diff options
author | cvs2svn <> | 2009-12-18 00:48:50 +0300 |
---|---|---|
committer | cvs2svn <> | 2009-12-18 00:48:50 +0300 |
commit | f522b1317829affd35914f053dfb219c1e20dae0 (patch) | |
tree | 38f475cad35aeece7805088ca23161f3ec538e2a /winsup/cygwin/path.cc | |
parent | b292054cac7f3b99d02b49987e7d435c6edb90a7 (diff) |
This commit was manufactured by cvs2svn to create tag 'newlib-1_18_0'.newlib-1_18_0
Sprout from master 2009-12-17 21:48:49 UTC Jeff Johnston <jjohnstn@redhat.com> ''
Cherrypick from cygnus 1999-05-03 07:29:06 UTC Richard Henderson <rth@redhat.com> '19990502 sourceware import':
README
config/mt-d30v
config/mt-netware
config/mt-ospace
etc/add-log.el
etc/add-log.vi
etc/configbuild.ein
etc/configbuild.fig
etc/configbuild.jin
etc/configbuild.tin
etc/configdev.ein
etc/configdev.fig
etc/configdev.jin
etc/configdev.tin
makefile.vms
Delete:
djunpack.bat
include/COPYING
include/COPYING3
include/ChangeLog
include/ChangeLog-9103
include/MAINTAINERS
include/alloca-conf.h
include/ansidecl.h
include/aout/ChangeLog
include/aout/adobe.h
include/aout/aout64.h
include/aout/ar.h
include/aout/dynix3.h
include/aout/encap.h
include/aout/host.h
include/aout/hp.h
include/aout/hp300hpux.h
include/aout/hppa.h
include/aout/ranlib.h
include/aout/reloc.h
include/aout/stab.def
include/aout/stab_gnu.h
include/aout/sun4.h
include/bfdlink.h
include/binary-io.h
include/bout.h
include/cgen/ChangeLog
include/cgen/basic-modes.h
include/cgen/basic-ops.h
include/cgen/bitset.h
include/coff/ChangeLog
include/coff/ChangeLog-9103
include/coff/alpha.h
include/coff/apollo.h
include/coff/arm.h
include/coff/aux-coff.h
include/coff/ecoff.h
include/coff/external.h
include/coff/go32exe.h
include/coff/h8300.h
include/coff/h8500.h
include/coff/i386.h
include/coff/i860.h
include/coff/i960.h
include/coff/ia64.h
include/coff/internal.h
include/coff/m68k.h
include/coff/m88k.h
include/coff/maxq.h
include/coff/mcore.h
include/coff/mips.h
include/coff/mipspe.h
include/coff/or32.h
include/coff/pe.h
include/coff/powerpc.h
include/coff/rs6000.h
include/coff/rs6k64.h
include/coff/sh.h
include/coff/sparc.h
include/coff/sym.h
include/coff/symconst.h
include/coff/ti.h
include/coff/tic30.h
include/coff/tic4x.h
include/coff/tic54x.h
include/coff/tic80.h
include/coff/w65.h
include/coff/we32k.h
include/coff/x86_64.h
include/coff/xcoff.h
include/coff/z80.h
include/coff/z8k.h
include/demangle.h
include/dis-asm.h
include/dwarf2.h
include/dyn-string.h
include/elf/ChangeLog
include/elf/ChangeLog-9103
include/elf/alpha.h
include/elf/arc.h
include/elf/arm.h
include/elf/avr.h
include/elf/bfin.h
include/elf/common.h
include/elf/cr16.h
include/elf/cr16c.h
include/elf/cris.h
include/elf/crx.h
include/elf/d10v.h
include/elf/d30v.h
include/elf/dlx.h
include/elf/dwarf.h
include/elf/external.h
include/elf/fr30.h
include/elf/frv.h
include/elf/h8.h
include/elf/hppa.h
include/elf/i370.h
include/elf/i386.h
include/elf/i860.h
include/elf/i960.h
include/elf/ia64.h
include/elf/internal.h
include/elf/ip2k.h
include/elf/iq2000.h
include/elf/lm32.h
include/elf/m32c.h
include/elf/m32r.h
include/elf/m68hc11.h
include/elf/m68k.h
include/elf/mcore.h
include/elf/mep.h
include/elf/microblaze.h
include/elf/mips.h
include/elf/mmix.h
include/elf/mn10200.h
include/elf/mn10300.h
include/elf/moxie.h
include/elf/msp430.h
include/elf/mt.h
include/elf/openrisc.h
include/elf/or32.h
include/elf/pj.h
include/elf/ppc.h
include/elf/ppc64.h
include/elf/reloc-macros.h
include/elf/rx.h
include/elf/s390.h
include/elf/score.h
include/elf/sh.h
include/elf/sparc.h
include/elf/spu.h
include/elf/v850.h
include/elf/vax.h
include/elf/vxworks.h
include/elf/x86-64.h
include/elf/xc16x.h
include/elf/xstormy16.h
include/elf/xtensa.h
include/fibheap.h
include/filenames.h
include/floatformat.h
include/fnmatch.h
include/fopen-bin.h
include/fopen-same.h
include/fopen-vms.h
include/gdb/ChangeLog
include/gdb/callback.h
include/gdb/fileio.h
include/gdb/remote-sim.h
include/gdb/signals.h
include/gdb/sim-arm.h
include/gdb/sim-cr16.h
include/gdb/sim-d10v.h
include/gdb/sim-frv.h
include/gdb/sim-h8300.h
include/gdb/sim-lm32.h
include/gdb/sim-m32c.h
include/gdb/sim-ppc.h
include/gdb/sim-rx.h
include/gdb/sim-sh.h
include/gdbm.h
include/getopt.h
include/hashtab.h
include/hp-symtab.h
include/ieee.h
include/libiberty.h
include/lto-symtab.h
include/md5.h
include/nlm/ChangeLog
include/nlm/alpha-ext.h
include/nlm/common.h
include/nlm/external.h
include/nlm/i386-ext.h
include/nlm/internal.h
include/nlm/ppc-ext.h
include/nlm/sparc32-ext.h
include/oasys.h
include/objalloc.h
include/obstack.h
include/opcode/ChangeLog
include/opcode/ChangeLog-9103
include/opcode/alpha.h
include/opcode/arc.h
include/opcode/arm.h
include/opcode/avr.h
include/opcode/bfin.h
include/opcode/cgen.h
include/opcode/convex.h
include/opcode/cr16.h
include/opcode/cris.h
include/opcode/crx.h
include/opcode/d10v.h
include/opcode/d30v.h
include/opcode/dlx.h
include/opcode/h8300.h
include/opcode/hppa.h
include/opcode/i370.h
include/opcode/i386.h
include/opcode/i860.h
include/opcode/i960.h
include/opcode/ia64.h
include/opcode/m68hc11.h
include/opcode/m68k.h
include/opcode/m88k.h
include/opcode/maxq.h
include/opcode/mips.h
include/opcode/mmix.h
include/opcode/mn10200.h
include/opcode/mn10300.h
include/opcode/moxie.h
include/opcode/msp430.h
include/opcode/np1.h
include/opcode/ns32k.h
include/opcode/or32.h
include/opcode/pdp11.h
include/opcode/pj.h
include/opcode/pn.h
include/opcode/ppc.h
include/opcode/pyr.h
include/opcode/rx.h
include/opcode/s390.h
include/opcode/score-datadep.h
include/opcode/score-inst.h
include/opcode/sparc.h
include/opcode/spu-insns.h
include/opcode/spu.h
include/opcode/tahoe.h
include/opcode/tic30.h
include/opcode/tic4x.h
include/opcode/tic54x.h
include/opcode/tic80.h
include/opcode/v850.h
include/opcode/vax.h
include/os9k.h
include/partition.h
include/plugin-api.h
include/progress.h
include/safe-ctype.h
include/sha1.h
include/sort.h
include/splay-tree.h
include/symcat.h
include/xregex.h
include/xregex2.h
include/xtensa-config.h
include/xtensa-isa-internal.h
include/xtensa-isa.h
winsup/COPYING
winsup/CYGWIN_LICENSE
winsup/ChangeLog
winsup/Makefile.common
winsup/Makefile.in
winsup/README
winsup/acinclude.m4
winsup/aclocal.m4
winsup/configure
winsup/configure.in
winsup/cygserver/ChangeLog
winsup/cygserver/Makefile.in
winsup/cygserver/README
winsup/cygserver/aclocal.m4
winsup/cygserver/bsd_helper.cc
winsup/cygserver/bsd_helper.h
winsup/cygserver/bsd_log.cc
winsup/cygserver/bsd_log.h
winsup/cygserver/bsd_mutex.cc
winsup/cygserver/bsd_mutex.h
winsup/cygserver/client.cc
winsup/cygserver/configure
winsup/cygserver/configure.in
winsup/cygserver/cygserver-config
winsup/cygserver/cygserver.cc
winsup/cygserver/cygserver.conf
winsup/cygserver/msg.cc
winsup/cygserver/process.cc
winsup/cygserver/process.h
winsup/cygserver/sem.cc
winsup/cygserver/setpwd.cc
winsup/cygserver/shm.cc
winsup/cygserver/sysv_msg.cc
winsup/cygserver/sysv_sem.cc
winsup/cygserver/sysv_shm.cc
winsup/cygserver/threaded_queue.cc
winsup/cygserver/threaded_queue.h
winsup/cygserver/transport.cc
winsup/cygserver/transport.h
winsup/cygserver/transport_pipes.cc
winsup/cygserver/transport_pipes.h
winsup/cygserver/woutsup.h
winsup/cygwin/ChangeLog
winsup/cygwin/ChangeLog-1995
winsup/cygwin/ChangeLog-1996
winsup/cygwin/ChangeLog-1997
winsup/cygwin/ChangeLog-1998
winsup/cygwin/ChangeLog-1999
winsup/cygwin/ChangeLog-2000
winsup/cygwin/ChangeLog-2001
winsup/cygwin/ChangeLog-2002
winsup/cygwin/ChangeLog-2003
winsup/cygwin/ChangeLog-2004
winsup/cygwin/ChangeLog-2005
winsup/cygwin/ChangeLog-2006
winsup/cygwin/ChangeLog-2007
winsup/cygwin/ChangeLog-2008
winsup/cygwin/Makefile.in
winsup/cygwin/ROADMAP
winsup/cygwin/acconfig.h
winsup/cygwin/aclocal.m4
winsup/cygwin/analyze_sigfe
winsup/cygwin/assert.cc
winsup/cygwin/autoload.cc
winsup/cygwin/automode.c
winsup/cygwin/binmode.c
winsup/cygwin/child_info.h
winsup/cygwin/config.h.in
winsup/cygwin/config/i386/profile.h
winsup/cygwin/configure
winsup/cygwin/configure.in
winsup/cygwin/cpuid.h
winsup/cygwin/crt0.c
winsup/cygwin/ctype.cc
winsup/cygwin/cxx.cc
winsup/cygwin/cygerrno.h
winsup/cygwin/cygheap.cc
winsup/cygwin/cygheap.h
winsup/cygwin/cygheap_malloc.h
winsup/cygwin/cyglsa.h
winsup/cygwin/cygmagic
winsup/cygwin/cygmalloc.h
winsup/cygwin/cygprops.h
winsup/cygwin/cygserver.h
winsup/cygwin/cygserver_ipc.h
winsup/cygwin/cygserver_msg.h
winsup/cygwin/cygserver_sem.h
winsup/cygwin/cygserver_setpwd.h
winsup/cygwin/cygserver_shm.h
winsup/cygwin/cygthread.cc
winsup/cygwin/cygthread.h
winsup/cygwin/cygtls.cc
winsup/cygwin/cygtls.h
winsup/cygwin/cygwin-cxx.h
winsup/cygwin/cygwin-shilka
winsup/cygwin/cygwin.din
winsup/cygwin/cygwin.sc
winsup/cygwin/cygwin_version.h
winsup/cygwin/dcrt0.cc
winsup/cygwin/debug.cc
winsup/cygwin/debug.h
winsup/cygwin/devices.cc
winsup/cygwin/devices.h
winsup/cygwin/devices.in
winsup/cygwin/dir.cc
winsup/cygwin/dlfcn.cc
winsup/cygwin/dll_init.cc
winsup/cygwin/dll_init.h
winsup/cygwin/dll_init.sgml
winsup/cygwin/dllfixdbg
winsup/cygwin/dlmalloc.c
winsup/cygwin/dlmalloc.h
winsup/cygwin/dtable.cc
winsup/cygwin/dtable.h
winsup/cygwin/dtable.sgml
winsup/cygwin/environ.cc
winsup/cygwin/environ.h
winsup/cygwin/errno.cc
winsup/cygwin/exceptions.cc
winsup/cygwin/exec.cc
winsup/cygwin/external.cc
winsup/cygwin/external.sgml
winsup/cygwin/fcntl.cc
winsup/cygwin/fhandler.cc
winsup/cygwin/fhandler.h
winsup/cygwin/fhandler_clipboard.cc
winsup/cygwin/fhandler_console.cc
winsup/cygwin/fhandler_disk_file.cc
winsup/cygwin/fhandler_dsp.cc
winsup/cygwin/fhandler_fifo.cc
winsup/cygwin/fhandler_floppy.cc
winsup/cygwin/fhandler_mailslot.cc
winsup/cygwin/fhandler_mem.cc
winsup/cygwin/fhandler_netdrive.cc
winsup/cygwin/fhandler_nodevice.cc
winsup/cygwin/fhandler_proc.cc
winsup/cygwin/fhandler_process.cc
winsup/cygwin/fhandler_procnet.cc
winsup/cygwin/fhandler_random.cc
winsup/cygwin/fhandler_raw.cc
winsup/cygwin/fhandler_registry.cc
winsup/cygwin/fhandler_serial.cc
winsup/cygwin/fhandler_socket.cc
winsup/cygwin/fhandler_tape.cc
winsup/cygwin/fhandler_termios.cc
winsup/cygwin/fhandler_tty.cc
winsup/cygwin/fhandler_virtual.cc
winsup/cygwin/fhandler_virtual.h
winsup/cygwin/fhandler_windows.cc
winsup/cygwin/fhandler_zero.cc
winsup/cygwin/flock.cc
winsup/cygwin/fork.cc
winsup/cygwin/gcrt0.c
winsup/cygwin/gendef
winsup/cygwin/gendevices
winsup/cygwin/gentls_offsets
winsup/cygwin/glob.cc
winsup/cygwin/glob_pattern_p.cc
winsup/cygwin/globals.cc
winsup/cygwin/gmon.c
winsup/cygwin/gmon.h
winsup/cygwin/grp.cc
winsup/cygwin/heap.cc
winsup/cygwin/heap.h
winsup/cygwin/hires.h
winsup/cygwin/hookapi.cc
winsup/cygwin/how-autoload-works.txt
winsup/cygwin/how-cygheap-works.txt
winsup/cygwin/how-cygtls-works.txt
winsup/cygwin/how-fhandlers-work.txt
winsup/cygwin/how-signals-work.txt
winsup/cygwin/how-spawn-works.txt
winsup/cygwin/how-to-debug-cygwin.txt
winsup/cygwin/how-vfork-works.txt
winsup/cygwin/include/a.out.h
winsup/cygwin/include/arpa/ftp.h
winsup/cygwin/include/arpa/inet.h
winsup/cygwin/include/arpa/nameser.h
winsup/cygwin/include/arpa/nameser_compat.h
winsup/cygwin/include/arpa/telnet.h
winsup/cygwin/include/asm/byteorder.h
winsup/cygwin/include/asm/socket.h
winsup/cygwin/include/asm/types.h
winsup/cygwin/include/attr/xattr.h
winsup/cygwin/include/bits/wordsize.h
winsup/cygwin/include/byteswap.h
winsup/cygwin/include/cygwin/_types.h
winsup/cygwin/include/cygwin/acl.h
winsup/cygwin/include/cygwin/config.h
winsup/cygwin/include/cygwin/core_dump.h
winsup/cygwin/include/cygwin/cygwin_dll.h
winsup/cygwin/include/cygwin/fs.h
winsup/cygwin/include/cygwin/grp.h
winsup/cygwin/include/cygwin/hdreg.h
winsup/cygwin/include/cygwin/icmp.h
winsup/cygwin/include/cygwin/if.h
winsup/cygwin/include/cygwin/in.h
winsup/cygwin/include/cygwin/in6.h
winsup/cygwin/include/cygwin/in_systm.h
winsup/cygwin/include/cygwin/ipc.h
winsup/cygwin/include/cygwin/kd.h
winsup/cygwin/include/cygwin/msg.h
winsup/cygwin/include/cygwin/mtio.h
winsup/cygwin/include/cygwin/rdevio.h
winsup/cygwin/include/cygwin/sem.h
winsup/cygwin/include/cygwin/shm.h
winsup/cygwin/include/cygwin/signal.h
winsup/cygwin/include/cygwin/socket.h
winsup/cygwin/include/cygwin/sockios.h
winsup/cygwin/include/cygwin/stat.h
winsup/cygwin/include/cygwin/stdlib.h
winsup/cygwin/include/cygwin/sys_time.h
winsup/cygwin/include/cygwin/sysproto.h
winsup/cygwin/include/cygwin/time.h
winsup/cygwin/include/cygwin/types.h
winsup/cygwin/include/cygwin/utmp.h
winsup/cygwin/include/cygwin/version.h
winsup/cygwin/include/cygwin/wait.h
winsup/cygwin/include/dlfcn.h
winsup/cygwin/include/elf.h
winsup/cygwin/include/endian.h
winsup/cygwin/include/err.h
winsup/cygwin/include/exceptions.h
winsup/cygwin/include/fcntl.h
winsup/cygwin/include/features.h
winsup/cygwin/include/fnmatch.h
winsup/cygwin/include/fts.h
winsup/cygwin/include/ftw.h
winsup/cygwin/include/getopt.h
winsup/cygwin/include/glob.h
winsup/cygwin/include/icmp.h
winsup/cygwin/include/ifaddrs.h
winsup/cygwin/include/inttypes.h
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winsup/cygwin/include/net/if.h
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winsup/cygwin/include/poll.h
winsup/cygwin/include/pthread.h
winsup/cygwin/include/pty.h
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winsup/cygwin/include/semaphore.h
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winsup/cygwin/include/sys/acl.h
winsup/cygwin/include/sys/copying.dj
winsup/cygwin/include/sys/cygwin.h
winsup/cygwin/include/sys/dirent.h
winsup/cygwin/include/sys/elf32.h
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winsup/cygwin/include/sys/elf_generic.h
winsup/cygwin/include/sys/file.h
winsup/cygwin/include/sys/ioctl.h
winsup/cygwin/include/sys/ipc.h
winsup/cygwin/include/sys/kd.h
winsup/cygwin/include/sys/lock.h
winsup/cygwin/include/sys/mman.h
winsup/cygwin/include/sys/mount.h
winsup/cygwin/include/sys/msg.h
winsup/cygwin/include/sys/mtio.h
winsup/cygwin/include/sys/param.h
winsup/cygwin/include/sys/poll.h
winsup/cygwin/include/sys/procfs.h
winsup/cygwin/include/sys/queue.h
winsup/cygwin/include/sys/resource.h
winsup/cygwin/include/sys/sched.h
winsup/cygwin/include/sys/select.h
winsup/cygwin/include/sys/sem.h
winsup/cygwin/include/sys/shm.h
winsup/cygwin/include/sys/smallprint.h
winsup/cygwin/include/sys/socket.h
winsup/cygwin/include/sys/soundcard.h
winsup/cygwin/include/sys/statfs.h
winsup/cygwin/include/sys/statvfs.h
winsup/cygwin/include/sys/stdio.h
winsup/cygwin/include/sys/strace.h
winsup/cygwin/include/sys/sysinfo.h
winsup/cygwin/include/sys/syslimits.h
winsup/cygwin/include/sys/syslog.h
winsup/cygwin/include/sys/sysmacros.h
winsup/cygwin/include/sys/sysproto.h
winsup/cygwin/include/sys/termio.h
winsup/cygwin/include/sys/termios.h
winsup/cygwin/include/sys/ttychars.h
winsup/cygwin/include/sys/uio.h
winsup/cygwin/include/sys/un.h
winsup/cygwin/include/sys/utime.h
winsup/cygwin/include/sys/utmp.h
winsup/cygwin/include/sys/utsname.h
winsup/cygwin/include/sys/vfs.h
winsup/cygwin/include/sys/wait.h
winsup/cygwin/include/sysexits.h
winsup/cygwin/include/syslog.h
winsup/cygwin/include/termio.h
winsup/cygwin/include/tzfile.h
winsup/cygwin/include/utmpx.h
winsup/cygwin/include/wait.h
winsup/cygwin/init.cc
winsup/cygwin/ioctl.cc
winsup/cygwin/ipc.cc
winsup/cygwin/kernel32.cc
winsup/cygwin/lib/_cygwin_crt0_common.cc
winsup/cygwin/lib/crt0.h
winsup/cygwin/lib/cygwin_attach_dll.c
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winsup/w32api/include/sspi.h
winsup/w32api/include/stm.h
winsup/w32api/include/strmif.h
winsup/w32api/include/subauth.h
winsup/w32api/include/svcguid.h
winsup/w32api/include/tlhelp32.h
winsup/w32api/include/tmschema.h
winsup/w32api/include/unknwn.h
winsup/w32api/include/userenv.h
winsup/w32api/include/usp10.h
winsup/w32api/include/uxtheme.h
winsup/w32api/include/vfw.h
winsup/w32api/include/vidcap.h
winsup/w32api/include/vmr9.h
winsup/w32api/include/vptype.h
winsup/w32api/include/w32api.h
winsup/w32api/include/winable.h
winsup/w32api/include/winbase.h
winsup/w32api/include/winber.h
winsup/w32api/include/wincon.h
winsup/w32api/include/wincrypt.h
winsup/w32api/include/windef.h
winsup/w32api/include/windns.h
winsup/w32api/include/windows.h
winsup/w32api/include/windowsx.h
winsup/w32api/include/winerror.h
winsup/w32api/include/wingdi.h
winsup/w32api/include/wininet.h
winsup/w32api/include/winioctl.h
winsup/w32api/include/winldap.h
winsup/w32api/include/winnetwk.h
winsup/w32api/include/winnls.h
winsup/w32api/include/winnt.h
winsup/w32api/include/winperf.h
winsup/w32api/include/winreg.h
winsup/w32api/include/winresrc.h
winsup/w32api/include/winsnmp.h
winsup/w32api/include/winsock.h
winsup/w32api/include/winsock2.h
winsup/w32api/include/winspool.h
winsup/w32api/include/winsvc.h
winsup/w32api/include/winuser.h
winsup/w32api/include/winver.h
winsup/w32api/include/ws2spi.h
winsup/w32api/include/ws2tcpip.h
winsup/w32api/include/wsahelp.h
winsup/w32api/include/wsipx.h
winsup/w32api/include/wsnetbs.h
winsup/w32api/include/wtsapi32.h
winsup/w32api/include/wtypes.h
winsup/w32api/include/xprtdefs.h
winsup/w32api/include/zmouse.h
winsup/w32api/install-sh
winsup/w32api/lib/Makefile.in
winsup/w32api/lib/aclui.def
winsup/w32api/lib/advapi32.def
winsup/w32api/lib/ativscp-uuid.c
winsup/w32api/lib/avicap32.def
winsup/w32api/lib/avifil32.def
winsup/w32api/lib/bthprops.def
winsup/w32api/lib/cap.def
winsup/w32api/lib/cguid-uuid.c
winsup/w32api/lib/comcat-uuid.c
winsup/w32api/lib/comctl32.def
winsup/w32api/lib/comdlg32.def
winsup/w32api/lib/crypt32.def
winsup/w32api/lib/ctl3d32.def
winsup/w32api/lib/ddk/Makefile.in
winsup/w32api/lib/ddk/apcups.def
winsup/w32api/lib/ddk/cfgmgr32.def
winsup/w32api/lib/ddk/dxapi.def
winsup/w32api/lib/ddk/hal.def
winsup/w32api/lib/ddk/hid.def
winsup/w32api/lib/ddk/hidparse.def
winsup/w32api/lib/ddk/mcd.def
winsup/w32api/lib/ddk/ndis.def
winsup/w32api/lib/ddk/newdev.def
winsup/w32api/lib/ddk/ntoskrnl.def
winsup/w32api/lib/ddk/scsiport.def
winsup/w32api/lib/ddk/tdi.def
winsup/w32api/lib/ddk/usbcamd.def
winsup/w32api/lib/ddk/usbcamd2.def
winsup/w32api/lib/ddk/videoprt.def
winsup/w32api/lib/ddk/win32k.def
winsup/w32api/lib/devguid.c
winsup/w32api/lib/dhcpcsvc.def
winsup/w32api/lib/directx/Makefile.in
winsup/w32api/lib/directx/d3d8.def
winsup/w32api/lib/directx/d3d9.def
winsup/w32api/lib/directx/d3dim.def
winsup/w32api/lib/directx/d3drm.def
winsup/w32api/lib/directx/d3dx8d.def
winsup/w32api/lib/directx/d3dx9d.def
winsup/w32api/lib/directx/d3dxof.def
winsup/w32api/lib/directx/ddraw.def
winsup/w32api/lib/directx/dinput.def
winsup/w32api/lib/directx/dinput8.def
winsup/w32api/lib/directx/dinput_joy.c
winsup/w32api/lib/directx/dinput_joy2.c
winsup/w32api/lib/directx/dinput_kbd.c
winsup/w32api/lib/directx/dinput_mouse.c
winsup/w32api/lib/directx/dinput_mouse2.c
winsup/w32api/lib/directx/dinput_private.h
winsup/w32api/lib/directx/dmoguids.c
winsup/w32api/lib/directx/dplayx.def
winsup/w32api/lib/directx/dpnaddr.def
winsup/w32api/lib/directx/dpnet.def
winsup/w32api/lib/directx/dpnlobby.def
winsup/w32api/lib/directx/dpvoice.def
winsup/w32api/lib/directx/dsetup.def
winsup/w32api/lib/directx/dsound.def
winsup/w32api/lib/directx/dxerr.c
winsup/w32api/lib/directx/dxerr8.c
winsup/w32api/lib/directx/dxerr8w.c
winsup/w32api/lib/directx/dxerr9.c
winsup/w32api/lib/directx/dxerr9w.c
winsup/w32api/lib/directx/dxguid.c
winsup/w32api/lib/directx/ksproxy.def
winsup/w32api/lib/directx/ksuser.c
winsup/w32api/lib/directx/ksuser.def
winsup/w32api/lib/directx/msdmo.def
winsup/w32api/lib/directx/strmiids.c
winsup/w32api/lib/directx/test.c
winsup/w32api/lib/dlcapi.def
winsup/w32api/lib/dnsapi.def
winsup/w32api/lib/docobj-uuid.c
winsup/w32api/lib/exdisp-uuid.c
winsup/w32api/lib/extras-uuid.c
winsup/w32api/lib/faultrep.def
winsup/w32api/lib/gdi32.def
winsup/w32api/lib/glaux.def
winsup/w32api/lib/glu32.def
winsup/w32api/lib/hlguids-uuid.c
winsup/w32api/lib/hlink-uuid.c
winsup/w32api/lib/icmui.def
winsup/w32api/lib/igmpagnt.def
winsup/w32api/lib/imagehlp.def
winsup/w32api/lib/imm32.def
winsup/w32api/lib/iphlpapi.def
winsup/w32api/lib/kernel32.def
winsup/w32api/lib/largeint.c
winsup/w32api/lib/lz32.def
winsup/w32api/lib/mapi32.def
winsup/w32api/lib/mfcuia32.def
winsup/w32api/lib/mgmtapi.def
winsup/w32api/lib/mlang-uuid.c
winsup/w32api/lib/mpr.def
winsup/w32api/lib/mprapi.def
winsup/w32api/lib/mqrt.def
winsup/w32api/lib/msacm32.def
winsup/w32api/lib/mscms.def
winsup/w32api/lib/mshtml-uuid.c
winsup/w32api/lib/msimg32.def
winsup/w32api/lib/msvcp60.def
winsup/w32api/lib/msvfw32.def
winsup/w32api/lib/mswsock.def
winsup/w32api/lib/msxml-uuid.c
winsup/w32api/lib/nddeapi.def
winsup/w32api/lib/netapi32.def
winsup/w32api/lib/ntdll.def
winsup/w32api/lib/oaidl-uuid.c
winsup/w32api/lib/objidl-uuid.c
winsup/w32api/lib/objsafe-uuid.c
winsup/w32api/lib/ocidl-uuid.c
winsup/w32api/lib/odbc32.def
winsup/w32api/lib/odbccp32.def
winsup/w32api/lib/ole32.def
winsup/w32api/lib/oleacc-uuid.c
winsup/w32api/lib/oleacc.def
winsup/w32api/lib/oleaut32.def
winsup/w32api/lib/olecli32.def
winsup/w32api/lib/olectlid-uuid.c
winsup/w32api/lib/oledlg.def
winsup/w32api/lib/oleidl-uuid.c
winsup/w32api/lib/olepro32.def
winsup/w32api/lib/olesvr32.def
winsup/w32api/lib/opengl32.def
winsup/w32api/lib/penwin32.def
winsup/w32api/lib/pkpd32.def
winsup/w32api/lib/power-uuid.c
winsup/w32api/lib/powrprof.def
winsup/w32api/lib/psapi.def
winsup/w32api/lib/quartz.def
winsup/w32api/lib/rapi.def
winsup/w32api/lib/rasapi32.def
winsup/w32api/lib/rasdlg.def
winsup/w32api/lib/res.rc
winsup/w32api/lib/rpcdce4.def
winsup/w32api/lib/rpcns4.def
winsup/w32api/lib/rpcrt4.def
winsup/w32api/lib/rtm.def
winsup/w32api/lib/rtutils.def
winsup/w32api/lib/scrnsave.c
winsup/w32api/lib/secur32.def
winsup/w32api/lib/servprov-uuid.c
winsup/w32api/lib/setupapi.def
winsup/w32api/lib/shell32.c
winsup/w32api/lib/shell32.def
winsup/w32api/lib/shfolder.def
winsup/w32api/lib/shlwapi.def
winsup/w32api/lib/snmpapi.def
winsup/w32api/lib/svrapi.def
winsup/w32api/lib/tapi32.def
winsup/w32api/lib/test.c
winsup/w32api/lib/th32.def
winsup/w32api/lib/thunk32.def
winsup/w32api/lib/unknwn-uuid.c
winsup/w32api/lib/url.def
winsup/w32api/lib/urlmon-uuid.c
winsup/w32api/lib/user32.def
winsup/w32api/lib/userenv.def
winsup/w32api/lib/usp10.def
winsup/w32api/lib/uxtheme.def
winsup/w32api/lib/vdmdbg.def
winsup/w32api/lib/version.def
winsup/w32api/lib/vfw32.mri
winsup/w32api/lib/win32spl.def
winsup/w32api/lib/wininet.def
winsup/w32api/lib/winmm.def
winsup/w32api/lib/winspool.def
winsup/w32api/lib/winstrm.def
winsup/w32api/lib/wldap32.def
winsup/w32api/lib/wow32.def
winsup/w32api/lib/ws2_32.c
winsup/w32api/lib/ws2_32.def
winsup/w32api/lib/wsnmp32.def
winsup/w32api/lib/wsock32.def
winsup/w32api/lib/wst.def
winsup/w32api/lib/wtsapi32.def
Diffstat (limited to 'winsup/cygwin/path.cc')
-rw-r--r-- | winsup/cygwin/path.cc | 3587 |
1 files changed, 0 insertions, 3587 deletions
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc deleted file mode 100644 index 6238f2bce..000000000 --- a/winsup/cygwin/path.cc +++ /dev/null @@ -1,3587 +0,0 @@ -/* path.cc: path support. - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2006, 2007, 2008, 2009 Red Hat, Inc. - - This file is part of Cygwin. - - This software is a copyrighted work licensed under the terms of the - Cygwin license. Please consult the file "CYGWIN_LICENSE" for - details. */ - - /* This module's job is to - - convert between POSIX and Win32 style filenames, - - support the `mount' functionality, - - support symlinks for files and directories - - Pathnames are handled as follows: - - - A \ or : in a path denotes a pure windows spec. - - Paths beginning with // (or \\) are not translated (i.e. looked - up in the mount table) and are assumed to be UNC path names. - - The goal in the above set of rules is to allow both POSIX and Win32 - flavors of pathnames without either interfering. The rules are - intended to be as close to a superset of both as possible. - - Note that you can have more than one path to a file. The mount - table is always prefered when translating Win32 paths to POSIX - paths. Win32 paths in mount table entries may be UNC paths or - standard Win32 paths starting with <drive-letter>: - - Text vs Binary issues are not considered here in path style - decisions, although the appropriate flags are retrieved and - stored in various structures. - - Removing mounted filesystem support would simplify things greatly, - but having it gives us a mechanism of treating disk that lives on a - UNIX machine as having UNIX semantics [it allows one to edit a text - file on that disk and not have cr's magically appear and perhaps - break apps running on UNIX boxes]. It also useful to be able to - layout a hierarchy without changing the underlying directories. - - The semantics of mounting file systems is not intended to precisely - follow normal UNIX systems. - - Each DOS drive is defined to have a current directory. Supporting - this would complicate things so for now things are defined so that - c: means c:\. - */ - -#include "winsup.h" -#include "miscfuncs.h" -#include <ctype.h> -#include <winioctl.h> -#include <wingdi.h> -#include <winuser.h> -#include <winnetwk.h> -#include <shlobj.h> -#include <sys/cygwin.h> -#include "cygerrno.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" -#include "dtable.h" -#include "cygheap.h" -#include "shared_info.h" -#include "cygtls.h" -#include "tls_pbuf.h" -#include "environ.h" -#include "nfs.h" -#include <assert.h> -#include <ntdll.h> -#include <wchar.h> -#include <wctype.h> - -bool dos_file_warning = true; - -suffix_info stat_suffixes[] = -{ - suffix_info ("", 1), - suffix_info (".exe", 1), - suffix_info (NULL) -}; - -struct symlink_info -{ - char contents[SYMLINK_MAX + 1]; - char *ext_here; - int extn; - unsigned pflags; - DWORD fileattr; - int issymlink; - bool ext_tacked_on; - int error; - bool isdevice; - _major_t major; - _minor_t minor; - _mode_t mode; - int check (char *path, const suffix_info *suffixes, unsigned opt, - fs_info &fs); - int set (char *path); - bool parse_device (const char *); - int check_sysfile (HANDLE h); - int check_shortcut (HANDLE h); - int check_reparse_point (HANDLE h); - int check_nfs_symlink (HANDLE h); - int posixify (char *srcbuf); - bool set_error (int); -}; - -muto NO_COPY cwdstuff::cwd_lock; - -static const GUID GUID_shortcut - = { 0x00021401L, 0, 0, {0xc0, 0, 0, 0, 0, 0, 0, 0x46}}; - -enum { - WSH_FLAG_IDLIST = 0x01, /* Contains an ITEMIDLIST. */ - WSH_FLAG_FILE = 0x02, /* Contains a file locator element. */ - WSH_FLAG_DESC = 0x04, /* Contains a description. */ - WSH_FLAG_RELPATH = 0x08, /* Contains a relative path. */ - WSH_FLAG_WD = 0x10, /* Contains a working dir. */ - WSH_FLAG_CMDLINE = 0x20, /* Contains command line args. */ - WSH_FLAG_ICON = 0x40 /* Contains a custom icon. */ -}; - -struct win_shortcut_hdr - { - DWORD size; /* Header size in bytes. Must contain 0x4c. */ - GUID magic; /* GUID of shortcut files. */ - DWORD flags; /* Content flags. See above. */ - - /* The next fields from attr to icon_no are always set to 0 in Cygwin - and U/Win shortcuts. */ - DWORD attr; /* Target file attributes. */ - FILETIME ctime; /* These filetime items are never touched by the */ - FILETIME mtime; /* system, apparently. Values don't matter. */ - FILETIME atime; - DWORD filesize; /* Target filesize. */ - DWORD icon_no; /* Icon number. */ - - DWORD run; /* Values defined in winuser.h. Use SW_NORMAL. */ - DWORD hotkey; /* Hotkey value. Set to 0. */ - DWORD dummy[2]; /* Future extension probably. Always 0. */ - }; - -/* Return non-zero if PATH1 is a prefix of PATH2. - Both are assumed to be of the same path style and / vs \ usage. - Neither may be "". - LEN1 = strlen (PATH1). It's passed because often it's already known. - - Examples: - /foo/ is a prefix of /foo <-- may seem odd, but desired - /foo is a prefix of /foo/ - / is a prefix of /foo/bar - / is not a prefix of foo/bar - foo/ is a prefix foo/bar - /foo is not a prefix of /foobar -*/ - -int -path_prefix_p (const char *path1, const char *path2, int len1, - bool caseinsensitive) -{ - /* Handle case where PATH1 has trailing '/' and when it doesn't. */ - if (len1 > 0 && isdirsep (path1[len1 - 1])) - len1--; - - if (len1 == 0) - return isdirsep (path2[0]) && !isdirsep (path2[1]); - - if (isdirsep (path2[len1]) || path2[len1] == 0 || path1[len1 - 1] == ':') - return caseinsensitive ? strncasematch (path1, path2, len1) - : !strncmp (path1, path2, len1); - - return 0; -} - -/* Return non-zero if paths match in first len chars. - Check is dependent of the case sensitivity setting. */ -int -pathnmatch (const char *path1, const char *path2, int len, bool caseinsensitive) -{ - return caseinsensitive - ? strncasematch (path1, path2, len) : !strncmp (path1, path2, len); -} - -/* Return non-zero if paths match. Check is dependent of the case - sensitivity setting. */ -int -pathmatch (const char *path1, const char *path2, bool caseinsensitive) -{ - return caseinsensitive - ? strcasematch (path1, path2) : !strcmp (path1, path2); -} - -/* TODO: This function is used in mkdir and rmdir to generate correct - error messages in case of paths ending in /. or /.. components. - Right now, normalize_posix_path will just normalize - those components away, which changes the semantics. */ -bool -has_dot_last_component (const char *dir, bool test_dot_dot) -{ - /* SUSv3: . and .. are not allowed as last components in various system - calls. Don't test for backslash path separator since that's a Win32 - path following Win32 rules. */ - const char *last_comp = strchr (dir, '\0'); - - if (last_comp == dir) - return false; /* Empty string. Probably shouldn't happen here? */ - - /* Detect run of trailing slashes */ - while (last_comp > dir && *--last_comp == '/') - continue; - - /* Detect just a run of slashes or a path that does not end with a slash. */ - if (*last_comp != '.') - return false; - - /* We know we have a trailing dot here. Check that it really is a standalone "." - path component by checking that it is at the beginning of the string or is - preceded by a "/" */ - if (last_comp == dir || *--last_comp == '/') - return true; - - /* If we're not checking for '..' we're done. Ditto if we're now pointing to - a non-dot. */ - if (!test_dot_dot || *last_comp != '.') - return false; /* either not testing for .. or this was not '..' */ - - /* Repeat previous test for standalone or path component. */ - return last_comp == dir || last_comp[-1] == '/'; -} - -/* Normalize a POSIX path. - All duplicate /'s, except for 2 leading /'s, are deleted. - The result is 0 for success, or an errno error value. */ - -int -normalize_posix_path (const char *src, char *dst, char *&tail) -{ - const char *in_src = src; - char *dst_start = dst; - syscall_printf ("src %s", src); - - if ((isdrive (src) && isdirsep (src[2])) || *src == '\\') - goto win32_path; - - tail = dst; - if (!isslash (src[0])) - { - if (!cygheap->cwd.get (dst)) - return get_errno (); - tail = strchr (tail, '\0'); - if (isslash (dst[0]) && isslash (dst[1])) - ++dst_start; - if (*src == '.') - { - if (tail == dst_start + 1 && *dst_start == '/') - tail--; - goto sawdot; - } - if (tail > dst && !isslash (tail[-1])) - *tail++ = '/'; - } - /* Two leading /'s? If so, preserve them. */ - else if (isslash (src[1]) && !isslash (src[2])) - { - *tail++ = *src++; - ++dst_start; - } - - while (*src) - { - if (*src == '\\') - goto win32_path; - /* Strip runs of /'s. */ - if (!isslash (*src)) - *tail++ = *src++; - else - { - while (*++src) - { - if (isslash (*src)) - continue; - - if (*src != '.') - break; - - sawdot: - if (src[1] != '.') - { - if (!src[1]) - { - *tail++ = '/'; - goto done; - } - if (!isslash (src[1])) - break; - } - else if (src[2] && !isslash (src[2])) - break; - else - { - while (tail > dst_start && !isslash (*--tail)) - continue; - src++; - } - } - - *tail++ = '/'; - } - if ((tail - dst) >= NT_MAX_PATH) - { - debug_printf ("ENAMETOOLONG = normalize_posix_path (%s)", src); - return ENAMETOOLONG; - } - } - -done: - *tail = '\0'; - - debug_printf ("%s = normalize_posix_path (%s)", dst, in_src); - return 0; - -win32_path: - int err = normalize_win32_path (in_src, dst, tail); - if (!err) - for (char *p = dst; (p = strchr (p, '\\')); p++) - *p = '/'; - return err ?: -1; -} - -inline void -path_conv::add_ext_from_sym (symlink_info &sym) -{ - if (sym.ext_here && *sym.ext_here) - { - known_suffix = path + sym.extn; - if (sym.ext_tacked_on) - strcpy ((char *) known_suffix, sym.ext_here); - } -} - -static void __stdcall mkrelpath (char *dst, bool caseinsensitive) - __attribute__ ((regparm (2))); - -static void __stdcall -mkrelpath (char *path, bool caseinsensitive) -{ - tmp_pathbuf tp; - char *cwd_win32 = tp.c_get (); - if (!cygheap->cwd.get (cwd_win32, 0)) - return; - - unsigned cwdlen = strlen (cwd_win32); - if (!path_prefix_p (cwd_win32, path, cwdlen, caseinsensitive)) - return; - - size_t n = strlen (path); - if (n < cwdlen) - return; - - char *tail = path; - if (n == cwdlen) - tail += cwdlen; - else - tail += isdirsep (cwd_win32[cwdlen - 1]) ? cwdlen : cwdlen + 1; - - memmove (path, tail, strlen (tail) + 1); - if (!*path) - strcpy (path, "."); -} - -void -path_conv::fillin (HANDLE h) -{ - IO_STATUS_BLOCK io; - FILE_BASIC_INFORMATION fbi; - - if (NT_SUCCESS (NtQueryInformationFile (h, &io, &fbi, sizeof fbi, - FileBasicInformation))) - fileattr = fbi.FileAttributes; - else - fileattr = INVALID_FILE_ATTRIBUTES; -} - -void -path_conv::set_normalized_path (const char *path_copy) -{ - if (path_copy) - { - size_t n = strlen (path_copy) + 1; - char *p = (char *) cmalloc_abort (HEAP_STR, n); - normalized_path = (const char *) memcpy (p, path_copy, n); - } -} - -static inline void -str2uni_cat (UNICODE_STRING &tgt, const char *srcstr) -{ - int len = sys_mbstowcs (tgt.Buffer + tgt.Length / sizeof (WCHAR), - (tgt.MaximumLength - tgt.Length) / sizeof (WCHAR), - srcstr); - if (len) - tgt.Length += (len - 1) * sizeof (WCHAR); -} - -PUNICODE_STRING -get_nt_native_path (const char *path, UNICODE_STRING& upath) -{ - upath.Length = 0; - if (path[0] == '/') /* special path w/o NT path representation. */ - str2uni_cat (upath, path); - else if (path[0] != '\\') /* X:\... or relative path. */ - { - if (path[1] == ':') /* X:\... */ - { - RtlAppendUnicodeStringToString (&upath, &ro_u_natp); - str2uni_cat (upath, path); - /* The drive letter must be upper case. */ - upath.Buffer[4] = towupper (upath.Buffer[4]); - } - else - str2uni_cat (upath, path); - transform_chars (&upath, 7); - } - else if (path[1] != '\\') /* \Device\... */ - str2uni_cat (upath, path); - else if ((path[2] != '.' && path[2] != '?') - || path[3] != '\\') /* \\server\share\... */ - { - RtlAppendUnicodeStringToString (&upath, &ro_u_uncp); - str2uni_cat (upath, path + 2); - transform_chars (&upath, 8); - } - else /* \\.\device or \\?\foo */ - { - RtlAppendUnicodeStringToString (&upath, &ro_u_natp); - str2uni_cat (upath, path + 4); - } - return &upath; -} - -PUNICODE_STRING -path_conv::get_nt_native_path () -{ - if (!wide_path) - { - uni_path.Length = 0; - uni_path.MaximumLength = (strlen (path) + 10) * sizeof (WCHAR); - wide_path = (PWCHAR) cmalloc_abort (HEAP_STR, uni_path.MaximumLength); - uni_path.Buffer = wide_path; - ::get_nt_native_path (path, uni_path); - } - return &uni_path; -} - -POBJECT_ATTRIBUTES -path_conv::get_object_attr (OBJECT_ATTRIBUTES &attr, SECURITY_ATTRIBUTES &sa) -{ - if (!get_nt_native_path ()) - return NULL; - InitializeObjectAttributes (&attr, &uni_path, - objcaseinsensitive () - | (sa.bInheritHandle ? OBJ_INHERIT : 0), - NULL, sa.lpSecurityDescriptor); - return &attr; -} - -PWCHAR -path_conv::get_wide_win32_path (PWCHAR wc) -{ - get_nt_native_path (); - if (!wide_path) - return NULL; - wcpcpy (wc, wide_path); - if (wc[1] == L'?') - wc[1] = L'\\'; - return wc; -} - -void -warn_msdos (const char *src) -{ - if (user_shared->warned_msdos || !dos_file_warning || !cygwin_finished_initializing) - return; - tmp_pathbuf tp; - char *posix_path = tp.c_get (); - small_printf ("cygwin warning:\n"); - if (cygwin_conv_path (CCP_WIN_A_TO_POSIX | CCP_RELATIVE, src, - posix_path, NT_MAX_PATH)) - small_printf (" MS-DOS style path detected: %s\n POSIX equivalent preferred.\n", - src); - else - small_printf (" MS-DOS style path detected: %s\n Preferred POSIX equivalent is: %s\n", - src, posix_path); - small_printf (" CYGWIN environment variable option \"nodosfilewarning\" turns off this warning.\n" - " Consult the user's guide for more details about POSIX paths:\n" - " http://cygwin.com/cygwin-ug-net/using.html#using-pathnames\n"); - user_shared->warned_msdos = true; -} - -static DWORD -getfileattr (const char *path, bool caseinsensitive) /* path has to be always absolute. */ -{ - tmp_pathbuf tp; - UNICODE_STRING upath; - OBJECT_ATTRIBUTES attr; - FILE_BASIC_INFORMATION fbi; - NTSTATUS status; - IO_STATUS_BLOCK io; - - tp.u_get (&upath); - InitializeObjectAttributes (&attr, &upath, - caseinsensitive ? OBJ_CASE_INSENSITIVE : 0, - NULL, NULL); - get_nt_native_path (path, upath); - - status = NtQueryAttributesFile (&attr, &fbi); - if (NT_SUCCESS (status)) - return fbi.FileAttributes; - - if (status != STATUS_OBJECT_NAME_NOT_FOUND - && status != STATUS_NO_SUCH_FILE) /* File not found on 9x share */ - { - /* File exists but access denied. Try to get attribute through - directory query. */ - UNICODE_STRING dirname, basename; - HANDLE dir; - FILE_DIRECTORY_INFORMATION fdi; - - RtlSplitUnicodePath (&upath, &dirname, &basename); - InitializeObjectAttributes (&attr, &dirname, - caseinsensitive ? OBJ_CASE_INSENSITIVE : 0, - NULL, NULL); - status = NtOpenFile (&dir, SYNCHRONIZE | FILE_LIST_DIRECTORY, - &attr, &io, FILE_SHARE_VALID_FLAGS, - FILE_SYNCHRONOUS_IO_NONALERT - | FILE_OPEN_FOR_BACKUP_INTENT - | FILE_DIRECTORY_FILE); - if (NT_SUCCESS (status)) - { - status = NtQueryDirectoryFile (dir, NULL, NULL, 0, &io, - &fdi, sizeof fdi, - FileDirectoryInformation, - TRUE, &basename, TRUE); - NtClose (dir); - if (NT_SUCCESS (status) || status == STATUS_BUFFER_OVERFLOW) - return fdi.FileAttributes; - } - } - SetLastError (RtlNtStatusToDosError (status)); - return INVALID_FILE_ATTRIBUTES; -} - -/* Convert an arbitrary path SRC to a pure Win32 path, suitable for - passing to Win32 API routines. - - If an error occurs, `error' is set to the errno value. - Otherwise it is set to 0. - - follow_mode values: - SYMLINK_FOLLOW - convert to PATH symlink points to - SYMLINK_NOFOLLOW - convert to PATH of symlink itself - SYMLINK_IGNORE - do not check PATH for symlinks - SYMLINK_CONTENTS - just return symlink contents -*/ - -/* TODO: This implementation is only preliminary. For internal - purposes it's necessary to have a path_conv::check function which - takes a UNICODE_STRING src path, otherwise we waste a lot of time - for converting back and forth. The below implementation does - realy nothing but converting to char *, until path_conv handles - wide-char paths directly. */ -void -path_conv::check (const UNICODE_STRING *src, unsigned opt, - const suffix_info *suffixes) -{ - tmp_pathbuf tp; - char *path = tp.c_get (); - - user_shared->warned_msdos = true; - sys_wcstombs (path, NT_MAX_PATH, src->Buffer, src->Length / sizeof (WCHAR)); - path_conv::check (path, opt, suffixes); -} - -void -path_conv::check (const char *src, unsigned opt, - const suffix_info *suffixes) -{ - /* The tmp_buf array is used when expanding symlinks. It is NT_MAX_PATH * 2 - in length so that we can hold the expanded symlink plus a trailer. */ - tmp_pathbuf tp; - char *path_copy = tp.c_get (); - char *pathbuf = tp.c_get (); - char *tmp_buf = tp.t_get (); - char *THIS_path = tp.c_get (); - symlink_info sym; - bool need_directory = 0; - bool saw_symlinks = 0; - bool add_ext = false; - bool is_relpath; - char *tail, *path_end; - -#if 0 - static path_conv last_path_conv; - static char last_src[CYG_MAX_PATH]; - - if (*last_src && strcmp (last_src, src) == 0) - { - *this = last_path_conv; - return; - } -#endif - - myfault efault; - if (efault.faulted ()) - { - error = EFAULT; - return; - } - int loop = 0; - path_flags = 0; - known_suffix = NULL; - fileattr = INVALID_FILE_ATTRIBUTES; - caseinsensitive = OBJ_CASE_INSENSITIVE; - if (wide_path) - cfree (wide_path); - wide_path = NULL; - if (path) - { - cfree (modifiable_path ()); - path = NULL; - } - memset (&dev, 0, sizeof (dev)); - fs.clear (); - if (normalized_path) - { - cfree ((void *) normalized_path); - normalized_path = NULL; - } - int component = 0; // Number of translated components - - if (!(opt & PC_NULLEMPTY)) - error = 0; - else if (!*src) - { - error = ENOENT; - return; - } - - bool is_msdos = false; - /* This loop handles symlink expansion. */ - for (;;) - { - MALLOC_CHECK; - assert (src); - - is_relpath = !isabspath (src); - error = normalize_posix_path (src, path_copy, tail); - if (error > 0) - return; - if (error < 0) - { - if (component == 0) - is_msdos = true; - error = 0; - } - - /* Detect if the user was looking for a directory. We have to strip the - trailing slash initially while trying to add extensions but take it - into account during processing */ - if (tail > path_copy + 2 && isslash (tail[-1])) - { - need_directory = 1; - *--tail = '\0'; - } - path_end = tail; - - /* Scan path_copy from right to left looking either for a symlink - or an actual existing file. If an existing file is found, just - return. If a symlink is found, exit the for loop. - Also: be careful to preserve the errno returned from - symlink.check as the caller may need it. */ - /* FIXME: Do we have to worry about multiple \'s here? */ - component = 0; // Number of translated components - sym.contents[0] = '\0'; - - int symlen = 0; - - for (unsigned pflags_or = opt & PC_NO_ACCESS_CHECK; ; pflags_or = 0) - { - const suffix_info *suff; - char *full_path; - - /* Don't allow symlink.check to set anything in the path_conv - class if we're working on an inner component of the path */ - if (component) - { - suff = NULL; - sym.pflags = 0; - full_path = pathbuf; - } - else - { - suff = suffixes; - sym.pflags = path_flags; - full_path = THIS_path; - } - - /* Convert to native path spec sans symbolic link info. */ - error = mount_table->conv_to_win32_path (path_copy, full_path, dev, - &sym.pflags); - - if (error) - return; - - sym.pflags |= pflags_or; - - if (dev.major == DEV_CYGDRIVE_MAJOR) - { - if (!component) - fileattr = FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_READONLY; - else - { - fileattr = getfileattr (THIS_path, - sym.pflags & MOUNT_NOPOSIX); - dev.devn = FH_FS; - } - goto out; - } - else if (dev == FH_DEV) - { - dev.devn = FH_FS; -#if 0 - fileattr = getfileattr (THIS_path, sym.pflags & MOUNT_NOPOSIX); - if (!component && fileattr == INVALID_FILE_ATTRIBUTES) - { - fileattr = FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_READONLY; - goto out; - } -#endif - } - else if (isvirtual_dev (dev.devn)) - { - /* FIXME: Calling build_fhandler here is not the right way to handle this. */ - fhandler_virtual *fh = (fhandler_virtual *) build_fh_dev (dev, path_copy); - int file_type = fh->exists (); - if (file_type == -2) - { - fh->fill_filebuf (); - symlen = sym.set (fh->get_filebuf ()); - } - delete fh; - switch (file_type) - { - case 1: - case 2: - if (component == 0) - fileattr = FILE_ATTRIBUTE_DIRECTORY; - break; - case -1: - if (component == 0) - fileattr = 0; - break; - case -2: /* /proc/self or /proc/<pid>/symlinks */ - goto is_virtual_symlink; - case -3: /* /proc/<pid>/fd/pipe:[] */ - if (component == 0) - { - fileattr = 0; - dev.parse (FH_PIPE); - } - break; - case -4: /* /proc/<pid>/fd/socket:[] */ - if (component == 0) - { - fileattr = 0; - dev.parse (FH_TCP); - } - break; - default: - if (component == 0) - fileattr = INVALID_FILE_ATTRIBUTES; - goto virtual_component_retry; - } - if (component == 0 || dev.devn != FH_NETDRIVE) - path_flags |= PATH_RO; - goto out; - } - /* devn should not be a device. If it is, then stop parsing now. */ - else if (dev.devn != FH_FS) - { - fileattr = 0; - path_flags = sym.pflags; - if (component) - { - error = ENOTDIR; - return; - } - goto out; /* Found a device. Stop parsing. */ - } - - /* If path is only a drivename, Windows interprets it as the - current working directory on this drive instead of the root - dir which is what we want. So we need the trailing backslash - in this case. */ - if (full_path[0] && full_path[1] == ':' && full_path[2] == '\0') - { - full_path[2] = '\\'; - full_path[3] = '\0'; - } - - symlen = sym.check (full_path, suff, opt, fs); - -is_virtual_symlink: - - if (sym.isdevice) - { - dev.parse (sym.major, sym.minor); - dev.setfs (1); - dev.mode = sym.mode; - fileattr = sym.fileattr; - goto out; - } - - if (sym.pflags & PATH_SOCKET) - { - if (component) - { - error = ENOTDIR; - return; - } - fileattr = sym.fileattr; - dev.parse (FH_UNIX); - dev.setfs (1); - goto out; - } - - if (!component) - { - fileattr = sym.fileattr; - path_flags = sym.pflags; - /* If the OS is caseinsensitive or the FS is caseinsensitive or - the incoming path was given in DOS notation, don't handle - path casesensitive. */ - if (cygwin_shared->obcaseinsensitive || fs.caseinsensitive () - || is_msdos) - path_flags |= PATH_NOPOSIX; - caseinsensitive = (path_flags & PATH_NOPOSIX) - ? OBJ_CASE_INSENSITIVE : 0; - } - - /* If symlink.check found an existing non-symlink file, then - it sets the appropriate flag. It also sets any suffix found - into `ext_here'. */ - if (!sym.issymlink && sym.fileattr != INVALID_FILE_ATTRIBUTES) - { - error = sym.error; - if (component == 0) - add_ext = true; - else if (!(sym.fileattr & FILE_ATTRIBUTE_DIRECTORY)) - { - error = ENOTDIR; - goto out; - } - goto out; // file found - } - /* Found a symlink if symlen > 0. If component == 0, then the - src path itself was a symlink. If !follow_mode then - we're done. Otherwise we have to insert the path found - into the full path that we are building and perform all of - these operations again on the newly derived path. */ - else if (symlen > 0) - { - saw_symlinks = 1; - if (component == 0 && !need_directory && !(opt & PC_SYM_FOLLOW)) - { - set_symlink (symlen); // last component of path is a symlink. - if (opt & PC_SYM_CONTENTS) - { - strcpy (THIS_path, sym.contents); - goto out; - } - add_ext = true; - goto out; - } - else - break; - } - else if (sym.error && sym.error != ENOENT) - { - error = sym.error; - goto out; - } - /* No existing file found. */ - -virtual_component_retry: - /* Find the new "tail" of the path, e.g. in '/for/bar/baz', - /baz is the tail. */ - if (tail != path_end) - *tail = '/'; - while (--tail > path_copy + 1 && *tail != '/') {} - /* Exit loop if there is no tail or we are at the - beginning of a UNC path */ - if (tail <= path_copy + 1) - goto out; // all done - - /* Haven't found an existing pathname component yet. - Pinch off the tail and try again. */ - *tail = '\0'; - component++; - } - - /* Arrive here if above loop detected a symlink. */ - if (++loop > SYMLOOP_MAX) - { - error = ELOOP; // Eep. - return; - } - - MALLOC_CHECK; - - - /* Place the link content, possibly with head and/or tail, in tmp_buf */ - - char *headptr; - if (isabspath (sym.contents)) - headptr = tmp_buf; /* absolute path */ - else - { - /* Copy the first part of the path (with ending /) and point to the end. */ - char *prevtail = tail; - while (--prevtail > path_copy && *prevtail != '/') {} - int headlen = prevtail - path_copy + 1;; - memcpy (tmp_buf, path_copy, headlen); - headptr = &tmp_buf[headlen]; - } - - /* Make sure there is enough space */ - if (headptr + symlen >= tmp_buf + (2 * NT_MAX_PATH)) - { - too_long: - error = ENAMETOOLONG; - set_path ("::ENAMETOOLONG::"); - return; - } - - /* Copy the symlink contents to the end of tmp_buf. - Convert slashes. */ - for (char *p = sym.contents; *p; p++) - *headptr++ = *p == '\\' ? '/' : *p; - *headptr = '\0'; - - /* Copy any tail component (with the 0) */ - if (tail++ < path_end) - { - /* Add a slash if needed. There is space. */ - if (*(headptr - 1) != '/') - *headptr++ = '/'; - int taillen = path_end - tail + 1; - if (headptr + taillen > tmp_buf + (2 * NT_MAX_PATH)) - goto too_long; - memcpy (headptr, tail, taillen); - } - - /* Evaluate everything all over again. */ - src = tmp_buf; - } - - if (!(opt & PC_SYM_CONTENTS)) - add_ext = true; - -out: - set_path (THIS_path); - if (add_ext) - add_ext_from_sym (sym); - if (dev.devn == FH_NETDRIVE && component) - { - /* This case indicates a non-existant resp. a non-retrievable - share. This happens for instance if the share is a printer. - In this case the path must not be treated like a FH_NETDRIVE, - but like a FH_FS instead, so the usual open call for files - is used on it. */ - dev.parse (FH_FS); - } - else if (isvirtual_dev (dev.devn) && fileattr == INVALID_FILE_ATTRIBUTES) - { - error = ENOENT; - return; - } - else if (!need_directory || error) - /* nothing to do */; - else if (fileattr == INVALID_FILE_ATTRIBUTES) - strcat (modifiable_path (), "\\"); /* Reattach trailing dirsep in native path. */ - else if (fileattr & FILE_ATTRIBUTE_DIRECTORY) - path_flags &= ~PATH_SYMLINK; - else - { - debug_printf ("%s is a non-directory", path); - error = ENOTDIR; - return; - } - - if (dev.isfs ()) - { - if (strncmp (path, "\\\\.\\", 4)) - { - if (!tail || tail == path) - /* nothing */; - else if (tail[-1] != '\\') - *tail = '\0'; - else - { - error = ENOENT; - return; - } - } - - /* FS has been checked already for existing files. */ - if (exists () || fs.update (get_nt_native_path (), NULL)) - { - /* Incoming DOS paths are treated like DOS paths in native - Windows applications. No ACLs, just default settings. */ - if (is_msdos) - fs.has_acls (false); - debug_printf ("this->path(%s), has_acls(%d)", path, fs.has_acls ()); - /* CV: We could use this->has_acls() but I want to make sure that - we don't forget that the PATH_NOACL flag must be taken into - account here. */ - if (!(path_flags & PATH_NOACL) && fs.has_acls ()) - set_exec (0); /* We really don't know if this is executable or not here - but set it to not executable since it will be figured out - later by anything which cares about this. */ - } - if (exec_state () != dont_know_if_executable) - /* ok */; - else if (isdir ()) - set_exec (1); - else if (issymlink () || issocket ()) - set_exec (0); - } - - if (opt & PC_NOFULL) - { - if (is_relpath) - { - mkrelpath (this->modifiable_path (), !!caseinsensitive); - /* Invalidate wide_path so that wide relpath can be created - in later calls to get_nt_native_path or get_wide_win32_path. */ - if (wide_path) - cfree (wide_path); - wide_path = NULL; - } - if (need_directory) - { - size_t n = strlen (this->path); - /* Do not add trailing \ to UNC device names like \\.\a: */ - if (this->path[n - 1] != '\\' && - (strncmp (this->path, "\\\\.\\", 4) != 0)) - { - this->modifiable_path ()[n] = '\\'; - this->modifiable_path ()[n + 1] = '\0'; - } - } - } - - if (saw_symlinks) - set_has_symlinks (); - - if ((opt & PC_POSIX)) - { - if (tail < path_end && tail > path_copy + 1) - *tail = '/'; - set_normalized_path (path_copy); - if (is_msdos && !(opt & PC_NOWARN)) - warn_msdos (src); - } - -#if 0 - if (!error) - { - last_path_conv = *this; - strcpy (last_src, src); - } -#endif -} - -path_conv::~path_conv () -{ - if (normalized_path) - { - cfree ((void *) normalized_path); - normalized_path = NULL; - } - if (path) - { - cfree (modifiable_path ()); - path = NULL; - } - if (wide_path) - { - cfree (wide_path); - wide_path = NULL; - } -} - -bool -path_conv::is_binary () -{ - tmp_pathbuf tp; - PWCHAR bintest = tp.w_get (); - DWORD bin; - - return GetBinaryTypeW (get_wide_win32_path (bintest), &bin) - && (bin == SCS_32BIT_BINARY || bin == SCS_64BIT_BINARY); -} - -/* Normalize a Win32 path. - /'s are converted to \'s in the process. - All duplicate \'s, except for 2 leading \'s, are deleted. - - The result is 0 for success, or an errno error value. - FIXME: A lot of this should be mergeable with the POSIX critter. */ -int -normalize_win32_path (const char *src, char *dst, char *&tail) -{ - const char *src_start = src; - bool beg_src_slash = isdirsep (src[0]); - - tail = dst; - /* Skip long path name prefixes in Win32 or NT syntax. */ - if (beg_src_slash && (src[1] == '?' || isdirsep (src[1])) - && src[2] == '?' && isdirsep (src[3])) - { - src += 4; - if (src[1] != ':') /* native UNC path */ - src += 2; /* Fortunately the first char is not copied... */ - else - beg_src_slash = false; - } - if (beg_src_slash && isdirsep (src[1])) - { - if (isdirsep (src[2])) - { - /* More than two slashes are just folded into one. */ - src += 2; - while (isdirsep (src[1])) - ++src; - } - else - { - /* Two slashes start a network or device path. */ - *tail++ = '\\'; - src++; - if (src[1] == '.' && isdirsep (src[2])) - { - *tail++ = '\\'; - *tail++ = '.'; - src += 2; - } - } - } - if (tail == dst) - { - if (isdrive (src)) - /* Always convert drive letter to uppercase for case sensitivity. */ - *tail++ = cyg_toupper (*src++); - else if (*src != '/') - { - if (beg_src_slash) - tail += cygheap->cwd.get_drive (dst); - else if (!cygheap->cwd.get (dst, 0)) - return get_errno (); - else - { - tail = strchr (tail, '\0'); - if (tail[-1] != '\\') - *tail++ = '\\'; - } - } - } - - while (*src) - { - /* Strip duplicate /'s. */ - if (isdirsep (src[0]) && isdirsep (src[1])) - src++; - /* Ignore "./". */ - else if (src[0] == '.' && isdirsep (src[1]) - && (src == src_start || isdirsep (src[-1]))) - src += 2; - - /* Backup if "..". */ - else if (src[0] == '.' && src[1] == '.' - /* dst must be greater than dst_start */ - && tail[-1] == '\\') - { - if (!isdirsep (src[2]) && src[2] != '\0') - *tail++ = *src++; - else - { - /* Back up over /, but not if it's the first one. */ - if (tail > dst + 1) - tail--; - /* Now back up to the next /. */ - while (tail > dst + 1 && tail[-1] != '\\' && tail[-2] != ':') - tail--; - src += 2; - if (isdirsep (*src)) - src++; - } - } - /* Otherwise, add char to result. */ - else - { - if (*src == '/') - *tail++ = '\\'; - else - *tail++ = *src; - src++; - } - if ((tail - dst) >= NT_MAX_PATH) - return ENAMETOOLONG; - } - if (tail > dst + 1 && tail[-1] == '.' && tail[-2] == '\\') - tail--; - *tail = '\0'; - debug_printf ("%s = normalize_win32_path (%s)", dst, src_start); - return 0; -} - -/* Various utilities. */ - -/* nofinalslash: Remove trailing / and \ from SRC (except for the - first one). It is ok for src == dst. */ - -void __stdcall -nofinalslash (const char *src, char *dst) -{ - int len = strlen (src); - if (src != dst) - memcpy (dst, src, len + 1); - while (len > 1 && isdirsep (dst[--len])) - dst[len] = '\0'; -} - -/* conv_path_list: Convert a list of path names to/from Win32/POSIX. */ - -static int -conv_path_list (const char *src, char *dst, size_t size, int to_posix) -{ - tmp_pathbuf tp; - char src_delim, dst_delim; - cygwin_conv_path_t conv_fn; - size_t len; - - if (to_posix) - { - src_delim = ';'; - dst_delim = ':'; - conv_fn = CCP_WIN_A_TO_POSIX | CCP_RELATIVE; - } - else - { - src_delim = ':'; - dst_delim = ';'; - conv_fn = CCP_POSIX_TO_WIN_A | CCP_RELATIVE; - } - - char *srcbuf; - len = strlen (src) + 1; - if (len <= NT_MAX_PATH * sizeof (WCHAR)) - srcbuf = (char *) tp.w_get (); - else - srcbuf = (char *) alloca (len); - - int err = 0; - char *d = dst - 1; - bool saw_empty = false; - do - { - char *s = strccpy (srcbuf, &src, src_delim); - size_t len = s - srcbuf; - if (len >= NT_MAX_PATH) - { - err = ENAMETOOLONG; - break; - } - if (len) - { - ++d; - err = cygwin_conv_path (conv_fn, srcbuf, d, size - (d - dst)); - } - else if (!to_posix) - { - ++d; - err = cygwin_conv_path (conv_fn, ".", d, size - (d - dst)); - } - else - { - if (to_posix == ENV_CVT) - saw_empty = true; - continue; - } - if (err) - break; - d = strchr (d, '\0'); - *d = dst_delim; - } - while (*src++); - - if (saw_empty) - err = EIDRM; - - if (d < dst) - d++; - *d = '\0'; - return err; -} - -/********************** Symbolic Link Support **************************/ - -/* Create a symlink from FROMPATH to TOPATH. */ - -/* If TRUE create symlinks as Windows shortcuts, if false create symlinks - as normal files with magic number and system bit set. */ -bool allow_winsymlinks = false; - -extern "C" int -symlink (const char *oldpath, const char *newpath) -{ - return symlink_worker (oldpath, newpath, allow_winsymlinks, false); -} - -int -symlink_worker (const char *oldpath, const char *newpath, bool use_winsym, - bool isdevice) -{ - int res = -1; - size_t len; - path_conv win32_newpath, win32_oldpath; - char *buf, *cp; - SECURITY_ATTRIBUTES sa = sec_none_nih; - OBJECT_ATTRIBUTES attr; - IO_STATUS_BLOCK io; - NTSTATUS status; - HANDLE fh; - tmp_pathbuf tp; - unsigned check_opt; - bool mk_winsym = use_winsym; - bool has_trailing_dirsep = false; - - /* POSIX says that empty 'newpath' is invalid input while empty - 'oldpath' is valid -- it's symlink resolver job to verify if - symlink contents point to existing filesystem object */ - myfault efault; - if (efault.faulted (EFAULT)) - goto done; - if (!*oldpath || !*newpath) - { - set_errno (ENOENT); - goto done; - } - - if (strlen (oldpath) > SYMLINK_MAX) - { - set_errno (ENAMETOOLONG); - goto done; - } - - /* Trailing dirsep is a no-no. */ - len = strlen (newpath); - has_trailing_dirsep = isdirsep (newpath[len - 1]); - if (has_trailing_dirsep) - { - newpath = strdup (newpath); - ((char *) newpath)[len - 1] = '\0'; - } - - check_opt = PC_SYM_NOFOLLOW | PC_POSIX | (isdevice ? PC_NOWARN : 0); - /* We need the normalized full path below. */ - win32_newpath.check (newpath, check_opt, stat_suffixes); - /* MVFS doesn't handle the SYSTEM DOS attribute, but it handles the R/O - attribute. Therefore we create symlinks on MVFS always as shortcuts. */ - mk_winsym |= win32_newpath.fs_is_mvfs (); - - if (mk_winsym && !win32_newpath.exists () - && (isdevice || !win32_newpath.fs_is_nfs ())) - { - char *newplnk = tp.c_get (); - stpcpy (stpcpy (newplnk, newpath), ".lnk"); - win32_newpath.check (newplnk, check_opt); - } - - if (win32_newpath.error) - { - set_errno (win32_newpath.error); - goto done; - } - - syscall_printf ("symlink (%s, %S)", oldpath, - win32_newpath.get_nt_native_path ()); - - if ((!isdevice && win32_newpath.exists ()) - || win32_newpath.is_auto_device ()) - { - set_errno (EEXIST); - goto done; - } - if (has_trailing_dirsep && !win32_newpath.exists ()) - { - set_errno (ENOENT); - goto done; - } - - if (!isdevice && win32_newpath.fs_is_nfs ()) - { - /* On NFS, create symlinks by calling NtCreateFile with an EA of type - NfsSymlinkTargetName containing ... the symlink target name. */ - PFILE_FULL_EA_INFORMATION pffei = (PFILE_FULL_EA_INFORMATION) tp.w_get (); - pffei->NextEntryOffset = 0; - pffei->Flags = 0; - pffei->EaNameLength = sizeof (NFS_SYML_TARGET) - 1; - char *EaValue = stpcpy (pffei->EaName, NFS_SYML_TARGET) + 1; - pffei->EaValueLength = sizeof (WCHAR) * - (sys_mbstowcs ((PWCHAR) EaValue, NT_MAX_PATH, oldpath) - 1); - status = NtCreateFile (&fh, FILE_WRITE_DATA | FILE_WRITE_EA | SYNCHRONIZE, - win32_newpath.get_object_attr (attr, sa), - &io, NULL, FILE_ATTRIBUTE_SYSTEM, - FILE_SHARE_VALID_FLAGS, FILE_CREATE, - FILE_SYNCHRONOUS_IO_NONALERT - | FILE_OPEN_FOR_BACKUP_INTENT, - pffei, NT_MAX_PATH * sizeof (WCHAR)); - if (!NT_SUCCESS (status)) - { - __seterrno_from_nt_status (status); - goto done; - } - NtClose (fh); - res = 0; - goto done; - } - - if (mk_winsym) - { - ITEMIDLIST *pidl = NULL; - size_t full_len = 0; - unsigned short oldpath_len, desc_len, relpath_len, pidl_len = 0; - char desc[MAX_PATH + 1], *relpath; - - if (!isdevice) - { - /* First create an IDLIST to learn how big our shortcut is - going to be. */ - IShellFolder *psl; - - /* The symlink target is relative to the directory in which - the symlink gets created, not relative to the cwd. Therefore - we have to mangle the path quite a bit before calling path_conv. */ - if (isabspath (oldpath)) - win32_oldpath.check (oldpath, - PC_SYM_NOFOLLOW, - stat_suffixes); - else - { - len = strrchr (win32_newpath.normalized_path, '/') - - win32_newpath.normalized_path + 1; - char *absoldpath = tp.t_get (); - stpcpy (stpncpy (absoldpath, win32_newpath.normalized_path, len), - oldpath); - win32_oldpath.check (absoldpath, PC_SYM_NOFOLLOW, stat_suffixes); - } - if (SUCCEEDED (SHGetDesktopFolder (&psl))) - { - WCHAR wc_path[win32_oldpath.get_wide_win32_path_len () + 1]; - win32_oldpath.get_wide_win32_path (wc_path); - /* Amazing but true: Even though the ParseDisplayName method - takes a wide char path name, it does not understand the - Win32 prefix for long pathnames! So we have to tack off - the prefix and convert the path to the "normal" syntax - for ParseDisplayName. */ - WCHAR *wc = wc_path + 4; - if (wc[1] != L':') /* native UNC path */ - *(wc += 2) = L'\\'; - HRESULT res; - if (SUCCEEDED (res = psl->ParseDisplayName (NULL, NULL, wc, NULL, - &pidl, NULL))) - { - ITEMIDLIST *p; - - for (p = pidl; p->mkid.cb > 0; - p = (ITEMIDLIST *)((char *) p + p->mkid.cb)) - ; - pidl_len = (char *) p - (char *) pidl + 2; - } - psl->Release (); - } - } - /* Compute size of shortcut file. */ - full_len = sizeof (win_shortcut_hdr); - if (pidl_len) - full_len += sizeof (unsigned short) + pidl_len; - oldpath_len = strlen (oldpath); - /* Unfortunately the length of the description is restricted to a - length of MAX_PATH up to NT4, and to a length of 2000 bytes - since W2K. We don't want to add considerations for the different - lengths and even 2000 bytes is not enough for long path names. - So what we do here is to set the description to the POSIX path - only if the path is not longer than MAX_PATH characters. We - append the full path name after the regular shortcut data - (see below), which works fine with Windows Explorer as well - as older Cygwin versions (as long as the whole file isn't bigger - than 8K). The description field is only used for backward - compatibility to older Cygwin versions and those versions are - not capable of handling long path names anyway. */ - desc_len = stpcpy (desc, oldpath_len > MAX_PATH - ? "[path too long]" : oldpath) - desc; - full_len += sizeof (unsigned short) + desc_len; - /* Devices get the oldpath string unchanged as relative path. */ - if (isdevice) - { - relpath_len = oldpath_len; - stpcpy (relpath = tp.c_get (), oldpath); - } - else - { - relpath_len = strlen (win32_oldpath.get_win32 ()); - stpcpy (relpath = tp.c_get (), win32_oldpath.get_win32 ()); - } - full_len += sizeof (unsigned short) + relpath_len; - full_len += sizeof (unsigned short) + oldpath_len; - /* 1 byte more for trailing 0 written by stpcpy. */ - if (full_len < NT_MAX_PATH * sizeof (WCHAR)) - buf = (char *) tp.w_get (); - else - buf = (char *) alloca (full_len + 1); - - /* Create shortcut header */ - win_shortcut_hdr *shortcut_header = (win_shortcut_hdr *) buf; - memset (shortcut_header, 0, sizeof *shortcut_header); - shortcut_header->size = sizeof *shortcut_header; - shortcut_header->magic = GUID_shortcut; - shortcut_header->flags = (WSH_FLAG_DESC | WSH_FLAG_RELPATH); - if (pidl) - shortcut_header->flags |= WSH_FLAG_IDLIST; - shortcut_header->run = SW_NORMAL; - cp = buf + sizeof (win_shortcut_hdr); - - /* Create IDLIST */ - if (pidl) - { - *(unsigned short *)cp = pidl_len; - memcpy (cp += 2, pidl, pidl_len); - cp += pidl_len; - CoTaskMemFree (pidl); - } - - /* Create description */ - *(unsigned short *)cp = desc_len; - cp = stpcpy (cp += 2, desc); - - /* Create relpath */ - *(unsigned short *)cp = relpath_len; - cp = stpcpy (cp += 2, relpath); - - /* Append the POSIX path after the regular shortcut data for - the long path support. */ - unsigned short *plen = (unsigned short *) cp; - cp += 2; - *(PWCHAR) cp = 0xfeff; /* BOM */ - cp += 2; - *plen = sys_mbstowcs ((PWCHAR) cp, NT_MAX_PATH, oldpath) * sizeof (WCHAR); - cp += *plen; - } - else - { - /* Default technique creating a symlink. */ - buf = (char *) tp.w_get (); - cp = stpcpy (buf, SYMLINK_COOKIE); - *(PWCHAR) cp = 0xfeff; /* BOM */ - cp += 2; - /* Note that the terminating nul is written. */ - cp += sys_mbstowcs ((PWCHAR) cp, NT_MAX_PATH, oldpath) * sizeof (WCHAR); - } - - if (isdevice && win32_newpath.exists ()) - { - status = NtOpenFile (&fh, FILE_WRITE_ATTRIBUTES, - win32_newpath.get_object_attr (attr, sa), - &io, 0, FILE_OPEN_FOR_BACKUP_INTENT); - if (!NT_SUCCESS (status)) - { - __seterrno_from_nt_status (status); - goto done; - } - status = NtSetAttributesFile (fh, FILE_ATTRIBUTE_NORMAL); - NtClose (fh); - if (!NT_SUCCESS (status)) - { - __seterrno_from_nt_status (status); - goto done; - } - } - status = NtCreateFile (&fh, DELETE | FILE_GENERIC_WRITE, - win32_newpath.get_object_attr (attr, sa), - &io, NULL, FILE_ATTRIBUTE_NORMAL, - FILE_SHARE_VALID_FLAGS, - isdevice ? FILE_OVERWRITE_IF : FILE_CREATE, - FILE_SYNCHRONOUS_IO_NONALERT - | FILE_NON_DIRECTORY_FILE - | FILE_OPEN_FOR_BACKUP_INTENT, - NULL, 0); - if (!NT_SUCCESS (status)) - { - __seterrno_from_nt_status (status); - goto done; - } - if (win32_newpath.has_acls ()) - set_file_attribute (fh, win32_newpath, ILLEGAL_UID, ILLEGAL_GID, - (io.Information == FILE_CREATED ? S_JUSTCREATED : 0) - | S_IFLNK | STD_RBITS | STD_WBITS); - status = NtWriteFile (fh, NULL, NULL, NULL, &io, buf, cp - buf, NULL, NULL); - if (NT_SUCCESS (status) && io.Information == (ULONG) (cp - buf)) - { - status = NtSetAttributesFile (fh, mk_winsym ? FILE_ATTRIBUTE_READONLY - : FILE_ATTRIBUTE_SYSTEM); - if (!NT_SUCCESS (status)) - debug_printf ("Setting attributes failed, status = %p", status); - res = 0; - } - else - { - __seterrno_from_nt_status (status); - FILE_DISPOSITION_INFORMATION fdi = { TRUE }; - status = NtSetInformationFile (fh, &io, &fdi, sizeof fdi, - FileDispositionInformation); - if (!NT_SUCCESS (status)) - debug_printf ("Setting delete dispostion failed, status = %p", status); - } - NtClose (fh); - -done: - syscall_printf ("%d = symlink_worker (%s, %s, %d, %d)", res, oldpath, - newpath, mk_winsym, isdevice); - if (has_trailing_dirsep) - free ((void *) newpath); - return res; -} - -static bool -cmp_shortcut_header (win_shortcut_hdr *file_header) -{ - /* A Cygwin or U/Win shortcut only contains a description and a relpath. - Cygwin shortcuts also might contain an ITEMIDLIST. The run type is - always set to SW_NORMAL. */ - return file_header->size == sizeof (win_shortcut_hdr) - && !memcmp (&file_header->magic, &GUID_shortcut, sizeof GUID_shortcut) - && (file_header->flags & ~WSH_FLAG_IDLIST) - == (WSH_FLAG_DESC | WSH_FLAG_RELPATH) - && file_header->run == SW_NORMAL; -} - -int -symlink_info::check_shortcut (HANDLE in_h) -{ - tmp_pathbuf tp; - win_shortcut_hdr *file_header; - char *buf, *cp; - unsigned short len; - int res = 0; - UNICODE_STRING same = { 0, 0, (PWCHAR) L"" }; - OBJECT_ATTRIBUTES attr; - NTSTATUS status; - HANDLE h; - IO_STATUS_BLOCK io; - FILE_STANDARD_INFORMATION fsi; - - InitializeObjectAttributes (&attr, &same, 0, in_h, NULL); - status = NtOpenFile (&h, FILE_READ_DATA | SYNCHRONIZE, - &attr, &io, FILE_SHARE_VALID_FLAGS, - FILE_OPEN_FOR_BACKUP_INTENT - | FILE_SYNCHRONOUS_IO_NONALERT); - if (!NT_SUCCESS (status)) - return 0; - status = NtQueryInformationFile (h, &io, &fsi, sizeof fsi, - FileStandardInformation); - if (!NT_SUCCESS (status)) - { - set_error (EIO); - goto out; - } - if (fsi.EndOfFile.QuadPart <= sizeof (win_shortcut_hdr) - || fsi.EndOfFile.QuadPart > 4 * 65536) - goto out; - if (fsi.EndOfFile.LowPart < NT_MAX_PATH * sizeof (WCHAR)) - buf = (char *) tp.w_get (); - else - buf = (char *) alloca (fsi.EndOfFile.LowPart + 1); - if (!NT_SUCCESS (NtReadFile (h, NULL, NULL, NULL, - &io, buf, fsi.EndOfFile.LowPart, NULL, NULL))) - { - set_error (EIO); - goto out; - } - file_header = (win_shortcut_hdr *) buf; - if (io.Information != fsi.EndOfFile.LowPart - || !cmp_shortcut_header (file_header)) - goto out; - cp = buf + sizeof (win_shortcut_hdr); - if (file_header->flags & WSH_FLAG_IDLIST) /* Skip ITEMIDLIST */ - cp += *(unsigned short *) cp + 2; - if (!(len = *(unsigned short *) cp)) - goto out; - cp += 2; - /* Check if this is a device file - these start with the sequence :\\ */ - if (strncmp (cp, ":\\", 2) == 0) - res = strlen (strcpy (contents, cp)); /* Don't mess with device files */ - else - { - /* Has appended full path? If so, use it instead of description. */ - unsigned short relpath_len = *(unsigned short *) (cp + len); - if (cp + len + 2 + relpath_len < buf + fsi.EndOfFile.LowPart) - { - cp += len + 2 + relpath_len; - len = *(unsigned short *) cp; - cp += 2; - } - if (*(PWCHAR) cp == 0xfeff) /* BOM */ - { - char *tmpbuf = tp.c_get (); - if (sys_wcstombs (tmpbuf, NT_MAX_PATH, (PWCHAR) (cp + 2)) - > SYMLINK_MAX + 1) - goto out; - res = posixify (tmpbuf); - } - else if (len > SYMLINK_MAX) - goto out; - else - { - cp[len] = '\0'; - res = posixify (cp); - } - } - if (res) /* It's a symlink. */ - pflags = PATH_SYMLINK | PATH_LNK; - -out: - NtClose (h); - return res; -} - -int -symlink_info::check_sysfile (HANDLE in_h) -{ - tmp_pathbuf tp; - char cookie_buf[sizeof (SYMLINK_COOKIE) - 1]; - char *srcbuf = tp.c_get (); - int res = 0; - UNICODE_STRING same = { 0, 0, (PWCHAR) L"" }; - OBJECT_ATTRIBUTES attr; - NTSTATUS status; - HANDLE h; - IO_STATUS_BLOCK io; - bool interix_symlink = false; - - InitializeObjectAttributes (&attr, &same, 0, in_h, NULL); - status = NtOpenFile (&h, FILE_READ_DATA | SYNCHRONIZE, - &attr, &io, FILE_SHARE_VALID_FLAGS, - FILE_OPEN_FOR_BACKUP_INTENT - | FILE_SYNCHRONOUS_IO_NONALERT); - if (!NT_SUCCESS (status)) - ; - else if (!NT_SUCCESS (status = NtReadFile (h, NULL, NULL, NULL, &io, - cookie_buf, sizeof (cookie_buf), - NULL, NULL))) - { - debug_printf ("ReadFile1 failed"); - if (status != STATUS_END_OF_FILE) - set_error (EIO); - } - else if (io.Information == sizeof (cookie_buf) - && memcmp (cookie_buf, SYMLINK_COOKIE, sizeof (cookie_buf)) == 0) - { - /* It's a symlink. */ - pflags = PATH_SYMLINK; - } - else if (io.Information == sizeof (cookie_buf) - && memcmp (cookie_buf, SOCKET_COOKIE, sizeof (cookie_buf)) == 0) - pflags |= PATH_SOCKET; - else if (io.Information >= sizeof (INTERIX_SYMLINK_COOKIE) - && memcmp (cookie_buf, INTERIX_SYMLINK_COOKIE, - sizeof (INTERIX_SYMLINK_COOKIE) - 1) == 0) - { - /* It's an Interix symlink. */ - pflags = PATH_SYMLINK; - interix_symlink = true; - /* Interix symlink cookies are shorter than Cygwin symlink cookies, so - in case of an Interix symlink cooky we have read too far into the - file. Set file pointer back to the position right after the cookie. */ - FILE_POSITION_INFORMATION fpi; - fpi.CurrentByteOffset.QuadPart = sizeof (INTERIX_SYMLINK_COOKIE) - 1; - NtSetInformationFile (h, &io, &fpi, sizeof fpi, FilePositionInformation); - } - if (pflags == PATH_SYMLINK) - { - status = NtReadFile (h, NULL, NULL, NULL, &io, srcbuf, - NT_MAX_PATH, NULL, NULL); - if (!NT_SUCCESS (status)) - { - debug_printf ("ReadFile2 failed"); - if (status != STATUS_END_OF_FILE) - set_error (EIO); - } - else if (*(PWCHAR) srcbuf == 0xfeff /* BOM */ - || interix_symlink) - { - /* Add trailing 0 to Interix symlink target. Skip BOM in Cygwin - symlinks. */ - if (interix_symlink) - ((PWCHAR) srcbuf)[io.Information / sizeof (WCHAR)] = L'\0'; - else - srcbuf += 2; - char *tmpbuf = tp.c_get (); - if (sys_wcstombs (tmpbuf, NT_MAX_PATH, (PWCHAR) srcbuf) - > SYMLINK_MAX + 1) - debug_printf ("symlink string too long"); - else - res = posixify (tmpbuf); - } - else if (io.Information > SYMLINK_MAX + 1) - debug_printf ("symlink string too long"); - else - res = posixify (srcbuf); - } - NtClose (h); - return res; -} - -int -symlink_info::check_reparse_point (HANDLE h) -{ - tmp_pathbuf tp; - NTSTATUS status; - IO_STATUS_BLOCK io; - PREPARSE_DATA_BUFFER rp = (PREPARSE_DATA_BUFFER) tp.c_get (); - UNICODE_STRING subst; - char srcbuf[SYMLINK_MAX + 7]; - - status = NtFsControlFile (h, NULL, NULL, NULL, &io, FSCTL_GET_REPARSE_POINT, - NULL, 0, (LPVOID) rp, - MAXIMUM_REPARSE_DATA_BUFFER_SIZE); - if (!NT_SUCCESS (status)) - { - debug_printf ("NtFsControlFile(FSCTL_GET_REPARSE_POINT) failed, %p", - status); - set_error (EIO); - return 0; - } - if (rp->ReparseTag == IO_REPARSE_TAG_SYMLINK) - RtlInitCountedUnicodeString (&subst, - (WCHAR *)((char *)rp->SymbolicLinkReparseBuffer.PathBuffer - + rp->SymbolicLinkReparseBuffer.SubstituteNameOffset), - rp->SymbolicLinkReparseBuffer.SubstituteNameLength); - else if (rp->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) - { - RtlInitCountedUnicodeString (&subst, - (WCHAR *)((char *)rp->MountPointReparseBuffer.PathBuffer - + rp->MountPointReparseBuffer.SubstituteNameOffset), - rp->MountPointReparseBuffer.SubstituteNameLength); - if (RtlEqualUnicodePathPrefix (&subst, &ro_u_volume, TRUE)) - { - /* Volume mount point. Not treated as symlink. The return - value of -1 is a hint for the caller to treat this as a - volume mount point. */ - return -1; - } - } - else - { - /* Maybe it's a reparse point, but it's certainly not one we - recognize. Drop the REPARSE file attribute so we don't even - try to use the flag for some special handling. It's just some - arbitrary file or directory for us. */ - fileattr &= ~FILE_ATTRIBUTE_REPARSE_POINT; - return 0; - } - sys_wcstombs (srcbuf, SYMLINK_MAX + 7, subst.Buffer, - subst.Length / sizeof (WCHAR)); - pflags = PATH_SYMLINK | PATH_REP; - fileattr &= ~FILE_ATTRIBUTE_DIRECTORY; - return posixify (srcbuf); -} - -int -symlink_info::check_nfs_symlink (HANDLE h) -{ - tmp_pathbuf tp; - NTSTATUS status; - IO_STATUS_BLOCK io; - struct { - FILE_GET_EA_INFORMATION fgei; - char buf[sizeof (NFS_SYML_TARGET)]; - } fgei_buf; - PFILE_FULL_EA_INFORMATION pffei; - int res = 0; - - /* To find out if the file is a symlink and to get the symlink target, - try to fetch the NfsSymlinkTargetName EA. */ - fgei_buf.fgei.NextEntryOffset = 0; - fgei_buf.fgei.EaNameLength = sizeof (NFS_SYML_TARGET) - 1; - stpcpy (fgei_buf.fgei.EaName, NFS_SYML_TARGET); - pffei = (PFILE_FULL_EA_INFORMATION) tp.w_get (); - status = NtQueryEaFile (h, &io, pffei, NT_MAX_PATH * sizeof (WCHAR), TRUE, - &fgei_buf.fgei, sizeof fgei_buf, NULL, TRUE); - if (NT_SUCCESS (status) && pffei->EaValueLength > 0) - { - PWCHAR spath = (PWCHAR) - (pffei->EaName + pffei->EaNameLength + 1); - res = sys_wcstombs (contents, SYMLINK_MAX + 1, - spath, pffei->EaValueLength); - pflags = PATH_SYMLINK; - } - return res; -} - -int -symlink_info::posixify (char *srcbuf) -{ - /* The definition for a path in a native symlink is a bit weird. The Flags - value seem to contain 0 for absolute paths (stored as NT native path) - and 1 for relative paths. Relative paths are paths not starting with a - drive letter. These are not converted to NT native, but stored as - given. A path starting with a single backslash is relative to the - current drive thus a "relative" value (Flags == 1). - Funny enough it's possible to store paths with slashes instead of - backslashes, but they are evaluated incorrectly by subsequent Windows - calls like CreateFile (ERROR_INVALID_NAME). So, what we do here is to - take paths starting with slashes at face value, evaluating them as - Cygwin specific POSIX paths. - A path starting with two slashes(!) or backslashes is converted into an - NT UNC path. Unfortunately, in contrast to POSIX rules, paths starting - with three or more (back)slashes are also converted into UNC paths, - just incorrectly sticking to one redundant leading backslashe. We go - along with this behaviour to avoid scenarios in which native tools access - other files than Cygwin. - The above rules are used exactly the same way on Cygwin specific symlinks - (sysfiles and shortcuts) to eliminate non-POSIX paths in the output. */ - - /* Eliminate native NT prefixes. */ - if (srcbuf[0] == '\\' && !strncmp (srcbuf + 1, "??\\", 3)) - { - srcbuf += 4; - if (srcbuf[1] != ':') /* native UNC path */ - *(srcbuf += 2) = '\\'; - } - if (isdrive (srcbuf)) - mount_table->conv_to_posix_path (srcbuf, contents, 0); - else if (srcbuf[0] == '\\') - { - if (srcbuf[1] == '\\') /* UNC path */ - slashify (srcbuf, contents, 0); - else /* Paths starting with \ are current drive relative. */ - { - char cvtbuf[SYMLINK_MAX + 1]; - - stpcpy (cvtbuf + cygheap->cwd.get_drive (cvtbuf), srcbuf); - mount_table->conv_to_posix_path (cvtbuf, contents, 0); - } - } - else /* Everything else is taken as is. */ - slashify (srcbuf, contents, 0); - return strlen (contents); -} - -enum -{ - SCAN_BEG, - SCAN_LNK, - SCAN_HASLNK, - SCAN_JUSTCHECK, - SCAN_JUSTCHECKTHIS, /* Never try to append a suffix. */ - SCAN_APPENDLNK, - SCAN_EXTRALNK, - SCAN_DONE, -}; - -class suffix_scan -{ - const suffix_info *suffixes, *suffixes_start; - int nextstate; - char *eopath; -public: - const char *path; - char *has (const char *, const suffix_info *); - int next (); - int lnk_match () {return nextstate >= SCAN_APPENDLNK;} -}; - -char * -suffix_scan::has (const char *in_path, const suffix_info *in_suffixes) -{ - nextstate = SCAN_BEG; - suffixes = suffixes_start = in_suffixes; - - const char *fname = strrchr (in_path, '\\'); - fname = fname ? fname + 1 : in_path; - char *ext_here = strrchr (fname, '.'); - path = in_path; - eopath = strchr (path, '\0'); - - if (!ext_here) - goto noext; - - if (suffixes) - { - /* Check if the extension matches a known extension */ - for (const suffix_info *ex = in_suffixes; ex->name != NULL; ex++) - if (ascii_strcasematch (ext_here, ex->name)) - { - nextstate = SCAN_JUSTCHECK; - suffixes = NULL; /* Has an extension so don't scan for one. */ - goto done; - } - } - - /* Didn't match. Use last resort -- .lnk. */ - if (ascii_strcasematch (ext_here, ".lnk")) - { - nextstate = SCAN_HASLNK; - suffixes = NULL; - } - - noext: - ext_here = eopath; - - done: - /* Avoid attaching suffixes if the resulting filename would be invalid. */ - if (eopath - fname > NAME_MAX - 4) - { - nextstate = SCAN_JUSTCHECKTHIS; - suffixes = NULL; - } - return ext_here; -} - -int -suffix_scan::next () -{ - for (;;) - { - if (!suffixes) - switch (nextstate) - { - case SCAN_BEG: - suffixes = suffixes_start; - if (!suffixes) - { - nextstate = SCAN_LNK; - return 1; - } - nextstate = SCAN_EXTRALNK; - /* fall through to suffix checking below */ - break; - case SCAN_HASLNK: - nextstate = SCAN_APPENDLNK; /* Skip SCAN_BEG */ - return 1; - case SCAN_EXTRALNK: - nextstate = SCAN_DONE; - *eopath = '\0'; - return 0; - case SCAN_JUSTCHECK: - nextstate = SCAN_LNK; - return 1; - case SCAN_JUSTCHECKTHIS: - nextstate = SCAN_DONE; - return 1; - case SCAN_LNK: - case SCAN_APPENDLNK: - strcat (eopath, ".lnk"); - nextstate = SCAN_DONE; - return 1; - default: - *eopath = '\0'; - return 0; - } - - while (suffixes && suffixes->name) - if (nextstate == SCAN_EXTRALNK && !suffixes->addon) - suffixes++; - else - { - strcpy (eopath, suffixes->name); - if (nextstate == SCAN_EXTRALNK) - strcat (eopath, ".lnk"); - suffixes++; - return 1; - } - suffixes = NULL; - } -} - -bool -symlink_info::set_error (int in_errno) -{ - bool res; - if (!(pflags & PATH_NO_ACCESS_CHECK) || in_errno == ENAMETOOLONG || in_errno == EIO) - { - error = in_errno; - res = true; - } - else if (in_errno == ENOENT) - res = true; - else - { - fileattr = FILE_ATTRIBUTE_NORMAL; - res = false; - } - return res; -} - -bool -symlink_info::parse_device (const char *contents) -{ - char *endptr; - _major_t mymajor; - _major_t myminor; - _mode_t mymode; - - mymajor = strtol (contents += 2, &endptr, 16); - if (endptr == contents) - return isdevice = false; - - contents = endptr; - myminor = strtol (++contents, &endptr, 16); - if (endptr == contents) - return isdevice = false; - - contents = endptr; - mymode = strtol (++contents, &endptr, 16); - if (endptr == contents) - return isdevice = false; - - if ((mymode & S_IFMT) == S_IFIFO) - { - mymajor = _major (FH_FIFO); - myminor = _minor (FH_FIFO); - } - - major = mymajor; - minor = myminor; - mode = mymode; - return isdevice = true; -} - -/* Check if PATH is a symlink. PATH must be a valid Win32 path name. - - If PATH is a symlink, put the value of the symlink--the file to - which it points--into BUF. The value stored in BUF is not - necessarily null terminated. BUFLEN is the length of BUF; only up - to BUFLEN characters will be stored in BUF. BUF may be NULL, in - which case nothing will be stored. - - Set *SYML if PATH is a symlink. - - Set *EXEC if PATH appears to be executable. This is an efficiency - hack because we sometimes have to open the file anyhow. *EXEC will - not be set for every executable file. - - Return -1 on error, 0 if PATH is not a symlink, or the length - stored into BUF if PATH is a symlink. */ - -int -symlink_info::check (char *path, const suffix_info *suffixes, unsigned opt, - fs_info &fs) -{ - HANDLE h = NULL; - int res = 0; - suffix_scan suffix; - contents[0] = '\0'; - - issymlink = true; - isdevice = false; - ext_here = suffix.has (path, suffixes); - extn = ext_here - path; - major = 0; - minor = 0; - mode = 0; - pflags &= ~(PATH_SYMLINK | PATH_LNK | PATH_REP); - ULONG ci_flag = cygwin_shared->obcaseinsensitive || (pflags & PATH_NOPOSIX) - ? OBJ_CASE_INSENSITIVE : 0; - - /* TODO: Temporarily do all char->UNICODE conversion here. This should - already be slightly faster than using Ascii functions. */ - tmp_pathbuf tp; - UNICODE_STRING upath; - OBJECT_ATTRIBUTES attr; - tp.u_get (&upath); - InitializeObjectAttributes (&attr, &upath, ci_flag, NULL, NULL); - - PVOID eabuf = &nfs_aol_ffei; - ULONG easize = sizeof nfs_aol_ffei; - - while (suffix.next ()) - { - FILE_BASIC_INFORMATION fbi; - NTSTATUS status; - IO_STATUS_BLOCK io; - bool no_ea = false; - bool fs_update_called = false; - - error = 0; - get_nt_native_path (suffix.path, upath); - if (h) - { - NtClose (h); - h = NULL; - } - /* The EA given to NtCreateFile allows to get a handle to a symlink on - an NFS share, rather than getting a handle to the target of the - symlink (which would spoil the task of this method quite a bit). - Fortunately it's ignored on most other file systems so we don't have - to special case NFS too much. */ - status = NtCreateFile (&h, - READ_CONTROL | FILE_READ_ATTRIBUTES | FILE_READ_EA, - &attr, &io, NULL, 0, FILE_SHARE_VALID_FLAGS, - FILE_OPEN, - FILE_OPEN_REPARSE_POINT - | FILE_OPEN_FOR_BACKUP_INTENT, - eabuf, easize); - /* No right to access EAs or EAs not supported? */ - if (status == STATUS_ACCESS_DENIED || status == STATUS_EAS_NOT_SUPPORTED - || status == STATUS_NOT_SUPPORTED - /* Or a bug in Samba 3.2.x (x <= 7) when accessing a share's root dir - which has EAs enabled? */ - || status == STATUS_INVALID_PARAMETER) - { - no_ea = true; - /* If EAs are not supported, there's no sense to check them again - with suffixes attached. So we set eabuf/easize to 0 here once. */ - if (status == STATUS_EAS_NOT_SUPPORTED - || status == STATUS_NOT_SUPPORTED) - { - eabuf = NULL; - easize = 0; - } - status = NtOpenFile (&h, READ_CONTROL | FILE_READ_ATTRIBUTES, - &attr, &io, FILE_SHARE_VALID_FLAGS, - FILE_OPEN_REPARSE_POINT - | FILE_OPEN_FOR_BACKUP_INTENT); - } - if (status == STATUS_OBJECT_NAME_NOT_FOUND && ci_flag == 0 - && wincap.has_broken_udf ()) - { - /* On NT 5.x UDF is broken (at least) in terms of case sensitivity. - When trying to open a file case sensitive, the file appears to be - non-existant. Another bug is described in fs_info::update. */ - attr.Attributes = OBJ_CASE_INSENSITIVE; - status = NtOpenFile (&h, READ_CONTROL | FILE_READ_ATTRIBUTES, - &attr, &io, FILE_SHARE_VALID_FLAGS, - FILE_OPEN_REPARSE_POINT - | FILE_OPEN_FOR_BACKUP_INTENT); - attr.Attributes = 0; - if (NT_SUCCESS (status)) - { - fs.update (&upath, h); - if (fs.is_udf ()) - fs_update_called = true; - else - { - NtClose (h); - status = STATUS_OBJECT_NAME_NOT_FOUND; - } - } - } - if (NT_SUCCESS (status) - && NT_SUCCESS (status - = NtQueryInformationFile (h, &io, &fbi, sizeof fbi, - FileBasicInformation))) - fileattr = fbi.FileAttributes; - else - { - debug_printf ("%p = NtQueryInformationFile (%S)", status, &upath); - h = NULL; - fileattr = INVALID_FILE_ATTRIBUTES; - - /* One of the inner path components is invalid, or the path contains - invalid characters. Bail out with ENOENT. - - Note that additional STATUS_OBJECT_PATH_INVALID and - STATUS_OBJECT_PATH_SYNTAX_BAD status codes exist. The first one - is seemingly not generated by NtQueryAttributesFile, the latter - is only generated if the path is no absolute path within the - NT name space, which should not happen and would point to an - error in get_nt_native_path. Both status codes are deliberately - not tested here unless proved necessary. */ - if (status == STATUS_OBJECT_PATH_NOT_FOUND - || status == STATUS_OBJECT_NAME_INVALID - || status == STATUS_NO_MEDIA_IN_DEVICE) - { - set_error (ENOENT); - goto file_not_symlink; - } - if (status != STATUS_OBJECT_NAME_NOT_FOUND - && status != STATUS_NO_SUCH_FILE) /* ENOENT on NFS or 9x share */ - { - /* The file exists, but the user can't access it for one reason - or the other. To get the file attributes we try to access the - information by opening the parent directory and getting the - file attributes using a matching NtQueryDirectoryFile call. */ - UNICODE_STRING dirname, basename; - OBJECT_ATTRIBUTES dattr; - HANDLE dir; - struct { - FILE_DIRECTORY_INFORMATION fdi; - WCHAR dummy_buf[NAME_MAX + 1]; - } fdi_buf; - - RtlSplitUnicodePath (&upath, &dirname, &basename); - InitializeObjectAttributes (&dattr, &dirname, ci_flag, - NULL, NULL); - status = NtOpenFile (&dir, SYNCHRONIZE | FILE_LIST_DIRECTORY, - &dattr, &io, FILE_SHARE_VALID_FLAGS, - FILE_SYNCHRONOUS_IO_NONALERT - | FILE_OPEN_FOR_BACKUP_INTENT - | FILE_DIRECTORY_FILE); - if (!NT_SUCCESS (status)) - { - debug_printf ("%p = NtOpenFile(%S)", status, &dirname); - fileattr = 0; - } - else - { - status = NtQueryDirectoryFile (dir, NULL, NULL, NULL, &io, - &fdi_buf, sizeof fdi_buf, - FileDirectoryInformation, - TRUE, &basename, TRUE); - /* Take the opportunity to check file system while we're - having the handle to the parent dir. */ - fs.update (&upath, h); - NtClose (dir); - if (!NT_SUCCESS (status)) - { - debug_printf ("%p = NtQueryDirectoryFile(%S)", - status, &dirname); - if (status == STATUS_NO_SUCH_FILE) - { - /* This can happen when trying to access files - which match DOS device names on SMB shares. - NtOpenFile failed with STATUS_ACCESS_DENIED, - but the NtQueryDirectoryFile tells us the - file doesn't exist. We're suspicious in this - case and retry with the next suffix instead of - just giving up. */ - set_error (ENOENT); - continue; - } - fileattr = 0; - } - else - fileattr = fdi_buf.fdi.FileAttributes; - } - ext_tacked_on = !!*ext_here; - goto file_not_symlink; - } - set_error (ENOENT); - continue; - } - - /* Check file system while we're having the file open anyway. - This speeds up path_conv noticably (~10%). */ - if (!fs_update_called) - fs.update (&upath, h); - - ext_tacked_on = !!*ext_here; - - res = -1; - - /* Windows shortcuts are potentially treated as symlinks. Valid Cygwin - & U/WIN shortcuts are R/O, but definitely not directories. */ - if ((fileattr & (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY)) - == FILE_ATTRIBUTE_READONLY && suffix.lnk_match ()) - { - res = check_shortcut (h); - if (!res) - { - /* If searching for `foo' and then finding a `foo.lnk' which is - no shortcut, return the same as if file not found. */ - if (ext_tacked_on) - { - fileattr = INVALID_FILE_ATTRIBUTES; - set_error (ENOENT); - continue; - } - } - else if (contents[0] != ':' || contents[1] != '\\' - || !parse_device (contents)) - break; - } - - /* If searching for `foo' and then finding a `foo.lnk' which is - no shortcut, return the same as if file not found. */ - else if (suffix.lnk_match () && ext_tacked_on) - { - fileattr = INVALID_FILE_ATTRIBUTES; - set_error (ENOENT); - continue; - } - - /* Reparse points are potentially symlinks. This check must be - performed before checking the SYSTEM attribute for sysfile - symlinks, since reparse points can have this flag set, too. - For instance, Vista starts to create a couple of reparse points - with SYSTEM and HIDDEN flags set. */ - else if (fileattr & FILE_ATTRIBUTE_REPARSE_POINT) - { - res = check_reparse_point (h); - if (res == -1) - { - /* Volume mount point. The filesystem information for the top - level directory should be for the volume top level directory - itself, rather than for the reparse point itself. So we - fetch the filesystem information again, but with a NULL - handle. This does what we want because fs_info::update opens - the handle without FILE_OPEN_REPARSE_POINT. */ - fs.update (&upath, NULL); - } - else if (res) - break; - } - - /* This is the old Cygwin method creating symlinks. A symlink will - have the `system' file attribute. Only files can be symlinks - (which can be symlinks to directories). */ - else if ((fileattr & (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_DIRECTORY)) - == FILE_ATTRIBUTE_SYSTEM) - { - res = check_sysfile (h); - if (res) - break; - } - - /* If the file could be opened with FILE_READ_EA, and if it's on a - NFS share, check if it's a symlink. Only files can be symlinks - (which can be symlinks to directories). */ - else if (fs.is_nfs () && !no_ea && !(fileattr & FILE_ATTRIBUTE_DIRECTORY)) - { - res = check_nfs_symlink (h); - if (res) - break; - } - - /* Normal file. */ - file_not_symlink: - issymlink = false; - syscall_printf ("%s", isdevice ? "is a device" : "not a symlink"); - res = 0; - break; - } - - if (h) - NtClose (h); - - syscall_printf ("%d = symlink.check (%s, %p) (%p)", - res, suffix.path, contents, pflags); - return res; -} - -/* "path" is the path in a virtual symlink. Set a symlink_info struct from - that and proceed with further path checking afterwards. */ -int -symlink_info::set (char *path) -{ - strcpy (contents, path); - pflags = PATH_SYMLINK; - fileattr = FILE_ATTRIBUTE_NORMAL; - error = 0; - issymlink = true; - isdevice = false; - ext_tacked_on = false; - ext_here = NULL; - extn = major = minor = mode = 0; - return strlen (path); -} - -/* readlink system call */ - -extern "C" ssize_t -readlink (const char *path, char *buf, size_t buflen) -{ - if (buflen < 0) - { - set_errno (ENAMETOOLONG); - return -1; - } - - path_conv pathbuf (path, PC_SYM_CONTENTS, stat_suffixes); - - if (pathbuf.error) - { - set_errno (pathbuf.error); - syscall_printf ("-1 = readlink (%s, %p, %d)", path, buf, buflen); - return -1; - } - - if (!pathbuf.exists ()) - { - set_errno (ENOENT); - return -1; - } - - if (!pathbuf.issymlink ()) - { - if (pathbuf.exists ()) - set_errno (EINVAL); - return -1; - } - - ssize_t len = min (buflen, strlen (pathbuf.get_win32 ())); - memcpy (buf, pathbuf.get_win32 (), len); - - /* errno set by symlink.check if error */ - return len; -} - -/* Some programs rely on st_dev/st_ino being unique for each file. - Hash the path name and hope for the best. The hash arg is not - always initialized to zero since readdir needs to compute the - dirent ino_t based on a combination of the hash of the directory - done during the opendir call and the hash or the filename within - the directory. FIXME: Not bullet-proof. */ -/* Cygwin internal */ -__ino64_t __stdcall -hash_path_name (__ino64_t hash, PUNICODE_STRING name) -{ - if (name->Length == 0) - return hash; - - /* Build up hash. Name is already normalized */ - USHORT len = name->Length / sizeof (WCHAR); - for (USHORT idx = 0; idx < len; ++idx) - hash = RtlUpcaseUnicodeChar (name->Buffer[idx]) - + (hash << 6) + (hash << 16) - hash; - return hash; -} - -__ino64_t __stdcall -hash_path_name (__ino64_t hash, PCWSTR name) -{ - UNICODE_STRING uname; - RtlInitUnicodeString (&uname, name); - return hash_path_name (hash, &uname); -} - -__ino64_t __stdcall -hash_path_name (__ino64_t hash, const char *name) -{ - UNICODE_STRING uname; - RtlCreateUnicodeStringFromAsciiz (&uname, name); - __ino64_t ret = hash_path_name (hash, &uname); - RtlFreeUnicodeString (&uname); - return ret; -} - -extern "C" char * -getcwd (char *buf, size_t ulen) -{ - char* res = NULL; - myfault efault; - if (efault.faulted (EFAULT)) - /* errno set */; - else if (ulen == 0 && buf) - set_errno (EINVAL); - else - res = cygheap->cwd.get (buf, 1, 1, ulen); - return res; -} - -/* getwd: Legacy. */ -extern "C" char * -getwd (char *buf) -{ - return getcwd (buf, PATH_MAX + 1); /*Per SuSv3!*/ -} - -/* chdir: POSIX 5.2.1.1 */ -extern "C" int -chdir (const char *in_dir) -{ - myfault efault; - if (efault.faulted (EFAULT)) - return -1; - if (!*in_dir) - { - set_errno (ENOENT); - return -1; - } - - syscall_printf ("dir '%s'", in_dir); - - /* Convert path. First argument ensures that we don't check for NULL/empty/invalid - again. */ - path_conv path (PC_NONULLEMPTY, in_dir, PC_SYM_FOLLOW | PC_POSIX); - if (path.error) - { - set_errno (path.error); - syscall_printf ("-1 = chdir (%s)", in_dir); - return -1; - } - - int res = -1; - bool doit = false; - const char *posix_cwd = NULL; - int devn = path.get_devn (); - if (!path.exists ()) - set_errno (ENOENT); - else if (!path.isdir ()) - set_errno (ENOTDIR); - else if (!isvirtual_dev (devn)) - { - /* The sequence chdir("xx"); chdir(".."); must be a noop if xx - is not a symlink. This is exploited by find.exe. - The posix_cwd is just path.normalized_path. - In other cases we let cwd.set obtain the Posix path through - the mount table. */ - if (!isdrive(path.normalized_path)) - posix_cwd = path.normalized_path; - res = 0; - doit = true; - } - else - { - posix_cwd = path.normalized_path; - res = 0; - } - - if (!res) - res = cygheap->cwd.set (path.get_nt_native_path (), posix_cwd, doit); - - /* Note that we're accessing cwd.posix without a lock here. I didn't think - it was worth locking just for strace. */ - syscall_printf ("%d = chdir() cygheap->cwd.posix '%s' native '%S'", res, - cygheap->cwd.get_posix (), path.get_nt_native_path ()); - MALLOC_CHECK; - return res; -} - -extern "C" int -fchdir (int fd) -{ - int res; - cygheap_fdget cfd (fd); - if (cfd >= 0) - res = chdir (cfd->get_name ()); - else - res = -1; - - syscall_printf ("%d = fchdir (%d)", res, fd); - return res; -} - -/******************** Exported Path Routines *********************/ - -/* Cover functions to the path conversion routines. - These are exported to the world as cygwin_foo by cygwin.din. */ - -#define return_with_errno(x) \ - do {\ - int err = (x);\ - if (!err)\ - return 0;\ - set_errno (err);\ - return -1;\ - } while (0) - -extern "C" ssize_t -cygwin_conv_path (cygwin_conv_path_t what, const void *from, void *to, - size_t size) -{ - tmp_pathbuf tp; - myfault efault; - if (efault.faulted (EFAULT)) - return -1; - - path_conv p; - size_t lsiz = 0; - char *buf = NULL; - int error = 0; - bool relative = !!(what & CCP_RELATIVE); - what &= ~CCP_RELATIVE; - - switch (what) - { - case CCP_POSIX_TO_WIN_A: - { - p.check ((const char *) from, - PC_POSIX | PC_SYM_FOLLOW | PC_NO_ACCESS_CHECK | PC_NOWARN - | (relative ? PC_NOFULL : 0)); - if (p.error) - return_with_errno (p.error); - PUNICODE_STRING up = p.get_nt_native_path (); - buf = tp.c_get (); - sys_wcstombs (buf, NT_MAX_PATH, up->Buffer, up->Length / sizeof (WCHAR)); - /* Convert native path to standard DOS path. */ - if (!strncmp (buf, "\\??\\", 4)) - { - buf += 4; - if (buf[1] != ':') /* native UNC path */ - *(buf += 2) = '\\'; - } - lsiz = strlen (buf) + 1; - } - break; - case CCP_POSIX_TO_WIN_W: - p.check ((const char *) from, PC_POSIX | PC_SYM_FOLLOW - | PC_NO_ACCESS_CHECK | PC_NOWARN - | (relative ? PC_NOFULL : 0)); - if (p.error) - return_with_errno (p.error); - /* Relative Windows paths are always restricted to MAX_PATH chars. */ - if (relative && !isabspath (p.get_win32 ()) - && sys_mbstowcs (NULL, 0, p.get_win32 ()) > MAX_PATH) - { - /* Recreate as absolute path. */ - p.check ((const char *) from, PC_POSIX | PC_SYM_FOLLOW - | PC_NO_ACCESS_CHECK | PC_NOWARN); - if (p.error) - return_with_errno (p.error); - } - lsiz = (p.get_wide_win32_path_len () + 1) * sizeof (WCHAR); - break; - case CCP_WIN_A_TO_POSIX: - buf = tp.c_get (); - error = mount_table->conv_to_posix_path ((const char *) from, buf, - relative); - if (error) - return_with_errno (error); - lsiz = strlen (buf) + 1; - break; - case CCP_WIN_W_TO_POSIX: - buf = tp.c_get (); - error = mount_table->conv_to_posix_path ((const PWCHAR) from, buf, - relative); - if (error) - return_with_errno (error); - lsiz = strlen (buf) + 1; - break; - default: - set_errno (EINVAL); - return -1; - } - if (!size) - return lsiz; - if (size < lsiz) - { - set_errno (ENOSPC); - return -1; - } - switch (what) - { - case CCP_POSIX_TO_WIN_A: - case CCP_WIN_A_TO_POSIX: - case CCP_WIN_W_TO_POSIX: - strcpy ((char *) to, buf); - break; - case CCP_POSIX_TO_WIN_W: - p.get_wide_win32_path ((PWCHAR) to); - break; - } - return 0; -} - -extern "C" void * -cygwin_create_path (cygwin_conv_path_t what, const void *from) -{ - void *to; - ssize_t size = cygwin_conv_path (what, from, NULL, 0); - if (size <= 0) - return NULL; - if (!(to = malloc (size))) - return NULL; - if (cygwin_conv_path (what, from, to, size) == -1) - return NULL; - return to; -} - - -extern "C" int -cygwin_conv_to_win32_path (const char *path, char *win32_path) -{ - return cygwin_conv_path (CCP_POSIX_TO_WIN_A | CCP_RELATIVE, path, win32_path, - MAX_PATH); -} - -extern "C" int -cygwin_conv_to_full_win32_path (const char *path, char *win32_path) -{ - return cygwin_conv_path (CCP_POSIX_TO_WIN_A | CCP_ABSOLUTE, path, win32_path, - MAX_PATH); -} - -/* This is exported to the world as cygwin_foo by cygwin.din. */ - -extern "C" int -cygwin_conv_to_posix_path (const char *path, char *posix_path) -{ - return cygwin_conv_path (CCP_WIN_A_TO_POSIX | CCP_RELATIVE, path, posix_path, - MAX_PATH); -} - -extern "C" int -cygwin_conv_to_full_posix_path (const char *path, char *posix_path) -{ - return cygwin_conv_path (CCP_WIN_A_TO_POSIX | CCP_ABSOLUTE, path, posix_path, - MAX_PATH); -} - -/* The realpath function is required by POSIX:2008. */ - -extern "C" char * -realpath (const char *path, char *resolved) -{ - /* Make sure the right errno is returned if path is NULL. */ - if (!path) - { - set_errno (EINVAL); - return NULL; - } - - /* Guard reading from a potentially invalid path and writing to a - potentially invalid resolved. */ - tmp_pathbuf tp; - myfault efault; - if (efault.faulted (EFAULT)) - return NULL; - - char *tpath; - if (isdrive (path)) - { - tpath = tp.c_get (); - mount_table->cygdrive_posix_path (path, tpath, 0); - } - else - tpath = (char *) path; - - path_conv real_path (tpath, PC_SYM_FOLLOW | PC_POSIX, stat_suffixes); - - - /* POSIX 2008 requires malloc'ing if resolved is NULL, and states - that using non-NULL resolved is asking for portability - problems. */ - - if (!real_path.error && real_path.exists ()) - { - if (!resolved) - { - resolved = (char *) malloc (strlen (real_path.normalized_path) + 1); - if (!resolved) - return NULL; - } - strcpy (resolved, real_path.normalized_path); - return resolved; - } - - /* FIXME: on error, Linux puts the name of the path - component which could not be resolved into RESOLVED, but POSIX - does not require this. */ - if (resolved) - resolved[0] = '\0'; - set_errno (real_path.error ?: ENOENT); - return NULL; -} - -/* Linux provides this extension. Since the only portable use of - realpath requires a NULL second argument, we might as well have a - one-argument wrapper. */ -extern "C" char * -canonicalize_file_name (const char *path) -{ - return realpath (path, NULL); -} - -/* Return non-zero if path is a POSIX path list. - This is exported to the world as cygwin_foo by cygwin.din. - -DOCTOOL-START -<sect1 id="add-func-cygwin-posix-path-list-p"> - <para>Rather than use a mode to say what the "proper" path list - format is, we allow any, and give apps the tools they need to - convert between the two. If a ';' is present in the path list it's - a Win32 path list. Otherwise, if the first path begins with - [letter]: (in which case it can be the only element since if it - wasn't a ';' would be present) it's a Win32 path list. Otherwise, - it's a POSIX path list.</para> -</sect1> -DOCTOOL-END - */ - -extern "C" int -cygwin_posix_path_list_p (const char *path) -{ - int posix_p = !(strchr (path, ';') || isdrive (path)); - return posix_p; -} - -/* These are used for apps that need to convert env vars like PATH back and - forth. The conversion is a two step process. First, an upper bound on the - size of the buffer needed is computed. Then the conversion is done. This - allows the caller to use alloca if it wants. */ - -static int -conv_path_list_buf_size (const char *path_list, bool to_posix) -{ - int i, num_elms, max_mount_path_len, size; - const char *p; - - path_conv pc(".", PC_POSIX); - /* The theory is that an upper bound is - current_size + (num_elms * max_mount_path_len) */ - /* FIXME: This method is questionable in the long run. */ - - unsigned nrel; - char delim = to_posix ? ';' : ':'; - for (p = path_list, num_elms = nrel = 0; p; num_elms++) - { - if (!isabspath (p)) - nrel++; - p = strchr (++p, delim); - } - - /* 7: strlen ("//c") + slop, a conservative initial value */ - for (max_mount_path_len = sizeof ("/cygdrive/X"), i = 0; - i < mount_table->nmounts; i++) - { - int mount_len = (to_posix - ? mount_table->mount[i].posix_pathlen - : mount_table->mount[i].native_pathlen); - if (max_mount_path_len < mount_len) - max_mount_path_len = mount_len; - } - - /* 100: slop */ - size = strlen (path_list) - + (num_elms * max_mount_path_len) - + (nrel * strlen (to_posix ? pc.normalized_path : pc.get_win32 ())) - + 100; - - return size; -} - - -extern "C" int -cygwin_win32_to_posix_path_list_buf_size (const char *path_list) -{ - return conv_path_list_buf_size (path_list, true); -} - -extern "C" int -cygwin_posix_to_win32_path_list_buf_size (const char *path_list) -{ - return conv_path_list_buf_size (path_list, false); -} - -extern "C" ssize_t -env_PATH_to_posix (const void *win32, void *posix, size_t size) -{ - return_with_errno (conv_path_list ((const char *) win32, (char *) posix, - size, ENV_CVT)); -} - -extern "C" int -cygwin_win32_to_posix_path_list (const char *win32, char *posix) -{ - return_with_errno (conv_path_list (win32, posix, MAX_PATH, 1)); -} - -extern "C" int -cygwin_posix_to_win32_path_list (const char *posix, char *win32) -{ - return_with_errno (conv_path_list (posix, win32, MAX_PATH, 0)); -} - -extern "C" ssize_t -cygwin_conv_path_list (cygwin_conv_path_t what, const void *from, void *to, - size_t size) -{ - /* FIXME: Path lists are (so far) always retaining relative paths. */ - what &= ~CCP_RELATIVE; - switch (what) - { - case CCP_WIN_W_TO_POSIX: - case CCP_POSIX_TO_WIN_W: - /*FIXME*/ - api_fatal ("wide char path lists not yet supported"); - break; - case CCP_WIN_A_TO_POSIX: - case CCP_POSIX_TO_WIN_A: - if (size == 0) - return conv_path_list_buf_size ((const char *) from, - what == CCP_WIN_A_TO_POSIX); - return_with_errno (conv_path_list ((const char *) from, (char *) to, - size, what == CCP_WIN_A_TO_POSIX)); - break; - default: - break; - } - set_errno (EINVAL); - return -1; -} - -/* cygwin_split_path: Split a path into directory and file name parts. - Buffers DIR and FILE are assumed to be big enough. - - Examples (path -> `dir' / `file'): - / -> `/' / `' - "" -> `.' / `' - . -> `.' / `.' (FIXME: should this be `.' / `'?) - .. -> `.' / `..' (FIXME: should this be `..' / `'?) - foo -> `.' / `foo' - foo/bar -> `foo' / `bar' - foo/bar/ -> `foo' / `bar' - /foo -> `/' / `foo' - /foo/bar -> `/foo' / `bar' - c: -> `c:/' / `' - c:/ -> `c:/' / `' - c:foo -> `c:/' / `foo' - c:/foo -> `c:/' / `foo' - */ - -extern "C" void -cygwin_split_path (const char *path, char *dir, char *file) -{ - int dir_started_p = 0; - - /* Deal with drives. - Remember that c:foo <==> c:/foo. */ - if (isdrive (path)) - { - *dir++ = *path++; - *dir++ = *path++; - *dir++ = '/'; - if (!*path) - { - *dir = 0; - *file = 0; - return; - } - if (isdirsep (*path)) - ++path; - dir_started_p = 1; - } - - /* Determine if there are trailing slashes and "delete" them if present. - We pretend as if they don't exist. */ - const char *end = path + strlen (path); - /* path + 1: keep leading slash. */ - while (end > path + 1 && isdirsep (end[-1])) - --end; - - /* At this point, END points to one beyond the last character - (with trailing slashes "deleted"). */ - - /* Point LAST_SLASH at the last slash (duh...). */ - const char *last_slash; - for (last_slash = end - 1; last_slash >= path; --last_slash) - if (isdirsep (*last_slash)) - break; - - if (last_slash == path) - { - *dir++ = '/'; - *dir = 0; - } - else if (last_slash > path) - { - memcpy (dir, path, last_slash - path); - dir[last_slash - path] = 0; - } - else - { - if (dir_started_p) - ; /* nothing to do */ - else - *dir++ = '.'; - *dir = 0; - } - - memcpy (file, last_slash + 1, end - last_slash - 1); - file[end - last_slash - 1] = 0; -} - -/*****************************************************************************/ - -static inline PRTL_USER_PROCESS_PARAMETERS -get_user_proc_parms () -{ - return NtCurrentTeb ()->Peb->ProcessParameters; -} - -/* Initialize cygcwd 'muto' for serializing access to cwd info. */ -void -cwdstuff::init () -{ - cwd_lock.init ("cwd_lock"); - /* Initially re-open the cwd to allow POSIX semantics. */ - set (NULL, NULL, true); -} - -/* Chdir and fill out the elements of a cwdstuff struct. */ -int -cwdstuff::set (PUNICODE_STRING nat_cwd, const char *posix_cwd, bool doit) -{ - int res = 0; - UNICODE_STRING upath; - size_t len = 0; - - cwd_lock.acquire (); - - if (nat_cwd) - { - upath = *nat_cwd; - if (upath.Buffer[0] == L'/') /* Virtual path. Never use in PEB. */ - doit = false; - else - { - len = upath.Length / sizeof (WCHAR) - 4; - if (RtlEqualUnicodePathPrefix (&upath, &ro_u_uncp, TRUE)) - len -= 2; - } - } - - if (doit) - { - /* We utilize the user parameter block. The directory is - stored manually there. Why the hassle? - - - SetCurrentDirectory fails for directories with strict - permissions even for processes with the SE_BACKUP_NAME - privilege enabled. The reason is apparently that - SetCurrentDirectory calls NtOpenFile without the - FILE_OPEN_FOR_BACKUP_INTENT flag set. - - - Unlinking a cwd fails because SetCurrentDirectory seems to - open directories so that deleting the directory is disallowed. - The below code opens with *all* sharing flags set. */ - HANDLE h; - NTSTATUS status; - IO_STATUS_BLOCK io; - OBJECT_ATTRIBUTES attr; - PHANDLE phdl; - - RtlAcquirePebLock (); - phdl = &get_user_proc_parms ()->CurrentDirectoryHandle; - if (!nat_cwd) /* On init, just reopen CWD with desired access flags. */ - RtlInitUnicodeString (&upath, L""); - /* This is for Win32 apps only. No case sensitivity here... */ - InitializeObjectAttributes (&attr, &upath, - OBJ_CASE_INSENSITIVE | OBJ_INHERIT, - nat_cwd ? NULL : *phdl, NULL); - status = NtOpenFile (&h, SYNCHRONIZE | FILE_TRAVERSE, &attr, &io, - FILE_SHARE_VALID_FLAGS, - FILE_DIRECTORY_FILE - | FILE_SYNCHRONOUS_IO_NONALERT - | FILE_OPEN_FOR_BACKUP_INTENT); - if (!NT_SUCCESS (status)) - { - RtlReleasePebLock (); - __seterrno_from_nt_status (status); - res = -1; - goto out; - } - /* Workaround a problem in Vista/Longhorn which fails in subsequent - calls to CreateFile with ERROR_INVALID_HANDLE if the handle in - CurrentDirectoryHandle changes without calling SetCurrentDirectory, - and the filename given to CreateFile is a relative path. It looks - like Vista stores a copy of the CWD handle in some other undocumented - place. The NtClose/DuplicateHandle reuses the original handle for - the copy of the new handle and the next CreateFile works. - Note that this is not thread-safe (yet?) */ - NtClose (*phdl); - if (DuplicateHandle (GetCurrentProcess (), h, GetCurrentProcess (), phdl, - 0, TRUE, DUPLICATE_SAME_ACCESS)) - NtClose (h); - else - *phdl = h; - dir = *phdl; - - /* No need to set path on init. */ - if (nat_cwd - /* TODO: - Check the length of the new CWD. Windows can only handle - CWDs of up to MAX_PATH length, including a trailing backslash. - If the path is longer, it's not an error condition for Cygwin, - so we don't fail. Windows on the other hand has a problem now. - For now, we just don't store the path in the PEB and proceed as - usual. */ - && len <= MAX_PATH - (nat_cwd->Buffer[len - 1] == L'\\' ? 1 : 2)) - { - /* Convert to a Win32 path. */ - upath.Buffer += upath.Length / sizeof (WCHAR) - len; - if (upath.Buffer[1] == L'\\') /* UNC path */ - upath.Buffer[0] = L'\\'; - upath.Length = len * sizeof (WCHAR); - /* Append backslash if necessary. */ - if (upath.Buffer[len - 1] != L'\\') - { - upath.Buffer[len] = L'\\'; - upath.Length += sizeof (WCHAR); - } - RtlCopyUnicodeString (&get_user_proc_parms ()->CurrentDirectoryName, - &upath); - } - - RtlReleasePebLock (); - } - - if (nat_cwd || !win32.Buffer) - { - /* If there is no win32 path */ - if (!nat_cwd) - { - PUNICODE_STRING pdir; - - RtlAcquirePebLock (); - pdir = &get_user_proc_parms ()->CurrentDirectoryName; - RtlInitEmptyUnicodeString (&win32, - (PWCHAR) crealloc_abort (win32.Buffer, - pdir->Length + 2), - pdir->Length + 2); - RtlCopyUnicodeString (&win32, pdir); - RtlReleasePebLock (); - - PWSTR eoBuffer = win32.Buffer + (win32.Length / sizeof (WCHAR)); - /* Remove trailing slash if one exists. FIXME: Is there a better way to - do this? */ - if ((eoBuffer - win32.Buffer) > 3 && eoBuffer[-1] == L'\\') - win32.Length -= sizeof (WCHAR); - - posix_cwd = NULL; - } - else - { - bool unc = false; - - if (upath.Buffer[0] == L'/') /* Virtual path, don't mangle. */ - ; - else if (!doit) - { - /* Convert to a Win32 path. */ - upath.Buffer += upath.Length / sizeof (WCHAR) - len; - if (upath.Buffer[1] == L'\\') /* UNC path */ - unc = true; - upath.Length = len * sizeof (WCHAR); - } - else - { - PWSTR eoBuffer = upath.Buffer + (upath.Length / sizeof (WCHAR)); - /* Remove trailing slash if one exists. FIXME: Is there a better way to - do this? */ - if ((eoBuffer - upath.Buffer) > 3 && eoBuffer[-1] == L'\\') - upath.Length -= sizeof (WCHAR); - } - RtlInitEmptyUnicodeString (&win32, - (PWCHAR) crealloc_abort (win32.Buffer, - upath.Length + 2), - upath.Length + 2); - RtlCopyUnicodeString (&win32, &upath); - if (unc) - win32.Buffer[0] = L'\\'; - } - /* Make sure it's NUL-terminated. */ - win32.Buffer[win32.Length / sizeof (WCHAR)] = L'\0'; - if (!doit) /* Virtual path */ - drive_length = 0; - else if (win32.Buffer[1] == L':') /* X: */ - drive_length = 2; - else if (win32.Buffer[1] == L'\\') /* UNC path */ - { - PWCHAR ptr = wcschr (win32.Buffer + 2, L'\\'); - if (ptr) - ptr = wcschr (ptr + 1, L'\\'); - if (ptr) - drive_length = ptr - win32.Buffer; - else - drive_length = win32.Length / sizeof (WCHAR); - } - else /* Shouldn't happen */ - drive_length = 0; - - tmp_pathbuf tp; - if (!posix_cwd) - { - posix_cwd = (const char *) tp.c_get (); - mount_table->conv_to_posix_path (win32.Buffer, (char *) posix_cwd, 0); - } - posix = (char *) crealloc_abort (posix, strlen (posix_cwd) + 1); - stpcpy (posix, posix_cwd); - } - -out: - cwd_lock.release (); - return res; -} - -/* Store incoming wchar_t path as current posix cwd. This is called from - setlocale so that the cwd is always stored in the right charset. */ -void -cwdstuff::reset_posix (wchar_t *w_cwd) -{ - size_t len = sys_wcstombs (NULL, (size_t) -1, w_cwd); - posix = (char *) crealloc_abort (posix, len + 1); - sys_wcstombs (posix, len + 1, w_cwd); -} - -char * -cwdstuff::get (char *buf, int need_posix, int with_chroot, unsigned ulen) -{ - MALLOC_CHECK; - - tmp_pathbuf tp; - if (ulen) - /* nothing */; - else if (buf == NULL) - ulen = (unsigned) -1; - else - { - set_errno (EINVAL); - goto out; - } - - cwd_lock.acquire (); - - char *tocopy; - if (!need_posix) - { - tocopy = tp.c_get (); - sys_wcstombs (tocopy, NT_MAX_PATH, win32.Buffer, - win32.Length / sizeof (WCHAR)); - } - else - tocopy = posix; - - debug_printf ("posix %s", posix); - if (strlen (tocopy) >= ulen) - { - set_errno (ERANGE); - buf = NULL; - } - else - { - if (!buf) - buf = (char *) malloc (strlen (tocopy) + 1); - strcpy (buf, tocopy); - if (!buf[0]) /* Should only happen when chroot */ - strcpy (buf, "/"); - } - - cwd_lock.release (); - -out: - syscall_printf ("(%s) = cwdstuff::get (%p, %d, %d, %d), errno %d", - buf, buf, ulen, need_posix, with_chroot, errno); - MALLOC_CHECK; - return buf; -} - -int etc::curr_ix = 0; -/* Note that the first elements of the below arrays are unused */ -bool etc::change_possible[MAX_ETC_FILES + 1]; -OBJECT_ATTRIBUTES etc::fn[MAX_ETC_FILES + 1]; -LARGE_INTEGER etc::last_modified[MAX_ETC_FILES + 1]; - -int -etc::init (int n, POBJECT_ATTRIBUTES attr) -{ - if (n > 0) - /* ok */; - else if (++curr_ix <= MAX_ETC_FILES) - n = curr_ix; - else - api_fatal ("internal error"); - - fn[n] = *attr; - change_possible[n] = false; - test_file_change (n); - paranoid_printf ("fn[%d] %S, curr_ix %d", n, fn[n].ObjectName, curr_ix); - return n; -} - -bool -etc::test_file_change (int n) -{ - NTSTATUS status; - FILE_NETWORK_OPEN_INFORMATION fnoi; - bool res; - - status = NtQueryFullAttributesFile (&fn[n], &fnoi); - if (!NT_SUCCESS (status)) - { - res = true; - memset (last_modified + n, 0, sizeof (last_modified[n])); - debug_printf ("NtQueryFullAttributesFile (%S) failed, %p", - fn[n].ObjectName, status); - } - else - { - res = CompareFileTime ((FILETIME *) &fnoi.LastWriteTime, - (FILETIME *) last_modified + n) > 0; - last_modified[n].QuadPart = fnoi.LastWriteTime.QuadPart; - } - - paranoid_printf ("fn[%d] %S res %d", n, fn[n].ObjectName, res); - return res; -} - -bool -etc::dir_changed (int n) -{ - if (!change_possible[n]) - { - static HANDLE changed_h NO_COPY; - NTSTATUS status; - IO_STATUS_BLOCK io; - - if (!changed_h) - { - OBJECT_ATTRIBUTES attr; - - path_conv dir ("/etc"); - status = NtOpenFile (&changed_h, SYNCHRONIZE | FILE_LIST_DIRECTORY, - dir.get_object_attr (attr, sec_none_nih), &io, - FILE_SHARE_VALID_FLAGS, FILE_DIRECTORY_FILE); - if (!NT_SUCCESS (status)) - { -#ifdef DEBUGGING - system_printf ("NtOpenFile (%S) failed, %p", - dir.get_nt_native_path (), status); -#endif - changed_h = INVALID_HANDLE_VALUE; - } - else - { - status = NtNotifyChangeDirectoryFile (changed_h, NULL, NULL, - NULL, &io, NULL, 0, - FILE_NOTIFY_CHANGE_LAST_WRITE - | FILE_NOTIFY_CHANGE_FILE_NAME, - FALSE); - if (!NT_SUCCESS (status)) - { -#ifdef DEBUGGING - system_printf ("NtNotifyChangeDirectoryFile (1) failed, %p", - status); -#endif - NtClose (changed_h); - changed_h = INVALID_HANDLE_VALUE; - } - } - memset (change_possible, true, sizeof (change_possible)); - } - - if (changed_h == INVALID_HANDLE_VALUE) - change_possible[n] = true; - else if (WaitForSingleObject (changed_h, 0) == WAIT_OBJECT_0) - { - status = NtNotifyChangeDirectoryFile (changed_h, NULL, NULL, - NULL, &io, NULL, 0, - FILE_NOTIFY_CHANGE_LAST_WRITE - | FILE_NOTIFY_CHANGE_FILE_NAME, - FALSE); - if (!NT_SUCCESS (status)) - { -#ifdef DEBUGGING - system_printf ("NtNotifyChangeDirectoryFile (2) failed, %p", - status); -#endif - NtClose (changed_h); - changed_h = INVALID_HANDLE_VALUE; - } - memset (change_possible, true, sizeof change_possible); - } - } - - paranoid_printf ("fn[%d] %S change_possible %d", - n, fn[n].ObjectName, change_possible[n]); - return change_possible[n]; -} - -bool -etc::file_changed (int n) -{ - bool res = false; - if (dir_changed (n) && test_file_change (n)) - res = true; - change_possible[n] = false; /* Change is no longer possible */ - paranoid_printf ("fn[%d] %S res %d", n, fn[n].ObjectName, res); - return res; -} - -/* No need to be reentrant or thread-safe according to SUSv3. - / and \\ are treated equally. Leading drive specifiers are - kept intact as far as it makes sense. Everything else is - POSIX compatible. */ -extern "C" char * -basename (char *path) -{ - static char buf[4]; - char *c, *d, *bs = path; - - if (!path || !*path) - return strcpy (buf, "."); - if (isalpha (path[0]) && path[1] == ':') - bs += 2; - else if (strspn (path, "/\\") > 1) - ++bs; - c = strrchr (bs, '/'); - if ((d = strrchr (c ?: bs, '\\')) > c) - c = d; - if (c) - { - /* Trailing (back)slashes are eliminated. */ - while (c && c > bs && c[1] == '\0') - { - *c = '\0'; - c = strrchr (bs, '/'); - if ((d = strrchr (c ?: bs, '\\')) > c) - c = d; - } - if (c && (c > bs || c[1])) - return c + 1; - } - else if (!bs[0]) - { - stpncpy (buf, path, bs - path); - stpcpy (buf + (bs - path), "."); - return buf; - } - return path; -} - -/* No need to be reentrant or thread-safe according to SUSv3. - / and \\ are treated equally. Leading drive specifiers and - leading double (back)slashes are kept intact as far as it - makes sense. Everything else is POSIX compatible. */ -extern "C" char * -dirname (char *path) -{ - static char buf[4]; - char *c, *d, *bs = path; - - if (!path || !*path) - return strcpy (buf, "."); - if (isalpha (path[0]) && path[1] == ':') - bs += 2; - else if (strspn (path, "/\\") > 1) - ++bs; - c = strrchr (bs, '/'); - if ((d = strrchr (c ?: bs, '\\')) > c) - c = d; - if (c) - { - /* Trailing (back)slashes are eliminated. */ - while (c && c > bs && c[1] == '\0') - { - *c = '\0'; - c = strrchr (bs, '/'); - if ((d = strrchr (c ?: bs, '\\')) > c) - c = d; - } - if (!c) - strcpy (bs, "."); - else if (c > bs) - { - /* More trailing (back)slashes are eliminated. */ - while (c > bs && (*c == '/' || *c == '\\')) - *c-- = '\0'; - } - else - c[1] = '\0'; - } - else - { - stpncpy (buf, path, bs - path); - stpcpy (buf + (bs - path), "."); - return buf; - } - return path; -} |