_unz (readable more easilty) +*/ +local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm) +{ + ZPOS64_T uDate; + uDate = (ZPOS64_T)(ulDosDate>>16); + ptm->tm_mday = (uInt)(uDate&0x1f) ; + ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ; + ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ; + + ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800); + ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ; + ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ; +} + +/* + Get Info about the current file in the zipfile, with internal only info +*/ +local int unz64local_GetCurrentFileInfoInternal OF((unzFile file, + unz_file_info64 *pfile_info, + unz_file_info64_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); + +local int unz64local_GetCurrentFileInfoInternal (unzFile file, + unz_file_info64 *pfile_info, + unz_file_info64_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize) +{ + unz64_s* s; + unz_file_info64 file_info; + unz_file_info64_internal file_info_internal; + int err=UNZ_OK; + uLong uMagic; + long lSeek=0; + uLong uL; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (ZSEEK64(s->z_filefunc, s->filestream, + s->pos_in_central_dir+s->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + + /* we check the magic */ + if (err==UNZ_OK) + { + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x02014b50) + err=UNZ_BADZIPFILE; + } + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK) + err=UNZ_ERRNO; + + unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date); + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info.compressed_size = uL; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info.uncompressed_size = uL; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK) + err=UNZ_ERRNO; + + // relative offset of local header + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info_internal.offset_curfile = uL; + + lSeek+=file_info.size_filename; + if ((err==UNZ_OK) && (szFileName!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_filename<fileNameBufferSize) + { + *(szFileName+file_info.size_filename)='\0'; + uSizeRead = file_info.size_filename; + } + else + uSizeRead = fileNameBufferSize; + + if ((file_info.size_filename>0) && (fileNameBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek -= uSizeRead; + } + + // Read extrafield + if ((err==UNZ_OK) && (extraField!=NULL)) + { + ZPOS64_T uSizeRead ; + if (file_info.size_file_extra<extraFieldBufferSize) + uSizeRead = file_info.size_file_extra; + else + uSizeRead = extraFieldBufferSize; + + if (lSeek!=0) + { + if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + } + + if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + + lSeek += file_info.size_file_extra - (uLong)uSizeRead; + } + else + lSeek += file_info.size_file_extra; + + + if ((err==UNZ_OK) && (file_info.size_file_extra != 0)) + { + uLong acc = 0; + + // since lSeek now points to after the extra field we need to move back + lSeek -= file_info.size_file_extra; + + if (lSeek!=0) + { + if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + } + + while(acc < file_info.size_file_extra) + { + uLong headerId; + uLong dataSize; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK) + err=UNZ_ERRNO; + + /* ZIP64 extra fields */ + if (headerId == 0x0001) + { + uLong uL; + + if(file_info.uncompressed_size == (ZPOS64_T)(unsigned long)-1) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.compressed_size == (ZPOS64_T)(unsigned long)-1) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info_internal.offset_curfile == (ZPOS64_T)(unsigned long)-1) + { + /* Relative Header offset */ + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.disk_num_start == (unsigned long)-1) + { + /* Disk Start Number */ + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + } + + } + else + { + if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0) + err=UNZ_ERRNO; + } + + acc += 2 + 2 + dataSize; + } + } + + if ((err==UNZ_OK) && (szComment!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_file_comment<commentBufferSize) + { + *(szComment+file_info.size_file_comment)='\0'; + uSizeRead = file_info.size_file_comment; + } + else + uSizeRead = commentBufferSize; + + if (lSeek!=0) + { + if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + } + + if ((file_info.size_file_comment>0) && (commentBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek+=file_info.size_file_comment - uSizeRead; + } + else + lSeek+=file_info.size_file_comment; + + + if ((err==UNZ_OK) && (pfile_info!=NULL)) + *pfile_info=file_info; + + if ((err==UNZ_OK) && (pfile_info_internal!=NULL)) + *pfile_info_internal=file_info_internal; + + return err; +} + + + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. +*/ +extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file, + unz_file_info64 * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) +{ + return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL, + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); +} + +extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, + unz_file_info * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) +{ + int err; + unz_file_info64 file_info64; + err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL, + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); + if (err==UNZ_OK) + { + pfile_info->version = file_info64.version; + pfile_info->version_needed = file_info64.version_needed; + pfile_info->flag = file_info64.flag; + pfile_info->compression_method = file_info64.compression_method; + pfile_info->dosDate = file_info64.dosDate; + pfile_info->crc = file_info64.crc; + + pfile_info->size_filename = file_info64.size_filename; + pfile_info->size_file_extra = file_info64.size_file_extra; + pfile_info->size_file_comment = file_info64.size_file_comment; + + pfile_info->disk_num_start = file_info64.disk_num_start; + pfile_info->internal_fa = file_info64.internal_fa; + pfile_info->external_fa = file_info64.external_fa; + + pfile_info->tmu_date = file_info64.tmu_date, + + + pfile_info->compressed_size = (uLong)file_info64.compressed_size; + pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size; + + } + return err; +} +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ +extern int ZEXPORT unzGoToFirstFile (unzFile file) +{ + int err=UNZ_OK; + unz64_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + s->pos_in_central_dir=s->offset_central_dir; + s->num_file=0; + err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ +extern int ZEXPORT unzGoToNextFile (unzFile file) +{ + unz64_s* s; + int err; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ + if (s->num_file+1==s->gi.number_entry) + return UNZ_END_OF_LIST_OF_FILE; + + s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + + s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; + s->num_file++; + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + + +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzipStringFileNameCompare + + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ +extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity) +{ + unz64_s* s; + int err; + + /* We remember the 'current' position in the file so that we can jump + * back there if we fail. + */ + unz_file_info64 cur_file_infoSaved; + unz_file_info64_internal cur_file_info_internalSaved; + ZPOS64_T num_fileSaved; + ZPOS64_T pos_in_central_dirSaved; + + + if (file==NULL) + return UNZ_PARAMERROR; + + if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) + return UNZ_PARAMERROR; + + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + /* Save the current state */ + num_fileSaved = s->num_file; + pos_in_central_dirSaved = s->pos_in_central_dir; + cur_file_infoSaved = s->cur_file_info; + cur_file_info_internalSaved = s->cur_file_info_internal; + + err = unzGoToFirstFile(file); + + while (err == UNZ_OK) + { + char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; + err = unzGetCurrentFileInfo64(file,NULL, + szCurrentFileName,sizeof(szCurrentFileName)-1, + NULL,0,NULL,0); + if (err == UNZ_OK) + { + if (unzStringFileNameCompare(szCurrentFileName, + szFileName,iCaseSensitivity)==0) + return UNZ_OK; + err = unzGoToNextFile(file); + } + } + + /* We failed, so restore the state of the 'current file' to where we + * were. + */ + s->num_file = num_fileSaved ; + s->pos_in_central_dir = pos_in_central_dirSaved ; + s->cur_file_info = cur_file_infoSaved; + s->cur_file_info_internal = cur_file_info_internalSaved; + return err; +} + + +/* +/////////////////////////////////////////// +// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net) +// I need random access +// +// Further optimization could be realized by adding an ability +// to cache the directory in memory. The goal being a single +// comprehensive file read to put the file I need in a memory. +*/ + +/* +typedef struct unz_file_pos_s +{ + ZPOS64_T pos_in_zip_directory; // offset in file + ZPOS64_T num_of_file; // # of file +} unz_file_pos; +*/ + +extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) +{ + unz64_s* s; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + file_pos->pos_in_zip_directory = s->pos_in_central_dir; + file_pos->num_of_file = s->num_file; + + return UNZ_OK; +} + +extern int ZEXPORT unzGetFilePos( + unzFile file, + unz_file_pos* file_pos) +{ + unz64_file_pos file_pos64; + int err = unzGetFilePos64(file,&file_pos64); + if (err==UNZ_OK) + { + file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory; + file_pos->num_of_file = (uLong)file_pos64.num_of_file; + } + return err; +} + +extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) +{ + unz64_s* s; + int err; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + + /* jump to the right spot */ + s->pos_in_central_dir = file_pos->pos_in_zip_directory; + s->num_file = file_pos->num_of_file; + + /* set the current file */ + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + /* return results */ + s->current_file_ok = (err == UNZ_OK); + return err; +} + +extern int ZEXPORT unzGoToFilePos( + unzFile file, + unz_file_pos* file_pos) +{ + unz64_file_pos file_pos64; + if (file_pos == NULL) + return UNZ_PARAMERROR; + + file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory; + file_pos64.num_of_file = file_pos->num_of_file; + return unzGoToFilePos64(file,&file_pos64); +} + +/* +// Unzip Helper Functions - should be here? +/////////////////////////////////////////// +*/ + +/* + Read the local header of the current zipfile + Check the coherency of the local header and info in the end of central + directory about this file + store in *piSizeVar the size of extra info in local header + (filename and size of extra field data) +*/ +local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar, + ZPOS64_T * poffset_local_extrafield, + uInt * psize_local_extrafield) +{ + uLong uMagic,uData,uFlags; + uLong size_filename; + uLong size_extra_field; + int err=UNZ_OK; + + *piSizeVar = 0; + *poffset_local_extrafield = 0; + *psize_local_extrafield = 0; + + if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile + + s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + + if (err==UNZ_OK) + { + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x04034b50) + err=UNZ_BADZIPFILE; + } + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; +/* + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) + err=UNZ_BADZIPFILE; +*/ + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method)) + err=UNZ_BADZIPFILE; + + if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) && +/* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method!=Z_BZIP2ED) && +/* #endif */ + (s->cur_file_info.compression_method!=Z_DEFLATED)) + err=UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */ + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */ + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */ + err=UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */ + err=UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) + err=UNZ_BADZIPFILE; + + *piSizeVar += (uInt)size_filename; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK) + err=UNZ_ERRNO; + *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + + SIZEZIPLOCALHEADER + size_filename; + *psize_local_extrafield = (uInt)size_extra_field; + + *piSizeVar += (uInt)size_extra_field; + + return err; +} + +/* + Open for reading data the current file in the zipfile. + If there is no error and the file is opened, the return value is UNZ_OK. +*/ +extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, + int* level, int raw, const char* password) +{ + int err=UNZ_OK; + uInt iSizeVar; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + ZPOS64_T offset_local_extrafield; /* offset of the local extra field */ + uInt size_local_extrafield; /* size of the local extra field */ +# ifndef NOUNCRYPT + char source[12]; +# else + if (password != NULL) + return UNZ_PARAMERROR; +# endif + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_PARAMERROR; + + if (s->pfile_in_zip_read != NULL) + unzCloseCurrentFile(file); + + if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK) + return UNZ_BADZIPFILE; + + pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s)); + if (pfile_in_zip_read_info==NULL) + return UNZ_INTERNALERROR; + + pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE); + pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield; + pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield; + pfile_in_zip_read_info->pos_local_extrafield=0; + pfile_in_zip_read_info->raw=raw; + + if (pfile_in_zip_read_info->read_buffer==NULL) + { + TRYFREE(pfile_in_zip_read_info); + return UNZ_INTERNALERROR; + } + + pfile_in_zip_read_info->stream_initialised=0; + + if (method!=NULL) + *method = (int)s->cur_file_info.compression_method; + + if (level!=NULL) + { + *level = 6; + switch (s->cur_file_info.flag & 0x06) + { + case 6 : *level = 1; break; + case 4 : *level = 2; break; + case 2 : *level = 9; break; + } + } + + if ((s->cur_file_info.compression_method!=0) && +/* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method!=Z_BZIP2ED) && +/* #endif */ + (s->cur_file_info.compression_method!=Z_DEFLATED)) + + err=UNZ_BADZIPFILE; + + pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; + pfile_in_zip_read_info->crc32=0; + pfile_in_zip_read_info->total_out_64=0; + pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method; + pfile_in_zip_read_info->filestream=s->filestream; + pfile_in_zip_read_info->z_filefunc=s->z_filefunc; + pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; + + pfile_in_zip_read_info->stream.total_out = 0; + + if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw)) + { +#ifdef HAVE_BZIP2 + pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0; + pfile_in_zip_read_info->bstream.bzfree = (free_func)0; + pfile_in_zip_read_info->bstream.opaque = (voidpf)0; + pfile_in_zip_read_info->bstream.state = (voidpf)0; + + pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; + pfile_in_zip_read_info->stream.zfree = (free_func)0; + pfile_in_zip_read_info->stream.opaque = (voidpf)0; + pfile_in_zip_read_info->stream.next_in = (voidpf)0; + pfile_in_zip_read_info->stream.avail_in = 0; + + err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0); + if (err == Z_OK) + pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED; + else + { + TRYFREE(pfile_in_zip_read_info); + return err; + } +#else + pfile_in_zip_read_info->raw=1; +#endif + } + else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw)) + { + pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; + pfile_in_zip_read_info->stream.zfree = (free_func)0; + pfile_in_zip_read_info->stream.opaque = (voidpf)0; + pfile_in_zip_read_info->stream.next_in = 0; + pfile_in_zip_read_info->stream.avail_in = 0; + + err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); + if (err == Z_OK) + pfile_in_zip_read_info->stream_initialised=Z_DEFLATED; + else + { + TRYFREE(pfile_in_zip_read_info); + return err; + } + /* windowBits is passed < 0 to tell that there is no zlib header. + * Note that in this case inflate *requires* an extra "dummy" byte + * after the compressed stream in order to complete decompression and + * return Z_STREAM_END. + * In unzip, i don't wait absolutely Z_STREAM_END because I known the + * size of both compressed and uncompressed data + */ + } + pfile_in_zip_read_info->rest_read_compressed = + s->cur_file_info.compressed_size ; + pfile_in_zip_read_info->rest_read_uncompressed = + s->cur_file_info.uncompressed_size ; + + + pfile_in_zip_read_info->pos_in_zipfile = + s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + + iSizeVar; + + pfile_in_zip_read_info->stream.avail_in = (uInt)0; + + s->pfile_in_zip_read = pfile_in_zip_read_info; + s->encrypted = 0; + +# ifndef NOUNCRYPT + if (password != NULL) + { + int i; + s->pcrc_32_tab = get_crc_table(); + init_keys(password,s->keys,s->pcrc_32_tab); + if (ZSEEK64(s->z_filefunc, s->filestream, + s->pfile_in_zip_read->pos_in_zipfile + + s->pfile_in_zip_read->byte_before_the_zipfile, + SEEK_SET)!=0) + return UNZ_INTERNALERROR; + if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12) + return UNZ_INTERNALERROR; + + for (i = 0; i<12; i++) + zdecode(s->keys,s->pcrc_32_tab,source[i]); + + s->pfile_in_zip_read->pos_in_zipfile+=12; + s->encrypted=1; + } +# endif + + + return UNZ_OK; +} + +extern int ZEXPORT unzOpenCurrentFile (unzFile file) +{ + return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); +} + +extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password) +{ + return unzOpenCurrentFile3(file, NULL, NULL, 0, password); +} + +extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw) +{ + return unzOpenCurrentFile3(file, method, level, raw, NULL); +} + +/** Addition for GDAL : START */ + +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + s=(unz64_s*)file; + if (file==NULL) + return 0; //UNZ_PARAMERROR; + pfile_in_zip_read_info=s->pfile_in_zip_read; + if (pfile_in_zip_read_info==NULL) + return 0; //UNZ_PARAMERROR; + return pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile; +} + +/** Addition for GDAL : END */ + +/* + Read bytes from the current file. + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ +extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) +{ + int err=UNZ_OK; + uInt iRead = 0; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + + if ((pfile_in_zip_read_info->read_buffer == NULL)) + return UNZ_END_OF_LIST_OF_FILE; + if (len==0) + return 0; + + pfile_in_zip_read_info->stream.next_out = (Bytef*)buf; + + pfile_in_zip_read_info->stream.avail_out = (uInt)len; + + if ((len>pfile_in_zip_read_info->rest_read_uncompressed) && + (!(pfile_in_zip_read_info->raw))) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_uncompressed; + + if ((len>pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in) && + (pfile_in_zip_read_info->raw)) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in; + + while (pfile_in_zip_read_info->stream.avail_out>0) + { + if ((pfile_in_zip_read_info->stream.avail_in==0) && + (pfile_in_zip_read_info->rest_read_compressed>0)) + { + uInt uReadThis = UNZ_BUFSIZE; + if (pfile_in_zip_read_info->rest_read_compressed<uReadThis) + uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed; + if (uReadThis == 0) + return UNZ_EOF; + if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + if (ZREAD64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->read_buffer, + uReadThis)!=uReadThis) + return UNZ_ERRNO; + + +# ifndef NOUNCRYPT + if(s->encrypted) + { + uInt i; + for(i=0;i<uReadThis;i++) + pfile_in_zip_read_info->read_buffer[i] = + zdecode(s->keys,s->pcrc_32_tab, + pfile_in_zip_read_info->read_buffer[i]); + } +# endif + + + pfile_in_zip_read_info->pos_in_zipfile += uReadThis; + + pfile_in_zip_read_info->rest_read_compressed-=uReadThis; + + pfile_in_zip_read_info->stream.next_in = + (Bytef*)pfile_in_zip_read_info->read_buffer; + pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis; + } + + if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw)) + { + uInt uDoCopy,i ; + + if ((pfile_in_zip_read_info->stream.avail_in == 0) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + return (iRead==0) ? UNZ_EOF : iRead; + + if (pfile_in_zip_read_info->stream.avail_out < + pfile_in_zip_read_info->stream.avail_in) + uDoCopy = pfile_in_zip_read_info->stream.avail_out ; + else + uDoCopy = pfile_in_zip_read_info->stream.avail_in ; + + for (i=0;i<uDoCopy;i++) + *(pfile_in_zip_read_info->stream.next_out+i) = + *(pfile_in_zip_read_info->stream.next_in+i); + + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy; + + pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32, + pfile_in_zip_read_info->stream.next_out, + uDoCopy); + pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy; + pfile_in_zip_read_info->stream.avail_in -= uDoCopy; + pfile_in_zip_read_info->stream.avail_out -= uDoCopy; + pfile_in_zip_read_info->stream.next_out += uDoCopy; + pfile_in_zip_read_info->stream.next_in += uDoCopy; + pfile_in_zip_read_info->stream.total_out += uDoCopy; + iRead += uDoCopy; + } + else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED) + { +#ifdef HAVE_BZIP2 + uLong uTotalOutBefore,uTotalOutAfter; + const Bytef *bufBefore; + uLong uOutThis; + + pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in; + pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in; + pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in; + pfile_in_zip_read_info->bstream.total_in_hi32 = 0; + pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out; + pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out; + pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out; + pfile_in_zip_read_info->bstream.total_out_hi32 = 0; + + uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32; + bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out; + + err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream); + + uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32; + uOutThis = uTotalOutAfter-uTotalOutBefore; + + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; + + pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis)); + pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis; + iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); + + pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in; + pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in; + pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32; + pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out; + pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out; + pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32; + + if (err==BZ_STREAM_END) + return (iRead==0) ? UNZ_EOF : iRead; + if (err!=BZ_OK) + break; +#endif + } // end Z_BZIP2ED + else + { + ZPOS64_T uTotalOutBefore,uTotalOutAfter; + const Bytef *bufBefore; + ZPOS64_T uOutThis; + int flush=Z_SYNC_FLUSH; + + uTotalOutBefore = pfile_in_zip_read_info->stream.total_out; + bufBefore = pfile_in_zip_read_info->stream.next_out; + + /* + if ((pfile_in_zip_read_info->rest_read_uncompressed == + pfile_in_zip_read_info->stream.avail_out) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + flush = Z_FINISH; + */ + err=inflate(&pfile_in_zip_read_info->stream,flush); + + if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL)) + err = Z_DATA_ERROR; + + uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; + uOutThis = uTotalOutAfter-uTotalOutBefore; + + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; + + pfile_in_zip_read_info->crc32 = + crc32(pfile_in_zip_read_info->crc32,bufBefore, + (uInt)(uOutThis)); + + pfile_in_zip_read_info->rest_read_uncompressed -= + uOutThis; + + iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); + + if (err==Z_STREAM_END) + return (iRead==0) ? UNZ_EOF : iRead; + if (err!=Z_OK) + break; + } + } + + if (err==Z_OK) + return iRead; + return err; +} + + +/* + Give the current position in uncompressed data +*/ +extern z_off_t ZEXPORT unztell (unzFile file) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + return (z_off_t)pfile_in_zip_read_info->stream.total_out; +} + +extern ZPOS64_T ZEXPORT unztell64 (unzFile file) +{ + + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return (ZPOS64_T)-1; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return (ZPOS64_T)-1; + + return pfile_in_zip_read_info->total_out_64; +} + + +/* + return 1 if the end of file was reached, 0 elsewhere +*/ +extern int ZEXPORT unzeof (unzFile file) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + if (pfile_in_zip_read_info->rest_read_uncompressed == 0) + return 1; + else + return 0; +} + + + +/* +Read extra field from the current file (opened by unzOpenCurrentFile) +This is the local-header version of the extra field (sometimes, there is +more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field that can be read + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ +extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + uInt read_now; + ZPOS64_T size_to_read; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + size_to_read = (pfile_in_zip_read_info->size_local_extrafield - + pfile_in_zip_read_info->pos_local_extrafield); + + if (buf==NULL) + return (int)size_to_read; + + if (len>size_to_read) + read_now = (uInt)size_to_read; + else + read_now = (uInt)len ; + + if (read_now==0) + return 0; + + if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->offset_local_extrafield + + pfile_in_zip_read_info->pos_local_extrafield, + ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + if (ZREAD64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + buf,read_now)!=read_now) + return UNZ_ERRNO; + + return (int)read_now; +} + +/* + Close the file in zip opened with unzipOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ +extern int ZEXPORT unzCloseCurrentFile (unzFile file) +{ + int err=UNZ_OK; + + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + + if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) && + (!pfile_in_zip_read_info->raw)) + { + if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) + err=UNZ_CRCERROR; + } + + + TRYFREE(pfile_in_zip_read_info->read_buffer); + pfile_in_zip_read_info->read_buffer = NULL; + if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED) + inflateEnd(&pfile_in_zip_read_info->stream); +#ifdef HAVE_BZIP2 + else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED) + BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream); +#endif + + + pfile_in_zip_read_info->stream_initialised = 0; + TRYFREE(pfile_in_zip_read_info); + + s->pfile_in_zip_read=NULL; + + return err; +} + + +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ +extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf) +{ + unz64_s* s; + uLong uReadThis ; + if (file==NULL) + return (int)UNZ_PARAMERROR; + s=(unz64_s*)file; + + uReadThis = uSizeBuf; + if (uReadThis>s->gi.size_comment) + uReadThis = s->gi.size_comment; + + if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + + if (uReadThis>0) + { + *szComment='\0'; + if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis) + return UNZ_ERRNO; + } + + if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment)) + *(szComment+s->gi.size_comment)='\0'; + return (int)uReadThis; +} + +/* Additions by RX '2004 */ +extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) +{ + unz64_s* s; + + if (file==NULL) + return 0; //UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return 0; + if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff) + if (s->num_file==s->gi.number_entry) + return 0; + return s->pos_in_central_dir; +} + +extern uLong ZEXPORT unzGetOffset (unzFile file) +{ + ZPOS64_T offset64; + + if (file==NULL) + return 0; //UNZ_PARAMERROR; + offset64 = unzGetOffset64(file); + return (uLong)offset64; +} + +extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) +{ + unz64_s* s; + int err; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + + s->pos_in_central_dir = pos; + s->num_file = s->gi.number_entry; /* hack */ + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) +{ + return unzSetOffset64(file,pos); +} diff --git a/3party/zlib/contrib/minizip/unzip.h b/3party/zlib/contrib/minizip/unzip.h new file mode 100644 index 0000000000..3183968b77 --- /dev/null +++ b/3party/zlib/contrib/minizip/unzip.h @@ -0,0 +1,437 @@ +/* unzip.h -- IO for uncompress .zip files using zlib + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + --------------------------------------------------------------------------------- + + Condition of use and distribution are the same than zlib : + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + --------------------------------------------------------------------------------- + + Changes + + See header of unzip64.c + +*/ + +#ifndef _unz64_H +#define _unz64_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#ifndef _ZLIBIOAPI_H +#include "ioapi.h" +#endif + +#ifdef HAVE_BZIP2 +#include "bzlib.h" +#endif + +#define Z_BZIP2ED 12 + +#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) +/* like the STRICT of WIN32, we define a pointer that cannot be converted + from (void*) without cast */ +typedef struct TagunzFile__ { int unused; } unzFile__; +typedef unzFile__ *unzFile; +#else +typedef voidp unzFile; +#endif + + +#define UNZ_OK (0) +#define UNZ_END_OF_LIST_OF_FILE (-100) +#define UNZ_ERRNO (Z_ERRNO) +#define UNZ_EOF (0) +#define UNZ_PARAMERROR (-102) +#define UNZ_BADZIPFILE (-103) +#define UNZ_INTERNALERROR (-104) +#define UNZ_CRCERROR (-105) + +/* tm_unz contain date/time info */ +typedef struct tm_unz_s +{ + uInt tm_sec; /* seconds after the minute - [0,59] */ + uInt tm_min; /* minutes after the hour - [0,59] */ + uInt tm_hour; /* hours since midnight - [0,23] */ + uInt tm_mday; /* day of the month - [1,31] */ + uInt tm_mon; /* months since January - [0,11] */ + uInt tm_year; /* years - [1980..2044] */ +} tm_unz; + +/* unz_global_info structure contain global data about the ZIPfile + These data comes from the end of central dir */ +typedef struct unz_global_info64_s +{ + ZPOS64_T number_entry; /* total number of entries in + the central dir on this disk */ + uLong size_comment; /* size of the global comment of the zipfile */ +} unz_global_info64; + +typedef struct unz_global_info_s +{ + uLong number_entry; /* total number of entries in + the central dir on this disk */ + uLong size_comment; /* size of the global comment of the zipfile */ +} unz_global_info; + +/* unz_file_info contain information about a file in the zipfile */ +typedef struct unz_file_info64_s +{ + uLong version; /* version made by 2 bytes */ + uLong version_needed; /* version needed to extract 2 bytes */ + uLong flag; /* general purpose bit flag 2 bytes */ + uLong compression_method; /* compression method 2 bytes */ + uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ + uLong crc; /* crc-32 4 bytes */ + ZPOS64_T compressed_size; /* compressed size 8 bytes */ + ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */ + uLong size_filename; /* filename length 2 bytes */ + uLong size_file_extra; /* extra field length 2 bytes */ + uLong size_file_comment; /* file comment length 2 bytes */ + + uLong disk_num_start; /* disk number start 2 bytes */ + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ + + tm_unz tmu_date; +} unz_file_info64; + +typedef struct unz_file_info_s +{ + uLong version; /* version made by 2 bytes */ + uLong version_needed; /* version needed to extract 2 bytes */ + uLong flag; /* general purpose bit flag 2 bytes */ + uLong compression_method; /* compression method 2 bytes */ + uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ + uLong crc; /* crc-32 4 bytes */ + uLong compressed_size; /* compressed size 4 bytes */ + uLong uncompressed_size; /* uncompressed size 4 bytes */ + uLong size_filename; /* filename length 2 bytes */ + uLong size_file_extra; /* extra field length 2 bytes */ + uLong size_file_comment; /* file comment length 2 bytes */ + + uLong disk_num_start; /* disk number start 2 bytes */ + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ + + tm_unz tmu_date; +} unz_file_info; + +extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, + const char* fileName2, + int iCaseSensitivity)); +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) +*/ + + +extern unzFile ZEXPORT unzOpen OF((const char *path)); +extern unzFile ZEXPORT unzOpen64 OF((const void *path)); +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer + "zlib/zlib113.zip". + If the zipfile cannot be opened (file don't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. + the "64" function take a const void* pointer, because the path is just the + value passed to the open64_file_func callback. + Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path + is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char* + does not describe the reality +*/ + + +extern unzFile ZEXPORT unzOpen2 OF((const char *path, + zlib_filefunc_def* pzlib_filefunc_def)); +/* + Open a Zip file, like unzOpen, but provide a set of file low level API + for read/write the zip file (see ioapi.h) +*/ + +extern unzFile ZEXPORT unzOpen2_64 OF((const void *path, + zlib_filefunc64_def* pzlib_filefunc_def)); +/* + Open a Zip file, like unz64Open, but provide a set of file low level API + for read/write the zip file (see ioapi.h) +*/ + +extern int ZEXPORT unzClose OF((unzFile file)); +/* + Close a ZipFile opened with unzipOpen. + If there is files inside the .Zip opened with unzOpenCurrentFile (see later), + these files MUST be closed with unzipCloseCurrentFile before call unzipClose. + return UNZ_OK if there is no problem. */ + +extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, + unz_global_info *pglobal_info)); + +extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file, + unz_global_info64 *pglobal_info)); +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ + + +extern int ZEXPORT unzGetGlobalComment OF((unzFile file, + char *szComment, + uLong uSizeBuf)); +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ + + +/***************************************************************************/ +/* Unzip package allow you browse the directory of the zipfile */ + +extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ + +extern int ZEXPORT unzGoToNextFile OF((unzFile file)); +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ + +extern int ZEXPORT unzLocateFile OF((unzFile file, + const char *szFileName, + int iCaseSensitivity)); +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzStringFileNameCompare + + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ + + +/* ****************************************** */ +/* Ryan supplied functions */ +/* unz_file_info contain information about a file in the zipfile */ +typedef struct unz_file_pos_s +{ + uLong pos_in_zip_directory; /* offset in zip file directory */ + uLong num_of_file; /* # of file */ +} unz_file_pos; + +extern int ZEXPORT unzGetFilePos( + unzFile file, + unz_file_pos* file_pos); + +extern int ZEXPORT unzGoToFilePos( + unzFile file, + unz_file_pos* file_pos); + +typedef struct unz64_file_pos_s +{ + ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */ + ZPOS64_T num_of_file; /* # of file */ +} unz64_file_pos; + +extern int ZEXPORT unzGetFilePos64( + unzFile file, + unz64_file_pos* file_pos); + +extern int ZEXPORT unzGoToFilePos64( + unzFile file, + const unz64_file_pos* file_pos); + +/* ****************************************** */ + +extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file, + unz_file_info64 *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); + +extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, + unz_file_info *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); +/* + Get Info about the current file + if pfile_info!=NULL, the *pfile_info structure will contain somes info about + the current file + if szFileName!=NULL, the filemane string will be copied in szFileName + (fileNameBufferSize is the size of the buffer) + if extraField!=NULL, the extra field information will be copied in extraField + (extraFieldBufferSize is the size of the buffer). + This is the Central-header version of the extra field + if szComment!=NULL, the comment string of the file will be copied in szComment + (commentBufferSize is the size of the buffer) +*/ + + +/** Addition for GDAL : START */ + +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file)); + +/** Addition for GDAL : END */ + + +/***************************************************************************/ +/* for reading the content of the current zipfile, you can open it, read data + from it, and close it (you can close it before reading all the file) + */ + +extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); +/* + Open for reading data the current file in the zipfile. + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, + const char* password)); +/* + Open for reading data the current file in the zipfile. + password is a crypting password + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, + int* method, + int* level, + int raw)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + +extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, + int* method, + int* level, + int raw, + const char* password)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + + +extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); +/* + Close the file in zip opened with unzOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ + +extern int ZEXPORT unzReadCurrentFile OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read bytes from the current file (opened by unzOpenCurrentFile) + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ + +extern z_off_t ZEXPORT unztell OF((unzFile file)); + +extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file)); +/* + Give the current position in uncompressed data +*/ + +extern int ZEXPORT unzeof OF((unzFile file)); +/* + return 1 if the end of file was reached, 0 elsewhere +*/ + +extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read extra field from the current file (opened by unzOpenCurrentFile) + This is the local-header version of the extra field (sometimes, there is + more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ + +/***************************************************************************/ + +/* Get the current file offset */ +extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file); +extern uLong ZEXPORT unzGetOffset (unzFile file); + +/* Set the current file offset */ +extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos); +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); + + + +#ifdef __cplusplus +} +#endif + +#endif /* _unz64_H */ diff --git a/3party/zlib/contrib/minizip/zip.c b/3party/zlib/contrib/minizip/zip.c new file mode 100644 index 0000000000..3c34fc8bd4 --- /dev/null +++ b/3party/zlib/contrib/minizip/zip.c @@ -0,0 +1,2004 @@ +/* zip.c -- IO on .zip files using zlib + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + Changes + Oct-2009 - Mathias Svensson - Remove old C style function prototypes + Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives + Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions. + Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data + It is used when recreting zip archive with RAW when deleting items from a zip. + ZIP64 data is automaticly added to items that needs it, and existing ZIP64 data need to be removed. + Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required) + Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer + +*/ + + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include "zlib.h" +#include "zip.h" + +#ifdef STDC +# include <stddef.h> +# include <string.h> +# include <stdlib.h> +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include <errno.h> +#endif + + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +#ifndef VERSIONMADEBY +# define VERSIONMADEBY (0x0) /* platform depedent */ +#endif + +#ifndef Z_BUFSIZE +#define Z_BUFSIZE (64*1024) //(16384) +#endif + +#ifndef Z_MAXFILENAMEINZIP +#define Z_MAXFILENAMEINZIP (256) +#endif + +#ifndef ALLOC +# define ALLOC(size) (malloc(size)) +#endif +#ifndef TRYFREE +# define TRYFREE(p) {if (p) free(p);} +#endif + +/* +#define SIZECENTRALDIRITEM (0x2e) +#define SIZEZIPLOCALHEADER (0x1e) +*/ + +/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ + + +// NOT sure that this work on ALL platform +#define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32)) + +#ifndef SEEK_CUR +#define SEEK_CUR 1 +#endif + +#ifndef SEEK_END +#define SEEK_END 2 +#endif + +#ifndef SEEK_SET +#define SEEK_SET 0 +#endif + +#ifndef DEF_MEM_LEVEL +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +#endif +const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; + + +#define SIZEDATA_INDATABLOCK (4096-(4*4)) + +#define LOCALHEADERMAGIC (0x04034b50) +#define CENTRALHEADERMAGIC (0x02014b50) +#define ENDHEADERMAGIC (0x06054b50) +#define ZIP64ENDHEADERMAGIC (0x6064b50) +#define ZIP64ENDLOCHEADERMAGIC (0x7064b50) + +#define FLAG_LOCALHEADER_OFFSET (0x06) +#define CRC_LOCALHEADER_OFFSET (0x0e) + +#define SIZECENTRALHEADER (0x2e) /* 46 */ + +typedef struct linkedlist_datablock_internal_s +{ + struct linkedlist_datablock_internal_s* next_datablock; + uLong avail_in_this_block; + uLong filled_in_this_block; + uLong unused; /* for future use and alignement */ + unsigned char data[SIZEDATA_INDATABLOCK]; +} linkedlist_datablock_internal; + +typedef struct linkedlist_data_s +{ + linkedlist_datablock_internal* first_block; + linkedlist_datablock_internal* last_block; +} linkedlist_data; + + +typedef struct +{ + z_stream stream; /* zLib stream structure for inflate */ +#ifdef HAVE_BZIP2 + bz_stream bstream; /* bzLib stream structure for bziped */ +#endif + + int stream_initialised; /* 1 is stream is initialised */ + uInt pos_in_buffered_data; /* last written byte in buffered_data */ + + ZPOS64_T pos_local_header; /* offset of the local header of the file + currenty writing */ + char* central_header; /* central header data for the current file */ + uLong size_centralExtra; + uLong size_centralheader; /* size of the central header for cur file */ + uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */ + uLong flag; /* flag of the file currently writing */ + + int method; /* compression method of file currenty wr.*/ + int raw; /* 1 for directly writing raw data */ + Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ + uLong dosDate; + uLong crc32; + int encrypt; + int zip64; /* Add ZIP64 extened information in the extra field */ + ZPOS64_T pos_zip64extrainfo; + ZPOS64_T totalCompressedData; + ZPOS64_T totalUncompressedData; +#ifndef NOCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const unsigned long* pcrc_32_tab; + int crypt_header_size; +#endif +} curfile64_info; + +typedef struct +{ + zlib_filefunc64_32_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + linkedlist_data central_dir;/* datablock with central dir in construction*/ + int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ + curfile64_info ci; /* info on the file curretly writing */ + + ZPOS64_T begin_pos; /* position of the beginning of the zipfile */ + ZPOS64_T add_position_when_writting_offset; + ZPOS64_T number_entry; + +#ifndef NO_ADDFILEINEXISTINGZIP + char *globalcomment; +#endif + +} zip64_internal; + + +#ifndef NOCRYPT +#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED +#include "crypt.h" +#endif + +local linkedlist_datablock_internal* allocate_new_datablock() +{ + linkedlist_datablock_internal* ldi; + ldi = (linkedlist_datablock_internal*) + ALLOC(sizeof(linkedlist_datablock_internal)); + if (ldi!=NULL) + { + ldi->next_datablock = NULL ; + ldi->filled_in_this_block = 0 ; + ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; + } + return ldi; +} + +local void free_datablock(linkedlist_datablock_internal* ldi) +{ + while (ldi!=NULL) + { + linkedlist_datablock_internal* ldinext = ldi->next_datablock; + TRYFREE(ldi); + ldi = ldinext; + } +} + +local void init_linkedlist(linkedlist_data* ll) +{ + ll->first_block = ll->last_block = NULL; +} + +local void free_linkedlist(linkedlist_data* ll) +{ + free_datablock(ll->first_block); + ll->first_block = ll->last_block = NULL; +} + + +local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len) +{ + linkedlist_datablock_internal* ldi; + const unsigned char* from_copy; + + if (ll==NULL) + return ZIP_INTERNALERROR; + + if (ll->last_block == NULL) + { + ll->first_block = ll->last_block = allocate_new_datablock(); + if (ll->first_block == NULL) + return ZIP_INTERNALERROR; + } + + ldi = ll->last_block; + from_copy = (unsigned char*)buf; + + while (len>0) + { + uInt copy_this; + uInt i; + unsigned char* to_copy; + + if (ldi->avail_in_this_block==0) + { + ldi->next_datablock = allocate_new_datablock(); + if (ldi->next_datablock == NULL) + return ZIP_INTERNALERROR; + ldi = ldi->next_datablock ; + ll->last_block = ldi; + } + + if (ldi->avail_in_this_block < len) + copy_this = (uInt)ldi->avail_in_this_block; + else + copy_this = (uInt)len; + + to_copy = &(ldi->data[ldi->filled_in_this_block]); + + for (i=0;i<copy_this;i++) + *(to_copy+i)=*(from_copy+i); + + ldi->filled_in_this_block += copy_this; + ldi->avail_in_this_block -= copy_this; + from_copy += copy_this ; + len -= copy_this; + } + return ZIP_OK; +} + + + +/****************************************************************************/ + +#ifndef NO_ADDFILEINEXISTINGZIP +/* =========================================================================== + Inputs a long in LSB order to the given file + nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T) +*/ + +local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)); +local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte) +{ + unsigned char buf[8]; + int n; + for (n = 0; n < nbByte; n++) + { + buf[n] = (unsigned char)(x & 0xff); + x >>= 8; + } + if (x != 0) + { /* data overflow - hack for ZIP64 (X Roche) */ + for (n = 0; n < nbByte; n++) + { + buf[n] = 0xff; + } + } + + if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte) + return ZIP_ERRNO; + else + return ZIP_OK; +} + +local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte)); +local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte) +{ + unsigned char* buf=(unsigned char*)dest; + int n; + for (n = 0; n < nbByte; n++) { + buf[n] = (unsigned char)(x & 0xff); + x >>= 8; + } + + if (x != 0) + { /* data overflow - hack for ZIP64 */ + for (n = 0; n < nbByte; n++) + { + buf[n] = 0xff; + } + } +} + +/****************************************************************************/ + + +local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm) +{ + uLong year = (uLong)ptm->tm_year; + if (year>=1980) + year-=1980; + else if (year>=80) + year-=80; + return + (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) | + ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); +} + + +/****************************************************************************/ + +local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)); + +local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi) +{ + unsigned char c; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); + if (err==1) + { + *pi = (int)c; + return ZIP_OK; + } + else + { + if (ZERROR64(*pzlib_filefunc_def,filestream)) + return ZIP_ERRNO; + else + return ZIP_EOF; + } +} + + +/* =========================================================================== + Reads a long in LSB order from the given gz_stream. Sets +*/ +local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); + +local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) +{ + uLong x ; + int i = 0; + int err; + + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==ZIP_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); + +local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) +{ + uLong x ; + int i = 0; + int err; + + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<8; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<16; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<24; + + if (err==ZIP_OK) + *pX = x; + else + *pX = 0; + return err; +} + +local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)); + + +local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX) +{ + ZPOS64_T x; + int i = 0; + int err; + + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (ZPOS64_T)i; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<8; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<16; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<24; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<32; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<40; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<48; + + if (err==ZIP_OK) + err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((ZPOS64_T)i)<<56; + + if (err==ZIP_OK) + *pX = x; + else + *pX = 0; + + return err; +} + +#ifndef BUFREADCOMMENT +#define BUFREADCOMMENT (0x400) +#endif +/* + Locate the Central directory of a zipfile (at the end, just before + the global comment) +*/ +local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); + +local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) +{ + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackRead<uMaxBack) + { + uLong uReadSize; + ZPOS64_T uReadPos ; + int i; + if (uBackRead+BUFREADCOMMENT>uMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) + { + uPosFound = uReadPos+i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + return uPosFound; +} + +/* +Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before +the global comment) +*/ +local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); + +local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) +{ + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + uLong uL; + ZPOS64_T relativeOffset; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackRead<uMaxBack) + { + uLong uReadSize; + ZPOS64_T uReadPos; + int i; + if (uBackRead+BUFREADCOMMENT>uMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + { + // Signature "0x07064b50" Zip64 end of central directory locater + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) + { + uPosFound = uReadPos+i; + break; + } + } + + if (uPosFound!=0) + break; + } + + TRYFREE(buf); + if (uPosFound == 0) + return 0; + + /* Zip64 end of central directory locator */ + if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) + return 0; + + /* the signature, already checked */ + if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) + return 0; + + /* number of the disk with the start of the zip64 end of central directory */ + if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) + return 0; + if (uL != 0) + return 0; + + /* relative offset of the zip64 end of central directory record */ + if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK) + return 0; + + /* total number of disks */ + if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) + return 0; + if (uL != 1) + return 0; + + /* Goto Zip64 end of central directory record */ + if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) + return 0; + + /* the signature */ + if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) + return 0; + + if (uL != 0x06064b50) // signature of 'Zip64 end of central directory' + return 0; + + return relativeOffset; +} + +int LoadCentralDirectoryRecord(zip64_internal* pziinit) +{ + int err=ZIP_OK; + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + + ZPOS64_T size_central_dir; /* size of the central directory */ + ZPOS64_T offset_central_dir; /* offset of start of central directory */ + ZPOS64_T central_pos; + uLong uL; + + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + ZPOS64_T number_entry; + ZPOS64_T number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + uLong VersionMadeBy; + uLong VersionNeeded; + uLong size_comment; + + int hasZIP64Record = 0; + + // check first if we find a ZIP64 record + central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream); + if(central_pos > 0) + { + hasZIP64Record = 1; + } + else if(central_pos == 0) + { + central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream); + } + +/* disable to allow appending to empty ZIP archive + if (central_pos==0) + err=ZIP_ERRNO; +*/ + + if(hasZIP64Record) + { + ZPOS64_T sizeEndOfCentralDirectory; + if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) + err=ZIP_ERRNO; + + /* the signature, already checked */ + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) + err=ZIP_ERRNO; + + /* size of zip64 end of central directory record */ + if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK) + err=ZIP_ERRNO; + + /* version made by */ + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK) + err=ZIP_ERRNO; + + /* version needed to extract */ + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of this disk */ + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of the disk with the start of the central directory */ + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) + err=ZIP_ERRNO; + + /* total number of entries in the central directory on this disk */ + if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK) + err=ZIP_ERRNO; + + /* total number of entries in the central directory */ + if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK) + err=ZIP_ERRNO; + + if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) + err=ZIP_BADZIPFILE; + + /* size of the central directory */ + if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK) + err=ZIP_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK) + err=ZIP_ERRNO; + + // TODO.. + // read the comment from the standard central header. + size_comment = 0; + } + else + { + // Read End of central Directory info + if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=ZIP_ERRNO; + + /* the signature, already checked */ + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of this disk */ + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) + err=ZIP_ERRNO; + + /* number of the disk with the start of the central directory */ + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) + err=ZIP_ERRNO; + + /* total number of entries in the central dir on this disk */ + number_entry = 0; + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) + err=ZIP_ERRNO; + else + number_entry = uL; + + /* total number of entries in the central dir */ + number_entry_CD = 0; + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) + err=ZIP_ERRNO; + else + number_entry_CD = uL; + + if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) + err=ZIP_BADZIPFILE; + + /* size of the central directory */ + size_central_dir = 0; + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) + err=ZIP_ERRNO; + else + size_central_dir = uL; + + /* offset of start of central directory with respect to the starting disk number */ + offset_central_dir = 0; + if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) + err=ZIP_ERRNO; + else + offset_central_dir = uL; + + + /* zipfile global comment length */ + if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK) + err=ZIP_ERRNO; + } + + if ((central_pos<offset_central_dir+size_central_dir) && + (err==ZIP_OK)) + err=ZIP_BADZIPFILE; + + if (err!=ZIP_OK) + { + ZCLOSE64(pziinit->z_filefunc, pziinit->filestream); + return ZIP_ERRNO; + } + + if (size_comment>0) + { + pziinit->globalcomment = (char*)ALLOC(size_comment+1); + if (pziinit->globalcomment) + { + size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment); + pziinit->globalcomment[size_comment]=0; + } + } + + byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir); + pziinit->add_position_when_writting_offset = byte_before_the_zipfile; + + { + ZPOS64_T size_central_dir_to_read = size_central_dir; + size_t buf_size = SIZEDATA_INDATABLOCK; + void* buf_read = (void*)ALLOC(buf_size); + if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) + err=ZIP_ERRNO; + + while ((size_central_dir_to_read>0) && (err==ZIP_OK)) + { + ZPOS64_T read_this = SIZEDATA_INDATABLOCK; + if (read_this > size_central_dir_to_read) + read_this = size_central_dir_to_read; + + if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this) + err=ZIP_ERRNO; + + if (err==ZIP_OK) + err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this); + + size_central_dir_to_read-=read_this; + } + TRYFREE(buf_read); + } + pziinit->begin_pos = byte_before_the_zipfile; + pziinit->number_entry = number_entry_CD; + + if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0) + err=ZIP_ERRNO; + + return err; +} + + +#endif /* !NO_ADDFILEINEXISTINGZIP*/ + + +/************************************************************/ +extern zipFile ZEXPORT zipOpen3 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) +{ + zip64_internal ziinit; + zip64_internal* zi; + int err=ZIP_OK; + + ziinit.z_filefunc.zseek32_file = NULL; + ziinit.z_filefunc.ztell32_file = NULL; + if (pzlib_filefunc64_32_def==NULL) + fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64); + else + ziinit.z_filefunc = *pzlib_filefunc64_32_def; + + ziinit.filestream = ZOPEN64(ziinit.z_filefunc, + pathname, + (append == APPEND_STATUS_CREATE) ? + (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) : + (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING)); + + if (ziinit.filestream == NULL) + return NULL; + + if (append == APPEND_STATUS_CREATEAFTER) + ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END); + + ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream); + ziinit.in_opened_file_inzip = 0; + ziinit.ci.stream_initialised = 0; + ziinit.number_entry = 0; + ziinit.add_position_when_writting_offset = 0; + init_linkedlist(&(ziinit.central_dir)); + + + + zi = (zip64_internal*)ALLOC(sizeof(zip64_internal)); + if (zi==NULL) + { + ZCLOSE64(ziinit.z_filefunc,ziinit.filestream); + return NULL; + } + + /* now we add file in a zipfile */ +# ifndef NO_ADDFILEINEXISTINGZIP + ziinit.globalcomment = NULL; + if (append == APPEND_STATUS_ADDINZIP) + { + // Read and Cache Central Directory Records + err = LoadCentralDirectoryRecord(&ziinit); + } + + if (globalcomment) + { + *globalcomment = ziinit.globalcomment; + } +# endif /* !NO_ADDFILEINEXISTINGZIP*/ + + if (err != ZIP_OK) + { +# ifndef NO_ADDFILEINEXISTINGZIP + TRYFREE(ziinit.globalcomment); +# endif /* !NO_ADDFILEINEXISTINGZIP*/ + TRYFREE(zi); + return NULL; + } + else + { + *zi = ziinit; + return (zipFile)zi; + } +} + +extern zipFile ZEXPORT zipOpen2 (const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def) +{ + if (pzlib_filefunc32_def != NULL) + { + zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; + fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); + return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); + } + else + return zipOpen3(pathname, append, globalcomment, NULL); +} + +extern zipFile ZEXPORT zipOpen2_64 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def) +{ + if (pzlib_filefunc_def != NULL) + { + zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; + zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; + zlib_filefunc64_32_def_fill.ztell32_file = NULL; + zlib_filefunc64_32_def_fill.zseek32_file = NULL; + return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); + } + else + return zipOpen3(pathname, append, globalcomment, NULL); +} + + + +extern zipFile ZEXPORT zipOpen (const char* pathname, int append) +{ + return zipOpen3((const void*)pathname,append,NULL,NULL); +} + +extern zipFile ZEXPORT zipOpen64 (const void* pathname, int append) +{ + return zipOpen3(pathname,append,NULL,NULL); +} + +int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) +{ + /* write the local header */ + int err; + uInt size_filename = (uInt)strlen(filename); + uInt size_extrafield = size_extrafield_local; + + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4); + + if (err==ZIP_OK) + { + if(zi->ci.zip64) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */ + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ + } + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); + + // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ + if (err==ZIP_OK) + { + if(zi->ci.zip64) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */ + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ + } + if (err==ZIP_OK) + { + if(zi->ci.zip64) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */ + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ + } + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); + + if(zi->ci.zip64) + { + size_extrafield += 20; + } + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2); + + if ((err==ZIP_OK) && (size_filename > 0)) + { + if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) + err = ZIP_ERRNO; + } + + if ((err==ZIP_OK) && (size_extrafield_local > 0)) + { + if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local) + err = ZIP_ERRNO; + } + + + if ((err==ZIP_OK) && (zi->ci.zip64)) + { + // write the Zip64 extended info + short HeaderID = 1; + short DataSize = 16; + ZPOS64_T CompressedSize = 0; + ZPOS64_T UncompressedSize = 0; + + // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file) + zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream); + + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2); + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2); + + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8); + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8); + } + + return err; +} + +/* + NOTE. + When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped + before calling this function it can be done with zipRemoveExtraInfoBlock + + It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize + unnecessary allocations. + */ +extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw, + int windowBits,int memLevel, int strategy, + const char* password, uLong crcForCrypting, + uLong versionMadeBy, uLong flagBase, int zip64) +{ + zip64_internal* zi; + uInt size_filename; + uInt size_comment; + uInt i; + int err = ZIP_OK; + +# ifdef NOCRYPT + if (password != NULL) + return ZIP_PARAMERROR; +# endif + + if (file == NULL) + return ZIP_PARAMERROR; + +#ifdef HAVE_BZIP2 + if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED)) + return ZIP_PARAMERROR; +#else + if ((method!=0) && (method!=Z_DEFLATED)) + return ZIP_PARAMERROR; +#endif + + zi = (zip64_internal*)file; + + if (zi->in_opened_file_inzip == 1) + { + err = zipCloseFileInZip (file); + if (err != ZIP_OK) + return err; + } + + if (filename==NULL) + filename="-"; + + if (comment==NULL) + size_comment = 0; + else + size_comment = (uInt)strlen(comment); + + size_filename = (uInt)strlen(filename); + + if (zipfi == NULL) + zi->ci.dosDate = 0; + else + { + if (zipfi->dosDate != 0) + zi->ci.dosDate = zipfi->dosDate; + else + zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date); + } + + zi->ci.flag = flagBase; + if ((level==8) || (level==9)) + zi->ci.flag |= 2; + if ((level==2)) + zi->ci.flag |= 4; + if ((level==1)) + zi->ci.flag |= 6; + if (password != NULL) + zi->ci.flag |= 1; + + zi->ci.crc32 = 0; + zi->ci.method = method; + zi->ci.encrypt = 0; + zi->ci.stream_initialised = 0; + zi->ci.pos_in_buffered_data = 0; + zi->ci.raw = raw; + zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream); + + zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment; + zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data + + zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree); + + zi->ci.size_centralExtra = size_extrafield_global; + zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); + /* version info */ + zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2); + zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); + zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); + zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); + zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); + zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ + zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ + zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ + zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); + zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); + zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); + zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ + + if (zipfi==NULL) + zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); + else + zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); + + if (zipfi==NULL) + zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); + else + zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); + + if(zi->ci.pos_local_header >= 0xffffffff) + zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4); + else + zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writting_offset,4); + + for (i=0;i<size_filename;i++) + *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i); + + for (i=0;i<size_extrafield_global;i++) + *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) = + *(((const char*)extrafield_global)+i); + + for (i=0;i<size_comment;i++) + *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+ + size_extrafield_global+i) = *(comment+i); + if (zi->ci.central_header == NULL) + return ZIP_INTERNALERROR; + + zi->ci.zip64 = zip64; + zi->ci.totalCompressedData = 0; + zi->ci.totalUncompressedData = 0; + zi->ci.pos_zip64extrainfo = 0; + + err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local); + +#ifdef HAVE_BZIP2 + zi->ci.bstream.avail_in = (uInt)0; + zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; + zi->ci.bstream.total_in_hi32 = 0; + zi->ci.bstream.total_in_lo32 = 0; + zi->ci.bstream.total_out_hi32 = 0; + zi->ci.bstream.total_out_lo32 = 0; +#endif + + zi->ci.stream.avail_in = (uInt)0; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + zi->ci.stream.total_in = 0; + zi->ci.stream.total_out = 0; + zi->ci.stream.data_type = Z_BINARY; + +#ifdef HAVE_BZIP2 + if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) +#else + if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) +#endif + { + if(zi->ci.method == Z_DEFLATED) + { + zi->ci.stream.zalloc = (alloc_func)0; + zi->ci.stream.zfree = (free_func)0; + zi->ci.stream.opaque = (voidpf)0; + + if (windowBits>0) + windowBits = -windowBits; + + err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy); + + if (err==Z_OK) + zi->ci.stream_initialised = Z_DEFLATED; + } + else if(zi->ci.method == Z_BZIP2ED) + { +#ifdef HAVE_BZIP2 + // Init BZip stuff here + zi->ci.bstream.bzalloc = 0; + zi->ci.bstream.bzfree = 0; + zi->ci.bstream.opaque = (voidpf)0; + + err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35); + if(err == BZ_OK) + zi->ci.stream_initialised = Z_BZIP2ED; +#endif + } + + } + +# ifndef NOCRYPT + zi->ci.crypt_header_size = 0; + if ((err==Z_OK) && (password != NULL)) + { + unsigned char bufHead[RAND_HEAD_LEN]; + unsigned int sizeHead; + zi->ci.encrypt = 1; + zi->ci.pcrc_32_tab = get_crc_table(); + /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/ + + sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting); + zi->ci.crypt_header_size = sizeHead; + + if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead) + err = ZIP_ERRNO; + } +# endif + + if (err==Z_OK) + zi->in_opened_file_inzip = 1; + return err; +} + +extern int ZEXPORT zipOpenNewFileInZip4 (zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw, + int windowBits,int memLevel, int strategy, + const char* password, uLong crcForCrypting, + uLong versionMadeBy, uLong flagBase) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + windowBits, memLevel, strategy, + password, crcForCrypting, versionMadeBy, flagBase, 0); +} + +extern int ZEXPORT zipOpenNewFileInZip3 (zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw, + int windowBits,int memLevel, int strategy, + const char* password, uLong crcForCrypting) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + windowBits, memLevel, strategy, + password, crcForCrypting, VERSIONMADEBY, 0, 0); +} + +extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw, + int windowBits,int memLevel, int strategy, + const char* password, uLong crcForCrypting, int zip64) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + windowBits, memLevel, strategy, + password, crcForCrypting, VERSIONMADEBY, 0, zip64); +} + +extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + NULL, 0, VERSIONMADEBY, 0, 0); +} + +extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void* extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int raw, int zip64) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, raw, + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + NULL, 0, VERSIONMADEBY, 0, zip64); +} + +extern int ZEXPORT zipOpenNewFileInZip64 (zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void*extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level, int zip64) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, 0, + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + NULL, 0, VERSIONMADEBY, 0, zip64); +} + +extern int ZEXPORT zipOpenNewFileInZip (zipFile file, const char* filename, const zip_fileinfo* zipfi, + const void* extrafield_local, uInt size_extrafield_local, + const void*extrafield_global, uInt size_extrafield_global, + const char* comment, int method, int level) +{ + return zipOpenNewFileInZip4_64 (file, filename, zipfi, + extrafield_local, size_extrafield_local, + extrafield_global, size_extrafield_global, + comment, method, level, 0, + -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, + NULL, 0, VERSIONMADEBY, 0, 0); +} + +local int zip64FlushWriteBuffer(zip64_internal* zi) +{ + int err=ZIP_OK; + + if (zi->ci.encrypt != 0) + { +#ifndef NOCRYPT + uInt i; + int t; + for (i=0;i<zi->ci.pos_in_buffered_data;i++) + zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t); +#endif + } + + if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data) + err = ZIP_ERRNO; + + zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data; + +#ifdef HAVE_BZIP2 + if(zi->ci.method == Z_BZIP2ED) + { + zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32; + zi->ci.bstream.total_in_lo32 = 0; + zi->ci.bstream.total_in_hi32 = 0; + } + else +#endif + { + zi->ci.totalUncompressedData += zi->ci.stream.total_in; + zi->ci.stream.total_in = 0; + } + + + zi->ci.pos_in_buffered_data = 0; + + return err; +} + +extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned int len) +{ + zip64_internal* zi; + int err=ZIP_OK; + + if (file == NULL) + return ZIP_PARAMERROR; + zi = (zip64_internal*)file; + + if (zi->in_opened_file_inzip == 0) + return ZIP_PARAMERROR; + + zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len); + +#ifdef HAVE_BZIP2 + if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw)) + { + zi->ci.bstream.next_in = (void*)buf; + zi->ci.bstream.avail_in = len; + err = BZ_RUN_OK; + + while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0)) + { + if (zi->ci.bstream.avail_out == 0) + { + if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; + } + + + if(err != BZ_RUN_OK) + break; + + if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) + { + uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32; +// uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32; + err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN); + + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ; + } + } + + if(err == BZ_RUN_OK) + err = ZIP_OK; + } + else +#endif + { + zi->ci.stream.next_in = (Bytef*)buf; + zi->ci.stream.avail_in = len; + + while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) + { + if (zi->ci.stream.avail_out == 0) + { + if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + } + + + if(err != ZIP_OK) + break; + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + uLong uTotalOutBefore = zi->ci.stream.total_out; + err=deflate(&zi->ci.stream, Z_NO_FLUSH); + if(uTotalOutBefore > zi->ci.stream.total_out) + { + int bBreak = 0; + bBreak++; + } + + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; + } + else + { + uInt copy_this,i; + if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) + copy_this = zi->ci.stream.avail_in; + else + copy_this = zi->ci.stream.avail_out; + + for (i = 0; i < copy_this; i++) + *(((char*)zi->ci.stream.next_out)+i) = + *(((const char*)zi->ci.stream.next_in)+i); + { + zi->ci.stream.avail_in -= copy_this; + zi->ci.stream.avail_out-= copy_this; + zi->ci.stream.next_in+= copy_this; + zi->ci.stream.next_out+= copy_this; + zi->ci.stream.total_in+= copy_this; + zi->ci.stream.total_out+= copy_this; + zi->ci.pos_in_buffered_data += copy_this; + } + } + }// while(...) + } + + return err; +} + +extern int ZEXPORT zipCloseFileInZipRaw (zipFile file, uLong uncompressed_size, uLong crc32) +{ + return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32); +} + +extern int ZEXPORT zipCloseFileInZipRaw64 (zipFile file, ZPOS64_T uncompressed_size, uLong crc32) +{ + zip64_internal* zi; + ZPOS64_T compressed_size; + uLong invalidValue = 0xffffffff; + short datasize = 0; + int err=ZIP_OK; + + if (file == NULL) + return ZIP_PARAMERROR; + zi = (zip64_internal*)file; + + if (zi->in_opened_file_inzip == 0) + return ZIP_PARAMERROR; + zi->ci.stream.avail_in = 0; + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + while (err==ZIP_OK) + { + uLong uTotalOutBefore; + if (zi->ci.stream.avail_out == 0) + { + if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.stream.next_out = zi->ci.buffered_data; + } + uTotalOutBefore = zi->ci.stream.total_out; + err=deflate(&zi->ci.stream, Z_FINISH); + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; + } + } + else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) + { +#ifdef HAVE_BZIP2 + err = BZ_FINISH_OK; + while (err==BZ_FINISH_OK) + { + uLong uTotalOutBefore; + if (zi->ci.bstream.avail_out == 0) + { + if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) + err = ZIP_ERRNO; + zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; + zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; + } + uTotalOutBefore = zi->ci.bstream.total_out_lo32; + err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH); + if(err == BZ_STREAM_END) + err = Z_STREAM_END; + + zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore); + } + + if(err == BZ_FINISH_OK) + err = ZIP_OK; +#endif + } + + if (err==Z_STREAM_END) + err=ZIP_OK; /* this is normal */ + + if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) + { + if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO) + err = ZIP_ERRNO; + } + + if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) + { + int tmp_err = deflateEnd(&zi->ci.stream); + if (err == ZIP_OK) + err = tmp_err; + zi->ci.stream_initialised = 0; + } +#ifdef HAVE_BZIP2 + else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) + { + int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream); + if (err==ZIP_OK) + err = tmperr; + zi->ci.stream_initialised = 0; + } +#endif + + if (!zi->ci.raw) + { + crc32 = (uLong)zi->ci.crc32; + uncompressed_size = zi->ci.totalUncompressedData; + } + compressed_size = zi->ci.totalCompressedData; + +# ifndef NOCRYPT + compressed_size += zi->ci.crypt_header_size; +# endif + + // update Current Item crc and sizes, + if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff) + { + /*version Made by*/ + zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2); + /*version needed*/ + zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2); + + } + + zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ + + + if(compressed_size >= 0xffffffff) + zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/ + else + zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/ + + /// set internal file attributes field + if (zi->ci.stream.data_type == Z_ASCII) + zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); + + if(uncompressed_size >= 0xffffffff) + zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/ + else + zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/ + + // Add ZIP64 extra info field for uncompressed size + if(uncompressed_size >= 0xffffffff) + datasize += 8; + + // Add ZIP64 extra info field for compressed size + if(compressed_size >= 0xffffffff) + datasize += 8; + + // Add ZIP64 extra info field for relative offset to local file header of current file + if(zi->ci.pos_local_header >= 0xffffffff) + datasize += 8; + + if(datasize > 0) + { + char* p = NULL; + + if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) + { + // we can not write more data to the buffer that we have room for. + return ZIP_BADZIPFILE; + } + + p = zi->ci.central_header + zi->ci.size_centralheader; + + // Add Extra Information Header for 'ZIP64 information' + zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID + p += 2; + zip64local_putValue_inmemory(p, datasize, 2); // DataSize + p += 2; + + if(uncompressed_size >= 0xffffffff) + { + zip64local_putValue_inmemory(p, uncompressed_size, 8); + p += 8; + } + + if(compressed_size >= 0xffffffff) + { + zip64local_putValue_inmemory(p, compressed_size, 8); + p += 8; + } + + if(zi->ci.pos_local_header >= 0xffffffff) + { + zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8); + p += 8; + } + + // Update how much extra free space we got in the memory buffer + // and increase the centralheader size so the new ZIP64 fields are included + // ( 4 below is the size of HeaderID and DataSize field ) + zi->ci.size_centralExtraFree -= datasize + 4; + zi->ci.size_centralheader += datasize + 4; + + // Update the extra info size field + zi->ci.size_centralExtra += datasize + 4; + zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2); + } + + if (err==ZIP_OK) + err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader); + + free(zi->ci.central_header); + + if (err==ZIP_OK) + { + // Update the LocalFileHeader with the new values. + + ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); + + if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) + err = ZIP_ERRNO; + + if (err==ZIP_OK) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ + + if(uncompressed_size >= 0xffffffff) + { + if(zi->ci.pos_zip64extrainfo > 0) + { + // Update the size in the ZIP64 extended field. + if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0) + err = ZIP_ERRNO; + + if (err==ZIP_OK) /* compressed size, unknown */ + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8); + + if (err==ZIP_OK) /* uncompressed size, unknown */ + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8); + } + } + else + { + if (err==ZIP_OK) /* compressed size, unknown */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); + + if (err==ZIP_OK) /* uncompressed size, unknown */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); + } + + if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0) + err = ZIP_ERRNO; + } + + zi->number_entry ++; + zi->in_opened_file_inzip = 0; + + return err; +} + +extern int ZEXPORT zipCloseFileInZip (zipFile file) +{ + return zipCloseFileInZipRaw (file,0,0); +} + +int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip) +{ + int err = ZIP_OK; + ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset; + + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4); + + /*num disks*/ + if (err==ZIP_OK) /* number of the disk with the start of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); + + /*relative offset*/ + if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8); + + /*total disks*/ /* Do not support spawning of disk so always say 1 here*/ + if (err==ZIP_OK) /* number of the disk with the start of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4); + + return err; +} + +int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) +{ + int err = ZIP_OK; + + uLong Zip64DataSize = 44; + + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4); + + if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ? + + if (err==ZIP_OK) /* version made by */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); + + if (err==ZIP_OK) /* version needed */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); + + if (err==ZIP_OK) /* number of this disk */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); + + if (err==ZIP_OK) /* number of the disk with the start of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); + + if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); + + if (err==ZIP_OK) /* total number of entries in the central dir */ + err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); + + if (err==ZIP_OK) /* size of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8); + + if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ + { + ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; + err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8); + } + return err; +} +int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) +{ + int err = ZIP_OK; + + /*signature*/ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); + + if (err==ZIP_OK) /* number of this disk */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); + + if (err==ZIP_OK) /* number of the disk with the start of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); + + if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ + { + { + if(zi->number_entry >= 0xFFFF) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); + } + } + + if (err==ZIP_OK) /* total number of entries in the central dir */ + { + if(zi->number_entry >= 0xFFFF) + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); + } + + if (err==ZIP_OK) /* size of the central directory */ + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4); + + if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ + { + ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; + if(pos >= 0xffffffff) + { + err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4); + } + else + err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4); + } + + return err; +} + +int Write_GlobalComment(zip64_internal* zi, const char* global_comment) +{ + int err = ZIP_OK; + uInt size_global_comment = 0; + + if(global_comment != NULL) + size_global_comment = (uInt)strlen(global_comment); + + err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); + + if (err == ZIP_OK && size_global_comment > 0) + { + if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment) + err = ZIP_ERRNO; + } + return err; +} + +extern int ZEXPORT zipClose (zipFile file, const char* global_comment) +{ + zip64_internal* zi; + int err = 0; + uLong size_centraldir = 0; + ZPOS64_T centraldir_pos_inzip; + ZPOS64_T pos; + + if (file == NULL) + return ZIP_PARAMERROR; + + zi = (zip64_internal*)file; + + if (zi->in_opened_file_inzip == 1) + { + err = zipCloseFileInZip (file); + } + +#ifndef NO_ADDFILEINEXISTINGZIP + if (global_comment==NULL) + global_comment = zi->globalcomment; +#endif + + centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); + + if (err==ZIP_OK) + { + linkedlist_datablock_internal* ldi = zi->central_dir.first_block; + while (ldi!=NULL) + { + if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) + { + if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block) + err = ZIP_ERRNO; + } + + size_centraldir += ldi->filled_in_this_block; + ldi = ldi->next_datablock; + } + } + free_linkedlist(&(zi->central_dir)); + + pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; + if(pos >= 0xffffffff) + { + ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream); + Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); + + Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos); + } + + if (err==ZIP_OK) + err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); + + if(err == ZIP_OK) + err = Write_GlobalComment(zi, global_comment); + + if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0) + if (err == ZIP_OK) + err = ZIP_ERRNO; + +#ifndef NO_ADDFILEINEXISTINGZIP + TRYFREE(zi->globalcomment); +#endif + TRYFREE(zi); + + return err; +} + +extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHeader) +{ + char* p = pData; + int size = 0; + char* pNewHeader; + char* pTmp; + short header; + short dataSize; + + int retVal = ZIP_OK; + + if(pData == NULL || *dataLen < 4) + return ZIP_PARAMERROR; + + pNewHeader = (char*)ALLOC(*dataLen); + pTmp = pNewHeader; + + while(p < (pData + *dataLen)) + { + header = *(short*)p; + dataSize = *(((short*)p)+1); + + if( header == sHeader ) // Header found. + { + p += dataSize + 4; // skip it. do not copy to temp buffer + } + else + { + // Extra Info block should not be removed, So copy it to the temp buffer. + memcpy(pTmp, p, dataSize + 4); + p += dataSize + 4; + size += dataSize + 4; + } + + } + + if(size < *dataLen) + { + // clean old extra info block. + memset(pData,0, *dataLen); + + // copy the new extra info block over the old + if(size > 0) + memcpy(pData, pNewHeader, size); + + // set the new extra info size + *dataLen = size; + + retVal = ZIP_OK; + } + else + retVal = ZIP_ERRNO; + + TRYFREE(pNewHeader); + + return retVal; +} diff --git a/3party/zlib/contrib/minizip/zip.h b/3party/zlib/contrib/minizip/zip.h new file mode 100644 index 0000000000..8aaebb6234 --- /dev/null +++ b/3party/zlib/contrib/minizip/zip.h @@ -0,0 +1,362 @@ +/* zip.h -- IO on .zip files using zlib + Version 1.1, February 14h, 2010 + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + --------------------------------------------------------------------------- + + Condition of use and distribution are the same than zlib : + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + --------------------------------------------------------------------------- + + Changes + + See header of zip.h + +*/ + +#ifndef _zip12_H +#define _zip12_H + +#ifdef __cplusplus +extern "C" { +#endif + +//#define HAVE_BZIP2 + +#ifndef _ZLIB_H +#include "zlib.h" +#endif + +#ifndef _ZLIBIOAPI_H +#include "ioapi.h" +#endif + +#ifdef HAVE_BZIP2 +#include "bzlib.h" +#endif + +#define Z_BZIP2ED 12 + +#if defined(STRICTZIP) || defined(STRICTZIPUNZIP) +/* like the STRICT of WIN32, we define a pointer that cannot be converted + from (void*) without cast */ +typedef struct TagzipFile__ { int unused; } zipFile__; +typedef zipFile__ *zipFile; +#else +typedef voidp zipFile; +#endif + +#define ZIP_OK (0) +#define ZIP_EOF (0) +#define ZIP_ERRNO (Z_ERRNO) +#define ZIP_PARAMERROR (-102) +#define ZIP_BADZIPFILE (-103) +#define ZIP_INTERNALERROR (-104) + +#ifndef DEF_MEM_LEVEL +# if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +# else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +# endif +#endif +/* default memLevel */ + +/* tm_zip contain date/time info */ +typedef struct tm_zip_s +{ + uInt tm_sec; /* seconds after the minute - [0,59] */ + uInt tm_min; /* minutes after the hour - [0,59] */ + uInt tm_hour; /* hours since midnight - [0,23] */ + uInt tm_mday; /* day of the month - [1,31] */ + uInt tm_mon; /* months since January - [0,11] */ + uInt tm_year; /* years - [1980..2044] */ +} tm_zip; + +typedef struct +{ + tm_zip tmz_date; /* date in understandable format */ + uLong dosDate; /* if dos_date == 0, tmu_date is used */ +/* uLong flag; */ /* general purpose bit flag 2 bytes */ + + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ +} zip_fileinfo; + +typedef const char* zipcharpc; + + +#define APPEND_STATUS_CREATE (0) +#define APPEND_STATUS_CREATEAFTER (1) +#define APPEND_STATUS_ADDINZIP (2) + +extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append)); +extern zipFile ZEXPORT zipOpen64 OF((const void *pathname, int append)); +/* + Create a zipfile. + pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on + an Unix computer "zlib/zlib113.zip". + if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip + will be created at the end of the file. + (useful if the file contain a self extractor code) + if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will + add files in existing zip (be sure you don't add file that doesn't exist) + If the zipfile cannot be opened, the return value is NULL. + Else, the return value is a zipFile Handle, usable with other function + of this zip package. +*/ + +/* Note : there is no delete function into a zipfile. + If you want delete file into a zipfile, you must open a zipfile, and create another + Of couse, you can use RAW reading and writing to copy the file you did not want delte +*/ + +extern zipFile ZEXPORT zipOpen2 OF((const char *pathname, + int append, + zipcharpc* globalcomment, + zlib_filefunc_def* pzlib_filefunc_def)); + +extern zipFile ZEXPORT zipOpen2_64 OF((const void *pathname, + int append, + zipcharpc* globalcomment, + zlib_filefunc64_def* pzlib_filefunc_def)); + +extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level)); + +extern int ZEXPORT zipOpenNewFileInZip64 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int zip64)); + +/* + Open a file in the ZIP for writing. + filename : the filename in zip (if NULL, '-' without quote will be used + *zipfi contain supplemental information + if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local + contains the extrafield data the the local header + if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global + contains the extrafield data the the local header + if comment != NULL, comment contain the comment string + method contain the compression method (0 for store, Z_DEFLATED for deflate) + level contain the level of compression (can be Z_DEFAULT_COMPRESSION) + zip64 is set to 1 if a zip64 extended information block should be added to the local file header. + this MUST be '1' if the uncompressed size is >= 0xffffffff. + +*/ + + +extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw)); + + +extern int ZEXPORT zipOpenNewFileInZip2_64 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int zip64)); +/* + Same than zipOpenNewFileInZip, except if raw=1, we write raw file + */ + +extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int windowBits, + int memLevel, + int strategy, + const char* password, + uLong crcForCrypting)); + +extern int ZEXPORT zipOpenNewFileInZip3_64 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int windowBits, + int memLevel, + int strategy, + const char* password, + uLong crcForCrypting, + int zip64 + )); + +/* + Same than zipOpenNewFileInZip2, except + windowBits,memLevel,,strategy : see parameter strategy in deflateInit2 + password : crypting password (NULL for no crypting) + crcForCrypting : crc of file to compress (needed for crypting) + */ + +extern int ZEXPORT zipOpenNewFileInZip4 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int windowBits, + int memLevel, + int strategy, + const char* password, + uLong crcForCrypting, + uLong versionMadeBy, + uLong flagBase + )); + + +extern int ZEXPORT zipOpenNewFileInZip4_64 OF((zipFile file, + const char* filename, + const zip_fileinfo* zipfi, + const void* extrafield_local, + uInt size_extrafield_local, + const void* extrafield_global, + uInt size_extrafield_global, + const char* comment, + int method, + int level, + int raw, + int windowBits, + int memLevel, + int strategy, + const char* password, + uLong crcForCrypting, + uLong versionMadeBy, + uLong flagBase, + int zip64 + )); +/* + Same than zipOpenNewFileInZip4, except + versionMadeBy : value for Version made by field + flag : value for flag field (compression level info will be added) + */ + + +extern int ZEXPORT zipWriteInFileInZip OF((zipFile file, + const void* buf, + unsigned len)); +/* + Write data in the zipfile +*/ + +extern int ZEXPORT zipCloseFileInZip OF((zipFile file)); +/* + Close the current file in the zipfile +*/ + +extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file, + uLong uncompressed_size, + uLong crc32)); + +extern int ZEXPORT zipCloseFileInZipRaw64 OF((zipFile file, + ZPOS64_T uncompressed_size, + uLong crc32)); + +/* + Close the current file in the zipfile, for file opened with + parameter raw=1 in zipOpenNewFileInZip2 + uncompressed_size and crc32 are value for the uncompressed size +*/ + +extern int ZEXPORT zipClose OF((zipFile file, + const char* global_comment)); +/* + Close the zipfile +*/ + + +extern int ZEXPORT zipRemoveExtraInfoBlock OF((char* pData, int* dataLen, short sHeader)); +/* + zipRemoveExtraInfoBlock - Added by Mathias Svensson + + Remove extra information block from a extra information data for the local file header or central directory header + + It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode. + + 0x0001 is the signature header for the ZIP64 extra information blocks + + usage. + Remove ZIP64 Extra information from a central director extra field data + zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001); + + Remove ZIP64 Extra information from a Local File Header extra field data + zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001); +*/ + +#ifdef __cplusplus +} +#endif + +#endif /* _zip64_H */ diff --git a/3party/zlib/contrib/pascal/example.pas b/3party/zlib/contrib/pascal/example.pas new file mode 100644 index 0000000000..5518b36a73 --- /dev/null +++ b/3party/zlib/contrib/pascal/example.pas @@ -0,0 +1,599 @@ +(* example.c -- usage example of the zlib compression library + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Pascal translation + * Copyright (C) 1998 by Jacques Nomssi Nzali. + * For conditions of distribution and use, see copyright notice in readme.txt + * + * Adaptation to the zlibpas interface + * Copyright (C) 2003 by Cosmin Truta. + * For conditions of distribution and use, see copyright notice in readme.txt + *) + +program example; + +{$DEFINE TEST_COMPRESS} +{DO NOT $DEFINE TEST_GZIO} +{$DEFINE TEST_DEFLATE} +{$DEFINE TEST_INFLATE} +{$DEFINE TEST_FLUSH} +{$DEFINE TEST_SYNC} +{$DEFINE TEST_DICT} + +uses SysUtils, zlibpas; + +const TESTFILE = 'foo.gz'; + +(* "hello world" would be more standard, but the repeated "hello" + * stresses the compression code better, sorry... + *) +const hello: PChar = 'hello, hello!'; + +const dictionary: PChar = 'hello'; + +var dictId: LongInt; (* Adler32 value of the dictionary *) + +procedure CHECK_ERR(err: Integer; msg: String); +begin + if err <> Z_OK then + begin + WriteLn(msg, ' error: ', err); + Halt(1); + end; +end; + +procedure EXIT_ERR(const msg: String); +begin + WriteLn('Error: ', msg); + Halt(1); +end; + +(* =========================================================================== + * Test compress and uncompress + *) +{$IFDEF TEST_COMPRESS} +procedure test_compress(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + len: LongInt; +begin + len := StrLen(hello)+1; + + err := compress(compr, comprLen, hello, len); + CHECK_ERR(err, 'compress'); + + StrCopy(PChar(uncompr), 'garbage'); + + err := uncompress(uncompr, uncomprLen, compr, comprLen); + CHECK_ERR(err, 'uncompress'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad uncompress') + else + WriteLn('uncompress(): ', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test read/write of .gz files + *) +{$IFDEF TEST_GZIO} +procedure test_gzio(const fname: PChar; (* compressed file name *) + uncompr: Pointer; + uncomprLen: LongInt); +var err: Integer; + len: Integer; + zfile: gzFile; + pos: LongInt; +begin + len := StrLen(hello)+1; + + zfile := gzopen(fname, 'wb'); + if zfile = NIL then + begin + WriteLn('gzopen error'); + Halt(1); + end; + gzputc(zfile, 'h'); + if gzputs(zfile, 'ello') <> 4 then + begin + WriteLn('gzputs err: ', gzerror(zfile, err)); + Halt(1); + end; + {$IFDEF GZ_FORMAT_STRING} + if gzprintf(zfile, ', %s!', 'hello') <> 8 then + begin + WriteLn('gzprintf err: ', gzerror(zfile, err)); + Halt(1); + end; + {$ELSE} + if gzputs(zfile, ', hello!') <> 8 then + begin + WriteLn('gzputs err: ', gzerror(zfile, err)); + Halt(1); + end; + {$ENDIF} + gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *) + gzclose(zfile); + + zfile := gzopen(fname, 'rb'); + if zfile = NIL then + begin + WriteLn('gzopen error'); + Halt(1); + end; + + StrCopy(PChar(uncompr), 'garbage'); + + if gzread(zfile, uncompr, uncomprLen) <> len then + begin + WriteLn('gzread err: ', gzerror(zfile, err)); + Halt(1); + end; + if StrComp(PChar(uncompr), hello) <> 0 then + begin + WriteLn('bad gzread: ', PChar(uncompr)); + Halt(1); + end + else + WriteLn('gzread(): ', PChar(uncompr)); + + pos := gzseek(zfile, -8, SEEK_CUR); + if (pos <> 6) or (gztell(zfile) <> pos) then + begin + WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile)); + Halt(1); + end; + + if gzgetc(zfile) <> ' ' then + begin + WriteLn('gzgetc error'); + Halt(1); + end; + + if gzungetc(' ', zfile) <> ' ' then + begin + WriteLn('gzungetc error'); + Halt(1); + end; + + gzgets(zfile, PChar(uncompr), uncomprLen); + uncomprLen := StrLen(PChar(uncompr)); + if uncomprLen <> 7 then (* " hello!" *) + begin + WriteLn('gzgets err after gzseek: ', gzerror(zfile, err)); + Halt(1); + end; + if StrComp(PChar(uncompr), hello + 6) <> 0 then + begin + WriteLn('bad gzgets after gzseek'); + Halt(1); + end + else + WriteLn('gzgets() after gzseek: ', PChar(uncompr)); + + gzclose(zfile); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with small buffers + *) +{$IFDEF TEST_DEFLATE} +procedure test_deflate(compr: Pointer; comprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; + len: LongInt; +begin + len := StrLen(hello)+1; + + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_in := hello; + c_stream.next_out := compr; + + while (c_stream.total_in <> len) and + (c_stream.total_out < comprLen) do + begin + c_stream.avail_out := 1; { force small buffers } + c_stream.avail_in := 1; + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + end; + + (* Finish the stream, still forcing small buffers: *) + while TRUE do + begin + c_stream.avail_out := 1; + err := deflate(c_stream, Z_FINISH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'deflate'); + end; + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with small buffers + *) +{$IFDEF TEST_INFLATE} +procedure test_inflate(compr: Pointer; comprLen : LongInt; + uncompr: Pointer; uncomprLen : LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := 0; + d_stream.next_out := uncompr; + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + while (d_stream.total_out < uncomprLen) and + (d_stream.total_in < comprLen) do + begin + d_stream.avail_out := 1; (* force small buffers *) + d_stream.avail_in := 1; + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'inflate'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad inflate') + else + WriteLn('inflate(): ', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with large buffers and dynamic change of compression level + *) +{$IFDEF TEST_DEFLATE} +procedure test_large_deflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; +begin + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_BEST_SPEED); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_out := compr; + c_stream.avail_out := Integer(comprLen); + + (* At this point, uncompr is still mostly zeroes, so it should compress + * very well: + *) + c_stream.next_in := uncompr; + c_stream.avail_in := Integer(uncomprLen); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + if c_stream.avail_in <> 0 then + EXIT_ERR('deflate not greedy'); + + (* Feed in already compressed data and switch to no compression: *) + deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); + c_stream.next_in := compr; + c_stream.avail_in := Integer(comprLen div 2); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + + (* Switch back to compressing mode: *) + deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED); + c_stream.next_in := uncompr; + c_stream.avail_in := Integer(uncomprLen); + err := deflate(c_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'deflate'); + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + EXIT_ERR('deflate should report Z_STREAM_END'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with large buffers + *) +{$IFDEF TEST_INFLATE} +procedure test_large_inflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := Integer(comprLen); + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + while TRUE do + begin + d_stream.next_out := uncompr; (* discard the output *) + d_stream.avail_out := Integer(uncomprLen); + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + CHECK_ERR(err, 'large inflate'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then + begin + WriteLn('bad large inflate: ', d_stream.total_out); + Halt(1); + end + else + WriteLn('large_inflate(): OK'); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with full flush + *) +{$IFDEF TEST_FLUSH} +procedure test_flush(compr: Pointer; var comprLen : LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; + len: Integer; +begin + len := StrLen(hello)+1; + + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + c_stream.next_in := hello; + c_stream.next_out := compr; + c_stream.avail_in := 3; + c_stream.avail_out := Integer(comprLen); + err := deflate(c_stream, Z_FULL_FLUSH); + CHECK_ERR(err, 'deflate'); + + Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *) + c_stream.avail_in := len - 3; + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + CHECK_ERR(err, 'deflate'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); + + comprLen := c_stream.total_out; +end; +{$ENDIF} + +(* =========================================================================== + * Test inflateSync() + *) +{$IFDEF TEST_SYNC} +procedure test_sync(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen : LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := 2; (* just read the zlib header *) + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + d_stream.next_out := uncompr; + d_stream.avail_out := Integer(uncomprLen); + + inflate(d_stream, Z_NO_FLUSH); + CHECK_ERR(err, 'inflate'); + + d_stream.avail_in := Integer(comprLen-2); (* read all compressed data *) + err := inflateSync(d_stream); (* but skip the damaged part *) + CHECK_ERR(err, 'inflateSync'); + + err := inflate(d_stream, Z_FINISH); + if err <> Z_DATA_ERROR then + EXIT_ERR('inflate should report DATA_ERROR'); + (* Because of incorrect adler32 *) + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + WriteLn('after inflateSync(): hel', PChar(uncompr)); +end; +{$ENDIF} + +(* =========================================================================== + * Test deflate with preset dictionary + *) +{$IFDEF TEST_DICT} +procedure test_dict_deflate(compr: Pointer; comprLen: LongInt); +var c_stream: z_stream; (* compression stream *) + err: Integer; +begin + c_stream.zalloc := NIL; + c_stream.zfree := NIL; + c_stream.opaque := NIL; + + err := deflateInit(c_stream, Z_BEST_COMPRESSION); + CHECK_ERR(err, 'deflateInit'); + + err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary)); + CHECK_ERR(err, 'deflateSetDictionary'); + + dictId := c_stream.adler; + c_stream.next_out := compr; + c_stream.avail_out := Integer(comprLen); + + c_stream.next_in := hello; + c_stream.avail_in := StrLen(hello)+1; + + err := deflate(c_stream, Z_FINISH); + if err <> Z_STREAM_END then + EXIT_ERR('deflate should report Z_STREAM_END'); + + err := deflateEnd(c_stream); + CHECK_ERR(err, 'deflateEnd'); +end; +{$ENDIF} + +(* =========================================================================== + * Test inflate with a preset dictionary + *) +{$IFDEF TEST_DICT} +procedure test_dict_inflate(compr: Pointer; comprLen: LongInt; + uncompr: Pointer; uncomprLen: LongInt); +var err: Integer; + d_stream: z_stream; (* decompression stream *) +begin + StrCopy(PChar(uncompr), 'garbage'); + + d_stream.zalloc := NIL; + d_stream.zfree := NIL; + d_stream.opaque := NIL; + + d_stream.next_in := compr; + d_stream.avail_in := Integer(comprLen); + + err := inflateInit(d_stream); + CHECK_ERR(err, 'inflateInit'); + + d_stream.next_out := uncompr; + d_stream.avail_out := Integer(uncomprLen); + + while TRUE do + begin + err := inflate(d_stream, Z_NO_FLUSH); + if err = Z_STREAM_END then + break; + if err = Z_NEED_DICT then + begin + if d_stream.adler <> dictId then + EXIT_ERR('unexpected dictionary'); + err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary)); + end; + CHECK_ERR(err, 'inflate with dict'); + end; + + err := inflateEnd(d_stream); + CHECK_ERR(err, 'inflateEnd'); + + if StrComp(PChar(uncompr), hello) <> 0 then + EXIT_ERR('bad inflate with dict') + else + WriteLn('inflate with dictionary: ', PChar(uncompr)); +end; +{$ENDIF} + +var compr, uncompr: Pointer; + comprLen, uncomprLen: LongInt; + +begin + if zlibVersion^ <> ZLIB_VERSION[1] then + EXIT_ERR('Incompatible zlib version'); + + WriteLn('zlib version: ', zlibVersion); + WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags])); + + comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *) + uncomprLen := comprLen; + GetMem(compr, comprLen); + GetMem(uncompr, uncomprLen); + if (compr = NIL) or (uncompr = NIL) then + EXIT_ERR('Out of memory'); + (* compr and uncompr are cleared to avoid reading uninitialized + * data and to ensure that uncompr compresses well. + *) + FillChar(compr^, comprLen, 0); + FillChar(uncompr^, uncomprLen, 0); + + {$IFDEF TEST_COMPRESS} + WriteLn('** Testing compress'); + test_compress(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_GZIO} + WriteLn('** Testing gzio'); + if ParamCount >= 1 then + test_gzio(ParamStr(1), uncompr, uncomprLen) + else + test_gzio(TESTFILE, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_DEFLATE} + WriteLn('** Testing deflate with small buffers'); + test_deflate(compr, comprLen); + {$ENDIF} + {$IFDEF TEST_INFLATE} + WriteLn('** Testing inflate with small buffers'); + test_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_DEFLATE} + WriteLn('** Testing deflate with large buffers'); + test_large_deflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + {$IFDEF TEST_INFLATE} + WriteLn('** Testing inflate with large buffers'); + test_large_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + {$IFDEF TEST_FLUSH} + WriteLn('** Testing deflate with full flush'); + test_flush(compr, comprLen); + {$ENDIF} + {$IFDEF TEST_SYNC} + WriteLn('** Testing inflateSync'); + test_sync(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + comprLen := uncomprLen; + + {$IFDEF TEST_DICT} + WriteLn('** Testing deflate and inflate with preset dictionary'); + test_dict_deflate(compr, comprLen); + test_dict_inflate(compr, comprLen, uncompr, uncomprLen); + {$ENDIF} + + FreeMem(compr, comprLen); + FreeMem(uncompr, uncomprLen); +end. diff --git a/3party/zlib/contrib/pascal/readme.txt b/3party/zlib/contrib/pascal/readme.txt new file mode 100644 index 0000000000..60e87c8a33 --- /dev/null +++ b/3party/zlib/contrib/pascal/readme.txt @@ -0,0 +1,76 @@ + +This directory contains a Pascal (Delphi, Kylix) interface to the +zlib data compression library. + + +Directory listing +================= + +zlibd32.mak makefile for Borland C++ +example.pas usage example of zlib +zlibpas.pas the Pascal interface to zlib +readme.txt this file + + +Compatibility notes +=================== + +- Although the name "zlib" would have been more normal for the + zlibpas unit, this name is already taken by Borland's ZLib unit. + This is somehow unfortunate, because that unit is not a genuine + interface to the full-fledged zlib functionality, but a suite of + class wrappers around zlib streams. Other essential features, + such as checksums, are missing. + It would have been more appropriate for that unit to have a name + like "ZStreams", or something similar. + +- The C and zlib-supplied types int, uInt, long, uLong, etc. are + translated directly into Pascal types of similar sizes (Integer, + LongInt, etc.), to avoid namespace pollution. In particular, + there is no conversion of unsigned int into a Pascal unsigned + integer. The Word type is non-portable and has the same size + (16 bits) both in a 16-bit and in a 32-bit environment, unlike + Integer. Even if there is a 32-bit Cardinal type, there is no + real need for unsigned int in zlib under a 32-bit environment. + +- Except for the callbacks, the zlib function interfaces are + assuming the calling convention normally used in Pascal + (__pascal for DOS and Windows16, __fastcall for Windows32). + Since the cdecl keyword is used, the old Turbo Pascal does + not work with this interface. + +- The gz* function interfaces are not translated, to avoid + interfacing problems with the C runtime library. Besides, + gzprintf(gzFile file, const char *format, ...) + cannot be translated into Pascal. + + +Legal issues +============ + +The zlibpas interface is: + Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler. + Copyright (C) 1998 by Bob Dellaca. + Copyright (C) 2003 by Cosmin Truta. + +The example program is: + Copyright (C) 1995-2003 by Jean-loup Gailly. + Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali. + Copyright (C) 2003 by Cosmin Truta. + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + diff --git a/3party/zlib/contrib/pascal/zlibd32.mak b/3party/zlib/contrib/pascal/zlibd32.mak new file mode 100644 index 0000000000..0d0699a69a --- /dev/null +++ b/3party/zlib/contrib/pascal/zlibd32.mak @@ -0,0 +1,99 @@ +# Makefile for zlib +# For use with Delphi and C++ Builder under Win32 +# Updated for zlib 1.2.x by Cosmin Truta + +# ------------ Borland C++ ------------ + +# This project uses the Delphi (fastcall/register) calling convention: +LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl + +CC = bcc32 +LD = bcc32 +AR = tlib +# do not use "-pr" in CFLAGS +CFLAGS = -a -d -k- -O2 $(LOC) +LDFLAGS = + + +# variables +ZLIB_LIB = zlib.lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj +OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# For the sake of the old Borland make, +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + + +# cleanup +clean: + -del *.obj + -del *.exe + -del *.lib + -del *.tds + -del zlib.bak + -del foo.gz + diff --git a/3party/zlib/contrib/pascal/zlibpas.pas b/3party/zlib/contrib/pascal/zlibpas.pas new file mode 100644 index 0000000000..637ae3a3f8 --- /dev/null +++ b/3party/zlib/contrib/pascal/zlibpas.pas @@ -0,0 +1,236 @@ +(* zlibpas -- Pascal interface to the zlib data compression library + * + * Copyright (C) 2003 Cosmin Truta. + * Derived from original sources by Bob Dellaca. + * For conditions of distribution and use, see copyright notice in readme.txt + *) + +unit zlibpas; + +interface + +const + ZLIB_VERSION = '1.2.5'; + +type + alloc_func = function(opaque: Pointer; items, size: Integer): Pointer; + cdecl; + free_func = procedure(opaque, address: Pointer); + cdecl; + + in_func = function(opaque: Pointer; var buf: PByte): Integer; + cdecl; + out_func = function(opaque: Pointer; buf: PByte; size: Integer): Integer; + cdecl; + + z_streamp = ^z_stream; + z_stream = packed record + next_in: PChar; (* next input byte *) + avail_in: Integer; (* number of bytes available at next_in *) + total_in: LongInt; (* total nb of input bytes read so far *) + + next_out: PChar; (* next output byte should be put there *) + avail_out: Integer; (* remaining free space at next_out *) + total_out: LongInt; (* total nb of bytes output so far *) + + msg: PChar; (* last error message, NULL if no error *) + state: Pointer; (* not visible by applications *) + + zalloc: alloc_func; (* used to allocate the internal state *) + zfree: free_func; (* used to free the internal state *) + opaque: Pointer; (* private data object passed to zalloc and zfree *) + + data_type: Integer; (* best guess about the data type: ascii or binary *) + adler: LongInt; (* adler32 value of the uncompressed data *) + reserved: LongInt; (* reserved for future use *) + end; + +(* constants *) +const + Z_NO_FLUSH = 0; + Z_PARTIAL_FLUSH = 1; + Z_SYNC_FLUSH = 2; + Z_FULL_FLUSH = 3; + Z_FINISH = 4; + + Z_OK = 0; + Z_STREAM_END = 1; + Z_NEED_DICT = 2; + Z_ERRNO = -1; + Z_STREAM_ERROR = -2; + Z_DATA_ERROR = -3; + Z_MEM_ERROR = -4; + Z_BUF_ERROR = -5; + Z_VERSION_ERROR = -6; + + Z_NO_COMPRESSION = 0; + Z_BEST_SPEED = 1; + Z_BEST_COMPRESSION = 9; + Z_DEFAULT_COMPRESSION = -1; + + Z_FILTERED = 1; + Z_HUFFMAN_ONLY = 2; + Z_RLE = 3; + Z_DEFAULT_STRATEGY = 0; + + Z_BINARY = 0; + Z_ASCII = 1; + Z_UNKNOWN = 2; + + Z_DEFLATED = 8; + +(* basic functions *) +function zlibVersion: PChar; +function deflateInit(var strm: z_stream; level: Integer): Integer; +function deflate(var strm: z_stream; flush: Integer): Integer; +function deflateEnd(var strm: z_stream): Integer; +function inflateInit(var strm: z_stream): Integer; +function inflate(var strm: z_stream; flush: Integer): Integer; +function inflateEnd(var strm: z_stream): Integer; + +(* advanced functions *) +function deflateInit2(var strm: z_stream; level, method, windowBits, + memLevel, strategy: Integer): Integer; +function deflateSetDictionary(var strm: z_stream; const dictionary: PChar; + dictLength: Integer): Integer; +function deflateCopy(var dest, source: z_stream): Integer; +function deflateReset(var strm: z_stream): Integer; +function deflateParams(var strm: z_stream; level, strategy: Integer): Integer; +function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt; +function deflatePrime(var strm: z_stream; bits, value: Integer): Integer; +function inflateInit2(var strm: z_stream; windowBits: Integer): Integer; +function inflateSetDictionary(var strm: z_stream; const dictionary: PChar; + dictLength: Integer): Integer; +function inflateSync(var strm: z_stream): Integer; +function inflateCopy(var dest, source: z_stream): Integer; +function inflateReset(var strm: z_stream): Integer; +function inflateBackInit(var strm: z_stream; + windowBits: Integer; window: PChar): Integer; +function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer; + out_fn: out_func; out_desc: Pointer): Integer; +function inflateBackEnd(var strm: z_stream): Integer; +function zlibCompileFlags: LongInt; + +(* utility functions *) +function compress(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt): Integer; +function compress2(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt; + level: Integer): Integer; +function compressBound(sourceLen: LongInt): LongInt; +function uncompress(dest: PChar; var destLen: LongInt; + const source: PChar; sourceLen: LongInt): Integer; + +(* checksum functions *) +function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt; +function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt; + +(* various hacks, don't look :) *) +function deflateInit_(var strm: z_stream; level: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateInit_(var strm: z_stream; const version: PChar; + stream_size: Integer): Integer; +function deflateInit2_(var strm: z_stream; + level, method, windowBits, memLevel, strategy: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateInit2_(var strm: z_stream; windowBits: Integer; + const version: PChar; stream_size: Integer): Integer; +function inflateBackInit_(var strm: z_stream; + windowBits: Integer; window: PChar; + const version: PChar; stream_size: Integer): Integer; + + +implementation + +{$L adler32.obj} +{$L compress.obj} +{$L crc32.obj} +{$L deflate.obj} +{$L infback.obj} +{$L inffast.obj} +{$L inflate.obj} +{$L inftrees.obj} +{$L trees.obj} +{$L uncompr.obj} +{$L zutil.obj} + +function adler32; external; +function compress; external; +function compress2; external; +function compressBound; external; +function crc32; external; +function deflate; external; +function deflateBound; external; +function deflateCopy; external; +function deflateEnd; external; +function deflateInit_; external; +function deflateInit2_; external; +function deflateParams; external; +function deflatePrime; external; +function deflateReset; external; +function deflateSetDictionary; external; +function inflate; external; +function inflateBack; external; +function inflateBackEnd; external; +function inflateBackInit_; external; +function inflateCopy; external; +function inflateEnd; external; +function inflateInit_; external; +function inflateInit2_; external; +function inflateReset; external; +function inflateSetDictionary; external; +function inflateSync; external; +function uncompress; external; +function zlibCompileFlags; external; +function zlibVersion; external; + +function deflateInit(var strm: z_stream; level: Integer): Integer; +begin + Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream)); +end; + +function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel, + strategy: Integer): Integer; +begin + Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy, + ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateInit(var strm: z_stream): Integer; +begin + Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateInit2(var strm: z_stream; windowBits: Integer): Integer; +begin + Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream)); +end; + +function inflateBackInit(var strm: z_stream; + windowBits: Integer; window: PChar): Integer; +begin + Result := inflateBackInit_(strm, windowBits, window, + ZLIB_VERSION, sizeof(z_stream)); +end; + +function _malloc(Size: Integer): Pointer; cdecl; +begin + GetMem(Result, Size); +end; + +procedure _free(Block: Pointer); cdecl; +begin + FreeMem(Block); +end; + +procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl; +begin + FillChar(P^, count, B); +end; + +procedure _memcpy(dest, source: Pointer; count: Integer); cdecl; +begin + Move(source^, dest^, count); +end; + +end. diff --git a/3party/zlib/contrib/puff/README b/3party/zlib/contrib/puff/README new file mode 100644 index 0000000000..bbc4cb595e --- /dev/null +++ b/3party/zlib/contrib/puff/README @@ -0,0 +1,63 @@ +Puff -- A Simple Inflate +3 Mar 2003 +Mark Adler +madler@alumni.caltech.edu + +What this is -- + +puff.c provides the routine puff() to decompress the deflate data format. It +does so more slowly than zlib, but the code is about one-fifth the size of the +inflate code in zlib, and written to be very easy to read. + +Why I wrote this -- + +puff.c was written to document the deflate format unambiguously, by virtue of +being working C code. It is meant to supplement RFC 1951, which formally +describes the deflate format. I have received many questions on details of the +deflate format, and I hope that reading this code will answer those questions. +puff.c is heavily commented with details of the deflate format, especially +those little nooks and cranies of the format that might not be obvious from a +specification. + +puff.c may also be useful in applications where code size or memory usage is a +very limited resource, and speed is not as important. + +How to use it -- + +Well, most likely you should just be reading puff.c and using zlib for actual +applications, but if you must ... + +Include puff.h in your code, which provides this prototype: + +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen); /* amount of input available */ + +Then you can call puff() to decompress a deflate stream that is in memory in +its entirety at source, to a sufficiently sized block of memory for the +decompressed data at dest. puff() is the only external symbol in puff.c The +only C library functions that puff.c needs are setjmp() and longjmp(), which +are used to simplify error checking in the code to improve readabilty. puff.c +does no memory allocation, and uses less than 2K bytes off of the stack. + +If destlen is not enough space for the uncompressed data, then inflate will +return an error without writing more than destlen bytes. Note that this means +that in order to decompress the deflate data successfully, you need to know +the size of the uncompressed data ahead of time. + +If needed, puff() can determine the size of the uncompressed data with no +output space. This is done by passing dest equal to (unsigned char *)0. Then +the initial value of *destlen is ignored and *destlen is set to the length of +the uncompressed data. So if the size of the uncompressed data is not known, +then two passes of puff() can be used--first to determine the size, and second +to do the actual inflation after allocating the appropriate memory. Not +pretty, but it works. (This is one of the reasons you should be using zlib.) + +The deflate format is self-terminating. If the deflate stream does not end +in *sourcelen bytes, puff() will return an error without reading at or past +endsource. + +On return, *sourcelen is updated to the amount of input data consumed, and +*destlen is updated to the size of the uncompressed data. See the comments +in puff.c for the possible return codes for puff(). diff --git a/3party/zlib/contrib/puff/puff.c b/3party/zlib/contrib/puff/puff.c new file mode 100644 index 0000000000..650694e9ed --- /dev/null +++ b/3party/zlib/contrib/puff/puff.c @@ -0,0 +1,955 @@ +/* + * puff.c + * Copyright (C) 2002-2010 Mark Adler + * For conditions of distribution and use, see copyright notice in puff.h + * version 2.1, 4 Apr 2010 + * + * puff.c is a simple inflate written to be an unambiguous way to specify the + * deflate format. It is not written for speed but rather simplicity. As a + * side benefit, this code might actually be useful when small code is more + * important than speed, such as bootstrap applications. For typical deflate + * data, zlib's inflate() is about four times as fast as puff(). zlib's + * inflate compiles to around 20K on my machine, whereas puff.c compiles to + * around 4K on my machine (a PowerPC using GNU cc). If the faster decode() + * function here is used, then puff() is only twice as slow as zlib's + * inflate(). + * + * All dynamically allocated memory comes from the stack. The stack required + * is less than 2K bytes. This code is compatible with 16-bit int's and + * assumes that long's are at least 32 bits. puff.c uses the short data type, + * assumed to be 16 bits, for arrays in order to to conserve memory. The code + * works whether integers are stored big endian or little endian. + * + * In the comments below are "Format notes" that describe the inflate process + * and document some of the less obvious aspects of the format. This source + * code is meant to supplement RFC 1951, which formally describes the deflate + * format: + * + * http://www.zlib.org/rfc-deflate.html + */ + +/* + * Change history: + * + * 1.0 10 Feb 2002 - First version + * 1.1 17 Feb 2002 - Clarifications of some comments and notes + * - Update puff() dest and source pointers on negative + * errors to facilitate debugging deflators + * - Remove longest from struct huffman -- not needed + * - Simplify offs[] index in construct() + * - Add input size and checking, using longjmp() to + * maintain easy readability + * - Use short data type for large arrays + * - Use pointers instead of long to specify source and + * destination sizes to avoid arbitrary 4 GB limits + * 1.2 17 Mar 2002 - Add faster version of decode(), doubles speed (!), + * but leave simple version for readabilty + * - Make sure invalid distances detected if pointers + * are 16 bits + * - Fix fixed codes table error + * - Provide a scanning mode for determining size of + * uncompressed data + * 1.3 20 Mar 2002 - Go back to lengths for puff() parameters [Jean-loup] + * - Add a puff.h file for the interface + * - Add braces in puff() for else do [Jean-loup] + * - Use indexes instead of pointers for readability + * 1.4 31 Mar 2002 - Simplify construct() code set check + * - Fix some comments + * - Add FIXLCODES #define + * 1.5 6 Apr 2002 - Minor comment fixes + * 1.6 7 Aug 2002 - Minor format changes + * 1.7 3 Mar 2003 - Added test code for distribution + * - Added zlib-like license + * 1.8 9 Jan 2004 - Added some comments on no distance codes case + * 1.9 21 Feb 2008 - Fix bug on 16-bit integer architectures [Pohland] + * - Catch missing end-of-block symbol error + * 2.0 25 Jul 2008 - Add #define to permit distance too far back + * - Add option in TEST code for puff to write the data + * - Add option in TEST code to skip input bytes + * - Allow TEST code to read from piped stdin + * 2.1 4 Apr 2010 - Avoid variable initialization for happier compilers + * - Avoid unsigned comparisons for even happier compilers + */ + +#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */ +#include "puff.h" /* prototype for puff() */ + +#define local static /* for local function definitions */ +#define NIL ((unsigned char *)0) /* for no output option */ + +/* + * Maximums for allocations and loops. It is not useful to change these -- + * they are fixed by the deflate format. + */ +#define MAXBITS 15 /* maximum bits in a code */ +#define MAXLCODES 286 /* maximum number of literal/length codes */ +#define MAXDCODES 30 /* maximum number of distance codes */ +#define MAXCODES (MAXLCODES+MAXDCODES) /* maximum codes lengths to read */ +#define FIXLCODES 288 /* number of fixed literal/length codes */ + +/* input and output state */ +struct state { + /* output state */ + unsigned char *out; /* output buffer */ + unsigned long outlen; /* available space at out */ + unsigned long outcnt; /* bytes written to out so far */ + + /* input state */ + unsigned char *in; /* input buffer */ + unsigned long inlen; /* available input at in */ + unsigned long incnt; /* bytes read so far */ + int bitbuf; /* bit buffer */ + int bitcnt; /* number of bits in bit buffer */ + + /* input limit error return state for bits() and decode() */ + jmp_buf env; +}; + +/* + * Return need bits from the input stream. This always leaves less than + * eight bits in the buffer. bits() works properly for need == 0. + * + * Format notes: + * + * - Bits are stored in bytes from the least significant bit to the most + * significant bit. Therefore bits are dropped from the bottom of the bit + * buffer, using shift right, and new bytes are appended to the top of the + * bit buffer, using shift left. + */ +local int bits(struct state *s, int need) +{ + long val; /* bit accumulator (can use up to 20 bits) */ + + /* load at least need bits into val */ + val = s->bitbuf; + while (s->bitcnt < need) { + if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */ + val |= (long)(s->in[s->incnt++]) << s->bitcnt; /* load eight bits */ + s->bitcnt += 8; + } + + /* drop need bits and update buffer, always zero to seven bits left */ + s->bitbuf = (int)(val >> need); + s->bitcnt -= need; + + /* return need bits, zeroing the bits above that */ + return (int)(val & ((1L << need) - 1)); +} + +/* + * Process a stored block. + * + * Format notes: + * + * - After the two-bit stored block type (00), the stored block length and + * stored bytes are byte-aligned for fast copying. Therefore any leftover + * bits in the byte that has the last bit of the type, as many as seven, are + * discarded. The value of the discarded bits are not defined and should not + * be checked against any expectation. + * + * - The second inverted copy of the stored block length does not have to be + * checked, but it's probably a good idea to do so anyway. + * + * - A stored block can have zero length. This is sometimes used to byte-align + * subsets of the compressed data for random access or partial recovery. + */ +local int stored(struct state *s) +{ + unsigned len; /* length of stored block */ + + /* discard leftover bits from current byte (assumes s->bitcnt < 8) */ + s->bitbuf = 0; + s->bitcnt = 0; + + /* get length and check against its one's complement */ + if (s->incnt + 4 > s->inlen) return 2; /* not enough input */ + len = s->in[s->incnt++]; + len |= s->in[s->incnt++] << 8; + if (s->in[s->incnt++] != (~len & 0xff) || + s->in[s->incnt++] != ((~len >> 8) & 0xff)) + return -2; /* didn't match complement! */ + + /* copy len bytes from in to out */ + if (s->incnt + len > s->inlen) return 2; /* not enough input */ + if (s->out != NIL) { + if (s->outcnt + len > s->outlen) + return 1; /* not enough output space */ + while (len--) + s->out[s->outcnt++] = s->in[s->incnt++]; + } + else { /* just scanning */ + s->outcnt += len; + s->incnt += len; + } + + /* done with a valid stored block */ + return 0; +} + +/* + * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of + * each length, which for a canonical code are stepped through in order. + * symbol[] are the symbol values in canonical order, where the number of + * entries is the sum of the counts in count[]. The decoding process can be + * seen in the function decode() below. + */ +struct huffman { + short *count; /* number of symbols of each length */ + short *symbol; /* canonically ordered symbols */ +}; + +/* + * Decode a code from the stream s using huffman table h. Return the symbol or + * a negative value if there is an error. If all of the lengths are zero, i.e. + * an empty code, or if the code is incomplete and an invalid code is received, + * then -10 is returned after reading MAXBITS bits. + * + * Format notes: + * + * - The codes as stored in the compressed data are bit-reversed relative to + * a simple integer ordering of codes of the same lengths. Hence below the + * bits are pulled from the compressed data one at a time and used to + * build the code value reversed from what is in the stream in order to + * permit simple integer comparisons for decoding. A table-based decoding + * scheme (as used in zlib) does not need to do this reversal. + * + * - The first code for the shortest length is all zeros. Subsequent codes of + * the same length are simply integer increments of the previous code. When + * moving up a length, a zero bit is appended to the code. For a complete + * code, the last code of the longest length will be all ones. + * + * - Incomplete codes are handled by this decoder, since they are permitted + * in the deflate format. See the format notes for fixed() and dynamic(). + */ +#ifdef SLOW +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + + code = first = index = 0; + for (len = 1; len <= MAXBITS; len++) { + code |= bits(s, 1); /* get next bit */ + count = h->count[len]; + if (code - count < first) /* if length len, return symbol */ + return h->symbol[index + (code - first)]; + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + } + return -10; /* ran out of codes */ +} + +/* + * A faster version of decode() for real applications of this code. It's not + * as readable, but it makes puff() twice as fast. And it only makes the code + * a few percent larger. + */ +#else /* !SLOW */ +local int decode(struct state *s, struct huffman *h) +{ + int len; /* current number of bits in code */ + int code; /* len bits being decoded */ + int first; /* first code of length len */ + int count; /* number of codes of length len */ + int index; /* index of first code of length len in symbol table */ + int bitbuf; /* bits from stream */ + int left; /* bits left in next or left to process */ + short *next; /* next number of codes */ + + bitbuf = s->bitbuf; + left = s->bitcnt; + code = first = index = 0; + len = 1; + next = h->count + 1; + while (1) { + while (left--) { + code |= bitbuf & 1; + bitbuf >>= 1; + count = *next++; + if (code - count < first) { /* if length len, return symbol */ + s->bitbuf = bitbuf; + s->bitcnt = (s->bitcnt - len) & 7; + return h->symbol[index + (code - first)]; + } + index += count; /* else update for next length */ + first += count; + first <<= 1; + code <<= 1; + len++; + } + left = (MAXBITS+1) - len; + if (left == 0) break; + if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */ + bitbuf = s->in[s->incnt++]; + if (left > 8) left = 8; + } + return -10; /* ran out of codes */ +} +#endif /* SLOW */ + +/* + * Given the list of code lengths length[0..n-1] representing a canonical + * Huffman code for n symbols, construct the tables required to decode those + * codes. Those tables are the number of codes of each length, and the symbols + * sorted by length, retaining their original order within each length. The + * return value is zero for a complete code set, negative for an over- + * subscribed code set, and positive for an incomplete code set. The tables + * can be used if the return value is zero or positive, but they cannot be used + * if the return value is negative. If the return value is zero, it is not + * possible for decode() using that table to return an error--any stream of + * enough bits will resolve to a symbol. If the return value is positive, then + * it is possible for decode() using that table to return an error for received + * codes past the end of the incomplete lengths. + * + * Not used by decode(), but used for error checking, h->count[0] is the number + * of the n symbols not in the code. So n - h->count[0] is the number of + * codes. This is useful for checking for incomplete codes that have more than + * one symbol, which is an error in a dynamic block. + * + * Assumption: for all i in 0..n-1, 0 <= length[i] <= MAXBITS + * This is assured by the construction of the length arrays in dynamic() and + * fixed() and is not verified by construct(). + * + * Format notes: + * + * - Permitted and expected examples of incomplete codes are one of the fixed + * codes and any code with a single symbol which in deflate is coded as one + * bit instead of zero bits. See the format notes for fixed() and dynamic(). + * + * - Within a given code length, the symbols are kept in ascending order for + * the code bits definition. + */ +local int construct(struct huffman *h, short *length, int n) +{ + int symbol; /* current symbol when stepping through length[] */ + int len; /* current length when stepping through h->count[] */ + int left; /* number of possible codes left of current length */ + short offs[MAXBITS+1]; /* offsets in symbol table for each length */ + + /* count number of codes of each length */ + for (len = 0; len <= MAXBITS; len++) + h->count[len] = 0; + for (symbol = 0; symbol < n; symbol++) + (h->count[length[symbol]])++; /* assumes lengths are within bounds */ + if (h->count[0] == n) /* no codes! */ + return 0; /* complete, but decode() will fail */ + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; /* one possible code of zero length */ + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; /* one more bit, double codes left */ + left -= h->count[len]; /* deduct count from possible codes */ + if (left < 0) return left; /* over-subscribed--return negative */ + } /* left > 0 means incomplete */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + h->count[len]; + + /* + * put symbols in table sorted by length, by symbol order within each + * length + */ + for (symbol = 0; symbol < n; symbol++) + if (length[symbol] != 0) + h->symbol[offs[length[symbol]]++] = symbol; + + /* return zero for complete set, positive for incomplete set */ + return left; +} + +/* + * Decode literal/length and distance codes until an end-of-block code. + * + * Format notes: + * + * - Compressed data that is after the block type if fixed or after the code + * description if dynamic is a combination of literals and length/distance + * pairs terminated by and end-of-block code. Literals are simply Huffman + * coded bytes. A length/distance pair is a coded length followed by a + * coded distance to represent a string that occurs earlier in the + * uncompressed data that occurs again at the current location. + * + * - Literals, lengths, and the end-of-block code are combined into a single + * code of up to 286 symbols. They are 256 literals (0..255), 29 length + * symbols (257..285), and the end-of-block symbol (256). + * + * - There are 256 possible lengths (3..258), and so 29 symbols are not enough + * to represent all of those. Lengths 3..10 and 258 are in fact represented + * by just a length symbol. Lengths 11..257 are represented as a symbol and + * some number of extra bits that are added as an integer to the base length + * of the length symbol. The number of extra bits is determined by the base + * length symbol. These are in the static arrays below, lens[] for the base + * lengths and lext[] for the corresponding number of extra bits. + * + * - The reason that 258 gets its own symbol is that the longest length is used + * often in highly redundant files. Note that 258 can also be coded as the + * base value 227 plus the maximum extra value of 31. While a good deflate + * should never do this, it is not an error, and should be decoded properly. + * + * - If a length is decoded, including its extra bits if any, then it is + * followed a distance code. There are up to 30 distance symbols. Again + * there are many more possible distances (1..32768), so extra bits are added + * to a base value represented by the symbol. The distances 1..4 get their + * own symbol, but the rest require extra bits. The base distances and + * corresponding number of extra bits are below in the static arrays dist[] + * and dext[]. + * + * - Literal bytes are simply written to the output. A length/distance pair is + * an instruction to copy previously uncompressed bytes to the output. The + * copy is from distance bytes back in the output stream, copying for length + * bytes. + * + * - Distances pointing before the beginning of the output data are not + * permitted. + * + * - Overlapped copies, where the length is greater than the distance, are + * allowed and common. For example, a distance of one and a length of 258 + * simply copies the last byte 258 times. A distance of four and a length of + * twelve copies the last four bytes three times. A simple forward copy + * ignoring whether the length is greater than the distance or not implements + * this correctly. You should not use memcpy() since its behavior is not + * defined for overlapped arrays. You should not use memmove() or bcopy() + * since though their behavior -is- defined for overlapping arrays, it is + * defined to do the wrong thing in this case. + */ +local int codes(struct state *s, + struct huffman *lencode, + struct huffman *distcode) +{ + int symbol; /* decoded symbol */ + int len; /* length for copy */ + unsigned dist; /* distance for copy */ + static const short lens[29] = { /* Size base for length codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; + static const short lext[29] = { /* Extra bits for length codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; + static const short dists[30] = { /* Offset base for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; + static const short dext[30] = { /* Extra bits for distance codes 0..29 */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + + /* decode literals and length/distance pairs */ + do { + symbol = decode(s, lencode); + if (symbol < 0) return symbol; /* invalid symbol */ + if (symbol < 256) { /* literal: symbol is the byte */ + /* write out the literal */ + if (s->out != NIL) { + if (s->outcnt == s->outlen) return 1; + s->out[s->outcnt] = symbol; + } + s->outcnt++; + } + else if (symbol > 256) { /* length */ + /* get and compute length */ + symbol -= 257; + if (symbol >= 29) return -10; /* invalid fixed code */ + len = lens[symbol] + bits(s, lext[symbol]); + + /* get and check distance */ + symbol = decode(s, distcode); + if (symbol < 0) return symbol; /* invalid symbol */ + dist = dists[symbol] + bits(s, dext[symbol]); +#ifndef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + if (dist > s->outcnt) + return -11; /* distance too far back */ +#endif + + /* copy length bytes from distance bytes back */ + if (s->out != NIL) { + if (s->outcnt + len > s->outlen) return 1; + while (len--) { + s->out[s->outcnt] = +#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR + dist > s->outcnt ? 0 : +#endif + s->out[s->outcnt - dist]; + s->outcnt++; + } + } + else + s->outcnt += len; + } + } while (symbol != 256); /* end of block symbol */ + + /* done with a valid fixed or dynamic block */ + return 0; +} + +/* + * Process a fixed codes block. + * + * Format notes: + * + * - This block type can be useful for compressing small amounts of data for + * which the size of the code descriptions in a dynamic block exceeds the + * benefit of custom codes for that block. For fixed codes, no bits are + * spent on code descriptions. Instead the code lengths for literal/length + * codes and distance codes are fixed. The specific lengths for each symbol + * can be seen in the "for" loops below. + * + * - The literal/length code is complete, but has two symbols that are invalid + * and should result in an error if received. This cannot be implemented + * simply as an incomplete code since those two symbols are in the "middle" + * of the code. They are eight bits long and the longest literal/length\ + * code is nine bits. Therefore the code must be constructed with those + * symbols, and the invalid symbols must be detected after decoding. + * + * - The fixed distance codes also have two invalid symbols that should result + * in an error if received. Since all of the distance codes are the same + * length, this can be implemented as an incomplete code. Then the invalid + * codes are detected while decoding. + */ +local int fixed(struct state *s) +{ + static int virgin = 1; + static short lencnt[MAXBITS+1], lensym[FIXLCODES]; + static short distcnt[MAXBITS+1], distsym[MAXDCODES]; + static struct huffman lencode, distcode; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + int symbol; + short lengths[FIXLCODES]; + + /* literal/length table */ + for (symbol = 0; symbol < 144; symbol++) + lengths[symbol] = 8; + for (; symbol < 256; symbol++) + lengths[symbol] = 9; + for (; symbol < 280; symbol++) + lengths[symbol] = 7; + for (; symbol < FIXLCODES; symbol++) + lengths[symbol] = 8; + construct(&lencode, lengths, FIXLCODES); + + /* distance table */ + for (symbol = 0; symbol < MAXDCODES; symbol++) + lengths[symbol] = 5; + construct(&distcode, lengths, MAXDCODES); + + /* construct lencode and distcode */ + lencode.count = lencnt; + lencode.symbol = lensym; + distcode.count = distcnt; + distcode.symbol = distsym; + + /* do this just once */ + virgin = 0; + } + + /* decode data until end-of-block code */ + return codes(s, &lencode, &distcode); +} + +/* + * Process a dynamic codes block. + * + * Format notes: + * + * - A dynamic block starts with a description of the literal/length and + * distance codes for that block. New dynamic blocks allow the compressor to + * rapidly adapt to changing data with new codes optimized for that data. + * + * - The codes used by the deflate format are "canonical", which means that + * the actual bits of the codes are generated in an unambiguous way simply + * from the number of bits in each code. Therefore the code descriptions + * are simply a list of code lengths for each symbol. + * + * - The code lengths are stored in order for the symbols, so lengths are + * provided for each of the literal/length symbols, and for each of the + * distance symbols. + * + * - If a symbol is not used in the block, this is represented by a zero as + * as the code length. This does not mean a zero-length code, but rather + * that no code should be created for this symbol. There is no way in the + * deflate format to represent a zero-length code. + * + * - The maximum number of bits in a code is 15, so the possible lengths for + * any code are 1..15. + * + * - The fact that a length of zero is not permitted for a code has an + * interesting consequence. Normally if only one symbol is used for a given + * code, then in fact that code could be represented with zero bits. However + * in deflate, that code has to be at least one bit. So for example, if + * only a single distance base symbol appears in a block, then it will be + * represented by a single code of length one, in particular one 0 bit. This + * is an incomplete code, since if a 1 bit is received, it has no meaning, + * and should result in an error. So incomplete distance codes of one symbol + * should be permitted, and the receipt of invalid codes should be handled. + * + * - It is also possible to have a single literal/length code, but that code + * must be the end-of-block code, since every dynamic block has one. This + * is not the most efficient way to create an empty block (an empty fixed + * block is fewer bits), but it is allowed by the format. So incomplete + * literal/length codes of one symbol should also be permitted. + * + * - If there are only literal codes and no lengths, then there are no distance + * codes. This is represented by one distance code with zero bits. + * + * - The list of up to 286 length/literal lengths and up to 30 distance lengths + * are themselves compressed using Huffman codes and run-length encoding. In + * the list of code lengths, a 0 symbol means no code, a 1..15 symbol means + * that length, and the symbols 16, 17, and 18 are run-length instructions. + * Each of 16, 17, and 18 are follwed by extra bits to define the length of + * the run. 16 copies the last length 3 to 6 times. 17 represents 3 to 10 + * zero lengths, and 18 represents 11 to 138 zero lengths. Unused symbols + * are common, hence the special coding for zero lengths. + * + * - The symbols for 0..18 are Huffman coded, and so that code must be + * described first. This is simply a sequence of up to 19 three-bit values + * representing no code (0) or the code length for that symbol (1..7). + * + * - A dynamic block starts with three fixed-size counts from which is computed + * the number of literal/length code lengths, the number of distance code + * lengths, and the number of code length code lengths (ok, you come up with + * a better name!) in the code descriptions. For the literal/length and + * distance codes, lengths after those provided are considered zero, i.e. no + * code. The code length code lengths are received in a permuted order (see + * the order[] array below) to make a short code length code length list more + * likely. As it turns out, very short and very long codes are less likely + * to be seen in a dynamic code description, hence what may appear initially + * to be a peculiar ordering. + * + * - Given the number of literal/length code lengths (nlen) and distance code + * lengths (ndist), then they are treated as one long list of nlen + ndist + * code lengths. Therefore run-length coding can and often does cross the + * boundary between the two sets of lengths. + * + * - So to summarize, the code description at the start of a dynamic block is + * three counts for the number of code lengths for the literal/length codes, + * the distance codes, and the code length codes. This is followed by the + * code length code lengths, three bits each. This is used to construct the + * code length code which is used to read the remainder of the lengths. Then + * the literal/length code lengths and distance lengths are read as a single + * set of lengths using the code length codes. Codes are constructed from + * the resulting two sets of lengths, and then finally you can start + * decoding actual compressed data in the block. + * + * - For reference, a "typical" size for the code description in a dynamic + * block is around 80 bytes. + */ +local int dynamic(struct state *s) +{ + int nlen, ndist, ncode; /* number of lengths in descriptor */ + int index; /* index of lengths[] */ + int err; /* construct() return value */ + short lengths[MAXCODES]; /* descriptor code lengths */ + short lencnt[MAXBITS+1], lensym[MAXLCODES]; /* lencode memory */ + short distcnt[MAXBITS+1], distsym[MAXDCODES]; /* distcode memory */ + struct huffman lencode, distcode; /* length and distance codes */ + static const short order[19] = /* permutation of code length codes */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + /* construct lencode and distcode */ + lencode.count = lencnt; + lencode.symbol = lensym; + distcode.count = distcnt; + distcode.symbol = distsym; + + /* get number of lengths in each table, check lengths */ + nlen = bits(s, 5) + 257; + ndist = bits(s, 5) + 1; + ncode = bits(s, 4) + 4; + if (nlen > MAXLCODES || ndist > MAXDCODES) + return -3; /* bad counts */ + + /* read code length code lengths (really), missing lengths are zero */ + for (index = 0; index < ncode; index++) + lengths[order[index]] = bits(s, 3); + for (; index < 19; index++) + lengths[order[index]] = 0; + + /* build huffman table for code lengths codes (use lencode temporarily) */ + err = construct(&lencode, lengths, 19); + if (err != 0) return -4; /* require complete code set here */ + + /* read length/literal and distance code length tables */ + index = 0; + while (index < nlen + ndist) { + int symbol; /* decoded value */ + int len; /* last length to repeat */ + + symbol = decode(s, &lencode); + if (symbol < 16) /* length in 0..15 */ + lengths[index++] = symbol; + else { /* repeat instruction */ + len = 0; /* assume repeating zeros */ + if (symbol == 16) { /* repeat last length 3..6 times */ + if (index == 0) return -5; /* no last length! */ + len = lengths[index - 1]; /* last length */ + symbol = 3 + bits(s, 2); + } + else if (symbol == 17) /* repeat zero 3..10 times */ + symbol = 3 + bits(s, 3); + else /* == 18, repeat zero 11..138 times */ + symbol = 11 + bits(s, 7); + if (index + symbol > nlen + ndist) + return -6; /* too many lengths! */ + while (symbol--) /* repeat last or zero symbol times */ + lengths[index++] = len; + } + } + + /* check for end-of-block code -- there better be one! */ + if (lengths[256] == 0) + return -9; + + /* build huffman table for literal/length codes */ + err = construct(&lencode, lengths, nlen); + if (err < 0 || (err > 0 && nlen - lencode.count[0] != 1)) + return -7; /* only allow incomplete codes if just one code */ + + /* build huffman table for distance codes */ + err = construct(&distcode, lengths + nlen, ndist); + if (err < 0 || (err > 0 && ndist - distcode.count[0] != 1)) + return -8; /* only allow incomplete codes if just one code */ + + /* decode data until end-of-block code */ + return codes(s, &lencode, &distcode); +} + +/* + * Inflate source to dest. On return, destlen and sourcelen are updated to the + * size of the uncompressed data and the size of the deflate data respectively. + * On success, the return value of puff() is zero. If there is an error in the + * source data, i.e. it is not in the deflate format, then a negative value is + * returned. If there is not enough input available or there is not enough + * output space, then a positive error is returned. In that case, destlen and + * sourcelen are not updated to facilitate retrying from the beginning with the + * provision of more input data or more output space. In the case of invalid + * inflate data (a negative error), the dest and source pointers are updated to + * facilitate the debugging of deflators. + * + * puff() also has a mode to determine the size of the uncompressed output with + * no output written. For this dest must be (unsigned char *)0. In this case, + * the input value of *destlen is ignored, and on return *destlen is set to the + * size of the uncompressed output. + * + * The return codes are: + * + * 2: available inflate data did not terminate + * 1: output space exhausted before completing inflate + * 0: successful inflate + * -1: invalid block type (type == 3) + * -2: stored block length did not match one's complement + * -3: dynamic block code description: too many length or distance codes + * -4: dynamic block code description: code lengths codes incomplete + * -5: dynamic block code description: repeat lengths with no first length + * -6: dynamic block code description: repeat more than specified lengths + * -7: dynamic block code description: invalid literal/length code lengths + * -8: dynamic block code description: invalid distance code lengths + * -9: dynamic block code description: missing end-of-block code + * -10: invalid literal/length or distance code in fixed or dynamic block + * -11: distance is too far back in fixed or dynamic block + * + * Format notes: + * + * - Three bits are read for each block to determine the kind of block and + * whether or not it is the last block. Then the block is decoded and the + * process repeated if it was not the last block. + * + * - The leftover bits in the last byte of the deflate data after the last + * block (if it was a fixed or dynamic block) are undefined and have no + * expected values to check. + */ +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen) /* amount of input available */ +{ + struct state s; /* input/output state */ + int last, type; /* block information */ + int err; /* return value */ + + /* initialize output state */ + s.out = dest; + s.outlen = *destlen; /* ignored if dest is NIL */ + s.outcnt = 0; + + /* initialize input state */ + s.in = source; + s.inlen = *sourcelen; + s.incnt = 0; + s.bitbuf = 0; + s.bitcnt = 0; + + /* return if bits() or decode() tries to read past available input */ + if (setjmp(s.env) != 0) /* if came back here via longjmp() */ + err = 2; /* then skip do-loop, return error */ + else { + /* process blocks until last block or error */ + do { + last = bits(&s, 1); /* one if last block */ + type = bits(&s, 2); /* block type 0..3 */ + err = type == 0 ? stored(&s) : + (type == 1 ? fixed(&s) : + (type == 2 ? dynamic(&s) : + -1)); /* type == 3, invalid */ + if (err != 0) break; /* return with error */ + } while (!last); + } + + /* update the lengths and return */ + if (err <= 0) { + *destlen = s.outcnt; + *sourcelen = s.incnt; + } + return err; +} + +#ifdef TEST +/* Examples of how to use puff(). + + Usage: puff [-w] [-nnn] file + ... | puff [-w] [-nnn] + + where file is the input file with deflate data, nnn is the number of bytes + of input to skip before inflating (e.g. to skip a zlib or gzip header), and + -w is used to write the decompressed data to stdout */ + +#include <stdio.h> +#include <stdlib.h> + +/* Return size times approximately the cube root of 2, keeping the result as 1, + 3, or 5 times a power of 2 -- the result is always > size, until the result + is the maximum value of an unsigned long, where it remains. This is useful + to keep reallocations less than ~33% over the actual data. */ +local size_t bythirds(size_t size) +{ + int n; + size_t m; + + m = size; + for (n = 0; m; n++) + m >>= 1; + if (n < 3) + return size + 1; + n -= 3; + m = size >> n; + m += m == 6 ? 2 : 1; + m <<= n; + return m > size ? m : (size_t)(-1); +} + +/* Read the input file *name, or stdin if name is NULL, into allocated memory. + Reallocate to larger buffers until the entire file is read in. Return a + pointer to the allocated data, or NULL if there was a memory allocation + failure. *len is the number of bytes of data read from the input file (even + if load() returns NULL). If the input file was empty or could not be opened + or read, *len is zero. */ +local void *load(char *name, size_t *len) +{ + size_t size; + void *buf, *swap; + FILE *in; + + *len = 0; + buf = malloc(size = 4096); + if (buf == NULL) + return NULL; + in = name == NULL ? stdin : fopen(name, "rb"); + if (in != NULL) { + for (;;) { + *len += fread((char *)buf + *len, 1, size - *len, in); + if (*len < size) break; + size = bythirds(size); + if (size == *len || (swap = realloc(buf, size)) == NULL) { + free(buf); + buf = NULL; + break; + } + buf = swap; + } + fclose(in); + } + return buf; +} + +int main(int argc, char **argv) +{ + int ret, put = 0; + unsigned skip = 0; + char *arg, *name = NULL; + unsigned char *source = NULL, *dest; + size_t len = 0; + unsigned long sourcelen, destlen; + + /* process arguments */ + while (arg = *++argv, --argc) + if (arg[0] == '-') { + if (arg[1] == 'w' && arg[2] == 0) + put = 1; + else if (arg[1] >= '0' && arg[1] <= '9') + skip = (unsigned)atoi(arg + 1); + else { + fprintf(stderr, "invalid option %s\n", arg); + return 3; + } + } + else if (name != NULL) { + fprintf(stderr, "only one file name allowed\n"); + return 3; + } + else + name = arg; + source = load(name, &len); + if (source == NULL) { + fprintf(stderr, "memory allocation failure\n"); + return 4; + } + if (len == 0) { + fprintf(stderr, "could not read %s, or it was empty\n", + name == NULL ? "<stdin>" : name); + free(source); + return 3; + } + if (skip >= len) { + fprintf(stderr, "skip request of %d leaves no input\n", skip); + free(source); + return 3; + } + + /* test inflate data with offset skip */ + len -= skip; + sourcelen = (unsigned long)len; + ret = puff(NIL, &destlen, source + skip, &sourcelen); + if (ret) + fprintf(stderr, "puff() failed with return code %d\n", ret); + else { + fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen); + if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n", + len - sourcelen); + } + + /* if requested, inflate again and write decompressd data to stdout */ + if (put) { + dest = malloc(destlen); + if (dest == NULL) { + fprintf(stderr, "memory allocation failure\n"); + free(source); + return 4; + } + puff(dest, &destlen, source + skip, &sourcelen); + fwrite(dest, 1, destlen, stdout); + free(dest); + } + + /* clean up */ + free(source); + return ret; +} +#endif diff --git a/3party/zlib/contrib/puff/puff.h b/3party/zlib/contrib/puff/puff.h new file mode 100644 index 0000000000..88d1b3844f --- /dev/null +++ b/3party/zlib/contrib/puff/puff.h @@ -0,0 +1,31 @@ +/* puff.h + Copyright (C) 2002-2010 Mark Adler, all rights reserved + version 2.1, 4 Apr 2010 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + + +/* + * See puff.c for purpose and usage. + */ +int puff(unsigned char *dest, /* pointer to destination pointer */ + unsigned long *destlen, /* amount of output space */ + unsigned char *source, /* pointer to source data pointer */ + unsigned long *sourcelen); /* amount of input available */ diff --git a/3party/zlib/contrib/puff/zeros.raw b/3party/zlib/contrib/puff/zeros.raw Binary files differnew file mode 100644 index 0000000000..637b7be6f5 --- /dev/null +++ b/3party/zlib/contrib/puff/zeros.raw diff --git a/3party/zlib/contrib/testzlib/testzlib.c b/3party/zlib/contrib/testzlib/testzlib.c new file mode 100644 index 0000000000..135888eb10 --- /dev/null +++ b/3party/zlib/contrib/testzlib/testzlib.c @@ -0,0 +1,275 @@ +#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+
+#include "zlib.h"
+
+
+void MyDoMinus64(LARGE_INTEGER *R,LARGE_INTEGER A,LARGE_INTEGER B)
+{
+ R->HighPart = A.HighPart - B.HighPart;
+ if (A.LowPart >= B.LowPart)
+ R->LowPart = A.LowPart - B.LowPart;
+ else
+ {
+ R->LowPart = A.LowPart - B.LowPart;
+ R->HighPart --;
+ }
+}
+
+#ifdef _M_X64
+// see http://msdn2.microsoft.com/library/twchhe95(en-us,vs.80).aspx for __rdtsc
+unsigned __int64 __rdtsc(void);
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+ // printf("rdtsc = %I64x\n",__rdtsc());
+ pbeginTime64->QuadPart=__rdtsc();
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+ LARGE_INTEGER LIres;
+ unsigned _int64 res=__rdtsc()-((unsigned _int64)(beginTime64.QuadPart));
+ LIres.QuadPart=res;
+ // printf("rdtsc = %I64x\n",__rdtsc());
+ return LIres;
+}
+#else
+#ifdef _M_IX86
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+ DWORD dwEdx,dwEax;
+ _asm
+ {
+ rdtsc
+ mov dwEax,eax
+ mov dwEdx,edx
+ }
+ pbeginTime64->LowPart=dwEax;
+ pbeginTime64->HighPart=dwEdx;
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+ myGetRDTSC32(pbeginTime64);
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+ LARGE_INTEGER LIres,endTime64;
+ myGetRDTSC32(&endTime64);
+
+ LIres.LowPart=LIres.HighPart=0;
+ MyDoMinus64(&LIres,endTime64,beginTime64);
+ return LIres;
+}
+#else
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+ LARGE_INTEGER lr;
+ lr.QuadPart=0;
+ return lr;
+}
+#endif
+#endif
+
+void BeginCountPerfCounter(LARGE_INTEGER * pbeginTime64,BOOL fComputeTimeQueryPerf)
+{
+ if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(pbeginTime64)))
+ {
+ pbeginTime64->LowPart = GetTickCount();
+ pbeginTime64->HighPart = 0;
+ }
+}
+
+DWORD GetMsecSincePerfCounter(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+ LARGE_INTEGER endTime64,ticksPerSecond,ticks;
+ DWORDLONG ticksShifted,tickSecShifted;
+ DWORD dwLog=16+0;
+ DWORD dwRet;
+ if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(&endTime64)))
+ dwRet = (GetTickCount() - beginTime64.LowPart)*1;
+ else
+ {
+ MyDoMinus64(&ticks,endTime64,beginTime64);
+ QueryPerformanceFrequency(&ticksPerSecond);
+
+
+ {
+ ticksShifted = Int64ShrlMod32(*(DWORDLONG*)&ticks,dwLog);
+ tickSecShifted = Int64ShrlMod32(*(DWORDLONG*)&ticksPerSecond,dwLog);
+
+ }
+
+ dwRet = (DWORD)((((DWORD)ticksShifted)*1000)/(DWORD)(tickSecShifted));
+ dwRet *=1;
+ }
+ return dwRet;
+}
+
+int ReadFileMemory(const char* filename,long* plFileSize,void** pFilePtr)
+{
+ FILE* stream;
+ void* ptr;
+ int retVal=1;
+ stream=fopen(filename, "rb");
+ if (stream==NULL)
+ return 0;
+
+ fseek(stream,0,SEEK_END);
+
+ *plFileSize=ftell(stream);
+ fseek(stream,0,SEEK_SET);
+ ptr=malloc((*plFileSize)+1);
+ if (ptr==NULL)
+ retVal=0;
+ else
+ {
+ if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize))
+ retVal=0;
+ }
+ fclose(stream);
+ *pFilePtr=ptr;
+ return retVal;
+}
+
+int main(int argc, char *argv[])
+{
+ int BlockSizeCompress=0x8000;
+ int BlockSizeUncompress=0x8000;
+ int cprLevel=Z_DEFAULT_COMPRESSION ;
+ long lFileSize;
+ unsigned char* FilePtr;
+ long lBufferSizeCpr;
+ long lBufferSizeUncpr;
+ long lCompressedSize=0;
+ unsigned char* CprPtr;
+ unsigned char* UncprPtr;
+ long lSizeCpr,lSizeUncpr;
+ DWORD dwGetTick,dwMsecQP;
+ LARGE_INTEGER li_qp,li_rdtsc,dwResRdtsc;
+
+ if (argc<=1)
+ {
+ printf("run TestZlib <File> [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n");
+ return 0;
+ }
+
+ if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0)
+ {
+ printf("error reading %s\n",argv[1]);
+ return 1;
+ }
+ else printf("file %s read, %u bytes\n",argv[1],lFileSize);
+
+ if (argc>=3)
+ BlockSizeCompress=atol(argv[2]);
+
+ if (argc>=4)
+ BlockSizeUncompress=atol(argv[3]);
+
+ if (argc>=5)
+ cprLevel=(int)atol(argv[4]);
+
+ lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200;
+ lBufferSizeUncpr = lBufferSizeCpr;
+
+ CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress);
+
+ BeginCountPerfCounter(&li_qp,TRUE);
+ dwGetTick=GetTickCount();
+ BeginCountRdtsc(&li_rdtsc);
+ {
+ z_stream zcpr;
+ int ret=Z_OK;
+ long lOrigToDo = lFileSize;
+ long lOrigDone = 0;
+ int step=0;
+ memset(&zcpr,0,sizeof(z_stream));
+ deflateInit(&zcpr,cprLevel);
+
+ zcpr.next_in = FilePtr;
+ zcpr.next_out = CprPtr;
+
+
+ do
+ {
+ long all_read_before = zcpr.total_in;
+ zcpr.avail_in = min(lOrigToDo,BlockSizeCompress);
+ zcpr.avail_out = BlockSizeCompress;
+ ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH);
+ lOrigDone += (zcpr.total_in-all_read_before);
+ lOrigToDo -= (zcpr.total_in-all_read_before);
+ step++;
+ } while (ret==Z_OK);
+
+ lSizeCpr=zcpr.total_out;
+ deflateEnd(&zcpr);
+ dwGetTick=GetTickCount()-dwGetTick;
+ dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+ dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+ printf("total compress size = %u, in %u step\n",lSizeCpr,step);
+ printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+ printf("defcpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+ printf("defcpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+ }
+
+ CprPtr=(unsigned char*)realloc(CprPtr,lSizeCpr);
+ UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress);
+
+ BeginCountPerfCounter(&li_qp,TRUE);
+ dwGetTick=GetTickCount();
+ BeginCountRdtsc(&li_rdtsc);
+ {
+ z_stream zcpr;
+ int ret=Z_OK;
+ long lOrigToDo = lSizeCpr;
+ long lOrigDone = 0;
+ int step=0;
+ memset(&zcpr,0,sizeof(z_stream));
+ inflateInit(&zcpr);
+
+ zcpr.next_in = CprPtr;
+ zcpr.next_out = UncprPtr;
+
+
+ do
+ {
+ long all_read_before = zcpr.total_in;
+ zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress);
+ zcpr.avail_out = BlockSizeUncompress;
+ ret=inflate(&zcpr,Z_SYNC_FLUSH);
+ lOrigDone += (zcpr.total_in-all_read_before);
+ lOrigToDo -= (zcpr.total_in-all_read_before);
+ step++;
+ } while (ret==Z_OK);
+
+ lSizeUncpr=zcpr.total_out;
+ inflateEnd(&zcpr);
+ dwGetTick=GetTickCount()-dwGetTick;
+ dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+ dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+ printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step);
+ printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+ printf("uncpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+ printf("uncpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+ }
+
+ if (lSizeUncpr==lFileSize)
+ {
+ if (memcmp(FilePtr,UncprPtr,lFileSize)==0)
+ printf("compare ok\n");
+
+ }
+
+ return 0;
+}
diff --git a/3party/zlib/contrib/testzlib/testzlib.txt b/3party/zlib/contrib/testzlib/testzlib.txt new file mode 100644 index 0000000000..62258f1495 --- /dev/null +++ b/3party/zlib/contrib/testzlib/testzlib.txt @@ -0,0 +1,10 @@ +To build testzLib with Visual Studio 2005:
+
+copy to a directory file from :
+- root of zLib tree
+- contrib/testzlib
+- contrib/masmx86
+- contrib/masmx64
+- contrib/vstudio/vc7
+
+and open testzlib8.sln
\ No newline at end of file diff --git a/3party/zlib/contrib/untgz/Makefile.msc b/3party/zlib/contrib/untgz/Makefile.msc new file mode 100644 index 0000000000..77b8602213 --- /dev/null +++ b/3party/zlib/contrib/untgz/Makefile.msc @@ -0,0 +1,17 @@ +CC=cl +CFLAGS=-MD + +untgz.exe: untgz.obj ..\..\zlib.lib + $(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib + +untgz.obj: untgz.c ..\..\zlib.h + $(CC) $(CFLAGS) -c -I..\.. untgz.c + +..\..\zlib.lib: + cd ..\.. + $(MAKE) -f win32\makefile.msc + cd contrib\untgz + +clean: + -del untgz.obj + -del untgz.exe diff --git a/3party/zlib/contrib/untgz/untgz.c b/3party/zlib/contrib/untgz/untgz.c new file mode 100644 index 0000000000..2c391e5986 --- /dev/null +++ b/3party/zlib/contrib/untgz/untgz.c @@ -0,0 +1,674 @@ +/* + * untgz.c -- Display contents and extract files from a gzip'd TAR file + * + * written by Pedro A. Aranda Gutierrez <paag@tid.es> + * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org> + * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro> + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <errno.h> + +#include "zlib.h" + +#ifdef unix +# include <unistd.h> +#else +# include <direct.h> +# include <io.h> +#endif + +#ifdef WIN32 +#include <windows.h> +# ifndef F_OK +# define F_OK 0 +# endif +# define mkdir(dirname,mode) _mkdir(dirname) +# ifdef _MSC_VER +# define access(path,mode) _access(path,mode) +# define chmod(path,mode) _chmod(path,mode) +# define strdup(str) _strdup(str) +# endif +#else +# include <utime.h> +#endif + + +/* values used in typeflag field */ + +#define REGTYPE '0' /* regular file */ +#define AREGTYPE '\0' /* regular file */ +#define LNKTYPE '1' /* link */ +#define SYMTYPE '2' /* reserved */ +#define CHRTYPE '3' /* character special */ +#define BLKTYPE '4' /* block special */ +#define DIRTYPE '5' /* directory */ +#define FIFOTYPE '6' /* FIFO special */ +#define CONTTYPE '7' /* reserved */ + +/* GNU tar extensions */ + +#define GNUTYPE_DUMPDIR 'D' /* file names from dumped directory */ +#define GNUTYPE_LONGLINK 'K' /* long link name */ +#define GNUTYPE_LONGNAME 'L' /* long file name */ +#define GNUTYPE_MULTIVOL 'M' /* continuation of file from another volume */ +#define GNUTYPE_NAMES 'N' /* file name that does not fit into main hdr */ +#define GNUTYPE_SPARSE 'S' /* sparse file */ +#define GNUTYPE_VOLHDR 'V' /* tape/volume header */ + + +/* tar header */ + +#define BLOCKSIZE 512 +#define SHORTNAMESIZE 100 + +struct tar_header +{ /* byte offset */ + char name[100]; /* 0 */ + char mode[8]; /* 100 */ + char uid[8]; /* 108 */ + char gid[8]; /* 116 */ + char size[12]; /* 124 */ + char mtime[12]; /* 136 */ + char chksum[8]; /* 148 */ + char typeflag; /* 156 */ + char linkname[100]; /* 157 */ + char magic[6]; /* 257 */ + char version[2]; /* 263 */ + char uname[32]; /* 265 */ + char gname[32]; /* 297 */ + char devmajor[8]; /* 329 */ + char devminor[8]; /* 337 */ + char prefix[155]; /* 345 */ + /* 500 */ +}; + +union tar_buffer +{ + char buffer[BLOCKSIZE]; + struct tar_header header; +}; + +struct attr_item +{ + struct attr_item *next; + char *fname; + int mode; + time_t time; +}; + +enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID }; + +char *TGZfname OF((const char *)); +void TGZnotfound OF((const char *)); + +int getoct OF((char *, int)); +char *strtime OF((time_t *)); +int setfiletime OF((char *, time_t)); +void push_attr OF((struct attr_item **, char *, int, time_t)); +void restore_attr OF((struct attr_item **)); + +int ExprMatch OF((char *, char *)); + +int makedir OF((char *)); +int matchname OF((int, int, char **, char *)); + +void error OF((const char *)); +int tar OF((gzFile, int, int, int, char **)); + +void help OF((int)); +int main OF((int, char **)); + +char *prog; + +const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL }; + +/* return the file name of the TGZ archive */ +/* or NULL if it does not exist */ + +char *TGZfname (const char *arcname) +{ + static char buffer[1024]; + int origlen,i; + + strcpy(buffer,arcname); + origlen = strlen(buffer); + + for (i=0; TGZsuffix[i]; i++) + { + strcpy(buffer+origlen,TGZsuffix[i]); + if (access(buffer,F_OK) == 0) + return buffer; + } + return NULL; +} + + +/* error message for the filename */ + +void TGZnotfound (const char *arcname) +{ + int i; + + fprintf(stderr,"%s: Couldn't find ",prog); + for (i=0;TGZsuffix[i];i++) + fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n", + arcname, + TGZsuffix[i]); + exit(1); +} + + +/* convert octal digits to int */ +/* on error return -1 */ + +int getoct (char *p,int width) +{ + int result = 0; + char c; + + while (width--) + { + c = *p++; + if (c == 0) + break; + if (c == ' ') + continue; + if (c < '0' || c > '7') + return -1; + result = result * 8 + (c - '0'); + } + return result; +} + + +/* convert time_t to string */ +/* use the "YYYY/MM/DD hh:mm:ss" format */ + +char *strtime (time_t *t) +{ + struct tm *local; + static char result[32]; + + local = localtime(t); + sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d", + local->tm_year+1900, local->tm_mon+1, local->tm_mday, + local->tm_hour, local->tm_min, local->tm_sec); + return result; +} + + +/* set file time */ + +int setfiletime (char *fname,time_t ftime) +{ +#ifdef WIN32 + static int isWinNT = -1; + SYSTEMTIME st; + FILETIME locft, modft; + struct tm *loctm; + HANDLE hFile; + int result; + + loctm = localtime(&ftime); + if (loctm == NULL) + return -1; + + st.wYear = (WORD)loctm->tm_year + 1900; + st.wMonth = (WORD)loctm->tm_mon + 1; + st.wDayOfWeek = (WORD)loctm->tm_wday; + st.wDay = (WORD)loctm->tm_mday; + st.wHour = (WORD)loctm->tm_hour; + st.wMinute = (WORD)loctm->tm_min; + st.wSecond = (WORD)loctm->tm_sec; + st.wMilliseconds = 0; + if (!SystemTimeToFileTime(&st, &locft) || + !LocalFileTimeToFileTime(&locft, &modft)) + return -1; + + if (isWinNT < 0) + isWinNT = (GetVersion() < 0x80000000) ? 1 : 0; + hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, + (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0), + NULL); + if (hFile == INVALID_HANDLE_VALUE) + return -1; + result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1; + CloseHandle(hFile); + return result; +#else + struct utimbuf settime; + + settime.actime = settime.modtime = ftime; + return utime(fname,&settime); +#endif +} + + +/* push file attributes */ + +void push_attr(struct attr_item **list,char *fname,int mode,time_t time) +{ + struct attr_item *item; + + item = (struct attr_item *)malloc(sizeof(struct attr_item)); + if (item == NULL) + error("Out of memory"); + item->fname = strdup(fname); + item->mode = mode; + item->time = time; + item->next = *list; + *list = item; +} + + +/* restore file attributes */ + +void restore_attr(struct attr_item **list) +{ + struct attr_item *item, *prev; + + for (item = *list; item != NULL; ) + { + setfiletime(item->fname,item->time); + chmod(item->fname,item->mode); + prev = item; + item = item->next; + free(prev); + } + *list = NULL; +} + + +/* match regular expression */ + +#define ISSPECIAL(c) (((c) == '*') || ((c) == '/')) + +int ExprMatch (char *string,char *expr) +{ + while (1) + { + if (ISSPECIAL(*expr)) + { + if (*expr == '/') + { + if (*string != '\\' && *string != '/') + return 0; + string ++; expr++; + } + else if (*expr == '*') + { + if (*expr ++ == 0) + return 1; + while (*++string != *expr) + if (*string == 0) + return 0; + } + } + else + { + if (*string != *expr) + return 0; + if (*expr++ == 0) + return 1; + string++; + } + } +} + + +/* recursive mkdir */ +/* abort on ENOENT; ignore other errors like "directory already exists" */ +/* return 1 if OK */ +/* 0 on error */ + +int makedir (char *newdir) +{ + char *buffer = strdup(newdir); + char *p; + int len = strlen(buffer); + + if (len <= 0) { + free(buffer); + return 0; + } + if (buffer[len-1] == '/') { + buffer[len-1] = '\0'; + } + if (mkdir(buffer, 0755) == 0) + { + free(buffer); + return 1; + } + + p = buffer+1; + while (1) + { + char hold; + + while(*p && *p != '\\' && *p != '/') + p++; + hold = *p; + *p = 0; + if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT)) + { + fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer); + free(buffer); + return 0; + } + if (hold == 0) + break; + *p++ = hold; + } + free(buffer); + return 1; +} + + +int matchname (int arg,int argc,char **argv,char *fname) +{ + if (arg == argc) /* no arguments given (untgz tgzarchive) */ + return 1; + + while (arg < argc) + if (ExprMatch(fname,argv[arg++])) + return 1; + + return 0; /* ignore this for the moment being */ +} + + +/* tar file list or extract */ + +int tar (gzFile in,int action,int arg,int argc,char **argv) +{ + union tar_buffer buffer; + int len; + int err; + int getheader = 1; + int remaining = 0; + FILE *outfile = NULL; + char fname[BLOCKSIZE]; + int tarmode; + time_t tartime; + struct attr_item *attributes = NULL; + + if (action == TGZ_LIST) + printf(" date time size file\n" + " ---------- -------- --------- -------------------------------------\n"); + while (1) + { + len = gzread(in, &buffer, BLOCKSIZE); + if (len < 0) + error(gzerror(in, &err)); + /* + * Always expect complete blocks to process + * the tar information. + */ + if (len != BLOCKSIZE) + { + action = TGZ_INVALID; /* force error exit */ + remaining = 0; /* force I/O cleanup */ + } + + /* + * If we have to get a tar header + */ + if (getheader >= 1) + { + /* + * if we met the end of the tar + * or the end-of-tar block, + * we are done + */ + if (len == 0 || buffer.header.name[0] == 0) + break; + + tarmode = getoct(buffer.header.mode,8); + tartime = (time_t)getoct(buffer.header.mtime,12); + if (tarmode == -1 || tartime == (time_t)-1) + { + buffer.header.name[0] = 0; + action = TGZ_INVALID; + } + + if (getheader == 1) + { + strncpy(fname,buffer.header.name,SHORTNAMESIZE); + if (fname[SHORTNAMESIZE-1] != 0) + fname[SHORTNAMESIZE] = 0; + } + else + { + /* + * The file name is longer than SHORTNAMESIZE + */ + if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0) + error("bad long name"); + getheader = 1; + } + + /* + * Act according to the type flag + */ + switch (buffer.header.typeflag) + { + case DIRTYPE: + if (action == TGZ_LIST) + printf(" %s <dir> %s\n",strtime(&tartime),fname); + if (action == TGZ_EXTRACT) + { + makedir(fname); + push_attr(&attributes,fname,tarmode,tartime); + } + break; + case REGTYPE: + case AREGTYPE: + remaining = getoct(buffer.header.size,12); + if (remaining == -1) + { + action = TGZ_INVALID; + break; + } + if (action == TGZ_LIST) + printf(" %s %9d %s\n",strtime(&tartime),remaining,fname); + else if (action == TGZ_EXTRACT) + { + if (matchname(arg,argc,argv,fname)) + { + outfile = fopen(fname,"wb"); + if (outfile == NULL) { + /* try creating directory */ + char *p = strrchr(fname, '/'); + if (p != NULL) { + *p = '\0'; + makedir(fname); + *p = '/'; + outfile = fopen(fname,"wb"); + } + } + if (outfile != NULL) + printf("Extracting %s\n",fname); + else + fprintf(stderr, "%s: Couldn't create %s",prog,fname); + } + else + outfile = NULL; + } + getheader = 0; + break; + case GNUTYPE_LONGLINK: + case GNUTYPE_LONGNAME: + remaining = getoct(buffer.header.size,12); + if (remaining < 0 || remaining >= BLOCKSIZE) + { + action = TGZ_INVALID; + break; + } + len = gzread(in, fname, BLOCKSIZE); + if (len < 0) + error(gzerror(in, &err)); + if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining) + { + action = TGZ_INVALID; + break; + } + getheader = 2; + break; + default: + if (action == TGZ_LIST) + printf(" %s <---> %s\n",strtime(&tartime),fname); + break; + } + } + else + { + unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining; + + if (outfile != NULL) + { + if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes) + { + fprintf(stderr, + "%s: Error writing %s -- skipping\n",prog,fname); + fclose(outfile); + outfile = NULL; + remove(fname); + } + } + remaining -= bytes; + } + + if (remaining == 0) + { + getheader = 1; + if (outfile != NULL) + { + fclose(outfile); + outfile = NULL; + if (action != TGZ_INVALID) + push_attr(&attributes,fname,tarmode,tartime); + } + } + + /* + * Abandon if errors are found + */ + if (action == TGZ_INVALID) + { + error("broken archive"); + break; + } + } + + /* + * Restore file modes and time stamps + */ + restore_attr(&attributes); + + if (gzclose(in) != Z_OK) + error("failed gzclose"); + + return 0; +} + + +/* ============================================================ */ + +void help(int exitval) +{ + printf("untgz version 0.2.1\n" + " using zlib version %s\n\n", + zlibVersion()); + printf("Usage: untgz file.tgz extract all files\n" + " untgz file.tgz fname ... extract selected files\n" + " untgz -l file.tgz list archive contents\n" + " untgz -h display this help\n"); + exit(exitval); +} + +void error(const char *msg) +{ + fprintf(stderr, "%s: %s\n", prog, msg); + exit(1); +} + + +/* ============================================================ */ + +#if defined(WIN32) && defined(__GNUC__) +int _CRT_glob = 0; /* disable argument globbing in MinGW */ +#endif + +int main(int argc,char **argv) +{ + int action = TGZ_EXTRACT; + int arg = 1; + char *TGZfile; + gzFile *f; + + prog = strrchr(argv[0],'\\'); + if (prog == NULL) + { + prog = strrchr(argv[0],'/'); + if (prog == NULL) + { + prog = strrchr(argv[0],':'); + if (prog == NULL) + prog = argv[0]; + else + prog++; + } + else + prog++; + } + else + prog++; + + if (argc == 1) + help(0); + + if (strcmp(argv[arg],"-l") == 0) + { + action = TGZ_LIST; + if (argc == ++arg) + help(0); + } + else if (strcmp(argv[arg],"-h") == 0) + { + help(0); + } + + if ((TGZfile = TGZfname(argv[arg])) == NULL) + TGZnotfound(argv[arg]); + + ++arg; + if ((action == TGZ_LIST) && (arg != argc)) + help(1); + +/* + * Process the TGZ file + */ + switch(action) + { + case TGZ_LIST: + case TGZ_EXTRACT: + f = gzopen(TGZfile,"rb"); + if (f == NULL) + { + fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile); + return 1; + } + exit(tar(f, action, arg, argc, argv)); + break; + + default: + error("Unknown option"); + exit(1); + } + + return 0; +} diff --git a/3party/zlib/contrib/vstudio/readme.txt b/3party/zlib/contrib/vstudio/readme.txt new file mode 100644 index 0000000000..904888ba39 --- /dev/null +++ b/3party/zlib/contrib/vstudio/readme.txt @@ -0,0 +1,60 @@ +Building instructions for the DLL versions of Zlib 1.2.4
+========================================================
+
+This directory contains projects that build zlib and minizip using
+Microsoft Visual C++ 9.0/10.0, and Visual C++ .
+
+You don't need to build these projects yourself. You can download the
+binaries from:
+ http://www.winimage.com/zLibDll
+
+More information can be found at this site.
+
+first compile assembly code by running
+bld_ml64.bat in contrib\masmx64
+bld_ml32.bat in contrib\masmx86
+
+
+
+
+Build instructions for Visual Studio 2008 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Uncompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008.0
+- Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"
+
+Build instructions for Visual Studio 2010 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Uncompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010.0
+
+
+Important
+---------
+- To use zlibwapi.dll in your application, you must define the
+ macro ZLIB_WINAPI when compiling your application's source files.
+
+
+Additional notes
+----------------
+- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built
+ by Gilles Vollant from the zlib 1.1.x sources, and distributed at
+ http://www.winimage.com/zLibDll
+ It uses the WINAPI calling convention for the exported functions, and
+ includes the minizip functionality. If your application needs that
+ particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.
+
+- The new DLL was renamed because there exist several incompatible
+ versions of zlib.dll on the Internet.
+
+- There is also an official DLL build of zlib, named zlib1.dll. This one
+ is exporting the functions using the CDECL convention. See the file
+ win32\DLL_FAQ.txt found in this zlib distribution.
+
+- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol
+ has a slightly different effect. To avoid compatibility problems, do
+ not define it here.
+
+
+Gilles Vollant
+info@winimage.com
diff --git a/3party/zlib/contrib/vstudio/vc10/zlibvc.def b/3party/zlib/contrib/vstudio/vc10/zlibvc.def new file mode 100644 index 0000000000..0269ef722c --- /dev/null +++ b/3party/zlib/contrib/vstudio/vc10/zlibvc.def @@ -0,0 +1,130 @@ +LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION 1.24
+
+EXPORTS
+ adler32 @1
+ compress @2
+ crc32 @3
+ deflate @4
+ deflateCopy @5
+ deflateEnd @6
+ deflateInit2_ @7
+ deflateInit_ @8
+ deflateParams @9
+ deflateReset @10
+ deflateSetDictionary @11
+ gzclose @12
+ gzdopen @13
+ gzerror @14
+ gzflush @15
+ gzopen @16
+ gzread @17
+ gzwrite @18
+ inflate @19
+ inflateEnd @20
+ inflateInit2_ @21
+ inflateInit_ @22
+ inflateReset @23
+ inflateSetDictionary @24
+ inflateSync @25
+ uncompress @26
+ zlibVersion @27
+ gzprintf @28
+ gzputc @29
+ gzgetc @30
+ gzseek @31
+ gzrewind @32
+ gztell @33
+ gzeof @34
+ gzsetparams @35
+ zError @36
+ inflateSyncPoint @37
+ get_crc_table @38
+ compress2 @39
+ gzputs @40
+ gzgets @41
+ inflateCopy @42
+ inflateBackInit_ @43
+ inflateBack @44
+ inflateBackEnd @45
+ compressBound @46
+ deflateBound @47
+ gzclearerr @48
+ gzungetc @49
+ zlibCompileFlags @50
+ deflatePrime @51
+
+ unzOpen @61
+ unzClose @62
+ unzGetGlobalInfo @63
+ unzGetCurrentFileInfo @64
+ unzGoToFirstFile @65
+ unzGoToNextFile @66
+ unzOpenCurrentFile @67
+ unzReadCurrentFile @68
+ unzOpenCurrentFile3 @69
+ unztell @70
+ unzeof @71
+ unzCloseCurrentFile @72
+ unzGetGlobalComment @73
+ unzStringFileNameCompare @74
+ unzLocateFile @75
+ unzGetLocalExtrafield @76
+ unzOpen2 @77
+ unzOpenCurrentFile2 @78
+ unzOpenCurrentFilePassword @79
+
+ zipOpen @80
+ zipOpenNewFileInZip @81
+ zipWriteInFileInZip @82
+ zipCloseFileInZip @83
+ zipClose @84
+ zipOpenNewFileInZip2 @86
+ zipCloseFileInZipRaw @87
+ zipOpen2 @88
+ zipOpenNewFileInZip3 @89
+
+ unzGetFilePos @100
+ unzGoToFilePos @101
+
+ fill_win32_filefunc @110
+
+; zlibwapi v1.2.4 added:
+ fill_win32_filefunc64 @111
+ fill_win32_filefunc64A @112
+ fill_win32_filefunc64W @113
+
+ unzOpen64 @120
+ unzOpen2_64 @121
+ unzGetGlobalInfo64 @122
+ unzGetCurrentFileInfo64 @124
+ unzGetCurrentFileZStreamPos64 @125
+ unztell64 @126
+ unzGetFilePos64 @127
+ unzGoToFilePos64 @128
+
+ zipOpen64 @130
+ zipOpen2_64 @131
+ zipOpenNewFileInZip64 @132
+ zipOpenNewFileInZip2_64 @133
+ zipOpenNewFileInZip3_64 @134
+ zipOpenNewFileInZip4_64 @135
+ zipCloseFileInZipRaw64 @136
+
+; zlib1 v1.2.4 added:
+ adler32_combine @140
+ crc32_combine @142
+ deflateSetHeader @144
+ deflateTune @145
+ gzbuffer @146
+ gzclose_r @147
+ gzclose_w @148
+ gzdirect @149
+ gzoffset @150
+ inflateGetHeader @156
+ inflateMark @157
+ inflatePrime @158
+ inflateReset2 @159
+ inflateUndermine @160
diff --git a/3party/zlib/contrib/vstudio/vc9/zlibvc.def b/3party/zlib/contrib/vstudio/vc9/zlibvc.def new file mode 100644 index 0000000000..0269ef722c --- /dev/null +++ b/3party/zlib/contrib/vstudio/vc9/zlibvc.def @@ -0,0 +1,130 @@ +LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION 1.24
+
+EXPORTS
+ adler32 @1
+ compress @2
+ crc32 @3
+ deflate @4
+ deflateCopy @5
+ deflateEnd @6
+ deflateInit2_ @7
+ deflateInit_ @8
+ deflateParams @9
+ deflateReset @10
+ deflateSetDictionary @11
+ gzclose @12
+ gzdopen @13
+ gzerror @14
+ gzflush @15
+ gzopen @16
+ gzread @17
+ gzwrite @18
+ inflate @19
+ inflateEnd @20
+ inflateInit2_ @21
+ inflateInit_ @22
+ inflateReset @23
+ inflateSetDictionary @24
+ inflateSync @25
+ uncompress @26
+ zlibVersion @27
+ gzprintf @28
+ gzputc @29
+ gzgetc @30
+ gzseek @31
+ gzrewind @32
+ gztell @33
+ gzeof @34
+ gzsetparams @35
+ zError @36
+ inflateSyncPoint @37
+ get_crc_table @38
+ compress2 @39
+ gzputs @40
+ gzgets @41
+ inflateCopy @42
+ inflateBackInit_ @43
+ inflateBack @44
+ inflateBackEnd @45
+ compressBound @46
+ deflateBound @47
+ gzclearerr @48
+ gzungetc @49
+ zlibCompileFlags @50
+ deflatePrime @51
+
+ unzOpen @61
+ unzClose @62
+ unzGetGlobalInfo @63
+ unzGetCurrentFileInfo @64
+ unzGoToFirstFile @65
+ unzGoToNextFile @66
+ unzOpenCurrentFile @67
+ unzReadCurrentFile @68
+ unzOpenCurrentFile3 @69
+ unztell @70
+ unzeof @71
+ unzCloseCurrentFile @72
+ unzGetGlobalComment @73
+ unzStringFileNameCompare @74
+ unzLocateFile @75
+ unzGetLocalExtrafield @76
+ unzOpen2 @77
+ unzOpenCurrentFile2 @78
+ unzOpenCurrentFilePassword @79
+
+ zipOpen @80
+ zipOpenNewFileInZip @81
+ zipWriteInFileInZip @82
+ zipCloseFileInZip @83
+ zipClose @84
+ zipOpenNewFileInZip2 @86
+ zipCloseFileInZipRaw @87
+ zipOpen2 @88
+ zipOpenNewFileInZip3 @89
+
+ unzGetFilePos @100
+ unzGoToFilePos @101
+
+ fill_win32_filefunc @110
+
+; zlibwapi v1.2.4 added:
+ fill_win32_filefunc64 @111
+ fill_win32_filefunc64A @112
+ fill_win32_filefunc64W @113
+
+ unzOpen64 @120
+ unzOpen2_64 @121
+ unzGetGlobalInfo64 @122
+ unzGetCurrentFileInfo64 @124
+ unzGetCurrentFileZStreamPos64 @125
+ unztell64 @126
+ unzGetFilePos64 @127
+ unzGoToFilePos64 @128
+
+ zipOpen64 @130
+ zipOpen2_64 @131
+ zipOpenNewFileInZip64 @132
+ zipOpenNewFileInZip2_64 @133
+ zipOpenNewFileInZip3_64 @134
+ zipOpenNewFileInZip4_64 @135
+ zipCloseFileInZipRaw64 @136
+
+; zlib1 v1.2.4 added:
+ adler32_combine @140
+ crc32_combine @142
+ deflateSetHeader @144
+ deflateTune @145
+ gzbuffer @146
+ gzclose_r @147
+ gzclose_w @148
+ gzdirect @149
+ gzoffset @150
+ inflateGetHeader @156
+ inflateMark @157
+ inflatePrime @158
+ inflateReset2 @159
+ inflateUndermine @160
diff --git a/3party/zlib/doc/algorithm.txt b/3party/zlib/doc/algorithm.txt new file mode 100644 index 0000000000..34960bddac --- /dev/null +++ b/3party/zlib/doc/algorithm.txt @@ -0,0 +1,209 @@ +1. Compression algorithm (deflate) + +The deflation algorithm used by gzip (also zip and zlib) is a variation of +LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in +the input data. The second occurrence of a string is replaced by a +pointer to the previous string, in the form of a pair (distance, +length). Distances are limited to 32K bytes, and lengths are limited +to 258 bytes. When a string does not occur anywhere in the previous +32K bytes, it is emitted as a sequence of literal bytes. (In this +description, `string' must be taken as an arbitrary sequence of bytes, +and is not restricted to printable characters.) + +Literals or match lengths are compressed with one Huffman tree, and +match distances are compressed with another tree. The trees are stored +in a compact form at the start of each block. The blocks can have any +size (except that the compressed data for one block must fit in +available memory). A block is terminated when deflate() determines that +it would be useful to start another block with fresh trees. (This is +somewhat similar to the behavior of LZW-based _compress_.) + +Duplicated strings are found using a hash table. All input strings of +length 3 are inserted in the hash table. A hash index is computed for +the next 3 bytes. If the hash chain for this index is not empty, all +strings in the chain are compared with the current input string, and +the longest match is selected. + +The hash chains are searched starting with the most recent strings, to +favor small distances and thus take advantage of the Huffman encoding. +The hash chains are singly linked. There are no deletions from the +hash chains, the algorithm simply discards matches that are too old. + +To avoid a worst-case situation, very long hash chains are arbitrarily +truncated at a certain length, determined by a runtime option (level +parameter of deflateInit). So deflate() does not always find the longest +possible match but generally finds a match which is long enough. + +deflate() also defers the selection of matches with a lazy evaluation +mechanism. After a match of length N has been found, deflate() searches for +a longer match at the next input byte. If a longer match is found, the +previous match is truncated to a length of one (thus producing a single +literal byte) and the process of lazy evaluation begins again. Otherwise, +the original match is kept, and the next match search is attempted only N +steps later. + +The lazy match evaluation is also subject to a runtime parameter. If +the current match is long enough, deflate() reduces the search for a longer +match, thus speeding up the whole process. If compression ratio is more +important than speed, deflate() attempts a complete second search even if +the first match is already long enough. + +The lazy match evaluation is not performed for the fastest compression +modes (level parameter 1 to 3). For these fast modes, new strings +are inserted in the hash table only when no match was found, or +when the match is not too long. This degrades the compression ratio +but saves time since there are both fewer insertions and fewer searches. + + +2. Decompression algorithm (inflate) + +2.1 Introduction + +The key question is how to represent a Huffman code (or any prefix code) so +that you can decode fast. The most important characteristic is that shorter +codes are much more common than longer codes, so pay attention to decoding the +short codes fast, and let the long codes take longer to decode. + +inflate() sets up a first level table that covers some number of bits of +input less than the length of longest code. It gets that many bits from the +stream, and looks it up in the table. The table will tell if the next +code is that many bits or less and how many, and if it is, it will tell +the value, else it will point to the next level table for which inflate() +grabs more bits and tries to decode a longer code. + +How many bits to make the first lookup is a tradeoff between the time it +takes to decode and the time it takes to build the table. If building the +table took no time (and if you had infinite memory), then there would only +be a first level table to cover all the way to the longest code. However, +building the table ends up taking a lot longer for more bits since short +codes are replicated many times in such a table. What inflate() does is +simply to make the number of bits in the first table a variable, and then +to set that variable for the maximum speed. + +For inflate, which has 286 possible codes for the literal/length tree, the size +of the first table is nine bits. Also the distance trees have 30 possible +values, and the size of the first table is six bits. Note that for each of +those cases, the table ended up one bit longer than the ``average'' code +length, i.e. the code length of an approximately flat code which would be a +little more than eight bits for 286 symbols and a little less than five bits +for 30 symbols. + + +2.2 More details on the inflate table lookup + +Ok, you want to know what this cleverly obfuscated inflate tree actually +looks like. You are correct that it's not a Huffman tree. It is simply a +lookup table for the first, let's say, nine bits of a Huffman symbol. The +symbol could be as short as one bit or as long as 15 bits. If a particular +symbol is shorter than nine bits, then that symbol's translation is duplicated +in all those entries that start with that symbol's bits. For example, if the +symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a +symbol is nine bits long, it appears in the table once. + +If the symbol is longer than nine bits, then that entry in the table points +to another similar table for the remaining bits. Again, there are duplicated +entries as needed. The idea is that most of the time the symbol will be short +and there will only be one table look up. (That's whole idea behind data +compression in the first place.) For the less frequent long symbols, there +will be two lookups. If you had a compression method with really long +symbols, you could have as many levels of lookups as is efficient. For +inflate, two is enough. + +So a table entry either points to another table (in which case nine bits in +the above example are gobbled), or it contains the translation for the symbol +and the number of bits to gobble. Then you start again with the next +ungobbled bit. + +You may wonder: why not just have one lookup table for how ever many bits the +longest symbol is? The reason is that if you do that, you end up spending +more time filling in duplicate symbol entries than you do actually decoding. +At least for deflate's output that generates new trees every several 10's of +kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code +would take too long if you're only decoding several thousand symbols. At the +other extreme, you could make a new table for every bit in the code. In fact, +that's essentially a Huffman tree. But then you spend too much time +traversing the tree while decoding, even for short symbols. + +So the number of bits for the first lookup table is a trade of the time to +fill out the table vs. the time spent looking at the second level and above of +the table. + +Here is an example, scaled down: + +The code being decoded, with 10 symbols, from 1 to 6 bits long: + +A: 0 +B: 10 +C: 1100 +D: 11010 +E: 11011 +F: 11100 +G: 11101 +H: 11110 +I: 111110 +J: 111111 + +Let's make the first table three bits long (eight entries): + +000: A,1 +001: A,1 +010: A,1 +011: A,1 +100: B,2 +101: B,2 +110: -> table X (gobble 3 bits) +111: -> table Y (gobble 3 bits) + +Each entry is what the bits decode as and how many bits that is, i.e. how +many bits to gobble. Or the entry points to another table, with the number of +bits to gobble implicit in the size of the table. + +Table X is two bits long since the longest code starting with 110 is five bits +long: + +00: C,1 +01: C,1 +10: D,2 +11: E,2 + +Table Y is three bits long since the longest code starting with 111 is six +bits long: + +000: F,2 +001: F,2 +010: G,2 +011: G,2 +100: H,2 +101: H,2 +110: I,3 +111: J,3 + +So what we have here are three tables with a total of 20 entries that had to +be constructed. That's compared to 64 entries for a single table. Or +compared to 16 entries for a Huffman tree (six two entry tables and one four +entry table). Assuming that the code ideally represents the probability of +the symbols, it takes on the average 1.25 lookups per symbol. That's compared +to one lookup for the single table, or 1.66 lookups per symbol for the +Huffman tree. + +There, I think that gives you a picture of what's going on. For inflate, the +meaning of a particular symbol is often more than just a letter. It can be a +byte (a "literal"), or it can be either a length or a distance which +indicates a base value and a number of bits to fetch after the code that is +added to the base value. Or it might be the special end-of-block code. The +data structures created in inftrees.c try to encode all that information +compactly in the tables. + + +Jean-loup Gailly Mark Adler +jloup@gzip.org madler@alumni.caltech.edu + + +References: + +[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data +Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3, +pp. 337-343. + +``DEFLATE Compressed Data Format Specification'' available in +http://www.ietf.org/rfc/rfc1951.txt diff --git a/3party/zlib/doc/rfc1950.txt b/3party/zlib/doc/rfc1950.txt new file mode 100644 index 0000000000..ce6428a0f2 --- /dev/null +++ b/3party/zlib/doc/rfc1950.txt @@ -0,0 +1,619 @@ + + + + + + +Network Working Group P. Deutsch +Request for Comments: 1950 Aladdin Enterprises +Category: Informational J-L. Gailly + Info-ZIP + May 1996 + + + ZLIB Compressed Data Format Specification version 3.3 + +Status of This Memo + + This memo provides information for the Internet community. This memo + does not specify an Internet standard of any kind. Distribution of + this memo is unlimited. + +IESG Note: + + The IESG takes no position on the validity of any Intellectual + Property Rights statements contained in this document. + +Notices + + Copyright (c) 1996 L. Peter Deutsch and Jean-Loup Gailly + + Permission is granted to copy and distribute this document for any + purpose and without charge, including translations into other + languages and incorporation into compilations, provided that the + copyright notice and this notice are preserved, and that any + substantive changes or deletions from the original are clearly + marked. + + A pointer to the latest version of this and related documentation in + HTML format can be found at the URL + <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>. + +Abstract + + This specification defines a lossless compressed data format. The + data can be produced or consumed, even for an arbitrarily long + sequentially presented input data stream, using only an a priori + bounded amount of intermediate storage. The format presently uses + the DEFLATE compression method but can be easily extended to use + other compression methods. It can be implemented readily in a manner + not covered by patents. This specification also defines the ADLER-32 + checksum (an extension and improvement of the Fletcher checksum), + used for detection of data corruption, and provides an algorithm for + computing it. + + + + +Deutsch & Gailly Informational [Page 1] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + +Table of Contents + + 1. Introduction ................................................... 2 + 1.1. Purpose ................................................... 2 + 1.2. Intended audience ......................................... 3 + 1.3. Scope ..................................................... 3 + 1.4. Compliance ................................................ 3 + 1.5. Definitions of terms and conventions used ................ 3 + 1.6. Changes from previous versions ............................ 3 + 2. Detailed specification ......................................... 3 + 2.1. Overall conventions ....................................... 3 + 2.2. Data format ............................................... 4 + 2.3. Compliance ................................................ 7 + 3. References ..................................................... 7 + 4. Source code .................................................... 8 + 5. Security Considerations ........................................ 8 + 6. Acknowledgements ............................................... 8 + 7. Authors' Addresses ............................................. 8 + 8. Appendix: Rationale ............................................ 9 + 9. Appendix: Sample code ..........................................10 + +1. Introduction + + 1.1. Purpose + + The purpose of this specification is to define a lossless + compressed data format that: + + * Is independent of CPU type, operating system, file system, + and character set, and hence can be used for interchange; + + * Can be produced or consumed, even for an arbitrarily long + sequentially presented input data stream, using only an a + priori bounded amount of intermediate storage, and hence can + be used in data communications or similar structures such as + Unix filters; + + * Can use a number of different compression methods; + + * Can be implemented readily in a manner not covered by + patents, and hence can be practiced freely. + + The data format defined by this specification does not attempt to + allow random access to compressed data. + + + + + + + +Deutsch & Gailly Informational [Page 2] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + 1.2. Intended audience + + This specification is intended for use by implementors of software + to compress data into zlib format and/or decompress data from zlib + format. + + The text of the specification assumes a basic background in + programming at the level of bits and other primitive data + representations. + + 1.3. Scope + + The specification specifies a compressed data format that can be + used for in-memory compression of a sequence of arbitrary bytes. + + 1.4. Compliance + + Unless otherwise indicated below, a compliant decompressor must be + able to accept and decompress any data set that conforms to all + the specifications presented here; a compliant compressor must + produce data sets that conform to all the specifications presented + here. + + 1.5. Definitions of terms and conventions used + + byte: 8 bits stored or transmitted as a unit (same as an octet). + (For this specification, a byte is exactly 8 bits, even on + machines which store a character on a number of bits different + from 8.) See below, for the numbering of bits within a byte. + + 1.6. Changes from previous versions + + Version 3.1 was the first public release of this specification. + In version 3.2, some terminology was changed and the Adler-32 + sample code was rewritten for clarity. In version 3.3, the + support for a preset dictionary was introduced, and the + specification was converted to RFC style. + +2. Detailed specification + + 2.1. Overall conventions + + In the diagrams below, a box like this: + + +---+ + | | <-- the vertical bars might be missing + +---+ + + + + +Deutsch & Gailly Informational [Page 3] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + represents one byte; a box like this: + + +==============+ + | | + +==============+ + + represents a variable number of bytes. + + Bytes stored within a computer do not have a "bit order", since + they are always treated as a unit. However, a byte considered as + an integer between 0 and 255 does have a most- and least- + significant bit, and since we write numbers with the most- + significant digit on the left, we also write bytes with the most- + significant bit on the left. In the diagrams below, we number the + bits of a byte so that bit 0 is the least-significant bit, i.e., + the bits are numbered: + + +--------+ + |76543210| + +--------+ + + Within a computer, a number may occupy multiple bytes. All + multi-byte numbers in the format described here are stored with + the MOST-significant byte first (at the lower memory address). + For example, the decimal number 520 is stored as: + + 0 1 + +--------+--------+ + |00000010|00001000| + +--------+--------+ + ^ ^ + | | + | + less significant byte = 8 + + more significant byte = 2 x 256 + + 2.2. Data format + + A zlib stream has the following structure: + + 0 1 + +---+---+ + |CMF|FLG| (more-->) + +---+---+ + + + + + + + + +Deutsch & Gailly Informational [Page 4] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + (if FLG.FDICT set) + + 0 1 2 3 + +---+---+---+---+ + | DICTID | (more-->) + +---+---+---+---+ + + +=====================+---+---+---+---+ + |...compressed data...| ADLER32 | + +=====================+---+---+---+---+ + + Any data which may appear after ADLER32 are not part of the zlib + stream. + + CMF (Compression Method and flags) + This byte is divided into a 4-bit compression method and a 4- + bit information field depending on the compression method. + + bits 0 to 3 CM Compression method + bits 4 to 7 CINFO Compression info + + CM (Compression method) + This identifies the compression method used in the file. CM = 8 + denotes the "deflate" compression method with a window size up + to 32K. This is the method used by gzip and PNG (see + references [1] and [2] in Chapter 3, below, for the reference + documents). CM = 15 is reserved. It might be used in a future + version of this specification to indicate the presence of an + extra field before the compressed data. + + CINFO (Compression info) + For CM = 8, CINFO is the base-2 logarithm of the LZ77 window + size, minus eight (CINFO=7 indicates a 32K window size). Values + of CINFO above 7 are not allowed in this version of the + specification. CINFO is not defined in this specification for + CM not equal to 8. + + FLG (FLaGs) + This flag byte is divided as follows: + + bits 0 to 4 FCHECK (check bits for CMF and FLG) + bit 5 FDICT (preset dictionary) + bits 6 to 7 FLEVEL (compression level) + + The FCHECK value must be such that CMF and FLG, when viewed as + a 16-bit unsigned integer stored in MSB order (CMF*256 + FLG), + is a multiple of 31. + + + + +Deutsch & Gailly Informational [Page 5] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + FDICT (Preset dictionary) + If FDICT is set, a DICT dictionary identifier is present + immediately after the FLG byte. The dictionary is a sequence of + bytes which are initially fed to the compressor without + producing any compressed output. DICT is the Adler-32 checksum + of this sequence of bytes (see the definition of ADLER32 + below). The decompressor can use this identifier to determine + which dictionary has been used by the compressor. + + FLEVEL (Compression level) + These flags are available for use by specific compression + methods. The "deflate" method (CM = 8) sets these flags as + follows: + + 0 - compressor used fastest algorithm + 1 - compressor used fast algorithm + 2 - compressor used default algorithm + 3 - compressor used maximum compression, slowest algorithm + + The information in FLEVEL is not needed for decompression; it + is there to indicate if recompression might be worthwhile. + + compressed data + For compression method 8, the compressed data is stored in the + deflate compressed data format as described in the document + "DEFLATE Compressed Data Format Specification" by L. Peter + Deutsch. (See reference [3] in Chapter 3, below) + + Other compressed data formats are not specified in this version + of the zlib specification. + + ADLER32 (Adler-32 checksum) + This contains a checksum value of the uncompressed data + (excluding any dictionary data) computed according to Adler-32 + algorithm. This algorithm is a 32-bit extension and improvement + of the Fletcher algorithm, used in the ITU-T X.224 / ISO 8073 + standard. See references [4] and [5] in Chapter 3, below) + + Adler-32 is composed of two sums accumulated per byte: s1 is + the sum of all bytes, s2 is the sum of all s1 values. Both sums + are done modulo 65521. s1 is initialized to 1, s2 to zero. The + Adler-32 checksum is stored as s2*65536 + s1 in most- + significant-byte first (network) order. + + + + + + + + +Deutsch & Gailly Informational [Page 6] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + 2.3. Compliance + + A compliant compressor must produce streams with correct CMF, FLG + and ADLER32, but need not support preset dictionaries. When the + zlib data format is used as part of another standard data format, + the compressor may use only preset dictionaries that are specified + by this other data format. If this other format does not use the + preset dictionary feature, the compressor must not set the FDICT + flag. + + A compliant decompressor must check CMF, FLG, and ADLER32, and + provide an error indication if any of these have incorrect values. + A compliant decompressor must give an error indication if CM is + not one of the values defined in this specification (only the + value 8 is permitted in this version), since another value could + indicate the presence of new features that would cause subsequent + data to be interpreted incorrectly. A compliant decompressor must + give an error indication if FDICT is set and DICTID is not the + identifier of a known preset dictionary. A decompressor may + ignore FLEVEL and still be compliant. When the zlib data format + is being used as a part of another standard format, a compliant + decompressor must support all the preset dictionaries specified by + the other format. When the other format does not use the preset + dictionary feature, a compliant decompressor must reject any + stream in which the FDICT flag is set. + +3. References + + [1] Deutsch, L.P.,"GZIP Compressed Data Format Specification", + available in ftp://ftp.uu.net/pub/archiving/zip/doc/ + + [2] Thomas Boutell, "PNG (Portable Network Graphics) specification", + available in ftp://ftp.uu.net/graphics/png/documents/ + + [3] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification", + available in ftp://ftp.uu.net/pub/archiving/zip/doc/ + + [4] Fletcher, J. G., "An Arithmetic Checksum for Serial + Transmissions," IEEE Transactions on Communications, Vol. COM-30, + No. 1, January 1982, pp. 247-252. + + [5] ITU-T Recommendation X.224, Annex D, "Checksum Algorithms," + November, 1993, pp. 144, 145. (Available from + gopher://info.itu.ch). ITU-T X.244 is also the same as ISO 8073. + + + + + + + +Deutsch & Gailly Informational [Page 7] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + +4. Source code + + Source code for a C language implementation of a "zlib" compliant + library is available at ftp://ftp.uu.net/pub/archiving/zip/zlib/. + +5. Security Considerations + + A decoder that fails to check the ADLER32 checksum value may be + subject to undetected data corruption. + +6. Acknowledgements + + Trademarks cited in this document are the property of their + respective owners. + + Jean-Loup Gailly and Mark Adler designed the zlib format and wrote + the related software described in this specification. Glenn + Randers-Pehrson converted this document to RFC and HTML format. + +7. Authors' Addresses + + L. Peter Deutsch + Aladdin Enterprises + 203 Santa Margarita Ave. + Menlo Park, CA 94025 + + Phone: (415) 322-0103 (AM only) + FAX: (415) 322-1734 + EMail: <ghost@aladdin.com> + + + Jean-Loup Gailly + + EMail: <gzip@prep.ai.mit.edu> + + Questions about the technical content of this specification can be + sent by email to + + Jean-Loup Gailly <gzip@prep.ai.mit.edu> and + Mark Adler <madler@alumni.caltech.edu> + + Editorial comments on this specification can be sent by email to + + L. Peter Deutsch <ghost@aladdin.com> and + Glenn Randers-Pehrson <randeg@alumni.rpi.edu> + + + + + + +Deutsch & Gailly Informational [Page 8] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + +8. Appendix: Rationale + + 8.1. Preset dictionaries + + A preset dictionary is specially useful to compress short input + sequences. The compressor can take advantage of the dictionary + context to encode the input in a more compact manner. The + decompressor can be initialized with the appropriate context by + virtually decompressing a compressed version of the dictionary + without producing any output. However for certain compression + algorithms such as the deflate algorithm this operation can be + achieved without actually performing any decompression. + + The compressor and the decompressor must use exactly the same + dictionary. The dictionary may be fixed or may be chosen among a + certain number of predefined dictionaries, according to the kind + of input data. The decompressor can determine which dictionary has + been chosen by the compressor by checking the dictionary + identifier. This document does not specify the contents of + predefined dictionaries, since the optimal dictionaries are + application specific. Standard data formats using this feature of + the zlib specification must precisely define the allowed + dictionaries. + + 8.2. The Adler-32 algorithm + + The Adler-32 algorithm is much faster than the CRC32 algorithm yet + still provides an extremely low probability of undetected errors. + + The modulo on unsigned long accumulators can be delayed for 5552 + bytes, so the modulo operation time is negligible. If the bytes + are a, b, c, the second sum is 3a + 2b + c + 3, and so is position + and order sensitive, unlike the first sum, which is just a + checksum. That 65521 is prime is important to avoid a possible + large class of two-byte errors that leave the check unchanged. + (The Fletcher checksum uses 255, which is not prime and which also + makes the Fletcher check insensitive to single byte changes 0 <-> + 255.) + + The sum s1 is initialized to 1 instead of zero to make the length + of the sequence part of s2, so that the length does not have to be + checked separately. (Any sequence of zeroes has a Fletcher + checksum of zero.) + + + + + + + + +Deutsch & Gailly Informational [Page 9] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + +9. Appendix: Sample code + + The following C code computes the Adler-32 checksum of a data buffer. + It is written for clarity, not for speed. The sample code is in the + ANSI C programming language. Non C users may find it easier to read + with these hints: + + & Bitwise AND operator. + >> Bitwise right shift operator. When applied to an + unsigned quantity, as here, right shift inserts zero bit(s) + at the left. + << Bitwise left shift operator. Left shift inserts zero + bit(s) at the right. + ++ "n++" increments the variable n. + % modulo operator: a % b is the remainder of a divided by b. + + #define BASE 65521 /* largest prime smaller than 65536 */ + + /* + Update a running Adler-32 checksum with the bytes buf[0..len-1] + and return the updated checksum. The Adler-32 checksum should be + initialized to 1. + + Usage example: + + unsigned long adler = 1L; + + while (read_buffer(buffer, length) != EOF) { + adler = update_adler32(adler, buffer, length); + } + if (adler != original_adler) error(); + */ + unsigned long update_adler32(unsigned long adler, + unsigned char *buf, int len) + { + unsigned long s1 = adler & 0xffff; + unsigned long s2 = (adler >> 16) & 0xffff; + int n; + + for (n = 0; n < len; n++) { + s1 = (s1 + buf[n]) % BASE; + s2 = (s2 + s1) % BASE; + } + return (s2 << 16) + s1; + } + + /* Return the adler32 of the bytes buf[0..len-1] */ + + + + +Deutsch & Gailly Informational [Page 10] + +RFC 1950 ZLIB Compressed Data Format Specification May 1996 + + + unsigned long adler32(unsigned char *buf, int len) + { + return update_adler32(1L, buf, len); + } + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +Deutsch & Gailly Informational [Page 11] + diff --git a/3party/zlib/doc/rfc1951.txt b/3party/zlib/doc/rfc1951.txt new file mode 100644 index 0000000000..403c8c722f --- /dev/null +++ b/3party/zlib/doc/rfc1951.txt @@ -0,0 +1,955 @@ + + + + + + +Network Working Group P. Deutsch +Request for Comments: 1951 Aladdin Enterprises +Category: Informational May 1996 + + + DEFLATE Compressed Data Format Specification version 1.3 + +Status of This Memo + + This memo provides information for the Internet community. This memo + does not specify an Internet standard of any kind. Distribution of + this memo is unlimited. + +IESG Note: + + The IESG takes no position on the validity of any Intellectual + Property Rights statements contained in this document. + +Notices + + Copyright (c) 1996 L. Peter Deutsch + + Permission is granted to copy and distribute this document for any + purpose and without charge, including translations into other + languages and incorporation into compilations, provided that the + copyright notice and this notice are preserved, and that any + substantive changes or deletions from the original are clearly + marked. + + A pointer to the latest version of this and related documentation in + HTML format can be found at the URL + <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>. + +Abstract + + This specification defines a lossless compressed data format that + compresses data using a combination of the LZ77 algorithm and Huffman + coding, with efficiency comparable to the best currently available + general-purpose compression methods. The data can be produced or + consumed, even for an arbitrarily long sequentially presented input + data stream, using only an a priori bounded amount of intermediate + storage. The format can be implemented readily in a manner not + covered by patents. + + + + + + + + +Deutsch Informational [Page 1] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + +Table of Contents + + 1. Introduction ................................................... 2 + 1.1. Purpose ................................................... 2 + 1.2. Intended audience ......................................... 3 + 1.3. Scope ..................................................... 3 + 1.4. Compliance ................................................ 3 + 1.5. Definitions of terms and conventions used ................ 3 + 1.6. Changes from previous versions ............................ 4 + 2. Compressed representation overview ............................. 4 + 3. Detailed specification ......................................... 5 + 3.1. Overall conventions ....................................... 5 + 3.1.1. Packing into bytes .................................. 5 + 3.2. Compressed block format ................................... 6 + 3.2.1. Synopsis of prefix and Huffman coding ............... 6 + 3.2.2. Use of Huffman coding in the "deflate" format ....... 7 + 3.2.3. Details of block format ............................. 9 + 3.2.4. Non-compressed blocks (BTYPE=00) ................... 11 + 3.2.5. Compressed blocks (length and distance codes) ...... 11 + 3.2.6. Compression with fixed Huffman codes (BTYPE=01) .... 12 + 3.2.7. Compression with dynamic Huffman codes (BTYPE=10) .. 13 + 3.3. Compliance ............................................... 14 + 4. Compression algorithm details ................................. 14 + 5. References .................................................... 16 + 6. Security Considerations ....................................... 16 + 7. Source code ................................................... 16 + 8. Acknowledgements .............................................. 16 + 9. Author's Address .............................................. 17 + +1. Introduction + + 1.1. Purpose + + The purpose of this specification is to define a lossless + compressed data format that: + * Is independent of CPU type, operating system, file system, + and character set, and hence can be used for interchange; + * Can be produced or consumed, even for an arbitrarily long + sequentially presented input data stream, using only an a + priori bounded amount of intermediate storage, and hence + can be used in data communications or similar structures + such as Unix filters; + * Compresses data with efficiency comparable to the best + currently available general-purpose compression methods, + and in particular considerably better than the "compress" + program; + * Can be implemented readily in a manner not covered by + patents, and hence can be practiced freely; + + + +Deutsch Informational [Page 2] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + * Is compatible with the file format produced by the current + widely used gzip utility, in that conforming decompressors + will be able to read data produced by the existing gzip + compressor. + + The data format defined by this specification does not attempt to: + + * Allow random access to compressed data; + * Compress specialized data (e.g., raster graphics) as well + as the best currently available specialized algorithms. + + A simple counting argument shows that no lossless compression + algorithm can compress every possible input data set. For the + format defined here, the worst case expansion is 5 bytes per 32K- + byte block, i.e., a size increase of 0.015% for large data sets. + English text usually compresses by a factor of 2.5 to 3; + executable files usually compress somewhat less; graphical data + such as raster images may compress much more. + + 1.2. Intended audience + + This specification is intended for use by implementors of software + to compress data into "deflate" format and/or decompress data from + "deflate" format. + + The text of the specification assumes a basic background in + programming at the level of bits and other primitive data + representations. Familiarity with the technique of Huffman coding + is helpful but not required. + + 1.3. Scope + + The specification specifies a method for representing a sequence + of bytes as a (usually shorter) sequence of bits, and a method for + packing the latter bit sequence into bytes. + + 1.4. Compliance + + Unless otherwise indicated below, a compliant decompressor must be + able to accept and decompress any data set that conforms to all + the specifications presented here; a compliant compressor must + produce data sets that conform to all the specifications presented + here. + + 1.5. Definitions of terms and conventions used + + Byte: 8 bits stored or transmitted as a unit (same as an octet). + For this specification, a byte is exactly 8 bits, even on machines + + + +Deutsch Informational [Page 3] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + which store a character on a number of bits different from eight. + See below, for the numbering of bits within a byte. + + String: a sequence of arbitrary bytes. + + 1.6. Changes from previous versions + + There have been no technical changes to the deflate format since + version 1.1 of this specification. In version 1.2, some + terminology was changed. Version 1.3 is a conversion of the + specification to RFC style. + +2. Compressed representation overview + + A compressed data set consists of a series of blocks, corresponding + to successive blocks of input data. The block sizes are arbitrary, + except that non-compressible blocks are limited to 65,535 bytes. + + Each block is compressed using a combination of the LZ77 algorithm + and Huffman coding. The Huffman trees for each block are independent + of those for previous or subsequent blocks; the LZ77 algorithm may + use a reference to a duplicated string occurring in a previous block, + up to 32K input bytes before. + + Each block consists of two parts: a pair of Huffman code trees that + describe the representation of the compressed data part, and a + compressed data part. (The Huffman trees themselves are compressed + using Huffman encoding.) The compressed data consists of a series of + elements of two types: literal bytes (of strings that have not been + detected as duplicated within the previous 32K input bytes), and + pointers to duplicated strings, where a pointer is represented as a + pair <length, backward distance>. The representation used in the + "deflate" format limits distances to 32K bytes and lengths to 258 + bytes, but does not limit the size of a block, except for + uncompressible blocks, which are limited as noted above. + + Each type of value (literals, distances, and lengths) in the + compressed data is represented using a Huffman code, using one code + tree for literals and lengths and a separate code tree for distances. + The code trees for each block appear in a compact form just before + the compressed data for that block. + + + + + + + + + + +Deutsch Informational [Page 4] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + +3. Detailed specification + + 3.1. Overall conventions In the diagrams below, a box like this: + + +---+ + | | <-- the vertical bars might be missing + +---+ + + represents one byte; a box like this: + + +==============+ + | | + +==============+ + + represents a variable number of bytes. + + Bytes stored within a computer do not have a "bit order", since + they are always treated as a unit. However, a byte considered as + an integer between 0 and 255 does have a most- and least- + significant bit, and since we write numbers with the most- + significant digit on the left, we also write bytes with the most- + significant bit on the left. In the diagrams below, we number the + bits of a byte so that bit 0 is the least-significant bit, i.e., + the bits are numbered: + + +--------+ + |76543210| + +--------+ + + Within a computer, a number may occupy multiple bytes. All + multi-byte numbers in the format described here are stored with + the least-significant byte first (at the lower memory address). + For example, the decimal number 520 is stored as: + + 0 1 + +--------+--------+ + |00001000|00000010| + +--------+--------+ + ^ ^ + | | + | + more significant byte = 2 x 256 + + less significant byte = 8 + + 3.1.1. Packing into bytes + + This document does not address the issue of the order in which + bits of a byte are transmitted on a bit-sequential medium, + since the final data format described here is byte- rather than + + + +Deutsch Informational [Page 5] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + bit-oriented. However, we describe the compressed block format + in below, as a sequence of data elements of various bit + lengths, not a sequence of bytes. We must therefore specify + how to pack these data elements into bytes to form the final + compressed byte sequence: + + * Data elements are packed into bytes in order of + increasing bit number within the byte, i.e., starting + with the least-significant bit of the byte. + * Data elements other than Huffman codes are packed + starting with the least-significant bit of the data + element. + * Huffman codes are packed starting with the most- + significant bit of the code. + + In other words, if one were to print out the compressed data as + a sequence of bytes, starting with the first byte at the + *right* margin and proceeding to the *left*, with the most- + significant bit of each byte on the left as usual, one would be + able to parse the result from right to left, with fixed-width + elements in the correct MSB-to-LSB order and Huffman codes in + bit-reversed order (i.e., with the first bit of the code in the + relative LSB position). + + 3.2. Compressed block format + + 3.2.1. Synopsis of prefix and Huffman coding + + Prefix coding represents symbols from an a priori known + alphabet by bit sequences (codes), one code for each symbol, in + a manner such that different symbols may be represented by bit + sequences of different lengths, but a parser can always parse + an encoded string unambiguously symbol-by-symbol. + + We define a prefix code in terms of a binary tree in which the + two edges descending from each non-leaf node are labeled 0 and + 1 and in which the leaf nodes correspond one-for-one with (are + labeled with) the symbols of the alphabet; then the code for a + symbol is the sequence of 0's and 1's on the edges leading from + the root to the leaf labeled with that symbol. For example: + + + + + + + + + + + +Deutsch Informational [Page 6] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + /\ Symbol Code + 0 1 ------ ---- + / \ A 00 + /\ B B 1 + 0 1 C 011 + / \ D 010 + A /\ + 0 1 + / \ + D C + + A parser can decode the next symbol from an encoded input + stream by walking down the tree from the root, at each step + choosing the edge corresponding to the next input bit. + + Given an alphabet with known symbol frequencies, the Huffman + algorithm allows the construction of an optimal prefix code + (one which represents strings with those symbol frequencies + using the fewest bits of any possible prefix codes for that + alphabet). Such a code is called a Huffman code. (See + reference [1] in Chapter 5, references for additional + information on Huffman codes.) + + Note that in the "deflate" format, the Huffman codes for the + various alphabets must not exceed certain maximum code lengths. + This constraint complicates the algorithm for computing code + lengths from symbol frequencies. Again, see Chapter 5, + references for details. + + 3.2.2. Use of Huffman coding in the "deflate" format + + The Huffman codes used for each alphabet in the "deflate" + format have two additional rules: + + * All codes of a given bit length have lexicographically + consecutive values, in the same order as the symbols + they represent; + + * Shorter codes lexicographically precede longer codes. + + + + + + + + + + + + +Deutsch Informational [Page 7] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + We could recode the example above to follow this rule as + follows, assuming that the order of the alphabet is ABCD: + + Symbol Code + ------ ---- + A 10 + B 0 + C 110 + D 111 + + I.e., 0 precedes 10 which precedes 11x, and 110 and 111 are + lexicographically consecutive. + + Given this rule, we can define the Huffman code for an alphabet + just by giving the bit lengths of the codes for each symbol of + the alphabet in order; this is sufficient to determine the + actual codes. In our example, the code is completely defined + by the sequence of bit lengths (2, 1, 3, 3). The following + algorithm generates the codes as integers, intended to be read + from most- to least-significant bit. The code lengths are + initially in tree[I].Len; the codes are produced in + tree[I].Code. + + 1) Count the number of codes for each code length. Let + bl_count[N] be the number of codes of length N, N >= 1. + + 2) Find the numerical value of the smallest code for each + code length: + + code = 0; + bl_count[0] = 0; + for (bits = 1; bits <= MAX_BITS; bits++) { + code = (code + bl_count[bits-1]) << 1; + next_code[bits] = code; + } + + 3) Assign numerical values to all codes, using consecutive + values for all codes of the same length with the base + values determined at step 2. Codes that are never used + (which have a bit length of zero) must not be assigned a + value. + + for (n = 0; n <= max_code; n++) { + len = tree[n].Len; + if (len != 0) { + tree[n].Code = next_code[len]; + next_code[len]++; + } + + + +Deutsch Informational [Page 8] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + } + + Example: + + Consider the alphabet ABCDEFGH, with bit lengths (3, 3, 3, 3, + 3, 2, 4, 4). After step 1, we have: + + N bl_count[N] + - ----------- + 2 1 + 3 5 + 4 2 + + Step 2 computes the following next_code values: + + N next_code[N] + - ------------ + 1 0 + 2 0 + 3 2 + 4 14 + + Step 3 produces the following code values: + + Symbol Length Code + ------ ------ ---- + A 3 010 + B 3 011 + C 3 100 + D 3 101 + E 3 110 + F 2 00 + G 4 1110 + H 4 1111 + + 3.2.3. Details of block format + + Each block of compressed data begins with 3 header bits + containing the following data: + + first bit BFINAL + next 2 bits BTYPE + + Note that the header bits do not necessarily begin on a byte + boundary, since a block does not necessarily occupy an integral + number of bytes. + + + + + +Deutsch Informational [Page 9] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + BFINAL is set if and only if this is the last block of the data + set. + + BTYPE specifies how the data are compressed, as follows: + + 00 - no compression + 01 - compressed with fixed Huffman codes + 10 - compressed with dynamic Huffman codes + 11 - reserved (error) + + The only difference between the two compressed cases is how the + Huffman codes for the literal/length and distance alphabets are + defined. + + In all cases, the decoding algorithm for the actual data is as + follows: + + do + read block header from input stream. + if stored with no compression + skip any remaining bits in current partially + processed byte + read LEN and NLEN (see next section) + copy LEN bytes of data to output + otherwise + if compressed with dynamic Huffman codes + read representation of code trees (see + subsection below) + loop (until end of block code recognized) + decode literal/length value from input stream + if value < 256 + copy value (literal byte) to output stream + otherwise + if value = end of block (256) + break from loop + otherwise (value = 257..285) + decode distance from input stream + + move backwards distance bytes in the output + stream, and copy length bytes from this + position to the output stream. + end loop + while not last block + + Note that a duplicated string reference may refer to a string + in a previous block; i.e., the backward distance may cross one + or more block boundaries. However a distance cannot refer past + the beginning of the output stream. (An application using a + + + +Deutsch Informational [Page 10] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + preset dictionary might discard part of the output stream; a + distance can refer to that part of the output stream anyway) + Note also that the referenced string may overlap the current + position; for example, if the last 2 bytes decoded have values + X and Y, a string reference with <length = 5, distance = 2> + adds X,Y,X,Y,X to the output stream. + + We now specify each compression method in turn. + + 3.2.4. Non-compressed blocks (BTYPE=00) + + Any bits of input up to the next byte boundary are ignored. + The rest of the block consists of the following information: + + 0 1 2 3 4... + +---+---+---+---+================================+ + | LEN | NLEN |... LEN bytes of literal data...| + +---+---+---+---+================================+ + + LEN is the number of data bytes in the block. NLEN is the + one's complement of LEN. + + 3.2.5. Compressed blocks (length and distance codes) + + As noted above, encoded data blocks in the "deflate" format + consist of sequences of symbols drawn from three conceptually + distinct alphabets: either literal bytes, from the alphabet of + byte values (0..255), or <length, backward distance> pairs, + where the length is drawn from (3..258) and the distance is + drawn from (1..32,768). In fact, the literal and length + alphabets are merged into a single alphabet (0..285), where + values 0..255 represent literal bytes, the value 256 indicates + end-of-block, and values 257..285 represent length codes + (possibly in conjunction with extra bits following the symbol + code) as follows: + + + + + + + + + + + + + + + + +Deutsch Informational [Page 11] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + Extra Extra Extra + Code Bits Length(s) Code Bits Lengths Code Bits Length(s) + ---- ---- ------ ---- ---- ------- ---- ---- ------- + 257 0 3 267 1 15,16 277 4 67-82 + 258 0 4 268 1 17,18 278 4 83-98 + 259 0 5 269 2 19-22 279 4 99-114 + 260 0 6 270 2 23-26 280 4 115-130 + 261 0 7 271 2 27-30 281 5 131-162 + 262 0 8 272 2 31-34 282 5 163-194 + 263 0 9 273 3 35-42 283 5 195-226 + 264 0 10 274 3 43-50 284 5 227-257 + 265 1 11,12 275 3 51-58 285 0 258 + 266 1 13,14 276 3 59-66 + + The extra bits should be interpreted as a machine integer + stored with the most-significant bit first, e.g., bits 1110 + represent the value 14. + + Extra Extra Extra + Code Bits Dist Code Bits Dist Code Bits Distance + ---- ---- ---- ---- ---- ------ ---- ---- -------- + 0 0 1 10 4 33-48 20 9 1025-1536 + 1 0 2 11 4 49-64 21 9 1537-2048 + 2 0 3 12 5 65-96 22 10 2049-3072 + 3 0 4 13 5 97-128 23 10 3073-4096 + 4 1 5,6 14 6 129-192 24 11 4097-6144 + 5 1 7,8 15 6 193-256 25 11 6145-8192 + 6 2 9-12 16 7 257-384 26 12 8193-12288 + 7 2 13-16 17 7 385-512 27 12 12289-16384 + 8 3 17-24 18 8 513-768 28 13 16385-24576 + 9 3 25-32 19 8 769-1024 29 13 24577-32768 + + 3.2.6. Compression with fixed Huffman codes (BTYPE=01) + + The Huffman codes for the two alphabets are fixed, and are not + represented explicitly in the data. The Huffman code lengths + for the literal/length alphabet are: + + Lit Value Bits Codes + --------- ---- ----- + 0 - 143 8 00110000 through + 10111111 + 144 - 255 9 110010000 through + 111111111 + 256 - 279 7 0000000 through + 0010111 + 280 - 287 8 11000000 through + 11000111 + + + +Deutsch Informational [Page 12] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + The code lengths are sufficient to generate the actual codes, + as described above; we show the codes in the table for added + clarity. Literal/length values 286-287 will never actually + occur in the compressed data, but participate in the code + construction. + + Distance codes 0-31 are represented by (fixed-length) 5-bit + codes, with possible additional bits as shown in the table + shown in Paragraph 3.2.5, above. Note that distance codes 30- + 31 will never actually occur in the compressed data. + + 3.2.7. Compression with dynamic Huffman codes (BTYPE=10) + + The Huffman codes for the two alphabets appear in the block + immediately after the header bits and before the actual + compressed data, first the literal/length code and then the + distance code. Each code is defined by a sequence of code + lengths, as discussed in Paragraph 3.2.2, above. For even + greater compactness, the code length sequences themselves are + compressed using a Huffman code. The alphabet for code lengths + is as follows: + + 0 - 15: Represent code lengths of 0 - 15 + 16: Copy the previous code length 3 - 6 times. + The next 2 bits indicate repeat length + (0 = 3, ... , 3 = 6) + Example: Codes 8, 16 (+2 bits 11), + 16 (+2 bits 10) will expand to + 12 code lengths of 8 (1 + 6 + 5) + 17: Repeat a code length of 0 for 3 - 10 times. + (3 bits of length) + 18: Repeat a code length of 0 for 11 - 138 times + (7 bits of length) + + A code length of 0 indicates that the corresponding symbol in + the literal/length or distance alphabet will not occur in the + block, and should not participate in the Huffman code + construction algorithm given earlier. If only one distance + code is used, it is encoded using one bit, not zero bits; in + this case there is a single code length of one, with one unused + code. One distance code of zero bits means that there are no + distance codes used at all (the data is all literals). + + We can now define the format of the block: + + 5 Bits: HLIT, # of Literal/Length codes - 257 (257 - 286) + 5 Bits: HDIST, # of Distance codes - 1 (1 - 32) + 4 Bits: HCLEN, # of Code Length codes - 4 (4 - 19) + + + +Deutsch Informational [Page 13] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + (HCLEN + 4) x 3 bits: code lengths for the code length + alphabet given just above, in the order: 16, 17, 18, + 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 + + These code lengths are interpreted as 3-bit integers + (0-7); as above, a code length of 0 means the + corresponding symbol (literal/length or distance code + length) is not used. + + HLIT + 257 code lengths for the literal/length alphabet, + encoded using the code length Huffman code + + HDIST + 1 code lengths for the distance alphabet, + encoded using the code length Huffman code + + The actual compressed data of the block, + encoded using the literal/length and distance Huffman + codes + + The literal/length symbol 256 (end of data), + encoded using the literal/length Huffman code + + The code length repeat codes can cross from HLIT + 257 to the + HDIST + 1 code lengths. In other words, all code lengths form + a single sequence of HLIT + HDIST + 258 values. + + 3.3. Compliance + + A compressor may limit further the ranges of values specified in + the previous section and still be compliant; for example, it may + limit the range of backward pointers to some value smaller than + 32K. Similarly, a compressor may limit the size of blocks so that + a compressible block fits in memory. + + A compliant decompressor must accept the full range of possible + values defined in the previous section, and must accept blocks of + arbitrary size. + +4. Compression algorithm details + + While it is the intent of this document to define the "deflate" + compressed data format without reference to any particular + compression algorithm, the format is related to the compressed + formats produced by LZ77 (Lempel-Ziv 1977, see reference [2] below); + since many variations of LZ77 are patented, it is strongly + recommended that the implementor of a compressor follow the general + algorithm presented here, which is known not to be patented per se. + The material in this section is not part of the definition of the + + + +Deutsch Informational [Page 14] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + + specification per se, and a compressor need not follow it in order to + be compliant. + + The compressor terminates a block when it determines that starting a + new block with fresh trees would be useful, or when the block size + fills up the compressor's block buffer. + + The compressor uses a chained hash table to find duplicated strings, + using a hash function that operates on 3-byte sequences. At any + given point during compression, let XYZ be the next 3 input bytes to + be examined (not necessarily all different, of course). First, the + compressor examines the hash chain for XYZ. If the chain is empty, + the compressor simply writes out X as a literal byte and advances one + byte in the input. If the hash chain is not empty, indicating that + the sequence XYZ (or, if we are unlucky, some other 3 bytes with the + same hash function value) has occurred recently, the compressor + compares all strings on the XYZ hash chain with the actual input data + sequence starting at the current point, and selects the longest + match. + + The compressor searches the hash chains starting with the most recent + strings, to favor small distances and thus take advantage of the + Huffman encoding. The hash chains are singly linked. There are no + deletions from the hash chains; the algorithm simply discards matches + that are too old. To avoid a worst-case situation, very long hash + chains are arbitrarily truncated at a certain length, determined by a + run-time parameter. + + To improve overall compression, the compressor optionally defers the + selection of matches ("lazy matching"): after a match of length N has + been found, the compressor searches for a longer match starting at + the next input byte. If it finds a longer match, it truncates the + previous match to a length of one (thus producing a single literal + byte) and then emits the longer match. Otherwise, it emits the + original match, and, as described above, advances N bytes before + continuing. + + Run-time parameters also control this "lazy match" procedure. If + compression ratio is most important, the compressor attempts a + complete second search regardless of the length of the first match. + In the normal case, if the current match is "long enough", the + compressor reduces the search for a longer match, thus speeding up + the process. If speed is most important, the compressor inserts new + strings in the hash table only when no match was found, or when the + match is not "too long". This degrades the compression ratio but + saves time since there are both fewer insertions and fewer searches. + + + + + +Deutsch Informational [Page 15] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + +5. References + + [1] Huffman, D. A., "A Method for the Construction of Minimum + Redundancy Codes", Proceedings of the Institute of Radio + Engineers, September 1952, Volume 40, Number 9, pp. 1098-1101. + + [2] Ziv J., Lempel A., "A Universal Algorithm for Sequential Data + Compression", IEEE Transactions on Information Theory, Vol. 23, + No. 3, pp. 337-343. + + [3] Gailly, J.-L., and Adler, M., ZLIB documentation and sources, + available in ftp://ftp.uu.net/pub/archiving/zip/doc/ + + [4] Gailly, J.-L., and Adler, M., GZIP documentation and sources, + available as gzip-*.tar in ftp://prep.ai.mit.edu/pub/gnu/ + + [5] Schwartz, E. S., and Kallick, B. "Generating a canonical prefix + encoding." Comm. ACM, 7,3 (Mar. 1964), pp. 166-169. + + [6] Hirschberg and Lelewer, "Efficient decoding of prefix codes," + Comm. ACM, 33,4, April 1990, pp. 449-459. + +6. Security Considerations + + Any data compression method involves the reduction of redundancy in + the data. Consequently, any corruption of the data is likely to have + severe effects and be difficult to correct. Uncompressed text, on + the other hand, will probably still be readable despite the presence + of some corrupted bytes. + + It is recommended that systems using this data format provide some + means of validating the integrity of the compressed data. See + reference [3], for example. + +7. Source code + + Source code for a C language implementation of a "deflate" compliant + compressor and decompressor is available within the zlib package at + ftp://ftp.uu.net/pub/archiving/zip/zlib/. + +8. Acknowledgements + + Trademarks cited in this document are the property of their + respective owners. + + Phil Katz designed the deflate format. Jean-Loup Gailly and Mark + Adler wrote the related software described in this specification. + Glenn Randers-Pehrson converted this document to RFC and HTML format. + + + +Deutsch Informational [Page 16] + +RFC 1951 DEFLATE Compressed Data Format Specification May 1996 + + +9. Author's Address + + L. Peter Deutsch + Aladdin Enterprises + 203 Santa Margarita Ave. + Menlo Park, CA 94025 + + Phone: (415) 322-0103 (AM only) + FAX: (415) 322-1734 + EMail: <ghost@aladdin.com> + + Questions about the technical content of this specification can be + sent by email to: + + Jean-Loup Gailly <gzip@prep.ai.mit.edu> and + Mark Adler <madler@alumni.caltech.edu> + + Editorial comments on this specification can be sent by email to: + + L. Peter Deutsch <ghost@aladdin.com> and + Glenn Randers-Pehrson <randeg@alumni.rpi.edu> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +Deutsch Informational [Page 17] + diff --git a/3party/zlib/doc/rfc1952.txt b/3party/zlib/doc/rfc1952.txt new file mode 100644 index 0000000000..a8e51b4567 --- /dev/null +++ b/3party/zlib/doc/rfc1952.txt @@ -0,0 +1,675 @@ + + + + + + +Network Working Group P. Deutsch +Request for Comments: 1952 Aladdin Enterprises +Category: Informational May 1996 + + + GZIP file format specification version 4.3 + +Status of This Memo + + This memo provides information for the Internet community. This memo + does not specify an Internet standard of any kind. Distribution of + this memo is unlimited. + +IESG Note: + + The IESG takes no position on the validity of any Intellectual + Property Rights statements contained in this document. + +Notices + + Copyright (c) 1996 L. Peter Deutsch + + Permission is granted to copy and distribute this document for any + purpose and without charge, including translations into other + languages and incorporation into compilations, provided that the + copyright notice and this notice are preserved, and that any + substantive changes or deletions from the original are clearly + marked. + + A pointer to the latest version of this and related documentation in + HTML format can be found at the URL + <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>. + +Abstract + + This specification defines a lossless compressed data format that is + compatible with the widely used GZIP utility. The format includes a + cyclic redundancy check value for detecting data corruption. The + format presently uses the DEFLATE method of compression but can be + easily extended to use other compression methods. The format can be + implemented readily in a manner not covered by patents. + + + + + + + + + + +Deutsch Informational [Page 1] + +RFC 1952 GZIP File Format Specification May 1996 + + +Table of Contents + + 1. Introduction ................................................... 2 + 1.1. Purpose ................................................... 2 + 1.2. Intended audience ......................................... 3 + 1.3. Scope ..................................................... 3 + 1.4. Compliance ................................................ 3 + 1.5. Definitions of terms and conventions used ................. 3 + 1.6. Changes from previous versions ............................ 3 + 2. Detailed specification ......................................... 4 + 2.1. Overall conventions ....................................... 4 + 2.2. File format ............................................... 5 + 2.3. Member format ............................................. 5 + 2.3.1. Member header and trailer ........................... 6 + 2.3.1.1. Extra field ................................... 8 + 2.3.1.2. Compliance .................................... 9 + 3. References .................................................. 9 + 4. Security Considerations .................................... 10 + 5. Acknowledgements ........................................... 10 + 6. Author's Address ........................................... 10 + 7. Appendix: Jean-Loup Gailly's gzip utility .................. 11 + 8. Appendix: Sample CRC Code .................................. 11 + +1. Introduction + + 1.1. Purpose + + The purpose of this specification is to define a lossless + compressed data format that: + + * Is independent of CPU type, operating system, file system, + and character set, and hence can be used for interchange; + * Can compress or decompress a data stream (as opposed to a + randomly accessible file) to produce another data stream, + using only an a priori bounded amount of intermediate + storage, and hence can be used in data communications or + similar structures such as Unix filters; + * Compresses data with efficiency comparable to the best + currently available general-purpose compression methods, + and in particular considerably better than the "compress" + program; + * Can be implemented readily in a manner not covered by + patents, and hence can be practiced freely; + * Is compatible with the file format produced by the current + widely used gzip utility, in that conforming decompressors + will be able to read data produced by the existing gzip + compressor. + + + + +Deutsch Informational [Page 2] + +RFC 1952 GZIP File Format Specification May 1996 + + + The data format defined by this specification does not attempt to: + + * Provide random access to compressed data; + * Compress specialized data (e.g., raster graphics) as well as + the best currently available specialized algorithms. + + 1.2. Intended audience + + This specification is intended for use by implementors of software + to compress data into gzip format and/or decompress data from gzip + format. + + The text of the specification assumes a basic background in + programming at the level of bits and other primitive data + representations. + + 1.3. Scope + + The specification specifies a compression method and a file format + (the latter assuming only that a file can store a sequence of + arbitrary bytes). It does not specify any particular interface to + a file system or anything about character sets or encodings + (except for file names and comments, which are optional). + + 1.4. Compliance + + Unless otherwise indicated below, a compliant decompressor must be + able to accept and decompress any file that conforms to all the + specifications presented here; a compliant compressor must produce + files that conform to all the specifications presented here. The + material in the appendices is not part of the specification per se + and is not relevant to compliance. + + 1.5. Definitions of terms and conventions used + + byte: 8 bits stored or transmitted as a unit (same as an octet). + (For this specification, a byte is exactly 8 bits, even on + machines which store a character on a number of bits different + from 8.) See below for the numbering of bits within a byte. + + 1.6. Changes from previous versions + + There have been no technical changes to the gzip format since + version 4.1 of this specification. In version 4.2, some + terminology was changed, and the sample CRC code was rewritten for + clarity and to eliminate the requirement for the caller to do pre- + and post-conditioning. Version 4.3 is a conversion of the + specification to RFC style. + + + +Deutsch Informational [Page 3] + +RFC 1952 GZIP File Format Specification May 1996 + + +2. Detailed specification + + 2.1. Overall conventions + + In the diagrams below, a box like this: + + +---+ + | | <-- the vertical bars might be missing + +---+ + + represents one byte; a box like this: + + +==============+ + | | + +==============+ + + represents a variable number of bytes. + + Bytes stored within a computer do not have a "bit order", since + they are always treated as a unit. However, a byte considered as + an integer between 0 and 255 does have a most- and least- + significant bit, and since we write numbers with the most- + significant digit on the left, we also write bytes with the most- + significant bit on the left. In the diagrams below, we number the + bits of a byte so that bit 0 is the least-significant bit, i.e., + the bits are numbered: + + +--------+ + |76543210| + +--------+ + + This document does not address the issue of the order in which + bits of a byte are transmitted on a bit-sequential medium, since + the data format described here is byte- rather than bit-oriented. + + Within a computer, a number may occupy multiple bytes. All + multi-byte numbers in the format described here are stored with + the least-significant byte first (at the lower memory address). + For example, the decimal number 520 is stored as: + + 0 1 + +--------+--------+ + |00001000|00000010| + +--------+--------+ + ^ ^ + | | + | + more significant byte = 2 x 256 + + less significant byte = 8 + + + +Deutsch Informational [Page 4] + +RFC 1952 GZIP File Format Specification May 1996 + + + 2.2. File format + + A gzip file consists of a series of "members" (compressed data + sets). The format of each member is specified in the following + section. The members simply appear one after another in the file, + with no additional information before, between, or after them. + + 2.3. Member format + + Each member has the following structure: + + +---+---+---+---+---+---+---+---+---+---+ + |ID1|ID2|CM |FLG| MTIME |XFL|OS | (more-->) + +---+---+---+---+---+---+---+---+---+---+ + + (if FLG.FEXTRA set) + + +---+---+=================================+ + | XLEN |...XLEN bytes of "extra field"...| (more-->) + +---+---+=================================+ + + (if FLG.FNAME set) + + +=========================================+ + |...original file name, zero-terminated...| (more-->) + +=========================================+ + + (if FLG.FCOMMENT set) + + +===================================+ + |...file comment, zero-terminated...| (more-->) + +===================================+ + + (if FLG.FHCRC set) + + +---+---+ + | CRC16 | + +---+---+ + + +=======================+ + |...compressed blocks...| (more-->) + +=======================+ + + 0 1 2 3 4 5 6 7 + +---+---+---+---+---+---+---+---+ + | CRC32 | ISIZE | + +---+---+---+---+---+---+---+---+ + + + + +Deutsch Informational [Page 5] + +RFC 1952 GZIP File Format Specification May 1996 + + + 2.3.1. Member header and trailer + + ID1 (IDentification 1) + ID2 (IDentification 2) + These have the fixed values ID1 = 31 (0x1f, \037), ID2 = 139 + (0x8b, \213), to identify the file as being in gzip format. + + CM (Compression Method) + This identifies the compression method used in the file. CM + = 0-7 are reserved. CM = 8 denotes the "deflate" + compression method, which is the one customarily used by + gzip and which is documented elsewhere. + + FLG (FLaGs) + This flag byte is divided into individual bits as follows: + + bit 0 FTEXT + bit 1 FHCRC + bit 2 FEXTRA + bit 3 FNAME + bit 4 FCOMMENT + bit 5 reserved + bit 6 reserved + bit 7 reserved + + If FTEXT is set, the file is probably ASCII text. This is + an optional indication, which the compressor may set by + checking a small amount of the input data to see whether any + non-ASCII characters are present. In case of doubt, FTEXT + is cleared, indicating binary data. For systems which have + different file formats for ascii text and binary data, the + decompressor can use FTEXT to choose the appropriate format. + We deliberately do not specify the algorithm used to set + this bit, since a compressor always has the option of + leaving it cleared and a decompressor always has the option + of ignoring it and letting some other program handle issues + of data conversion. + + If FHCRC is set, a CRC16 for the gzip header is present, + immediately before the compressed data. The CRC16 consists + of the two least significant bytes of the CRC32 for all + bytes of the gzip header up to and not including the CRC16. + [The FHCRC bit was never set by versions of gzip up to + 1.2.4, even though it was documented with a different + meaning in gzip 1.2.4.] + + If FEXTRA is set, optional extra fields are present, as + described in a following section. + + + +Deutsch Informational [Page 6] + +RFC 1952 GZIP File Format Specification May 1996 + + + If FNAME is set, an original file name is present, + terminated by a zero byte. The name must consist of ISO + 8859-1 (LATIN-1) characters; on operating systems using + EBCDIC or any other character set for file names, the name + must be translated to the ISO LATIN-1 character set. This + is the original name of the file being compressed, with any + directory components removed, and, if the file being + compressed is on a file system with case insensitive names, + forced to lower case. There is no original file name if the + data was compressed from a source other than a named file; + for example, if the source was stdin on a Unix system, there + is no file name. + + If FCOMMENT is set, a zero-terminated file comment is + present. This comment is not interpreted; it is only + intended for human consumption. The comment must consist of + ISO 8859-1 (LATIN-1) characters. Line breaks should be + denoted by a single line feed character (10 decimal). + + Reserved FLG bits must be zero. + + MTIME (Modification TIME) + This gives the most recent modification time of the original + file being compressed. The time is in Unix format, i.e., + seconds since 00:00:00 GMT, Jan. 1, 1970. (Note that this + may cause problems for MS-DOS and other systems that use + local rather than Universal time.) If the compressed data + did not come from a file, MTIME is set to the time at which + compression started. MTIME = 0 means no time stamp is + available. + + XFL (eXtra FLags) + These flags are available for use by specific compression + methods. The "deflate" method (CM = 8) sets these flags as + follows: + + XFL = 2 - compressor used maximum compression, + slowest algorithm + XFL = 4 - compressor used fastest algorithm + + OS (Operating System) + This identifies the type of file system on which compression + took place. This may be useful in determining end-of-line + convention for text files. The currently defined values are + as follows: + + + + + + +Deutsch Informational [Page 7] + +RFC 1952 GZIP File Format Specification May 1996 + + + 0 - FAT filesystem (MS-DOS, OS/2, NT/Win32) + 1 - Amiga + 2 - VMS (or OpenVMS) + 3 - Unix + 4 - VM/CMS + 5 - Atari TOS + 6 - HPFS filesystem (OS/2, NT) + 7 - Macintosh + 8 - Z-System + 9 - CP/M + 10 - TOPS-20 + 11 - NTFS filesystem (NT) + 12 - QDOS + 13 - Acorn RISCOS + 255 - unknown + + XLEN (eXtra LENgth) + If FLG.FEXTRA is set, this gives the length of the optional + extra field. See below for details. + + CRC32 (CRC-32) + This contains a Cyclic Redundancy Check value of the + uncompressed data computed according to CRC-32 algorithm + used in the ISO 3309 standard and in section 8.1.1.6.2 of + ITU-T recommendation V.42. (See http://www.iso.ch for + ordering ISO documents. See gopher://info.itu.ch for an + online version of ITU-T V.42.) + + ISIZE (Input SIZE) + This contains the size of the original (uncompressed) input + data modulo 2^32. + + 2.3.1.1. Extra field + + If the FLG.FEXTRA bit is set, an "extra field" is present in + the header, with total length XLEN bytes. It consists of a + series of subfields, each of the form: + + +---+---+---+---+==================================+ + |SI1|SI2| LEN |... LEN bytes of subfield data ...| + +---+---+---+---+==================================+ + + SI1 and SI2 provide a subfield ID, typically two ASCII letters + with some mnemonic value. Jean-Loup Gailly + <gzip@prep.ai.mit.edu> is maintaining a registry of subfield + IDs; please send him any subfield ID you wish to use. Subfield + IDs with SI2 = 0 are reserved for future use. The following + IDs are currently defined: + + + +Deutsch Informational [Page 8] + +RFC 1952 GZIP File Format Specification May 1996 + + + SI1 SI2 Data + ---------- ---------- ---- + 0x41 ('A') 0x70 ('P') Apollo file type information + + LEN gives the length of the subfield data, excluding the 4 + initial bytes. + + 2.3.1.2. Compliance + + A compliant compressor must produce files with correct ID1, + ID2, CM, CRC32, and ISIZE, but may set all the other fields in + the fixed-length part of the header to default values (255 for + OS, 0 for all others). The compressor must set all reserved + bits to zero. + + A compliant decompressor must check ID1, ID2, and CM, and + provide an error indication if any of these have incorrect + values. It must examine FEXTRA/XLEN, FNAME, FCOMMENT and FHCRC + at least so it can skip over the optional fields if they are + present. It need not examine any other part of the header or + trailer; in particular, a decompressor may ignore FTEXT and OS + and always produce binary output, and still be compliant. A + compliant decompressor must give an error indication if any + reserved bit is non-zero, since such a bit could indicate the + presence of a new field that would cause subsequent data to be + interpreted incorrectly. + +3. References + + [1] "Information Processing - 8-bit single-byte coded graphic + character sets - Part 1: Latin alphabet No.1" (ISO 8859-1:1987). + The ISO 8859-1 (Latin-1) character set is a superset of 7-bit + ASCII. Files defining this character set are available as + iso_8859-1.* in ftp://ftp.uu.net/graphics/png/documents/ + + [2] ISO 3309 + + [3] ITU-T recommendation V.42 + + [4] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification", + available in ftp://ftp.uu.net/pub/archiving/zip/doc/ + + [5] Gailly, J.-L., GZIP documentation, available as gzip-*.tar in + ftp://prep.ai.mit.edu/pub/gnu/ + + [6] Sarwate, D.V., "Computation of Cyclic Redundancy Checks via Table + Look-Up", Communications of the ACM, 31(8), pp.1008-1013. + + + + +Deutsch Informational [Page 9] + +RFC 1952 GZIP File Format Specification May 1996 + + + [7] Schwaderer, W.D., "CRC Calculation", April 85 PC Tech Journal, + pp.118-133. + + [8] ftp://ftp.adelaide.edu.au/pub/rocksoft/papers/crc_v3.txt, + describing the CRC concept. + +4. Security Considerations + + Any data compression method involves the reduction of redundancy in + the data. Consequently, any corruption of the data is likely to have + severe effects and be difficult to correct. Uncompressed text, on + the other hand, will probably still be readable despite the presence + of some corrupted bytes. + + It is recommended that systems using this data format provide some + means of validating the integrity of the compressed data, such as by + setting and checking the CRC-32 check value. + +5. Acknowledgements + + Trademarks cited in this document are the property of their + respective owners. + + Jean-Loup Gailly designed the gzip format and wrote, with Mark Adler, + the related software described in this specification. Glenn + Randers-Pehrson converted this document to RFC and HTML format. + +6. Author's Address + + L. Peter Deutsch + Aladdin Enterprises + 203 Santa Margarita Ave. + Menlo Park, CA 94025 + + Phone: (415) 322-0103 (AM only) + FAX: (415) 322-1734 + EMail: <ghost@aladdin.com> + + Questions about the technical content of this specification can be + sent by email to: + + Jean-Loup Gailly <gzip@prep.ai.mit.edu> and + Mark Adler <madler@alumni.caltech.edu> + + Editorial comments on this specification can be sent by email to: + + L. Peter Deutsch <ghost@aladdin.com> and + Glenn Randers-Pehrson <randeg@alumni.rpi.edu> + + + +Deutsch Informational [Page 10] + +RFC 1952 GZIP File Format Specification May 1996 + + +7. Appendix: Jean-Loup Gailly's gzip utility + + The most widely used implementation of gzip compression, and the + original documentation on which this specification is based, were + created by Jean-Loup Gailly <gzip@prep.ai.mit.edu>. Since this + implementation is a de facto standard, we mention some more of its + features here. Again, the material in this section is not part of + the specification per se, and implementations need not follow it to + be compliant. + + When compressing or decompressing a file, gzip preserves the + protection, ownership, and modification time attributes on the local + file system, since there is no provision for representing protection + attributes in the gzip file format itself. Since the file format + includes a modification time, the gzip decompressor provides a + command line switch that assigns the modification time from the file, + rather than the local modification time of the compressed input, to + the decompressed output. + +8. Appendix: Sample CRC Code + + The following sample code represents a practical implementation of + the CRC (Cyclic Redundancy Check). (See also ISO 3309 and ITU-T V.42 + for a formal specification.) + + The sample code is in the ANSI C programming language. Non C users + may find it easier to read with these hints: + + & Bitwise AND operator. + ^ Bitwise exclusive-OR operator. + >> Bitwise right shift operator. When applied to an + unsigned quantity, as here, right shift inserts zero + bit(s) at the left. + ! Logical NOT operator. + ++ "n++" increments the variable n. + 0xNNN 0x introduces a hexadecimal (base 16) constant. + Suffix L indicates a long value (at least 32 bits). + + /* Table of CRCs of all 8-bit messages. */ + unsigned long crc_table[256]; + + /* Flag: has the table been computed? Initially false. */ + int crc_table_computed = 0; + + /* Make the table for a fast CRC. */ + void make_crc_table(void) + { + unsigned long c; + + + +Deutsch Informational [Page 11] + +RFC 1952 GZIP File Format Specification May 1996 + + + int n, k; + for (n = 0; n < 256; n++) { + c = (unsigned long) n; + for (k = 0; k < 8; k++) { + if (c & 1) { + c = 0xedb88320L ^ (c >> 1); + } else { + c = c >> 1; + } + } + crc_table[n] = c; + } + crc_table_computed = 1; + } + + /* + Update a running crc with the bytes buf[0..len-1] and return + the updated crc. The crc should be initialized to zero. Pre- and + post-conditioning (one's complement) is performed within this + function so it shouldn't be done by the caller. Usage example: + + unsigned long crc = 0L; + + while (read_buffer(buffer, length) != EOF) { + crc = update_crc(crc, buffer, length); + } + if (crc != original_crc) error(); + */ + unsigned long update_crc(unsigned long crc, + unsigned char *buf, int len) + { + unsigned long c = crc ^ 0xffffffffL; + int n; + + if (!crc_table_computed) + make_crc_table(); + for (n = 0; n < len; n++) { + c = crc_table[(c ^ buf[n]) & 0xff] ^ (c >> 8); + } + return c ^ 0xffffffffL; + } + + /* Return the CRC of the bytes buf[0..len-1]. */ + unsigned long crc(unsigned char *buf, int len) + { + return update_crc(0L, buf, len); + } + + + + +Deutsch Informational [Page 12] + diff --git a/3party/zlib/doc/txtvsbin.txt b/3party/zlib/doc/txtvsbin.txt new file mode 100644 index 0000000000..3d0f0634f7 --- /dev/null +++ b/3party/zlib/doc/txtvsbin.txt @@ -0,0 +1,107 @@ +A Fast Method for Identifying Plain Text Files +============================================== + + +Introduction +------------ + +Given a file coming from an unknown source, it is sometimes desirable +to find out whether the format of that file is plain text. Although +this may appear like a simple task, a fully accurate detection of the +file type requires heavy-duty semantic analysis on the file contents. +It is, however, possible to obtain satisfactory results by employing +various heuristics. + +Previous versions of PKZip and other zip-compatible compression tools +were using a crude detection scheme: if more than 80% (4/5) of the bytes +found in a certain buffer are within the range [7..127], the file is +labeled as plain text, otherwise it is labeled as binary. A prominent +limitation of this scheme is the restriction to Latin-based alphabets. +Other alphabets, like Greek, Cyrillic or Asian, make extensive use of +the bytes within the range [128..255], and texts using these alphabets +are most often misidentified by this scheme; in other words, the rate +of false negatives is sometimes too high, which means that the recall +is low. Another weakness of this scheme is a reduced precision, due to +the false positives that may occur when binary files containing large +amounts of textual characters are misidentified as plain text. + +In this article we propose a new, simple detection scheme that features +a much increased precision and a near-100% recall. This scheme is +designed to work on ASCII, Unicode and other ASCII-derived alphabets, +and it handles single-byte encodings (ISO-8859, MacRoman, KOI8, etc.) +and variable-sized encodings (ISO-2022, UTF-8, etc.). Wider encodings +(UCS-2/UTF-16 and UCS-4/UTF-32) are not handled, however. + + +The Algorithm +------------- + +The algorithm works by dividing the set of bytecodes [0..255] into three +categories: +- The white list of textual bytecodes: + 9 (TAB), 10 (LF), 13 (CR), 32 (SPACE) to 255. +- The gray list of tolerated bytecodes: + 7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB), 27 (ESC). +- The black list of undesired, non-textual bytecodes: + 0 (NUL) to 6, 14 to 31. + +If a file contains at least one byte that belongs to the white list and +no byte that belongs to the black list, then the file is categorized as +plain text; otherwise, it is categorized as binary. (The boundary case, +when the file is empty, automatically falls into the latter category.) + + +Rationale +--------- + +The idea behind this algorithm relies on two observations. + +The first observation is that, although the full range of 7-bit codes +[0..127] is properly specified by the ASCII standard, most control +characters in the range [0..31] are not used in practice. The only +widely-used, almost universally-portable control codes are 9 (TAB), +10 (LF) and 13 (CR). There are a few more control codes that are +recognized on a reduced range of platforms and text viewers/editors: +7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB) and 27 (ESC); but these +codes are rarely (if ever) used alone, without being accompanied by +some printable text. Even the newer, portable text formats such as +XML avoid using control characters outside the list mentioned here. + +The second observation is that most of the binary files tend to contain +control characters, especially 0 (NUL). Even though the older text +detection schemes observe the presence of non-ASCII codes from the range +[128..255], the precision rarely has to suffer if this upper range is +labeled as textual, because the files that are genuinely binary tend to +contain both control characters and codes from the upper range. On the +other hand, the upper range needs to be labeled as textual, because it +is used by virtually all ASCII extensions. In particular, this range is +used for encoding non-Latin scripts. + +Since there is no counting involved, other than simply observing the +presence or the absence of some byte values, the algorithm produces +consistent results, regardless what alphabet encoding is being used. +(If counting were involved, it could be possible to obtain different +results on a text encoded, say, using ISO-8859-16 versus UTF-8.) + +There is an extra category of plain text files that are "polluted" with +one or more black-listed codes, either by mistake or by peculiar design +considerations. In such cases, a scheme that tolerates a small fraction +of black-listed codes would provide an increased recall (i.e. more true +positives). This, however, incurs a reduced precision overall, since +false positives are more likely to appear in binary files that contain +large chunks of textual data. Furthermore, "polluted" plain text should +be regarded as binary by general-purpose text detection schemes, because +general-purpose text processing algorithms might not be applicable. +Under this premise, it is safe to say that our detection method provides +a near-100% recall. + +Experiments have been run on many files coming from various platforms +and applications. We tried plain text files, system logs, source code, +formatted office documents, compiled object code, etc. The results +confirm the optimistic assumptions about the capabilities of this +algorithm. + + +-- +Cosmin Truta +Last updated: 2006-May-28 diff --git a/3party/zlib/examples/README.examples b/3party/zlib/examples/README.examples new file mode 100644 index 0000000000..56a31714e5 --- /dev/null +++ b/3party/zlib/examples/README.examples @@ -0,0 +1,49 @@ +This directory contains examples of the use of zlib and other relevant +programs and documentation. + +enough.c + calculation and justification of ENOUGH parameter in inftrees.h + - calculates the maximum table space used in inflate tree + construction over all possible Huffman codes + +fitblk.c + compress just enough input to nearly fill a requested output size + - zlib isn't designed to do this, but fitblk does it anyway + +gun.c + uncompress a gzip file + - illustrates the use of inflateBack() for high speed file-to-file + decompression using call-back functions + - is approximately twice as fast as gzip -d + - also provides Unix uncompress functionality, again twice as fast + +gzappend.c + append to a gzip file + - illustrates the use of the Z_BLOCK flush parameter for inflate() + - illustrates the use of deflatePrime() to start at any bit + +gzjoin.c + join gzip files without recalculating the crc or recompressing + - illustrates the use of the Z_BLOCK flush parameter for inflate() + - illustrates the use of crc32_combine() + +gzlog.c +gzlog.h + efficiently and robustly maintain a message log file in gzip format + - illustrates use of raw deflate, Z_PARTIAL_FLUSH, deflatePrime(), + and deflateSetDictionary() + - illustrates use of a gzip header extra field + +zlib_how.html + painfully comprehensive description of zpipe.c (see below) + - describes in excruciating detail the use of deflate() and inflate() + +zpipe.c + reads and writes zlib streams from stdin to stdout + - illustrates the proper use of deflate() and inflate() + - deeply commented in zlib_how.html (see above) + +zran.c + index a zlib or gzip stream and randomly access it + - illustrates the use of Z_BLOCK, inflatePrime(), and + inflateSetDictionary() to provide random access diff --git a/3party/zlib/examples/enough.c b/3party/zlib/examples/enough.c new file mode 100644 index 0000000000..c40410bade --- /dev/null +++ b/3party/zlib/examples/enough.c @@ -0,0 +1,569 @@ +/* enough.c -- determine the maximum size of inflate's Huffman code tables over + * all possible valid and complete Huffman codes, subject to a length limit. + * Copyright (C) 2007, 2008 Mark Adler + * Version 1.3 17 February 2008 Mark Adler + */ + +/* Version history: + 1.0 3 Jan 2007 First version (derived from codecount.c version 1.4) + 1.1 4 Jan 2007 Use faster incremental table usage computation + Prune examine() search on previously visited states + 1.2 5 Jan 2007 Comments clean up + As inflate does, decrease root for short codes + Refuse cases where inflate would increase root + 1.3 17 Feb 2008 Add argument for initial root table size + Fix bug for initial root table size == max - 1 + Use a macro to compute the history index + */ + +/* + Examine all possible Huffman codes for a given number of symbols and a + maximum code length in bits to determine the maximum table size for zilb's + inflate. Only complete Huffman codes are counted. + + Two codes are considered distinct if the vectors of the number of codes per + length are not identical. So permutations of the symbol assignments result + in the same code for the counting, as do permutations of the assignments of + the bit values to the codes (i.e. only canonical codes are counted). + + We build a code from shorter to longer lengths, determining how many symbols + are coded at each length. At each step, we have how many symbols remain to + be coded, what the last code length used was, and how many bit patterns of + that length remain unused. Then we add one to the code length and double the + number of unused patterns to graduate to the next code length. We then + assign all portions of the remaining symbols to that code length that + preserve the properties of a correct and eventually complete code. Those + properties are: we cannot use more bit patterns than are available; and when + all the symbols are used, there are exactly zero possible bit patterns + remaining. + + The inflate Huffman decoding algorithm uses two-level lookup tables for + speed. There is a single first-level table to decode codes up to root bits + in length (root == 9 in the current inflate implementation). The table + has 1 << root entries and is indexed by the next root bits of input. Codes + shorter than root bits have replicated table entries, so that the correct + entry is pointed to regardless of the bits that follow the short code. If + the code is longer than root bits, then the table entry points to a second- + level table. The size of that table is determined by the longest code with + that root-bit prefix. If that longest code has length len, then the table + has size 1 << (len - root), to index the remaining bits in that set of + codes. Each subsequent root-bit prefix then has its own sub-table. The + total number of table entries required by the code is calculated + incrementally as the number of codes at each bit length is populated. When + all of the codes are shorter than root bits, then root is reduced to the + longest code length, resulting in a single, smaller, one-level table. + + The inflate algorithm also provides for small values of root (relative to + the log2 of the number of symbols), where the shortest code has more bits + than root. In that case, root is increased to the length of the shortest + code. This program, by design, does not handle that case, so it is verified + that the number of symbols is less than 2^(root + 1). + + In order to speed up the examination (by about ten orders of magnitude for + the default arguments), the intermediate states in the build-up of a code + are remembered and previously visited branches are pruned. The memory + required for this will increase rapidly with the total number of symbols and + the maximum code length in bits. However this is a very small price to pay + for the vast speedup. + + First, all of the possible Huffman codes are counted, and reachable + intermediate states are noted by a non-zero count in a saved-results array. + Second, the intermediate states that lead to (root + 1) bit or longer codes + are used to look at all sub-codes from those junctures for their inflate + memory usage. (The amount of memory used is not affected by the number of + codes of root bits or less in length.) Third, the visited states in the + construction of those sub-codes and the associated calculation of the table + size is recalled in order to avoid recalculating from the same juncture. + Beginning the code examination at (root + 1) bit codes, which is enabled by + identifying the reachable nodes, accounts for about six of the orders of + magnitude of improvement for the default arguments. About another four + orders of magnitude come from not revisiting previous states. Out of + approximately 2x10^16 possible Huffman codes, only about 2x10^6 sub-codes + need to be examined to cover all of the possible table memory usage cases + for the default arguments of 286 symbols limited to 15-bit codes. + + Note that an unsigned long long type is used for counting. It is quite easy + to exceed the capacity of an eight-byte integer with a large number of + symbols and a large maximum code length, so multiple-precision arithmetic + would need to replace the unsigned long long arithmetic in that case. This + program will abort if an overflow occurs. The big_t type identifies where + the counting takes place. + + An unsigned long long type is also used for calculating the number of + possible codes remaining at the maximum length. This limits the maximum + code length to the number of bits in a long long minus the number of bits + needed to represent the symbols in a flat code. The code_t type identifies + where the bit pattern counting takes place. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> + +#define local static + +/* special data types */ +typedef unsigned long long big_t; /* type for code counting */ +typedef unsigned long long code_t; /* type for bit pattern counting */ +struct tab { /* type for been here check */ + size_t len; /* length of bit vector in char's */ + char *vec; /* allocated bit vector */ +}; + +/* The array for saving results, num[], is indexed with this triplet: + + syms: number of symbols remaining to code + left: number of available bit patterns at length len + len: number of bits in the codes currently being assigned + + Those indices are constrained thusly when saving results: + + syms: 3..totsym (totsym == total symbols to code) + left: 2..syms - 1, but only the evens (so syms == 8 -> 2, 4, 6) + len: 1..max - 1 (max == maximum code length in bits) + + syms == 2 is not saved since that immediately leads to a single code. left + must be even, since it represents the number of available bit patterns at + the current length, which is double the number at the previous length. + left ends at syms-1 since left == syms immediately results in a single code. + (left > sym is not allowed since that would result in an incomplete code.) + len is less than max, since the code completes immediately when len == max. + + The offset into the array is calculated for the three indices with the + first one (syms) being outermost, and the last one (len) being innermost. + We build the array with length max-1 lists for the len index, with syms-3 + of those for each symbol. There are totsym-2 of those, with each one + varying in length as a function of sym. See the calculation of index in + count() for the index, and the calculation of size in main() for the size + of the array. + + For the deflate example of 286 symbols limited to 15-bit codes, the array + has 284,284 entries, taking up 2.17 MB for an 8-byte big_t. More than + half of the space allocated for saved results is actually used -- not all + possible triplets are reached in the generation of valid Huffman codes. + */ + +/* The array for tracking visited states, done[], is itself indexed identically + to the num[] array as described above for the (syms, left, len) triplet. + Each element in the array is further indexed by the (mem, rem) doublet, + where mem is the amount of inflate table space used so far, and rem is the + remaining unused entries in the current inflate sub-table. Each indexed + element is simply one bit indicating whether the state has been visited or + not. Since the ranges for mem and rem are not known a priori, each bit + vector is of a variable size, and grows as needed to accommodate the visited + states. mem and rem are used to calculate a single index in a triangular + array. Since the range of mem is expected in the default case to be about + ten times larger than the range of rem, the array is skewed to reduce the + memory usage, with eight times the range for mem than for rem. See the + calculations for offset and bit in beenhere() for the details. + + For the deflate example of 286 symbols limited to 15-bit codes, the bit + vectors grow to total approximately 21 MB, in addition to the 4.3 MB done[] + array itself. + */ + +/* Globals to avoid propagating constants or constant pointers recursively */ +local int max; /* maximum allowed bit length for the codes */ +local int root; /* size of base code table in bits */ +local int large; /* largest code table so far */ +local size_t size; /* number of elements in num and done */ +local int *code; /* number of symbols assigned to each bit length */ +local big_t *num; /* saved results array for code counting */ +local struct tab *done; /* states already evaluated array */ + +/* Index function for num[] and done[] */ +#define INDEX(i,j,k) (((size_t)((i-1)>>1)*((i-2)>>1)+(j>>1)-1)*(max-1)+k-1) + +/* Free allocated space. Uses globals code, num, and done. */ +local void cleanup(void) +{ + size_t n; + + if (done != NULL) { + for (n = 0; n < size; n++) + if (done[n].len) + free(done[n].vec); + free(done); + } + if (num != NULL) + free(num); + if (code != NULL) + free(code); +} + +/* Return the number of possible Huffman codes using bit patterns of lengths + len through max inclusive, coding syms symbols, with left bit patterns of + length len unused -- return -1 if there is an overflow in the counting. + Keep a record of previous results in num to prevent repeating the same + calculation. Uses the globals max and num. */ +local big_t count(int syms, int len, int left) +{ + big_t sum; /* number of possible codes from this juncture */ + big_t got; /* value returned from count() */ + int least; /* least number of syms to use at this juncture */ + int most; /* most number of syms to use at this juncture */ + int use; /* number of bit patterns to use in next call */ + size_t index; /* index of this case in *num */ + + /* see if only one possible code */ + if (syms == left) + return 1; + + /* note and verify the expected state */ + assert(syms > left && left > 0 && len < max); + + /* see if we've done this one already */ + index = INDEX(syms, left, len); + got = num[index]; + if (got) + return got; /* we have -- return the saved result */ + + /* we need to use at least this many bit patterns so that the code won't be + incomplete at the next length (more bit patterns than symbols) */ + least = (left << 1) - syms; + if (least < 0) + least = 0; + + /* we can use at most this many bit patterns, lest there not be enough + available for the remaining symbols at the maximum length (if there were + no limit to the code length, this would become: most = left - 1) */ + most = (((code_t)left << (max - len)) - syms) / + (((code_t)1 << (max - len)) - 1); + + /* count all possible codes from this juncture and add them up */ + sum = 0; + for (use = least; use <= most; use++) { + got = count(syms - use, len + 1, (left - use) << 1); + sum += got; + if (got == -1 || sum < got) /* overflow */ + return -1; + } + + /* verify that all recursive calls are productive */ + assert(sum != 0); + + /* save the result and return it */ + num[index] = sum; + return sum; +} + +/* Return true if we've been here before, set to true if not. Set a bit in a + bit vector to indicate visiting this state. Each (syms,len,left) state + has a variable size bit vector indexed by (mem,rem). The bit vector is + lengthened if needed to allow setting the (mem,rem) bit. */ +local int beenhere(int syms, int len, int left, int mem, int rem) +{ + size_t index; /* index for this state's bit vector */ + size_t offset; /* offset in this state's bit vector */ + int bit; /* mask for this state's bit */ + size_t length; /* length of the bit vector in bytes */ + char *vector; /* new or enlarged bit vector */ + + /* point to vector for (syms,left,len), bit in vector for (mem,rem) */ + index = INDEX(syms, left, len); + mem -= 1 << root; + offset = (mem >> 3) + rem; + offset = ((offset * (offset + 1)) >> 1) + rem; + bit = 1 << (mem & 7); + + /* see if we've been here */ + length = done[index].len; + if (offset < length && (done[index].vec[offset] & bit) != 0) + return 1; /* done this! */ + + /* we haven't been here before -- set the bit to show we have now */ + + /* see if we need to lengthen the vector in order to set the bit */ + if (length <= offset) { + /* if we have one already, enlarge it, zero out the appended space */ + if (length) { + do { + length <<= 1; + } while (length <= offset); + vector = realloc(done[index].vec, length); + if (vector != NULL) + memset(vector + done[index].len, 0, length - done[index].len); + } + + /* otherwise we need to make a new vector and zero it out */ + else { + length = 1 << (len - root); + while (length <= offset) + length <<= 1; + vector = calloc(length, sizeof(char)); + } + + /* in either case, bail if we can't get the memory */ + if (vector == NULL) { + fputs("abort: unable to allocate enough memory\n", stderr); + cleanup(); + exit(1); + } + + /* install the new vector */ + done[index].len = length; + done[index].vec = vector; + } + + /* set the bit */ + done[index].vec[offset] |= bit; + return 0; +} + +/* Examine all possible codes from the given node (syms, len, left). Compute + the amount of memory required to build inflate's decoding tables, where the + number of code structures used so far is mem, and the number remaining in + the current sub-table is rem. Uses the globals max, code, root, large, and + done. */ +local void examine(int syms, int len, int left, int mem, int rem) +{ + int least; /* least number of syms to use at this juncture */ + int most; /* most number of syms to use at this juncture */ + int use; /* number of bit patterns to use in next call */ + + /* see if we have a complete code */ + if (syms == left) { + /* set the last code entry */ + code[len] = left; + + /* complete computation of memory used by this code */ + while (rem < left) { + left -= rem; + rem = 1 << (len - root); + mem += rem; + } + assert(rem == left); + + /* if this is a new maximum, show the entries used and the sub-code */ + if (mem > large) { + large = mem; + printf("max %d: ", mem); + for (use = root + 1; use <= max; use++) + if (code[use]) + printf("%d[%d] ", code[use], use); + putchar('\n'); + fflush(stdout); + } + + /* remove entries as we drop back down in the recursion */ + code[len] = 0; + return; + } + + /* prune the tree if we can */ + if (beenhere(syms, len, left, mem, rem)) + return; + + /* we need to use at least this many bit patterns so that the code won't be + incomplete at the next length (more bit patterns than symbols) */ + least = (left << 1) - syms; + if (least < 0) + least = 0; + + /* we can use at most this many bit patterns, lest there not be enough + available for the remaining symbols at the maximum length (if there were + no limit to the code length, this would become: most = left - 1) */ + most = (((code_t)left << (max - len)) - syms) / + (((code_t)1 << (max - len)) - 1); + + /* occupy least table spaces, creating new sub-tables as needed */ + use = least; + while (rem < use) { + use -= rem; + rem = 1 << (len - root); + mem += rem; + } + rem -= use; + + /* examine codes from here, updating table space as we go */ + for (use = least; use <= most; use++) { + code[len] = use; + examine(syms - use, len + 1, (left - use) << 1, + mem + (rem ? 1 << (len - root) : 0), rem << 1); + if (rem == 0) { + rem = 1 << (len - root); + mem += rem; + } + rem--; + } + + /* remove entries as we drop back down in the recursion */ + code[len] = 0; +} + +/* Look at all sub-codes starting with root + 1 bits. Look at only the valid + intermediate code states (syms, left, len). For each completed code, + calculate the amount of memory required by inflate to build the decoding + tables. Find the maximum amount of memory required and show the code that + requires that maximum. Uses the globals max, root, and num. */ +local void enough(int syms) +{ + int n; /* number of remaing symbols for this node */ + int left; /* number of unused bit patterns at this length */ + size_t index; /* index of this case in *num */ + + /* clear code */ + for (n = 0; n <= max; n++) + code[n] = 0; + + /* look at all (root + 1) bit and longer codes */ + large = 1 << root; /* base table */ + if (root < max) /* otherwise, there's only a base table */ + for (n = 3; n <= syms; n++) + for (left = 2; left < n; left += 2) + { + /* look at all reachable (root + 1) bit nodes, and the + resulting codes (complete at root + 2 or more) */ + index = INDEX(n, left, root + 1); + if (root + 1 < max && num[index]) /* reachable node */ + examine(n, root + 1, left, 1 << root, 0); + + /* also look at root bit codes with completions at root + 1 + bits (not saved in num, since complete), just in case */ + if (num[index - 1] && n <= left << 1) + examine((n - left) << 1, root + 1, (n - left) << 1, + 1 << root, 0); + } + + /* done */ + printf("done: maximum of %d table entries\n", large); +} + +/* + Examine and show the total number of possible Huffman codes for a given + maximum number of symbols, initial root table size, and maximum code length + in bits -- those are the command arguments in that order. The default + values are 286, 9, and 15 respectively, for the deflate literal/length code. + The possible codes are counted for each number of coded symbols from two to + the maximum. The counts for each of those and the total number of codes are + shown. The maximum number of inflate table entires is then calculated + across all possible codes. Each new maximum number of table entries and the + associated sub-code (starting at root + 1 == 10 bits) is shown. + + To count and examine Huffman codes that are not length-limited, provide a + maximum length equal to the number of symbols minus one. + + For the deflate literal/length code, use "enough". For the deflate distance + code, use "enough 30 6". + + This uses the %llu printf format to print big_t numbers, which assumes that + big_t is an unsigned long long. If the big_t type is changed (for example + to a multiple precision type), the method of printing will also need to be + updated. + */ +int main(int argc, char **argv) +{ + int syms; /* total number of symbols to code */ + int n; /* number of symbols to code for this run */ + big_t got; /* return value of count() */ + big_t sum; /* accumulated number of codes over n */ + + /* set up globals for cleanup() */ + code = NULL; + num = NULL; + done = NULL; + + /* get arguments -- default to the deflate literal/length code */ + syms = 286; + root = 9; + max = 15; + if (argc > 1) { + syms = atoi(argv[1]); + if (argc > 2) { + root = atoi(argv[2]); + if (argc > 3) + max = atoi(argv[3]); + } + } + if (argc > 4 || syms < 2 || root < 1 || max < 1) { + fputs("invalid arguments, need: [sym >= 2 [root >= 1 [max >= 1]]]\n", + stderr); + return 1; + } + + /* if not restricting the code length, the longest is syms - 1 */ + if (max > syms - 1) + max = syms - 1; + + /* determine the number of bits in a code_t */ + n = 0; + while (((code_t)1 << n) != 0) + n++; + + /* make sure that the calculation of most will not overflow */ + if (max > n || syms - 2 >= (((code_t)0 - 1) >> (max - 1))) { + fputs("abort: code length too long for internal types\n", stderr); + return 1; + } + + /* reject impossible code requests */ + if (syms - 1 > ((code_t)1 << max) - 1) { + fprintf(stderr, "%d symbols cannot be coded in %d bits\n", + syms, max); + return 1; + } + + /* allocate code vector */ + code = calloc(max + 1, sizeof(int)); + if (code == NULL) { + fputs("abort: unable to allocate enough memory\n", stderr); + return 1; + } + + /* determine size of saved results array, checking for overflows, + allocate and clear the array (set all to zero with calloc()) */ + if (syms == 2) /* iff max == 1 */ + num = NULL; /* won't be saving any results */ + else { + size = syms >> 1; + if (size > ((size_t)0 - 1) / (n = (syms - 1) >> 1) || + (size *= n, size > ((size_t)0 - 1) / (n = max - 1)) || + (size *= n, size > ((size_t)0 - 1) / sizeof(big_t)) || + (num = calloc(size, sizeof(big_t))) == NULL) { + fputs("abort: unable to allocate enough memory\n", stderr); + cleanup(); + return 1; + } + } + + /* count possible codes for all numbers of symbols, add up counts */ + sum = 0; + for (n = 2; n <= syms; n++) { + got = count(n, 1, 2); + sum += got; + if (got == -1 || sum < got) { /* overflow */ + fputs("abort: can't count that high!\n", stderr); + cleanup(); + return 1; + } + printf("%llu %d-codes\n", got, n); + } + printf("%llu total codes for 2 to %d symbols", sum, syms); + if (max < syms - 1) + printf(" (%d-bit length limit)\n", max); + else + puts(" (no length limit)"); + + /* allocate and clear done array for beenhere() */ + if (syms == 2) + done = NULL; + else if (size > ((size_t)0 - 1) / sizeof(struct tab) || + (done = calloc(size, sizeof(struct tab))) == NULL) { + fputs("abort: unable to allocate enough memory\n", stderr); + cleanup(); + return 1; + } + + /* find and show maximum inflate table usage */ + if (root > max) /* reduce root to max length */ + root = max; + if (syms < ((code_t)1 << (root + 1))) + enough(syms); + else + puts("cannot handle minimum code lengths > root"); + + /* done */ + cleanup(); + return 0; +} diff --git a/3party/zlib/examples/fitblk.c b/3party/zlib/examples/fitblk.c new file mode 100644 index 0000000000..c61de5c996 --- /dev/null +++ b/3party/zlib/examples/fitblk.c @@ -0,0 +1,233 @@ +/* fitblk.c: example of fitting compressed output to a specified size + Not copyrighted -- provided to the public domain + Version 1.1 25 November 2004 Mark Adler */ + +/* Version history: + 1.0 24 Nov 2004 First version + 1.1 25 Nov 2004 Change deflateInit2() to deflateInit() + Use fixed-size, stack-allocated raw buffers + Simplify code moving compression to subroutines + Use assert() for internal errors + Add detailed description of approach + */ + +/* Approach to just fitting a requested compressed size: + + fitblk performs three compression passes on a portion of the input + data in order to determine how much of that input will compress to + nearly the requested output block size. The first pass generates + enough deflate blocks to produce output to fill the requested + output size plus a specfied excess amount (see the EXCESS define + below). The last deflate block may go quite a bit past that, but + is discarded. The second pass decompresses and recompresses just + the compressed data that fit in the requested plus excess sized + buffer. The deflate process is terminated after that amount of + input, which is less than the amount consumed on the first pass. + The last deflate block of the result will be of a comparable size + to the final product, so that the header for that deflate block and + the compression ratio for that block will be about the same as in + the final product. The third compression pass decompresses the + result of the second step, but only the compressed data up to the + requested size minus an amount to allow the compressed stream to + complete (see the MARGIN define below). That will result in a + final compressed stream whose length is less than or equal to the + requested size. Assuming sufficient input and a requested size + greater than a few hundred bytes, the shortfall will typically be + less than ten bytes. + + If the input is short enough that the first compression completes + before filling the requested output size, then that compressed + stream is return with no recompression. + + EXCESS is chosen to be just greater than the shortfall seen in a + two pass approach similar to the above. That shortfall is due to + the last deflate block compressing more efficiently with a smaller + header on the second pass. EXCESS is set to be large enough so + that there is enough uncompressed data for the second pass to fill + out the requested size, and small enough so that the final deflate + block of the second pass will be close in size to the final deflate + block of the third and final pass. MARGIN is chosen to be just + large enough to assure that the final compression has enough room + to complete in all cases. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include "zlib.h" + +#define local static + +/* print nastygram and leave */ +local void quit(char *why) +{ + fprintf(stderr, "fitblk abort: %s\n", why); + exit(1); +} + +#define RAWLEN 4096 /* intermediate uncompressed buffer size */ + +/* compress from file to def until provided buffer is full or end of + input reached; return last deflate() return value, or Z_ERRNO if + there was read error on the file */ +local int partcompress(FILE *in, z_streamp def) +{ + int ret, flush; + unsigned char raw[RAWLEN]; + + flush = Z_NO_FLUSH; + do { + def->avail_in = fread(raw, 1, RAWLEN, in); + if (ferror(in)) + return Z_ERRNO; + def->next_in = raw; + if (feof(in)) + flush = Z_FINISH; + ret = deflate(def, flush); + assert(ret != Z_STREAM_ERROR); + } while (def->avail_out != 0 && flush == Z_NO_FLUSH); + return ret; +} + +/* recompress from inf's input to def's output; the input for inf and + the output for def are set in those structures before calling; + return last deflate() return value, or Z_MEM_ERROR if inflate() + was not able to allocate enough memory when it needed to */ +local int recompress(z_streamp inf, z_streamp def) +{ + int ret, flush; + unsigned char raw[RAWLEN]; + + flush = Z_NO_FLUSH; + do { + /* decompress */ + inf->avail_out = RAWLEN; + inf->next_out = raw; + ret = inflate(inf, Z_NO_FLUSH); + assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR && + ret != Z_NEED_DICT); + if (ret == Z_MEM_ERROR) + return ret; + + /* compress what was decompresed until done or no room */ + def->avail_in = RAWLEN - inf->avail_out; + def->next_in = raw; + if (inf->avail_out != 0) + flush = Z_FINISH; + ret = deflate(def, flush); + assert(ret != Z_STREAM_ERROR); + } while (ret != Z_STREAM_END && def->avail_out != 0); + return ret; +} + +#define EXCESS 256 /* empirically determined stream overage */ +#define MARGIN 8 /* amount to back off for completion */ + +/* compress from stdin to fixed-size block on stdout */ +int main(int argc, char **argv) +{ + int ret; /* return code */ + unsigned size; /* requested fixed output block size */ + unsigned have; /* bytes written by deflate() call */ + unsigned char *blk; /* intermediate and final stream */ + unsigned char *tmp; /* close to desired size stream */ + z_stream def, inf; /* zlib deflate and inflate states */ + + /* get requested output size */ + if (argc != 2) + quit("need one argument: size of output block"); + ret = strtol(argv[1], argv + 1, 10); + if (argv[1][0] != 0) + quit("argument must be a number"); + if (ret < 8) /* 8 is minimum zlib stream size */ + quit("need positive size of 8 or greater"); + size = (unsigned)ret; + + /* allocate memory for buffers and compression engine */ + blk = malloc(size + EXCESS); + def.zalloc = Z_NULL; + def.zfree = Z_NULL; + def.opaque = Z_NULL; + ret = deflateInit(&def, Z_DEFAULT_COMPRESSION); + if (ret != Z_OK || blk == NULL) + quit("out of memory"); + + /* compress from stdin until output full, or no more input */ + def.avail_out = size + EXCESS; + def.next_out = blk; + ret = partcompress(stdin, &def); + if (ret == Z_ERRNO) + quit("error reading input"); + + /* if it all fit, then size was undersubscribed -- done! */ + if (ret == Z_STREAM_END && def.avail_out >= EXCESS) { + /* write block to stdout */ + have = size + EXCESS - def.avail_out; + if (fwrite(blk, 1, have, stdout) != have || ferror(stdout)) + quit("error writing output"); + + /* clean up and print results to stderr */ + ret = deflateEnd(&def); + assert(ret != Z_STREAM_ERROR); + free(blk); + fprintf(stderr, + "%u bytes unused out of %u requested (all input)\n", + size - have, size); + return 0; + } + + /* it didn't all fit -- set up for recompression */ + inf.zalloc = Z_NULL; + inf.zfree = Z_NULL; + inf.opaque = Z_NULL; + inf.avail_in = 0; + inf.next_in = Z_NULL; + ret = inflateInit(&inf); + tmp = malloc(size + EXCESS); + if (ret != Z_OK || tmp == NULL) + quit("out of memory"); + ret = deflateReset(&def); + assert(ret != Z_STREAM_ERROR); + + /* do first recompression close to the right amount */ + inf.avail_in = size + EXCESS; + inf.next_in = blk; + def.avail_out = size + EXCESS; + def.next_out = tmp; + ret = recompress(&inf, &def); + if (ret == Z_MEM_ERROR) + quit("out of memory"); + + /* set up for next reocmpression */ + ret = inflateReset(&inf); + assert(ret != Z_STREAM_ERROR); + ret = deflateReset(&def); + assert(ret != Z_STREAM_ERROR); + + /* do second and final recompression (third compression) */ + inf.avail_in = size - MARGIN; /* assure stream will complete */ + inf.next_in = tmp; + def.avail_out = size; + def.next_out = blk; + ret = recompress(&inf, &def); + if (ret == Z_MEM_ERROR) + quit("out of memory"); + assert(ret == Z_STREAM_END); /* otherwise MARGIN too small */ + + /* done -- write block to stdout */ + have = size - def.avail_out; + if (fwrite(blk, 1, have, stdout) != have || ferror(stdout)) + quit("error writing output"); + + /* clean up and print results to stderr */ + free(tmp); + ret = inflateEnd(&inf); + assert(ret != Z_STREAM_ERROR); + ret = deflateEnd(&def); + assert(ret != Z_STREAM_ERROR); + free(blk); + fprintf(stderr, + "%u bytes unused out of %u requested (%lu input)\n", + size - have, size, def.total_in); + return 0; +} diff --git a/3party/zlib/examples/gun.c b/3party/zlib/examples/gun.c new file mode 100644 index 0000000000..72b0882ab8 --- /dev/null +++ b/3party/zlib/examples/gun.c @@ -0,0 +1,701 @@ +/* gun.c -- simple gunzip to give an example of the use of inflateBack() + * Copyright (C) 2003, 2005, 2008, 2010 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + Version 1.6 17 January 2010 Mark Adler */ + +/* Version history: + 1.0 16 Feb 2003 First version for testing of inflateBack() + 1.1 21 Feb 2005 Decompress concatenated gzip streams + Remove use of "this" variable (C++ keyword) + Fix return value for in() + Improve allocation failure checking + Add typecasting for void * structures + Add -h option for command version and usage + Add a bunch of comments + 1.2 20 Mar 2005 Add Unix compress (LZW) decompression + Copy file attributes from input file to output file + 1.3 12 Jun 2005 Add casts for error messages [Oberhumer] + 1.4 8 Dec 2006 LZW decompression speed improvements + 1.5 9 Feb 2008 Avoid warning in latest version of gcc + 1.6 17 Jan 2010 Avoid signed/unsigned comparison warnings + */ + +/* + gun [ -t ] [ name ... ] + + decompresses the data in the named gzip files. If no arguments are given, + gun will decompress from stdin to stdout. The names must end in .gz, -gz, + .z, -z, _z, or .Z. The uncompressed data will be written to a file name + with the suffix stripped. On success, the original file is deleted. On + failure, the output file is deleted. For most failures, the command will + continue to process the remaining names on the command line. A memory + allocation failure will abort the command. If -t is specified, then the + listed files or stdin will be tested as gzip files for integrity (without + checking for a proper suffix), no output will be written, and no files + will be deleted. + + Like gzip, gun allows concatenated gzip streams and will decompress them, + writing all of the uncompressed data to the output. Unlike gzip, gun allows + an empty file on input, and will produce no error writing an empty output + file. + + gun will also decompress files made by Unix compress, which uses LZW + compression. These files are automatically detected by virtue of their + magic header bytes. Since the end of Unix compress stream is marked by the + end-of-file, they cannot be concantenated. If a Unix compress stream is + encountered in an input file, it is the last stream in that file. + + Like gunzip and uncompress, the file attributes of the orignal compressed + file are maintained in the final uncompressed file, to the extent that the + user permissions allow it. + + On my Mac OS X PowerPC G4, gun is almost twice as fast as gunzip (version + 1.2.4) is on the same file, when gun is linked with zlib 1.2.2. Also the + LZW decompression provided by gun is about twice as fast as the standard + Unix uncompress command. + */ + +/* external functions and related types and constants */ +#include <stdio.h> /* fprintf() */ +#include <stdlib.h> /* malloc(), free() */ +#include <string.h> /* strerror(), strcmp(), strlen(), memcpy() */ +#include <errno.h> /* errno */ +#include <fcntl.h> /* open() */ +#include <unistd.h> /* read(), write(), close(), chown(), unlink() */ +#include <sys/types.h> +#include <sys/stat.h> /* stat(), chmod() */ +#include <utime.h> /* utime() */ +#include "zlib.h" /* inflateBackInit(), inflateBack(), */ + /* inflateBackEnd(), crc32() */ + +/* function declaration */ +#define local static + +/* buffer constants */ +#define SIZE 32768U /* input and output buffer sizes */ +#define PIECE 16384 /* limits i/o chunks for 16-bit int case */ + +/* structure for infback() to pass to input function in() -- it maintains the + input file and a buffer of size SIZE */ +struct ind { + int infile; + unsigned char *inbuf; +}; + +/* Load input buffer, assumed to be empty, and return bytes loaded and a + pointer to them. read() is called until the buffer is full, or until it + returns end-of-file or error. Return 0 on error. */ +local unsigned in(void *in_desc, unsigned char **buf) +{ + int ret; + unsigned len; + unsigned char *next; + struct ind *me = (struct ind *)in_desc; + + next = me->inbuf; + *buf = next; + len = 0; + do { + ret = PIECE; + if ((unsigned)ret > SIZE - len) + ret = (int)(SIZE - len); + ret = (int)read(me->infile, next, ret); + if (ret == -1) { + len = 0; + break; + } + next += ret; + len += ret; + } while (ret != 0 && len < SIZE); + return len; +} + +/* structure for infback() to pass to output function out() -- it maintains the + output file, a running CRC-32 check on the output and the total number of + bytes output, both for checking against the gzip trailer. (The length in + the gzip trailer is stored modulo 2^32, so it's ok if a long is 32 bits and + the output is greater than 4 GB.) */ +struct outd { + int outfile; + int check; /* true if checking crc and total */ + unsigned long crc; + unsigned long total; +}; + +/* Write output buffer and update the CRC-32 and total bytes written. write() + is called until all of the output is written or an error is encountered. + On success out() returns 0. For a write failure, out() returns 1. If the + output file descriptor is -1, then nothing is written. + */ +local int out(void *out_desc, unsigned char *buf, unsigned len) +{ + int ret; + struct outd *me = (struct outd *)out_desc; + + if (me->check) { + me->crc = crc32(me->crc, buf, len); + me->total += len; + } + if (me->outfile != -1) + do { + ret = PIECE; + if ((unsigned)ret > len) + ret = (int)len; + ret = (int)write(me->outfile, buf, ret); + if (ret == -1) + return 1; + buf += ret; + len -= ret; + } while (len != 0); + return 0; +} + +/* next input byte macro for use inside lunpipe() and gunpipe() */ +#define NEXT() (have ? 0 : (have = in(indp, &next)), \ + last = have ? (have--, (int)(*next++)) : -1) + +/* memory for gunpipe() and lunpipe() -- + the first 256 entries of prefix[] and suffix[] are never used, could + have offset the index, but it's faster to waste the memory */ +unsigned char inbuf[SIZE]; /* input buffer */ +unsigned char outbuf[SIZE]; /* output buffer */ +unsigned short prefix[65536]; /* index to LZW prefix string */ +unsigned char suffix[65536]; /* one-character LZW suffix */ +unsigned char match[65280 + 2]; /* buffer for reversed match or gzip + 32K sliding window */ + +/* throw out what's left in the current bits byte buffer (this is a vestigial + aspect of the compressed data format derived from an implementation that + made use of a special VAX machine instruction!) */ +#define FLUSHCODE() \ + do { \ + left = 0; \ + rem = 0; \ + if (chunk > have) { \ + chunk -= have; \ + have = 0; \ + if (NEXT() == -1) \ + break; \ + chunk--; \ + if (chunk > have) { \ + chunk = have = 0; \ + break; \ + } \ + } \ + have -= chunk; \ + next += chunk; \ + chunk = 0; \ + } while (0) + +/* Decompress a compress (LZW) file from indp to outfile. The compress magic + header (two bytes) has already been read and verified. There are have bytes + of buffered input at next. strm is used for passing error information back + to gunpipe(). + + lunpipe() will return Z_OK on success, Z_BUF_ERROR for an unexpected end of + file, read error, or write error (a write error indicated by strm->next_in + not equal to Z_NULL), or Z_DATA_ERROR for invalid input. + */ +local int lunpipe(unsigned have, unsigned char *next, struct ind *indp, + int outfile, z_stream *strm) +{ + int last; /* last byte read by NEXT(), or -1 if EOF */ + unsigned chunk; /* bytes left in current chunk */ + int left; /* bits left in rem */ + unsigned rem; /* unused bits from input */ + int bits; /* current bits per code */ + unsigned code; /* code, table traversal index */ + unsigned mask; /* mask for current bits codes */ + int max; /* maximum bits per code for this stream */ + unsigned flags; /* compress flags, then block compress flag */ + unsigned end; /* last valid entry in prefix/suffix tables */ + unsigned temp; /* current code */ + unsigned prev; /* previous code */ + unsigned final; /* last character written for previous code */ + unsigned stack; /* next position for reversed string */ + unsigned outcnt; /* bytes in output buffer */ + struct outd outd; /* output structure */ + unsigned char *p; + + /* set up output */ + outd.outfile = outfile; + outd.check = 0; + + /* process remainder of compress header -- a flags byte */ + flags = NEXT(); + if (last == -1) + return Z_BUF_ERROR; + if (flags & 0x60) { + strm->msg = (char *)"unknown lzw flags set"; + return Z_DATA_ERROR; + } + max = flags & 0x1f; + if (max < 9 || max > 16) { + strm->msg = (char *)"lzw bits out of range"; + return Z_DATA_ERROR; + } + if (max == 9) /* 9 doesn't really mean 9 */ + max = 10; + flags &= 0x80; /* true if block compress */ + + /* clear table */ + bits = 9; + mask = 0x1ff; + end = flags ? 256 : 255; + + /* set up: get first 9-bit code, which is the first decompressed byte, but + don't create a table entry until the next code */ + if (NEXT() == -1) /* no compressed data is ok */ + return Z_OK; + final = prev = (unsigned)last; /* low 8 bits of code */ + if (NEXT() == -1) /* missing a bit */ + return Z_BUF_ERROR; + if (last & 1) { /* code must be < 256 */ + strm->msg = (char *)"invalid lzw code"; + return Z_DATA_ERROR; + } + rem = (unsigned)last >> 1; /* remaining 7 bits */ + left = 7; + chunk = bits - 2; /* 7 bytes left in this chunk */ + outbuf[0] = (unsigned char)final; /* write first decompressed byte */ + outcnt = 1; + + /* decode codes */ + stack = 0; + for (;;) { + /* if the table will be full after this, increment the code size */ + if (end >= mask && bits < max) { + FLUSHCODE(); + bits++; + mask <<= 1; + mask++; + } + + /* get a code of length bits */ + if (chunk == 0) /* decrement chunk modulo bits */ + chunk = bits; + code = rem; /* low bits of code */ + if (NEXT() == -1) { /* EOF is end of compressed data */ + /* write remaining buffered output */ + if (outcnt && out(&outd, outbuf, outcnt)) { + strm->next_in = outbuf; /* signal write error */ + return Z_BUF_ERROR; + } + return Z_OK; + } + code += (unsigned)last << left; /* middle (or high) bits of code */ + left += 8; + chunk--; + if (bits > left) { /* need more bits */ + if (NEXT() == -1) /* can't end in middle of code */ + return Z_BUF_ERROR; + code += (unsigned)last << left; /* high bits of code */ + left += 8; + chunk--; + } + code &= mask; /* mask to current code length */ + left -= bits; /* number of unused bits */ + rem = (unsigned)last >> (8 - left); /* unused bits from last byte */ + + /* process clear code (256) */ + if (code == 256 && flags) { + FLUSHCODE(); + bits = 9; /* initialize bits and mask */ + mask = 0x1ff; + end = 255; /* empty table */ + continue; /* get next code */ + } + + /* special code to reuse last match */ + temp = code; /* save the current code */ + if (code > end) { + /* Be picky on the allowed code here, and make sure that the code + we drop through (prev) will be a valid index so that random + input does not cause an exception. The code != end + 1 check is + empirically derived, and not checked in the original uncompress + code. If this ever causes a problem, that check could be safely + removed. Leaving this check in greatly improves gun's ability + to detect random or corrupted input after a compress header. + In any case, the prev > end check must be retained. */ + if (code != end + 1 || prev > end) { + strm->msg = (char *)"invalid lzw code"; + return Z_DATA_ERROR; + } + match[stack++] = (unsigned char)final; + code = prev; + } + + /* walk through linked list to generate output in reverse order */ + p = match + stack; + while (code >= 256) { + *p++ = suffix[code]; + code = prefix[code]; + } + stack = p - match; + match[stack++] = (unsigned char)code; + final = code; + + /* link new table entry */ + if (end < mask) { + end++; + prefix[end] = (unsigned short)prev; + suffix[end] = (unsigned char)final; + } + + /* set previous code for next iteration */ + prev = temp; + + /* write output in forward order */ + while (stack > SIZE - outcnt) { + while (outcnt < SIZE) + outbuf[outcnt++] = match[--stack]; + if (out(&outd, outbuf, outcnt)) { + strm->next_in = outbuf; /* signal write error */ + return Z_BUF_ERROR; + } + outcnt = 0; + } + p = match + stack; + do { + outbuf[outcnt++] = *--p; + } while (p > match); + stack = 0; + + /* loop for next code with final and prev as the last match, rem and + left provide the first 0..7 bits of the next code, end is the last + valid table entry */ + } +} + +/* Decompress a gzip file from infile to outfile. strm is assumed to have been + successfully initialized with inflateBackInit(). The input file may consist + of a series of gzip streams, in which case all of them will be decompressed + to the output file. If outfile is -1, then the gzip stream(s) integrity is + checked and nothing is written. + + The return value is a zlib error code: Z_MEM_ERROR if out of memory, + Z_DATA_ERROR if the header or the compressed data is invalid, or if the + trailer CRC-32 check or length doesn't match, Z_BUF_ERROR if the input ends + prematurely or a write error occurs, or Z_ERRNO if junk (not a another gzip + stream) follows a valid gzip stream. + */ +local int gunpipe(z_stream *strm, int infile, int outfile) +{ + int ret, first, last; + unsigned have, flags, len; + unsigned char *next = NULL; + struct ind ind, *indp; + struct outd outd; + + /* setup input buffer */ + ind.infile = infile; + ind.inbuf = inbuf; + indp = &ind; + + /* decompress concatenated gzip streams */ + have = 0; /* no input data read in yet */ + first = 1; /* looking for first gzip header */ + strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */ + for (;;) { + /* look for the two magic header bytes for a gzip stream */ + if (NEXT() == -1) { + ret = Z_OK; + break; /* empty gzip stream is ok */ + } + if (last != 31 || (NEXT() != 139 && last != 157)) { + strm->msg = (char *)"incorrect header check"; + ret = first ? Z_DATA_ERROR : Z_ERRNO; + break; /* not a gzip or compress header */ + } + first = 0; /* next non-header is junk */ + + /* process a compress (LZW) file -- can't be concatenated after this */ + if (last == 157) { + ret = lunpipe(have, next, indp, outfile, strm); + break; + } + + /* process remainder of gzip header */ + ret = Z_BUF_ERROR; + if (NEXT() != 8) { /* only deflate method allowed */ + if (last == -1) break; + strm->msg = (char *)"unknown compression method"; + ret = Z_DATA_ERROR; + break; + } + flags = NEXT(); /* header flags */ + NEXT(); /* discard mod time, xflgs, os */ + NEXT(); + NEXT(); + NEXT(); + NEXT(); + NEXT(); + if (last == -1) break; + if (flags & 0xe0) { + strm->msg = (char *)"unknown header flags set"; + ret = Z_DATA_ERROR; + break; + } + if (flags & 4) { /* extra field */ + len = NEXT(); + len += (unsigned)(NEXT()) << 8; + if (last == -1) break; + while (len > have) { + len -= have; + have = 0; + if (NEXT() == -1) break; + len--; + } + if (last == -1) break; + have -= len; + next += len; + } + if (flags & 8) /* file name */ + while (NEXT() != 0 && last != -1) + ; + if (flags & 16) /* comment */ + while (NEXT() != 0 && last != -1) + ; + if (flags & 2) { /* header crc */ + NEXT(); + NEXT(); + } + if (last == -1) break; + + /* set up output */ + outd.outfile = outfile; + outd.check = 1; + outd.crc = crc32(0L, Z_NULL, 0); + outd.total = 0; + + /* decompress data to output */ + strm->next_in = next; + strm->avail_in = have; + ret = inflateBack(strm, in, indp, out, &outd); + if (ret != Z_STREAM_END) break; + next = strm->next_in; + have = strm->avail_in; + strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */ + + /* check trailer */ + ret = Z_BUF_ERROR; + if (NEXT() != (int)(outd.crc & 0xff) || + NEXT() != (int)((outd.crc >> 8) & 0xff) || + NEXT() != (int)((outd.crc >> 16) & 0xff) || + NEXT() != (int)((outd.crc >> 24) & 0xff)) { + /* crc error */ + if (last != -1) { + strm->msg = (char *)"incorrect data check"; + ret = Z_DATA_ERROR; + } + break; + } + if (NEXT() != (int)(outd.total & 0xff) || + NEXT() != (int)((outd.total >> 8) & 0xff) || + NEXT() != (int)((outd.total >> 16) & 0xff) || + NEXT() != (int)((outd.total >> 24) & 0xff)) { + /* length error */ + if (last != -1) { + strm->msg = (char *)"incorrect length check"; + ret = Z_DATA_ERROR; + } + break; + } + + /* go back and look for another gzip stream */ + } + + /* clean up and return */ + return ret; +} + +/* Copy file attributes, from -> to, as best we can. This is best effort, so + no errors are reported. The mode bits, including suid, sgid, and the sticky + bit are copied (if allowed), the owner's user id and group id are copied + (again if allowed), and the access and modify times are copied. */ +local void copymeta(char *from, char *to) +{ + struct stat was; + struct utimbuf when; + + /* get all of from's Unix meta data, return if not a regular file */ + if (stat(from, &was) != 0 || (was.st_mode & S_IFMT) != S_IFREG) + return; + + /* set to's mode bits, ignore errors */ + (void)chmod(to, was.st_mode & 07777); + + /* copy owner's user and group, ignore errors */ + (void)chown(to, was.st_uid, was.st_gid); + + /* copy access and modify times, ignore errors */ + when.actime = was.st_atime; + when.modtime = was.st_mtime; + (void)utime(to, &when); +} + +/* Decompress the file inname to the file outnname, of if test is true, just + decompress without writing and check the gzip trailer for integrity. If + inname is NULL or an empty string, read from stdin. If outname is NULL or + an empty string, write to stdout. strm is a pre-initialized inflateBack + structure. When appropriate, copy the file attributes from inname to + outname. + + gunzip() returns 1 if there is an out-of-memory error or an unexpected + return code from gunpipe(). Otherwise it returns 0. + */ +local int gunzip(z_stream *strm, char *inname, char *outname, int test) +{ + int ret; + int infile, outfile; + + /* open files */ + if (inname == NULL || *inname == 0) { + inname = "-"; + infile = 0; /* stdin */ + } + else { + infile = open(inname, O_RDONLY, 0); + if (infile == -1) { + fprintf(stderr, "gun cannot open %s\n", inname); + return 0; + } + } + if (test) + outfile = -1; + else if (outname == NULL || *outname == 0) { + outname = "-"; + outfile = 1; /* stdout */ + } + else { + outfile = open(outname, O_CREAT | O_TRUNC | O_WRONLY, 0666); + if (outfile == -1) { + close(infile); + fprintf(stderr, "gun cannot create %s\n", outname); + return 0; + } + } + errno = 0; + + /* decompress */ + ret = gunpipe(strm, infile, outfile); + if (outfile > 2) close(outfile); + if (infile > 2) close(infile); + + /* interpret result */ + switch (ret) { + case Z_OK: + case Z_ERRNO: + if (infile > 2 && outfile > 2) { + copymeta(inname, outname); /* copy attributes */ + unlink(inname); + } + if (ret == Z_ERRNO) + fprintf(stderr, "gun warning: trailing garbage ignored in %s\n", + inname); + break; + case Z_DATA_ERROR: + if (outfile > 2) unlink(outname); + fprintf(stderr, "gun data error on %s: %s\n", inname, strm->msg); + break; + case Z_MEM_ERROR: + if (outfile > 2) unlink(outname); + fprintf(stderr, "gun out of memory error--aborting\n"); + return 1; + case Z_BUF_ERROR: + if (outfile > 2) unlink(outname); + if (strm->next_in != Z_NULL) { + fprintf(stderr, "gun write error on %s: %s\n", + outname, strerror(errno)); + } + else if (errno) { + fprintf(stderr, "gun read error on %s: %s\n", + inname, strerror(errno)); + } + else { + fprintf(stderr, "gun unexpected end of file on %s\n", + inname); + } + break; + default: + if (outfile > 2) unlink(outname); + fprintf(stderr, "gun internal error--aborting\n"); + return 1; + } + return 0; +} + +/* Process the gun command line arguments. See the command syntax near the + beginning of this source file. */ +int main(int argc, char **argv) +{ + int ret, len, test; + char *outname; + unsigned char *window; + z_stream strm; + + /* initialize inflateBack state for repeated use */ + window = match; /* reuse LZW match buffer */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + ret = inflateBackInit(&strm, 15, window); + if (ret != Z_OK) { + fprintf(stderr, "gun out of memory error--aborting\n"); + return 1; + } + + /* decompress each file to the same name with the suffix removed */ + argc--; + argv++; + test = 0; + if (argc && strcmp(*argv, "-h") == 0) { + fprintf(stderr, "gun 1.6 (17 Jan 2010)\n"); + fprintf(stderr, "Copyright (C) 2003-2010 Mark Adler\n"); + fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n"); + return 0; + } + if (argc && strcmp(*argv, "-t") == 0) { + test = 1; + argc--; + argv++; + } + if (argc) + do { + if (test) + outname = NULL; + else { + len = (int)strlen(*argv); + if (strcmp(*argv + len - 3, ".gz") == 0 || + strcmp(*argv + len - 3, "-gz") == 0) + len -= 3; + else if (strcmp(*argv + len - 2, ".z") == 0 || + strcmp(*argv + len - 2, "-z") == 0 || + strcmp(*argv + len - 2, "_z") == 0 || + strcmp(*argv + len - 2, ".Z") == 0) + len -= 2; + else { + fprintf(stderr, "gun error: no gz type on %s--skipping\n", + *argv); + continue; + } + outname = malloc(len + 1); + if (outname == NULL) { + fprintf(stderr, "gun out of memory error--aborting\n"); + ret = 1; + break; + } + memcpy(outname, *argv, len); + outname[len] = 0; + } + ret = gunzip(&strm, *argv, outname, test); + if (outname != NULL) free(outname); + if (ret) break; + } while (argv++, --argc); + else + ret = gunzip(&strm, NULL, NULL, test); + + /* clean up */ + inflateBackEnd(&strm); + return ret; +} diff --git a/3party/zlib/examples/gzappend.c b/3party/zlib/examples/gzappend.c new file mode 100644 index 0000000000..e9e878e116 --- /dev/null +++ b/3party/zlib/examples/gzappend.c @@ -0,0 +1,500 @@ +/* gzappend -- command to append to a gzip file + + Copyright (C) 2003 Mark Adler, all rights reserved + version 1.1, 4 Nov 2003 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + +/* + * Change history: + * + * 1.0 19 Oct 2003 - First version + * 1.1 4 Nov 2003 - Expand and clarify some comments and notes + * - Add version and copyright to help + * - Send help to stdout instead of stderr + * - Add some preemptive typecasts + * - Add L to constants in lseek() calls + * - Remove some debugging information in error messages + * - Use new data_type definition for zlib 1.2.1 + * - Simplfy and unify file operations + * - Finish off gzip file in gztack() + * - Use deflatePrime() instead of adding empty blocks + * - Keep gzip file clean on appended file read errors + * - Use in-place rotate instead of auxiliary buffer + * (Why you ask? Because it was fun to write!) + */ + +/* + gzappend takes a gzip file and appends to it, compressing files from the + command line or data from stdin. The gzip file is written to directly, to + avoid copying that file, in case it's large. Note that this results in the + unfriendly behavior that if gzappend fails, the gzip file is corrupted. + + This program was written to illustrate the use of the new Z_BLOCK option of + zlib 1.2.x's inflate() function. This option returns from inflate() at each + block boundary to facilitate locating and modifying the last block bit at + the start of the final deflate block. Also whether using Z_BLOCK or not, + another required feature of zlib 1.2.x is that inflate() now provides the + number of unusued bits in the last input byte used. gzappend will not work + with versions of zlib earlier than 1.2.1. + + gzappend first decompresses the gzip file internally, discarding all but + the last 32K of uncompressed data, and noting the location of the last block + bit and the number of unused bits in the last byte of the compressed data. + The gzip trailer containing the CRC-32 and length of the uncompressed data + is verified. This trailer will be later overwritten. + + Then the last block bit is cleared by seeking back in the file and rewriting + the byte that contains it. Seeking forward, the last byte of the compressed + data is saved along with the number of unused bits to initialize deflate. + + A deflate process is initialized, using the last 32K of the uncompressed + data from the gzip file to initialize the dictionary. If the total + uncompressed data was less than 32K, then all of it is used to initialize + the dictionary. The deflate output bit buffer is also initialized with the + last bits from the original deflate stream. From here on, the data to + append is simply compressed using deflate, and written to the gzip file. + When that is complete, the new CRC-32 and uncompressed length are written + as the trailer of the gzip file. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include "zlib.h" + +#define local static +#define LGCHUNK 14 +#define CHUNK (1U << LGCHUNK) +#define DSIZE 32768U + +/* print an error message and terminate with extreme prejudice */ +local void bye(char *msg1, char *msg2) +{ + fprintf(stderr, "gzappend error: %s%s\n", msg1, msg2); + exit(1); +} + +/* return the greatest common divisor of a and b using Euclid's algorithm, + modified to be fast when one argument much greater than the other, and + coded to avoid unnecessary swapping */ +local unsigned gcd(unsigned a, unsigned b) +{ + unsigned c; + + while (a && b) + if (a > b) { + c = b; + while (a - c >= c) + c <<= 1; + a -= c; + } + else { + c = a; + while (b - c >= c) + c <<= 1; + b -= c; + } + return a + b; +} + +/* rotate list[0..len-1] left by rot positions, in place */ +local void rotate(unsigned char *list, unsigned len, unsigned rot) +{ + unsigned char tmp; + unsigned cycles; + unsigned char *start, *last, *to, *from; + + /* normalize rot and handle degenerate cases */ + if (len < 2) return; + if (rot >= len) rot %= len; + if (rot == 0) return; + + /* pointer to last entry in list */ + last = list + (len - 1); + + /* do simple left shift by one */ + if (rot == 1) { + tmp = *list; + memcpy(list, list + 1, len - 1); + *last = tmp; + return; + } + + /* do simple right shift by one */ + if (rot == len - 1) { + tmp = *last; + memmove(list + 1, list, len - 1); + *list = tmp; + return; + } + + /* otherwise do rotate as a set of cycles in place */ + cycles = gcd(len, rot); /* number of cycles */ + do { + start = from = list + cycles; /* start index is arbitrary */ + tmp = *from; /* save entry to be overwritten */ + for (;;) { + to = from; /* next step in cycle */ + from += rot; /* go right rot positions */ + if (from > last) from -= len; /* (pointer better not wrap) */ + if (from == start) break; /* all but one shifted */ + *to = *from; /* shift left */ + } + *to = tmp; /* complete the circle */ + } while (--cycles); +} + +/* structure for gzip file read operations */ +typedef struct { + int fd; /* file descriptor */ + int size; /* 1 << size is bytes in buf */ + unsigned left; /* bytes available at next */ + unsigned char *buf; /* buffer */ + unsigned char *next; /* next byte in buffer */ + char *name; /* file name for error messages */ +} file; + +/* reload buffer */ +local int readin(file *in) +{ + int len; + + len = read(in->fd, in->buf, 1 << in->size); + if (len == -1) bye("error reading ", in->name); + in->left = (unsigned)len; + in->next = in->buf; + return len; +} + +/* read from file in, exit if end-of-file */ +local int readmore(file *in) +{ + if (readin(in) == 0) bye("unexpected end of ", in->name); + return 0; +} + +#define read1(in) (in->left == 0 ? readmore(in) : 0, \ + in->left--, *(in->next)++) + +/* skip over n bytes of in */ +local void skip(file *in, unsigned n) +{ + unsigned bypass; + + if (n > in->left) { + n -= in->left; + bypass = n & ~((1U << in->size) - 1); + if (bypass) { + if (lseek(in->fd, (off_t)bypass, SEEK_CUR) == -1) + bye("seeking ", in->name); + n -= bypass; + } + readmore(in); + if (n > in->left) + bye("unexpected end of ", in->name); + } + in->left -= n; + in->next += n; +} + +/* read a four-byte unsigned integer, little-endian, from in */ +unsigned long read4(file *in) +{ + unsigned long val; + + val = read1(in); + val += (unsigned)read1(in) << 8; + val += (unsigned long)read1(in) << 16; + val += (unsigned long)read1(in) << 24; + return val; +} + +/* skip over gzip header */ +local void gzheader(file *in) +{ + int flags; + unsigned n; + + if (read1(in) != 31 || read1(in) != 139) bye(in->name, " not a gzip file"); + if (read1(in) != 8) bye("unknown compression method in", in->name); + flags = read1(in); + if (flags & 0xe0) bye("unknown header flags set in", in->name); + skip(in, 6); + if (flags & 4) { + n = read1(in); + n += (unsigned)(read1(in)) << 8; + skip(in, n); + } + if (flags & 8) while (read1(in) != 0) ; + if (flags & 16) while (read1(in) != 0) ; + if (flags & 2) skip(in, 2); +} + +/* decompress gzip file "name", return strm with a deflate stream ready to + continue compression of the data in the gzip file, and return a file + descriptor pointing to where to write the compressed data -- the deflate + stream is initialized to compress using level "level" */ +local int gzscan(char *name, z_stream *strm, int level) +{ + int ret, lastbit, left, full; + unsigned have; + unsigned long crc, tot; + unsigned char *window; + off_t lastoff, end; + file gz; + + /* open gzip file */ + gz.name = name; + gz.fd = open(name, O_RDWR, 0); + if (gz.fd == -1) bye("cannot open ", name); + gz.buf = malloc(CHUNK); + if (gz.buf == NULL) bye("out of memory", ""); + gz.size = LGCHUNK; + gz.left = 0; + + /* skip gzip header */ + gzheader(&gz); + + /* prepare to decompress */ + window = malloc(DSIZE); + if (window == NULL) bye("out of memory", ""); + strm->zalloc = Z_NULL; + strm->zfree = Z_NULL; + strm->opaque = Z_NULL; + ret = inflateInit2(strm, -15); + if (ret != Z_OK) bye("out of memory", " or library mismatch"); + + /* decompress the deflate stream, saving append information */ + lastbit = 0; + lastoff = lseek(gz.fd, 0L, SEEK_CUR) - gz.left; + left = 0; + strm->avail_in = gz.left; + strm->next_in = gz.next; + crc = crc32(0L, Z_NULL, 0); + have = full = 0; + do { + /* if needed, get more input */ + if (strm->avail_in == 0) { + readmore(&gz); + strm->avail_in = gz.left; + strm->next_in = gz.next; + } + + /* set up output to next available section of sliding window */ + strm->avail_out = DSIZE - have; + strm->next_out = window + have; + + /* inflate and check for errors */ + ret = inflate(strm, Z_BLOCK); + if (ret == Z_STREAM_ERROR) bye("internal stream error!", ""); + if (ret == Z_MEM_ERROR) bye("out of memory", ""); + if (ret == Z_DATA_ERROR) + bye("invalid compressed data--format violated in", name); + + /* update crc and sliding window pointer */ + crc = crc32(crc, window + have, DSIZE - have - strm->avail_out); + if (strm->avail_out) + have = DSIZE - strm->avail_out; + else { + have = 0; + full = 1; + } + + /* process end of block */ + if (strm->data_type & 128) { + if (strm->data_type & 64) + left = strm->data_type & 0x1f; + else { + lastbit = strm->data_type & 0x1f; + lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in; + } + } + } while (ret != Z_STREAM_END); + inflateEnd(strm); + gz.left = strm->avail_in; + gz.next = strm->next_in; + + /* save the location of the end of the compressed data */ + end = lseek(gz.fd, 0L, SEEK_CUR) - gz.left; + + /* check gzip trailer and save total for deflate */ + if (crc != read4(&gz)) + bye("invalid compressed data--crc mismatch in ", name); + tot = strm->total_out; + if ((tot & 0xffffffffUL) != read4(&gz)) + bye("invalid compressed data--length mismatch in", name); + + /* if not at end of file, warn */ + if (gz.left || readin(&gz)) + fprintf(stderr, + "gzappend warning: junk at end of gzip file overwritten\n"); + + /* clear last block bit */ + lseek(gz.fd, lastoff - (lastbit != 0), SEEK_SET); + if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name); + *gz.buf = (unsigned char)(*gz.buf ^ (1 << ((8 - lastbit) & 7))); + lseek(gz.fd, -1L, SEEK_CUR); + if (write(gz.fd, gz.buf, 1) != 1) bye("writing after seek to ", name); + + /* if window wrapped, build dictionary from window by rotating */ + if (full) { + rotate(window, DSIZE, have); + have = DSIZE; + } + + /* set up deflate stream with window, crc, total_in, and leftover bits */ + ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY); + if (ret != Z_OK) bye("out of memory", ""); + deflateSetDictionary(strm, window, have); + strm->adler = crc; + strm->total_in = tot; + if (left) { + lseek(gz.fd, --end, SEEK_SET); + if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name); + deflatePrime(strm, 8 - left, *gz.buf); + } + lseek(gz.fd, end, SEEK_SET); + + /* clean up and return */ + free(window); + free(gz.buf); + return gz.fd; +} + +/* append file "name" to gzip file gd using deflate stream strm -- if last + is true, then finish off the deflate stream at the end */ +local void gztack(char *name, int gd, z_stream *strm, int last) +{ + int fd, len, ret; + unsigned left; + unsigned char *in, *out; + + /* open file to compress and append */ + fd = 0; + if (name != NULL) { + fd = open(name, O_RDONLY, 0); + if (fd == -1) + fprintf(stderr, "gzappend warning: %s not found, skipping ...\n", + name); + } + + /* allocate buffers */ + in = fd == -1 ? NULL : malloc(CHUNK); + out = malloc(CHUNK); + if (out == NULL) bye("out of memory", ""); + + /* compress input file and append to gzip file */ + do { + /* get more input */ + len = fd == -1 ? 0 : read(fd, in, CHUNK); + if (len == -1) { + fprintf(stderr, + "gzappend warning: error reading %s, skipping rest ...\n", + name); + len = 0; + } + strm->avail_in = (unsigned)len; + strm->next_in = in; + if (len) strm->adler = crc32(strm->adler, in, (unsigned)len); + + /* compress and write all available output */ + do { + strm->avail_out = CHUNK; + strm->next_out = out; + ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH); + left = CHUNK - strm->avail_out; + while (left) { + len = write(gd, out + CHUNK - strm->avail_out - left, left); + if (len == -1) bye("writing gzip file", ""); + left -= (unsigned)len; + } + } while (strm->avail_out == 0 && ret != Z_STREAM_END); + } while (len != 0); + + /* write trailer after last entry */ + if (last) { + deflateEnd(strm); + out[0] = (unsigned char)(strm->adler); + out[1] = (unsigned char)(strm->adler >> 8); + out[2] = (unsigned char)(strm->adler >> 16); + out[3] = (unsigned char)(strm->adler >> 24); + out[4] = (unsigned char)(strm->total_in); + out[5] = (unsigned char)(strm->total_in >> 8); + out[6] = (unsigned char)(strm->total_in >> 16); + out[7] = (unsigned char)(strm->total_in >> 24); + len = 8; + do { + ret = write(gd, out + 8 - len, len); + if (ret == -1) bye("writing gzip file", ""); + len -= ret; + } while (len); + close(gd); + } + + /* clean up and return */ + free(out); + if (in != NULL) free(in); + if (fd > 0) close(fd); +} + +/* process the compression level option if present, scan the gzip file, and + append the specified files, or append the data from stdin if no other file + names are provided on the command line -- the gzip file must be writable + and seekable */ +int main(int argc, char **argv) +{ + int gd, level; + z_stream strm; + + /* ignore command name */ + argv++; + + /* provide usage if no arguments */ + if (*argv == NULL) { + printf("gzappend 1.1 (4 Nov 2003) Copyright (C) 2003 Mark Adler\n"); + printf( + "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n"); + return 0; + } + + /* set compression level */ + level = Z_DEFAULT_COMPRESSION; + if (argv[0][0] == '-') { + if (argv[0][1] < '0' || argv[0][1] > '9' || argv[0][2] != 0) + bye("invalid compression level", ""); + level = argv[0][1] - '0'; + if (*++argv == NULL) bye("no gzip file name after options", ""); + } + + /* prepare to append to gzip file */ + gd = gzscan(*argv++, &strm, level); + + /* append files on command line, or from stdin if none */ + if (*argv == NULL) + gztack(NULL, gd, &strm, 1); + else + do { + gztack(*argv, gd, &strm, argv[1] == NULL); + } while (*++argv != NULL); + return 0; +} diff --git a/3party/zlib/examples/gzjoin.c b/3party/zlib/examples/gzjoin.c new file mode 100644 index 0000000000..129347ce3c --- /dev/null +++ b/3party/zlib/examples/gzjoin.c @@ -0,0 +1,448 @@ +/* gzjoin -- command to join gzip files into one gzip file + + Copyright (C) 2004 Mark Adler, all rights reserved + version 1.0, 11 Dec 2004 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + +/* + * Change history: + * + * 1.0 11 Dec 2004 - First version + * 1.1 12 Jun 2005 - Changed ssize_t to long for portability + */ + +/* + gzjoin takes one or more gzip files on the command line and writes out a + single gzip file that will uncompress to the concatenation of the + uncompressed data from the individual gzip files. gzjoin does this without + having to recompress any of the data and without having to calculate a new + crc32 for the concatenated uncompressed data. gzjoin does however have to + decompress all of the input data in order to find the bits in the compressed + data that need to be modified to concatenate the streams. + + gzjoin does not do an integrity check on the input gzip files other than + checking the gzip header and decompressing the compressed data. They are + otherwise assumed to be complete and correct. + + Each joint between gzip files removes at least 18 bytes of previous trailer + and subsequent header, and inserts an average of about three bytes to the + compressed data in order to connect the streams. The output gzip file + has a minimal ten-byte gzip header with no file name or modification time. + + This program was written to illustrate the use of the Z_BLOCK option of + inflate() and the crc32_combine() function. gzjoin will not compile with + versions of zlib earlier than 1.2.3. + */ + +#include <stdio.h> /* fputs(), fprintf(), fwrite(), putc() */ +#include <stdlib.h> /* exit(), malloc(), free() */ +#include <fcntl.h> /* open() */ +#include <unistd.h> /* close(), read(), lseek() */ +#include "zlib.h" + /* crc32(), crc32_combine(), inflateInit2(), inflate(), inflateEnd() */ + +#define local static + +/* exit with an error (return a value to allow use in an expression) */ +local int bail(char *why1, char *why2) +{ + fprintf(stderr, "gzjoin error: %s%s, output incomplete\n", why1, why2); + exit(1); + return 0; +} + +/* -- simple buffered file input with access to the buffer -- */ + +#define CHUNK 32768 /* must be a power of two and fit in unsigned */ + +/* bin buffered input file type */ +typedef struct { + char *name; /* name of file for error messages */ + int fd; /* file descriptor */ + unsigned left; /* bytes remaining at next */ + unsigned char *next; /* next byte to read */ + unsigned char *buf; /* allocated buffer of length CHUNK */ +} bin; + +/* close a buffered file and free allocated memory */ +local void bclose(bin *in) +{ + if (in != NULL) { + if (in->fd != -1) + close(in->fd); + if (in->buf != NULL) + free(in->buf); + free(in); + } +} + +/* open a buffered file for input, return a pointer to type bin, or NULL on + failure */ +local bin *bopen(char *name) +{ + bin *in; + + in = malloc(sizeof(bin)); + if (in == NULL) + return NULL; + in->buf = malloc(CHUNK); + in->fd = open(name, O_RDONLY, 0); + if (in->buf == NULL || in->fd == -1) { + bclose(in); + return NULL; + } + in->left = 0; + in->next = in->buf; + in->name = name; + return in; +} + +/* load buffer from file, return -1 on read error, 0 or 1 on success, with + 1 indicating that end-of-file was reached */ +local int bload(bin *in) +{ + long len; + + if (in == NULL) + return -1; + if (in->left != 0) + return 0; + in->next = in->buf; + do { + len = (long)read(in->fd, in->buf + in->left, CHUNK - in->left); + if (len < 0) + return -1; + in->left += (unsigned)len; + } while (len != 0 && in->left < CHUNK); + return len == 0 ? 1 : 0; +} + +/* get a byte from the file, bail if end of file */ +#define bget(in) (in->left ? 0 : bload(in), \ + in->left ? (in->left--, *(in->next)++) : \ + bail("unexpected end of file on ", in->name)) + +/* get a four-byte little-endian unsigned integer from file */ +local unsigned long bget4(bin *in) +{ + unsigned long val; + + val = bget(in); + val += (unsigned long)(bget(in)) << 8; + val += (unsigned long)(bget(in)) << 16; + val += (unsigned long)(bget(in)) << 24; + return val; +} + +/* skip bytes in file */ +local void bskip(bin *in, unsigned skip) +{ + /* check pointer */ + if (in == NULL) + return; + + /* easy case -- skip bytes in buffer */ + if (skip <= in->left) { + in->left -= skip; + in->next += skip; + return; + } + + /* skip what's in buffer, discard buffer contents */ + skip -= in->left; + in->left = 0; + + /* seek past multiples of CHUNK bytes */ + if (skip > CHUNK) { + unsigned left; + + left = skip & (CHUNK - 1); + if (left == 0) { + /* exact number of chunks: seek all the way minus one byte to check + for end-of-file with a read */ + lseek(in->fd, skip - 1, SEEK_CUR); + if (read(in->fd, in->buf, 1) != 1) + bail("unexpected end of file on ", in->name); + return; + } + + /* skip the integral chunks, update skip with remainder */ + lseek(in->fd, skip - left, SEEK_CUR); + skip = left; + } + + /* read more input and skip remainder */ + bload(in); + if (skip > in->left) + bail("unexpected end of file on ", in->name); + in->left -= skip; + in->next += skip; +} + +/* -- end of buffered input functions -- */ + +/* skip the gzip header from file in */ +local void gzhead(bin *in) +{ + int flags; + + /* verify gzip magic header and compression method */ + if (bget(in) != 0x1f || bget(in) != 0x8b || bget(in) != 8) + bail(in->name, " is not a valid gzip file"); + + /* get and verify flags */ + flags = bget(in); + if ((flags & 0xe0) != 0) + bail("unknown reserved bits set in ", in->name); + + /* skip modification time, extra flags, and os */ + bskip(in, 6); + + /* skip extra field if present */ + if (flags & 4) { + unsigned len; + + len = bget(in); + len += (unsigned)(bget(in)) << 8; + bskip(in, len); + } + + /* skip file name if present */ + if (flags & 8) + while (bget(in) != 0) + ; + + /* skip comment if present */ + if (flags & 16) + while (bget(in) != 0) + ; + + /* skip header crc if present */ + if (flags & 2) + bskip(in, 2); +} + +/* write a four-byte little-endian unsigned integer to out */ +local void put4(unsigned long val, FILE *out) +{ + putc(val & 0xff, out); + putc((val >> 8) & 0xff, out); + putc((val >> 16) & 0xff, out); + putc((val >> 24) & 0xff, out); +} + +/* Load up zlib stream from buffered input, bail if end of file */ +local void zpull(z_streamp strm, bin *in) +{ + if (in->left == 0) + bload(in); + if (in->left == 0) + bail("unexpected end of file on ", in->name); + strm->avail_in = in->left; + strm->next_in = in->next; +} + +/* Write header for gzip file to out and initialize trailer. */ +local void gzinit(unsigned long *crc, unsigned long *tot, FILE *out) +{ + fwrite("\x1f\x8b\x08\0\0\0\0\0\0\xff", 1, 10, out); + *crc = crc32(0L, Z_NULL, 0); + *tot = 0; +} + +/* Copy the compressed data from name, zeroing the last block bit of the last + block if clr is true, and adding empty blocks as needed to get to a byte + boundary. If clr is false, then the last block becomes the last block of + the output, and the gzip trailer is written. crc and tot maintains the + crc and length (modulo 2^32) of the output for the trailer. The resulting + gzip file is written to out. gzinit() must be called before the first call + of gzcopy() to write the gzip header and to initialize crc and tot. */ +local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot, + FILE *out) +{ + int ret; /* return value from zlib functions */ + int pos; /* where the "last block" bit is in byte */ + int last; /* true if processing the last block */ + bin *in; /* buffered input file */ + unsigned char *start; /* start of compressed data in buffer */ + unsigned char *junk; /* buffer for uncompressed data -- discarded */ + z_off_t len; /* length of uncompressed data (support > 4 GB) */ + z_stream strm; /* zlib inflate stream */ + + /* open gzip file and skip header */ + in = bopen(name); + if (in == NULL) + bail("could not open ", name); + gzhead(in); + + /* allocate buffer for uncompressed data and initialize raw inflate + stream */ + junk = malloc(CHUNK); + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, -15); + if (junk == NULL || ret != Z_OK) + bail("out of memory", ""); + + /* inflate and copy compressed data, clear last-block bit if requested */ + len = 0; + zpull(&strm, in); + start = strm.next_in; + last = start[0] & 1; + if (last && clr) + start[0] &= ~1; + strm.avail_out = 0; + for (;;) { + /* if input used and output done, write used input and get more */ + if (strm.avail_in == 0 && strm.avail_out != 0) { + fwrite(start, 1, strm.next_in - start, out); + start = in->buf; + in->left = 0; + zpull(&strm, in); + } + + /* decompress -- return early when end-of-block reached */ + strm.avail_out = CHUNK; + strm.next_out = junk; + ret = inflate(&strm, Z_BLOCK); + switch (ret) { + case Z_MEM_ERROR: + bail("out of memory", ""); + case Z_DATA_ERROR: + bail("invalid compressed data in ", in->name); + } + + /* update length of uncompressed data */ + len += CHUNK - strm.avail_out; + + /* check for block boundary (only get this when block copied out) */ + if (strm.data_type & 128) { + /* if that was the last block, then done */ + if (last) + break; + + /* number of unused bits in last byte */ + pos = strm.data_type & 7; + + /* find the next last-block bit */ + if (pos != 0) { + /* next last-block bit is in last used byte */ + pos = 0x100 >> pos; + last = strm.next_in[-1] & pos; + if (last && clr) + strm.next_in[-1] &= ~pos; + } + else { + /* next last-block bit is in next unused byte */ + if (strm.avail_in == 0) { + /* don't have that byte yet -- get it */ + fwrite(start, 1, strm.next_in - start, out); + start = in->buf; + in->left = 0; + zpull(&strm, in); + } + last = strm.next_in[0] & 1; + if (last && clr) + strm.next_in[0] &= ~1; + } + } + } + + /* update buffer with unused input */ + in->left = strm.avail_in; + in->next = strm.next_in; + + /* copy used input, write empty blocks to get to byte boundary */ + pos = strm.data_type & 7; + fwrite(start, 1, in->next - start - 1, out); + last = in->next[-1]; + if (pos == 0 || !clr) + /* already at byte boundary, or last file: write last byte */ + putc(last, out); + else { + /* append empty blocks to last byte */ + last &= ((0x100 >> pos) - 1); /* assure unused bits are zero */ + if (pos & 1) { + /* odd -- append an empty stored block */ + putc(last, out); + if (pos == 1) + putc(0, out); /* two more bits in block header */ + fwrite("\0\0\xff\xff", 1, 4, out); + } + else { + /* even -- append 1, 2, or 3 empty fixed blocks */ + switch (pos) { + case 6: + putc(last | 8, out); + last = 0; + case 4: + putc(last | 0x20, out); + last = 0; + case 2: + putc(last | 0x80, out); + putc(0, out); + } + } + } + + /* update crc and tot */ + *crc = crc32_combine(*crc, bget4(in), len); + *tot += (unsigned long)len; + + /* clean up */ + inflateEnd(&strm); + free(junk); + bclose(in); + + /* write trailer if this is the last gzip file */ + if (!clr) { + put4(*crc, out); + put4(*tot, out); + } +} + +/* join the gzip files on the command line, write result to stdout */ +int main(int argc, char **argv) +{ + unsigned long crc, tot; /* running crc and total uncompressed length */ + + /* skip command name */ + argc--; + argv++; + + /* show usage if no arguments */ + if (argc == 0) { + fputs("gzjoin usage: gzjoin f1.gz [f2.gz [f3.gz ...]] > fjoin.gz\n", + stderr); + return 0; + } + + /* join gzip files on command line and write to stdout */ + gzinit(&crc, &tot, stdout); + while (argc--) + gzcopy(*argv++, argc, &crc, &tot, stdout); + + /* done */ + return 0; +} diff --git a/3party/zlib/examples/gzlog.c b/3party/zlib/examples/gzlog.c new file mode 100644 index 0000000000..d70aacabae --- /dev/null +++ b/3party/zlib/examples/gzlog.c @@ -0,0 +1,1058 @@ +/* + * gzlog.c + * Copyright (C) 2004, 2008 Mark Adler, all rights reserved + * For conditions of distribution and use, see copyright notice in gzlog.h + * version 2.0, 25 Apr 2008 + */ + +/* + gzlog provides a mechanism for frequently appending short strings to a gzip + file that is efficient both in execution time and compression ratio. The + strategy is to write the short strings in an uncompressed form to the end of + the gzip file, only compressing when the amount of uncompressed data has + reached a given threshold. + + gzlog also provides protection against interruptions in the process due to + system crashes. The status of the operation is recorded in an extra field + in the gzip file, and is only updated once the gzip file is brought to a + valid state. The last data to be appended or compressed is saved in an + auxiliary file, so that if the operation is interrupted, it can be completed + the next time an append operation is attempted. + + gzlog maintains another auxiliary file with the last 32K of data from the + compressed portion, which is preloaded for the compression of the subsequent + data. This minimizes the impact to the compression ratio of appending. + */ + +/* + Operations Concept: + + Files (log name "foo"): + foo.gz -- gzip file with the complete log + foo.add -- last message to append or last data to compress + foo.dict -- dictionary of the last 32K of data for next compression + foo.temp -- temporary dictionary file for compression after this one + foo.lock -- lock file for reading and writing the other files + foo.repairs -- log file for log file recovery operations (not compressed) + + gzip file structure: + - fixed-length (no file name) header with extra field (see below) + - compressed data ending initially with empty stored block + - uncompressed data filling out originally empty stored block and + subsequent stored blocks as needed (16K max each) + - gzip trailer + - no junk at end (no other gzip streams) + + When appending data, the information in the first three items above plus the + foo.add file are sufficient to recover an interrupted append operation. The + extra field has the necessary information to restore the start of the last + stored block and determine where to append the data in the foo.add file, as + well as the crc and length of the gzip data before the append operation. + + The foo.add file is created before the gzip file is marked for append, and + deleted after the gzip file is marked as complete. So if the append + operation is interrupted, the data to add will still be there. If due to + some external force, the foo.add file gets deleted between when the append + operation was interrupted and when recovery is attempted, the gzip file will + still be restored, but without the appended data. + + When compressing data, the information in the first two items above plus the + foo.add file are sufficient to recover an interrupted compress operation. + The extra field has the necessary information to find the end of the + compressed data, and contains both the crc and length of just the compressed + data and of the complete set of data including the contents of the foo.add + file. + + Again, the foo.add file is maintained during the compress operation in case + of an interruption. If in the unlikely event the foo.add file with the data + to be compressed is missing due to some external force, a gzip file with + just the previous compressed data will be reconstructed. In this case, all + of the data that was to be compressed is lost (approximately one megabyte). + This will not occur if all that happened was an interruption of the compress + operation. + + The third state that is marked is the replacement of the old dictionary with + the new dictionary after a compress operation. Once compression is + complete, the gzip file is marked as being in the replace state. This + completes the gzip file, so an interrupt after being so marked does not + result in recompression. Then the dictionary file is replaced, and the gzip + file is marked as completed. This state prevents the possibility of + restarting compression with the wrong dictionary file. + + All three operations are wrapped by a lock/unlock procedure. In order to + gain exclusive access to the log files, first a foo.lock file must be + exclusively created. When all operations are complete, the lock is + released by deleting the foo.lock file. If when attempting to create the + lock file, it already exists and the modify time of the lock file is more + than five minutes old (set by the PATIENCE define below), then the old + lock file is considered stale and deleted, and the exclusive creation of + the lock file is retried. To assure that there are no false assessments + of the staleness of the lock file, the operations periodically touch the + lock file to update the modified date. + + Following is the definition of the extra field with all of the information + required to enable the above append and compress operations and their + recovery if interrupted. Multi-byte values are stored little endian + (consistent with the gzip format). File pointers are eight bytes long. + The crc's and lengths for the gzip trailer are four bytes long. (Note that + the length at the end of a gzip file is used for error checking only, and + for large files is actually the length modulo 2^32.) The stored block + length is two bytes long. The gzip extra field two-byte identification is + "ap" for append. It is assumed that writing the extra field to the file is + an "atomic" operation. That is, either all of the extra field is written + to the file, or none of it is, if the operation is interrupted right at the + point of updating the extra field. This is a reasonable assumption, since + the extra field is within the first 52 bytes of the file, which is smaller + than any expected block size for a mass storage device (usually 512 bytes or + larger). + + Extra field (35 bytes): + - Pointer to first stored block length -- this points to the two-byte length + of the first stored block, which is followed by the two-byte, one's + complement of that length. The stored block length is preceded by the + three-bit header of the stored block, which is the actual start of the + stored block in the deflate format. See the bit offset field below. + - Pointer to the last stored block length. This is the same as above, but + for the last stored block of the uncompressed data in the gzip file. + Initially this is the same as the first stored block length pointer. + When the stored block gets to 16K (see the MAX_STORE define), then a new + stored block as added, at which point the last stored block length pointer + is different from the first stored block length pointer. When they are + different, the first bit of the last stored block header is eight bits, or + one byte back from the block length. + - Compressed data crc and length. This is the crc and length of the data + that is in the compressed portion of the deflate stream. These are used + only in the event that the foo.add file containing the data to compress is + lost after a compress operation is interrupted. + - Total data crc and length. This is the crc and length of all of the data + stored in the gzip file, compressed and uncompressed. It is used to + reconstruct the gzip trailer when compressing, as well as when recovering + interrupted operations. + - Final stored block length. This is used to quickly find where to append, + and allows the restoration of the original final stored block state when + an append operation is interrupted. + - First stored block start as the number of bits back from the final stored + block first length byte. This value is in the range of 3..10, and is + stored as the low three bits of the final byte of the extra field after + subtracting three (0..7). This allows the last-block bit of the stored + block header to be updated when a new stored block is added, for the case + when the first stored block and the last stored block are the same. (When + they are different, the numbers of bits back is known to be eight.) This + also allows for new compressed data to be appended to the old compressed + data in the compress operation, overwriting the previous first stored + block, or for the compressed data to be terminated and a valid gzip file + reconstructed on the off chance that a compression operation was + interrupted and the data to compress in the foo.add file was deleted. + - The operation in process. This is the next two bits in the last byte (the + bits under the mask 0x18). The are interpreted as 0: nothing in process, + 1: append in process, 2: compress in process, 3: replace in process. + - The top three bits of the last byte in the extra field are reserved and + are currently set to zero. + + Main procedure: + - Exclusively create the foo.lock file using the O_CREAT and O_EXCL modes of + the system open() call. If the modify time of an existing lock file is + more than PATIENCE seconds old, then the lock file is deleted and the + exclusive create is retried. + - Load the extra field from the foo.gz file, and see if an operation was in + progress but not completed. If so, apply the recovery procedure below. + - Perform the append procedure with the provided data. + - If the uncompressed data in the foo.gz file is 1MB or more, apply the + compress procedure. + - Delete the foo.lock file. + + Append procedure: + - Put what to append in the foo.add file so that the operation can be + restarted if this procedure is interrupted. + - Mark the foo.gz extra field with the append operation in progress. + + Restore the original last-block bit and stored block length of the last + stored block from the information in the extra field, in case a previous + append operation was interrupted. + - Append the provided data to the last stored block, creating new stored + blocks as needed and updating the stored blocks last-block bits and + lengths. + - Update the crc and length with the new data, and write the gzip trailer. + - Write over the extra field (with a single write operation) with the new + pointers, lengths, and crc's, and mark the gzip file as not in process. + Though there is still a foo.add file, it will be ignored since nothing + is in process. If a foo.add file is leftover from a previously + completed operation, it is truncated when writing new data to it. + - Delete the foo.add file. + + Compress and replace procedures: + - Read all of the uncompressed data in the stored blocks in foo.gz and write + it to foo.add. Also write foo.temp with the last 32K of that data to + provide a dictionary for the next invocation of this procedure. + - Rewrite the extra field marking foo.gz with a compression in process. + * If there is no data provided to compress (due to a missing foo.add file + when recovering), reconstruct and truncate the foo.gz file to contain + only the previous compressed data and proceed to the step after the next + one. Otherwise ... + - Compress the data with the dictionary in foo.dict, and write to the + foo.gz file starting at the bit immediately following the last previously + compressed block. If there is no foo.dict, proceed anyway with the + compression at slightly reduced efficiency. (For the foo.dict file to be + missing requires some external failure beyond simply the interruption of + a compress operation.) During this process, the foo.lock file is + periodically touched to assure that that file is not considered stale by + another process before we're done. The deflation is terminated with a + non-last empty static block (10 bits long), that is then located and + written over by a last-bit-set empty stored block. + - Append the crc and length of the data in the gzip file (previously + calculated during the append operations). + - Write over the extra field with the updated stored block offsets, bits + back, crc's, and lengths, and mark foo.gz as in process for a replacement + of the dictionary. + @ Delete the foo.add file. + - Replace foo.dict with foo.temp. + - Write over the extra field, marking foo.gz as complete. + + Recovery procedure: + - If not a replace recovery, read in the foo.add file, and provide that data + to the appropriate recovery below. If there is no foo.add file, provide + a zero data length to the recovery. In that case, the append recovery + restores the foo.gz to the previous compressed + uncompressed data state. + For the the compress recovery, a missing foo.add file results in foo.gz + being restored to the previous compressed-only data state. + - Append recovery: + - Pick up append at + step above + - Compress recovery: + - Pick up compress at * step above + - Replace recovery: + - Pick up compress at @ step above + - Log the repair with a date stamp in foo.repairs + */ + +#include <sys/types.h> +#include <stdio.h> /* rename, fopen, fprintf, fclose */ +#include <stdlib.h> /* malloc, free */ +#include <string.h> /* strlen, strrchr, strcpy, strncpy, strcmp */ +#include <fcntl.h> /* open */ +#include <unistd.h> /* lseek, read, write, close, unlink, sleep, */ + /* ftruncate, fsync */ +#include <errno.h> /* errno */ +#include <time.h> /* time, ctime */ +#include <sys/stat.h> /* stat */ +#include <sys/time.h> /* utimes */ +#include "zlib.h" /* crc32 */ + +#include "gzlog.h" /* header for external access */ + +#define local static +typedef unsigned int uint; +typedef unsigned long ulong; + +/* Macro for debugging to deterministically force recovery operations */ +#ifdef DEBUG + #include <setjmp.h> /* longjmp */ + jmp_buf gzlog_jump; /* where to go back to */ + int gzlog_bail = 0; /* which point to bail at (1..8) */ + int gzlog_count = -1; /* number of times through to wait */ +# define BAIL(n) do { if (n == gzlog_bail && gzlog_count-- == 0) \ + longjmp(gzlog_jump, gzlog_bail); } while (0) +#else +# define BAIL(n) +#endif + +/* how old the lock file can be in seconds before considering it stale */ +#define PATIENCE 300 + +/* maximum stored block size in Kbytes -- must be in 1..63 */ +#define MAX_STORE 16 + +/* number of stored Kbytes to trigger compression (must be >= 32 to allow + dictionary construction, and <= 204 * MAX_STORE, in order for >> 10 to + discard the stored block headers contribution of five bytes each) */ +#define TRIGGER 1024 + +/* size of a deflate dictionary (this cannot be changed) */ +#define DICT 32768U + +/* values for the operation (2 bits) */ +#define NO_OP 0 +#define APPEND_OP 1 +#define COMPRESS_OP 2 +#define REPLACE_OP 3 + +/* macros to extract little-endian integers from an unsigned byte buffer */ +#define PULL2(p) ((p)[0]+((uint)((p)[1])<<8)) +#define PULL4(p) (PULL2(p)+((ulong)PULL2(p+2)<<16)) +#define PULL8(p) (PULL4(p)+((off_t)PULL4(p+4)<<32)) + +/* macros to store integers into a byte buffer in little-endian order */ +#define PUT2(p,a) do {(p)[0]=a;(p)[1]=(a)>>8;} while(0) +#define PUT4(p,a) do {PUT2(p,a);PUT2(p+2,a>>16);} while(0) +#define PUT8(p,a) do {PUT4(p,a);PUT4(p+4,a>>32);} while(0) + +/* internal structure for log information */ +#define LOGID "\106\035\172" /* should be three non-zero characters */ +struct log { + char id[4]; /* contains LOGID to detect inadvertent overwrites */ + int fd; /* file descriptor for .gz file, opened read/write */ + char *path; /* allocated path, e.g. "/var/log/foo" or "foo" */ + char *end; /* end of path, for appending suffices such as ".gz" */ + off_t first; /* offset of first stored block first length byte */ + int back; /* location of first block id in bits back from first */ + uint stored; /* bytes currently in last stored block */ + off_t last; /* offset of last stored block first length byte */ + ulong ccrc; /* crc of compressed data */ + ulong clen; /* length (modulo 2^32) of compressed data */ + ulong tcrc; /* crc of total data */ + ulong tlen; /* length (modulo 2^32) of total data */ + time_t lock; /* last modify time of our lock file */ +}; + +/* gzip header for gzlog */ +local unsigned char log_gzhead[] = { + 0x1f, 0x8b, /* magic gzip id */ + 8, /* compression method is deflate */ + 4, /* there is an extra field (no file name) */ + 0, 0, 0, 0, /* no modification time provided */ + 0, 0xff, /* no extra flags, no OS specified */ + 39, 0, 'a', 'p', 35, 0 /* extra field with "ap" subfield */ + /* 35 is EXTRA, 39 is EXTRA + 4 */ +}; + +#define HEAD sizeof(log_gzhead) /* should be 16 */ + +/* initial gzip extra field content (52 == HEAD + EXTRA + 1) */ +local unsigned char log_gzext[] = { + 52, 0, 0, 0, 0, 0, 0, 0, /* offset of first stored block length */ + 52, 0, 0, 0, 0, 0, 0, 0, /* offset of last stored block length */ + 0, 0, 0, 0, 0, 0, 0, 0, /* compressed data crc and length */ + 0, 0, 0, 0, 0, 0, 0, 0, /* total data crc and length */ + 0, 0, /* final stored block data length */ + 5 /* op is NO_OP, last bit 8 bits back */ +}; + +#define EXTRA sizeof(log_gzext) /* should be 35 */ + +/* initial gzip data and trailer */ +local unsigned char log_gzbody[] = { + 1, 0, 0, 0xff, 0xff, /* empty stored block (last) */ + 0, 0, 0, 0, /* crc */ + 0, 0, 0, 0 /* uncompressed length */ +}; + +#define BODY sizeof(log_gzbody) + +/* Exclusively create foo.lock in order to negotiate exclusive access to the + foo.* files. If the modify time of an existing lock file is greater than + PATIENCE seconds in the past, then consider the lock file to have been + abandoned, delete it, and try the exclusive create again. Save the lock + file modify time for verification of ownership. Return 0 on success, or -1 + on failure, usually due to an access restriction or invalid path. Note that + if stat() or unlink() fails, it may be due to another process noticing the + abandoned lock file a smidge sooner and deleting it, so those are not + flagged as an error. */ +local int log_lock(struct log *log) +{ + int fd; + struct stat st; + + strcpy(log->end, ".lock"); + while ((fd = open(log->path, O_CREAT | O_EXCL, 0644)) < 0) { + if (errno != EEXIST) + return -1; + if (stat(log->path, &st) == 0 && time(NULL) - st.st_mtime > PATIENCE) { + unlink(log->path); + continue; + } + sleep(2); /* relinquish the CPU for two seconds while waiting */ + } + close(fd); + if (stat(log->path, &st) == 0) + log->lock = st.st_mtime; + return 0; +} + +/* Update the modify time of the lock file to now, in order to prevent another + task from thinking that the lock is stale. Save the lock file modify time + for verification of ownership. */ +local void log_touch(struct log *log) +{ + struct stat st; + + strcpy(log->end, ".lock"); + utimes(log->path, NULL); + if (stat(log->path, &st) == 0) + log->lock = st.st_mtime; +} + +/* Check the log file modify time against what is expected. Return true if + this is not our lock. If it is our lock, touch it to keep it. */ +local int log_check(struct log *log) +{ + struct stat st; + + strcpy(log->end, ".lock"); + if (stat(log->path, &st) || st.st_mtime != log->lock) + return 1; + log_touch(log); + return 0; +} + +/* Unlock a previously acquired lock, but only if it's ours. */ +local void log_unlock(struct log *log) +{ + if (log_check(log)) + return; + strcpy(log->end, ".lock"); + unlink(log->path); + log->lock = 0; +} + +/* Check the gzip header and read in the extra field, filling in the values in + the log structure. Return op on success or -1 if the gzip header was not as + expected. op is the current operation in progress last written to the extra + field. This assumes that the gzip file has already been opened, with the + file descriptor log->fd. */ +local int log_head(struct log *log) +{ + int op; + unsigned char buf[HEAD + EXTRA]; + + if (lseek(log->fd, 0, SEEK_SET) < 0 || + read(log->fd, buf, HEAD + EXTRA) != HEAD + EXTRA || + memcmp(buf, log_gzhead, HEAD)) { + return -1; + } + log->first = PULL8(buf + HEAD); + log->last = PULL8(buf + HEAD + 8); + log->ccrc = PULL4(buf + HEAD + 16); + log->clen = PULL4(buf + HEAD + 20); + log->tcrc = PULL4(buf + HEAD + 24); + log->tlen = PULL4(buf + HEAD + 28); + log->stored = PULL2(buf + HEAD + 32); + log->back = 3 + (buf[HEAD + 34] & 7); + op = (buf[HEAD + 34] >> 3) & 3; + return op; +} + +/* Write over the extra field contents, marking the operation as op. Use fsync + to assure that the device is written to, and in the requested order. This + operation, and only this operation, is assumed to be atomic in order to + assure that the log is recoverable in the event of an interruption at any + point in the process. Return -1 if the write to foo.gz failed. */ +local int log_mark(struct log *log, int op) +{ + int ret; + unsigned char ext[EXTRA]; + + PUT8(ext, log->first); + PUT8(ext + 8, log->last); + PUT4(ext + 16, log->ccrc); + PUT4(ext + 20, log->clen); + PUT4(ext + 24, log->tcrc); + PUT4(ext + 28, log->tlen); + PUT2(ext + 32, log->stored); + ext[34] = log->back - 3 + (op << 3); + fsync(log->fd); + ret = lseek(log->fd, HEAD, SEEK_SET) < 0 || + write(log->fd, ext, EXTRA) != EXTRA ? -1 : 0; + fsync(log->fd); + return ret; +} + +/* Rewrite the last block header bits and subsequent zero bits to get to a byte + boundary, setting the last block bit if last is true, and then write the + remainder of the stored block header (length and one's complement). Leave + the file pointer after the end of the last stored block data. Return -1 if + there is a read or write failure on the foo.gz file */ +local int log_last(struct log *log, int last) +{ + int back, len, mask; + unsigned char buf[6]; + + /* determine the locations of the bytes and bits to modify */ + back = log->last == log->first ? log->back : 8; + len = back > 8 ? 2 : 1; /* bytes back from log->last */ + mask = 0x80 >> ((back - 1) & 7); /* mask for block last-bit */ + + /* get the byte to modify (one or two back) into buf[0] -- don't need to + read the byte if the last-bit is eight bits back, since in that case + the entire byte will be modified */ + buf[0] = 0; + if (back != 8 && (lseek(log->fd, log->last - len, SEEK_SET) < 0 || + read(log->fd, buf, 1) != 1)) + return -1; + + /* change the last-bit of the last stored block as requested -- note + that all bits above the last-bit are set to zero, per the type bits + of a stored block being 00 and per the convention that the bits to + bring the stream to a byte boundary are also zeros */ + buf[1] = 0; + buf[2 - len] = (*buf & (mask - 1)) + (last ? mask : 0); + + /* write the modified stored block header and lengths, move the file + pointer to after the last stored block data */ + PUT2(buf + 2, log->stored); + PUT2(buf + 4, log->stored ^ 0xffff); + return lseek(log->fd, log->last - len, SEEK_SET) < 0 || + write(log->fd, buf + 2 - len, len + 4) != len + 4 || + lseek(log->fd, log->stored, SEEK_CUR) < 0 ? -1 : 0; +} + +/* Append len bytes from data to the locked and open log file. len may be zero + if recovering and no .add file was found. In that case, the previous state + of the foo.gz file is restored. The data is appended uncompressed in + deflate stored blocks. Return -1 if there was an error reading or writing + the foo.gz file. */ +local int log_append(struct log *log, unsigned char *data, size_t len) +{ + uint put; + off_t end; + unsigned char buf[8]; + + /* set the last block last-bit and length, in case recovering an + interrupted append, then position the file pointer to append to the + block */ + if (log_last(log, 1)) + return -1; + + /* append, adding stored blocks and updating the offset of the last stored + block as needed, and update the total crc and length */ + while (len) { + /* append as much as we can to the last block */ + put = (MAX_STORE << 10) - log->stored; + if (put > len) + put = (uint)len; + if (put) { + if (write(log->fd, data, put) != put) + return -1; + BAIL(1); + log->tcrc = crc32(log->tcrc, data, put); + log->tlen += put; + log->stored += put; + data += put; + len -= put; + } + + /* if we need to, add a new empty stored block */ + if (len) { + /* mark current block as not last */ + if (log_last(log, 0)) + return -1; + + /* point to new, empty stored block */ + log->last += 4 + log->stored + 1; + log->stored = 0; + } + + /* mark last block as last, update its length */ + if (log_last(log, 1)) + return -1; + BAIL(2); + } + + /* write the new crc and length trailer, and truncate just in case (could + be recovering from partial append with a missing foo.add file) */ + PUT4(buf, log->tcrc); + PUT4(buf + 4, log->tlen); + if (write(log->fd, buf, 8) != 8 || + (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end)) + return -1; + + /* write the extra field, marking the log file as done, delete .add file */ + if (log_mark(log, NO_OP)) + return -1; + strcpy(log->end, ".add"); + unlink(log->path); /* ignore error, since may not exist */ + return 0; +} + +/* Replace the foo.dict file with the foo.temp file. Also delete the foo.add + file, since the compress operation may have been interrupted before that was + done. Returns 1 if memory could not be allocated, or -1 if reading or + writing foo.gz fails, or if the rename fails for some reason other than + foo.temp not existing. foo.temp not existing is a permitted error, since + the replace operation may have been interrupted after the rename is done, + but before foo.gz is marked as complete. */ +local int log_replace(struct log *log) +{ + int ret; + char *dest; + + /* delete foo.add file */ + strcpy(log->end, ".add"); + unlink(log->path); /* ignore error, since may not exist */ + BAIL(3); + + /* rename foo.name to foo.dict, replacing foo.dict if it exists */ + strcpy(log->end, ".dict"); + dest = malloc(strlen(log->path) + 1); + if (dest == NULL) + return -2; + strcpy(dest, log->path); + strcpy(log->end, ".temp"); + ret = rename(log->path, dest); + free(dest); + if (ret && errno != ENOENT) + return -1; + BAIL(4); + + /* mark the foo.gz file as done */ + return log_mark(log, NO_OP); +} + +/* Compress the len bytes at data and append the compressed data to the + foo.gz deflate data immediately after the previous compressed data. This + overwrites the previous uncompressed data, which was stored in foo.add + and is the data provided in data[0..len-1]. If this operation is + interrupted, it picks up at the start of this routine, with the foo.add + file read in again. If there is no data to compress (len == 0), then we + simply terminate the foo.gz file after the previously compressed data, + appending a final empty stored block and the gzip trailer. Return -1 if + reading or writing the log.gz file failed, or -2 if there was a memory + allocation failure. */ +local int log_compress(struct log *log, unsigned char *data, size_t len) +{ + int fd; + uint got, max; + ssize_t dict; + off_t end; + z_stream strm; + unsigned char buf[DICT]; + + /* compress and append compressed data */ + if (len) { + /* set up for deflate, allocating memory */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + if (deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8, + Z_DEFAULT_STRATEGY) != Z_OK) + return -2; + + /* read in dictionary (last 32K of data that was compressed) */ + strcpy(log->end, ".dict"); + fd = open(log->path, O_RDONLY, 0); + if (fd >= 0) { + dict = read(fd, buf, DICT); + close(fd); + if (dict < 0) { + deflateEnd(&strm); + return -1; + } + if (dict) + deflateSetDictionary(&strm, buf, (uint)dict); + } + log_touch(log); + + /* prime deflate with last bits of previous block, position write + pointer to write those bits and overwrite what follows */ + if (lseek(log->fd, log->first - (log->back > 8 ? 2 : 1), + SEEK_SET) < 0 || + read(log->fd, buf, 1) != 1 || lseek(log->fd, -1, SEEK_CUR) < 0) { + deflateEnd(&strm); + return -1; + } + deflatePrime(&strm, (8 - log->back) & 7, *buf); + + /* compress, finishing with a partial non-last empty static block */ + strm.next_in = data; + max = (((uint)0 - 1) >> 1) + 1; /* in case int smaller than size_t */ + do { + strm.avail_in = len > max ? max : (uint)len; + len -= strm.avail_in; + do { + strm.avail_out = DICT; + strm.next_out = buf; + deflate(&strm, len ? Z_NO_FLUSH : Z_PARTIAL_FLUSH); + got = DICT - strm.avail_out; + if (got && write(log->fd, buf, got) != got) { + deflateEnd(&strm); + return -1; + } + log_touch(log); + } while (strm.avail_out == 0); + } while (len); + deflateEnd(&strm); + BAIL(5); + + /* find start of empty static block -- scanning backwards the first one + bit is the second bit of the block, if the last byte is zero, then + we know the byte before that has a one in the top bit, since an + empty static block is ten bits long */ + if ((log->first = lseek(log->fd, -1, SEEK_CUR)) < 0 || + read(log->fd, buf, 1) != 1) + return -1; + log->first++; + if (*buf) { + log->back = 1; + while ((*buf & ((uint)1 << (8 - log->back++))) == 0) + ; /* guaranteed to terminate, since *buf != 0 */ + } + else + log->back = 10; + + /* update compressed crc and length */ + log->ccrc = log->tcrc; + log->clen = log->tlen; + } + else { + /* no data to compress -- fix up existing gzip stream */ + log->tcrc = log->ccrc; + log->tlen = log->clen; + } + + /* complete and truncate gzip stream */ + log->last = log->first; + log->stored = 0; + PUT4(buf, log->tcrc); + PUT4(buf + 4, log->tlen); + if (log_last(log, 1) || write(log->fd, buf, 8) != 8 || + (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end)) + return -1; + BAIL(6); + + /* mark as being in the replace operation */ + if (log_mark(log, REPLACE_OP)) + return -1; + + /* execute the replace operation and mark the file as done */ + return log_replace(log); +} + +/* log a repair record to the .repairs file */ +local void log_log(struct log *log, int op, char *record) +{ + time_t now; + FILE *rec; + + now = time(NULL); + strcpy(log->end, ".repairs"); + rec = fopen(log->path, "a"); + if (rec == NULL) + return; + fprintf(rec, "%.24s %s recovery: %s\n", ctime(&now), op == APPEND_OP ? + "append" : (op == COMPRESS_OP ? "compress" : "replace"), record); + fclose(rec); + return; +} + +/* Recover the interrupted operation op. First read foo.add for recovering an + append or compress operation. Return -1 if there was an error reading or + writing foo.gz or reading an existing foo.add, or -2 if there was a memory + allocation failure. */ +local int log_recover(struct log *log, int op) +{ + int fd, ret = 0; + unsigned char *data = NULL; + size_t len = 0; + struct stat st; + + /* log recovery */ + log_log(log, op, "start"); + + /* load foo.add file if expected and present */ + if (op == APPEND_OP || op == COMPRESS_OP) { + strcpy(log->end, ".add"); + if (stat(log->path, &st) == 0 && st.st_size) { + len = (size_t)(st.st_size); + if (len != st.st_size || (data = malloc(st.st_size)) == NULL) { + log_log(log, op, "allocation failure"); + return -2; + } + if ((fd = open(log->path, O_RDONLY, 0)) < 0) { + log_log(log, op, ".add file read failure"); + return -1; + } + ret = read(fd, data, len) != len; + close(fd); + if (ret) { + log_log(log, op, ".add file read failure"); + return -1; + } + log_log(log, op, "loaded .add file"); + } + else + log_log(log, op, "missing .add file!"); + } + + /* recover the interrupted operation */ + switch (op) { + case APPEND_OP: + ret = log_append(log, data, len); + break; + case COMPRESS_OP: + ret = log_compress(log, data, len); + break; + case REPLACE_OP: + ret = log_replace(log); + } + + /* log status */ + log_log(log, op, ret ? "failure" : "complete"); + + /* clean up */ + if (data != NULL) + free(data); + return ret; +} + +/* Close the foo.gz file (if open) and release the lock. */ +local void log_close(struct log *log) +{ + if (log->fd >= 0) + close(log->fd); + log->fd = -1; + log_unlock(log); +} + +/* Open foo.gz, verify the header, and load the extra field contents, after + first creating the foo.lock file to gain exclusive access to the foo.* + files. If foo.gz does not exist or is empty, then write the initial header, + extra, and body content of an empty foo.gz log file. If there is an error + creating the lock file due to access restrictions, or an error reading or + writing the foo.gz file, or if the foo.gz file is not a proper log file for + this object (e.g. not a gzip file or does not contain the expected extra + field), then return true. If there is an error, the lock is released. + Otherwise, the lock is left in place. */ +local int log_open(struct log *log) +{ + int op; + + /* release open file resource if left over -- can occur if lock lost + between gzlog_open() and gzlog_write() */ + if (log->fd >= 0) + close(log->fd); + log->fd = -1; + + /* negotiate exclusive access */ + if (log_lock(log) < 0) + return -1; + + /* open the log file, foo.gz */ + strcpy(log->end, ".gz"); + log->fd = open(log->path, O_RDWR | O_CREAT, 0644); + if (log->fd < 0) { + log_close(log); + return -1; + } + + /* if new, initialize foo.gz with an empty log, delete old dictionary */ + if (lseek(log->fd, 0, SEEK_END) == 0) { + if (write(log->fd, log_gzhead, HEAD) != HEAD || + write(log->fd, log_gzext, EXTRA) != EXTRA || + write(log->fd, log_gzbody, BODY) != BODY) { + log_close(log); + return -1; + } + strcpy(log->end, ".dict"); + unlink(log->path); + } + + /* verify log file and load extra field information */ + if ((op = log_head(log)) < 0) { + log_close(log); + return -1; + } + + /* check for interrupted process and if so, recover */ + if (op != NO_OP && log_recover(log, op)) { + log_close(log); + return -1; + } + + /* touch the lock file to prevent another process from grabbing it */ + log_touch(log); + return 0; +} + +/* See gzlog.h for the description of the external methods below */ +gzlog *gzlog_open(char *path) +{ + size_t n; + struct log *log; + + /* check arguments */ + if (path == NULL || *path == 0) + return NULL; + + /* allocate and initialize log structure */ + log = malloc(sizeof(struct log)); + if (log == NULL) + return NULL; + strcpy(log->id, LOGID); + log->fd = -1; + + /* save path and end of path for name construction */ + n = strlen(path); + log->path = malloc(n + 9); /* allow for ".repairs" */ + if (log->path == NULL) { + free(log); + return NULL; + } + strcpy(log->path, path); + log->end = log->path + n; + + /* gain exclusive access and verify log file -- may perform a + recovery operation if needed */ + if (log_open(log)) { + free(log->path); + free(log); + return NULL; + } + + /* return pointer to log structure */ + return log; +} + +/* gzlog_compress() return values: + 0: all good + -1: file i/o error (usually access issue) + -2: memory allocation failure + -3: invalid log pointer argument */ +int gzlog_compress(gzlog *logd) +{ + int fd, ret; + uint block; + size_t len, next; + unsigned char *data, buf[5]; + struct log *log = logd; + + /* check arguments */ + if (log == NULL || strcmp(log->id, LOGID) || len < 0) + return -3; + + /* see if we lost the lock -- if so get it again and reload the extra + field information (it probably changed), recover last operation if + necessary */ + if (log_check(log) && log_open(log)) + return -1; + + /* create space for uncompressed data */ + len = ((size_t)(log->last - log->first) & ~(((size_t)1 << 10) - 1)) + + log->stored; + if ((data = malloc(len)) == NULL) + return -2; + + /* do statement here is just a cheap trick for error handling */ + do { + /* read in the uncompressed data */ + if (lseek(log->fd, log->first - 1, SEEK_SET) < 0) + break; + next = 0; + while (next < len) { + if (read(log->fd, buf, 5) != 5) + break; + block = PULL2(buf + 1); + if (next + block > len || + read(log->fd, (char *)data + next, block) != block) + break; + next += block; + } + if (lseek(log->fd, 0, SEEK_CUR) != log->last + 4 + log->stored) + break; + log_touch(log); + + /* write the uncompressed data to the .add file */ + strcpy(log->end, ".add"); + fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (fd < 0) + break; + ret = write(fd, data, len) != len; + if (ret | close(fd)) + break; + log_touch(log); + + /* write the dictionary for the next compress to the .temp file */ + strcpy(log->end, ".temp"); + fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (fd < 0) + break; + next = DICT > len ? len : DICT; + ret = write(fd, (char *)data + len - next, next) != next; + if (ret | close(fd)) + break; + log_touch(log); + + /* roll back to compressed data, mark the compress in progress */ + log->last = log->first; + log->stored = 0; + if (log_mark(log, COMPRESS_OP)) + break; + BAIL(7); + + /* compress and append the data (clears mark) */ + ret = log_compress(log, data, len); + free(data); + return ret; + } while (0); + + /* broke out of do above on i/o error */ + free(data); + return -1; +} + +/* gzlog_write() return values: + 0: all good + -1: file i/o error (usually access issue) + -2: memory allocation failure + -3: invalid log pointer argument */ +int gzlog_write(gzlog *logd, void *data, size_t len) +{ + int fd, ret; + struct log *log = logd; + + /* check arguments */ + if (log == NULL || strcmp(log->id, LOGID) || len < 0) + return -3; + if (data == NULL || len == 0) + return 0; + + /* see if we lost the lock -- if so get it again and reload the extra + field information (it probably changed), recover last operation if + necessary */ + if (log_check(log) && log_open(log)) + return -1; + + /* create and write .add file */ + strcpy(log->end, ".add"); + fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (fd < 0) + return -1; + ret = write(fd, data, len) != len; + if (ret | close(fd)) + return -1; + log_touch(log); + + /* mark log file with append in progress */ + if (log_mark(log, APPEND_OP)) + return -1; + BAIL(8); + + /* append data (clears mark) */ + if (log_append(log, data, len)) + return -1; + + /* check to see if it's time to compress -- if not, then done */ + if (((log->last - log->first) >> 10) + (log->stored >> 10) < TRIGGER) + return 0; + + /* time to compress */ + return gzlog_compress(log); +} + +/* gzlog_close() return values: + 0: ok + -3: invalid log pointer argument */ +int gzlog_close(gzlog *logd) +{ + struct log *log = logd; + + /* check arguments */ + if (log == NULL || strcmp(log->id, LOGID)) + return -3; + + /* close the log file and release the lock */ + log_close(log); + + /* free structure and return */ + if (log->path != NULL) + free(log->path); + strcpy(log->id, "bad"); + free(log); + return 0; +} diff --git a/3party/zlib/examples/gzlog.h b/3party/zlib/examples/gzlog.h new file mode 100644 index 0000000000..c46142673d --- /dev/null +++ b/3party/zlib/examples/gzlog.h @@ -0,0 +1,89 @@ +/* gzlog.h + Copyright (C) 2004, 2008 Mark Adler, all rights reserved + version 2.0, 25 Apr 2008 + + This software is provided 'as-is', without any express or implied + warranty. In no event will the author be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Mark Adler madler@alumni.caltech.edu + */ + +/* Version History: + 1.0 26 Nov 2004 First version + 2.0 25 Apr 2008 Complete redesign for recovery of interrupted operations + Interface changed slightly in that now path is a prefix + Compression now occurs as needed during gzlog_write() + gzlog_write() now always leaves the log file as valid gzip + */ + +/* + The gzlog object allows writing short messages to a gzipped log file, + opening the log file locked for small bursts, and then closing it. The log + object works by appending stored (uncompressed) data to the gzip file until + 1 MB has been accumulated. At that time, the stored data is compressed, and + replaces the uncompressed data in the file. The log file is truncated to + its new size at that time. After each write operation, the log file is a + valid gzip file that can decompressed to recover what was written. + + The gzlog operations can be interupted at any point due to an application or + system crash, and the log file will be recovered the next time the log is + opened with gzlog_open(). + */ + +#ifndef GZLOG_H +#define GZLOG_H + +/* gzlog object type */ +typedef void gzlog; + +/* Open a gzlog object, creating the log file if it does not exist. Return + NULL on error. Note that gzlog_open() could take a while to complete if it + has to wait to verify that a lock is stale (possibly for five minutes), or + if there is significant contention with other instantiations of this object + when locking the resource. path is the prefix of the file names created by + this object. If path is "foo", then the log file will be "foo.gz", and + other auxiliary files will be created and destroyed during the process: + "foo.dict" for a compression dictionary, "foo.temp" for a temporary (next) + dictionary, "foo.add" for data being added or compressed, "foo.lock" for the + lock file, and "foo.repairs" to log recovery operations performed due to + interrupted gzlog operations. A gzlog_open() followed by a gzlog_close() + will recover a previously interrupted operation, if any. */ +gzlog *gzlog_open(char *path); + +/* Write to a gzlog object. Return zero on success, -1 if there is a file i/o + error on any of the gzlog files (this should not happen if gzlog_open() + succeeded, unless the device has run out of space or leftover auxiliary + files have permissions or ownership that prevent their use), -2 if there is + a memory allocation failure, or -3 if the log argument is invalid (e.g. if + it was not created by gzlog_open()). This function will write data to the + file uncompressed, until 1 MB has been accumulated, at which time that data + will be compressed. The log file will be a valid gzip file upon successful + return. */ +int gzlog_write(gzlog *log, void *data, size_t len); + +/* Force compression of any uncompressed data in the log. This should be used + sparingly, if at all. The main application would be when a log file will + not be appended to again. If this is used to compress frequently while + appending, it will both significantly increase the execution time and + reduce the compression ratio. The return codes are the same as for + gzlog_write(). */ +int gzlog_compress(gzlog *log); + +/* Close a gzlog object. Return zero on success, -3 if the log argument is + invalid. The log object is freed, and so cannot be referenced again. */ +int gzlog_close(gzlog *log); + +#endif diff --git a/3party/zlib/examples/zlib_how.html b/3party/zlib/examples/zlib_how.html new file mode 100644 index 0000000000..444ff1c9a3 --- /dev/null +++ b/3party/zlib/examples/zlib_how.html @@ -0,0 +1,545 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" + "http://www.w3.org/TR/REC-html40/loose.dtd"> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>zlib Usage Example</title> +<!-- Copyright (c) 2004, 2005 Mark Adler. --> +</head> +<body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#00A000"> +<h2 align="center"> zlib Usage Example </h2> +We often get questions about how the <tt>deflate()</tt> and <tt>inflate()</tt> functions should be used. +Users wonder when they should provide more input, when they should use more output, +what to do with a <tt>Z_BUF_ERROR</tt>, how to make sure the process terminates properly, and +so on. So for those who have read <tt>zlib.h</tt> (a few times), and +would like further edification, below is an annotated example in C of simple routines to compress and decompress +from an input file to an output file using <tt>deflate()</tt> and <tt>inflate()</tt> respectively. The +annotations are interspersed between lines of the code. So please read between the lines. +We hope this helps explain some of the intricacies of <em>zlib</em>. +<p> +Without further adieu, here is the program <a href="zpipe.c"><tt>zpipe.c</tt></a>: +<pre><b> +/* zpipe.c: example of proper use of zlib's inflate() and deflate() + Not copyrighted -- provided to the public domain + Version 1.4 11 December 2005 Mark Adler */ + +/* Version history: + 1.0 30 Oct 2004 First version + 1.1 8 Nov 2004 Add void casting for unused return values + Use switch statement for inflate() return values + 1.2 9 Nov 2004 Add assertions to document zlib guarantees + 1.3 6 Apr 2005 Remove incorrect assertion in inf() + 1.4 11 Dec 2005 Add hack to avoid MSDOS end-of-line conversions + Avoid some compiler warnings for input and output buffers + */ +</b></pre><!-- --> +We now include the header files for the required definitions. From +<tt>stdio.h</tt> we use <tt>fopen()</tt>, <tt>fread()</tt>, <tt>fwrite()</tt>, +<tt>feof()</tt>, <tt>ferror()</tt>, and <tt>fclose()</tt> for file i/o, and +<tt>fputs()</tt> for error messages. From <tt>string.h</tt> we use +<tt>strcmp()</tt> for command line argument processing. +From <tt>assert.h</tt> we use the <tt>assert()</tt> macro. +From <tt>zlib.h</tt> +we use the basic compression functions <tt>deflateInit()</tt>, +<tt>deflate()</tt>, and <tt>deflateEnd()</tt>, and the basic decompression +functions <tt>inflateInit()</tt>, <tt>inflate()</tt>, and +<tt>inflateEnd()</tt>. +<pre><b> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include "zlib.h" +</b></pre><!-- --> +This is an ugly hack required to avoid corruption of the input and output data on +Windows/MS-DOS systems. Without this, those systems would assume that the input and output +files are text, and try to convert the end-of-line characters from one standard to +another. That would corrupt binary data, and in particular would render the compressed data unusable. +This sets the input and output to binary which suppresses the end-of-line conversions. +<tt>SET_BINARY_MODE()</tt> will be used later on <tt>stdin</tt> and <tt>stdout</tt>, at the beginning of <tt>main()</tt>. +<pre><b> +#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) +# include <fcntl.h> +# include <io.h> +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif +</b></pre><!-- --> +<tt>CHUNK</tt> is simply the buffer size for feeding data to and pulling data +from the <em>zlib</em> routines. Larger buffer sizes would be more efficient, +especially for <tt>inflate()</tt>. If the memory is available, buffers sizes +on the order of 128K or 256K bytes should be used. +<pre><b> +#define CHUNK 16384 +</b></pre><!-- --> +The <tt>def()</tt> routine compresses data from an input file to an output file. The output data +will be in the <em>zlib</em> format, which is different from the <em>gzip</em> or <em>zip</em> +formats. The <em>zlib</em> format has a very small header of only two bytes to identify it as +a <em>zlib</em> stream and to provide decoding information, and a four-byte trailer with a fast +check value to verify the integrity of the uncompressed data after decoding. +<pre><b> +/* Compress from file source to file dest until EOF on source. + def() returns Z_OK on success, Z_MEM_ERROR if memory could not be + allocated for processing, Z_STREAM_ERROR if an invalid compression + level is supplied, Z_VERSION_ERROR if the version of zlib.h and the + version of the library linked do not match, or Z_ERRNO if there is + an error reading or writing the files. */ +int def(FILE *source, FILE *dest, int level) +{ +</b></pre> +Here are the local variables for <tt>def()</tt>. <tt>ret</tt> will be used for <em>zlib</em> +return codes. <tt>flush</tt> will keep track of the current flushing state for <tt>deflate()</tt>, +which is either no flushing, or flush to completion after the end of the input file is reached. +<tt>have</tt> is the amount of data returned from <tt>deflate()</tt>. The <tt>strm</tt> structure +is used to pass information to and from the <em>zlib</em> routines, and to maintain the +<tt>deflate()</tt> state. <tt>in</tt> and <tt>out</tt> are the input and output buffers for +<tt>deflate()</tt>. +<pre><b> + int ret, flush; + unsigned have; + z_stream strm; + unsigned char in[CHUNK]; + unsigned char out[CHUNK]; +</b></pre><!-- --> +The first thing we do is to initialize the <em>zlib</em> state for compression using +<tt>deflateInit()</tt>. This must be done before the first use of <tt>deflate()</tt>. +The <tt>zalloc</tt>, <tt>zfree</tt>, and <tt>opaque</tt> fields in the <tt>strm</tt> +structure must be initialized before calling <tt>deflateInit()</tt>. Here they are +set to the <em>zlib</em> constant <tt>Z_NULL</tt> to request that <em>zlib</em> use +the default memory allocation routines. An application may also choose to provide +custom memory allocation routines here. <tt>deflateInit()</tt> will allocate on the +order of 256K bytes for the internal state. +(See <a href="zlib_tech.html"><em>zlib Technical Details</em></a>.) +<p> +<tt>deflateInit()</tt> is called with a pointer to the structure to be initialized and +the compression level, which is an integer in the range of -1 to 9. Lower compression +levels result in faster execution, but less compression. Higher levels result in +greater compression, but slower execution. The <em>zlib</em> constant Z_DEFAULT_COMPRESSION, +equal to -1, +provides a good compromise between compression and speed and is equivalent to level 6. +Level 0 actually does no compression at all, and in fact expands the data slightly to produce +the <em>zlib</em> format (it is not a byte-for-byte copy of the input). +More advanced applications of <em>zlib</em> +may use <tt>deflateInit2()</tt> here instead. Such an application may want to reduce how +much memory will be used, at some price in compression. Or it may need to request a +<em>gzip</em> header and trailer instead of a <em>zlib</em> header and trailer, or raw +encoding with no header or trailer at all. +<p> +We must check the return value of <tt>deflateInit()</tt> against the <em>zlib</em> constant +<tt>Z_OK</tt> to make sure that it was able to +allocate memory for the internal state, and that the provided arguments were valid. +<tt>deflateInit()</tt> will also check that the version of <em>zlib</em> that the <tt>zlib.h</tt> +file came from matches the version of <em>zlib</em> actually linked with the program. This +is especially important for environments in which <em>zlib</em> is a shared library. +<p> +Note that an application can initialize multiple, independent <em>zlib</em> streams, which can +operate in parallel. The state information maintained in the structure allows the <em>zlib</em> +routines to be reentrant. +<pre><b> + /* allocate deflate state */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + ret = deflateInit(&strm, level); + if (ret != Z_OK) + return ret; +</b></pre><!-- --> +With the pleasantries out of the way, now we can get down to business. The outer <tt>do</tt>-loop +reads all of the input file and exits at the bottom of the loop once end-of-file is reached. +This loop contains the only call of <tt>deflate()</tt>. So we must make sure that all of the +input data has been processed and that all of the output data has been generated and consumed +before we fall out of the loop at the bottom. +<pre><b> + /* compress until end of file */ + do { +</b></pre> +We start off by reading data from the input file. The number of bytes read is put directly +into <tt>avail_in</tt>, and a pointer to those bytes is put into <tt>next_in</tt>. We also +check to see if end-of-file on the input has been reached. If we are at the end of file, then <tt>flush</tt> is set to the +<em>zlib</em> constant <tt>Z_FINISH</tt>, which is later passed to <tt>deflate()</tt> to +indicate that this is the last chunk of input data to compress. We need to use <tt>feof()</tt> +to check for end-of-file as opposed to seeing if fewer than <tt>CHUNK</tt> bytes have been read. The +reason is that if the input file length is an exact multiple of <tt>CHUNK</tt>, we will miss +the fact that we got to the end-of-file, and not know to tell <tt>deflate()</tt> to finish +up the compressed stream. If we are not yet at the end of the input, then the <em>zlib</em> +constant <tt>Z_NO_FLUSH</tt> will be passed to <tt>deflate</tt> to indicate that we are still +in the middle of the uncompressed data. +<p> +If there is an error in reading from the input file, the process is aborted with +<tt>deflateEnd()</tt> being called to free the allocated <em>zlib</em> state before returning +the error. We wouldn't want a memory leak, now would we? <tt>deflateEnd()</tt> can be called +at any time after the state has been initialized. Once that's done, <tt>deflateInit()</tt> (or +<tt>deflateInit2()</tt>) would have to be called to start a new compression process. There is +no point here in checking the <tt>deflateEnd()</tt> return code. The deallocation can't fail. +<pre><b> + strm.avail_in = fread(in, 1, CHUNK, source); + if (ferror(source)) { + (void)deflateEnd(&strm); + return Z_ERRNO; + } + flush = feof(source) ? Z_FINISH : Z_NO_FLUSH; + strm.next_in = in; +</b></pre><!-- --> +The inner <tt>do</tt>-loop passes our chunk of input data to <tt>deflate()</tt>, and then +keeps calling <tt>deflate()</tt> until it is done producing output. Once there is no more +new output, <tt>deflate()</tt> is guaranteed to have consumed all of the input, i.e., +<tt>avail_in</tt> will be zero. +<pre><b> + /* run deflate() on input until output buffer not full, finish + compression if all of source has been read in */ + do { +</b></pre> +Output space is provided to <tt>deflate()</tt> by setting <tt>avail_out</tt> to the number +of available output bytes and <tt>next_out</tt> to a pointer to that space. +<pre><b> + strm.avail_out = CHUNK; + strm.next_out = out; +</b></pre> +Now we call the compression engine itself, <tt>deflate()</tt>. It takes as many of the +<tt>avail_in</tt> bytes at <tt>next_in</tt> as it can process, and writes as many as +<tt>avail_out</tt> bytes to <tt>next_out</tt>. Those counters and pointers are then +updated past the input data consumed and the output data written. It is the amount of +output space available that may limit how much input is consumed. +Hence the inner loop to make sure that +all of the input is consumed by providing more output space each time. Since <tt>avail_in</tt> +and <tt>next_in</tt> are updated by <tt>deflate()</tt>, we don't have to mess with those +between <tt>deflate()</tt> calls until it's all used up. +<p> +The parameters to <tt>deflate()</tt> are a pointer to the <tt>strm</tt> structure containing +the input and output information and the internal compression engine state, and a parameter +indicating whether and how to flush data to the output. Normally <tt>deflate</tt> will consume +several K bytes of input data before producing any output (except for the header), in order +to accumulate statistics on the data for optimum compression. It will then put out a burst of +compressed data, and proceed to consume more input before the next burst. Eventually, +<tt>deflate()</tt> +must be told to terminate the stream, complete the compression with provided input data, and +write out the trailer check value. <tt>deflate()</tt> will continue to compress normally as long +as the flush parameter is <tt>Z_NO_FLUSH</tt>. Once the <tt>Z_FINISH</tt> parameter is provided, +<tt>deflate()</tt> will begin to complete the compressed output stream. However depending on how +much output space is provided, <tt>deflate()</tt> may have to be called several times until it +has provided the complete compressed stream, even after it has consumed all of the input. The flush +parameter must continue to be <tt>Z_FINISH</tt> for those subsequent calls. +<p> +There are other values of the flush parameter that are used in more advanced applications. You can +force <tt>deflate()</tt> to produce a burst of output that encodes all of the input data provided +so far, even if it wouldn't have otherwise, for example to control data latency on a link with +compressed data. You can also ask that <tt>deflate()</tt> do that as well as erase any history up to +that point so that what follows can be decompressed independently, for example for random access +applications. Both requests will degrade compression by an amount depending on how often such +requests are made. +<p> +<tt>deflate()</tt> has a return value that can indicate errors, yet we do not check it here. Why +not? Well, it turns out that <tt>deflate()</tt> can do no wrong here. Let's go through +<tt>deflate()</tt>'s return values and dispense with them one by one. The possible values are +<tt>Z_OK</tt>, <tt>Z_STREAM_END</tt>, <tt>Z_STREAM_ERROR</tt>, or <tt>Z_BUF_ERROR</tt>. <tt>Z_OK</tt> +is, well, ok. <tt>Z_STREAM_END</tt> is also ok and will be returned for the last call of +<tt>deflate()</tt>. This is already guaranteed by calling <tt>deflate()</tt> with <tt>Z_FINISH</tt> +until it has no more output. <tt>Z_STREAM_ERROR</tt> is only possible if the stream is not +initialized properly, but we did initialize it properly. There is no harm in checking for +<tt>Z_STREAM_ERROR</tt> here, for example to check for the possibility that some +other part of the application inadvertently clobbered the memory containing the <em>zlib</em> state. +<tt>Z_BUF_ERROR</tt> will be explained further below, but +suffice it to say that this is simply an indication that <tt>deflate()</tt> could not consume +more input or produce more output. <tt>deflate()</tt> can be called again with more output space +or more available input, which it will be in this code. +<pre><b> + ret = deflate(&strm, flush); /* no bad return value */ + assert(ret != Z_STREAM_ERROR); /* state not clobbered */ +</b></pre> +Now we compute how much output <tt>deflate()</tt> provided on the last call, which is the +difference between how much space was provided before the call, and how much output space +is still available after the call. Then that data, if any, is written to the output file. +We can then reuse the output buffer for the next call of <tt>deflate()</tt>. Again if there +is a file i/o error, we call <tt>deflateEnd()</tt> before returning to avoid a memory leak. +<pre><b> + have = CHUNK - strm.avail_out; + if (fwrite(out, 1, have, dest) != have || ferror(dest)) { + (void)deflateEnd(&strm); + return Z_ERRNO; + } +</b></pre> +The inner <tt>do</tt>-loop is repeated until the last <tt>deflate()</tt> call fails to fill the +provided output buffer. Then we know that <tt>deflate()</tt> has done as much as it can with +the provided input, and that all of that input has been consumed. We can then fall out of this +loop and reuse the input buffer. +<p> +The way we tell that <tt>deflate()</tt> has no more output is by seeing that it did not fill +the output buffer, leaving <tt>avail_out</tt> greater than zero. However suppose that +<tt>deflate()</tt> has no more output, but just so happened to exactly fill the output buffer! +<tt>avail_out</tt> is zero, and we can't tell that <tt>deflate()</tt> has done all it can. +As far as we know, <tt>deflate()</tt> +has more output for us. So we call it again. But now <tt>deflate()</tt> produces no output +at all, and <tt>avail_out</tt> remains unchanged as <tt>CHUNK</tt>. That <tt>deflate()</tt> call +wasn't able to do anything, either consume input or produce output, and so it returns +<tt>Z_BUF_ERROR</tt>. (See, I told you I'd cover this later.) However this is not a problem at +all. Now we finally have the desired indication that <tt>deflate()</tt> is really done, +and so we drop out of the inner loop to provide more input to <tt>deflate()</tt>. +<p> +With <tt>flush</tt> set to <tt>Z_FINISH</tt>, this final set of <tt>deflate()</tt> calls will +complete the output stream. Once that is done, subsequent calls of <tt>deflate()</tt> would return +<tt>Z_STREAM_ERROR</tt> if the flush parameter is not <tt>Z_FINISH</tt>, and do no more processing +until the state is reinitialized. +<p> +Some applications of <em>zlib</em> have two loops that call <tt>deflate()</tt> +instead of the single inner loop we have here. The first loop would call +without flushing and feed all of the data to <tt>deflate()</tt>. The second loop would call +<tt>deflate()</tt> with no more +data and the <tt>Z_FINISH</tt> parameter to complete the process. As you can see from this +example, that can be avoided by simply keeping track of the current flush state. +<pre><b> + } while (strm.avail_out == 0); + assert(strm.avail_in == 0); /* all input will be used */ +</b></pre><!-- --> +Now we check to see if we have already processed all of the input file. That information was +saved in the <tt>flush</tt> variable, so we see if that was set to <tt>Z_FINISH</tt>. If so, +then we're done and we fall out of the outer loop. We're guaranteed to get <tt>Z_STREAM_END</tt> +from the last <tt>deflate()</tt> call, since we ran it until the last chunk of input was +consumed and all of the output was generated. +<pre><b> + /* done when last data in file processed */ + } while (flush != Z_FINISH); + assert(ret == Z_STREAM_END); /* stream will be complete */ +</b></pre><!-- --> +The process is complete, but we still need to deallocate the state to avoid a memory leak +(or rather more like a memory hemorrhage if you didn't do this). Then +finally we can return with a happy return value. +<pre><b> + /* clean up and return */ + (void)deflateEnd(&strm); + return Z_OK; +} +</b></pre><!-- --> +Now we do the same thing for decompression in the <tt>inf()</tt> routine. <tt>inf()</tt> +decompresses what is hopefully a valid <em>zlib</em> stream from the input file and writes the +uncompressed data to the output file. Much of the discussion above for <tt>def()</tt> +applies to <tt>inf()</tt> as well, so the discussion here will focus on the differences between +the two. +<pre><b> +/* Decompress from file source to file dest until stream ends or EOF. + inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be + allocated for processing, Z_DATA_ERROR if the deflate data is + invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and + the version of the library linked do not match, or Z_ERRNO if there + is an error reading or writing the files. */ +int inf(FILE *source, FILE *dest) +{ +</b></pre> +The local variables have the same functionality as they do for <tt>def()</tt>. The +only difference is that there is no <tt>flush</tt> variable, since <tt>inflate()</tt> +can tell from the <em>zlib</em> stream itself when the stream is complete. +<pre><b> + int ret; + unsigned have; + z_stream strm; + unsigned char in[CHUNK]; + unsigned char out[CHUNK]; +</b></pre><!-- --> +The initialization of the state is the same, except that there is no compression level, +of course, and two more elements of the structure are initialized. <tt>avail_in</tt> +and <tt>next_in</tt> must be initialized before calling <tt>inflateInit()</tt>. This +is because the application has the option to provide the start of the zlib stream in +order for <tt>inflateInit()</tt> to have access to information about the compression +method to aid in memory allocation. In the current implementation of <em>zlib</em> +(up through versions 1.2.x), the method-dependent memory allocations are deferred to the first call of +<tt>inflate()</tt> anyway. However those fields must be initialized since later versions +of <em>zlib</em> that provide more compression methods may take advantage of this interface. +In any case, no decompression is performed by <tt>inflateInit()</tt>, so the +<tt>avail_out</tt> and <tt>next_out</tt> fields do not need to be initialized before calling. +<p> +Here <tt>avail_in</tt> is set to zero and <tt>next_in</tt> is set to <tt>Z_NULL</tt> to +indicate that no input data is being provided. +<pre><b> + /* allocate inflate state */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit(&strm); + if (ret != Z_OK) + return ret; +</b></pre><!-- --> +The outer <tt>do</tt>-loop decompresses input until <tt>inflate()</tt> indicates +that it has reached the end of the compressed data and has produced all of the uncompressed +output. This is in contrast to <tt>def()</tt> which processes all of the input file. +If end-of-file is reached before the compressed data self-terminates, then the compressed +data is incomplete and an error is returned. +<pre><b> + /* decompress until deflate stream ends or end of file */ + do { +</b></pre> +We read input data and set the <tt>strm</tt> structure accordingly. If we've reached the +end of the input file, then we leave the outer loop and report an error, since the +compressed data is incomplete. Note that we may read more data than is eventually consumed +by <tt>inflate()</tt>, if the input file continues past the <em>zlib</em> stream. +For applications where <em>zlib</em> streams are embedded in other data, this routine would +need to be modified to return the unused data, or at least indicate how much of the input +data was not used, so the application would know where to pick up after the <em>zlib</em> stream. +<pre><b> + strm.avail_in = fread(in, 1, CHUNK, source); + if (ferror(source)) { + (void)inflateEnd(&strm); + return Z_ERRNO; + } + if (strm.avail_in == 0) + break; + strm.next_in = in; +</b></pre><!-- --> +The inner <tt>do</tt>-loop has the same function it did in <tt>def()</tt>, which is to +keep calling <tt>inflate()</tt> until has generated all of the output it can with the +provided input. +<pre><b> + /* run inflate() on input until output buffer not full */ + do { +</b></pre> +Just like in <tt>def()</tt>, the same output space is provided for each call of <tt>inflate()</tt>. +<pre><b> + strm.avail_out = CHUNK; + strm.next_out = out; +</b></pre> +Now we run the decompression engine itself. There is no need to adjust the flush parameter, since +the <em>zlib</em> format is self-terminating. The main difference here is that there are +return values that we need to pay attention to. <tt>Z_DATA_ERROR</tt> +indicates that <tt>inflate()</tt> detected an error in the <em>zlib</em> compressed data format, +which means that either the data is not a <em>zlib</em> stream to begin with, or that the data was +corrupted somewhere along the way since it was compressed. The other error to be processed is +<tt>Z_MEM_ERROR</tt>, which can occur since memory allocation is deferred until <tt>inflate()</tt> +needs it, unlike <tt>deflate()</tt>, whose memory is allocated at the start by <tt>deflateInit()</tt>. +<p> +Advanced applications may use +<tt>deflateSetDictionary()</tt> to prime <tt>deflate()</tt> with a set of likely data to improve the +first 32K or so of compression. This is noted in the <em>zlib</em> header, so <tt>inflate()</tt> +requests that that dictionary be provided before it can start to decompress. Without the dictionary, +correct decompression is not possible. For this routine, we have no idea what the dictionary is, +so the <tt>Z_NEED_DICT</tt> indication is converted to a <tt>Z_DATA_ERROR</tt>. +<p> +<tt>inflate()</tt> can also return <tt>Z_STREAM_ERROR</tt>, which should not be possible here, +but could be checked for as noted above for <tt>def()</tt>. <tt>Z_BUF_ERROR</tt> does not need to be +checked for here, for the same reasons noted for <tt>def()</tt>. <tt>Z_STREAM_END</tt> will be +checked for later. +<pre><b> + ret = inflate(&strm, Z_NO_FLUSH); + assert(ret != Z_STREAM_ERROR); /* state not clobbered */ + switch (ret) { + case Z_NEED_DICT: + ret = Z_DATA_ERROR; /* and fall through */ + case Z_DATA_ERROR: + case Z_MEM_ERROR: + (void)inflateEnd(&strm); + return ret; + } +</b></pre> +The output of <tt>inflate()</tt> is handled identically to that of <tt>deflate()</tt>. +<pre><b> + have = CHUNK - strm.avail_out; + if (fwrite(out, 1, have, dest) != have || ferror(dest)) { + (void)inflateEnd(&strm); + return Z_ERRNO; + } +</b></pre> +The inner <tt>do</tt>-loop ends when <tt>inflate()</tt> has no more output as indicated +by not filling the output buffer, just as for <tt>deflate()</tt>. In this case, we cannot +assert that <tt>strm.avail_in</tt> will be zero, since the deflate stream may end before the file +does. +<pre><b> + } while (strm.avail_out == 0); +</b></pre><!-- --> +The outer <tt>do</tt>-loop ends when <tt>inflate()</tt> reports that it has reached the +end of the input <em>zlib</em> stream, has completed the decompression and integrity +check, and has provided all of the output. This is indicated by the <tt>inflate()</tt> +return value <tt>Z_STREAM_END</tt>. The inner loop is guaranteed to leave <tt>ret</tt> +equal to <tt>Z_STREAM_END</tt> if the last chunk of the input file read contained the end +of the <em>zlib</em> stream. So if the return value is not <tt>Z_STREAM_END</tt>, the +loop continues to read more input. +<pre><b> + /* done when inflate() says it's done */ + } while (ret != Z_STREAM_END); +</b></pre><!-- --> +At this point, decompression successfully completed, or we broke out of the loop due to no +more data being available from the input file. If the last <tt>inflate()</tt> return value +is not <tt>Z_STREAM_END</tt>, then the <em>zlib</em> stream was incomplete and a data error +is returned. Otherwise, we return with a happy return value. Of course, <tt>inflateEnd()</tt> +is called first to avoid a memory leak. +<pre><b> + /* clean up and return */ + (void)inflateEnd(&strm); + return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR; +} +</b></pre><!-- --> +That ends the routines that directly use <em>zlib</em>. The following routines make this +a command-line program by running data through the above routines from <tt>stdin</tt> to +<tt>stdout</tt>, and handling any errors reported by <tt>def()</tt> or <tt>inf()</tt>. +<p> +<tt>zerr()</tt> is used to interpret the possible error codes from <tt>def()</tt> +and <tt>inf()</tt>, as detailed in their comments above, and print out an error message. +Note that these are only a subset of the possible return values from <tt>deflate()</tt> +and <tt>inflate()</tt>. +<pre><b> +/* report a zlib or i/o error */ +void zerr(int ret) +{ + fputs("zpipe: ", stderr); + switch (ret) { + case Z_ERRNO: + if (ferror(stdin)) + fputs("error reading stdin\n", stderr); + if (ferror(stdout)) + fputs("error writing stdout\n", stderr); + break; + case Z_STREAM_ERROR: + fputs("invalid compression level\n", stderr); + break; + case Z_DATA_ERROR: + fputs("invalid or incomplete deflate data\n", stderr); + break; + case Z_MEM_ERROR: + fputs("out of memory\n", stderr); + break; + case Z_VERSION_ERROR: + fputs("zlib version mismatch!\n", stderr); + } +} +</b></pre><!-- --> +Here is the <tt>main()</tt> routine used to test <tt>def()</tt> and <tt>inf()</tt>. The +<tt>zpipe</tt> command is simply a compression pipe from <tt>stdin</tt> to <tt>stdout</tt>, if +no arguments are given, or it is a decompression pipe if <tt>zpipe -d</tt> is used. If any other +arguments are provided, no compression or decompression is performed. Instead a usage +message is displayed. Examples are <tt>zpipe < foo.txt > foo.txt.z</tt> to compress, and +<tt>zpipe -d < foo.txt.z > foo.txt</tt> to decompress. +<pre><b> +/* compress or decompress from stdin to stdout */ +int main(int argc, char **argv) +{ + int ret; + + /* avoid end-of-line conversions */ + SET_BINARY_MODE(stdin); + SET_BINARY_MODE(stdout); + + /* do compression if no arguments */ + if (argc == 1) { + ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION); + if (ret != Z_OK) + zerr(ret); + return ret; + } + + /* do decompression if -d specified */ + else if (argc == 2 && strcmp(argv[1], "-d") == 0) { + ret = inf(stdin, stdout); + if (ret != Z_OK) + zerr(ret); + return ret; + } + + /* otherwise, report usage */ + else { + fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr); + return 1; + } +} +</b></pre> +<hr> +<i>Copyright (c) 2004, 2005 by Mark Adler<br>Last modified 11 December 2005</i> +</body> +</html> diff --git a/3party/zlib/examples/zpipe.c b/3party/zlib/examples/zpipe.c new file mode 100644 index 0000000000..83535d1693 --- /dev/null +++ b/3party/zlib/examples/zpipe.c @@ -0,0 +1,205 @@ +/* zpipe.c: example of proper use of zlib's inflate() and deflate() + Not copyrighted -- provided to the public domain + Version 1.4 11 December 2005 Mark Adler */ + +/* Version history: + 1.0 30 Oct 2004 First version + 1.1 8 Nov 2004 Add void casting for unused return values + Use switch statement for inflate() return values + 1.2 9 Nov 2004 Add assertions to document zlib guarantees + 1.3 6 Apr 2005 Remove incorrect assertion in inf() + 1.4 11 Dec 2005 Add hack to avoid MSDOS end-of-line conversions + Avoid some compiler warnings for input and output buffers + */ + +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include "zlib.h" + +#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) +# include <fcntl.h> +# include <io.h> +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif + +#define CHUNK 16384 + +/* Compress from file source to file dest until EOF on source. + def() returns Z_OK on success, Z_MEM_ERROR if memory could not be + allocated for processing, Z_STREAM_ERROR if an invalid compression + level is supplied, Z_VERSION_ERROR if the version of zlib.h and the + version of the library linked do not match, or Z_ERRNO if there is + an error reading or writing the files. */ +int def(FILE *source, FILE *dest, int level) +{ + int ret, flush; + unsigned have; + z_stream strm; + unsigned char in[CHUNK]; + unsigned char out[CHUNK]; + + /* allocate deflate state */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + ret = deflateInit(&strm, level); + if (ret != Z_OK) + return ret; + + /* compress until end of file */ + do { + strm.avail_in = fread(in, 1, CHUNK, source); + if (ferror(source)) { + (void)deflateEnd(&strm); + return Z_ERRNO; + } + flush = feof(source) ? Z_FINISH : Z_NO_FLUSH; + strm.next_in = in; + + /* run deflate() on input until output buffer not full, finish + compression if all of source has been read in */ + do { + strm.avail_out = CHUNK; + strm.next_out = out; + ret = deflate(&strm, flush); /* no bad return value */ + assert(ret != Z_STREAM_ERROR); /* state not clobbered */ + have = CHUNK - strm.avail_out; + if (fwrite(out, 1, have, dest) != have || ferror(dest)) { + (void)deflateEnd(&strm); + return Z_ERRNO; + } + } while (strm.avail_out == 0); + assert(strm.avail_in == 0); /* all input will be used */ + + /* done when last data in file processed */ + } while (flush != Z_FINISH); + assert(ret == Z_STREAM_END); /* stream will be complete */ + + /* clean up and return */ + (void)deflateEnd(&strm); + return Z_OK; +} + +/* Decompress from file source to file dest until stream ends or EOF. + inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be + allocated for processing, Z_DATA_ERROR if the deflate data is + invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and + the version of the library linked do not match, or Z_ERRNO if there + is an error reading or writing the files. */ +int inf(FILE *source, FILE *dest) +{ + int ret; + unsigned have; + z_stream strm; + unsigned char in[CHUNK]; + unsigned char out[CHUNK]; + + /* allocate inflate state */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit(&strm); + if (ret != Z_OK) + return ret; + + /* decompress until deflate stream ends or end of file */ + do { + strm.avail_in = fread(in, 1, CHUNK, source); + if (ferror(source)) { + (void)inflateEnd(&strm); + return Z_ERRNO; + } + if (strm.avail_in == 0) + break; + strm.next_in = in; + + /* run inflate() on input until output buffer not full */ + do { + strm.avail_out = CHUNK; + strm.next_out = out; + ret = inflate(&strm, Z_NO_FLUSH); + assert(ret != Z_STREAM_ERROR); /* state not clobbered */ + switch (ret) { + case Z_NEED_DICT: + ret = Z_DATA_ERROR; /* and fall through */ + case Z_DATA_ERROR: + case Z_MEM_ERROR: + (void)inflateEnd(&strm); + return ret; + } + have = CHUNK - strm.avail_out; + if (fwrite(out, 1, have, dest) != have || ferror(dest)) { + (void)inflateEnd(&strm); + return Z_ERRNO; + } + } while (strm.avail_out == 0); + + /* done when inflate() says it's done */ + } while (ret != Z_STREAM_END); + + /* clean up and return */ + (void)inflateEnd(&strm); + return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR; +} + +/* report a zlib or i/o error */ +void zerr(int ret) +{ + fputs("zpipe: ", stderr); + switch (ret) { + case Z_ERRNO: + if (ferror(stdin)) + fputs("error reading stdin\n", stderr); + if (ferror(stdout)) + fputs("error writing stdout\n", stderr); + break; + case Z_STREAM_ERROR: + fputs("invalid compression level\n", stderr); + break; + case Z_DATA_ERROR: + fputs("invalid or incomplete deflate data\n", stderr); + break; + case Z_MEM_ERROR: + fputs("out of memory\n", stderr); + break; + case Z_VERSION_ERROR: + fputs("zlib version mismatch!\n", stderr); + } +} + +/* compress or decompress from stdin to stdout */ +int main(int argc, char **argv) +{ + int ret; + + /* avoid end-of-line conversions */ + SET_BINARY_MODE(stdin); + SET_BINARY_MODE(stdout); + + /* do compression if no arguments */ + if (argc == 1) { + ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION); + if (ret != Z_OK) + zerr(ret); + return ret; + } + + /* do decompression if -d specified */ + else if (argc == 2 && strcmp(argv[1], "-d") == 0) { + ret = inf(stdin, stdout); + if (ret != Z_OK) + zerr(ret); + return ret; + } + + /* otherwise, report usage */ + else { + fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr); + return 1; + } +} diff --git a/3party/zlib/examples/zran.c b/3party/zlib/examples/zran.c new file mode 100644 index 0000000000..617a13086f --- /dev/null +++ b/3party/zlib/examples/zran.c @@ -0,0 +1,404 @@ +/* zran.c -- example of zlib/gzip stream indexing and random access + * Copyright (C) 2005 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + Version 1.0 29 May 2005 Mark Adler */ + +/* Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary() + for random access of a compressed file. A file containing a zlib or gzip + stream is provided on the command line. The compressed stream is decoded in + its entirety, and an index built with access points about every SPAN bytes + in the uncompressed output. The compressed file is left open, and can then + be read randomly, having to decompress on the average SPAN/2 uncompressed + bytes before getting to the desired block of data. + + An access point can be created at the start of any deflate block, by saving + the starting file offset and bit of that block, and the 32K bytes of + uncompressed data that precede that block. Also the uncompressed offset of + that block is saved to provide a referece for locating a desired starting + point in the uncompressed stream. build_index() works by decompressing the + input zlib or gzip stream a block at a time, and at the end of each block + deciding if enough uncompressed data has gone by to justify the creation of + a new access point. If so, that point is saved in a data structure that + grows as needed to accommodate the points. + + To use the index, an offset in the uncompressed data is provided, for which + the latest accees point at or preceding that offset is located in the index. + The input file is positioned to the specified location in the index, and if + necessary the first few bits of the compressed data is read from the file. + inflate is initialized with those bits and the 32K of uncompressed data, and + the decompression then proceeds until the desired offset in the file is + reached. Then the decompression continues to read the desired uncompressed + data from the file. + + Another approach would be to generate the index on demand. In that case, + requests for random access reads from the compressed data would try to use + the index, but if a read far enough past the end of the index is required, + then further index entries would be generated and added. + + There is some fair bit of overhead to starting inflation for the random + access, mainly copying the 32K byte dictionary. So if small pieces of the + file are being accessed, it would make sense to implement a cache to hold + some lookahead and avoid many calls to extract() for small lengths. + + Another way to build an index would be to use inflateCopy(). That would + not be constrained to have access points at block boundaries, but requires + more memory per access point, and also cannot be saved to file due to the + use of pointers in the state. The approach here allows for storage of the + index in a file. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "zlib.h" + +#define local static + +#define SPAN 1048576L /* desired distance between access points */ +#define WINSIZE 32768U /* sliding window size */ +#define CHUNK 16384 /* file input buffer size */ + +/* access point entry */ +struct point { + off_t out; /* corresponding offset in uncompressed data */ + off_t in; /* offset in input file of first full byte */ + int bits; /* number of bits (1-7) from byte at in - 1, or 0 */ + unsigned char window[WINSIZE]; /* preceding 32K of uncompressed data */ +}; + +/* access point list */ +struct access { + int have; /* number of list entries filled in */ + int size; /* number of list entries allocated */ + struct point *list; /* allocated list */ +}; + +/* Deallocate an index built by build_index() */ +local void free_index(struct access *index) +{ + if (index != NULL) { + free(index->list); + free(index); + } +} + +/* Add an entry to the access point list. If out of memory, deallocate the + existing list and return NULL. */ +local struct access *addpoint(struct access *index, int bits, + off_t in, off_t out, unsigned left, unsigned char *window) +{ + struct point *next; + + /* if list is empty, create it (start with eight points) */ + if (index == NULL) { + index = malloc(sizeof(struct access)); + if (index == NULL) return NULL; + index->list = malloc(sizeof(struct point) << 3); + if (index->list == NULL) { + free(index); + return NULL; + } + index->size = 8; + index->have = 0; + } + + /* if list is full, make it bigger */ + else if (index->have == index->size) { + index->size <<= 1; + next = realloc(index->list, sizeof(struct point) * index->size); + if (next == NULL) { + free_index(index); + return NULL; + } + index->list = next; + } + + /* fill in entry and increment how many we have */ + next = index->list + index->have; + next->bits = bits; + next->in = in; + next->out = out; + if (left) + memcpy(next->window, window + WINSIZE - left, left); + if (left < WINSIZE) + memcpy(next->window + left, window, WINSIZE - left); + index->have++; + + /* return list, possibly reallocated */ + return index; +} + +/* Make one entire pass through the compressed stream and build an index, with + access points about every span bytes of uncompressed output -- span is + chosen to balance the speed of random access against the memory requirements + of the list, about 32K bytes per access point. Note that data after the end + of the first zlib or gzip stream in the file is ignored. build_index() + returns the number of access points on success (>= 1), Z_MEM_ERROR for out + of memory, Z_DATA_ERROR for an error in the input file, or Z_ERRNO for a + file read error. On success, *built points to the resulting index. */ +local int build_index(FILE *in, off_t span, struct access **built) +{ + int ret; + off_t totin, totout; /* our own total counters to avoid 4GB limit */ + off_t last; /* totout value of last access point */ + struct access *index; /* access points being generated */ + z_stream strm; + unsigned char input[CHUNK]; + unsigned char window[WINSIZE]; + + /* initialize inflate */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, 47); /* automatic zlib or gzip decoding */ + if (ret != Z_OK) + return ret; + + /* inflate the input, maintain a sliding window, and build an index -- this + also validates the integrity of the compressed data using the check + information at the end of the gzip or zlib stream */ + totin = totout = last = 0; + index = NULL; /* will be allocated by first addpoint() */ + strm.avail_out = 0; + do { + /* get some compressed data from input file */ + strm.avail_in = fread(input, 1, CHUNK, in); + if (ferror(in)) { + ret = Z_ERRNO; + goto build_index_error; + } + if (strm.avail_in == 0) { + ret = Z_DATA_ERROR; + goto build_index_error; + } + strm.next_in = input; + + /* process all of that, or until end of stream */ + do { + /* reset sliding window if necessary */ + if (strm.avail_out == 0) { + strm.avail_out = WINSIZE; + strm.next_out = window; + } + + /* inflate until out of input, output, or at end of block -- + update the total input and output counters */ + totin += strm.avail_in; + totout += strm.avail_out; + ret = inflate(&strm, Z_BLOCK); /* return at end of block */ + totin -= strm.avail_in; + totout -= strm.avail_out; + if (ret == Z_NEED_DICT) + ret = Z_DATA_ERROR; + if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR) + goto build_index_error; + if (ret == Z_STREAM_END) + break; + + /* if at end of block, consider adding an index entry (note that if + data_type indicates an end-of-block, then all of the + uncompressed data from that block has been delivered, and none + of the compressed data after that block has been consumed, + except for up to seven bits) -- the totout == 0 provides an + entry point after the zlib or gzip header, and assures that the + index always has at least one access point; we avoid creating an + access point after the last block by checking bit 6 of data_type + */ + if ((strm.data_type & 128) && !(strm.data_type & 64) && + (totout == 0 || totout - last > span)) { + index = addpoint(index, strm.data_type & 7, totin, + totout, strm.avail_out, window); + if (index == NULL) { + ret = Z_MEM_ERROR; + goto build_index_error; + } + last = totout; + } + } while (strm.avail_in != 0); + } while (ret != Z_STREAM_END); + + /* clean up and return index (release unused entries in list) */ + (void)inflateEnd(&strm); + index = realloc(index, sizeof(struct point) * index->have); + index->size = index->have; + *built = index; + return index->size; + + /* return error */ + build_index_error: + (void)inflateEnd(&strm); + if (index != NULL) + free_index(index); + return ret; +} + +/* Use the index to read len bytes from offset into buf, return bytes read or + negative for error (Z_DATA_ERROR or Z_MEM_ERROR). If data is requested past + the end of the uncompressed data, then extract() will return a value less + than len, indicating how much as actually read into buf. This function + should not return a data error unless the file was modified since the index + was generated. extract() may also return Z_ERRNO if there is an error on + reading or seeking the input file. */ +local int extract(FILE *in, struct access *index, off_t offset, + unsigned char *buf, int len) +{ + int ret, skip; + z_stream strm; + struct point *here; + unsigned char input[CHUNK]; + unsigned char discard[WINSIZE]; + + /* proceed only if something reasonable to do */ + if (len < 0) + return 0; + + /* find where in stream to start */ + here = index->list; + ret = index->have; + while (--ret && here[1].out <= offset) + here++; + + /* initialize file and inflate state to start there */ + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = 0; + strm.next_in = Z_NULL; + ret = inflateInit2(&strm, -15); /* raw inflate */ + if (ret != Z_OK) + return ret; + ret = fseeko(in, here->in - (here->bits ? 1 : 0), SEEK_SET); + if (ret == -1) + goto extract_ret; + if (here->bits) { + ret = getc(in); + if (ret == -1) { + ret = ferror(in) ? Z_ERRNO : Z_DATA_ERROR; + goto extract_ret; + } + (void)inflatePrime(&strm, here->bits, ret >> (8 - here->bits)); + } + (void)inflateSetDictionary(&strm, here->window, WINSIZE); + + /* skip uncompressed bytes until offset reached, then satisfy request */ + offset -= here->out; + strm.avail_in = 0; + skip = 1; /* while skipping to offset */ + do { + /* define where to put uncompressed data, and how much */ + if (offset == 0 && skip) { /* at offset now */ + strm.avail_out = len; + strm.next_out = buf; + skip = 0; /* only do this once */ + } + if (offset > WINSIZE) { /* skip WINSIZE bytes */ + strm.avail_out = WINSIZE; + strm.next_out = discard; + offset -= WINSIZE; + } + else if (offset != 0) { /* last skip */ + strm.avail_out = (unsigned)offset; + strm.next_out = discard; + offset = 0; + } + + /* uncompress until avail_out filled, or end of stream */ + do { + if (strm.avail_in == 0) { + strm.avail_in = fread(input, 1, CHUNK, in); + if (ferror(in)) { + ret = Z_ERRNO; + goto extract_ret; + } + if (strm.avail_in == 0) { + ret = Z_DATA_ERROR; + goto extract_ret; + } + strm.next_in = input; + } + ret = inflate(&strm, Z_NO_FLUSH); /* normal inflate */ + if (ret == Z_NEED_DICT) + ret = Z_DATA_ERROR; + if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR) + goto extract_ret; + if (ret == Z_STREAM_END) + break; + } while (strm.avail_out != 0); + + /* if reach end of stream, then don't keep trying to get more */ + if (ret == Z_STREAM_END) + break; + + /* do until offset reached and requested data read, or stream ends */ + } while (skip); + + /* compute number of uncompressed bytes read after offset */ + ret = skip ? 0 : len - strm.avail_out; + + /* clean up and return bytes read or error */ + extract_ret: + (void)inflateEnd(&strm); + return ret; +} + +/* Demonstrate the use of build_index() and extract() by processing the file + provided on the command line, and the extracting 16K from about 2/3rds of + the way through the uncompressed output, and writing that to stdout. */ +int main(int argc, char **argv) +{ + int len; + off_t offset; + FILE *in; + struct access *index = NULL; + unsigned char buf[CHUNK]; + + /* open input file */ + if (argc != 2) { + fprintf(stderr, "usage: zran file.gz\n"); + return 1; + } + in = fopen(argv[1], "rb"); + if (in == NULL) { + fprintf(stderr, "zran: could not open %s for reading\n", argv[1]); + return 1; + } + + /* build index */ + len = build_index(in, SPAN, &index); + if (len < 0) { + fclose(in); + switch (len) { + case Z_MEM_ERROR: + fprintf(stderr, "zran: out of memory\n"); + break; + case Z_DATA_ERROR: + fprintf(stderr, "zran: compressed data error in %s\n", argv[1]); + break; + case Z_ERRNO: + fprintf(stderr, "zran: read error on %s\n", argv[1]); + break; + default: + fprintf(stderr, "zran: error %d while building index\n", len); + } + return 1; + } + fprintf(stderr, "zran: built index with %d access points\n", len); + + /* use index by reading some bytes from an arbitrary offset */ + offset = (index->list[index->have - 1].out << 1) / 3; + len = extract(in, index, offset, buf, CHUNK); + if (len < 0) + fprintf(stderr, "zran: extraction failed: %s error\n", + len == Z_MEM_ERROR ? "out of memory" : "input corrupted"); + else { + fwrite(buf, 1, len, stdout); + fprintf(stderr, "zran: extracted %d bytes at %llu\n", len, offset); + } + + /* clean up and exit */ + free_index(index); + fclose(in); + return 0; +} diff --git a/3party/zlib/make_vms.com b/3party/zlib/make_vms.com new file mode 100644 index 0000000000..6576490e65 --- /dev/null +++ b/3party/zlib/make_vms.com @@ -0,0 +1,804 @@ +$! make libz under VMS written by +$! Martin P.J. Zinser +$! +$! In case of problems with the install you might contact me at +$! zinser@zinser.no-ip.info(preferred) or +$! zinser@sysdev.deutsche-boerse.com (work) +$! +$! Make procedure history for Zlib +$! +$!------------------------------------------------------------------------------ +$! Version history +$! 0.01 20060120 First version to receive a number +$! 0.02 20061008 Adapt to new Makefile.in +$! 0.03 20091224 Add support for large file check +$! 0.04 20100110 Add new gzclose, gzlib, gzread, gzwrite +$! 0.05 20100221 Exchange zlibdefs.h by zconf.h.in +$! +$ on error then goto err_exit +$ set proc/parse=ext +$! +$ true = 1 +$ false = 0 +$ tmpnam = "temp_" + f$getjpi("","pid") +$ tt = tmpnam + ".txt" +$ tc = tmpnam + ".c" +$ th = tmpnam + ".h" +$ define/nolog tconfig 'th' +$ its_decc = false +$ its_vaxc = false +$ its_gnuc = false +$ s_case = False +$! +$! Setup variables holding "config" information +$! +$ Make = "" +$ name = "Zlib" +$ version = "?.?.?" +$ v_string = "ZLIB_VERSION" +$ v_file = "zlib.h" +$ ccopt = "" +$ lopts = "" +$ dnsrl = "" +$ aconf_in_file = "zconf.h.in#zconf.h_in" +$ conf_check_string = "" +$ linkonly = false +$ optfile = name + ".opt" +$ libdefs = "" +$ axp = f$getsyi("HW_MODEL").ge.1024 .and. f$getsyi("HW_MODEL").lt.4096 +$! +$ whoami = f$parse(f$enviornment("Procedure"),,,,"NO_CONCEAL") +$ mydef = F$parse(whoami,,,"DEVICE") +$ mydir = f$parse(whoami,,,"DIRECTORY") - "][" +$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type") +$! +$! Check for MMK/MMS +$! +$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS" +$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK" +$! +$! +$ gosub find_version +$! +$ open/write topt tmp.opt +$ open/write optf 'optfile' +$! +$ gosub check_opts +$! +$! Look for the compiler used +$! +$ gosub check_compiler +$ close topt +$! +$ if its_decc +$ then +$ ccopt = "/prefix=all" + ccopt +$ if f$trnlnm("SYS") .eqs. "" +$ then +$ if axp +$ then +$ define sys sys$library: +$ else +$ ccopt = "/decc" + ccopt +$ define sys decc$library_include: +$ endif +$ endif +$ endif +$ if its_vaxc .or. its_gnuc +$ then +$ if f$trnlnm("SYS").eqs."" then define sys sys$library: +$ endif +$! +$! Build a fake configure input header +$! +$ open/write conf_hin config.hin +$ write conf_hin "#undef _LARGEFILE64_SOURCE" +$ close conf_hin +$! +$! +$ i = 0 +$FIND_ACONF: +$ fname = f$element(i,"#",aconf_in_file) +$ if fname .eqs. "#" then goto AMISS_ERR +$ if f$search(fname) .eqs. "" +$ then +$ i = i + 1 +$ goto find_aconf +$ endif +$ open/read/err=aconf_err aconf_in 'fname' +$ open/write aconf zconf.h +$ACONF_LOOP: +$ read/end_of_file=aconf_exit aconf_in line +$ work = f$edit(line, "compress,trim") +$ if f$extract(0,6,work) .nes. "#undef" +$ then +$ if f$extract(0,12,work) .nes. "#cmakedefine" +$ then +$ write aconf line +$ endif +$ else +$ cdef = f$element(1," ",work) +$ gosub check_config +$ endif +$ goto aconf_loop +$ACONF_EXIT: +$ write aconf "#define VMS 1" +$ write aconf "#include <unistd.h>" +$ write aconf "#include <unixio.h>" +$ write aconf "#ifdef _LARGEFILE" +$ write aconf "#define off64_t __off64_t" +$ write aconf "#define fopen64 fopen" +$ write aconf "#define fseeko64 fseeko" +$ write aconf "#define lseek64 lseek" +$ write aconf "#define ftello64 ftell" +$ write aconf "#endif" +$ close aconf_in +$ close aconf +$ if f$search("''th'") .nes. "" then delete 'th';* +$! Build the thing plain or with mms +$! +$ write sys$output "Compiling Zlib sources ..." +$ if make.eqs."" +$ then +$ dele example.obj;*,minigzip.obj;* +$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" - + adler32.c zlib.h zconf.h +$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" - + compress.c zlib.h zconf.h +$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" - + crc32.c zlib.h zconf.h +$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" - + deflate.c deflate.h zutil.h zlib.h zconf.h +$ CALL MAKE gzclose.OBJ "CC ''CCOPT' gzclose" - + gzclose.c zutil.h zlib.h zconf.h +$ CALL MAKE gzlib.OBJ "CC ''CCOPT' gzlib" - + gzlib.c zutil.h zlib.h zconf.h +$ CALL MAKE gzread.OBJ "CC ''CCOPT' gzread" - + gzread.c zutil.h zlib.h zconf.h +$ CALL MAKE gzwrite.OBJ "CC ''CCOPT' gzwrite" - + gzwrite.c zutil.h zlib.h zconf.h +$ CALL MAKE infback.OBJ "CC ''CCOPT' infback" - + infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h +$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" - + inffast.c zutil.h zlib.h zconf.h inffast.h +$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" - + inflate.c zutil.h zlib.h zconf.h infblock.h +$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" - + inftrees.c zutil.h zlib.h zconf.h inftrees.h +$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" - + trees.c deflate.h zutil.h zlib.h zconf.h +$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" - + uncompr.c zlib.h zconf.h +$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" - + zutil.c zutil.h zlib.h zconf.h +$ write sys$output "Building Zlib ..." +$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ +$ write sys$output "Building example..." +$ CALL MAKE example.OBJ "CC ''CCOPT' example" - + example.c zlib.h zconf.h +$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb +$ if f$search("x11vms:xvmsutils.olb") .nes. "" +$ then +$ write sys$output "Building minigzip..." +$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" - + minigzip.c zlib.h zconf.h +$ call make minigzip.exe - + "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" - + minigzip.obj libz.olb +$ endif +$ else +$ gosub crea_mms +$ write sys$output "Make ''name' ''version' with ''Make' " +$ 'make' +$ endif +$! +$! Alpha gets a shareable image +$! +$ If axp +$ Then +$ gosub crea_olist +$ write sys$output "Creating libzshr.exe" +$ call anal_obj_axp modules.opt _link.opt +$ if s_case +$ then +$ open/append optf modules.opt +$ write optf "case_sensitive=YES" +$ close optf +$ endif +$ LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,_link.opt/opt +$ endif +$ write sys$output "Zlib build completed" +$ exit +$CC_ERR: +$ write sys$output "C compiler required to build ''name'" +$ goto err_exit +$ERR_EXIT: +$ set message/facil/ident/sever/text +$ close/nolog optf +$ close/nolog topt +$ close/nolog conf_hin +$ close/nolog aconf_in +$ close/nolog aconf +$ close/nolog out +$ close/nolog min +$ close/nolog mod +$ close/nolog h_in +$ write sys$output "Exiting..." +$ exit 2 +$! +$! +$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES +$ V = 'F$Verify(0) +$! P1 = What we are trying to make +$! P2 = Command to make it +$! P3 - P8 What it depends on +$ +$ If F$Search(P1) .Eqs. "" Then Goto Makeit +$ Time = F$CvTime(F$File(P1,"RDT")) +$arg=3 +$Loop: +$ Argument = P'arg +$ If Argument .Eqs. "" Then Goto Exit +$ El=0 +$Loop2: +$ File = F$Element(El," ",Argument) +$ If File .Eqs. " " Then Goto Endl +$ AFile = "" +$Loop3: +$ OFile = AFile +$ AFile = F$Search(File) +$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl +$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit +$ Goto Loop3 +$NextEL: +$ El = El + 1 +$ Goto Loop2 +$EndL: +$ arg=arg+1 +$ If arg .Le. 8 Then Goto Loop +$ Goto Exit +$ +$Makeit: +$ VV=F$VERIFY(0) +$ write sys$output P2 +$ 'P2 +$ VV='F$Verify(VV) +$Exit: +$ If V Then Set Verify +$ENDSUBROUTINE +$!------------------------------------------------------------------------------ +$! +$! Check command line options and set symbols accordingly +$! +$!------------------------------------------------------------------------------ +$! Version history +$! 0.01 20041206 First version to receive a number +$! 0.02 20060126 Add new "HELP" target +$ CHECK_OPTS: +$ i = 1 +$ OPT_LOOP: +$ if i .lt. 9 +$ then +$ cparm = f$edit(p'i',"upcase") +$! +$! Check if parameter actually contains something +$! +$ if f$edit(cparm,"trim") .nes. "" +$ then +$ if cparm .eqs. "DEBUG" +$ then +$ ccopt = ccopt + "/noopt/deb" +$ lopts = lopts + "/deb" +$ endif +$ if f$locate("CCOPT=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ ccopt = ccopt + f$extract(start,len,cparm) +$ if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) - + then s_case = true +$ endif +$ if cparm .eqs. "LINK" then linkonly = true +$ if f$locate("LOPTS=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ lopts = lopts + f$extract(start,len,cparm) +$ endif +$ if f$locate("CC=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ cc_com = f$extract(start,len,cparm) + if (cc_com .nes. "DECC") .and. - + (cc_com .nes. "VAXC") .and. - + (cc_com .nes. "GNUC") +$ then +$ write sys$output "Unsupported compiler choice ''cc_com' ignored" +$ write sys$output "Use DECC, VAXC, or GNUC instead" +$ else +$ if cc_com .eqs. "DECC" then its_decc = true +$ if cc_com .eqs. "VAXC" then its_vaxc = true +$ if cc_com .eqs. "GNUC" then its_gnuc = true +$ endif +$ endif +$ if f$locate("MAKE=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ mmks = f$extract(start,len,cparm) +$ if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS") +$ then +$ make = mmks +$ else +$ write sys$output "Unsupported make choice ''mmks' ignored" +$ write sys$output "Use MMK or MMS instead" +$ endif +$ endif +$ if cparm .eqs. "HELP" then gosub bhelp +$ endif +$ i = i + 1 +$ goto opt_loop +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Look for the compiler used +$! +$! Version history +$! 0.01 20040223 First version to receive a number +$! 0.02 20040229 Save/set value of decc$no_rooted_search_lists +$! 0.03 20060202 Extend handling of GNU C +$! 0.04 20090402 Compaq -> hp +$CHECK_COMPILER: +$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) +$ then +$ its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "") +$ its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "") +$ its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "") +$ endif +$! +$! Exit if no compiler available +$! +$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) +$ then goto CC_ERR +$ else +$ if its_decc +$ then +$ write sys$output "CC compiler check ... hp C" +$ if f$trnlnm("decc$no_rooted_search_lists") .nes. "" +$ then +$ dnrsl = f$trnlnm("decc$no_rooted_search_lists") +$ endif +$ define/nolog decc$no_rooted_search_lists 1 +$ else +$ if its_vaxc then write sys$output "CC compiler check ... VAX C" +$ if its_gnuc +$ then +$ write sys$output "CC compiler check ... GNU C" +$ if f$trnlnm(topt) then write topt "gnu_cc:[000000]gcclib.olb/lib" +$ if f$trnlnm(optf) then write optf "gnu_cc:[000000]gcclib.olb/lib" +$ cc = "gcc" +$ endif +$ if f$trnlnm(topt) then write topt "sys$share:vaxcrtl.exe/share" +$ if f$trnlnm(optf) then write optf "sys$share:vaxcrtl.exe/share" +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! If MMS/MMK are available dump out the descrip.mms if required +$! +$CREA_MMS: +$ write sys$output "Creating descrip.mms..." +$ create descrip.mms +$ open/append out descrip.mms +$ copy sys$input: out +$ deck +# descrip.mms: MMS description file for building zlib on VMS +# written by Martin P.J. Zinser +# <zinser@zinser.no-ip.info or zinser@sysdev.deutsche-boerse.com> + +OBJS = adler32.obj, compress.obj, crc32.obj, gzclose.obj, gzlib.obj\ + gzread.obj, gzwrite.obj, uncompr.obj, infback.obj\ + deflate.obj, trees.obj, zutil.obj, inflate.obj, \ + inftrees.obj, inffast.obj + +$ eod +$ write out "CFLAGS=", ccopt +$ write out "LOPTS=", lopts +$ copy sys$input: out +$ deck + +all : example.exe minigzip.exe libz.olb + @ write sys$output " Example applications available" + +libz.olb : libz.olb($(OBJS)) + @ write sys$output " libz available" + +example.exe : example.obj libz.olb + link $(LOPTS) example,libz.olb/lib + +minigzip.exe : minigzip.obj libz.olb + link $(LOPTS) minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib + +clean : + delete *.obj;*,libz.olb;*,*.opt;*,*.exe;* + + +# Other dependencies. +adler32.obj : adler32.c zutil.h zlib.h zconf.h +compress.obj : compress.c zlib.h zconf.h +crc32.obj : crc32.c zutil.h zlib.h zconf.h +deflate.obj : deflate.c deflate.h zutil.h zlib.h zconf.h +example.obj : example.c zlib.h zconf.h +gzclose.obj : gzclose.c zutil.h zlib.h zconf.h +gzlib.obj : gzlib.c zutil.h zlib.h zconf.h +gzread.obj : gzread.c zutil.h zlib.h zconf.h +gzwrite.obj : gzwrite.c zutil.h zlib.h zconf.h +inffast.obj : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h +inflate.obj : inflate.c zutil.h zlib.h zconf.h +inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h +minigzip.obj : minigzip.c zlib.h zconf.h +trees.obj : trees.c deflate.h zutil.h zlib.h zconf.h +uncompr.obj : uncompr.c zlib.h zconf.h +zutil.obj : zutil.c zutil.h zlib.h zconf.h +infback.obj : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h +$ eod +$ close out +$ return +$!------------------------------------------------------------------------------ +$! +$! Read list of core library sources from makefile.in and create options +$! needed to build shareable image +$! +$CREA_OLIST: +$ open/read min makefile.in +$ open/write mod modules.opt +$ src_check = "OBJC =" +$MRLOOP: +$ read/end=mrdone min rec +$ if (f$extract(0,6,rec) .nes. src_check) then goto mrloop +$ rec = rec - src_check +$ gosub extra_filnam +$ if (f$element(1,"\",rec) .eqs. "\") then goto mrdone +$MRSLOOP: +$ read/end=mrdone min rec +$ gosub extra_filnam +$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop +$MRDONE: +$ close min +$ close mod +$ return +$!------------------------------------------------------------------------------ +$! +$! Take record extracted in crea_olist and split it into single filenames +$! +$EXTRA_FILNAM: +$ myrec = f$edit(rec - "\", "trim,compress") +$ i = 0 +$FELOOP: +$ srcfil = f$element(i," ", myrec) +$ if (srcfil .nes. " ") +$ then +$ write mod f$parse(srcfil,,,"NAME"), ".obj" +$ i = i + 1 +$ goto feloop +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Find current Zlib version number +$! +$FIND_VERSION: +$ open/read h_in 'v_file' +$hloop: +$ read/end=hdone h_in rec +$ rec = f$edit(rec,"TRIM") +$ if (f$extract(0,1,rec) .nes. "#") then goto hloop +$ rec = f$edit(rec - "#", "TRIM") +$ if f$element(0," ",rec) .nes. "define" then goto hloop +$ if f$element(1," ",rec) .eqs. v_string +$ then +$ version = 'f$element(2," ",rec)' +$ goto hdone +$ endif +$ goto hloop +$hdone: +$ close h_in +$ return +$!------------------------------------------------------------------------------ +$! +$CHECK_CONFIG: +$! +$ in_ldef = f$locate(cdef,libdefs) +$ if (in_ldef .lt. f$length(libdefs)) +$ then +$ write aconf "#define ''cdef' 1" +$ libdefs = f$extract(0,in_ldef,libdefs) + - + f$extract(in_ldef + f$length(cdef) + 1, - + f$length(libdefs) - in_ldef - f$length(cdef) - 1, - + libdefs) +$ else +$ if (f$type('cdef') .eqs. "INTEGER") +$ then +$ write aconf "#define ''cdef' ", 'cdef' +$ else +$ if (f$type('cdef') .eqs. "STRING") +$ then +$ write aconf "#define ''cdef' ", """", '''cdef'', """" +$ else +$ gosub check_cc_def +$ endif +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Check if this is a define relating to the properties of the C/C++ +$! compiler +$! +$ CHECK_CC_DEF: +$ if (cdef .eqs. "_LARGEFILE64_SOURCE") +$ then +$ copy sys$input: 'tc' +$ deck +#include "tconfig" +#define _LARGEFILE +#include <stdio.h> + +int main(){ +FILE *fp; + fp = fopen("temp.txt","r"); + fseeko(fp,1,SEEK_SET); + fclose(fp); +} + +$ eod +$ test_inv = false +$ comm_h = false +$ gosub cc_prop_check +$ return +$ endif +$ write aconf "/* ", line, " */" +$ return +$!------------------------------------------------------------------------------ +$! +$! Check for properties of C/C++ compiler +$! +$! Version history +$! 0.01 20031020 First version to receive a number +$! 0.02 20031022 Added logic for defines with value +$! 0.03 20040309 Make sure local config file gets not deleted +$! 0.04 20041230 Also write include for configure run +$! 0.05 20050103 Add processing of "comment defines" +$CC_PROP_CHECK: +$ cc_prop = true +$ is_need = false +$ is_need = (f$extract(0,4,cdef) .eqs. "NEED") .or. (test_inv .eq. true) +$ if f$search(th) .eqs. "" then create 'th' +$ set message/nofac/noident/nosever/notext +$ on error then continue +$ cc 'tmpnam' +$ if .not. ($status) then cc_prop = false +$ on error then continue +$! The headers might lie about the capabilities of the RTL +$ link 'tmpnam',tmp.opt/opt +$ if .not. ($status) then cc_prop = false +$ set message/fac/ident/sever/text +$ on error then goto err_exit +$ delete/nolog 'tmpnam'.*;*/exclude='th' +$ if (cc_prop .and. .not. is_need) .or. - + (.not. cc_prop .and. is_need) +$ then +$ write sys$output "Checking for ''cdef'... yes" +$ if f$type('cdef_val'_yes) .nes. "" +$ then +$ if f$type('cdef_val'_yes) .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_yes) +$ if f$type('cdef_val'_yes) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_yes) +$ else +$ call write_config f$fao("#define !AS 1",cdef) +$ endif +$ if (cdef .eqs. "HAVE_FSEEKO") .or. (cdef .eqs. "_LARGE_FILES") .or. - + (cdef .eqs. "_LARGEFILE64_SOURCE") then - + call write_config f$string("#define _LARGEFILE 1") +$ else +$ write sys$output "Checking for ''cdef'... no" +$ if (comm_h) +$ then + call write_config f$fao("/* !AS */",line) +$ else +$ if f$type('cdef_val'_no) .nes. "" +$ then +$ if f$type('cdef_val'_no) .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_no) +$ if f$type('cdef_val'_no) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_no) +$ else +$ call write_config f$fao("#undef !AS",cdef) +$ endif +$ endif +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Check for properties of C/C++ compiler with multiple result values +$! +$! Version history +$! 0.01 20040127 First version +$! 0.02 20050103 Reconcile changes from cc_prop up to version 0.05 +$CC_MPROP_CHECK: +$ cc_prop = true +$ i = 1 +$ idel = 1 +$ MT_LOOP: +$ if f$type(result_'i') .eqs. "STRING" +$ then +$ set message/nofac/noident/nosever/notext +$ on error then continue +$ cc 'tmpnam'_'i' +$ if .not. ($status) then cc_prop = false +$ on error then continue +$! The headers might lie about the capabilities of the RTL +$ link 'tmpnam'_'i',tmp.opt/opt +$ if .not. ($status) then cc_prop = false +$ set message/fac/ident/sever/text +$ on error then goto err_exit +$ delete/nolog 'tmpnam'_'i'.*;* +$ if (cc_prop) +$ then +$ write sys$output "Checking for ''cdef'... ", mdef_'i' +$ if f$type(mdef_'i') .eqs. "INTEGER" - + then call write_config f$fao("#define !AS !UL",cdef,mdef_'i') +$ if f$type('cdef_val'_yes) .eqs. "STRING" - + then call write_config f$fao("#define !AS !AS",cdef,mdef_'i') +$ goto msym_clean +$ else +$ i = i + 1 +$ goto mt_loop +$ endif +$ endif +$ write sys$output "Checking for ''cdef'... no" +$ call write_config f$fao("#undef !AS",cdef) +$ MSYM_CLEAN: +$ if (idel .le. msym_max) +$ then +$ delete/sym mdef_'idel' +$ idel = idel + 1 +$ goto msym_clean +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Analyze Object files for OpenVMS AXP to extract Procedure and Data +$! information to build a symbol vector for a shareable image +$! All the "brains" of this logic was suggested by Hartmut Becker +$! (Hartmut.Becker@compaq.com). All the bugs were introduced by me +$! (zinser@zinser.no-ip.info), so if you do have problem reports please do not +$! bother Hartmut/HP, but get in touch with me +$! +$! Version history +$! 0.01 20040406 Skip over shareable images in option file +$! 0.02 20041109 Fix option file for shareable images with case_sensitive=YES +$! 0.03 20050107 Skip over Identification labels in option file +$! 0.04 20060117 Add uppercase alias to code compiled with /name=as_is +$! +$ ANAL_OBJ_AXP: Subroutine +$ V = 'F$Verify(0) +$ SAY := "WRITE_ SYS$OUTPUT" +$ +$ IF F$SEARCH("''P1'") .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP-E-NOSUCHFILE: Error, inputfile ''p1' not available" +$ goto exit_aa +$ ENDIF +$ IF "''P2'" .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP: Error, no output file provided" +$ goto exit_aa +$ ENDIF +$ +$ open/read in 'p1 +$ create a.tmp +$ open/append atmp a.tmp +$ loop: +$ read/end=end_loop in line +$ if f$locate("/SHARE",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write sys$output "ANAL_SKP_SHR-i-skipshare, ''line'" +$ goto loop +$ endif +$ if f$locate("IDENTIFICATION=",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write sys$output "ANAL_OBJ_AXP-i-ident: Identification ", - + f$element(1,"=",line) +$ goto loop +$ endif +$ f= f$search(line) +$ if f .eqs. "" +$ then +$ write sys$output "ANAL_OBJ_AXP-w-nosuchfile, ''line'" +$ goto loop +$ endif +$ define/user sys$output nl: +$ define/user sys$error nl: +$ anal/obj/gsd 'f /out=x.tmp +$ open/read xtmp x.tmp +$ XLOOP: +$ read/end=end_xloop xtmp xline +$ xline = f$edit(xline,"compress") +$ write atmp xline +$ goto xloop +$ END_XLOOP: +$ close xtmp +$ goto loop +$ end_loop: +$ close in +$ close atmp +$ if f$search("a.tmp") .eqs. "" - + then $ exit +$ ! all global definitions +$ search a.tmp "symbol:","EGSY$V_DEF 1","EGSY$V_NORM 1"/out=b.tmp +$ ! all procedures +$ search b.tmp "EGSY$V_NORM 1"/wind=(0,1) /out=c.tmp +$ search c.tmp "symbol:"/out=d.tmp +$ define/user sys$output nl: +$ edito/edt/command=sys$input d.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=PROCEDURE)/whole +exit +$ ! all data +$ search b.tmp "EGSY$V_DEF 1"/wind=(0,1) /out=e.tmp +$ search e.tmp "symbol:"/out=f.tmp +$ define/user sys$output nl: +$ edito/edt/command=sys$input f.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=DATA)/whole +exit +$ sort/nodupl d.tmp,f.tmp g.tmp +$ open/read raw_vector g.tmp +$ open/write case_vector 'p2' +$ RAWLOOP: +$ read/end=end_rawloop raw_vector raw_element +$ write case_vector raw_element +$ if f$locate("=PROCEDURE)",raw_element) .lt. f$length(raw_element) +$ then +$ name = f$element(1,"=",raw_element) - "(" +$ if f$edit(name,"UPCASE") .nes. name then - + write case_vector f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)", - + f$edit(name,"UPCASE"), name) +$ endif +$ if f$locate("=DATA)",raw_element) .lt. f$length(raw_element) +$ then +$ name = f$element(1,"=",raw_element) - "(" +$ if f$edit(name,"UPCASE") .nes. name then - + write case_vector f$fao(" symbol_vector=(!AS/!AS=DATA)", - + f$edit(name,"UPCASE"), name) +$ endif +$ goto rawloop +$ END_RAWLOOP: +$ close raw_vector +$ close case_vector +$ delete a.tmp;*,b.tmp;*,c.tmp;*,d.tmp;*,e.tmp;*,f.tmp;*,g.tmp;* +$ if f$search("x.tmp") .nes. "" - + then $ delete x.tmp;* +$! +$ EXIT_AA: +$ if V then set verify +$ endsubroutine +$!------------------------------------------------------------------------------ +$! +$! Write configuration to both permanent and temporary config file +$! +$! Version history +$! 0.01 20031029 First version to receive a number +$! +$WRITE_CONFIG: SUBROUTINE +$ write aconf 'p1' +$ open/append confh 'th' +$ write confh 'p1' +$ close confh +$ENDSUBROUTINE +$!------------------------------------------------------------------------------ diff --git a/3party/zlib/minigzip.c b/3party/zlib/minigzip.c new file mode 100644 index 0000000000..9825ccc3a7 --- /dev/null +++ b/3party/zlib/minigzip.c @@ -0,0 +1,440 @@ +/* minigzip.c -- simulate gzip using the zlib compression library + * Copyright (C) 1995-2006, 2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * minigzip is a minimal implementation of the gzip utility. This is + * only an example of using zlib and isn't meant to replace the + * full-featured gzip. No attempt is made to deal with file systems + * limiting names to 14 or 8+3 characters, etc... Error checking is + * very limited. So use minigzip only for testing; use gzip for the + * real thing. On MSDOS, use only on file names without extension + * or in pipe mode. + */ + +/* @(#) $Id$ */ + +#include "zlib.h" +#include <stdio.h> + +#ifdef STDC +# include <string.h> +# include <stdlib.h> +#endif + +#ifdef USE_MMAP +# include <sys/types.h> +# include <sys/mman.h> +# include <sys/stat.h> +#endif + +#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) +# include <fcntl.h> +# include <io.h> +# ifdef UNDER_CE +# include <stdlib.h> +# endif +# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) +#else +# define SET_BINARY_MODE(file) +#endif + +#ifdef VMS +# define unlink delete +# define GZ_SUFFIX "-gz" +#endif +#ifdef RISCOS +# define unlink remove +# define GZ_SUFFIX "-gz" +# define fileno(file) file->__file +#endif +#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include <unix.h> /* for fileno */ +#endif + +#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE) +#ifndef WIN32 /* unlink already in stdio.h for WIN32 */ + extern int unlink OF((const char *)); +#endif +#endif + +#if defined(UNDER_CE) +# include <windows.h> +# define perror(s) pwinerror(s) + +/* Map the Windows error number in ERROR to a locale-dependent error + message string and return a pointer to it. Typically, the values + for ERROR come from GetLastError. + + The string pointed to shall not be modified by the application, + but may be overwritten by a subsequent call to strwinerror + + The strwinerror function does not change the current setting + of GetLastError. */ + +static char *strwinerror (error) + DWORD error; +{ + static char buf[1024]; + + wchar_t *msgbuf; + DWORD lasterr = GetLastError(); + DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_ALLOCATE_BUFFER, + NULL, + error, + 0, /* Default language */ + (LPVOID)&msgbuf, + 0, + NULL); + if (chars != 0) { + /* If there is an \r\n appended, zap it. */ + if (chars >= 2 + && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { + chars -= 2; + msgbuf[chars] = 0; + } + + if (chars > sizeof (buf) - 1) { + chars = sizeof (buf) - 1; + msgbuf[chars] = 0; + } + + wcstombs(buf, msgbuf, chars + 1); + LocalFree(msgbuf); + } + else { + sprintf(buf, "unknown win32 error (%ld)", error); + } + + SetLastError(lasterr); + return buf; +} + +static void pwinerror (s) + const char *s; +{ + if (s && *s) + fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ())); + else + fprintf(stderr, "%s\n", strwinerror(GetLastError ())); +} + +#endif /* UNDER_CE */ + +#ifndef GZ_SUFFIX +# define GZ_SUFFIX ".gz" +#endif +#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1) + +#define BUFLEN 16384 +#define MAX_NAME_LEN 1024 + +#ifdef MAXSEG_64K +# define local static + /* Needed for systems with limitation on stack size. */ +#else +# define local +#endif + +char *prog; + +void error OF((const char *msg)); +void gz_compress OF((FILE *in, gzFile out)); +#ifdef USE_MMAP +int gz_compress_mmap OF((FILE *in, gzFile out)); +#endif +void gz_uncompress OF((gzFile in, FILE *out)); +void file_compress OF((char *file, char *mode)); +void file_uncompress OF((char *file)); +int main OF((int argc, char *argv[])); + +/* =========================================================================== + * Display error message and exit + */ +void error(msg) + const char *msg; +{ + fprintf(stderr, "%s: %s\n", prog, msg); + exit(1); +} + +/* =========================================================================== + * Compress input to output then close both files. + */ + +void gz_compress(in, out) + FILE *in; + gzFile out; +{ + local char buf[BUFLEN]; + int len; + int err; + +#ifdef USE_MMAP + /* Try first compressing with mmap. If mmap fails (minigzip used in a + * pipe), use the normal fread loop. + */ + if (gz_compress_mmap(in, out) == Z_OK) return; +#endif + for (;;) { + len = (int)fread(buf, 1, sizeof(buf), in); + if (ferror(in)) { + perror("fread"); + exit(1); + } + if (len == 0) break; + + if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err)); + } + fclose(in); + if (gzclose(out) != Z_OK) error("failed gzclose"); +} + +#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */ + +/* Try compressing the input file at once using mmap. Return Z_OK if + * if success, Z_ERRNO otherwise. + */ +int gz_compress_mmap(in, out) + FILE *in; + gzFile out; +{ + int len; + int err; + int ifd = fileno(in); + caddr_t buf; /* mmap'ed buffer for the entire input file */ + off_t buf_len; /* length of the input file */ + struct stat sb; + + /* Determine the size of the file, needed for mmap: */ + if (fstat(ifd, &sb) < 0) return Z_ERRNO; + buf_len = sb.st_size; + if (buf_len <= 0) return Z_ERRNO; + + /* Now do the actual mmap: */ + buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0); + if (buf == (caddr_t)(-1)) return Z_ERRNO; + + /* Compress the whole file at once: */ + len = gzwrite(out, (char *)buf, (unsigned)buf_len); + + if (len != (int)buf_len) error(gzerror(out, &err)); + + munmap(buf, buf_len); + fclose(in); + if (gzclose(out) != Z_OK) error("failed gzclose"); + return Z_OK; +} +#endif /* USE_MMAP */ + +/* =========================================================================== + * Uncompress input to output then close both files. + */ +void gz_uncompress(in, out) + gzFile in; + FILE *out; +{ + local char buf[BUFLEN]; + int len; + int err; + + for (;;) { + len = gzread(in, buf, sizeof(buf)); + if (len < 0) error (gzerror(in, &err)); + if (len == 0) break; + + if ((int)fwrite(buf, 1, (unsigned)len, out) != len) { + error("failed fwrite"); + } + } + if (fclose(out)) error("failed fclose"); + + if (gzclose(in) != Z_OK) error("failed gzclose"); +} + + +/* =========================================================================== + * Compress the given file: create a corresponding .gz file and remove the + * original. + */ +void file_compress(file, mode) + char *file; + char *mode; +{ + local char outfile[MAX_NAME_LEN]; + FILE *in; + gzFile out; + + if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) { + fprintf(stderr, "%s: filename too long\n", prog); + exit(1); + } + + strcpy(outfile, file); + strcat(outfile, GZ_SUFFIX); + + in = fopen(file, "rb"); + if (in == NULL) { + perror(file); + exit(1); + } + out = gzopen(outfile, mode); + if (out == NULL) { + fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile); + exit(1); + } + gz_compress(in, out); + + unlink(file); +} + + +/* =========================================================================== + * Uncompress the given file and remove the original. + */ +void file_uncompress(file) + char *file; +{ + local char buf[MAX_NAME_LEN]; + char *infile, *outfile; + FILE *out; + gzFile in; + size_t len = strlen(file); + + if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) { + fprintf(stderr, "%s: filename too long\n", prog); + exit(1); + } + + strcpy(buf, file); + + if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) { + infile = file; + outfile = buf; + outfile[len-3] = '\0'; + } else { + outfile = file; + infile = buf; + strcat(infile, GZ_SUFFIX); + } + in = gzopen(infile, "rb"); + if (in == NULL) { + fprintf(stderr, "%s: can't gzopen %s\n", prog, infile); + exit(1); + } + out = fopen(outfile, "wb"); + if (out == NULL) { + perror(file); + exit(1); + } + + gz_uncompress(in, out); + + unlink(infile); +} + + +/* =========================================================================== + * Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...] + * -c : write to standard output + * -d : decompress + * -f : compress with Z_FILTERED + * -h : compress with Z_HUFFMAN_ONLY + * -r : compress with Z_RLE + * -1 to -9 : compression level + */ + +int main(argc, argv) + int argc; + char *argv[]; +{ + int copyout = 0; + int uncompr = 0; + gzFile file; + char *bname, outmode[20]; + + strcpy(outmode, "wb6 "); + + prog = argv[0]; + bname = strrchr(argv[0], '/'); + if (bname) + bname++; + else + bname = argv[0]; + argc--, argv++; + + if (!strcmp(bname, "gunzip")) + uncompr = 1; + else if (!strcmp(bname, "zcat")) + copyout = uncompr = 1; + + while (argc > 0) { + if (strcmp(*argv, "-c") == 0) + copyout = 1; + else if (strcmp(*argv, "-d") == 0) + uncompr = 1; + else if (strcmp(*argv, "-f") == 0) + outmode[3] = 'f'; + else if (strcmp(*argv, "-h") == 0) + outmode[3] = 'h'; + else if (strcmp(*argv, "-r") == 0) + outmode[3] = 'R'; + else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' && + (*argv)[2] == 0) + outmode[2] = (*argv)[1]; + else + break; + argc--, argv++; + } + if (outmode[3] == ' ') + outmode[3] = 0; + if (argc == 0) { + SET_BINARY_MODE(stdin); + SET_BINARY_MODE(stdout); + if (uncompr) { + file = gzdopen(fileno(stdin), "rb"); + if (file == NULL) error("can't gzdopen stdin"); + gz_uncompress(file, stdout); + } else { + file = gzdopen(fileno(stdout), outmode); + if (file == NULL) error("can't gzdopen stdout"); + gz_compress(stdin, file); + } + } else { + if (copyout) { + SET_BINARY_MODE(stdout); + } + do { + if (uncompr) { + if (copyout) { + file = gzopen(*argv, "rb"); + if (file == NULL) + fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv); + else + gz_uncompress(file, stdout); + } else { + file_uncompress(*argv); + } + } else { + if (copyout) { + FILE * in = fopen(*argv, "rb"); + + if (in == NULL) { + perror(*argv); + } else { + file = gzdopen(fileno(stdout), outmode); + if (file == NULL) error("can't gzdopen stdout"); + + gz_compress(in, file); + } + + } else { + file_compress(*argv, outmode); + } + } + } while (argv++, --argc); + } + return 0; +} diff --git a/3party/zlib/msdos/Makefile.bor b/3party/zlib/msdos/Makefile.bor new file mode 100644 index 0000000000..0c1b99c9b9 --- /dev/null +++ b/3party/zlib/msdos/Makefile.bor @@ -0,0 +1,115 @@ +# Makefile for zlib +# Borland C++ +# Last updated: 15-Mar-2003 + +# To use, do "make -fmakefile.bor" +# To compile in small model, set below: MODEL=s + +# WARNING: the small model is supported but only for small values of +# MAX_WBITS and MAX_MEM_LEVEL. For example: +# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3 +# If you wish to reduce the memory requirements (default 256K for big +# objects plus a few K), you can add to the LOC macro below: +# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 +# See zconf.h for details about the memory requirements. + +# ------------ Turbo C++, Borland C++ ------------ + +# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7) +# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added +# to the declaration of LOC here: +LOC = $(LOCAL_ZLIB) + +# type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc. +CPU_TYP = 0 + +# memory model: one of s, m, c, l (small, medium, compact, large) +MODEL=l + +# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version +CC=bcc +LD=bcc +AR=tlib + +# compiler flags +# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0 +CFLAGS=-O2 -Z -m$(MODEL) $(LOC) + +LDFLAGS=-m$(MODEL) -f- + + +# variables +ZLIB_LIB = zlib_$(MODEL).lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj +OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +clean: + -del *.obj + -del *.lib + -del *.exe + -del zlib_*.bak + -del foo.gz diff --git a/3party/zlib/msdos/Makefile.dj2 b/3party/zlib/msdos/Makefile.dj2 new file mode 100644 index 0000000000..29b03954d7 --- /dev/null +++ b/3party/zlib/msdos/Makefile.dj2 @@ -0,0 +1,104 @@ +# Makefile for zlib. Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96. +# Copyright (C) 1995-1998 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile, or to compile and test, type: +# +# make -fmakefile.dj2; make test -fmakefile.dj2 +# +# To install libz.a, zconf.h and zlib.h in the djgpp directories, type: +# +# make install -fmakefile.dj2 +# +# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as +# in the sample below if the pattern of the DJGPP distribution is to +# be followed. Remember that, while <sp>'es around <=> are ignored in +# makefiles, they are *not* in batch files or in djgpp.env. +# - - - - - +# [make] +# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include +# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib +# BUTT=-m486 +# - - - - - +# Alternately, these variables may be defined below, overriding the values +# in djgpp.env, as +# INCLUDE_PATH=c:\usr\include +# LIBRARY_PATH=c:\usr\lib + +CC=gcc + +#CFLAGS=-MMD -O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-MMD -g -DDEBUG +CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ + -Wstrict-prototypes -Wmissing-prototypes + +# If cp.exe is available, replace "copy /Y" with "cp -fp" . +CP=copy /Y +# If gnu install.exe is available, replace $(CP) with ginstall. +INSTALL=$(CP) +# The default value of RM is "rm -f." If "rm.exe" is found, comment out: +RM=del +LDLIBS=-L. -lz +LD=$(CC) -s -o +LDSHARED=$(CC) + +INCL=zlib.h zconf.h +LIBS=libz.a + +AR=ar rcs + +prefix=/usr/local +exec_prefix = $(prefix) + +OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \ + uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o + +OBJA = +# to use the asm code: make OBJA=match.o + +TEST_OBJS = example.o minigzip.o + +all: example.exe minigzip.exe + +check: test +test: all + ./example + echo hello world | .\minigzip | .\minigzip -d + +%.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + +libz.a: $(OBJS) $(OBJA) + $(AR) $@ $(OBJS) $(OBJA) + +%.exe : %.o $(LIBS) + $(LD) $@ $< $(LDLIBS) + +# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env . + +.PHONY : uninstall clean + +install: $(INCL) $(LIBS) + -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH) + -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH) + $(INSTALL) zlib.h $(INCLUDE_PATH) + $(INSTALL) zconf.h $(INCLUDE_PATH) + $(INSTALL) libz.a $(LIBRARY_PATH) + +uninstall: + $(RM) $(INCLUDE_PATH)\zlib.h + $(RM) $(INCLUDE_PATH)\zconf.h + $(RM) $(LIBRARY_PATH)\libz.a + +clean: + $(RM) *.d + $(RM) *.o + $(RM) *.exe + $(RM) libz.a + $(RM) foo.gz + +DEPS := $(wildcard *.d) +ifneq ($(DEPS),) +include $(DEPS) +endif diff --git a/3party/zlib/msdos/Makefile.emx b/3party/zlib/msdos/Makefile.emx new file mode 100644 index 0000000000..9c1b57a585 --- /dev/null +++ b/3party/zlib/msdos/Makefile.emx @@ -0,0 +1,69 @@ +# Makefile for zlib. Modified for emx 0.9c by Chr. Spieler, 6/17/98. +# Copyright (C) 1995-1998 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile, or to compile and test, type: +# +# make -fmakefile.emx; make test -fmakefile.emx +# + +CC=gcc + +#CFLAGS=-MMD -O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-MMD -g -DDEBUG +CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ + -Wstrict-prototypes -Wmissing-prototypes + +# If cp.exe is available, replace "copy /Y" with "cp -fp" . +CP=copy /Y +# If gnu install.exe is available, replace $(CP) with ginstall. +INSTALL=$(CP) +# The default value of RM is "rm -f." If "rm.exe" is found, comment out: +RM=del +LDLIBS=-L. -lzlib +LD=$(CC) -s -o +LDSHARED=$(CC) + +INCL=zlib.h zconf.h +LIBS=zlib.a + +AR=ar rcs + +prefix=/usr/local +exec_prefix = $(prefix) + +OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \ + uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o + +TEST_OBJS = example.o minigzip.o + +all: example.exe minigzip.exe + +test: all + ./example + echo hello world | .\minigzip | .\minigzip -d + +%.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + +zlib.a: $(OBJS) + $(AR) $@ $(OBJS) + +%.exe : %.o $(LIBS) + $(LD) $@ $< $(LDLIBS) + + +.PHONY : clean + +clean: + $(RM) *.d + $(RM) *.o + $(RM) *.exe + $(RM) zlib.a + $(RM) foo.gz + +DEPS := $(wildcard *.d) +ifneq ($(DEPS),) +include $(DEPS) +endif diff --git a/3party/zlib/msdos/Makefile.msc b/3party/zlib/msdos/Makefile.msc new file mode 100644 index 0000000000..cd2816fbf3 --- /dev/null +++ b/3party/zlib/msdos/Makefile.msc @@ -0,0 +1,112 @@ +# Makefile for zlib +# Microsoft C 5.1 or later +# Last updated: 19-Mar-2003 + +# To use, do "make makefile.msc" +# To compile in small model, set below: MODEL=S + +# If you wish to reduce the memory requirements (default 256K for big +# objects plus a few K), you can add to the LOC macro below: +# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 +# See zconf.h for details about the memory requirements. + +# ------------- Microsoft C 5.1 and later ------------- + +# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7) +# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added +# to the declaration of LOC here: +LOC = $(LOCAL_ZLIB) + +# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc. +CPU_TYP = 0 + +# Memory model: one of S, M, C, L (small, medium, compact, large) +MODEL=L + +CC=cl +CFLAGS=-nologo -A$(MODEL) -G$(CPU_TYP) -W3 -Oait -Gs $(LOC) +#-Ox generates bad code with MSC 5.1 +LIB_CFLAGS=-Zl $(CFLAGS) + +LD=link +LDFLAGS=/noi/e/st:0x1500/noe/farcall/packcode +# "/farcall/packcode" are only useful for `large code' memory models +# but should be a "no-op" for small code models. + + +# variables +ZLIB_LIB = zlib_$(MODEL).lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(LIB_CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + $(CC) -c $(CFLAGS) $*.c + +minigzip.obj: minigzip.c zlib.h zconf.h + $(CC) -c $(CFLAGS) $*.c + + +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + if exist $(ZLIB_LIB) del $(ZLIB_LIB) + lib $(ZLIB_LIB) $(OBJ1); + lib $(ZLIB_LIB) $(OBJ2); + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj,,,$(ZLIB_LIB); + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj,,,$(ZLIB_LIB); + +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +clean: + -del *.obj + -del *.lib + -del *.exe + -del *.map + -del zlib_*.bak + -del foo.gz diff --git a/3party/zlib/msdos/Makefile.tc b/3party/zlib/msdos/Makefile.tc new file mode 100644 index 0000000000..bcd0d1889c --- /dev/null +++ b/3party/zlib/msdos/Makefile.tc @@ -0,0 +1,100 @@ +# Makefile for zlib +# Turbo C 2.01, Turbo C++ 1.01 +# Last updated: 15-Mar-2003 + +# To use, do "make -fmakefile.tc" +# To compile in small model, set below: MODEL=s + +# WARNING: the small model is supported but only for small values of +# MAX_WBITS and MAX_MEM_LEVEL. For example: +# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 +# If you wish to reduce the memory requirements (default 256K for big +# objects plus a few K), you can add to CFLAGS below: +# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 +# See zconf.h for details about the memory requirements. + +# ------------ Turbo C 2.01, Turbo C++ 1.01 ------------ +MODEL=l +CC=tcc +LD=tcc +AR=tlib +# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 +CFLAGS=-O2 -G -Z -m$(MODEL) +LDFLAGS=-m$(MODEL) -f- + + +# variables +ZLIB_LIB = zlib_$(MODEL).lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj +OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $*.c + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +clean: + -del *.obj + -del *.lib + -del *.exe + -del zlib_*.bak + -del foo.gz diff --git a/3party/zlib/nintendods/README b/3party/zlib/nintendods/README new file mode 100644 index 0000000000..ba7a37dbe8 --- /dev/null +++ b/3party/zlib/nintendods/README @@ -0,0 +1,5 @@ +This Makefile requires devkitARM (http://www.devkitpro.org/category/devkitarm/) and works inside "contrib/nds". It is based on a devkitARM template. + +Eduardo Costa <eduardo.m.costa@gmail.com> +January 3, 2009 + diff --git a/3party/zlib/old/Makefile.riscos b/3party/zlib/old/Makefile.riscos new file mode 100644 index 0000000000..57e29d3fba --- /dev/null +++ b/3party/zlib/old/Makefile.riscos @@ -0,0 +1,151 @@ +# Project: zlib_1_03 +# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430 +# test works out-of-the-box, installs `somewhere' on demand + +# Toolflags: +CCflags = -c -depend !Depend -IC: -g -throwback -DRISCOS -fah +C++flags = -c -depend !Depend -IC: -throwback +Linkflags = -aif -c++ -o $@ +ObjAsmflags = -throwback -NoCache -depend !Depend +CMHGflags = +LibFileflags = -c -l -o $@ +Squeezeflags = -o $@ + +# change the line below to where _you_ want the library installed. +libdest = lib:zlib + +# Final targets: +@.lib: @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \ + @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \ + @.o.uncompr @.o.zutil + LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \ + @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \ + @.o.trees @.o.uncompr @.o.zutil +test: @.minigzip @.example @.lib + @copy @.lib @.libc A~C~DF~L~N~P~Q~RS~TV + @echo running tests: hang on. + @/@.minigzip -f -9 libc + @/@.minigzip -d libc-gz + @/@.minigzip -f -1 libc + @/@.minigzip -d libc-gz + @/@.minigzip -h -9 libc + @/@.minigzip -d libc-gz + @/@.minigzip -h -1 libc + @/@.minigzip -d libc-gz + @/@.minigzip -9 libc + @/@.minigzip -d libc-gz + @/@.minigzip -1 libc + @/@.minigzip -d libc-gz + @diff @.lib @.libc + @echo that should have reported '@.lib and @.libc identical' if you have diff. + @/@.example @.fred @.fred + @echo that will have given lots of hello!'s. + +@.minigzip: @.o.minigzip @.lib C:o.Stubs + Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs +@.example: @.o.example @.lib C:o.Stubs + Link $(Linkflags) @.o.example @.lib C:o.Stubs + +install: @.lib + cdir $(libdest) + cdir $(libdest).h + @copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV + @copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV + @copy @.lib $(libdest).lib A~C~DF~L~N~P~Q~RS~TV + @echo okay, installed zlib in $(libdest) + +clean:; remove @.minigzip + remove @.example + remove @.libc + -wipe @.o.* F~r~cV + remove @.fred + +# User-editable dependencies: +.c.o: + cc $(ccflags) -o $@ $< + +# Static dependencies: + +# Dynamic dependencies: +o.example: c.example +o.example: h.zlib +o.example: h.zconf +o.minigzip: c.minigzip +o.minigzip: h.zlib +o.minigzip: h.zconf +o.adler32: c.adler32 +o.adler32: h.zlib +o.adler32: h.zconf +o.compress: c.compress +o.compress: h.zlib +o.compress: h.zconf +o.crc32: c.crc32 +o.crc32: h.zlib +o.crc32: h.zconf +o.deflate: c.deflate +o.deflate: h.deflate +o.deflate: h.zutil +o.deflate: h.zlib +o.deflate: h.zconf +o.gzio: c.gzio +o.gzio: h.zutil +o.gzio: h.zlib +o.gzio: h.zconf +o.infblock: c.infblock +o.infblock: h.zutil +o.infblock: h.zlib +o.infblock: h.zconf +o.infblock: h.infblock +o.infblock: h.inftrees +o.infblock: h.infcodes +o.infblock: h.infutil +o.infcodes: c.infcodes +o.infcodes: h.zutil +o.infcodes: h.zlib +o.infcodes: h.zconf +o.infcodes: h.inftrees +o.infcodes: h.infblock +o.infcodes: h.infcodes +o.infcodes: h.infutil +o.infcodes: h.inffast +o.inffast: c.inffast +o.inffast: h.zutil +o.inffast: h.zlib +o.inffast: h.zconf +o.inffast: h.inftrees +o.inffast: h.infblock +o.inffast: h.infcodes +o.inffast: h.infutil +o.inffast: h.inffast +o.inflate: c.inflate +o.inflate: h.zutil +o.inflate: h.zlib +o.inflate: h.zconf +o.inflate: h.infblock +o.inftrees: c.inftrees +o.inftrees: h.zutil +o.inftrees: h.zlib +o.inftrees: h.zconf +o.inftrees: h.inftrees +o.inftrees: h.inffixed +o.infutil: c.infutil +o.infutil: h.zutil +o.infutil: h.zlib +o.infutil: h.zconf +o.infutil: h.infblock +o.infutil: h.inftrees +o.infutil: h.infcodes +o.infutil: h.infutil +o.trees: c.trees +o.trees: h.deflate +o.trees: h.zutil +o.trees: h.zlib +o.trees: h.zconf +o.trees: h.trees +o.uncompr: c.uncompr +o.uncompr: h.zlib +o.uncompr: h.zconf +o.zutil: c.zutil +o.zutil: h.zutil +o.zutil: h.zlib +o.zutil: h.zconf diff --git a/3party/zlib/old/README b/3party/zlib/old/README new file mode 100644 index 0000000000..800bf07982 --- /dev/null +++ b/3party/zlib/old/README @@ -0,0 +1,3 @@ +This directory contains files that have not been updated for zlib 1.2.x + +(Volunteers are encouraged to help clean this up. Thanks.) diff --git a/3party/zlib/old/as400/bndsrc b/3party/zlib/old/as400/bndsrc new file mode 100644 index 0000000000..9cf94bb356 --- /dev/null +++ b/3party/zlib/old/as400/bndsrc @@ -0,0 +1,132 @@ +STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB') + +/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ +/* Version 1.1.3 entry points. */ +/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ + +/********************************************************************/ +/* *MODULE ADLER32 ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("adler32") + +/********************************************************************/ +/* *MODULE COMPRESS ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("compress") + EXPORT SYMBOL("compress2") + +/********************************************************************/ +/* *MODULE CRC32 ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("crc32") + EXPORT SYMBOL("get_crc_table") + +/********************************************************************/ +/* *MODULE DEFLATE ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("deflate") + EXPORT SYMBOL("deflateEnd") + EXPORT SYMBOL("deflateSetDictionary") + EXPORT SYMBOL("deflateCopy") + EXPORT SYMBOL("deflateReset") + EXPORT SYMBOL("deflateParams") + EXPORT SYMBOL("deflatePrime") + EXPORT SYMBOL("deflateInit_") + EXPORT SYMBOL("deflateInit2_") + +/********************************************************************/ +/* *MODULE GZIO ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("gzopen") + EXPORT SYMBOL("gzdopen") + EXPORT SYMBOL("gzsetparams") + EXPORT SYMBOL("gzread") + EXPORT SYMBOL("gzwrite") + EXPORT SYMBOL("gzprintf") + EXPORT SYMBOL("gzputs") + EXPORT SYMBOL("gzgets") + EXPORT SYMBOL("gzputc") + EXPORT SYMBOL("gzgetc") + EXPORT SYMBOL("gzflush") + EXPORT SYMBOL("gzseek") + EXPORT SYMBOL("gzrewind") + EXPORT SYMBOL("gztell") + EXPORT SYMBOL("gzeof") + EXPORT SYMBOL("gzclose") + EXPORT SYMBOL("gzerror") + +/********************************************************************/ +/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("inflate") + EXPORT SYMBOL("inflateEnd") + EXPORT SYMBOL("inflateSetDictionary") + EXPORT SYMBOL("inflateSync") + EXPORT SYMBOL("inflateReset") + EXPORT SYMBOL("inflateInit_") + EXPORT SYMBOL("inflateInit2_") + EXPORT SYMBOL("inflateSyncPoint") + +/********************************************************************/ +/* *MODULE UNCOMPR ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("uncompress") + +/********************************************************************/ +/* *MODULE ZUTIL ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("zlibVersion") + EXPORT SYMBOL("zError") + +/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ +/* Version 1.2.1 additional entry points. */ +/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ + +/********************************************************************/ +/* *MODULE COMPRESS ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("compressBound") + +/********************************************************************/ +/* *MODULE DEFLATE ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("deflateBound") + +/********************************************************************/ +/* *MODULE GZIO ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("gzungetc") + EXPORT SYMBOL("gzclearerr") + +/********************************************************************/ +/* *MODULE INFBACK ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("inflateBack") + EXPORT SYMBOL("inflateBackEnd") + EXPORT SYMBOL("inflateBackInit_") + +/********************************************************************/ +/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("inflateCopy") + +/********************************************************************/ +/* *MODULE ZUTIL ZLIB 01/02/01 00:15:09 */ +/********************************************************************/ + + EXPORT SYMBOL("zlibCompileFlags") + +ENDPGMEXP diff --git a/3party/zlib/old/as400/compile.clp b/3party/zlib/old/as400/compile.clp new file mode 100644 index 0000000000..8554951500 --- /dev/null +++ b/3party/zlib/old/as400/compile.clp @@ -0,0 +1,123 @@ +/******************************************************************************/ +/* */ +/* ZLIB */ +/* */ +/* Compile sources into modules and link them into a service program. */ +/* */ +/******************************************************************************/ + + PGM + +/* Configuration adjustable parameters. */ + + DCL VAR(&SRCLIB) TYPE(*CHAR) LEN(10) + + VALUE('ZLIB') /* Source library. */ + DCL VAR(&SRCFILE) TYPE(*CHAR) LEN(10) + + VALUE('SOURCES') /* Source member file. */ + DCL VAR(&CTLFILE) TYPE(*CHAR) LEN(10) + + VALUE('TOOLS') /* Control member file. */ + + DCL VAR(&MODLIB) TYPE(*CHAR) LEN(10) + + VALUE('ZLIB') /* Module library. */ + + DCL VAR(&SRVLIB) TYPE(*CHAR) LEN(10) + + VALUE('LGPL') /* Service program library. */ + + DCL VAR(&CFLAGS) TYPE(*CHAR) + + VALUE('OPTIMIZE(40)') /* Compile options. */ + + +/* Working storage. */ + + DCL VAR(&CMDLEN) TYPE(*DEC) LEN(15 5) VALUE(300) /* Command length. */ + DCL VAR(&CMD) TYPE(*CHAR) LEN(512) + + +/* Compile sources into modules. */ + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/ADLER32) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/COMPRESS) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/CRC32) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/DEFLATE) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/GZIO) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/INFBACK) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/INFFAST) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/INFLATE) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/INFTREES) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/TREES) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/UNCOMPR) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + + '/ZUTIL) SRCFILE(' *TCAT + + &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + + ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) + CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) + + +/* Link modules into a service program. */ + + CRTSRVPGM SRVPGM(&SRVLIB/ZLIB) + + MODULE(&MODLIB/ADLER32 &MODLIB/COMPRESS + + &MODLIB/CRC32 &MODLIB/DEFLATE + + &MODLIB/GZIO &MODLIB/INFBACK + + &MODLIB/INFFAST &MODLIB/INFLATE + + &MODLIB/INFTREES &MODLIB/TREES + + &MODLIB/UNCOMPR &MODLIB/ZUTIL) + + SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC) + + TEXT('ZLIB 1.2.3') TGTRLS(V4R4M0) + + ENDPGM diff --git a/3party/zlib/old/as400/readme.txt b/3party/zlib/old/as400/readme.txt new file mode 100644 index 0000000000..beae13f565 --- /dev/null +++ b/3party/zlib/old/as400/readme.txt @@ -0,0 +1,111 @@ + ZLIB version 1.2.3 for AS400 installation instructions + +I) From an AS400 *SAVF file: + +1) Unpacking archive to an AS400 save file + +On the AS400: + +_ Create the ZLIB AS400 library: + + CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library') + +_ Create a work save file, for example: + + CRTSAVF FILE(ZLIB/ZLIBSAVF) + +On a PC connected to the target AS400: + +_ Unpack the save file image to a PC file "ZLIBSAVF" +_ Upload this file into the save file on the AS400, for example + using ftp in BINARY mode. + + +2) Populating the ZLIB AS400 source library + +On the AS400: + +_ Extract the saved objects into the ZLIB AS400 library using: + +RSTOBJ OBJ(*ALL) SAVLIB(ZLIB) DEV(*SAVF) SAVF(ZLIB/ZLIBSAVF) RSTLIB(ZLIB) + + +3) Customize installation: + +_ Edit CL member ZLIB/TOOLS(COMPILE) and change parameters if needed, + according to the comments. + +_ Compile this member with: + + CRTCLPGM PGM(ZLIB/COMPILE) SRCFILE(ZLIB/TOOLS) SRCMBR(COMPILE) + + +4) Compile and generate the service program: + +_ This can now be done by executing: + + CALL PGM(ZLIB/COMPILE) + + + +II) From the original source distribution: + +1) On the AS400, create the source library: + + CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library') + +2) Create the source files: + + CRTSRCPF FILE(ZLIB/SOURCES) RCDLEN(112) TEXT('ZLIB library modules') + CRTSRCPF FILE(ZLIB/H) RCDLEN(112) TEXT('ZLIB library includes') + CRTSRCPF FILE(ZLIB/TOOLS) RCDLEN(112) TEXT('ZLIB library control utilities') + +3) From the machine hosting the distribution files, upload them (with + FTP in text mode, for example) according to the following table: + + Original AS400 AS400 AS400 AS400 + file file member type description + SOURCES Original ZLIB C subprogram sources + adler32.c ADLER32 C ZLIB - Compute the Adler-32 checksum of a dta strm + compress.c COMPRESS C ZLIB - Compress a memory buffer + crc32.c CRC32 C ZLIB - Compute the CRC-32 of a data stream + deflate.c DEFLATE C ZLIB - Compress data using the deflation algorithm + gzio.c GZIO C ZLIB - IO on .gz files + infback.c INFBACK C ZLIB - Inflate using a callback interface + inffast.c INFFAST C ZLIB - Fast proc. literals & length/distance pairs + inflate.c INFLATE C ZLIB - Interface to inflate modules + inftrees.c INFTREES C ZLIB - Generate Huffman trees for efficient decode + trees.c TREES C ZLIB - Output deflated data using Huffman coding + uncompr.c UNCOMPR C ZLIB - Decompress a memory buffer + zutil.c ZUTIL C ZLIB - Target dependent utility functions + H Original ZLIB C and ILE/RPG include files + crc32.h CRC32 C ZLIB - CRC32 tables + deflate.h DEFLATE C ZLIB - Internal compression state + inffast.h INFFAST C ZLIB - Header to use inffast.c + inffixed.h INFFIXED C ZLIB - Table for decoding fixed codes + inflate.h INFLATE C ZLIB - Internal inflate state definitions + inftrees.h INFTREES C ZLIB - Header to use inftrees.c + trees.h TREES C ZLIB - Created automatically with -DGEN_TREES_H + zconf.h ZCONF C ZLIB - Compression library configuration + zlib.h ZLIB C ZLIB - Compression library C user interface + as400/zlib.inc ZLIB.INC RPGLE ZLIB - Compression library ILE RPG user interface + zutil.h ZUTIL C ZLIB - Internal interface and configuration + TOOLS Building source software & AS/400 README + as400/bndsrc BNDSRC Entry point exportation list + as400/compile.clp COMPILE CLP Compile sources & generate service program + as400/readme.txt README TXT Installation instructions + +4) Continue as in I)3). + + + + +Notes: For AS400 ILE RPG programmers, a /copy member defining the ZLIB + API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC). + Please read comments in this member for more information. + + Remember that most foreign textual data are ASCII coded: this + implementation does not handle conversion from/to ASCII, so + text data code conversions must be done explicitely. + + Always open zipped files in binary mode. diff --git a/3party/zlib/old/as400/zlib.inc b/3party/zlib/old/as400/zlib.inc new file mode 100644 index 0000000000..a9a4f5cf4f --- /dev/null +++ b/3party/zlib/old/as400/zlib.inc @@ -0,0 +1,331 @@ + * ZLIB.INC - Interface to the general purpose compression library + * + * ILE RPG400 version by Patrick Monnerat, DATASPHERE. + * Version 1.2.3.9 + * + * + * WARNING: + * Procedures inflateInit(), inflateInit2(), deflateInit(), + * deflateInit2() and inflateBackInit() need to be called with + * two additional arguments: + * the package version string and the stream control structure. + * size. This is needed because RPG lacks some macro feature. + * Call these procedures as: + * inflateInit(...: ZLIB_VERSION: %size(z_stream)) + * + /if not defined(ZLIB_H_) + /define ZLIB_H_ + * + ************************************************************************** + * Constants + ************************************************************************** + * + * Versioning information. + * + D ZLIB_VERSION C '1.2.3.9' + D ZLIB_VERNUM C X'1239' + * + * Other equates. + * + D Z_NO_FLUSH C 0 + D Z_SYNC_FLUSH C 2 + D Z_FULL_FLUSH C 3 + D Z_FINISH C 4 + D Z_BLOCK C 5 + * + D Z_OK C 0 + D Z_STREAM_END C 1 + D Z_NEED_DICT C 2 + D Z_ERRNO C -1 + D Z_STREAM_ERROR C -2 + D Z_DATA_ERROR C -3 + D Z_MEM_ERROR C -4 + D Z_BUF_ERROR C -5 + DZ_VERSION_ERROR C -6 + * + D Z_NO_COMPRESSION... + D C 0 + D Z_BEST_SPEED C 1 + D Z_BEST_COMPRESSION... + D C 9 + D Z_DEFAULT_COMPRESSION... + D C -1 + * + D Z_FILTERED C 1 + D Z_HUFFMAN_ONLY C 2 + D Z_RLE C 3 + D Z_DEFAULT_STRATEGY... + D C 0 + * + D Z_BINARY C 0 + D Z_ASCII C 1 + D Z_UNKNOWN C 2 + * + D Z_DEFLATED C 8 + * + D Z_NULL C 0 + * + ************************************************************************** + * Types + ************************************************************************** + * + D z_streamp S * Stream struct ptr + D gzFile S * File pointer + D z_off_t S 10i 0 Stream offsets + * + ************************************************************************** + * Structures + ************************************************************************** + * + * The GZIP encode/decode stream support structure. + * + D z_stream DS align based(z_streamp) + D zs_next_in * Next input byte + D zs_avail_in 10U 0 Byte cnt at next_in + D zs_total_in 10U 0 Total bytes read + D zs_next_out * Output buffer ptr + D zs_avail_out 10U 0 Room left @ next_out + D zs_total_out 10U 0 Total bytes written + D zs_msg * Last errmsg or null + D zs_state * Internal state + D zs_zalloc * procptr Int. state allocator + D zs_free * procptr Int. state dealloc. + D zs_opaque * Private alloc. data + D zs_data_type 10i 0 ASC/BIN best guess + D zs_adler 10u 0 Uncompr. adler32 val + D 10U 0 Reserved + D 10U 0 Ptr. alignment + * + ************************************************************************** + * Utility function prototypes + ************************************************************************** + * + D compress PR 10I 0 extproc('compress') + D dest 32767 options(*varsize) Destination buffer + D destLen 10U 0 Destination length + D source 32767 const options(*varsize) Source buffer + D sourceLen 10u 0 value Source length + * + D compress2 PR 10I 0 extproc('compress2') + D dest 32767 options(*varsize) Destination buffer + D destLen 10U 0 Destination length + D source 32767 const options(*varsize) Source buffer + D sourceLen 10U 0 value Source length + D level 10I 0 value Compression level + * + D compressBound PR 10U 0 extproc('compressBound') + D sourceLen 10U 0 value + * + D uncompress PR 10I 0 extproc('uncompress') + D dest 32767 options(*varsize) Destination buffer + D destLen 10U 0 Destination length + D source 32767 const options(*varsize) Source buffer + D sourceLen 10U 0 value Source length + * + D gzopen PR extproc('gzopen') + D like(gzFile) + D path * value options(*string) File pathname + D mode * value options(*string) Open mode + * + D gzdopen PR extproc('gzdopen') + D like(gzFile) + D fd 10i 0 value File descriptor + D mode * value options(*string) Open mode + * + D gzsetparams PR 10I 0 extproc('gzsetparams') + D file value like(gzFile) File pointer + D level 10I 0 value + D strategy 10i 0 value + * + D gzread PR 10I 0 extproc('gzread') + D file value like(gzFile) File pointer + D buf 32767 options(*varsize) Buffer + D len 10u 0 value Buffer length + * + D gzwrite PR 10I 0 extproc('gzwrite') + D file value like(gzFile) File pointer + D buf 32767 const options(*varsize) Buffer + D len 10u 0 value Buffer length + * + D gzputs PR 10I 0 extproc('gzputs') + D file value like(gzFile) File pointer + D s * value options(*string) String to output + * + D gzgets PR * extproc('gzgets') + D file value like(gzFile) File pointer + D buf 32767 options(*varsize) Read buffer + D len 10i 0 value Buffer length + * + D gzflush PR 10i 0 extproc('gzflush') + D file value like(gzFile) File pointer + D flush 10I 0 value Type of flush + * + D gzseek PR extproc('gzseek') + D like(z_off_t) + D file value like(gzFile) File pointer + D offset value like(z_off_t) Offset + D whence 10i 0 value Origin + * + D gzrewind PR 10i 0 extproc('gzrewind') + D file value like(gzFile) File pointer + * + D gztell PR extproc('gztell') + D like(z_off_t) + D file value like(gzFile) File pointer + * + D gzeof PR 10i 0 extproc('gzeof') + D file value like(gzFile) File pointer + * + D gzclose PR 10i 0 extproc('gzclose') + D file value like(gzFile) File pointer + * + D gzerror PR * extproc('gzerror') Error string + D file value like(gzFile) File pointer + D errnum 10I 0 Error code + * + D gzclearerr PR extproc('gzclearerr') + D file value like(gzFile) File pointer + * + ************************************************************************** + * Basic function prototypes + ************************************************************************** + * + D zlibVersion PR * extproc('zlibVersion') Version string + * + D deflateInit PR 10I 0 extproc('deflateInit_') Init. compression + D strm like(z_stream) Compression stream + D level 10I 0 value Compression level + D version * value options(*string) Version string + D stream_size 10i 0 value Stream struct. size + * + D deflate PR 10I 0 extproc('deflate') Compress data + D strm like(z_stream) Compression stream + D flush 10I 0 value Flush type required + * + D deflateEnd PR 10I 0 extproc('deflateEnd') Termin. compression + D strm like(z_stream) Compression stream + * + D inflateInit PR 10I 0 extproc('inflateInit_') Init. expansion + D strm like(z_stream) Expansion stream + D version * value options(*string) Version string + D stream_size 10i 0 value Stream struct. size + * + D inflate PR 10I 0 extproc('inflate') Expand data + D strm like(z_stream) Expansion stream + D flush 10I 0 value Flush type required + * + D inflateEnd PR 10I 0 extproc('inflateEnd') Termin. expansion + D strm like(z_stream) Expansion stream + * + ************************************************************************** + * Advanced function prototypes + ************************************************************************** + * + D deflateInit2 PR 10I 0 extproc('deflateInit2_') Init. compression + D strm like(z_stream) Compression stream + D level 10I 0 value Compression level + D method 10I 0 value Compression method + D windowBits 10I 0 value log2(window size) + D memLevel 10I 0 value Mem/cmpress tradeoff + D strategy 10I 0 value Compression stategy + D version * value options(*string) Version string + D stream_size 10i 0 value Stream struct. size + * + D deflateSetDictionary... + D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary + D strm like(z_stream) Compression stream + D dictionary 32767 const options(*varsize) Dictionary bytes + D dictLength 10U 0 value Dictionary length + * + D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm + D dest like(z_stream) Destination stream + D source like(z_stream) Source stream + * + D deflateReset PR 10I 0 extproc('deflateReset') End and init. stream + D strm like(z_stream) Compression stream + * + D deflateParams PR 10I 0 extproc('deflateParams') Change level & strat + D strm like(z_stream) Compression stream + D level 10I 0 value Compression level + D strategy 10I 0 value Compression stategy + * + D deflateBound PR 10U 0 extproc('deflateBound') Change level & strat + D strm like(z_stream) Compression stream + D sourcelen 10U 0 value Compression level + * + D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat + D strm like(z_stream) Compression stream + D bits 10I 0 value Number of bits to insert + D value 10I 0 value Bits to insert + * + D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion + D strm like(z_stream) Expansion stream + D windowBits 10I 0 value log2(window size) + D version * value options(*string) Version string + D stream_size 10i 0 value Stream struct. size + * + D inflateSetDictionary... + D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary + D strm like(z_stream) Expansion stream + D dictionary 32767 const options(*varsize) Dictionary bytes + D dictLength 10U 0 value Dictionary length + * + D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion + D strm like(z_stream) Expansion stream + * + D inflateCopy PR 10I 0 extproc('inflateCopy') + D dest like(z_stream) Destination stream + D source like(z_stream) Source stream + * + D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream + D strm like(z_stream) Expansion stream + * + D inflateBackInit... + D PR 10I 0 extproc('inflateBackInit_') + D strm like(z_stream) Expansion stream + D windowBits 10I 0 value Log2(buffer size) + D window 32767 options(*varsize) Buffer + D version * value options(*string) Version string + D stream_size 10i 0 value Stream struct. size + * + D inflateBack PR 10I 0 extproc('inflateBack') + D strm like(z_stream) Expansion stream + D in * value procptr Input function + D in_desc * value Input descriptor + D out * value procptr Output function + D out_desc * value Output descriptor + * + D inflateBackEnd PR 10I 0 extproc('inflateBackEnd') + D strm like(z_stream) Expansion stream + * + D zlibCompileFlags... + D PR 10U 0 extproc('zlibCompileFlags') + * + ************************************************************************** + * Checksum function prototypes + ************************************************************************** + * + D adler32 PR 10U 0 extproc('adler32') New checksum + D adler 10U 0 value Old checksum + D buf 32767 const options(*varsize) Bytes to accumulate + D len 10U 0 value Buffer length + * + D crc32 PR 10U 0 extproc('crc32') New checksum + D crc 10U 0 value Old checksum + D buf 32767 const options(*varsize) Bytes to accumulate + D len 10U 0 value Buffer length + * + ************************************************************************** + * Miscellaneous function prototypes + ************************************************************************** + * + D zError PR * extproc('zError') Error string + D err 10I 0 value Error code + * + D inflateSyncPoint... + D PR 10I 0 extproc('inflateSyncPoint') + D strm like(z_stream) Expansion stream + * + D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs + * + /endif diff --git a/3party/zlib/old/descrip.mms b/3party/zlib/old/descrip.mms new file mode 100644 index 0000000000..7066da5b55 --- /dev/null +++ b/3party/zlib/old/descrip.mms @@ -0,0 +1,48 @@ +# descrip.mms: MMS description file for building zlib on VMS +# written by Martin P.J. Zinser <m.zinser@gsi.de> + +cc_defs = +c_deb = + +.ifdef __DECC__ +pref = /prefix=all +.endif + +OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\ + deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\ + inftrees.obj, infcodes.obj, infutil.obj, inffast.obj + +CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF) + +all : example.exe minigzip.exe + @ write sys$output " Example applications available" +libz.olb : libz.olb($(OBJS)) + @ write sys$output " libz available" + +example.exe : example.obj libz.olb + link example,libz.olb/lib + +minigzip.exe : minigzip.obj libz.olb + link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib + +clean : + delete *.obj;*,libz.olb;* + + +# Other dependencies. +adler32.obj : zutil.h zlib.h zconf.h +compress.obj : zlib.h zconf.h +crc32.obj : zutil.h zlib.h zconf.h +deflate.obj : deflate.h zutil.h zlib.h zconf.h +example.obj : zlib.h zconf.h +gzio.obj : zutil.h zlib.h zconf.h +infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h +infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h +inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h +inflate.obj : zutil.h zlib.h zconf.h infblock.h +inftrees.obj : zutil.h zlib.h zconf.h inftrees.h +infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h +minigzip.obj : zlib.h zconf.h +trees.obj : deflate.h zutil.h zlib.h zconf.h +uncompr.obj : zlib.h zconf.h +zutil.obj : zutil.h zlib.h zconf.h diff --git a/3party/zlib/old/os2/Makefile.os2 b/3party/zlib/old/os2/Makefile.os2 new file mode 100644 index 0000000000..a105aaa5bb --- /dev/null +++ b/3party/zlib/old/os2/Makefile.os2 @@ -0,0 +1,136 @@ +# Makefile for zlib under OS/2 using GCC (PGCC) +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile and test, type: +# cp Makefile.os2 .. +# cd .. +# make -f Makefile.os2 test + +# This makefile will build a static library z.lib, a shared library +# z.dll and a import library zdll.lib. You can use either z.lib or +# zdll.lib by specifying either -lz or -lzdll on gcc's command line + +CC=gcc -Zomf -s + +CFLAGS=-O6 -Wall +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-g -DDEBUG +#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ +# -Wstrict-prototypes -Wmissing-prototypes + +#################### BUG WARNING: ##################### +## infcodes.c hits a bug in pgcc-1.0, so you have to use either +## -O# where # <= 4 or one of (-fno-ommit-frame-pointer or -fno-force-mem) +## This bug is reportedly fixed in pgcc >1.0, but this was not tested +CFLAGS+=-fno-force-mem + +LDFLAGS=-s -L. -lzdll -Zcrtdll +LDSHARED=$(CC) -s -Zomf -Zdll -Zcrtdll + +VER=1.1.0 +ZLIB=z.lib +SHAREDLIB=z.dll +SHAREDLIBIMP=zdll.lib +LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP) + +AR=emxomfar cr +IMPLIB=emximp +RANLIB=echo +TAR=tar +SHELL=bash + +prefix=/usr/local +exec_prefix = $(prefix) + +OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ + zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o + +TEST_OBJS = example.o minigzip.o + +DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \ + algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \ + nt/Makefile.nt nt/zlib.dnt contrib/README.contrib contrib/*.txt \ + contrib/asm386/*.asm contrib/asm386/*.c \ + contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \ + contrib/iostream/*.h contrib/iostream2/*.h contrib/iostream2/*.cpp \ + contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 + +all: example.exe minigzip.exe + +test: all + @LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \ + echo hello world | ./minigzip | ./minigzip -d || \ + echo ' *** minigzip test FAILED ***' ; \ + if ./example; then \ + echo ' *** zlib test OK ***'; \ + else \ + echo ' *** zlib test FAILED ***'; \ + fi + +$(ZLIB): $(OBJS) + $(AR) $@ $(OBJS) + -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 + +$(SHAREDLIB): $(OBJS) os2/z.def + $(LDSHARED) -o $@ $^ + +$(SHAREDLIBIMP): os2/z.def + $(IMPLIB) -o $@ $^ + +example.exe: example.o $(LIBS) + $(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS) + +minigzip.exe: minigzip.o $(LIBS) + $(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS) + +clean: + rm -f *.o *~ example minigzip libz.a libz.so* foo.gz + +distclean: clean + +zip: + mv Makefile Makefile~; cp -p Makefile.in Makefile + rm -f test.c ztest*.c + v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\ + zip -ul9 zlib$$v $(DISTFILES) + mv Makefile~ Makefile + +dist: + mv Makefile Makefile~; cp -p Makefile.in Makefile + rm -f test.c ztest*.c + d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\ + rm -f $$d.tar.gz; \ + if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \ + files=""; \ + for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \ + cd ..; \ + GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \ + if test ! -d $$d; then rm -f $$d; fi + mv Makefile~ Makefile + +tags: + etags *.[ch] + +depend: + makedepend -- $(CFLAGS) -- *.[ch] + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +adler32.o: zlib.h zconf.h +compress.o: zlib.h zconf.h +crc32.o: zlib.h zconf.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +example.o: zlib.h zconf.h +gzio.o: zutil.h zlib.h zconf.h +infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h +infcodes.o: zutil.h zlib.h zconf.h +infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h +inffast.o: infblock.h infcodes.h infutil.h inffast.h +inflate.o: zutil.h zlib.h zconf.h infblock.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h +minigzip.o: zlib.h zconf.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h +uncompr.o: zlib.h zconf.h +zutil.o: zutil.h zlib.h zconf.h diff --git a/3party/zlib/old/os2/zlib.def b/3party/zlib/old/os2/zlib.def new file mode 100644 index 0000000000..4c753f1a3b --- /dev/null +++ b/3party/zlib/old/os2/zlib.def @@ -0,0 +1,51 @@ +; +; Slightly modified version of ../nt/zlib.dnt :-) +; + +LIBRARY Z +DESCRIPTION "Zlib compression library for OS/2" +CODE PRELOAD MOVEABLE DISCARDABLE +DATA PRELOAD MOVEABLE MULTIPLE + +EXPORTS + adler32 + compress + crc32 + deflate + deflateCopy + deflateEnd + deflateInit2_ + deflateInit_ + deflateParams + deflateReset + deflateSetDictionary + gzclose + gzdopen + gzerror + gzflush + gzopen + gzread + gzwrite + inflate + inflateEnd + inflateInit2_ + inflateInit_ + inflateReset + inflateSetDictionary + inflateSync + uncompress + zlibVersion + gzprintf + gzputc + gzgetc + gzseek + gzrewind + gztell + gzeof + gzsetparams + zError + inflateSyncPoint + get_crc_table + compress2 + gzputs + gzgets diff --git a/3party/zlib/old/visual-basic.txt b/3party/zlib/old/visual-basic.txt new file mode 100644 index 0000000000..57efe58124 --- /dev/null +++ b/3party/zlib/old/visual-basic.txt @@ -0,0 +1,160 @@ +See below some functions declarations for Visual Basic. + +Frequently Asked Question: + +Q: Each time I use the compress function I get the -5 error (not enough + room in the output buffer). + +A: Make sure that the length of the compressed buffer is passed by + reference ("as any"), not by value ("as long"). Also check that + before the call of compress this length is equal to the total size of + the compressed buffer and not zero. + + +From: "Jon Caruana" <jon-net@usa.net> +Subject: Re: How to port zlib declares to vb? +Date: Mon, 28 Oct 1996 18:33:03 -0600 + +Got the answer! (I haven't had time to check this but it's what I got, and +looks correct): + +He has the following routines working: + compress + uncompress + gzopen + gzwrite + gzread + gzclose + +Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form) + +#If Win16 Then 'Use Win16 calls. +Declare Function compress Lib "ZLIB.DLL" (ByVal compr As + String, comprLen As Any, ByVal buf As String, ByVal buflen + As Long) As Integer +Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr + As String, uncomprLen As Any, ByVal compr As String, ByVal + lcompr As Long) As Integer +Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As + String, ByVal mode As String) As Long +Declare Function gzread Lib "ZLIB.DLL" (ByVal file As + Long, ByVal uncompr As String, ByVal uncomprLen As Integer) + As Integer +Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As + Long, ByVal uncompr As String, ByVal uncomprLen As Integer) + As Integer +Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As + Long) As Integer +#Else +Declare Function compress Lib "ZLIB32.DLL" + (ByVal compr As String, comprLen As Any, ByVal buf As + String, ByVal buflen As Long) As Integer +Declare Function uncompress Lib "ZLIB32.DLL" + (ByVal uncompr As String, uncomprLen As Any, ByVal compr As + String, ByVal lcompr As Long) As Long +Declare Function gzopen Lib "ZLIB32.DLL" + (ByVal file As String, ByVal mode As String) As Long +Declare Function gzread Lib "ZLIB32.DLL" + (ByVal file As Long, ByVal uncompr As String, ByVal + uncomprLen As Long) As Long +Declare Function gzwrite Lib "ZLIB32.DLL" + (ByVal file As Long, ByVal uncompr As String, ByVal + uncomprLen As Long) As Long +Declare Function gzclose Lib "ZLIB32.DLL" + (ByVal file As Long) As Long +#End If + +-Jon Caruana +jon-net@usa.net +Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member + + +Here is another example from Michael <michael_borgsys@hotmail.com> that he +says conforms to the VB guidelines, and that solves the problem of not +knowing the uncompressed size by storing it at the end of the file: + +'Calling the functions: +'bracket meaning: <parameter> [optional] {Range of possible values} +'Call subCompressFile(<path with filename to compress> [, <path with +filename to write to>, [level of compression {1..9}]]) +'Call subUncompressFile(<path with filename to compress>) + +Option Explicit +Private lngpvtPcnSml As Long 'Stores value for 'lngPercentSmaller' +Private Const SUCCESS As Long = 0 +Private Const strFilExt As String = ".cpr" +Private Declare Function lngfncCpr Lib "zlib.dll" Alias "compress2" (ByRef +dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long, +ByVal level As Integer) As Long +Private Declare Function lngfncUcp Lib "zlib.dll" Alias "uncompress" (ByRef +dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long) +As Long + +Public Sub subCompressFile(ByVal strargOriFilPth As String, Optional ByVal +strargCprFilPth As String, Optional ByVal intLvl As Integer = 9) + Dim strCprPth As String + Dim lngOriSiz As Long + Dim lngCprSiz As Long + Dim bytaryOri() As Byte + Dim bytaryCpr() As Byte + lngOriSiz = FileLen(strargOriFilPth) + ReDim bytaryOri(lngOriSiz - 1) + Open strargOriFilPth For Binary Access Read As #1 + Get #1, , bytaryOri() + Close #1 + strCprPth = IIf(strargCprFilPth = "", strargOriFilPth, strargCprFilPth) +'Select file path and name + strCprPth = strCprPth & IIf(Right(strCprPth, Len(strFilExt)) = +strFilExt, "", strFilExt) 'Add file extension if not exists + lngCprSiz = (lngOriSiz * 1.01) + 12 'Compression needs temporary a bit +more space then original file size + ReDim bytaryCpr(lngCprSiz - 1) + If lngfncCpr(bytaryCpr(0), lngCprSiz, bytaryOri(0), lngOriSiz, intLvl) = +SUCCESS Then + lngpvtPcnSml = (1# - (lngCprSiz / lngOriSiz)) * 100 + ReDim Preserve bytaryCpr(lngCprSiz - 1) + Open strCprPth For Binary Access Write As #1 + Put #1, , bytaryCpr() + Put #1, , lngOriSiz 'Add the the original size value to the end +(last 4 bytes) + Close #1 + Else + MsgBox "Compression error" + End If + Erase bytaryCpr + Erase bytaryOri +End Sub + +Public Sub subUncompressFile(ByVal strargFilPth As String) + Dim bytaryCpr() As Byte + Dim bytaryOri() As Byte + Dim lngOriSiz As Long + Dim lngCprSiz As Long + Dim strOriPth As String + lngCprSiz = FileLen(strargFilPth) + ReDim bytaryCpr(lngCprSiz - 1) + Open strargFilPth For Binary Access Read As #1 + Get #1, , bytaryCpr() + Close #1 + 'Read the original file size value: + lngOriSiz = bytaryCpr(lngCprSiz - 1) * (2 ^ 24) _ + + bytaryCpr(lngCprSiz - 2) * (2 ^ 16) _ + + bytaryCpr(lngCprSiz - 3) * (2 ^ 8) _ + + bytaryCpr(lngCprSiz - 4) + ReDim Preserve bytaryCpr(lngCprSiz - 5) 'Cut of the original size value + ReDim bytaryOri(lngOriSiz - 1) + If lngfncUcp(bytaryOri(0), lngOriSiz, bytaryCpr(0), lngCprSiz) = SUCCESS +Then + strOriPth = Left(strargFilPth, Len(strargFilPth) - Len(strFilExt)) + Open strOriPth For Binary Access Write As #1 + Put #1, , bytaryOri() + Close #1 + Else + MsgBox "Uncompression error" + End If + Erase bytaryCpr + Erase bytaryOri +End Sub +Public Property Get lngPercentSmaller() As Long + lngPercentSmaller = lngpvtPcnSml +End Property diff --git a/3party/zlib/old/visualc6/README.txt b/3party/zlib/old/visualc6/README.txt new file mode 100644 index 0000000000..d0296c272c --- /dev/null +++ b/3party/zlib/old/visualc6/README.txt @@ -0,0 +1,73 @@ +Microsoft Developer Studio Project Files, Format Version 6.00 for zlib.
+
+Copyright (C) 2000-2004 Simon-Pierre Cadieux.
+Copyright (C) 2004 Cosmin Truta.
+For conditions of distribution and use, see copyright notice in zlib.h.
+
+
+This project builds the zlib binaries as follows:
+
+* Win32_DLL_Release\zlib1.dll DLL build
+* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
+* Win32_DLL_ASM_Release\zlib1.dll DLL build using ASM code
+* Win32_DLL_ASM_Debug\zlib1d.dll DLL build using ASM code (debug version)
+* Win32_LIB_Release\zlib.lib static build
+* Win32_LIB_Debug\zlibd.lib static build (debug version)
+* Win32_LIB_ASM_Release\zlib.lib static build using ASM code
+* Win32_LIB_ASM_Debug\zlibd.lib static build using ASM code (debug version)
+
+
+For more information regarding the DLL builds, please see the DLL FAQ
+in ..\..\win32\DLL_FAQ.txt.
+
+
+To build and test:
+
+1) On the main menu, select "File | Open Workspace".
+ Open "zlib.dsw".
+
+2) Select "Build | Set Active Configuration".
+ Choose the configuration you wish to build.
+
+3) Select "Build | Clean".
+
+4) Select "Build | Build ... (F7)". Ignore warning messages about
+ not being able to find certain include files (e.g. alloc.h).
+
+5) If you built one of the sample programs (example or minigzip),
+ select "Build | Execute ... (Ctrl+F5)".
+
+
+To use:
+
+1) Select "Project | Settings (Alt+F7)".
+ Make note of the configuration names used in your project.
+ Usually, these names are "Win32 Release" and "Win32 Debug".
+
+2) In the Workspace window, select the "FileView" tab.
+ Right-click on the root item "Workspace '...'".
+ Select "Insert Project into Workspace".
+ Switch on the checkbox "Dependency of:", and select the name
+ of your project. Open "zlib.dsp".
+
+3) Select "Build | Configurations".
+ For each configuration of your project:
+ 3.1) Choose the zlib configuration you wish to use.
+ 3.2) Click on "Add".
+ 3.3) Set the new zlib configuration name to the name used by
+ the configuration from the current iteration.
+
+4) Select "Build | Set Active Configuration".
+ Choose the configuration you wish to build.
+
+5) Select "Build | Build ... (F7)".
+
+6) If you built an executable program, select
+ "Build | Execute ... (Ctrl+F5)".
+
+
+Note:
+
+To build the ASM-enabled code, you need Microsoft Assembler
+(ML.EXE). You can get it by downloading and installing the
+latest Processor Pack for Visual C++ 6.0.
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+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
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+!MESSAGE "example - Win32 LIB Release" (based on "Win32 (x86) Console Application")
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+!MESSAGE "zlib - Win32 DLL ASM Debug" (based on "Win32 (x86) Dynamic-Link Library")
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+!MESSAGE "zlib - Win32 DLL Debug" (based on "Win32 (x86) Dynamic-Link Library")
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+!MESSAGE "zlib - Win32 LIB ASM Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE "zlib - Win32 LIB Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "zlib - Win32 LIB Debug" (based on "Win32 (x86) Static Library")
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+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
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+# ADD LINK32 /nologo /dll /debug /machine:I386 /out:"Win32_DLL_ASM_Debug\zlib1d.dll" /pdbtype:sept
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+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
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+# ADD LINK32 /nologo /dll /machine:I386 /out:"Win32_DLL_Release\zlib1.dll"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP BASE Use_MFC 0
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+# SUBTRACT CPP /YX /Yc /Yu
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+# ADD LINK32 /nologo /dll /debug /machine:I386 /out:"Win32_DLL_Debug\zlib1d.dll" /pdbtype:sept
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
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+# PROP BASE Use_MFC 0
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+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
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+# PROP BASE Use_MFC 0
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+# SUBTRACT CPP /YX /Yc /Yu
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+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
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+# PROP BASE Intermediate_Dir "zlib___Win32_LIB_Release"
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+# SUBTRACT CPP /YX /Yc /Yu
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+# ADD BASE RSC /l 0x409 /d "NDEBUG"
+# ADD RSC /l 0x409 /d "NDEBUG"
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+# ADD BASE LIB32 /nologo
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+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "zlib___Win32_LIB_Debug"
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+# SUBTRACT BASE CPP /YX /Yc /Yu
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+# SUBTRACT CPP /YX /Yc /Yu
+RSC=rc.exe
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG"
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+
+!ENDIF
+
+# Begin Target
+
+# Name "zlib - Win32 DLL ASM Release"
+# Name "zlib - Win32 DLL ASM Debug"
+# Name "zlib - Win32 DLL Release"
+# Name "zlib - Win32 DLL Debug"
+# Name "zlib - Win32 LIB ASM Release"
+# Name "zlib - Win32 LIB ASM Debug"
+# Name "zlib - Win32 LIB Release"
+# Name "zlib - Win32 LIB Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
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+# End Source File
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+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+SOURCE=..\..\gzlib.c
+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+# Begin Source File
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+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
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+SOURCE=..\..\trees.c
+# End Source File
+# Begin Source File
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+# End Source File
+# Begin Source File
+
+SOURCE=..\..\win32\zlib.def
+
+!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
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+!ENDIF
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+# End Source File
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+# End Source File
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+SOURCE=..\..\deflate.h
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+SOURCE=..\..\inffast.h
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+SOURCE=..\..\trees.h
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+SOURCE=..\..\zconf.h
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+SOURCE=..\..\zlib.h
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+SOURCE=..\..\zutil.h
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+SOURCE=..\..\win32\zlib1.rc
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+# PROP Default_Filter "asm;obj;c;cpp;cxx;h;hpp;hxx"
+# Begin Source File
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+SOURCE=..\..\contrib\masmx86\gvmat32.asm
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+!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
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+# Begin Custom Build - Assembling...
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+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
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+# End Custom Build
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+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
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+# Begin Custom Build - Assembling...
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+# End Custom Build
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+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
+
+# Begin Custom Build - Assembling...
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+InputName=gvmat32
+
+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
+ ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
+
+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
+
+# Begin Custom Build - Assembling...
+IntDir=.\Win32_LIB_ASM_Debug
+InputPath=..\..\contrib\masmx86\gvmat32.asm
+InputName=gvmat32
+
+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
+ ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
+
+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\contrib\masmx86\gvmat32c.c
+
+!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
+
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
+
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
+
+# PROP Exclude_From_Build 1
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
+
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
+
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
+
+# PROP Exclude_From_Build 1
+# ADD CPP /I "..\.."
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+# ADD CPP /I "..\.."
+
+!ENDIF
+
+# End Source File
+# Begin Source File
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+SOURCE=..\..\contrib\masmx86\inffas32.asm
+
+!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
+
+# Begin Custom Build - Assembling...
+IntDir=.\Win32_DLL_ASM_Release
+InputPath=..\..\contrib\masmx86\inffas32.asm
+InputName=inffas32
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+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
+ ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
+
+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
+
+# Begin Custom Build - Assembling...
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+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
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+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
+
+# Begin Custom Build - Assembling...
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+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
+ ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
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+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
+
+# Begin Custom Build - Assembling...
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+"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
+ ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
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+# End Custom Build
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
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+!ENDIF
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+# End Source File
+# End Target
+# End Project
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diff --git a/3party/zlib/qnx/package.qpg b/3party/zlib/qnx/package.qpg new file mode 100644 index 0000000000..2bc63b21ac --- /dev/null +++ b/3party/zlib/qnx/package.qpg @@ -0,0 +1,141 @@ +<QPG:Generation> + <QPG:Options> + <QPG:User unattended="no" verbosity="2" listfiles="yes"/> + <QPG:Defaults type="qnx_package"/> + <QPG:Source></QPG:Source> + <QPG:Release number="+"/> + <QPG:Build></QPG:Build> + <QPG:FileSorting strip="yes"/> + <QPG:Package targets="combine"/> + <QPG:Repository generate="yes"/> + <QPG:FinalDir></QPG:FinalDir> + <QPG:Cleanup></QPG:Cleanup> + </QPG:Options> + + <QPG:Responsible> + <QPG:Company></QPG:Company> + <QPG:Department></QPG:Department> + <QPG:Group></QPG:Group> + <QPG:Team></QPG:Team> + <QPG:Employee></QPG:Employee> + <QPG:EmailAddress></QPG:EmailAddress> + </QPG:Responsible> + + <QPG:Values> + <QPG:Files> + <QPG:Add file="../zconf.h" install="/opt/include/" user="root:sys" permission="644"/> + <QPG:Add file="../zlib.h" install="/opt/include/" user="root:sys" permission="644"/> + <QPG:Add file="../libz.so.1.2.5" install="/opt/lib/" user="root:bin" permission="644"/> + <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.5"/> + <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.5"/> + <QPG:Add file="../libz.so.1.2.5" install="/opt/lib/" component="slib"/> + </QPG:Files> + + <QPG:PackageFilter> + <QPM:PackageManifest> + <QPM:PackageDescription> + <QPM:PackageType>Library</QPM:PackageType> + <QPM:PackageReleaseNotes></QPM:PackageReleaseNotes> + <QPM:PackageReleaseUrgency>Medium</QPM:PackageReleaseUrgency> + <QPM:PackageRepository></QPM:PackageRepository> + <QPM:FileVersion>2.0</QPM:FileVersion> + </QPM:PackageDescription> + + <QPM:ProductDescription> + <QPM:ProductName>zlib</QPM:ProductName> + <QPM:ProductIdentifier>zlib</QPM:ProductIdentifier> + <QPM:ProductEmail>alain.bonnefoy@icbt.com</QPM:ProductEmail> + <QPM:VendorName>Public</QPM:VendorName> + <QPM:VendorInstallName>public</QPM:VendorInstallName> + <QPM:VendorURL>www.gzip.org/zlib</QPM:VendorURL> + <QPM:VendorEmbedURL></QPM:VendorEmbedURL> + <QPM:VendorEmail></QPM:VendorEmail> + <QPM:AuthorName>Jean-Loup Gailly,Mark Adler</QPM:AuthorName> + <QPM:AuthorURL>www.gzip.org/zlib</QPM:AuthorURL> + <QPM:AuthorEmbedURL></QPM:AuthorEmbedURL> + <QPM:AuthorEmail>zlib@gzip.org</QPM:AuthorEmail> + <QPM:ProductIconSmall></QPM:ProductIconSmall> + <QPM:ProductIconLarge></QPM:ProductIconLarge> + <QPM:ProductDescriptionShort>A massively spiffy yet delicately unobtrusive compression library.</QPM:ProductDescriptionShort> + <QPM:ProductDescriptionLong>zlib is designed to be a free, general-purpose, legally unencumbered, lossless data compression library for use on virtually any computer hardware and operating system.</QPM:ProductDescriptionLong> + <QPM:ProductDescriptionURL>http://www.gzip.org/zlib</QPM:ProductDescriptionURL> + <QPM:ProductDescriptionEmbedURL></QPM:ProductDescriptionEmbedURL> + </QPM:ProductDescription> + + <QPM:ReleaseDescription> + <QPM:ReleaseVersion>1.2.5</QPM:ReleaseVersion> + <QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency> + <QPM:ReleaseStability>Stable</QPM:ReleaseStability> + <QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor> + <QPM:ReleaseNoteMajor></QPM:ReleaseNoteMajor> + <QPM:ExcludeCountries> + <QPM:Country></QPM:Country> + </QPM:ExcludeCountries> + + <QPM:ReleaseCopyright>No License</QPM:ReleaseCopyright> + </QPM:ReleaseDescription> + + <QPM:ContentDescription> + <QPM:ContentTopic xmlmultiple="true">Software Development/Libraries and Extensions/C Libraries</QPM:ContentTopic> + <QPM:ContentKeyword>zlib,compression</QPM:ContentKeyword> + <QPM:TargetOS>qnx6</QPM:TargetOS> + <QPM:HostOS>qnx6</QPM:HostOS> + <QPM:DisplayEnvironment xmlmultiple="true">None</QPM:DisplayEnvironment> + <QPM:TargetAudience xmlmultiple="true">Developer</QPM:TargetAudience> + </QPM:ContentDescription> + </QPM:PackageManifest> + </QPG:PackageFilter> + + <QPG:PackageFilter proc="none" target="none"> + <QPM:PackageManifest> + <QPM:ProductInstallationDependencies> + <QPM:ProductRequirements></QPM:ProductRequirements> + </QPM:ProductInstallationDependencies> + + <QPM:ProductInstallationProcedure> + <QPM:Script xmlmultiple="true"> + <QPM:ScriptName></QPM:ScriptName> + <QPM:ScriptType>Install</QPM:ScriptType> + <QPM:ScriptTiming>Post</QPM:ScriptTiming> + <QPM:ScriptBlocking>No</QPM:ScriptBlocking> + <QPM:ScriptResult>Ignore</QPM:ScriptResult> + <QPM:ShortDescription></QPM:ShortDescription> + <QPM:UseBinaries>No</QPM:UseBinaries> + <QPM:Priority>Optional</QPM:Priority> + </QPM:Script> + </QPM:ProductInstallationProcedure> + </QPM:PackageManifest> + + <QPM:Launch> + </QPM:Launch> + </QPG:PackageFilter> + + <QPG:PackageFilter type="core" component="none"> + <QPM:PackageManifest> + <QPM:ProductInstallationProcedure> + <QPM:OrderDependency xmlmultiple="true"> + <QPM:Order>InstallOver</QPM:Order> + <QPM:Product>zlib</QPM:Product> + </QPM:OrderDependency> + </QPM:ProductInstallationProcedure> + </QPM:PackageManifest> + + <QPM:Launch> + </QPM:Launch> + </QPG:PackageFilter> + + <QPG:PackageFilter type="core" component="dev"> + <QPM:PackageManifest> + <QPM:ProductInstallationProcedure> + <QPM:OrderDependency xmlmultiple="true"> + <QPM:Order>InstallOver</QPM:Order> + <QPM:Product>zlib-dev</QPM:Product> + </QPM:OrderDependency> + </QPM:ProductInstallationProcedure> + </QPM:PackageManifest> + + <QPM:Launch> + </QPM:Launch> + </QPG:PackageFilter> + </QPG:Values> +</QPG:Generation> diff --git a/3party/zlib/treebuild.xml b/3party/zlib/treebuild.xml new file mode 100644 index 0000000000..6b8f5428d4 --- /dev/null +++ b/3party/zlib/treebuild.xml @@ -0,0 +1,116 @@ +<?xml version="1.0" ?> +<package name="zlib" version="1.2.5"> + <library name="zlib" dlversion="1.2.5" dlname="z"> + <property name="description"> zip compression library </property> + <property name="include-target-dir" value="$(@PACKAGE/install-includedir)" /> + + <!-- fixme: not implemented yet --> + <property name="compiler/c/inline" value="yes" /> + + <include-file name="zlib.h" scope="public" mode="644" /> + <include-file name="zconf.h" scope="public" mode="644" /> + + <source name="adler32.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + </source> + <source name="compress.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + </source> + <source name="crc32.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="crc32.h" /> + </source> + <source name="gzclose.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="gzguts.h" /> + </source> + <source name="gzlib.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="gzguts.h" /> + </source> + <source name="gzread.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="gzguts.h" /> + </source> + <source name="gzwrite.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="gzguts.h" /> + </source> + <source name="uncompr.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + </source> + <source name="deflate.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="deflate.h" /> + </source> + <source name="trees.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="deflate.h" /> + <depend name="trees.h" /> + </source> + <source name="zutil.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + </source> + <source name="inflate.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="inftrees.h" /> + <depend name="inflate.h" /> + <depend name="inffast.h" /> + </source> + <source name="infback.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="inftrees.h" /> + <depend name="inflate.h" /> + <depend name="inffast.h" /> + </source> + <source name="inftrees.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="inftrees.h" /> + </source> + <source name="inffast.c"> + <depend name="zlib.h" /> + <depend name="zconf.h" /> + <depend name="zutil.h" /> + <depend name="inftrees.h" /> + <depend name="inflate.h" /> + <depend name="inffast.h" /> + </source> + </library> +</package> + +<!-- +CFLAGS=-O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-g -DDEBUG +#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ +# -Wstrict-prototypes -Wmissing-prototypes + +# OBJA = +# to use the asm code: make OBJA=match.o +# +match.o: match.S + $(CPP) match.S > _match.s + $(CC) -c _match.s + mv _match.o match.o + rm -f _match.s +--> diff --git a/3party/zlib/watcom/watcom_f.mak b/3party/zlib/watcom/watcom_f.mak new file mode 100644 index 0000000000..37f4d74c19 --- /dev/null +++ b/3party/zlib/watcom/watcom_f.mak @@ -0,0 +1,43 @@ +# Makefile for zlib +# OpenWatcom flat model +# Last updated: 28-Dec-2005 + +# To use, do "wmake -f watcom_f.mak" + +C_SOURCE = adler32.c compress.c crc32.c deflate.c & + gzclose.c gzlib.c gzread.c gzwrite.c & + infback.c inffast.c inflate.c inftrees.c & + trees.c uncompr.c zutil.c + +OBJS = adler32.obj compress.obj crc32.obj deflate.obj & + gzclose.obj gzlib.obj gzread.obj gzwrite.obj & + infback.obj inffast.obj inflate.obj inftrees.obj & + trees.obj uncompr.obj zutil.obj + +CC = wcc386 +LINKER = wcl386 +CFLAGS = -zq -mf -3r -fp3 -s -bt=dos -oilrtfm -fr=nul -wx +ZLIB_LIB = zlib_f.lib + +.C.OBJ: + $(CC) $(CFLAGS) $[@ + +all: $(ZLIB_LIB) example.exe minigzip.exe + +$(ZLIB_LIB): $(OBJS) + wlib -b -c $(ZLIB_LIB) -+adler32.obj -+compress.obj -+crc32.obj + wlib -b -c $(ZLIB_LIB) -+gzclose.obj -+gzlib.obj -+gzread.obj -+gzwrite.obj + wlib -b -c $(ZLIB_LIB) -+deflate.obj -+infback.obj + wlib -b -c $(ZLIB_LIB) -+inffast.obj -+inflate.obj -+inftrees.obj + wlib -b -c $(ZLIB_LIB) -+trees.obj -+uncompr.obj -+zutil.obj + +example.exe: $(ZLIB_LIB) example.obj + $(LINKER) -ldos32a -fe=example.exe example.obj $(ZLIB_LIB) + +minigzip.exe: $(ZLIB_LIB) minigzip.obj + $(LINKER) -ldos32a -fe=minigzip.exe minigzip.obj $(ZLIB_LIB) + +clean: .SYMBOLIC + del *.obj + del $(ZLIB_LIB) + @echo Cleaning done diff --git a/3party/zlib/watcom/watcom_l.mak b/3party/zlib/watcom/watcom_l.mak new file mode 100644 index 0000000000..193eed7b31 --- /dev/null +++ b/3party/zlib/watcom/watcom_l.mak @@ -0,0 +1,43 @@ +# Makefile for zlib +# OpenWatcom large model +# Last updated: 28-Dec-2005 + +# To use, do "wmake -f watcom_l.mak" + +C_SOURCE = adler32.c compress.c crc32.c deflate.c & + gzclose.c gzlib.c gzread.c gzwrite.c & + infback.c inffast.c inflate.c inftrees.c & + trees.c uncompr.c zutil.c + +OBJS = adler32.obj compress.obj crc32.obj deflate.obj & + gzclose.obj gzlib.obj gzread.obj gzwrite.obj & + infback.obj inffast.obj inflate.obj inftrees.obj & + trees.obj uncompr.obj zutil.obj + +CC = wcc +LINKER = wcl +CFLAGS = -zq -ml -s -bt=dos -oilrtfm -fr=nul -wx +ZLIB_LIB = zlib_l.lib + +.C.OBJ: + $(CC) $(CFLAGS) $[@ + +all: $(ZLIB_LIB) example.exe minigzip.exe + +$(ZLIB_LIB): $(OBJS) + wlib -b -c $(ZLIB_LIB) -+adler32.obj -+compress.obj -+crc32.obj + wlib -b -c $(ZLIB_LIB) -+gzclose.obj -+gzlib.obj -+gzread.obj -+gzwrite.obj + wlib -b -c $(ZLIB_LIB) -+deflate.obj -+infback.obj + wlib -b -c $(ZLIB_LIB) -+inffast.obj -+inflate.obj -+inftrees.obj + wlib -b -c $(ZLIB_LIB) -+trees.obj -+uncompr.obj -+zutil.obj + +example.exe: $(ZLIB_LIB) example.obj + $(LINKER) -fe=example.exe example.obj $(ZLIB_LIB) + +minigzip.exe: $(ZLIB_LIB) minigzip.obj + $(LINKER) -fe=minigzip.exe minigzip.obj $(ZLIB_LIB) + +clean: .SYMBOLIC + del *.obj + del $(ZLIB_LIB) + @echo Cleaning done diff --git a/3party/zlib/win32/DLL_FAQ.txt b/3party/zlib/win32/DLL_FAQ.txt new file mode 100644 index 0000000000..12c009018c --- /dev/null +++ b/3party/zlib/win32/DLL_FAQ.txt @@ -0,0 +1,397 @@ + + Frequently Asked Questions about ZLIB1.DLL + + +This document describes the design, the rationale, and the usage +of the official DLL build of zlib, named ZLIB1.DLL. If you have +general questions about zlib, you should see the file "FAQ" found +in the zlib distribution, or at the following location: + http://www.gzip.org/zlib/zlib_faq.html + + + 1. What is ZLIB1.DLL, and how can I get it? + + - ZLIB1.DLL is the official build of zlib as a DLL. + (Please remark the character '1' in the name.) + + Pointers to a precompiled ZLIB1.DLL can be found in the zlib + web site at: + http://www.zlib.net/ + + Applications that link to ZLIB1.DLL can rely on the following + specification: + + * The exported symbols are exclusively defined in the source + files "zlib.h" and "zlib.def", found in an official zlib + source distribution. + * The symbols are exported by name, not by ordinal. + * The exported names are undecorated. + * The calling convention of functions is "C" (CDECL). + * The ZLIB1.DLL binary is linked to MSVCRT.DLL. + + The archive in which ZLIB1.DLL is bundled contains compiled + test programs that must run with a valid build of ZLIB1.DLL. + It is recommended to download the prebuilt DLL from the zlib + web site, instead of building it yourself, to avoid potential + incompatibilities that could be introduced by your compiler + and build settings. If you do build the DLL yourself, please + make sure that it complies with all the above requirements, + and it runs with the precompiled test programs, bundled with + the original ZLIB1.DLL distribution. + + If, for any reason, you need to build an incompatible DLL, + please use a different file name. + + + 2. Why did you change the name of the DLL to ZLIB1.DLL? + What happened to the old ZLIB.DLL? + + - The old ZLIB.DLL, built from zlib-1.1.4 or earlier, required + compilation settings that were incompatible to those used by + a static build. The DLL settings were supposed to be enabled + by defining the macro ZLIB_DLL, before including "zlib.h". + Incorrect handling of this macro was silently accepted at + build time, resulting in two major problems: + + * ZLIB_DLL was missing from the old makefile. When building + the DLL, not all people added it to the build options. In + consequence, incompatible incarnations of ZLIB.DLL started + to circulate around the net. + + * When switching from using the static library to using the + DLL, applications had to define the ZLIB_DLL macro and + to recompile all the sources that contained calls to zlib + functions. Failure to do so resulted in creating binaries + that were unable to run with the official ZLIB.DLL build. + + The only possible solution that we could foresee was to make + a binary-incompatible change in the DLL interface, in order to + remove the dependency on the ZLIB_DLL macro, and to release + the new DLL under a different name. + + We chose the name ZLIB1.DLL, where '1' indicates the major + zlib version number. We hope that we will not have to break + the binary compatibility again, at least not as long as the + zlib-1.x series will last. + + There is still a ZLIB_DLL macro, that can trigger a more + efficient build and use of the DLL, but compatibility no + longer dependents on it. + + + 3. Can I build ZLIB.DLL from the new zlib sources, and replace + an old ZLIB.DLL, that was built from zlib-1.1.4 or earlier? + + - In principle, you can do it by assigning calling convention + keywords to the macros ZEXPORT and ZEXPORTVA. In practice, + it depends on what you mean by "an old ZLIB.DLL", because the + old DLL exists in several mutually-incompatible versions. + You have to find out first what kind of calling convention is + being used in your particular ZLIB.DLL build, and to use the + same one in the new build. If you don't know what this is all + about, you might be better off if you would just leave the old + DLL intact. + + + 4. Can I compile my application using the new zlib interface, and + link it to an old ZLIB.DLL, that was built from zlib-1.1.4 or + earlier? + + - The official answer is "no"; the real answer depends again on + what kind of ZLIB.DLL you have. Even if you are lucky, this + course of action is unreliable. + + If you rebuild your application and you intend to use a newer + version of zlib (post- 1.1.4), it is strongly recommended to + link it to the new ZLIB1.DLL. + + + 5. Why are the zlib symbols exported by name, and not by ordinal? + + - Although exporting symbols by ordinal is a little faster, it + is risky. Any single glitch in the maintenance or use of the + DEF file that contains the ordinals can result in incompatible + builds and frustrating crashes. Simply put, the benefits of + exporting symbols by ordinal do not justify the risks. + + Technically, it should be possible to maintain ordinals in + the DEF file, and still export the symbols by name. Ordinals + exist in every DLL, and even if the dynamic linking performed + at the DLL startup is searching for names, ordinals serve as + hints, for a faster name lookup. However, if the DEF file + contains ordinals, the Microsoft linker automatically builds + an implib that will cause the executables linked to it to use + those ordinals, and not the names. It is interesting to + notice that the GNU linker for Win32 does not suffer from this + problem. + + It is possible to avoid the DEF file if the exported symbols + are accompanied by a "__declspec(dllexport)" attribute in the + source files. You can do this in zlib by predefining the + ZLIB_DLL macro. + + + 6. I see that the ZLIB1.DLL functions use the "C" (CDECL) calling + convention. Why not use the STDCALL convention? + STDCALL is the standard convention in Win32, and I need it in + my Visual Basic project! + + (For readability, we use CDECL to refer to the convention + triggered by the "__cdecl" keyword, STDCALL to refer to + the convention triggered by "__stdcall", and FASTCALL to + refer to the convention triggered by "__fastcall".) + + - Most of the native Windows API functions (without varargs) use + indeed the WINAPI convention (which translates to STDCALL in + Win32), but the standard C functions use CDECL. If a user + application is intrinsically tied to the Windows API (e.g. + it calls native Windows API functions such as CreateFile()), + sometimes it makes sense to decorate its own functions with + WINAPI. But if ANSI C or POSIX portability is a goal (e.g. + it calls standard C functions such as fopen()), it is not a + sound decision to request the inclusion of <windows.h>, or to + use non-ANSI constructs, for the sole purpose to make the user + functions STDCALL-able. + + The functionality offered by zlib is not in the category of + "Windows functionality", but is more like "C functionality". + + Technically, STDCALL is not bad; in fact, it is slightly + faster than CDECL, and it works with variable-argument + functions, just like CDECL. It is unfortunate that, in spite + of using STDCALL in the Windows API, it is not the default + convention used by the C compilers that run under Windows. + The roots of the problem reside deep inside the unsafety of + the K&R-style function prototypes, where the argument types + are not specified; but that is another story for another day. + + The remaining fact is that CDECL is the default convention. + Even if an explicit convention is hard-coded into the function + prototypes inside C headers, problems may appear. The + necessity to expose the convention in users' callbacks is one + of these problems. + + The calling convention issues are also important when using + zlib in other programming languages. Some of them, like Ada + (GNAT) and Fortran (GNU G77), have C bindings implemented + initially on Unix, and relying on the C calling convention. + On the other hand, the pre- .NET versions of Microsoft Visual + Basic require STDCALL, while Borland Delphi prefers, although + it does not require, FASTCALL. + + In fairness to all possible uses of zlib outside the C + programming language, we choose the default "C" convention. + Anyone interested in different bindings or conventions is + encouraged to maintain specialized projects. The "contrib/" + directory from the zlib distribution already holds a couple + of foreign bindings, such as Ada, C++, and Delphi. + + + 7. I need a DLL for my Visual Basic project. What can I do? + + - Define the ZLIB_WINAPI macro before including "zlib.h", when + building both the DLL and the user application (except that + you don't need to define anything when using the DLL in Visual + Basic). The ZLIB_WINAPI macro will switch on the WINAPI + (STDCALL) convention. The name of this DLL must be different + than the official ZLIB1.DLL. + + Gilles Vollant has contributed a build named ZLIBWAPI.DLL, + with the ZLIB_WINAPI macro turned on, and with the minizip + functionality built in. For more information, please read + the notes inside "contrib/vstudio/readme.txt", found in the + zlib distribution. + + + 8. I need to use zlib in my Microsoft .NET project. What can I + do? + + - Henrik Ravn has contributed a .NET wrapper around zlib. Look + into contrib/dotzlib/, inside the zlib distribution. + + + 9. If my application uses ZLIB1.DLL, should I link it to + MSVCRT.DLL? Why? + + - It is not required, but it is recommended to link your + application to MSVCRT.DLL, if it uses ZLIB1.DLL. + + The executables (.EXE, .DLL, etc.) that are involved in the + same process and are using the C run-time library (i.e. they + are calling standard C functions), must link to the same + library. There are several libraries in the Win32 system: + CRTDLL.DLL, MSVCRT.DLL, the static C libraries, etc. + Since ZLIB1.DLL is linked to MSVCRT.DLL, the executables that + depend on it should also be linked to MSVCRT.DLL. + + +10. Why are you saying that ZLIB1.DLL and my application should + be linked to the same C run-time (CRT) library? I linked my + application and my DLLs to different C libraries (e.g. my + application to a static library, and my DLLs to MSVCRT.DLL), + and everything works fine. + + - If a user library invokes only pure Win32 API (accessible via + <windows.h> and the related headers), its DLL build will work + in any context. But if this library invokes standard C API, + things get more complicated. + + There is a single Win32 library in a Win32 system. Every + function in this library resides in a single DLL module, that + is safe to call from anywhere. On the other hand, there are + multiple versions of the C library, and each of them has its + own separate internal state. Standalone executables and user + DLLs that call standard C functions must link to a C run-time + (CRT) library, be it static or shared (DLL). Intermixing + occurs when an executable (not necessarily standalone) and a + DLL are linked to different CRTs, and both are running in the + same process. + + Intermixing multiple CRTs is possible, as long as their + internal states are kept intact. The Microsoft Knowledge Base + articles KB94248 "HOWTO: Use the C Run-Time" and KB140584 + "HOWTO: Link with the Correct C Run-Time (CRT) Library" + mention the potential problems raised by intermixing. + + If intermixing works for you, it's because your application + and DLLs are avoiding the corruption of each of the CRTs' + internal states, maybe by careful design, or maybe by fortune. + + Also note that linking ZLIB1.DLL to non-Microsoft CRTs, such + as those provided by Borland, raises similar problems. + + +11. Why are you linking ZLIB1.DLL to MSVCRT.DLL? + + - MSVCRT.DLL exists on every Windows 95 with a new service pack + installed, or with Microsoft Internet Explorer 4 or later, and + on all other Windows 4.x or later (Windows 98, Windows NT 4, + or later). It is freely distributable; if not present in the + system, it can be downloaded from Microsoft or from other + software provider for free. + + The fact that MSVCRT.DLL does not exist on a virgin Windows 95 + is not so problematic. Windows 95 is scarcely found nowadays, + Microsoft ended its support a long time ago, and many recent + applications from various vendors, including Microsoft, do not + even run on it. Furthermore, no serious user should run + Windows 95 without a proper update installed. + + +12. Why are you not linking ZLIB1.DLL to + <<my favorite C run-time library>> ? + + - We considered and abandoned the following alternatives: + + * Linking ZLIB1.DLL to a static C library (LIBC.LIB, or + LIBCMT.LIB) is not a good option. People are using the DLL + mainly to save disk space. If you are linking your program + to a static C library, you may as well consider linking zlib + in statically, too. + + * Linking ZLIB1.DLL to CRTDLL.DLL looks appealing, because + CRTDLL.DLL is present on every Win32 installation. + Unfortunately, it has a series of problems: it does not + work properly with Microsoft's C++ libraries, it does not + provide support for 64-bit file offsets, (and so on...), + and Microsoft discontinued its support a long time ago. + + * Linking ZLIB1.DLL to MSVCR70.DLL or MSVCR71.DLL, supplied + with the Microsoft .NET platform, and Visual C++ 7.0/7.1, + raises problems related to the status of ZLIB1.DLL as a + system component. According to the Microsoft Knowledge Base + article KB326922 "INFO: Redistribution of the Shared C + Runtime Component in Visual C++ .NET", MSVCR70.DLL and + MSVCR71.DLL are not supposed to function as system DLLs, + because they may clash with MSVCRT.DLL. Instead, the + application's installer is supposed to put these DLLs + (if needed) in the application's private directory. + If ZLIB1.DLL depends on a non-system runtime, it cannot + function as a redistributable system component. + + * Linking ZLIB1.DLL to non-Microsoft runtimes, such as + Borland's, or Cygwin's, raises problems related to the + reliable presence of these runtimes on Win32 systems. + It's easier to let the DLL build of zlib up to the people + who distribute these runtimes, and who may proceed as + explained in the answer to Question 14. + + +13. If ZLIB1.DLL cannot be linked to MSVCR70.DLL or MSVCR71.DLL, + how can I build/use ZLIB1.DLL in Microsoft Visual C++ 7.0 + (Visual Studio .NET) or newer? + + - Due to the problems explained in the Microsoft Knowledge Base + article KB326922 (see the previous answer), the C runtime that + comes with the VC7 environment is no longer considered a + system component. That is, it should not be assumed that this + runtime exists, or may be installed in a system directory. + Since ZLIB1.DLL is supposed to be a system component, it may + not depend on a non-system component. + + In order to link ZLIB1.DLL and your application to MSVCRT.DLL + in VC7, you need the library of Visual C++ 6.0 or older. If + you don't have this library at hand, it's probably best not to + use ZLIB1.DLL. + + We are hoping that, in the future, Microsoft will provide a + way to build applications linked to a proper system runtime, + from the Visual C++ environment. Until then, you have a + couple of alternatives, such as linking zlib in statically. + If your application requires dynamic linking, you may proceed + as explained in the answer to Question 14. + + +14. I need to link my own DLL build to a CRT different than + MSVCRT.DLL. What can I do? + + - Feel free to rebuild the DLL from the zlib sources, and link + it the way you want. You should, however, clearly state that + your build is unofficial. You should give it a different file + name, and/or install it in a private directory that can be + accessed by your application only, and is not visible to the + others (i.e. it's neither in the PATH, nor in the SYSTEM or + SYSTEM32 directories). Otherwise, your build may clash with + applications that link to the official build. + + For example, in Cygwin, zlib is linked to the Cygwin runtime + CYGWIN1.DLL, and it is distributed under the name CYGZ.DLL. + + +15. May I include additional pieces of code that I find useful, + link them in ZLIB1.DLL, and export them? + + - No. A legitimate build of ZLIB1.DLL must not include code + that does not originate from the official zlib source code. + But you can make your own private DLL build, under a different + file name, as suggested in the previous answer. + + For example, zlib is a part of the VCL library, distributed + with Borland Delphi and C++ Builder. The DLL build of VCL + is a redistributable file, named VCLxx.DLL. + + +16. May I remove some functionality out of ZLIB1.DLL, by enabling + macros like NO_GZCOMPRESS or NO_GZIP at compile time? + + - No. A legitimate build of ZLIB1.DLL must provide the complete + zlib functionality, as implemented in the official zlib source + code. But you can make your own private DLL build, under a + different file name, as suggested in the previous answer. + + +17. I made my own ZLIB1.DLL build. Can I test it for compliance? + + - We prefer that you download the official DLL from the zlib + web site. If you need something peculiar from this DLL, you + can send your suggestion to the zlib mailing list. + + However, in case you do rebuild the DLL yourself, you can run + it with the test programs found in the DLL distribution. + Running these test programs is not a guarantee of compliance, + but a failure can imply a detected problem. + +** + +This document is written and maintained by +Cosmin Truta <cosmint@cs.ubbcluj.ro> diff --git a/3party/zlib/win32/Makefile.bor b/3party/zlib/win32/Makefile.bor new file mode 100644 index 0000000000..3981d4246b --- /dev/null +++ b/3party/zlib/win32/Makefile.bor @@ -0,0 +1,110 @@ +# Makefile for zlib +# Borland C++ for Win32 +# +# Usage: +# make -f win32/Makefile.bor +# make -f win32/Makefile.bor LOCAL_ZLIB=-DASMV OBJA=match.obj OBJPA=+match.obj + +# ------------ Borland C++ ------------ + +# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7) +# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or +# added to the declaration of LOC here: +LOC = $(LOCAL_ZLIB) + +CC = bcc32 +AS = bcc32 +LD = bcc32 +AR = tlib +CFLAGS = -a -d -k- -O2 $(LOC) +ASFLAGS = $(LOC) +LDFLAGS = $(LOC) + + +# variables +ZLIB_LIB = zlib.lib + +OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj +OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +#OBJA = +OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj +OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj +#OBJPA= + + +# targets +all: $(ZLIB_LIB) example.exe minigzip.exe + +.c.obj: + $(CC) -c $(CFLAGS) $< + +.asm.obj: + $(AS) -c $(ASFLAGS) $< + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + + +# For the sake of the old Borland make, +# the command line is cut to fit in the MS-DOS 128 byte limit: +$(ZLIB_LIB): $(OBJ1) $(OBJ2) $(OBJA) + -del $(ZLIB_LIB) + $(AR) $(ZLIB_LIB) $(OBJP1) + $(AR) $(ZLIB_LIB) $(OBJP2) + $(AR) $(ZLIB_LIB) $(OBJPA) + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +example.exe: example.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) + +minigzip.exe: minigzip.obj $(ZLIB_LIB) + $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) + + +# cleanup +clean: + -del $(ZLIB_LIB) + -del *.obj + -del *.exe + -del *.tds + -del zlib.bak + -del foo.gz diff --git a/3party/zlib/win32/Makefile.emx b/3party/zlib/win32/Makefile.emx new file mode 100644 index 0000000000..4d6ab0efa6 --- /dev/null +++ b/3party/zlib/win32/Makefile.emx @@ -0,0 +1,69 @@ +# Makefile for zlib. Modified for emx/rsxnt by Chr. Spieler, 6/16/98. +# Copyright (C) 1995-1998 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile, or to compile and test, type: +# +# make -fmakefile.emx; make test -fmakefile.emx +# + +CC=gcc -Zwin32 + +#CFLAGS=-MMD -O +#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 +#CFLAGS=-MMD -g -DDEBUG +CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ + -Wstrict-prototypes -Wmissing-prototypes + +# If cp.exe is available, replace "copy /Y" with "cp -fp" . +CP=copy /Y +# If gnu install.exe is available, replace $(CP) with ginstall. +INSTALL=$(CP) +# The default value of RM is "rm -f." If "rm.exe" is found, comment out: +RM=del +LDLIBS=-L. -lzlib +LD=$(CC) -s -o +LDSHARED=$(CC) + +INCL=zlib.h zconf.h +LIBS=zlib.a + +AR=ar rcs + +prefix=/usr/local +exec_prefix = $(prefix) + +OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \ + gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o + +TEST_OBJS = example.o minigzip.o + +all: example.exe minigzip.exe + +test: all + ./example + echo hello world | .\minigzip | .\minigzip -d + +%.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + +zlib.a: $(OBJS) + $(AR) $@ $(OBJS) + +%.exe : %.o $(LIBS) + $(LD) $@ $< $(LDLIBS) + + +.PHONY : clean + +clean: + $(RM) *.d + $(RM) *.o + $(RM) *.exe + $(RM) zlib.a + $(RM) foo.gz + +DEPS := $(wildcard *.d) +ifneq ($(DEPS),) +include $(DEPS) +endif diff --git a/3party/zlib/win32/Makefile.gcc b/3party/zlib/win32/Makefile.gcc new file mode 100644 index 0000000000..0a33bf6a70 --- /dev/null +++ b/3party/zlib/win32/Makefile.gcc @@ -0,0 +1,164 @@ +# Makefile for zlib, derived from Makefile.dj2. +# Modified for mingw32 by C. Spieler, 6/16/98. +# Updated for zlib 1.2.x by Christian Spieler and Cosmin Truta, Mar-2003. +# Last updated: 1-Aug-2003. +# Tested under Cygwin and MinGW. + +# Copyright (C) 1995-2003 Jean-loup Gailly. +# For conditions of distribution and use, see copyright notice in zlib.h + +# To compile, or to compile and test, type: +# +# make -fmakefile.gcc; make test testdll -fmakefile.gcc +# +# To use the asm code, type: +# cp contrib/asm?86/match.S ./match.S +# make LOC=-DASMV OBJA=match.o -fmakefile.gcc +# +# To install libz.a, zconf.h and zlib.h in the system directories, type: +# +# make install -fmakefile.gcc + +# Note: +# If the platform is *not* MinGW (e.g. it is Cygwin or UWIN), +# the DLL name should be changed from "zlib1.dll". + +STATICLIB = libz.a +SHAREDLIB = zlib1.dll +IMPLIB = libzdll.a + +# +# Set to 1 if shared object needs to be installed +# +SHARED_MODE=0 + +#LOC = -DASMV +#LOC = -DDEBUG -g + +PREFIX = +CC = $(PREFIX)gcc +CFLAGS = $(LOC) -O3 -Wall +EXTRA_CFLAGS = -DNO_VIZ + +AS = $(CC) +ASFLAGS = $(LOC) -Wall + +LD = $(CC) +LDFLAGS = $(LOC) + +AR = $(PREFIX)ar +ARFLAGS = rcs + +RC = $(PREFIX)windres +RCFLAGS = --define GCC_WINDRES + +STRIP = $(PREFIX)strip + +CP = cp -fp +# If GNU install is available, replace $(CP) with install. +INSTALL = $(CP) +RM = rm -f + +prefix = /usr/local +exec_prefix = $(prefix) + +OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \ + gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o +OBJA = + +all: $(STATICLIB) $(SHAREDLIB) $(IMPLIB) example.exe minigzip.exe example_d.exe minigzip_d.exe + +test: example.exe minigzip.exe + ./example + echo hello world | ./minigzip | ./minigzip -d + +testdll: example_d.exe minigzip_d.exe + ./example_d + echo hello world | ./minigzip_d | ./minigzip_d -d + +.c.o: + $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< + +.S.o: + $(AS) $(ASFLAGS) -c -o $@ $< + +$(STATICLIB): $(OBJS) $(OBJA) + $(AR) $(ARFLAGS) $@ $(OBJS) $(OBJA) + +$(IMPLIB): $(SHAREDLIB) + +$(SHAREDLIB): win32/zlib.def $(OBJS) $(OBJA) zlibrc.o + $(CC) -shared -Wl,--out-implib,$(IMPLIB) $(LDFLAGS) \ + -o $@ win32/zlib.def $(OBJS) $(OBJA) zlibrc.o + $(STRIP) $@ + +example.exe: example.o $(STATICLIB) + $(LD) $(LDFLAGS) -o $@ example.o $(STATICLIB) + $(STRIP) $@ + +minigzip.exe: minigzip.o $(STATICLIB) + $(LD) $(LDFLAGS) -o $@ minigzip.o $(STATICLIB) + $(STRIP) $@ + +example_d.exe: example.o $(IMPLIB) + $(LD) $(LDFLAGS) -o $@ example.o $(IMPLIB) + $(STRIP) $@ + +minigzip_d.exe: minigzip.o $(IMPLIB) + $(LD) $(LDFLAGS) -o $@ minigzip.o $(IMPLIB) + $(STRIP) $@ + +zlibrc.o: win32/zlib1.rc + $(RC) $(RCFLAGS) -o $@ win32/zlib1.rc + + +# BINARY_PATH, INCLUDE_PATH and LIBRARY_PATH must be set. + +.PHONY: install uninstall clean + +install: zlib.h zconf.h $(STATICLIB) $(IMPLIB) + -@mkdir -p $(INCLUDE_PATH) + -@mkdir -p $(LIBRARY_PATH) + -if [ "$(SHARED_MODE)" = "1" ]; then \ + mkdir -p $(BINARY_PATH); \ + $(INSTALL) $(SHAREDLIB) $(BINARY_PATH); \ + $(INSTALL) $(IMPLIB) $(LIBRARY_PATH); \ + fi + -$(INSTALL) zlib.h $(INCLUDE_PATH) + -$(INSTALL) zconf.h $(INCLUDE_PATH) + -$(INSTALL) $(STATICLIB) $(LIBRARY_PATH) + +uninstall: + -if [ "$(SHARED_MODE)" = "1" ]; then \ + $(RM) $(BINARY_PATH)/$(SHAREDLIB); \ + $(RM) $(LIBRARY_PATH)/$(IMPLIB); \ + fi + -$(RM) $(INCLUDE_PATH)/zlib.h + -$(RM) $(INCLUDE_PATH)/zconf.h + -$(RM) $(LIBRARY_PATH)/$(STATICLIB) + +clean: + -$(RM) $(STATICLIB) + -$(RM) $(SHAREDLIB) + -$(RM) $(IMPLIB) + -$(RM) *.o + -$(RM) *.exe + -$(RM) foo.gz + +adler32.o: zlib.h zconf.h +compress.o: zlib.h zconf.h +crc32.o: crc32.h zlib.h zconf.h +deflate.o: deflate.h zutil.h zlib.h zconf.h +example.o: zlib.h zconf.h +gzclose.o: zlib.h zconf.h gzguts.h +gzlib.o: zlib.h zconf.h gzguts.h +gzread.o: zlib.h zconf.h gzguts.h +gzwrite.o: zlib.h zconf.h gzguts.h +inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h +inftrees.o: zutil.h zlib.h zconf.h inftrees.h +minigzip.o: zlib.h zconf.h +trees.o: deflate.h zutil.h zlib.h zconf.h trees.h +uncompr.o: zlib.h zconf.h +zutil.o: zutil.h zlib.h zconf.h diff --git a/3party/zlib/win32/Makefile.msc b/3party/zlib/win32/Makefile.msc new file mode 100644 index 0000000000..fa10a1aa5f --- /dev/null +++ b/3party/zlib/win32/Makefile.msc @@ -0,0 +1,157 @@ +# Makefile for zlib using Microsoft (Visual) C +# zlib is copyright (C) 1995-2006 Jean-loup Gailly and Mark Adler +# +# Usage: +# nmake -f win32/Makefile.msc (standard build) +# nmake -f win32/Makefile.msc LOC=-DFOO (nonstandard build) +# nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" \ +# OBJA="inffas32.obj match686.obj" (use ASM code, x86) +# nmake -f win32/Makefile.msc AS=ml64 LOC="-DASMV -DASMINF" \ +# OBJA="inffasx64.obj gvmat64.obj inffas8664.c" (use ASM code, x64) + +# optional build flags +LOC = + +# variables +STATICLIB = zlib.lib +SHAREDLIB = zlib1.dll +IMPLIB = zdll.lib + +CC = cl +AS = ml +LD = link +AR = lib +RC = rc +CFLAGS = -nologo -MD -W3 -O2 -Oy- -Zi -Fd"zlib" $(LOC) +WFLAGS = -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE +ASFLAGS = -coff -Zi $(LOC) +LDFLAGS = -nologo -debug -incremental:no -opt:ref +ARFLAGS = -nologo +RCFLAGS = /dWIN32 /r + +OBJS = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj \ + gzwrite.obj infback.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj +OBJA = + + +# targets +all: $(STATICLIB) $(SHAREDLIB) $(IMPLIB) \ + example.exe minigzip.exe example_d.exe minigzip_d.exe + +$(STATICLIB): $(OBJS) $(OBJA) + $(AR) $(ARFLAGS) -out:$@ $(OBJS) $(OBJA) + +$(IMPLIB): $(SHAREDLIB) + +$(SHAREDLIB): win32/zlib.def $(OBJS) $(OBJA) zlib1.res + $(LD) $(LDFLAGS) -def:win32/zlib.def -dll -implib:$(IMPLIB) \ + -out:$@ -base:0x5A4C0000 $(OBJS) $(OBJA) zlib1.res + if exist $@.manifest \ + mt -nologo -manifest $@.manifest -outputresource:$@;2 + +example.exe: example.obj $(STATICLIB) + $(LD) $(LDFLAGS) example.obj $(STATICLIB) + if exist $@.manifest \ + mt -nologo -manifest $@.manifest -outputresource:$@;1 + +minigzip.exe: minigzip.obj $(STATICLIB) + $(LD) $(LDFLAGS) minigzip.obj $(STATICLIB) + if exist $@.manifest \ + mt -nologo -manifest $@.manifest -outputresource:$@;1 + +example_d.exe: example.obj $(IMPLIB) + $(LD) $(LDFLAGS) -out:$@ example.obj $(IMPLIB) + if exist $@.manifest \ + mt -nologo -manifest $@.manifest -outputresource:$@;1 + +minigzip_d.exe: minigzip.obj $(IMPLIB) + $(LD) $(LDFLAGS) -out:$@ minigzip.obj $(IMPLIB) + if exist $@.manifest \ + mt -nologo -manifest $@.manifest -outputresource:$@;1 + +.c.obj: + $(CC) -c $(WFLAGS) $(CFLAGS) $< + +{contrib/masmx64}.c.obj: + $(CC) -c $(WFLAGS) $(CFLAGS) $< + +{contrib/masmx64}.asm.obj: + $(AS) -c $(ASFLAGS) $< + +{contrib/masmx86}.asm.obj: + $(AS) -c $(ASFLAGS) $< + +adler32.obj: adler32.c zlib.h zconf.h + +compress.obj: compress.c zlib.h zconf.h + +crc32.obj: crc32.c zlib.h zconf.h crc32.h + +deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h + +gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h + +gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h + +gzread.obj: gzread.c zlib.h zconf.h gzguts.h + +gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h + +infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h + +inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \ + inffast.h inffixed.h + +inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h + +trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h + +uncompr.obj: uncompr.c zlib.h zconf.h + +zutil.obj: zutil.c zutil.h zlib.h zconf.h + +gvmat64.obj: contrib\masmx64\gvmat64.asm + +inffasx64.obj: contrib\masmx64\inffasx64.asm + +inffas8664.obj: contrib\masmx64\inffas8664.c zutil.h zlib.h zconf.h \ + inftrees.h inflate.h inffast.h + +inffas32.obj: contrib\masmx86\inffas32.asm + +match686.obj: contrib\masmx86\match686.asm + +example.obj: example.c zlib.h zconf.h + +minigzip.obj: minigzip.c zlib.h zconf.h + +zlib1.res: win32/zlib1.rc + $(RC) $(RCFLAGS) /fo$@ win32/zlib1.rc + + +# testing +test: example.exe minigzip.exe + example + echo hello world | minigzip | minigzip -d + +testdll: example_d.exe minigzip_d.exe + example_d + echo hello world | minigzip_d | minigzip_d -d + + +# cleanup +clean: + -del $(STATICLIB) + -del $(SHAREDLIB) + -del $(IMPLIB) + -del *.obj + -del *.res + -del *.exp + -del *.exe + -del *.pdb + -del *.manifest + -del foo.gz diff --git a/3party/zlib/win32/README-WIN32.txt b/3party/zlib/win32/README-WIN32.txt new file mode 100644 index 0000000000..1e4c093c5e --- /dev/null +++ b/3party/zlib/win32/README-WIN32.txt @@ -0,0 +1,103 @@ +ZLIB DATA COMPRESSION LIBRARY + +zlib 1.2.4 is a general purpose data compression library. All the code is +thread safe. The data format used by the zlib library is described by RFCs +(Request for Comments) 1950 to 1952 in the files +http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) +and rfc1952.txt (gzip format). + +All functions of the compression library are documented in the file zlib.h +(volunteer to write man pages welcome, contact zlib@gzip.org). Two compiled +examples are distributed in this package, example and minigzip. The example_d +and minigzip_d flavors validate that the zlib1.dll file is working correctly. + +Questions about zlib should be sent to <zlib@gzip.org>. The zlib home page +is http://zlib.net/ . Before reporting a problem, please check this site to +verify that you have the latest version of zlib; otherwise get the latest +version and check whether the problem still exists or not. + +PLEASE read DLL_FAQ.txt, and the the zlib FAQ http://zlib.net/zlib_faq.html +before asking for help. + + +Manifest: + +The package zlib-1.2.4-win32-x86.zip contains the following files: + + README-WIN32.txt This document + ChangeLog Changes since previous zlib packages + DLL_FAQ.txt Frequently asked questions about zlib1.dll + zlib.3.pdf Documentation of this library in Adobe Acrobat format + + example.exe A statically-bound example (using zlib.lib, not the dll) + example.pdb Symbolic information for debugging example.exe + + example_d.exe A zlib1.dll bound example (using zdll.lib) + example_d.pdb Symbolic information for debugging example_d.exe + + minigzip.exe A statically-bound test program (using zlib.lib, not the dll) + minigzip.pdb Symbolic information for debugging minigzip.exe + + minigzip_d.exe A zlib1.dll bound test program (using zdll.lib) + minigzip_d.pdb Symbolic information for debugging minigzip_d.exe + + zlib.h Install these files into the compilers' INCLUDE path to + zconf.h compile programs which use zlib.lib or zdll.lib + + zdll.lib Install these files into the compilers' LIB path if linking + zdll.exp a compiled program to the zlib1.dll binary + + zlib.lib Install these files into the compilers' LIB path to link zlib + zlib.pdb into compiled programs, without zlib1.dll runtime dependency + (zlib.pdb provides debugging info to the compile time linker) + + zlib1.dll Install this binary shared library into the system PATH, or + the program's runtime directory (where the .exe resides) + zlib1.pdb Install in the same directory as zlib1.dll, in order to debug + an application crash using WinDbg or similar tools. + +All .pdb files above are entirely optional, but are very useful to a developer +attempting to diagnose program misbehavior or a crash. Many additional +important files for developers can be found in the zlib124.zip source package +available from http://zlib.net/ - review that package's README file for details. + + +Acknowledgments: + +The deflate format used by zlib was defined by Phil Katz. The deflate and +zlib specifications were written by L. Peter Deutsch. Thanks to all the +people who reported problems and suggested various improvements in zlib; they +are too numerous to cite here. + + +Copyright notice: + + (C) 1995-2010 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + +If you use the zlib library in a product, we would appreciate *not* receiving +lengthy legal documents to sign. The sources are provided for free but without +warranty of any kind. The library has been entirely written by Jean-loup +Gailly and Mark Adler; it does not include third-party code. + +If you redistribute modified sources, we would appreciate that you include in +the file ChangeLog history information documenting your changes. Please read +the FAQ for more information on the distribution of modified source versions. diff --git a/3party/zlib/win32/VisualC.txt b/3party/zlib/win32/VisualC.txt new file mode 100644 index 0000000000..579a5fc9e0 --- /dev/null +++ b/3party/zlib/win32/VisualC.txt @@ -0,0 +1,3 @@ + +To build zlib using the Microsoft Visual C++ environment, +use the appropriate project from the projects/ directory. diff --git a/3party/zlib/win32/zlib.def b/3party/zlib/win32/zlib.def new file mode 100644 index 0000000000..03df8bf822 --- /dev/null +++ b/3party/zlib/win32/zlib.def @@ -0,0 +1,74 @@ +LIBRARY +; zlib data compression library + +EXPORTS +; basic functions + zlibVersion + deflate + deflateEnd + inflate + inflateEnd +; advanced functions + deflateSetDictionary + deflateCopy + deflateReset + deflateParams + deflateTune + deflateBound + deflatePrime + deflateSetHeader + inflateSetDictionary + inflateSync + inflateCopy + inflateReset + inflateReset2 + inflatePrime + inflateMark + inflateGetHeader + inflateBack + inflateBackEnd + zlibCompileFlags +; utility functions + compress + compress2 + compressBound + uncompress + gzopen + gzdopen + gzbuffer + gzsetparams + gzread + gzwrite + gzprintf + gzputs + gzgets + gzputc + gzgetc + gzungetc + gzflush + gzseek + gzrewind + gztell + gzoffset + gzeof + gzdirect + gzclose + gzclose_r + gzclose_w + gzerror + gzclearerr +; checksum functions + adler32 + crc32 + adler32_combine + crc32_combine +; various hacks, don't look :) + deflateInit_ + deflateInit2_ + inflateInit_ + inflateInit2_ + inflateBackInit_ + zError + inflateSyncPoint + get_crc_table + inflateUndermine diff --git a/3party/zlib/zconf.h.cmakein b/3party/zlib/zconf.h.cmakein new file mode 100644 index 0000000000..a2f71b1f32 --- /dev/null +++ b/3party/zlib/zconf.h.cmakein @@ -0,0 +1,430 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef ZCONF_H +#define ZCONF_H +#cmakedefine Z_PREFIX +#cmakedefine Z_HAVE_UNISTD_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + * Even better than compiling with -DZ_PREFIX would be to use configure to set + * this permanently in zconf.h using "./configure --zprefix". + */ +#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ + +/* all linked symbols */ +# define _dist_code z__dist_code +# define _length_code z__length_code +# define _tr_align z__tr_align +# define _tr_flush_block z__tr_flush_block +# define _tr_init z__tr_init +# define _tr_stored_block z__tr_stored_block +# define _tr_tally z__tr_tally +# define adler32 z_adler32 +# define adler32_combine z_adler32_combine +# define adler32_combine64 z_adler32_combine64 +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define crc32 z_crc32 +# define crc32_combine z_crc32_combine +# define crc32_combine64 z_crc32_combine64 +# define deflate z_deflate +# define deflateBound z_deflateBound +# define deflateCopy z_deflateCopy +# define deflateEnd z_deflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflateParams z_deflateParams +# define deflatePrime z_deflatePrime +# define deflateReset z_deflateReset +# define deflateSetDictionary z_deflateSetDictionary +# define deflateSetHeader z_deflateSetHeader +# define deflateTune z_deflateTune +# define deflate_copyright z_deflate_copyright +# define get_crc_table z_get_crc_table +# define gz_error z_gz_error +# define gz_intmax z_gz_intmax +# define gz_strwinerror z_gz_strwinerror +# define gzbuffer z_gzbuffer +# define gzclearerr z_gzclearerr +# define gzclose z_gzclose +# define gzclose_r z_gzclose_r +# define gzclose_w z_gzclose_w +# define gzdirect z_gzdirect +# define gzdopen z_gzdopen +# define gzeof z_gzeof +# define gzerror z_gzerror +# define gzflush z_gzflush +# define gzgetc z_gzgetc +# define gzgets z_gzgets +# define gzoffset z_gzoffset +# define gzoffset64 z_gzoffset64 +# define gzopen z_gzopen +# define gzopen64 z_gzopen64 +# define gzprintf z_gzprintf +# define gzputc z_gzputc +# define gzputs z_gzputs +# define gzread z_gzread +# define gzrewind z_gzrewind +# define gzseek z_gzseek +# define gzseek64 z_gzseek64 +# define gzsetparams z_gzsetparams +# define gztell z_gztell +# define gztell64 z_gztell64 +# define gzungetc z_gzungetc +# define gzwrite z_gzwrite +# define inflate z_inflate +# define inflateBack z_inflateBack +# define inflateBackEnd z_inflateBackEnd +# define inflateBackInit_ z_inflateBackInit_ +# define inflateCopy z_inflateCopy +# define inflateEnd z_inflateEnd +# define inflateGetHeader z_inflateGetHeader +# define inflateInit2_ z_inflateInit2_ +# define inflateInit_ z_inflateInit_ +# define inflateMark z_inflateMark +# define inflatePrime z_inflatePrime +# define inflateReset z_inflateReset +# define inflateReset2 z_inflateReset2 +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateUndermine z_inflateUndermine +# define inflate_copyright z_inflate_copyright +# define inflate_fast z_inflate_fast +# define inflate_table z_inflate_table +# define uncompress z_uncompress +# define zError z_zError +# define zcalloc z_zcalloc +# define zcfree z_zcfree +# define zlibCompileFlags z_zlibCompileFlags +# define zlibVersion z_zlibVersion + +/* all zlib typedefs in zlib.h and zconf.h */ +# define Byte z_Byte +# define Bytef z_Bytef +# define alloc_func z_alloc_func +# define charf z_charf +# define free_func z_free_func +# define gzFile z_gzFile +# define gz_header z_gz_header +# define gz_headerp z_gz_headerp +# define in_func z_in_func +# define intf z_intf +# define out_func z_out_func +# define uInt z_uInt +# define uIntf z_uIntf +# define uLong z_uLong +# define uLongf z_uLongf +# define voidp z_voidp +# define voidpc z_voidpc +# define voidpf z_voidpf + +/* all zlib structs in zlib.h and zconf.h */ +# define gz_header_s z_gz_header_s +# define internal_state z_internal_state + +#endif + +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif +#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) +# ifndef WIN32 +# define WIN32 +# endif +#endif +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif +# endif +#endif + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#ifdef SYS16BIT +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#ifdef __STDC_VERSION__ +# ifndef STDC +# define STDC +# endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const /* note: need a more gentle solution here */ +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +# endif +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ +# define SMALL_MEDIUM +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif +# endif +#endif + +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI +# ifdef FAR +# undef FAR +# endif +# include <windows.h> + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR CDECL +# endif +# endif +#endif + +#if defined (__BEOS__) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif +# endif +#endif + +#ifndef ZEXTERN +# define ZEXTERN extern +#endif +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(__MACTYPES__) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ +# define Z_HAVE_UNISTD_H +#endif + +#ifdef STDC +# include <sys/types.h> /* for off_t */ +#endif + +/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and + * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even + * though the former does not conform to the LFS document), but considering + * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as + * equivalently requesting no 64-bit operations + */ +#if -_LARGEFILE64_SOURCE - -1 == 1 +# undef _LARGEFILE64_SOURCE +#endif + +#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) +# include <unistd.h> /* for SEEK_* and off_t */ +# ifdef VMS +# include <unixio.h> /* for off_t */ +# endif +# ifndef z_off_t +# define z_off_t off_t +# endif +#endif + +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif + +#ifndef z_off_t +# define z_off_t long +#endif + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define z_off64_t off64_t +#else +# define z_off64_t z_off_t +#endif + +#if defined(__OS400__) +# define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) + #pragma map(deflateInit_,"DEIN") + #pragma map(deflateInit2_,"DEIN2") + #pragma map(deflateEnd,"DEEND") + #pragma map(deflateBound,"DEBND") + #pragma map(inflateInit_,"ININ") + #pragma map(inflateInit2_,"ININ2") + #pragma map(inflateEnd,"INEND") + #pragma map(inflateSync,"INSY") + #pragma map(inflateSetDictionary,"INSEDI") + #pragma map(compressBound,"CMBND") + #pragma map(inflate_table,"INTABL") + #pragma map(inflate_fast,"INFA") + #pragma map(inflate_copyright,"INCOPY") +#endif + +#endif /* ZCONF_H */ diff --git a/3party/zlib/zconf.h.in b/3party/zlib/zconf.h.in new file mode 100644 index 0000000000..02ce56c431 --- /dev/null +++ b/3party/zlib/zconf.h.in @@ -0,0 +1,428 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2010 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef ZCONF_H +#define ZCONF_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + * Even better than compiling with -DZ_PREFIX would be to use configure to set + * this permanently in zconf.h using "./configure --zprefix". + */ +#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ + +/* all linked symbols */ +# define _dist_code z__dist_code +# define _length_code z__length_code +# define _tr_align z__tr_align +# define _tr_flush_block z__tr_flush_block +# define _tr_init z__tr_init +# define _tr_stored_block z__tr_stored_block +# define _tr_tally z__tr_tally +# define adler32 z_adler32 +# define adler32_combine z_adler32_combine +# define adler32_combine64 z_adler32_combine64 +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define crc32 z_crc32 +# define crc32_combine z_crc32_combine +# define crc32_combine64 z_crc32_combine64 +# define deflate z_deflate +# define deflateBound z_deflateBound +# define deflateCopy z_deflateCopy +# define deflateEnd z_deflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflateParams z_deflateParams +# define deflatePrime z_deflatePrime +# define deflateReset z_deflateReset +# define deflateSetDictionary z_deflateSetDictionary +# define deflateSetHeader z_deflateSetHeader +# define deflateTune z_deflateTune +# define deflate_copyright z_deflate_copyright +# define get_crc_table z_get_crc_table +# define gz_error z_gz_error +# define gz_intmax z_gz_intmax +# define gz_strwinerror z_gz_strwinerror +# define gzbuffer z_gzbuffer +# define gzclearerr z_gzclearerr +# define gzclose z_gzclose +# define gzclose_r z_gzclose_r +# define gzclose_w z_gzclose_w +# define gzdirect z_gzdirect +# define gzdopen z_gzdopen +# define gzeof z_gzeof +# define gzerror z_gzerror +# define gzflush z_gzflush +# define gzgetc z_gzgetc +# define gzgets z_gzgets +# define gzoffset z_gzoffset +# define gzoffset64 z_gzoffset64 +# define gzopen z_gzopen +# define gzopen64 z_gzopen64 +# define gzprintf z_gzprintf +# define gzputc z_gzputc +# define gzputs z_gzputs +# define gzread z_gzread +# define gzrewind z_gzrewind +# define gzseek z_gzseek +# define gzseek64 z_gzseek64 +# define gzsetparams z_gzsetparams +# define gztell z_gztell +# define gztell64 z_gztell64 +# define gzungetc z_gzungetc +# define gzwrite z_gzwrite +# define inflate z_inflate +# define inflateBack z_inflateBack +# define inflateBackEnd z_inflateBackEnd +# define inflateBackInit_ z_inflateBackInit_ +# define inflateCopy z_inflateCopy +# define inflateEnd z_inflateEnd +# define inflateGetHeader z_inflateGetHeader +# define inflateInit2_ z_inflateInit2_ +# define inflateInit_ z_inflateInit_ +# define inflateMark z_inflateMark +# define inflatePrime z_inflatePrime +# define inflateReset z_inflateReset +# define inflateReset2 z_inflateReset2 +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateUndermine z_inflateUndermine +# define inflate_copyright z_inflate_copyright +# define inflate_fast z_inflate_fast +# define inflate_table z_inflate_table +# define uncompress z_uncompress +# define zError z_zError +# define zcalloc z_zcalloc +# define zcfree z_zcfree +# define zlibCompileFlags z_zlibCompileFlags +# define zlibVersion z_zlibVersion + +/* all zlib typedefs in zlib.h and zconf.h */ +# define Byte z_Byte +# define Bytef z_Bytef +# define alloc_func z_alloc_func +# define charf z_charf +# define free_func z_free_func +# define gzFile z_gzFile +# define gz_header z_gz_header +# define gz_headerp z_gz_headerp +# define in_func z_in_func +# define intf z_intf +# define out_func z_out_func +# define uInt z_uInt +# define uIntf z_uIntf +# define uLong z_uLong +# define uLongf z_uLongf +# define voidp z_voidp +# define voidpc z_voidpc +# define voidpf z_voidpf + +/* all zlib structs in zlib.h and zconf.h */ +# define gz_header_s z_gz_header_s +# define internal_state z_internal_state + +#endif + +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif +#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) +# ifndef WIN32 +# define WIN32 +# endif +#endif +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif +# endif +#endif + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#ifdef SYS16BIT +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#ifdef __STDC_VERSION__ +# ifndef STDC +# define STDC +# endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const /* note: need a more gentle solution here */ +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +# endif +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ +# define SMALL_MEDIUM +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif +# endif +#endif + +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI +# ifdef FAR +# undef FAR +# endif +# include <windows.h> + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR CDECL +# endif +# endif +#endif + +#if defined (__BEOS__) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif +# endif +#endif + +#ifndef ZEXTERN +# define ZEXTERN extern +#endif +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(__MACTYPES__) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ +# define Z_HAVE_UNISTD_H +#endif + +#ifdef STDC +# include <sys/types.h> /* for off_t */ +#endif + +/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and + * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even + * though the former does not conform to the LFS document), but considering + * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as + * equivalently requesting no 64-bit operations + */ +#if -_LARGEFILE64_SOURCE - -1 == 1 +# undef _LARGEFILE64_SOURCE +#endif + +#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) +# include <unistd.h> /* for SEEK_* and off_t */ +# ifdef VMS +# include <unixio.h> /* for off_t */ +# endif +# ifndef z_off_t +# define z_off_t off_t +# endif +#endif + +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif + +#ifndef z_off_t +# define z_off_t long +#endif + +#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 +# define z_off64_t off64_t +#else +# define z_off64_t z_off_t +#endif + +#if defined(__OS400__) +# define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) + #pragma map(deflateInit_,"DEIN") + #pragma map(deflateInit2_,"DEIN2") + #pragma map(deflateEnd,"DEEND") + #pragma map(deflateBound,"DEBND") + #pragma map(inflateInit_,"ININ") + #pragma map(inflateInit2_,"ININ2") + #pragma map(inflateEnd,"INEND") + #pragma map(inflateSync,"INSY") + #pragma map(inflateSetDictionary,"INSEDI") + #pragma map(compressBound,"CMBND") + #pragma map(inflate_table,"INTABL") + #pragma map(inflate_fast,"INFA") + #pragma map(inflate_copyright,"INCOPY") +#endif + +#endif /* ZCONF_H */ diff --git a/3party/zlib/zlib.3 b/3party/zlib/zlib.3 new file mode 100644 index 0000000000..27adc4cd10 --- /dev/null +++ b/3party/zlib/zlib.3 @@ -0,0 +1,151 @@ +.TH ZLIB 3 "19 Apr 2010" +.SH NAME +zlib \- compression/decompression library +.SH SYNOPSIS +[see +.I zlib.h +for full description] +.SH DESCRIPTION +The +.I zlib +library is a general purpose data compression library. +The code is thread safe, assuming that the standard library functions +used are thread safe, such as memory allocation routines. +It provides in-memory compression and decompression functions, +including integrity checks of the uncompressed data. +This version of the library supports only one compression method (deflation) +but other algorithms may be added later +with the same stream interface. +.LP +Compression can be done in a single step if the buffers are large enough +or can be done by repeated calls of the compression function. +In the latter case, +the application must provide more input and/or consume the output +(providing more output space) before each call. +.LP +The library also supports reading and writing files in +.IR gzip (1) +(.gz) format +with an interface similar to that of stdio. +.LP +The library does not install any signal handler. +The decoder checks the consistency of the compressed data, +so the library should never crash even in the case of corrupted input. +.LP +All functions of the compression library are documented in the file +.IR zlib.h . +The distribution source includes examples of use of the library +in the files +.I example.c +and +.IR minigzip.c, +as well as other examples in the +.IR examples/ +directory. +.LP +Changes to this version are documented in the file +.I ChangeLog +that accompanies the source. +.LP +.I zlib +is available in Java using the java.util.zip package: +.IP +http://java.sun.com/developer/technicalArticles/Programming/compression/ +.LP +A Perl interface to +.IR zlib , +written by Paul Marquess (pmqs@cpan.org), +is available at CPAN (Comprehensive Perl Archive Network) sites, +including: +.IP +http://search.cpan.org/~pmqs/IO-Compress-Zlib/ +.LP +A Python interface to +.IR zlib , +written by A.M. Kuchling (amk@magnet.com), +is available in Python 1.5 and later versions: +.IP +http://www.python.org/doc/lib/module-zlib.html +.LP +.I zlib +is built into +.IR tcl: +.IP +http://wiki.tcl.tk/4610 +.LP +An experimental package to read and write files in .zip format, +written on top of +.I zlib +by Gilles Vollant (info@winimage.com), +is available at: +.IP +http://www.winimage.com/zLibDll/minizip.html +and also in the +.I contrib/minizip +directory of the main +.I zlib +source distribution. +.SH "SEE ALSO" +The +.I zlib +web site can be found at: +.IP +http://zlib.net/ +.LP +The data format used by the zlib library is described by RFC +(Request for Comments) 1950 to 1952 in the files: +.IP +http://www.ietf.org/rfc/rfc1950.txt (for the zlib header and trailer format) +.br +http://www.ietf.org/rfc/rfc1951.txt (for the deflate compressed data format) +.br +http://www.ietf.org/rfc/rfc1952.txt (for the gzip header and trailer format) +.LP +Mark Nelson wrote an article about +.I zlib +for the Jan. 1997 issue of Dr. Dobb's Journal; +a copy of the article is available at: +.IP +http://marknelson.us/1997/01/01/zlib-engine/ +.SH "REPORTING PROBLEMS" +Before reporting a problem, +please check the +.I zlib +web site to verify that you have the latest version of +.IR zlib ; +otherwise, +obtain the latest version and see if the problem still exists. +Please read the +.I zlib +FAQ at: +.IP +http://zlib.net/zlib_faq.html +.LP +before asking for help. +Send questions and/or comments to zlib@gzip.org, +or (for the Windows DLL version) to Gilles Vollant (info@winimage.com). +.SH AUTHORS +Version 1.2.5 +Copyright (C) 1995-2010 Jean-loup Gailly (jloup@gzip.org) +and Mark Adler (madler@alumni.caltech.edu). +.LP +This software is provided "as-is," +without any express or implied warranty. +In no event will the authors be held liable for any damages +arising from the use of this software. +See the distribution directory with respect to requirements +governing redistribution. +The deflate format used by +.I zlib +was defined by Phil Katz. +The deflate and +.I zlib +specifications were written by L. Peter Deutsch. +Thanks to all the people who reported problems and suggested various +improvements in +.IR zlib ; +who are too numerous to cite here. +.LP +UNIX manual page by R. P. C. Rodgers, +U.S. National Library of Medicine (rodgers@nlm.nih.gov). +.\" end of man page diff --git a/3party/zlib/zlib.3.pdf b/3party/zlib/zlib.3.pdf Binary files differnew file mode 100644 index 0000000000..9f8a2c3999 --- /dev/null +++ b/3party/zlib/zlib.3.pdf diff --git a/3party/zlib/zlib.map b/3party/zlib/zlib.map new file mode 100644 index 0000000000..f282d3624a --- /dev/null +++ b/3party/zlib/zlib.map @@ -0,0 +1,68 @@ +ZLIB_1.2.0 { + global: + compressBound; + deflateBound; + inflateBack; + inflateBackEnd; + inflateBackInit_; + inflateCopy; + local: + deflate_copyright; + inflate_copyright; + inflate_fast; + inflate_table; + zcalloc; + zcfree; + z_errmsg; + gz_error; + gz_intmax; + _*; +}; + +ZLIB_1.2.0.2 { + gzclearerr; + gzungetc; + zlibCompileFlags; +} ZLIB_1.2.0; + +ZLIB_1.2.0.8 { + deflatePrime; +} ZLIB_1.2.0.2; + +ZLIB_1.2.2 { + adler32_combine; + crc32_combine; + deflateSetHeader; + inflateGetHeader; +} ZLIB_1.2.0.8; + +ZLIB_1.2.2.3 { + deflateTune; + gzdirect; +} ZLIB_1.2.2; + +ZLIB_1.2.2.4 { + inflatePrime; +} ZLIB_1.2.2.3; + +ZLIB_1.2.3.3 { + adler32_combine64; + crc32_combine64; + gzopen64; + gzseek64; + gztell64; + inflateUndermine; +} ZLIB_1.2.2.4; + +ZLIB_1.2.3.4 { + inflateReset2; + inflateMark; +} ZLIB_1.2.3.3; + +ZLIB_1.2.3.5 { + gzbuffer; + gzoffset; + gzoffset64; + gzclose_r; + gzclose_w; +} ZLIB_1.2.3.4; diff --git a/3party/zlib/zlib.pc.in b/3party/zlib/zlib.pc.in new file mode 100644 index 0000000000..7e5acf9c77 --- /dev/null +++ b/3party/zlib/zlib.pc.in @@ -0,0 +1,13 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +sharedlibdir=@sharedlibdir@ +includedir=@includedir@ + +Name: zlib +Description: zlib compression library +Version: @VERSION@ + +Requires: +Libs: -L${libdir} -L${sharedlibdir} -lz +Cflags: -I${includedir} diff --git a/3party/zlib/zlib.pro b/3party/zlib/zlib.pro index 5a385072d5..a23a166296 100644 --- a/3party/zlib/zlib.pro +++ b/3party/zlib/zlib.pro @@ -5,6 +5,8 @@ include($$ROOT_DIR/common.pri) TEMPLATE = lib CONFIG += staticlib +DEFINES += USE_FILE32API + SOURCES += \ adler32.c \ compress.c \ @@ -22,6 +24,8 @@ SOURCES += \ trees.c \ uncompr.c \ zutil.c \ + contrib/minizip/unzip.c \ + contrib/minizip/ioapi.c \ HEADERS += \ crc32.h \ @@ -35,4 +39,5 @@ HEADERS += \ zconf.h \ zlib.h \ zutil.h \ - + contrib/minizip/unzip.h \ + contrib/minizip/ioapi.h \ diff --git a/3party/zlib/zlib2ansi b/3party/zlib/zlib2ansi new file mode 100755 index 0000000000..15e3e165f3 --- /dev/null +++ b/3party/zlib/zlib2ansi @@ -0,0 +1,152 @@ +#!/usr/bin/perl + +# Transform K&R C function definitions into ANSI equivalent. +# +# Author: Paul Marquess +# Version: 1.0 +# Date: 3 October 2006 + +# TODO +# +# Asumes no function pointer parameters. unless they are typedefed. +# Assumes no literal strings that look like function definitions +# Assumes functions start at the beginning of a line + +use strict; +use warnings; + +local $/; +$_ = <>; + +my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments + +my $d1 = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ; +my $decl = qr{ $sp (?: \w+ $sp )+ $d1 }xo ; +my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ; + + +while (s/^ + ( # Start $1 + ( # Start $2 + .*? # Minimal eat content + ( ^ \w [\w\s\*]+ ) # $3 -- function name + \s* # optional whitespace + ) # $2 - Matched up to before parameter list + + \( \s* # Literal "(" + optional whitespace + ( [^\)]+ ) # $4 - one or more anythings except ")" + \s* \) # optional whitespace surrounding a Literal ")" + + ( (?: $dList )+ ) # $5 + + $sp ^ { # literal "{" at start of line + ) # Remember to $1 + //xsom + ) +{ + my $all = $1 ; + my $prefix = $2; + my $param_list = $4 ; + my $params = $5; + + StripComments($params); + StripComments($param_list); + $param_list =~ s/^\s+//; + $param_list =~ s/\s+$//; + + my $i = 0 ; + my %pList = map { $_ => $i++ } + split /\s*,\s*/, $param_list; + my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ; + + my @params = split /\s*;\s*/, $params; + my @outParams = (); + foreach my $p (@params) + { + if ($p =~ /,/) + { + my @bits = split /\s*,\s*/, $p; + my $first = shift @bits; + $first =~ s/^\s*//; + push @outParams, $first; + $first =~ /^(\w+\s*)/; + my $type = $1 ; + push @outParams, map { $type . $_ } @bits; + } + else + { + $p =~ s/^\s+//; + push @outParams, $p; + } + } + + + my %tmp = map { /$pMatch/; $_ => $pList{$1} } + @outParams ; + + @outParams = map { " $_" } + sort { $tmp{$a} <=> $tmp{$b} } + @outParams ; + + print $prefix ; + print "(\n" . join(",\n", @outParams) . ")\n"; + print "{" ; + +} + +# Output any trailing code. +print ; +exit 0; + + +sub StripComments +{ + + no warnings; + + # Strip C & C++ coments + # From the perlfaq + $_[0] =~ + + s{ + /\* ## Start of /* ... */ comment + [^*]*\*+ ## Non-* followed by 1-or-more *'s + ( + [^/*][^*]*\*+ + )* ## 0-or-more things which don't start with / + ## but do end with '*' + / ## End of /* ... */ comment + + | ## OR C++ Comment + // ## Start of C++ comment // + [^\n]* ## followed by 0-or-more non end of line characters + + | ## OR various things which aren't comments: + + ( + " ## Start of " ... " string + ( + \\. ## Escaped char + | ## OR + [^"\\] ## Non "\ + )* + " ## End of " ... " string + + | ## OR + + ' ## Start of ' ... ' string + ( + \\. ## Escaped char + | ## OR + [^'\\] ## Non '\ + )* + ' ## End of ' ... ' string + + | ## OR + + . ## Anything other char + [^/"'\\]* ## Chars which doesn't start a comment, string or escape + ) + }{$2}gxs; + +} |