diff options
Diffstat (limited to 'tools/icu/patches/64/source/common/putil.cpp')
| -rw-r--r-- | tools/icu/patches/64/source/common/putil.cpp | 2415 |
1 files changed, 0 insertions, 2415 deletions
diff --git a/tools/icu/patches/64/source/common/putil.cpp b/tools/icu/patches/64/source/common/putil.cpp deleted file mode 100644 index 59cf232afee..00000000000 --- a/tools/icu/patches/64/source/common/putil.cpp +++ /dev/null @@ -1,2415 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -****************************************************************************** -* -* Copyright (C) 1997-2016, International Business Machines -* Corporation and others. All Rights Reserved. -* -****************************************************************************** -* -* FILE NAME : putil.c (previously putil.cpp and ptypes.cpp) -* -* Date Name Description -* 04/14/97 aliu Creation. -* 04/24/97 aliu Added getDefaultDataDirectory() and -* getDefaultLocaleID(). -* 04/28/97 aliu Rewritten to assume Unix and apply general methods -* for assumed case. Non-UNIX platforms must be -* special-cased. Rewrote numeric methods dealing -* with NaN and Infinity to be platform independent -* over all IEEE 754 platforms. -* 05/13/97 aliu Restored sign of timezone -* (semantics are hours West of GMT) -* 06/16/98 erm Added IEEE_754 stuff, cleaned up isInfinite, isNan, -* nextDouble.. -* 07/22/98 stephen Added remainder, max, min, trunc -* 08/13/98 stephen Added isNegativeInfinity, isPositiveInfinity -* 08/24/98 stephen Added longBitsFromDouble -* 09/08/98 stephen Minor changes for Mac Port -* 03/02/99 stephen Removed openFile(). Added AS400 support. -* Fixed EBCDIC tables -* 04/15/99 stephen Converted to C. -* 06/28/99 stephen Removed mutex locking in u_isBigEndian(). -* 08/04/99 jeffrey R. Added OS/2 changes -* 11/15/99 helena Integrated S/390 IEEE support. -* 04/26/01 Barry N. OS/400 support for uprv_getDefaultLocaleID -* 08/15/01 Steven H. OS/400 support for uprv_getDefaultCodepage -* 01/03/08 Steven L. Fake Time Support -****************************************************************************** -*/ - -// Defines _XOPEN_SOURCE for access to POSIX functions. -// Must be before any other #includes. -#include "uposixdefs.h" - -// First, the platform type. Need this for U_PLATFORM. -#include "unicode/platform.h" - -#if U_PLATFORM == U_PF_MINGW && defined __STRICT_ANSI__ -/* tzset isn't defined in strict ANSI on MinGW. */ -#undef __STRICT_ANSI__ -#endif - -/* - * Cygwin with GCC requires inclusion of time.h after the above disabling strict asci mode statement. - */ -#include <time.h> - -#if !U_PLATFORM_USES_ONLY_WIN32_API -#include <sys/time.h> -#endif - -/* include the rest of the ICU headers */ -#include "unicode/putil.h" -#include "unicode/ustring.h" -#include "putilimp.h" -#include "uassert.h" -#include "umutex.h" -#include "cmemory.h" -#include "cstring.h" -#include "locmap.h" -#include "ucln_cmn.h" -#include "charstr.h" - -/* Include standard headers. */ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <math.h> -#include <locale.h> -#include <float.h> - -#ifndef U_COMMON_IMPLEMENTATION -#error U_COMMON_IMPLEMENTATION not set - must be set for all ICU source files in common/ - see http://userguide.icu-project.org/howtouseicu -#endif - - -/* include system headers */ -#if U_PLATFORM_USES_ONLY_WIN32_API - /* - * TODO: U_PLATFORM_USES_ONLY_WIN32_API includes MinGW. - * Should Cygwin be included as well (U_PLATFORM_HAS_WIN32_API) - * to use native APIs as much as possible? - */ -#ifndef WIN32_LEAN_AND_MEAN -# define WIN32_LEAN_AND_MEAN -#endif -# define VC_EXTRALEAN -# define NOUSER -# define NOSERVICE -# define NOIME -# define NOMCX -# include <windows.h> -# include "unicode/uloc.h" -# include "wintz.h" -#elif U_PLATFORM == U_PF_OS400 -# include <float.h> -# include <qusec.h> /* error code structure */ -# include <qusrjobi.h> -# include <qliept.h> /* EPT_CALL macro - this include must be after all other "QSYSINCs" */ -# include <mih/testptr.h> /* For uprv_maximumPtr */ -#elif U_PLATFORM == U_PF_OS390 -# include "unicode/ucnv.h" /* Needed for UCNV_SWAP_LFNL_OPTION_STRING */ -#elif U_PLATFORM_IS_DARWIN_BASED || U_PLATFORM_IS_LINUX_BASED || U_PLATFORM == U_PF_BSD || U_PLATFORM == U_PF_SOLARIS -# include <limits.h> -# include <unistd.h> -# if U_PLATFORM == U_PF_SOLARIS -# ifndef _XPG4_2 -# define _XPG4_2 -# endif -# endif -#elif U_PLATFORM == U_PF_QNX -# include <sys/neutrino.h> -#endif - -/* - * Only include langinfo.h if we have a way to get the codeset. If we later - * depend on more feature, we can test on U_HAVE_NL_LANGINFO. - * - */ - -#if U_HAVE_NL_LANGINFO_CODESET -#include <langinfo.h> -#endif - -/** - * Simple things (presence of functions, etc) should just go in configure.in and be added to - * icucfg.h via autoheader. - */ -#if U_PLATFORM_IMPLEMENTS_POSIX -# if U_PLATFORM == U_PF_OS400 -# define HAVE_DLFCN_H 0 -# define HAVE_DLOPEN 0 -# else -# ifndef HAVE_DLFCN_H -# define HAVE_DLFCN_H 1 -# endif -# ifndef HAVE_DLOPEN -# define HAVE_DLOPEN 1 -# endif -# endif -# ifndef HAVE_GETTIMEOFDAY -# define HAVE_GETTIMEOFDAY 1 -# endif -#else -# define HAVE_DLFCN_H 0 -# define HAVE_DLOPEN 0 -# define HAVE_GETTIMEOFDAY 0 -#endif - -U_NAMESPACE_USE - -/* Define the extension for data files, again... */ -#define DATA_TYPE "dat" - -/* Leave this copyright notice here! */ -static const char copyright[] = U_COPYRIGHT_STRING; - -/* floating point implementations ------------------------------------------- */ - -/* We return QNAN rather than SNAN*/ -#define SIGN 0x80000000U - -/* Make it easy to define certain types of constants */ -typedef union { - int64_t i64; /* This must be defined first in order to allow the initialization to work. This is a C89 feature. */ - double d64; -} BitPatternConversion; -static const BitPatternConversion gNan = { (int64_t) INT64_C(0x7FF8000000000000) }; -static const BitPatternConversion gInf = { (int64_t) INT64_C(0x7FF0000000000000) }; - -/*--------------------------------------------------------------------------- - Platform utilities - Our general strategy is to assume we're on a POSIX platform. Platforms which - are non-POSIX must declare themselves so. The default POSIX implementation - will sometimes work for non-POSIX platforms as well (e.g., the NaN-related - functions). - ---------------------------------------------------------------------------*/ - -#if U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_OS400 -# undef U_POSIX_LOCALE -#else -# define U_POSIX_LOCALE 1 -#endif - -/* - WARNING! u_topNBytesOfDouble and u_bottomNBytesOfDouble - can't be properly optimized by the gcc compiler sometimes (i.e. gcc 3.2). -*/ -#if !IEEE_754 -static char* -u_topNBytesOfDouble(double* d, int n) -{ -#if U_IS_BIG_ENDIAN - return (char*)d; -#else - return (char*)(d + 1) - n; -#endif -} - -static char* -u_bottomNBytesOfDouble(double* d, int n) -{ -#if U_IS_BIG_ENDIAN - return (char*)(d + 1) - n; -#else - return (char*)d; -#endif -} -#endif /* !IEEE_754 */ - -#if IEEE_754 -static UBool -u_signBit(double d) { - uint8_t hiByte; -#if U_IS_BIG_ENDIAN - hiByte = *(uint8_t *)&d; -#else - hiByte = *(((uint8_t *)&d) + sizeof(double) - 1); -#endif - return (hiByte & 0x80) != 0; -} -#endif - - - -#if defined (U_DEBUG_FAKETIME) -/* Override the clock to test things without having to move the system clock. - * Assumes POSIX gettimeofday() will function - */ -UDate fakeClock_t0 = 0; /** Time to start the clock from **/ -UDate fakeClock_dt = 0; /** Offset (fake time - real time) **/ -UBool fakeClock_set = FALSE; /** True if fake clock has spun up **/ - -static UDate getUTCtime_real() { - struct timeval posixTime; - gettimeofday(&posixTime, NULL); - return (UDate)(((int64_t)posixTime.tv_sec * U_MILLIS_PER_SECOND) + (posixTime.tv_usec/1000)); -} - -static UDate getUTCtime_fake() { - static UMutex fakeClockMutex = U_MUTEX_INTIALIZER; - umtx_lock(&fakeClockMutex); - if(!fakeClock_set) { - UDate real = getUTCtime_real(); - const char *fake_start = getenv("U_FAKETIME_START"); - if((fake_start!=NULL) && (fake_start[0]!=0)) { - sscanf(fake_start,"%lf",&fakeClock_t0); - fakeClock_dt = fakeClock_t0 - real; - fprintf(stderr,"U_DEBUG_FAKETIME was set at compile time, so the ICU clock will start at a preset value\n" - "env variable U_FAKETIME_START=%.0f (%s) for an offset of %.0f ms from the current time %.0f\n", - fakeClock_t0, fake_start, fakeClock_dt, real); - } else { - fakeClock_dt = 0; - fprintf(stderr,"U_DEBUG_FAKETIME was set at compile time, but U_FAKETIME_START was not set.\n" - "Set U_FAKETIME_START to the number of milliseconds since 1/1/1970 to set the ICU clock.\n"); - } - fakeClock_set = TRUE; - } - umtx_unlock(&fakeClockMutex); - - return getUTCtime_real() + fakeClock_dt; -} -#endif - -#if U_PLATFORM_USES_ONLY_WIN32_API -typedef union { - int64_t int64; - FILETIME fileTime; -} FileTimeConversion; /* This is like a ULARGE_INTEGER */ - -/* Number of 100 nanoseconds from 1/1/1601 to 1/1/1970 */ -#define EPOCH_BIAS INT64_C(116444736000000000) -#define HECTONANOSECOND_PER_MILLISECOND 10000 - -#endif - -/*--------------------------------------------------------------------------- - Universal Implementations - These are designed to work on all platforms. Try these, and if they - don't work on your platform, then special case your platform with new - implementations. ----------------------------------------------------------------------------*/ - -U_CAPI UDate U_EXPORT2 -uprv_getUTCtime() -{ -#if defined(U_DEBUG_FAKETIME) - return getUTCtime_fake(); /* Hook for overriding the clock */ -#else - return uprv_getRawUTCtime(); -#endif -} - -/* Return UTC (GMT) time measured in milliseconds since 0:00 on 1/1/70.*/ -U_CAPI UDate U_EXPORT2 -uprv_getRawUTCtime() -{ -#if U_PLATFORM_USES_ONLY_WIN32_API - - FileTimeConversion winTime; - GetSystemTimeAsFileTime(&winTime.fileTime); - return (UDate)((winTime.int64 - EPOCH_BIAS) / HECTONANOSECOND_PER_MILLISECOND); -#else - -#if HAVE_GETTIMEOFDAY - struct timeval posixTime; - gettimeofday(&posixTime, NULL); - return (UDate)(((int64_t)posixTime.tv_sec * U_MILLIS_PER_SECOND) + (posixTime.tv_usec/1000)); -#else - time_t epochtime; - time(&epochtime); - return (UDate)epochtime * U_MILLIS_PER_SECOND; -#endif - -#endif -} - -/*----------------------------------------------------------------------------- - IEEE 754 - These methods detect and return NaN and infinity values for doubles - conforming to IEEE 754. Platforms which support this standard include X86, - Mac 680x0, Mac PowerPC, AIX RS/6000, and most others. - If this doesn't work on your platform, you have non-IEEE floating-point, and - will need to code your own versions. A naive implementation is to return 0.0 - for getNaN and getInfinity, and false for isNaN and isInfinite. - ---------------------------------------------------------------------------*/ - -U_CAPI UBool U_EXPORT2 -uprv_isNaN(double number) -{ -#if IEEE_754 - BitPatternConversion convertedNumber; - convertedNumber.d64 = number; - /* Infinity is 0x7FF0000000000000U. Anything greater than that is a NaN */ - return (UBool)((convertedNumber.i64 & U_INT64_MAX) > gInf.i64); - -#elif U_PLATFORM == U_PF_OS390 - uint32_t highBits = *(uint32_t*)u_topNBytesOfDouble(&number, - sizeof(uint32_t)); - uint32_t lowBits = *(uint32_t*)u_bottomNBytesOfDouble(&number, - sizeof(uint32_t)); - - return ((highBits & 0x7F080000L) == 0x7F080000L) && - (lowBits == 0x00000000L); - -#else - /* If your platform doesn't support IEEE 754 but *does* have an NaN value,*/ - /* you'll need to replace this default implementation with what's correct*/ - /* for your platform.*/ - return number != number; -#endif -} - -U_CAPI UBool U_EXPORT2 -uprv_isInfinite(double number) -{ -#if IEEE_754 - BitPatternConversion convertedNumber; - convertedNumber.d64 = number; - /* Infinity is exactly 0x7FF0000000000000U. */ - return (UBool)((convertedNumber.i64 & U_INT64_MAX) == gInf.i64); -#elif U_PLATFORM == U_PF_OS390 - uint32_t highBits = *(uint32_t*)u_topNBytesOfDouble(&number, - sizeof(uint32_t)); - uint32_t lowBits = *(uint32_t*)u_bottomNBytesOfDouble(&number, - sizeof(uint32_t)); - - return ((highBits & ~SIGN) == 0x70FF0000L) && (lowBits == 0x00000000L); - -#else - /* If your platform doesn't support IEEE 754 but *does* have an infinity*/ - /* value, you'll need to replace this default implementation with what's*/ - /* correct for your platform.*/ - return number == (2.0 * number); -#endif -} - -U_CAPI UBool U_EXPORT2 -uprv_isPositiveInfinity(double number) -{ -#if IEEE_754 || U_PLATFORM == U_PF_OS390 - return (UBool)(number > 0 && uprv_isInfinite(number)); -#else - return uprv_isInfinite(number); -#endif -} - -U_CAPI UBool U_EXPORT2 -uprv_isNegativeInfinity(double number) -{ -#if IEEE_754 || U_PLATFORM == U_PF_OS390 - return (UBool)(number < 0 && uprv_isInfinite(number)); - -#else - uint32_t highBits = *(uint32_t*)u_topNBytesOfDouble(&number, - sizeof(uint32_t)); - return((highBits & SIGN) && uprv_isInfinite(number)); - -#endif -} - -U_CAPI double U_EXPORT2 -uprv_getNaN() -{ -#if IEEE_754 || U_PLATFORM == U_PF_OS390 - return gNan.d64; -#else - /* If your platform doesn't support IEEE 754 but *does* have an NaN value,*/ - /* you'll need to replace this default implementation with what's correct*/ - /* for your platform.*/ - return 0.0; -#endif -} - -U_CAPI double U_EXPORT2 -uprv_getInfinity() -{ -#if IEEE_754 || U_PLATFORM == U_PF_OS390 - return gInf.d64; -#else - /* If your platform doesn't support IEEE 754 but *does* have an infinity*/ - /* value, you'll need to replace this default implementation with what's*/ - /* correct for your platform.*/ - return 0.0; -#endif -} - -U_CAPI double U_EXPORT2 -uprv_floor(double x) -{ - return floor(x); -} - -U_CAPI double U_EXPORT2 -uprv_ceil(double x) -{ - return ceil(x); -} - -U_CAPI double U_EXPORT2 -uprv_round(double x) -{ - return uprv_floor(x + 0.5); -} - -U_CAPI double U_EXPORT2 -uprv_fabs(double x) -{ - return fabs(x); -} - -U_CAPI double U_EXPORT2 -uprv_modf(double x, double* y) -{ - return modf(x, y); -} - -U_CAPI double U_EXPORT2 -uprv_fmod(double x, double y) -{ - return fmod(x, y); -} - -U_CAPI double U_EXPORT2 -uprv_pow(double x, double y) -{ - /* This is declared as "double pow(double x, double y)" */ - return pow(x, y); -} - -U_CAPI double U_EXPORT2 -uprv_pow10(int32_t x) -{ - return pow(10.0, (double)x); -} - -U_CAPI double U_EXPORT2 -uprv_fmax(double x, double y) -{ -#if IEEE_754 - /* first handle NaN*/ - if(uprv_isNaN(x) || uprv_isNaN(y)) - return uprv_getNaN(); - - /* check for -0 and 0*/ - if(x == 0.0 && y == 0.0 && u_signBit(x)) - return y; - -#endif - - /* this should work for all flt point w/o NaN and Inf special cases */ - return (x > y ? x : y); -} - -U_CAPI double U_EXPORT2 -uprv_fmin(double x, double y) -{ -#if IEEE_754 - /* first handle NaN*/ - if(uprv_isNaN(x) || uprv_isNaN(y)) - return uprv_getNaN(); - - /* check for -0 and 0*/ - if(x == 0.0 && y == 0.0 && u_signBit(y)) - return y; - -#endif - - /* this should work for all flt point w/o NaN and Inf special cases */ - return (x > y ? y : x); -} - -U_CAPI UBool U_EXPORT2 -uprv_add32_overflow(int32_t a, int32_t b, int32_t* res) { - // NOTE: Some compilers (GCC, Clang) have primitives available, like __builtin_add_overflow. - // This function could be optimized by calling one of those primitives. - auto a64 = static_cast<int64_t>(a); - auto b64 = static_cast<int64_t>(b); - int64_t res64 = a64 + b64; - *res = static_cast<int32_t>(res64); - return res64 != *res; -} - -U_CAPI UBool U_EXPORT2 -uprv_mul32_overflow(int32_t a, int32_t b, int32_t* res) { - // NOTE: Some compilers (GCC, Clang) have primitives available, like __builtin_mul_overflow. - // This function could be optimized by calling one of those primitives. - auto a64 = static_cast<int64_t>(a); - auto b64 = static_cast<int64_t>(b); - int64_t res64 = a64 * b64; - *res = static_cast<int32_t>(res64); - return res64 != *res; -} - -/** - * Truncates the given double. - * trunc(3.3) = 3.0, trunc (-3.3) = -3.0 - * This is different than calling floor() or ceil(): - * floor(3.3) = 3, floor(-3.3) = -4 - * ceil(3.3) = 4, ceil(-3.3) = -3 - */ -U_CAPI double U_EXPORT2 -uprv_trunc(double d) -{ -#if IEEE_754 - /* handle error cases*/ - if(uprv_isNaN(d)) - return uprv_getNaN(); - if(uprv_isInfinite(d)) - return uprv_getInfinity(); - - if(u_signBit(d)) /* Signbit() picks up -0.0; d<0 does not. */ - return ceil(d); - else - return floor(d); - -#else - return d >= 0 ? floor(d) : ceil(d); - -#endif -} - -/** - * Return the largest positive number that can be represented by an integer - * type of arbitrary bit length. - */ -U_CAPI double U_EXPORT2 -uprv_maxMantissa(void) -{ - return pow(2.0, DBL_MANT_DIG + 1.0) - 1.0; -} - -U_CAPI double U_EXPORT2 -uprv_log(double d) -{ - return log(d); -} - -U_CAPI void * U_EXPORT2 -uprv_maximumPtr(void * base) -{ -#if U_PLATFORM == U_PF_OS400 - /* - * With the provided function we should never be out of range of a given segment - * (a traditional/typical segment that is). Our segments have 5 bytes for the - * id and 3 bytes for the offset. The key is that the casting takes care of - * only retrieving the offset portion minus x1000. Hence, the smallest offset - * seen in a program is x001000 and when casted to an int would be 0. - * That's why we can only add 0xffefff. Otherwise, we would exceed the segment. - * - * Currently, 16MB is the current addressing limitation on i5/OS if the activation is - * non-TERASPACE. If it is TERASPACE it is 2GB - 4k(header information). - * This function determines the activation based on the pointer that is passed in and - * calculates the appropriate maximum available size for - * each pointer type (TERASPACE and non-TERASPACE) - * - * Unlike other operating systems, the pointer model isn't determined at - * compile time on i5/OS. - */ - if ((base != NULL) && (_TESTPTR(base, _C_TERASPACE_CHECK))) { - /* if it is a TERASPACE pointer the max is 2GB - 4k */ - return ((void *)(((char *)base)-((uint32_t)(base))+((uint32_t)0x7fffefff))); - } - /* otherwise 16MB since NULL ptr is not checkable or the ptr is not TERASPACE */ - return ((void *)(((char *)base)-((uint32_t)(base))+((uint32_t)0xffefff))); - -#else - return U_MAX_PTR(base); -#endif -} - -/*--------------------------------------------------------------------------- - Platform-specific Implementations - Try these, and if they don't work on your platform, then special case your - platform with new implementations. - ---------------------------------------------------------------------------*/ - -/* Generic time zone layer -------------------------------------------------- */ - -/* Time zone utilities */ -U_CAPI void U_EXPORT2 -uprv_tzset() -{ -#if defined(U_TZSET) - U_TZSET(); -#else - /* no initialization*/ -#endif -} - -U_CAPI int32_t U_EXPORT2 -uprv_timezone() -{ -#ifdef U_TIMEZONE - return U_TIMEZONE; -#else - time_t t, t1, t2; - struct tm tmrec; - int32_t tdiff = 0; - - time(&t); - uprv_memcpy( &tmrec, localtime(&t), sizeof(tmrec) ); -#if U_PLATFORM != U_PF_IPHONE - UBool dst_checked = (tmrec.tm_isdst != 0); /* daylight savings time is checked*/ -#endif - t1 = mktime(&tmrec); /* local time in seconds*/ - uprv_memcpy( &tmrec, gmtime(&t), sizeof(tmrec) ); - t2 = mktime(&tmrec); /* GMT (or UTC) in seconds*/ - tdiff = t2 - t1; - -#if U_PLATFORM != U_PF_IPHONE - /* imitate NT behaviour, which returns same timezone offset to GMT for - winter and summer. - This does not work on all platforms. For instance, on glibc on Linux - and on Mac OS 10.5, tdiff calculated above remains the same - regardless of whether DST is in effect or not. iOS is another - platform where this does not work. Linux + glibc and Mac OS 10.5 - have U_TIMEZONE defined so that this code is not reached. - */ - if (dst_checked) - tdiff += 3600; -#endif - return tdiff; -#endif -} - -/* Note that U_TZNAME does *not* have to be tzname, but if it is, - some platforms need to have it declared here. */ - -#if defined(U_TZNAME) && (U_PLATFORM == U_PF_IRIX || U_PLATFORM_IS_DARWIN_BASED) -/* RS6000 and others reject char **tzname. */ -extern U_IMPORT char *U_TZNAME[]; -#endif - -#if !UCONFIG_NO_FILE_IO && ((U_PLATFORM_IS_DARWIN_BASED && (U_PLATFORM != U_PF_IPHONE || defined(U_TIMEZONE))) || U_PLATFORM_IS_LINUX_BASED || U_PLATFORM == U_PF_BSD || U_PLATFORM == U_PF_SOLARIS) -/* These platforms are likely to use Olson timezone IDs. */ -/* common targets of the symbolic link at TZDEFAULT are: - * "/usr/share/zoneinfo/<olsonID>" default, older Linux distros, macOS to 10.12 - * "../usr/share/zoneinfo/<olsonID>" newer Linux distros: Red Hat Enterprise Linux 7, Ubuntu 16, SuSe Linux 12 - * "/usr/share/lib/zoneinfo/<olsonID>" Solaris - * "../usr/share/lib/zoneinfo/<olsonID>" Solaris - * "/var/db/timezone/zoneinfo/<olsonID>" macOS 10.13 - * To avoid checking lots of paths, just check that the target path - * before the <olsonID> ends with "/zoneinfo/", and the <olsonID> is valid. - */ - -#define CHECK_LOCALTIME_LINK 1 -#if U_PLATFORM_IS_DARWIN_BASED -#include <tzfile.h> -#define TZZONEINFO (TZDIR "/") -#elif U_PLATFORM == U_PF_SOLARIS -#define TZDEFAULT "/etc/localtime" -#define TZZONEINFO "/usr/share/lib/zoneinfo/" -#define TZ_ENV_CHECK "localtime" -#else -#define TZDEFAULT "/etc/localtime" -#define TZZONEINFO "/usr/share/zoneinfo/" -#endif -#define TZZONEINFOTAIL "/zoneinfo/" -#if U_HAVE_DIRENT_H -#define TZFILE_SKIP "posixrules" /* tz file to skip when searching. */ -/* Some Linux distributions have 'localtime' in /usr/share/zoneinfo - symlinked to /etc/localtime, which makes searchForTZFile return - 'localtime' when it's the first match. */ -#define TZFILE_SKIP2 "localtime" -#define SEARCH_TZFILE -#include <dirent.h> /* Needed to search through system timezone files */ -#endif -static char gTimeZoneBuffer[PATH_MAX]; -static char *gTimeZoneBufferPtr = NULL; -#endif - -#if !U_PLATFORM_USES_ONLY_WIN32_API -#define isNonDigit(ch) (ch < '0' || '9' < ch) -static UBool isValidOlsonID(const char *id) { - int32_t idx = 0; - - /* Determine if this is something like Iceland (Olson ID) - or AST4ADT (non-Olson ID) */ - while (id[idx] && isNonDigit(id[idx]) && id[idx] != ',') { - idx++; - } - - /* If we went through the whole string, then it might be okay. - The timezone is sometimes set to "CST-7CDT", "CST6CDT5,J129,J131/19:30", - "GRNLNDST3GRNLNDDT" or similar, so we cannot use it. - The rest of the time it could be an Olson ID. George */ - return (UBool)(id[idx] == 0 - || uprv_strcmp(id, "PST8PDT") == 0 - || uprv_strcmp(id, "MST7MDT") == 0 - || uprv_strcmp(id, "CST6CDT") == 0 - || uprv_strcmp(id, "EST5EDT") == 0); -} - -/* On some Unix-like OS, 'posix' subdirectory in - /usr/share/zoneinfo replicates the top-level contents. 'right' - subdirectory has the same set of files, but individual files - are different from those in the top-level directory or 'posix' - because 'right' has files for TAI (Int'l Atomic Time) while 'posix' - has files for UTC. - When the first match for /etc/localtime is in either of them - (usually in posix because 'right' has different file contents), - or TZ environment variable points to one of them, createTimeZone - fails because, say, 'posix/America/New_York' is not an Olson - timezone id ('America/New_York' is). So, we have to skip - 'posix/' and 'right/' at the beginning. */ -static void skipZoneIDPrefix(const char** id) { - if (uprv_strncmp(*id, "posix/", 6) == 0 - || uprv_strncmp(*id, "right/", 6) == 0) - { - *id += 6; - } -} -#endif - -#if defined(U_TZNAME) && !U_PLATFORM_USES_ONLY_WIN32_API - -#define CONVERT_HOURS_TO_SECONDS(offset) (int32_t)(offset*3600) -typedef struct OffsetZoneMapping { - int32_t offsetSeconds; - int32_t daylightType; /* 0=U_DAYLIGHT_NONE, 1=daylight in June-U_DAYLIGHT_JUNE, 2=daylight in December=U_DAYLIGHT_DECEMBER*/ - const char *stdID; - const char *dstID; - const char *olsonID; -} OffsetZoneMapping; - -enum { U_DAYLIGHT_NONE=0,U_DAYLIGHT_JUNE=1,U_DAYLIGHT_DECEMBER=2 }; - -/* -This list tries to disambiguate a set of abbreviated timezone IDs and offsets -and maps it to an Olson ID. -Before adding anything to this list, take a look at -icu/source/tools/tzcode/tz.alias -Sometimes no daylight savings (0) is important to define due to aliases. -This list can be tested with icu/source/test/compat/tzone.pl -More values could be added to daylightType to increase precision. -*/ -static const struct OffsetZoneMapping OFFSET_ZONE_MAPPINGS[] = { - {-45900, 2, "CHAST", "CHADT", "Pacific/Chatham"}, - {-43200, 1, "PETT", "PETST", "Asia/Kamchatka"}, - {-43200, 2, "NZST", "NZDT", "Pacific/Auckland"}, - {-43200, 1, "ANAT", "ANAST", "Asia/Anadyr"}, - {-39600, 1, "MAGT", "MAGST", "Asia/Magadan"}, - {-37800, 2, "LHST", "LHST", "Australia/Lord_Howe"}, - {-36000, 2, "EST", "EST", "Australia/Sydney"}, - {-36000, 1, "SAKT", "SAKST", "Asia/Sakhalin"}, - {-36000, 1, "VLAT", "VLAST", "Asia/Vladivostok"}, - {-34200, 2, "CST", "CST", "Australia/South"}, - {-32400, 1, "YAKT", "YAKST", "Asia/Yakutsk"}, - {-32400, 1, "CHOT", "CHOST", "Asia/Choibalsan"}, - {-31500, 2, "CWST", "CWST", "Australia/Eucla"}, - {-28800, 1, "IRKT", "IRKST", "Asia/Irkutsk"}, - {-28800, 1, "ULAT", "ULAST", "Asia/Ulaanbaatar"}, - {-28800, 2, "WST", "WST", "Australia/West"}, - {-25200, 1, "HOVT", "HOVST", "Asia/Hovd"}, - {-25200, 1, "KRAT", "KRAST", "Asia/Krasnoyarsk"}, - {-21600, 1, "NOVT", "NOVST", "Asia/Novosibirsk"}, - {-21600, 1, "OMST", "OMSST", "Asia/Omsk"}, - {-18000, 1, "YEKT", "YEKST", "Asia/Yekaterinburg"}, - {-14400, 1, "SAMT", "SAMST", "Europe/Samara"}, - {-14400, 1, "AMT", "AMST", "Asia/Yerevan"}, - {-14400, 1, "AZT", "AZST", "Asia/Baku"}, - {-10800, 1, "AST", "ADT", "Asia/Baghdad"}, - {-10800, 1, "MSK", "MSD", "Europe/Moscow"}, - {-10800, 1, "VOLT", "VOLST", "Europe/Volgograd"}, - {-7200, 0, "EET", "CEST", "Africa/Tripoli"}, - {-7200, 1, "EET", "EEST", "Europe/Athens"}, /* Conflicts with Africa/Cairo */ - {-7200, 1, "IST", "IDT", "Asia/Jerusalem"}, - {-3600, 0, "CET", "WEST", "Africa/Algiers"}, - {-3600, 2, "WAT", "WAST", "Africa/Windhoek"}, - {0, 1, "GMT", "IST", "Europe/Dublin"}, - {0, 1, "GMT", "BST", "Europe/London"}, - {0, 0, "WET", "WEST", "Africa/Casablanca"}, - {0, 0, "WET", "WET", "Africa/El_Aaiun"}, - {3600, 1, "AZOT", "AZOST", "Atlantic/Azores"}, - {3600, 1, "EGT", "EGST", "America/Scoresbysund"}, - {10800, 1, "PMST", "PMDT", "America/Miquelon"}, - {10800, 2, "UYT", "UYST", "America/Montevideo"}, - {10800, 1, "WGT", "WGST", "America/Godthab"}, - {10800, 2, "BRT", "BRST", "Brazil/East"}, - {12600, 1, "NST", "NDT", "America/St_Johns"}, - {14400, 1, "AST", "ADT", "Canada/Atlantic"}, - {14400, 2, "AMT", "AMST", "America/Cuiaba"}, - {14400, 2, "CLT", "CLST", "Chile/Continental"}, - {14400, 2, "FKT", "FKST", "Atlantic/Stanley"}, - {14400, 2, "PYT", "PYST", "America/Asuncion"}, - {18000, 1, "CST", "CDT", "America/Havana"}, - {18000, 1, "EST", "EDT", "US/Eastern"}, /* Conflicts with America/Grand_Turk */ - {21600, 2, "EAST", "EASST", "Chile/EasterIsland"}, - {21600, 0, "CST", "MDT", "Canada/Saskatchewan"}, - {21600, 0, "CST", "CDT", "America/Guatemala"}, - {21600, 1, "CST", "CDT", "US/Central"}, /* Conflicts with Mexico/General */ - {25200, 1, "MST", "MDT", "US/Mountain"}, /* Conflicts with Mexico/BajaSur */ - {28800, 0, "PST", "PST", "Pacific/Pitcairn"}, - {28800, 1, "PST", "PDT", "US/Pacific"}, /* Conflicts with Mexico/BajaNorte */ - {32400, 1, "AKST", "AKDT", "US/Alaska"}, - {36000, 1, "HAST", "HADT", "US/Aleutian"} -}; - -/*#define DEBUG_TZNAME*/ - -static const char* remapShortTimeZone(const char *stdID, const char *dstID, int32_t daylightType, int32_t offset) -{ - int32_t idx; -#ifdef DEBUG_TZNAME - fprintf(stderr, "TZ=%s std=%s dst=%s daylight=%d offset=%d\n", getenv("TZ"), stdID, dstID, daylightType, offset); -#endif - for (idx = 0; idx < UPRV_LENGTHOF(OFFSET_ZONE_MAPPINGS); idx++) - { - if (offset == OFFSET_ZONE_MAPPINGS[idx].offsetSeconds - && daylightType == OFFSET_ZONE_MAPPINGS[idx].daylightType - && strcmp(OFFSET_ZONE_MAPPINGS[idx].stdID, stdID) == 0 - && strcmp(OFFSET_ZONE_MAPPINGS[idx].dstID, dstID) == 0) - { - return OFFSET_ZONE_MAPPINGS[idx].olsonID; - } - } - return NULL; -} -#endif - -#ifdef SEARCH_TZFILE -#define MAX_READ_SIZE 512 - -typedef struct DefaultTZInfo { - char* defaultTZBuffer; - int64_t defaultTZFileSize; - FILE* defaultTZFilePtr; - UBool defaultTZstatus; - int32_t defaultTZPosition; -} DefaultTZInfo; - -/* - * This method compares the two files given to see if they are a match. - * It is currently use to compare two TZ files. - */ -static UBool compareBinaryFiles(const char* defaultTZFileName, const char* TZFileName, DefaultTZInfo* tzInfo) { - FILE* file; - int64_t sizeFile; - int64_t sizeFileLeft; - int32_t sizeFileRead; - int32_t sizeFileToRead; - char bufferFile[MAX_READ_SIZE]; - UBool result = TRUE; - - if (tzInfo->defaultTZFilePtr == NULL) { - tzInfo->defaultTZFilePtr = fopen(defaultTZFileName, "r"); - } - file = fopen(TZFileName, "r"); - - tzInfo->defaultTZPosition = 0; /* reset position to begin search */ - - if (file != NULL && tzInfo->defaultTZFilePtr != NULL) { - /* First check that the file size are equal. */ - if (tzInfo->defaultTZFileSize == 0) { - fseek(tzInfo->defaultTZFilePtr, 0, SEEK_END); - tzInfo->defaultTZFileSize = ftell(tzInfo->defaultTZFilePtr); - } - fseek(file, 0, SEEK_END); - sizeFile = ftell(file); - sizeFileLeft = sizeFile; - - if (sizeFile != tzInfo->defaultTZFileSize) { - result = FALSE; - } else { - /* Store the data from the files in seperate buffers and - * compare each byte to determine equality. - */ - if (tzInfo->defaultTZBuffer == NULL) { - rewind(tzInfo->defaultTZFilePtr); - tzInfo->defaultTZBuffer = (char*)uprv_malloc(sizeof(char) * tzInfo->defaultTZFileSize); - sizeFileRead = fread(tzInfo->defaultTZBuffer, 1, tzInfo->defaultTZFileSize, tzInfo->defaultTZFilePtr); - } - rewind(file); - while(sizeFileLeft > 0) { - uprv_memset(bufferFile, 0, MAX_READ_SIZE); - sizeFileToRead = sizeFileLeft < MAX_READ_SIZE ? sizeFileLeft : MAX_READ_SIZE; - - sizeFileRead = fread(bufferFile, 1, sizeFileToRead, file); - if (memcmp(tzInfo->defaultTZBuffer + tzInfo->defaultTZPosition, bufferFile, sizeFileRead) != 0) { - result = FALSE; - break; - } - sizeFileLeft -= sizeFileRead; - tzInfo->defaultTZPosition += sizeFileRead; - } - } - } else { - result = FALSE; - } - - if (file != NULL) { - fclose(file); - } - - return result; -} - - -/* dirent also lists two entries: "." and ".." that we can safely ignore. */ -#define SKIP1 "." -#define SKIP2 ".." -static UBool U_CALLCONV putil_cleanup(void); -static CharString *gSearchTZFileResult = NULL; - -/* - * This method recursively traverses the directory given for a matching TZ file and returns the first match. - * This function is not thread safe - it uses a global, gSearchTZFileResult, to hold its results. - */ -static char* searchForTZFile(const char* path, DefaultTZInfo* tzInfo) { - DIR* dirp = NULL; - struct dirent* dirEntry = NULL; - char* result = NULL; - UErrorCode status = U_ZERO_ERROR; - - /* Save the current path */ - CharString curpath(path, -1, status); - if (U_FAILURE(status)) { - goto cleanupAndReturn; - } - - dirp = opendir(path); - if (dirp == NULL) { - goto cleanupAndReturn; - } - - if (gSearchTZFileResult == NULL) { - gSearchTZFileResult = new CharString; - if (gSearchTZFileResult == NULL) { - goto cleanupAndReturn; - } - ucln_common_registerCleanup(UCLN_COMMON_PUTIL, putil_cleanup); - } - - /* Check each entry in the directory. */ - while((dirEntry = readdir(dirp)) != NULL) { - const char* dirName = dirEntry->d_name; - if (uprv_strcmp(dirName, SKIP1) != 0 && uprv_strcmp(dirName, SKIP2) != 0 - && uprv_strcmp(TZFILE_SKIP, dirName) != 0 && uprv_strcmp(TZFILE_SKIP2, dirName) != 0) { - /* Create a newpath with the new entry to test each entry in the directory. */ - CharString newpath(curpath, status); - newpath.append(dirName, -1, status); - if (U_FAILURE(status)) { - break; - } - - DIR* subDirp = NULL; - if ((subDirp = opendir(newpath.data())) != NULL) { - /* If this new path is a directory, make a recursive call with the newpath. */ - closedir(subDirp); - newpath.append('/', status); - if (U_FAILURE(status)) { - break; - } - result = searchForTZFile(newpath.data(), tzInfo); - /* - Have to get out here. Otherwise, we'd keep looking - and return the first match in the top-level directory - if there's a match in the top-level. If not, this function - would return NULL and set gTimeZoneBufferPtr to NULL in initDefault(). - It worked without this in most cases because we have a fallback of calling - localtime_r to figure out the default timezone. - */ - if (result != NULL) - break; - } else { - if(compareBinaryFiles(TZDEFAULT, newpath.data(), tzInfo)) { - int32_t amountToSkip = sizeof(TZZONEINFO) - 1; - if (amountToSkip > newpath.length()) { - amountToSkip = newpath.length(); - } - const char* zoneid = newpath.data() + amountToSkip; - skipZoneIDPrefix(&zoneid); - gSearchTZFileResult->clear(); - gSearchTZFileResult->append(zoneid, -1, status); - if (U_FAILURE(status)) { - break; - } - result = gSearchTZFileResult->data(); - /* Get out after the first one found. */ - break; - } - } - } - } - - cleanupAndReturn: - if (dirp) { - closedir(dirp); - } - return result; -} -#endif - -U_CAPI void U_EXPORT2 -uprv_tzname_clear_cache() -{ -#if defined(CHECK_LOCALTIME_LINK) && !defined(DEBUG_SKIP_LOCALTIME_LINK) - gTimeZoneBufferPtr = NULL; -#endif -} - -U_CAPI const char* U_EXPORT2 -uprv_tzname(int n) -{ - (void)n; // Avoid unreferenced parameter warning. - const char *tzid = NULL; -#if U_PLATFORM_USES_ONLY_WIN32_API - tzid = uprv_detectWindowsTimeZone(); - - if (tzid != NULL) { - return tzid; - } - -#ifndef U_TZNAME - // The return value is free'd in timezone.cpp on Windows because - // the other code path returns a pointer to a heap location. - // If we don't have a name already, then tzname wouldn't be any - // better, so just fall back. - return uprv_strdup(""); -#endif // !U_TZNAME - -#else - -/*#if U_PLATFORM_IS_DARWIN_BASED - int ret; - - tzid = getenv("TZFILE"); - if (tzid != NULL) { - return tzid; - } -#endif*/ - -/* This code can be temporarily disabled to test tzname resolution later on. */ -#ifndef DEBUG_TZNAME - tzid = getenv("TZ"); - if (tzid != NULL && isValidOlsonID(tzid) -#if U_PLATFORM == U_PF_SOLARIS - /* When TZ equals localtime on Solaris, check the /etc/localtime file. */ - && uprv_strcmp(tzid, TZ_ENV_CHECK) != 0 -#endif - ) { - /* The colon forces tzset() to treat the remainder as zoneinfo path */ - if (tzid[0] == ':') { - tzid++; - } - /* This might be a good Olson ID. */ - skipZoneIDPrefix(&tzid); - return tzid; - } - /* else U_TZNAME will give a better result. */ -#endif - -#if defined(CHECK_LOCALTIME_LINK) && !defined(DEBUG_SKIP_LOCALTIME_LINK) - /* Caller must handle threading issues */ - if (gTimeZoneBufferPtr == NULL) { - /* - This is a trick to look at the name of the link to get the Olson ID - because the tzfile contents is underspecified. - This isn't guaranteed to work because it may not be a symlink. - */ - int32_t ret = (int32_t)readlink(TZDEFAULT, gTimeZoneBuffer, sizeof(gTimeZoneBuffer)-1); - if (0 < ret) { - int32_t tzZoneInfoTailLen = uprv_strlen(TZZONEINFOTAIL); - gTimeZoneBuffer[ret] = 0; - char * tzZoneInfoTailPtr = uprv_strstr(gTimeZoneBuffer, TZZONEINFOTAIL); - - if (tzZoneInfoTailPtr != NULL - && isValidOlsonID(tzZoneInfoTailPtr + tzZoneInfoTailLen)) - { - return (gTimeZoneBufferPtr = tzZoneInfoTailPtr + tzZoneInfoTailLen); - } - } else { -#if defined(SEARCH_TZFILE) - DefaultTZInfo* tzInfo = (DefaultTZInfo*)uprv_malloc(sizeof(DefaultTZInfo)); - if (tzInfo != NULL) { - tzInfo->defaultTZBuffer = NULL; - tzInfo->defaultTZFileSize = 0; - tzInfo->defaultTZFilePtr = NULL; - tzInfo->defaultTZstatus = FALSE; - tzInfo->defaultTZPosition = 0; - - gTimeZoneBufferPtr = searchForTZFile(TZZONEINFO, tzInfo); - - /* Free previously allocated memory */ - if (tzInfo->defaultTZBuffer != NULL) { - uprv_free(tzInfo->defaultTZBuffer); - } - if (tzInfo->defaultTZFilePtr != NULL) { - fclose(tzInfo->defaultTZFilePtr); - } - uprv_free(tzInfo); - } - - if (gTimeZoneBufferPtr != NULL && isValidOlsonID(gTimeZoneBufferPtr)) { - return gTimeZoneBufferPtr; - } -#endif - } - } - else { - return gTimeZoneBufferPtr; - } -#endif -#endif - -#ifdef U_TZNAME -#if U_PLATFORM_USES_ONLY_WIN32_API - /* The return value is free'd in timezone.cpp on Windows because - * the other code path returns a pointer to a heap location. */ - return uprv_strdup(U_TZNAME[n]); -#else - /* - U_TZNAME is usually a non-unique abbreviation, which isn't normally usable. - So we remap the abbreviation to an olson ID. - - Since Windows exposes a little more timezone information, - we normally don't use this code on Windows because - uprv_detectWindowsTimeZone should have already given the correct answer. - */ - { - struct tm juneSol, decemberSol; - int daylightType; - static const time_t juneSolstice=1182478260; /*2007-06-21 18:11 UT*/ - static const time_t decemberSolstice=1198332540; /*2007-12-22 06:09 UT*/ - - /* This probing will tell us when daylight savings occurs. */ - localtime_r(&juneSolstice, &juneSol); - localtime_r(&decemberSolstice, &decemberSol); - if(decemberSol.tm_isdst > 0) { - daylightType = U_DAYLIGHT_DECEMBER; - } else if(juneSol.tm_isdst > 0) { - daylightType = U_DAYLIGHT_JUNE; - } else { - daylightType = U_DAYLIGHT_NONE; - } - tzid = remapShortTimeZone(U_TZNAME[0], U_TZNAME[1], daylightType, uprv_timezone()); - if (tzid != NULL) { - return tzid; - } - } - return U_TZNAME[n]; -#endif -#else - return ""; -#endif -} - -/* Get and set the ICU data directory --------------------------------------- */ - -static icu::UInitOnce gDataDirInitOnce = U_INITONCE_INITIALIZER; -static char *gDataDirectory = NULL; - -UInitOnce gTimeZoneFilesInitOnce = U_INITONCE_INITIALIZER; -static CharString *gTimeZoneFilesDirectory = NULL; - -#if U_POSIX_LOCALE || U_PLATFORM_USES_ONLY_WIN32_API - static const char *gCorrectedPOSIXLocale = NULL; /* Sometimes heap allocated */ - static bool gCorrectedPOSIXLocaleHeapAllocated = false; -#endif - -static UBool U_CALLCONV putil_cleanup(void) -{ - if (gDataDirectory && *gDataDirectory) { - uprv_free(gDataDirectory); - } - gDataDirectory = NULL; - gDataDirInitOnce.reset(); - - delete gTimeZoneFilesDirectory; - gTimeZoneFilesDirectory = NULL; - gTimeZoneFilesInitOnce.reset(); - -#ifdef SEARCH_TZFILE - delete gSearchTZFileResult; - gSearchTZFileResult = NULL; -#endif - -#if U_POSIX_LOCALE || U_PLATFORM_USES_ONLY_WIN32_API - if (gCorrectedPOSIXLocale && gCorrectedPOSIXLocaleHeapAllocated) { - uprv_free(const_cast<char *>(gCorrectedPOSIXLocale)); - gCorrectedPOSIXLocale = NULL; - gCorrectedPOSIXLocaleHeapAllocated = false; - } -#endif - return TRUE; -} - -/* - * Set the data directory. - * Make a copy of the passed string, and set the global data dir to point to it. - */ -U_CAPI void U_EXPORT2 -u_setDataDirectory(const char *directory) { - char *newDataDir; - int32_t length; - - if(directory==NULL || *directory==0) { - /* A small optimization to prevent the malloc and copy when the - shared library is used, and this is a way to make sure that NULL - is never returned. - */ - newDataDir = (char *)""; - } - else { - length=(int32_t)uprv_strlen(directory); - newDataDir = (char *)uprv_malloc(length + 2); - /* Exit out if newDataDir could not be created. */ - if (newDataDir == NULL) { - return; - } - uprv_strcpy(newDataDir, directory); - -#if (U_FILE_SEP_CHAR != U_FILE_ALT_SEP_CHAR) - { - char *p; - while((p = uprv_strchr(newDataDir, U_FILE_ALT_SEP_CHAR)) != NULL) { - *p = U_FILE_SEP_CHAR; - } - } -#endif - } - - if (gDataDirectory && *gDataDirectory) { - uprv_free(gDataDirectory); - } - gDataDirectory = newDataDir; - ucln_common_registerCleanup(UCLN_COMMON_PUTIL, putil_cleanup); -} - -U_CAPI UBool U_EXPORT2 -uprv_pathIsAbsolute(const char *path) -{ - if(!path || !*path) { - return FALSE; - } - - if(*path == U_FILE_SEP_CHAR) { - return TRUE; - } - -#if (U_FILE_SEP_CHAR != U_FILE_ALT_SEP_CHAR) - if(*path == U_FILE_ALT_SEP_CHAR) { - return TRUE; - } -#endif - -#if U_PLATFORM_USES_ONLY_WIN32_API - if( (((path[0] >= 'A') && (path[0] <= 'Z')) || - ((path[0] >= 'a') && (path[0] <= 'z'))) && - path[1] == ':' ) { - return TRUE; - } -#endif - - return FALSE; -} - -/* Backup setting of ICU_DATA_DIR_PREFIX_ENV_VAR - (needed for some Darwin ICU build environments) */ -#if U_PLATFORM_IS_DARWIN_BASED && TARGET_OS_SIMULATOR -# if !defined(ICU_DATA_DIR_PREFIX_ENV_VAR) -# define ICU_DATA_DIR_PREFIX_ENV_VAR "IPHONE_SIMULATOR_ROOT" -# endif -#endif - -#if U_PLATFORM_HAS_WINUWP_API != 0 -// Helper function to get the ICU Data Directory under the Windows directory location. -static BOOL U_CALLCONV getIcuDataDirectoryUnderWindowsDirectory(char* directoryBuffer, UINT bufferLength) -{ -#if defined(ICU_DATA_DIR_WINDOWS) - wchar_t windowsPath[MAX_PATH]; - char windowsPathUtf8[MAX_PATH]; - - UINT length = GetSystemWindowsDirectoryW(windowsPath, UPRV_LENGTHOF(windowsPath)); - if ((length > 0) && (length < (UPRV_LENGTHOF(windowsPath) - 1))) { - // Convert UTF-16 to a UTF-8 string. - UErrorCode status = U_ZERO_ERROR; - int32_t windowsPathUtf8Len = 0; - u_strToUTF8(windowsPathUtf8, static_cast<int32_t>(UPRV_LENGTHOF(windowsPathUtf8)), - &windowsPathUtf8Len, reinterpret_cast<const UChar*>(windowsPath), -1, &status); - - if (U_SUCCESS(status) && (status != U_STRING_NOT_TERMINATED_WARNING) && - (windowsPathUtf8Len < (UPRV_LENGTHOF(windowsPathUtf8) - 1))) { - // Ensure it always has a separator, so we can append the ICU data path. - if (windowsPathUtf8[windowsPathUtf8Len - 1] != U_FILE_SEP_CHAR) { - windowsPathUtf8[windowsPathUtf8Len++] = U_FILE_SEP_CHAR; - windowsPathUtf8[windowsPathUtf8Len] = '\0'; - } - // Check if the concatenated string will fit. - if ((windowsPathUtf8Len + UPRV_LENGTHOF(ICU_DATA_DIR_WINDOWS)) < bufferLength) { - uprv_strcpy(directoryBuffer, windowsPathUtf8); - uprv_strcat(directoryBuffer, ICU_DATA_DIR_WINDOWS); - return TRUE; - } - } - } -#endif - - return FALSE; -} -#endif - -static void U_CALLCONV dataDirectoryInitFn() { - /* If we already have the directory, then return immediately. Will happen if user called - * u_setDataDirectory(). - */ - if (gDataDirectory) { - return; - } - - const char *path = NULL; -#if defined(ICU_DATA_DIR_PREFIX_ENV_VAR) - char datadir_path_buffer[PATH_MAX]; -#endif - - /* - When ICU_NO_USER_DATA_OVERRIDE is defined, users aren't allowed to - override ICU's data with the ICU_DATA environment variable. This prevents - problems where multiple custom copies of ICU's specific version of data - are installed on a system. Either the application must define the data - directory with u_setDataDirectory, define ICU_DATA_DIR when compiling - ICU, set the data with udata_setCommonData or trust that all of the - required data is contained in ICU's data library that contains - the entry point defined by U_ICUDATA_ENTRY_POINT. - - There may also be some platforms where environment variables - are not allowed. - */ -# if !defined(ICU_NO_USER_DATA_OVERRIDE) && !UCONFIG_NO_FILE_IO - /* First try to get the environment variable */ -# if U_PLATFORM_HAS_WINUWP_API == 0 // Windows UWP does not support getenv - path=getenv("ICU_DATA"); -# endif -# endif - - /* ICU_DATA_DIR may be set as a compile option. - * U_ICU_DATA_DEFAULT_DIR is provided and is set by ICU at compile time - * and is used only when data is built in archive mode eliminating the need - * for ICU_DATA_DIR to be set. U_ICU_DATA_DEFAULT_DIR is set to the installation - * directory of the data dat file. Users should use ICU_DATA_DIR if they want to - * set their own path. - */ -#if defined(ICU_DATA_DIR) || defined(U_ICU_DATA_DEFAULT_DIR) - if(path==NULL || *path==0) { -# if defined(ICU_DATA_DIR_PREFIX_ENV_VAR) - const char *prefix = getenv(ICU_DATA_DIR_PREFIX_ENV_VAR); -# endif -# ifdef ICU_DATA_DIR - path=ICU_DATA_DIR; -# else - path=U_ICU_DATA_DEFAULT_DIR; -# endif -# if defined(ICU_DATA_DIR_PREFIX_ENV_VAR) - if (prefix != NULL) { - snprintf(datadir_path_buffer, PATH_MAX, "%s%s", prefix, path); - path=datadir_path_buffer; - } -# endif - } -#endif - -#if U_PLATFORM_HAS_WINUWP_API != 0 && defined(ICU_DATA_DIR_WINDOWS) - char datadir_path_buffer[MAX_PATH]; - if (getIcuDataDirectoryUnderWindowsDirectory(datadir_path_buffer, UPRV_LENGTHOF(datadir_path_buffer))) { - path = datadir_path_buffer; - } -#endif - - if(path==NULL) { - /* It looks really bad, set it to something. */ - path = ""; - } - - u_setDataDirectory(path); - return; -} - -U_CAPI const char * U_EXPORT2 -u_getDataDirectory(void) { - umtx_initOnce(gDataDirInitOnce, &dataDirectoryInitFn); - return gDataDirectory; -} - -static void setTimeZoneFilesDir(const char *path, UErrorCode &status) { - if (U_FAILURE(status)) { - return; - } - gTimeZoneFilesDirectory->clear(); - gTimeZoneFilesDirectory->append(path, status); -#if (U_FILE_SEP_CHAR != U_FILE_ALT_SEP_CHAR) - char *p = gTimeZoneFilesDirectory->data(); - while ((p = uprv_strchr(p, U_FILE_ALT_SEP_CHAR)) != NULL) { - *p = U_FILE_SEP_CHAR; - } -#endif -} - -#define TO_STRING(x) TO_STRING_2(x) -#define TO_STRING_2(x) #x - -static void U_CALLCONV TimeZoneDataDirInitFn(UErrorCode &status) { - U_ASSERT(gTimeZoneFilesDirectory == NULL); - ucln_common_registerCleanup(UCLN_COMMON_PUTIL, putil_cleanup); - gTimeZoneFilesDirectory = new CharString(); - if (gTimeZoneFilesDirectory == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - return; - } - - const char *dir = ""; - -#if U_PLATFORM_HAS_WINUWP_API != 0 - // The UWP version does not support the environment variable setting, but can possibly pick them up from the Windows directory. - char datadir_path_buffer[MAX_PATH]; - if (getIcuDataDirectoryUnderWindowsDirectory(datadir_path_buffer, UPRV_LENGTHOF(datadir_path_buffer))) { - dir = datadir_path_buffer; - } -#else - dir = getenv("ICU_TIMEZONE_FILES_DIR"); -#endif // U_PLATFORM_HAS_WINUWP_API - -#if defined(U_TIMEZONE_FILES_DIR) - if (dir == NULL) { - // Build time configuration setting. - dir = TO_STRING(U_TIMEZONE_FILES_DIR); - } -#endif - - if (dir == NULL) { - dir = ""; - } - - setTimeZoneFilesDir(dir, status); -} - - -U_CAPI const char * U_EXPORT2 -u_getTimeZoneFilesDirectory(UErrorCode *status) { - umtx_initOnce(gTimeZoneFilesInitOnce, &TimeZoneDataDirInitFn, *status); - return U_SUCCESS(*status) ? gTimeZoneFilesDirectory->data() : ""; -} - -U_CAPI void U_EXPORT2 -u_setTimeZoneFilesDirectory(const char *path, UErrorCode *status) { - umtx_initOnce(gTimeZoneFilesInitOnce, &TimeZoneDataDirInitFn, *status); - setTimeZoneFilesDir(path, *status); - - // Note: this function does some extra churn, first setting based on the - // environment, then immediately replacing with the value passed in. - // The logic is simpler that way, and performance shouldn't be an issue. -} - - -#if U_POSIX_LOCALE -/* A helper function used by uprv_getPOSIXIDForDefaultLocale and - * uprv_getPOSIXIDForDefaultCodepage. Returns the posix locale id for - * LC_CTYPE and LC_MESSAGES. It doesn't support other locale categories. - */ -static const char *uprv_getPOSIXIDForCategory(int category) -{ - const char* posixID = NULL; - if (category == LC_MESSAGES || category == LC_CTYPE) { - /* - * On Solaris two different calls to setlocale can result in - * different values. Only get this value once. - * - * We must check this first because an application can set this. - * - * LC_ALL can't be used because it's platform dependent. The LANG - * environment variable seems to affect LC_CTYPE variable by default. - * Here is what setlocale(LC_ALL, NULL) can return. - * HPUX can return 'C C C C C C C' - * Solaris can return /en_US/C/C/C/C/C on the second try. - * Linux can return LC_CTYPE=C;LC_NUMERIC=C;... - * - * The default codepage detection also needs to use LC_CTYPE. - * - * Do not call setlocale(LC_*, "")! Using an empty string instead - * of NULL, will modify the libc behavior. - */ - posixID = setlocale(category, NULL); - if ((posixID == 0) - || (uprv_strcmp("C", posixID) == 0) - || (uprv_strcmp("POSIX", posixID) == 0)) - { - /* Maybe we got some garbage. Try something more reasonable */ - posixID = getenv("LC_ALL"); - /* Solaris speaks POSIX - See IEEE Std 1003.1-2008 - * This is needed to properly handle empty env. variables - */ -#if U_PLATFORM == U_PF_SOLARIS - if ((posixID == 0) || (posixID[0] == '\0')) { - posixID = getenv(category == LC_MESSAGES ? "LC_MESSAGES" : "LC_CTYPE"); - if ((posixID == 0) || (posixID[0] == '\0')) { -#else - if (posixID == 0) { - posixID = getenv(category == LC_MESSAGES ? "LC_MESSAGES" : "LC_CTYPE"); - if (posixID == 0) { -#endif - posixID = getenv("LANG"); - } - } - } - } - if ((posixID==0) - || (uprv_strcmp("C", posixID) == 0) - || (uprv_strcmp("POSIX", posixID) == 0)) - { - /* Nothing worked. Give it a nice POSIX default value. */ - posixID = "en_US_POSIX"; - // Note: this test will not catch 'C.UTF-8', - // that will be handled in uprv_getDefaultLocaleID(). - // Leave this mapping here for the uprv_getPOSIXIDForDefaultCodepage() - // caller which expects to see "en_US_POSIX" in many branches. - } - return posixID; -} - -/* Return just the POSIX id for the default locale, whatever happens to be in - * it. It gets the value from LC_MESSAGES and indirectly from LC_ALL and LANG. - */ -static const char *uprv_getPOSIXIDForDefaultLocale(void) -{ - static const char* posixID = NULL; - if (posixID == 0) { - posixID = uprv_getPOSIXIDForCategory(LC_MESSAGES); - } - return posixID; -} - -#if !U_CHARSET_IS_UTF8 -/* Return just the POSIX id for the default codepage, whatever happens to be in - * it. It gets the value from LC_CTYPE and indirectly from LC_ALL and LANG. - */ -static const char *uprv_getPOSIXIDForDefaultCodepage(void) -{ - static const char* posixID = NULL; - if (posixID == 0) { - posixID = uprv_getPOSIXIDForCategory(LC_CTYPE); - } - return posixID; -} -#endif -#endif - -/* NOTE: The caller should handle thread safety */ -U_CAPI const char* U_EXPORT2 -uprv_getDefaultLocaleID() -{ -#if U_POSIX_LOCALE -/* - Note that: (a '!' means the ID is improper somehow) - LC_ALL ----> default_loc codepage --------------------------------------------------------- - ab.CD ab CD - ab@CD ab__CD - - ab@CD.EF ab__CD EF - - ab_CD.EF@GH ab_CD_GH EF - -Some 'improper' ways to do the same as above: - ! ab_CD@GH.EF ab_CD_GH EF - ! ab_CD.EF@GH.IJ ab_CD_GH EF - ! ab_CD@ZZ.EF@GH.IJ ab_CD_GH EF - - _CD@GH _CD_GH - - _CD.EF@GH _CD_GH EF - -The variant cannot have dots in it. -The 'rightmost' variant (@xxx) wins. -The leftmost codepage (.xxx) wins. -*/ - const char* posixID = uprv_getPOSIXIDForDefaultLocale(); - - /* Format: (no spaces) - ll [ _CC ] [ . MM ] [ @ VV] - - l = lang, C = ctry, M = charmap, V = variant - */ - - if (gCorrectedPOSIXLocale != nullptr) { - return gCorrectedPOSIXLocale; - } - - // Copy the ID into owned memory. - // Over-allocate in case we replace "C" with "en_US_POSIX" (+10), + null termination - char *correctedPOSIXLocale = static_cast<char *>(uprv_malloc(uprv_strlen(posixID) + 10 + 1)); - if (correctedPOSIXLocale == nullptr) { - return nullptr; - } - uprv_strcpy(correctedPOSIXLocale, posixID); - - char *limit; - if ((limit = uprv_strchr(correctedPOSIXLocale, '.')) != nullptr) { - *limit = 0; - } - if ((limit = uprv_strchr(correctedPOSIXLocale, '@')) != nullptr) { - *limit = 0; - } - - if ((uprv_strcmp("C", correctedPOSIXLocale) == 0) // no @ variant - || (uprv_strcmp("POSIX", correctedPOSIXLocale) == 0)) { - // Raw input was C.* or POSIX.*, Give it a nice POSIX default value. - // (The "C"/"POSIX" case is handled in uprv_getPOSIXIDForCategory()) - uprv_strcpy(correctedPOSIXLocale, "en_US_POSIX"); - } - - /* Note that we scan the *uncorrected* ID. */ - const char *p; - if ((p = uprv_strrchr(posixID, '@')) != nullptr) { - p++; - - /* Take care of any special cases here.. */ - if (!uprv_strcmp(p, "nynorsk")) { - p = "NY"; - /* Don't worry about no__NY. In practice, it won't appear. */ - } - - if (uprv_strchr(correctedPOSIXLocale,'_') == nullptr) { - uprv_strcat(correctedPOSIXLocale, "__"); /* aa@b -> aa__b (note this can make the new locale 1 char longer) */ - } - else { - uprv_strcat(correctedPOSIXLocale, "_"); /* aa_CC@b -> aa_CC_b */ - } - - const char *q; - if ((q = uprv_strchr(p, '.')) != nullptr) { - /* How big will the resulting string be? */ - int32_t len = (int32_t)(uprv_strlen(correctedPOSIXLocale) + (q-p)); - uprv_strncat(correctedPOSIXLocale, p, q-p); // do not include charset - correctedPOSIXLocale[len] = 0; - } - else { - /* Anything following the @ sign */ - uprv_strcat(correctedPOSIXLocale, p); - } - - /* Should there be a map from 'no@nynorsk' -> no_NO_NY here? - * How about 'russian' -> 'ru'? - * Many of the other locales using ISO codes will be handled by the - * canonicalization functions in uloc_getDefault. - */ - } - - if (gCorrectedPOSIXLocale == nullptr) { - gCorrectedPOSIXLocale = correctedPOSIXLocale; - gCorrectedPOSIXLocaleHeapAllocated = true; - ucln_common_registerCleanup(UCLN_COMMON_PUTIL, putil_cleanup); - correctedPOSIXLocale = nullptr; - } - posixID = gCorrectedPOSIXLocale; - - if (correctedPOSIXLocale != nullptr) { /* Was already set - clean up. */ - uprv_free(correctedPOSIXLocale); - } - - return posixID; - -#elif U_PLATFORM_USES_ONLY_WIN32_API -#define POSIX_LOCALE_CAPACITY 64 - UErrorCode status = U_ZERO_ERROR; - char *correctedPOSIXLocale = nullptr; - - // If we have already figured this out just use the cached value - if (gCorrectedPOSIXLocale != nullptr) { - return gCorrectedPOSIXLocale; - } - - // No cached value, need to determine the current value - static WCHAR windowsLocale[LOCALE_NAME_MAX_LENGTH] = {}; - int length = GetLocaleInfoEx(LOCALE_NAME_USER_DEFAULT, LOCALE_SNAME, windowsLocale, LOCALE_NAME_MAX_LENGTH); - - // Now we should have a Windows locale name that needs converted to the POSIX style. - if (length > 0) // If length is 0, then the GetLocaleInfoEx failed. - { - // First we need to go from UTF-16 to char (and also convert from _ to - while we're at it.) - char modifiedWindowsLocale[LOCALE_NAME_MAX_LENGTH] = {}; - - int32_t i; - for (i = 0; i < UPRV_LENGTHOF(modifiedWindowsLocale); i++) - { - if (windowsLocale[i] == '_') - { - modifiedWindowsLocale[i] = '-'; - } - else - { - modifiedWindowsLocale[i] = static_cast<char>(windowsLocale[i]); - } - - if (modifiedWindowsLocale[i] == '\0') - { - break; - } - } - - if (i >= UPRV_LENGTHOF(modifiedWindowsLocale)) - { - // Ran out of room, can't really happen, maybe we'll be lucky about a matching - // locale when tags are dropped - modifiedWindowsLocale[UPRV_LENGTHOF(modifiedWindowsLocale) - 1] = '\0'; - } - - // Now normalize the resulting name - correctedPOSIXLocale = static_cast<char *>(uprv_malloc(POSIX_LOCALE_CAPACITY + 1)); - /* TODO: Should we just exit on memory allocation failure? */ - if (correctedPOSIXLocale) - { - int32_t posixLen = uloc_canonicalize(modifiedWindowsLocale, correctedPOSIXLocale, POSIX_LOCALE_CAPACITY, &status); - if (U_SUCCESS(status)) - { - *(correctedPOSIXLocale + posixLen) = 0; - gCorrectedPOSIXLocale = correctedPOSIXLocale; - gCorrectedPOSIXLocaleHeapAllocated = true; - ucln_common_registerCleanup(UCLN_COMMON_PUTIL, putil_cleanup); - } - else - { - uprv_free(correctedPOSIXLocale); - } - } - } - - // If unable to find a locale we can agree upon, use en-US by default - if (gCorrectedPOSIXLocale == nullptr) { - gCorrectedPOSIXLocale = "en_US"; - } - return gCorrectedPOSIXLocale; - -#elif U_PLATFORM == U_PF_OS400 - /* locales are process scoped and are by definition thread safe */ - static char correctedLocale[64]; - const char *localeID = getenv("LC_ALL"); - char *p; - - if (localeID == NULL) - localeID = getenv("LANG"); - if (localeID == NULL) - localeID = setlocale(LC_ALL, NULL); - /* Make sure we have something... */ - if (localeID == NULL) - return "en_US_POSIX"; - - /* Extract the locale name from the path. */ - if((p = uprv_strrchr(localeID, '/')) != NULL) - { - /* Increment p to start of locale name. */ - p++; - localeID = p; - } - - /* Copy to work location. */ - uprv_strcpy(correctedLocale, localeID); - - /* Strip off the '.locale' extension. */ - if((p = uprv_strchr(correctedLocale, '.')) != NULL) { - *p = 0; - } - - /* Upper case the locale name. */ - T_CString_toUpperCase(correctedLocale); - - /* See if we are using the POSIX locale. Any of the - * following are equivalent and use the same QLGPGCMA - * (POSIX) locale. - * QLGPGCMA2 means UCS2 - * QLGPGCMA_4 means UTF-32 - * QLGPGCMA_8 means UTF-8 - */ - if ((uprv_strcmp("C", correctedLocale) == 0) || - (uprv_strcmp("POSIX", correctedLocale) == 0) || - (uprv_strncmp("QLGPGCMA", correctedLocale, 8) == 0)) - { - uprv_strcpy(correctedLocale, "en_US_POSIX"); - } - else - { - int16_t LocaleLen; - - /* Lower case the lang portion. */ - for(p = correctedLocale; *p != 0 && *p != '_'; p++) - { - *p = uprv_tolower(*p); - } - - /* Adjust for Euro. After '_E' add 'URO'. */ - LocaleLen = uprv_strlen(correctedLocale); - if (correctedLocale[LocaleLen - 2] == '_' && - correctedLocale[LocaleLen - 1] == 'E') - { - uprv_strcat(correctedLocale, "URO"); - } - - /* If using Lotus-based locale then convert to - * equivalent non Lotus. - */ - else if (correctedLocale[LocaleLen - 2] == '_' && - correctedLocale[LocaleLen - 1] == 'L') - { - correctedLocale[LocaleLen - 2] = 0; - } - - /* There are separate simplified and traditional - * locales called zh_HK_S and zh_HK_T. - */ - else if (uprv_strncmp(correctedLocale, "zh_HK", 5) == 0) - { - uprv_strcpy(correctedLocale, "zh_HK"); - } - - /* A special zh_CN_GBK locale... - */ - else if (uprv_strcmp(correctedLocale, "zh_CN_GBK") == 0) - { - uprv_strcpy(correctedLocale, "zh_CN"); - } - - } - - return correctedLocale; -#endif - -} - -#if !U_CHARSET_IS_UTF8 -#if U_POSIX_LOCALE -/* -Due to various platform differences, one platform may specify a charset, -when they really mean a different charset. Remap the names so that they are -compatible with ICU. Only conflicting/ambiguous aliases should be resolved -here. Before adding anything to this function, please consider adding unique -names to the ICU alias table in the data directory. -*/ -static const char* -remapPlatformDependentCodepage(const char *locale, const char *name) { - if (locale != NULL && *locale == 0) { - /* Make sure that an empty locale is handled the same way. */ - locale = NULL; - } - if (name == NULL) { - return NULL; - } -#if U_PLATFORM == U_PF_AIX - if (uprv_strcmp(name, "IBM-943") == 0) { - /* Use the ASCII compatible ibm-943 */ - name = "Shift-JIS"; - } - else if (uprv_strcmp(name, "IBM-1252") == 0) { - /* Use the windows-1252 that contains the Euro */ - name = "IBM-5348"; - } -#elif U_PLATFORM == U_PF_SOLARIS - if (locale != NULL && uprv_strcmp(name, "EUC") == 0) { - /* Solaris underspecifies the "EUC" name. */ - if (uprv_strcmp(locale, "zh_CN") == 0) { - name = "EUC-CN"; - } - else if (uprv_strcmp(locale, "zh_TW") == 0) { - name = "EUC-TW"; - } - else if (uprv_strcmp(locale, "ko_KR") == 0) { - name = "EUC-KR"; - } - } - else if (uprv_strcmp(name, "eucJP") == 0) { - /* - ibm-954 is the best match. - ibm-33722 is the default for eucJP (similar to Windows). - */ - name = "eucjis"; - } - else if (uprv_strcmp(name, "646") == 0) { - /* - * The default codepage given by Solaris is 646 but the C library routines treat it as if it was - * ISO-8859-1 instead of US-ASCII(646). - */ - name = "ISO-8859-1"; - } -#elif U_PLATFORM_IS_DARWIN_BASED - if (locale == NULL && *name == 0) { - /* - No locale was specified, and an empty name was passed in. - This usually indicates that nl_langinfo didn't return valid information. - Mac OS X uses UTF-8 by default (especially the locale data and console). - */ - name = "UTF-8"; - } - else if (uprv_strcmp(name, "CP949") == 0) { - /* Remap CP949 to a similar codepage to avoid issues with backslash and won symbol. */ - name = "EUC-KR"; - } - else if (locale != NULL && uprv_strcmp(locale, "en_US_POSIX") != 0 && uprv_strcmp(name, "US-ASCII") == 0) { - /* - * For non C/POSIX locale, default the code page to UTF-8 instead of US-ASCII. - */ - name = "UTF-8"; - } -#elif U_PLATFORM == U_PF_BSD - if (uprv_strcmp(name, "CP949") == 0) { - /* Remap CP949 to a similar codepage to avoid issues with backslash and won symbol. */ - name = "EUC-KR"; - } -#elif U_PLATFORM == U_PF_HPUX - if (locale != NULL && uprv_strcmp(locale, "zh_HK") == 0 && uprv_strcmp(name, "big5") == 0) { - /* HP decided to extend big5 as hkbig5 even though it's not compatible :-( */ - /* zh_TW.big5 is not the same charset as zh_HK.big5! */ - name = "hkbig5"; - } - else if (uprv_strcmp(name, "eucJP") == 0) { - /* - ibm-1350 is the best match, but unavailable. - ibm-954 is mostly a superset of ibm-1350. - ibm-33722 is the default for eucJP (similar to Windows). - */ - name = "eucjis"; - } -#elif U_PLATFORM == U_PF_LINUX - if (locale != NULL && uprv_strcmp(name, "euc") == 0) { - /* Linux underspecifies the "EUC" name. */ - if (uprv_strcmp(locale, "korean") == 0) { - name = "EUC-KR"; - } - else if (uprv_strcmp(locale, "japanese") == 0) { - /* See comment below about eucJP */ - name = "eucjis"; - } - } - else if (uprv_strcmp(name, "eucjp") == 0) { - /* - ibm-1350 is the best match, but unavailable. - ibm-954 is mostly a superset of ibm-1350. - ibm-33722 is the default for eucJP (similar to Windows). - */ - name = "eucjis"; - } - else if (locale != NULL && uprv_strcmp(locale, "en_US_POSIX") != 0 && - (uprv_strcmp(name, "ANSI_X3.4-1968") == 0 || uprv_strcmp(name, "US-ASCII") == 0)) { - /* - * For non C/POSIX locale, default the code page to UTF-8 instead of US-ASCII. - */ - name = "UTF-8"; - } - /* - * Linux returns ANSI_X3.4-1968 for C/POSIX, but the call site takes care of - * it by falling back to 'US-ASCII' when NULL is returned from this - * function. So, we don't have to worry about it here. - */ -#endif - /* return NULL when "" is passed in */ - if (*name == 0) { - name = NULL; - } - return name; -} - -static const char* -getCodepageFromPOSIXID(const char *localeName, char * buffer, int32_t buffCapacity) -{ - char localeBuf[100]; - const char *name = NULL; - char *variant = NULL; - - if (localeName != NULL && (name = (uprv_strchr(localeName, '.'))) != NULL) { - size_t localeCapacity = uprv_min(sizeof(localeBuf), (name-localeName)+1); - uprv_strncpy(localeBuf, localeName, localeCapacity); - localeBuf[localeCapacity-1] = 0; /* ensure NULL termination */ - name = uprv_strncpy(buffer, name+1, buffCapacity); - buffer[buffCapacity-1] = 0; /* ensure NULL termination */ - if ((variant = const_cast<char *>(uprv_strchr(name, '@'))) != NULL) { - *variant = 0; - } - name = remapPlatformDependentCodepage(localeBuf, name); - } - return name; -} -#endif - -static const char* -int_getDefaultCodepage() -{ -#if U_PLATFORM == U_PF_OS400 - uint32_t ccsid = 37; /* Default to ibm-37 */ - static char codepage[64]; - Qwc_JOBI0400_t jobinfo; - Qus_EC_t error = { sizeof(Qus_EC_t) }; /* SPI error code */ - - EPT_CALL(QUSRJOBI)(&jobinfo, sizeof(jobinfo), "JOBI0400", - "* ", " ", &error); - - if (error.Bytes_Available == 0) { - if (jobinfo.Coded_Char_Set_ID != 0xFFFF) { - ccsid = (uint32_t)jobinfo.Coded_Char_Set_ID; - } - else if (jobinfo.Default_Coded_Char_Set_Id != 0xFFFF) { - ccsid = (uint32_t)jobinfo.Default_Coded_Char_Set_Id; - } - /* else use the default */ - } - sprintf(codepage,"ibm-%d", ccsid); - return codepage; - -#elif U_PLATFORM == U_PF_OS390 - static char codepage[64]; - - strncpy(codepage, nl_langinfo(CODESET),63-strlen(UCNV_SWAP_LFNL_OPTION_STRING)); - strcat(codepage,UCNV_SWAP_LFNL_OPTION_STRING); - codepage[63] = 0; /* NULL terminate */ - - return codepage; - -#elif U_PLATFORM_USES_ONLY_WIN32_API - static char codepage[64]; - DWORD codepageNumber = 0; - -#if U_PLATFORM_HAS_WINUWP_API > 0 - // UWP doesn't have a direct API to get the default ACP as Microsoft would rather - // have folks use Unicode than a "system" code page, however this is the same - // codepage as the system default locale codepage. (FWIW, the system locale is - // ONLY used for codepage, it should never be used for anything else) - GetLocaleInfoEx(LOCALE_NAME_SYSTEM_DEFAULT, LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER, - (LPWSTR)&codepageNumber, sizeof(codepageNumber) / sizeof(WCHAR)); -#else - // Win32 apps can call GetACP - codepageNumber = GetACP(); -#endif - // Special case for UTF-8 - if (codepageNumber == 65001) - { - return "UTF-8"; - } - // Windows codepages can look like windows-1252, so format the found number - // the numbers are eclectic, however all valid system code pages, besides UTF-8 - // are between 3 and 19999 - if (codepageNumber > 0 && codepageNumber < 20000) - { - sprintf(codepage, "windows-%ld", codepageNumber); - return codepage; - } - // If the codepage number call failed then return UTF-8 - return "UTF-8"; - -#elif U_POSIX_LOCALE - static char codesetName[100]; - const char *localeName = NULL; - const char *name = NULL; - - localeName = uprv_getPOSIXIDForDefaultCodepage(); - uprv_memset(codesetName, 0, sizeof(codesetName)); - /* On Solaris nl_langinfo returns C locale values unless setlocale - * was called earlier. - */ -#if (U_HAVE_NL_LANGINFO_CODESET && U_PLATFORM != U_PF_SOLARIS) - /* When available, check nl_langinfo first because it usually gives more - useful names. It depends on LC_CTYPE. - nl_langinfo may use the same buffer as setlocale. */ - { - const char *codeset = nl_langinfo(U_NL_LANGINFO_CODESET); -#if U_PLATFORM_IS_DARWIN_BASED || U_PLATFORM_IS_LINUX_BASED - /* - * On Linux and MacOSX, ensure that default codepage for non C/POSIX locale is UTF-8 - * instead of ASCII. - */ - if (uprv_strcmp(localeName, "en_US_POSIX") != 0) { - codeset = remapPlatformDependentCodepage(localeName, codeset); - } else -#endif - { - codeset = remapPlatformDependentCodepage(NULL, codeset); - } - - if (codeset != NULL) { - uprv_strncpy(codesetName, codeset, sizeof(codesetName)); - codesetName[sizeof(codesetName)-1] = 0; - return codesetName; - } - } -#endif - - /* Use setlocale in a nice way, and then check some environment variables. - Maybe the application used setlocale already. - */ - uprv_memset(codesetName, 0, sizeof(codesetName)); - name = getCodepageFromPOSIXID(localeName, codesetName, sizeof(codesetName)); - if (name) { - /* if we can find the codeset name from setlocale, return that. */ - return name; - } - - if (*codesetName == 0) - { - /* Everything failed. Return US ASCII (ISO 646). */ - (void)uprv_strcpy(codesetName, "US-ASCII"); - } - return codesetName; -#else - return "US-ASCII"; -#endif -} - - -U_CAPI const char* U_EXPORT2 -uprv_getDefaultCodepage() -{ - static char const *name = NULL; - umtx_lock(NULL); - if (name == NULL) { - name = int_getDefaultCodepage(); - } - umtx_unlock(NULL); - return name; -} -#endif /* !U_CHARSET_IS_UTF8 */ - - -/* end of platform-specific implementation -------------- */ - -/* version handling --------------------------------------------------------- */ - -U_CAPI void U_EXPORT2 -u_versionFromString(UVersionInfo versionArray, const char *versionString) { - char *end; - uint16_t part=0; - - if(versionArray==NULL) { - return; - } - - if(versionString!=NULL) { - for(;;) { - versionArray[part]=(uint8_t)uprv_strtoul(versionString, &end, 10); - if(end==versionString || ++part==U_MAX_VERSION_LENGTH || *end!=U_VERSION_DELIMITER) { - break; - } - versionString=end+1; - } - } - - while(part<U_MAX_VERSION_LENGTH) { - versionArray[part++]=0; - } -} - -U_CAPI void U_EXPORT2 -u_versionFromUString(UVersionInfo versionArray, const UChar *versionString) { - if(versionArray!=NULL && versionString!=NULL) { - char versionChars[U_MAX_VERSION_STRING_LENGTH+1]; - int32_t len = u_strlen(versionString); - if(len>U_MAX_VERSION_STRING_LENGTH) { - len = U_MAX_VERSION_STRING_LENGTH; - } - u_UCharsToChars(versionString, versionChars, len); - versionChars[len]=0; - u_versionFromString(versionArray, versionChars); - } -} - -U_CAPI void U_EXPORT2 -u_versionToString(const UVersionInfo versionArray, char *versionString) { - uint16_t count, part; - uint8_t field; - - if(versionString==NULL) { - return; - } - - if(versionArray==NULL) { - versionString[0]=0; - return; - } - - /* count how many fields need to be written */ - for(count=4; count>0 && versionArray[count-1]==0; --count) { - } - - if(count <= 1) { - count = 2; - } - - /* write the first part */ - /* write the decimal field value */ - field=versionArray[0]; - if(field>=100) { - *versionString++=(char)('0'+field/100); - field%=100; - } - if(field>=10) { - *versionString++=(char)('0'+field/10); - field%=10; - } - *versionString++=(char)('0'+field); - - /* write the following parts */ - for(part=1; part<count; ++part) { - /* write a dot first */ - *versionString++=U_VERSION_DELIMITER; - - /* write the decimal field value */ - field=versionArray[part]; - if(field>=100) { - *versionString++=(char)('0'+field/100); - field%=100; - } - if(field>=10) { - *versionString++=(char)('0'+field/10); - field%=10; - } - *versionString++=(char)('0'+field); - } - - /* NUL-terminate */ - *versionString=0; -} - -U_CAPI void U_EXPORT2 -u_getVersion(UVersionInfo versionArray) { - (void)copyright; // Suppress unused variable warning from clang. - u_versionFromString(versionArray, U_ICU_VERSION); -} - -/** - * icucfg.h dependent code - */ - -#if U_ENABLE_DYLOAD && HAVE_DLOPEN && !U_PLATFORM_USES_ONLY_WIN32_API - -#if HAVE_DLFCN_H -#ifdef __MVS__ -#ifndef __SUSV3 -#define __SUSV3 1 -#endif -#endif -#include <dlfcn.h> -#endif /* HAVE_DLFCN_H */ - -U_INTERNAL void * U_EXPORT2 -uprv_dl_open(const char *libName, UErrorCode *status) { - void *ret = NULL; - if(U_FAILURE(*status)) return ret; - ret = dlopen(libName, RTLD_NOW|RTLD_GLOBAL); - if(ret==NULL) { -#ifdef U_TRACE_DYLOAD - printf("dlerror on dlopen(%s): %s\n", libName, dlerror()); -#endif - *status = U_MISSING_RESOURCE_ERROR; - } - return ret; -} - -U_INTERNAL void U_EXPORT2 -uprv_dl_close(void *lib, UErrorCode *status) { - if(U_FAILURE(*status)) return; - dlclose(lib); -} - -U_INTERNAL UVoidFunction* U_EXPORT2 -uprv_dlsym_func(void *lib, const char* sym, UErrorCode *status) { - union { - UVoidFunction *fp; - void *vp; - } uret; - uret.fp = NULL; - if(U_FAILURE(*status)) return uret.fp; - uret.vp = dlsym(lib, sym); - if(uret.vp == NULL) { -#ifdef U_TRACE_DYLOAD - printf("dlerror on dlsym(%p,%s): %s\n", lib,sym, dlerror()); -#endif - *status = U_MISSING_RESOURCE_ERROR; - } - return uret.fp; -} - -#elif U_ENABLE_DYLOAD && U_PLATFORM_USES_ONLY_WIN32_API && !U_PLATFORM_HAS_WINUWP_API - -/* Windows API implementation. */ -// Note: UWP does not expose/allow these APIs, so the UWP version gets the null implementation. */ - -U_INTERNAL void * U_EXPORT2 -uprv_dl_open(const char *libName, UErrorCode *status) { - HMODULE lib = NULL; - - if(U_FAILURE(*status)) return NULL; - - lib = LoadLibraryA(libName); - - if(lib==NULL) { - *status = U_MISSING_RESOURCE_ERROR; - } - - return (void*)lib; -} - -U_INTERNAL void U_EXPORT2 -uprv_dl_close(void *lib, UErrorCode *status) { - HMODULE handle = (HMODULE)lib; - if(U_FAILURE(*status)) return; - - FreeLibrary(handle); - - return; -} - -U_INTERNAL UVoidFunction* U_EXPORT2 -uprv_dlsym_func(void *lib, const char* sym, UErrorCode *status) { - HMODULE handle = (HMODULE)lib; - UVoidFunction* addr = NULL; - - if(U_FAILURE(*status) || lib==NULL) return NULL; - - addr = (UVoidFunction*)GetProcAddress(handle, sym); - - if(addr==NULL) { - DWORD lastError = GetLastError(); - if(lastError == ERROR_PROC_NOT_FOUND) { - *status = U_MISSING_RESOURCE_ERROR; - } else { - *status = U_UNSUPPORTED_ERROR; /* other unknown error. */ - } - } - - return addr; -} - -#else - -/* No dynamic loading, null (nonexistent) implementation. */ - -U_INTERNAL void * U_EXPORT2 -uprv_dl_open(const char *libName, UErrorCode *status) { - (void)libName; - if(U_FAILURE(*status)) return NULL; - *status = U_UNSUPPORTED_ERROR; - return NULL; -} - -U_INTERNAL void U_EXPORT2 -uprv_dl_close(void *lib, UErrorCode *status) { - (void)lib; - if(U_FAILURE(*status)) return; - *status = U_UNSUPPORTED_ERROR; - return; -} - -U_INTERNAL UVoidFunction* U_EXPORT2 -uprv_dlsym_func(void *lib, const char* sym, UErrorCode *status) { - (void)lib; - (void)sym; - if(U_SUCCESS(*status)) { - *status = U_UNSUPPORTED_ERROR; - } - return (UVoidFunction*)NULL; -} - -#endif - -/* - * Hey, Emacs, please set the following: - * - * Local Variables: - * indent-tabs-mode: nil - * End: - * - */ |