The Tor Browser / file comparison
comparison: media/mtransport/third_party/nICEr/src/util/mbslen.c
media/mtransport/third_party/nICEr/src/util/mbslen.c
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
equal
deleted
inserted
replaced
| -1:000000000000 | 0:985f5f4970cd |
|---|---|
| 1 /* | |
| 2 Copyright (c) 2007, Adobe Systems, Incorporated | |
| 3 All rights reserved. | |
| 4 | |
| 5 Redistribution and use in source and binary forms, with or without | |
| 6 modification, are permitted provided that the following conditions are | |
| 7 met: | |
| 8 | |
| 9 * Redistributions of source code must retain the above copyright | |
| 10 notice, this list of conditions and the following disclaimer. | |
| 11 | |
| 12 * Redistributions in binary form must reproduce the above copyright | |
| 13 notice, this list of conditions and the following disclaimer in the | |
| 14 documentation and/or other materials provided with the distribution. | |
| 15 | |
| 16 * Neither the name of Adobe Systems, Network Resonance nor the names of its | |
| 17 contributors may be used to endorse or promote products derived from | |
| 18 this software without specific prior written permission. | |
| 19 | |
| 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 24 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 25 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 26 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 27 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 28 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 29 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 30 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 */ | |
| 32 | |
| 33 | |
| 34 #ifdef LINUX | |
| 35 #define _GNU_SOURCE 1 | |
| 36 #endif | |
| 37 #include <string.h> | |
| 38 | |
| 39 #include <errno.h> | |
| 40 #include <csi_platform.h> | |
| 41 | |
| 42 #include <assert.h> | |
| 43 #include <locale.h> | |
| 44 #include <stdlib.h> | |
| 45 #include <wchar.h> | |
| 46 #ifdef DARWIN | |
| 47 #define HAVE_XLOCALE | |
| 48 #endif | |
| 49 | |
| 50 #ifdef __FreeBSD__ | |
| 51 #include <osreldate.h> | |
| 52 # if __FreeBSD_version > 900505 | |
| 53 # define HAVE_XLOCALE | |
| 54 # endif | |
| 55 #endif | |
| 56 | |
| 57 #ifdef HAVE_XLOCALE | |
| 58 #include <xlocale.h> | |
| 59 #endif /* HAVE_XLOCALE */ | |
| 60 | |
| 61 #include "nr_api.h" | |
| 62 #include "mbslen.h" | |
| 63 | |
| 64 /* get number of characters in a mult-byte character string */ | |
| 65 int | |
| 66 mbslen(const char *s, size_t *ncharsp) | |
| 67 { | |
| 68 #ifdef HAVE_XLOCALE | |
| 69 static locale_t loc = 0; | |
| 70 static int initialized = 0; | |
| 71 #endif /* HAVE_XLOCALE */ | |
| 72 #ifdef WIN32 | |
| 73 char *my_locale=0; | |
| 74 unsigned int i; | |
| 75 #endif /* WIN32 */ | |
| 76 int _status; | |
| 77 size_t nbytes; | |
| 78 int nchars; | |
| 79 mbstate_t mbs; | |
| 80 | |
| 81 #ifdef HAVE_XLOCALE | |
| 82 if (! initialized) { | |
| 83 initialized = 1; | |
| 84 loc = newlocale(LC_CTYPE_MASK, "UTF-8", LC_GLOBAL_LOCALE); | |
| 85 } | |
| 86 | |
| 87 if (loc == 0) { | |
| 88 /* unable to create the UTF-8 locale */ | |
| 89 assert(loc != 0); /* should never happen */ | |
| 90 #endif /* HAVE_XLOCALE */ | |
| 91 | |
| 92 #ifdef WIN32 | |
| 93 if (!setlocale(LC_CTYPE, 0)) | |
| 94 ABORT(R_INTERNAL); | |
| 95 | |
| 96 if (!(my_locale = r_strdup(setlocale(LC_CTYPE, 0)))) | |
| 97 ABORT(R_NO_MEMORY); | |
| 98 | |
| 99 for (i=0; i<strlen(my_locale); i++) | |
| 100 my_locale[i] = toupper(my_locale[i]); | |
| 101 | |
| 102 if (!strstr(my_locale, "UTF-8") && !strstr(my_locale, "UTF8")) | |
| 103 ABORT(R_NOT_FOUND); | |
| 104 #else | |
| 105 /* can't count UTF-8 characters with mbrlen if the locale isn't UTF-8 */ | |
| 106 /* null-checking setlocale is required because Android */ | |
| 107 char *locale = setlocale(LC_CTYPE, 0); | |
| 108 /* some systems use "utf8" instead of "UTF-8" like Fedora 17 */ | |
| 109 if (!locale || (!strcasestr(locale, "UTF-8") && !strcasestr(locale, "UTF8"))) | |
| 110 ABORT(R_NOT_FOUND); | |
| 111 #endif | |
| 112 | |
| 113 #ifdef HAVE_XLOCALE | |
| 114 } | |
| 115 #endif /* HAVE_XLOCALE */ | |
| 116 | |
| 117 memset(&mbs, 0, sizeof(mbs)); | |
| 118 nchars = 0; | |
| 119 | |
| 120 #ifdef HAVE_XLOCALE | |
| 121 while (*s != '\0' && (nbytes = mbrlen_l(s, strlen(s), &mbs, loc)) != 0) | |
| 122 #else | |
| 123 while (*s != '\0' && (nbytes = mbrlen(s, strlen(s), &mbs)) != 0) | |
| 124 #endif /* HAVE_XLOCALE */ | |
| 125 { | |
| 126 if (nbytes == (size_t)-1) /* should never happen */ { | |
| 127 ABORT(R_INTERNAL); | |
| 128 } | |
| 129 if (nbytes == (size_t)-2) /* encoding error */ { | |
| 130 ABORT(R_BAD_DATA); | |
| 131 } | |
| 132 | |
| 133 s += nbytes; | |
| 134 ++nchars; | |
| 135 } | |
| 136 | |
| 137 *ncharsp = nchars; | |
| 138 | |
| 139 _status = 0; | |
| 140 abort: | |
| 141 #ifdef WIN32 | |
| 142 RFREE(my_locale); | |
| 143 #endif | |
| 144 return _status; | |
| 145 } | |
| 146 |
