diff options
Diffstat (limited to 'media/mtransport/third_party/nICEr/src/util/mbslen.c')
-rw-r--r-- | media/mtransport/third_party/nICEr/src/util/mbslen.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/media/mtransport/third_party/nICEr/src/util/mbslen.c b/media/mtransport/third_party/nICEr/src/util/mbslen.c new file mode 100644 index 000000000..3645c95cf --- /dev/null +++ b/media/mtransport/third_party/nICEr/src/util/mbslen.c @@ -0,0 +1,139 @@ +/* +Copyright (c) 2007, Adobe Systems, Incorporated +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +* Neither the name of Adobe Systems, Network Resonance nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#ifdef LINUX +#define _GNU_SOURCE 1 +#endif +#include <string.h> + +#include <errno.h> +#include <csi_platform.h> + +#include <assert.h> +#include <locale.h> +#include <stdlib.h> +#include <wchar.h> +#if defined(DARWIN) || defined(__DragonFly__) || defined(__FreeBSD__) +#define HAVE_XLOCALE +#endif + +#ifdef HAVE_XLOCALE +#include <xlocale.h> +#endif /* HAVE_XLOCALE */ + +#include "nr_api.h" +#include "mbslen.h" + +/* get number of characters in a mult-byte character string */ +int +mbslen(const char *s, size_t *ncharsp) +{ +#ifdef HAVE_XLOCALE + static locale_t loc = 0; + static int initialized = 0; +#endif /* HAVE_XLOCALE */ +#ifdef WIN32 + char *my_locale=0; + unsigned int i; +#endif /* WIN32 */ + int _status; + size_t nbytes; + int nchars; + mbstate_t mbs; + +#ifdef HAVE_XLOCALE + if (! initialized) { + initialized = 1; + loc = newlocale(LC_CTYPE_MASK, "UTF-8", LC_GLOBAL_LOCALE); + } + + if (loc == 0) { + /* unable to create the UTF-8 locale */ + assert(loc != 0); /* should never happen */ +#endif /* HAVE_XLOCALE */ + +#ifdef WIN32 + if (!setlocale(LC_CTYPE, 0)) + ABORT(R_INTERNAL); + + if (!(my_locale = r_strdup(setlocale(LC_CTYPE, 0)))) + ABORT(R_NO_MEMORY); + + for (i=0; i<strlen(my_locale); i++) + my_locale[i] = toupper(my_locale[i]); + + if (!strstr(my_locale, "UTF-8") && !strstr(my_locale, "UTF8")) + ABORT(R_NOT_FOUND); +#else + /* can't count UTF-8 characters with mbrlen if the locale isn't UTF-8 */ + /* null-checking setlocale is required because Android */ + char *locale = setlocale(LC_CTYPE, 0); + /* some systems use "utf8" instead of "UTF-8" like Fedora 17 */ + if (!locale || (!strcasestr(locale, "UTF-8") && !strcasestr(locale, "UTF8"))) + ABORT(R_NOT_FOUND); +#endif + +#ifdef HAVE_XLOCALE + } +#endif /* HAVE_XLOCALE */ + + memset(&mbs, 0, sizeof(mbs)); + nchars = 0; + +#ifdef HAVE_XLOCALE + while (*s != '\0' && (nbytes = mbrlen_l(s, strlen(s), &mbs, loc)) != 0) +#else + while (*s != '\0' && (nbytes = mbrlen(s, strlen(s), &mbs)) != 0) +#endif /* HAVE_XLOCALE */ + { + if (nbytes == (size_t)-1) /* should never happen */ { + ABORT(R_INTERNAL); + } + if (nbytes == (size_t)-2) /* encoding error */ { + ABORT(R_BAD_DATA); + } + + s += nbytes; + ++nchars; + } + + *ncharsp = nchars; + + _status = 0; + abort: +#ifdef WIN32 + RFREE(my_locale); +#endif + return _status; +} + |