1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/mtransport/third_party/nICEr/src/util/mbslen.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,146 @@
1.4 +/*
1.5 +Copyright (c) 2007, Adobe Systems, Incorporated
1.6 +All rights reserved.
1.7 +
1.8 +Redistribution and use in source and binary forms, with or without
1.9 +modification, are permitted provided that the following conditions are
1.10 +met:
1.11 +
1.12 +* Redistributions of source code must retain the above copyright
1.13 + notice, this list of conditions and the following disclaimer.
1.14 +
1.15 +* Redistributions in binary form must reproduce the above copyright
1.16 + notice, this list of conditions and the following disclaimer in the
1.17 + documentation and/or other materials provided with the distribution.
1.18 +
1.19 +* Neither the name of Adobe Systems, Network Resonance nor the names of its
1.20 + contributors may be used to endorse or promote products derived from
1.21 + this software without specific prior written permission.
1.22 +
1.23 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.27 +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.28 +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.29 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.30 +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.31 +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.32 +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.33 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 +*/
1.35 +
1.36 +
1.37 +#ifdef LINUX
1.38 +#define _GNU_SOURCE 1
1.39 +#endif
1.40 +#include <string.h>
1.41 +
1.42 +#include <errno.h>
1.43 +#include <csi_platform.h>
1.44 +
1.45 +#include <assert.h>
1.46 +#include <locale.h>
1.47 +#include <stdlib.h>
1.48 +#include <wchar.h>
1.49 +#ifdef DARWIN
1.50 +#define HAVE_XLOCALE
1.51 +#endif
1.52 +
1.53 +#ifdef __FreeBSD__
1.54 +#include <osreldate.h>
1.55 +# if __FreeBSD_version > 900505
1.56 +# define HAVE_XLOCALE
1.57 +# endif
1.58 +#endif
1.59 +
1.60 +#ifdef HAVE_XLOCALE
1.61 +#include <xlocale.h>
1.62 +#endif /* HAVE_XLOCALE */
1.63 +
1.64 +#include "nr_api.h"
1.65 +#include "mbslen.h"
1.66 +
1.67 +/* get number of characters in a mult-byte character string */
1.68 +int
1.69 +mbslen(const char *s, size_t *ncharsp)
1.70 +{
1.71 +#ifdef HAVE_XLOCALE
1.72 + static locale_t loc = 0;
1.73 + static int initialized = 0;
1.74 +#endif /* HAVE_XLOCALE */
1.75 +#ifdef WIN32
1.76 + char *my_locale=0;
1.77 + unsigned int i;
1.78 +#endif /* WIN32 */
1.79 + int _status;
1.80 + size_t nbytes;
1.81 + int nchars;
1.82 + mbstate_t mbs;
1.83 +
1.84 +#ifdef HAVE_XLOCALE
1.85 + if (! initialized) {
1.86 + initialized = 1;
1.87 + loc = newlocale(LC_CTYPE_MASK, "UTF-8", LC_GLOBAL_LOCALE);
1.88 + }
1.89 +
1.90 + if (loc == 0) {
1.91 + /* unable to create the UTF-8 locale */
1.92 + assert(loc != 0); /* should never happen */
1.93 +#endif /* HAVE_XLOCALE */
1.94 +
1.95 +#ifdef WIN32
1.96 + if (!setlocale(LC_CTYPE, 0))
1.97 + ABORT(R_INTERNAL);
1.98 +
1.99 + if (!(my_locale = r_strdup(setlocale(LC_CTYPE, 0))))
1.100 + ABORT(R_NO_MEMORY);
1.101 +
1.102 + for (i=0; i<strlen(my_locale); i++)
1.103 + my_locale[i] = toupper(my_locale[i]);
1.104 +
1.105 + if (!strstr(my_locale, "UTF-8") && !strstr(my_locale, "UTF8"))
1.106 + ABORT(R_NOT_FOUND);
1.107 +#else
1.108 + /* can't count UTF-8 characters with mbrlen if the locale isn't UTF-8 */
1.109 + /* null-checking setlocale is required because Android */
1.110 + char *locale = setlocale(LC_CTYPE, 0);
1.111 + /* some systems use "utf8" instead of "UTF-8" like Fedora 17 */
1.112 + if (!locale || (!strcasestr(locale, "UTF-8") && !strcasestr(locale, "UTF8")))
1.113 + ABORT(R_NOT_FOUND);
1.114 +#endif
1.115 +
1.116 +#ifdef HAVE_XLOCALE
1.117 + }
1.118 +#endif /* HAVE_XLOCALE */
1.119 +
1.120 + memset(&mbs, 0, sizeof(mbs));
1.121 + nchars = 0;
1.122 +
1.123 +#ifdef HAVE_XLOCALE
1.124 + while (*s != '\0' && (nbytes = mbrlen_l(s, strlen(s), &mbs, loc)) != 0)
1.125 +#else
1.126 + while (*s != '\0' && (nbytes = mbrlen(s, strlen(s), &mbs)) != 0)
1.127 +#endif /* HAVE_XLOCALE */
1.128 + {
1.129 + if (nbytes == (size_t)-1) /* should never happen */ {
1.130 + ABORT(R_INTERNAL);
1.131 + }
1.132 + if (nbytes == (size_t)-2) /* encoding error */ {
1.133 + ABORT(R_BAD_DATA);
1.134 + }
1.135 +
1.136 + s += nbytes;
1.137 + ++nchars;
1.138 + }
1.139 +
1.140 + *ncharsp = nchars;
1.141 +
1.142 + _status = 0;
1.143 + abort:
1.144 +#ifdef WIN32
1.145 + RFREE(my_locale);
1.146 +#endif
1.147 + return _status;
1.148 +}
1.149 +
