setrunelocale.c revision 136609
111695Sache/*- 211695Sache * Copyright (c) 1993 311695Sache * The Regents of the University of California. All rights reserved. 411695Sache * 511695Sache * This code is derived from software contributed to Berkeley by 611695Sache * Paul Borman at Krystal Technologies. 711695Sache * 811695Sache * Redistribution and use in source and binary forms, with or without 911695Sache * modification, are permitted provided that the following conditions 1011695Sache * are met: 1111695Sache * 1. Redistributions of source code must retain the above copyright 1211695Sache * notice, this list of conditions and the following disclaimer. 1311695Sache * 2. Redistributions in binary form must reproduce the above copyright 1411695Sache * notice, this list of conditions and the following disclaimer in the 1511695Sache * documentation and/or other materials provided with the distribution. 1611695Sache * 3. All advertising materials mentioning features or use of this software 1711695Sache * must display the following acknowledgement: 1811695Sache * This product includes software developed by the University of 1911695Sache * California, Berkeley and its contributors. 2011695Sache * 4. Neither the name of the University nor the names of its contributors 2111695Sache * may be used to endorse or promote products derived from this software 2211695Sache * without specific prior written permission. 2311695Sache * 2411695Sache * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2511695Sache * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2611695Sache * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2711695Sache * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2811695Sache * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2911695Sache * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3011695Sache * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3111695Sache * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3211695Sache * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3311695Sache * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 37117270Sache/* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead. */ 38117270Sache#define OBSOLETE_IN_6 39117270Sache 4092986Sobrien#include <sys/cdefs.h> 4192986Sobrien__FBSDID("$FreeBSD: head/lib/libc/locale/setrunelocale.c 136609 2004-10-17 06:51:50Z tjr $"); 4292986Sobrien 43136609Stjr#include <runetype.h> 4411695Sache#include <errno.h> 4511695Sache#include <limits.h> 4611695Sache#include <string.h> 4711695Sache#include <stdio.h> 4811695Sache#include <stdlib.h> 4924694Sache#include <unistd.h> 50121845Stjr#include <wchar.h> 51117270Sache#include "ldpart.h" 52129153Stjr#include "mblocal.h" 5322330Sache#include "setlocale.h" 5411695Sache 5592905Sobrienextern int _none_init(_RuneLocale *); 56104828Stjrextern int _UTF8_init(_RuneLocale *); 5792905Sobrienextern int _EUC_init(_RuneLocale *); 58118146Sacheextern int _GB18030_init(_RuneLocale *); 59122145Sdavidxuextern int _GB2312_init(_RuneLocale *); 60115626Sacheextern int _GBK_init(_RuneLocale *); 6192905Sobrienextern int _BIG5_init(_RuneLocale *); 6292905Sobrienextern int _MSKanji_init(_RuneLocale *); 63115626Sacheextern _RuneLocale *_Read_RuneMagi(FILE *); 6411695Sache 65117274Sachestatic int __setrunelocale(const char *); 66117270Sache 67134104Stjr__warn_references(setrunelocale, "warning: setrunelocale() is obsolete. See setrunelocale(3)."); 6811695Sacheint 69101498Sachesetrunelocale(char *encoding) 7011695Sache{ 71117270Sache int ret; 72117270Sache 73117270Sache if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 74117270Sache (encoding[0] == '.' && 75117270Sache (encoding[1] == '\0' || 76117270Sache (encoding[1] == '.' && encoding[2] == '\0'))) || 77117270Sache strchr(encoding, '/') != NULL) 78117270Sache return (EINVAL); 79117270Sache 80117270Sache ret = __detect_path_locale(); 81117270Sache if (ret != 0) 82117270Sache return (ret); 83117270Sache 84117274Sache return (__setrunelocale((const char *)encoding)); 85117270Sache} 86117270Sache 87117270Sachestatic int 88117274Sache__setrunelocale(const char *encoding) 89117270Sache{ 9011695Sache FILE *fp; 9111695Sache char name[PATH_MAX]; 9211695Sache _RuneLocale *rl; 93101498Sache int saverr, ret; 94101498Sache static char ctype_encoding[ENCODING_LEN + 1]; 95101498Sache static _RuneLocale *CachedRuneLocale; 96101498Sache static int Cached__mb_cur_max; 97123308Stjr static size_t (*Cached__mbrtowc)(wchar_t * __restrict, 98123308Stjr const char * __restrict, size_t, mbstate_t * __restrict); 99123308Stjr static size_t (*Cached__wcrtomb)(char * __restrict, wchar_t, 100123308Stjr mbstate_t * __restrict); 101128004Stjr static int (*Cached__mbsinit)(const mbstate_t *); 102132497Stjr static size_t (*Cached__mbsnrtowcs)(wchar_t * __restrict, 103132497Stjr const char ** __restrict, size_t, size_t, mbstate_t * __restrict); 104132497Stjr static size_t (*Cached__wcsnrtombs)(char * __restrict, 105132497Stjr const wchar_t ** __restrict, size_t, size_t, 106132497Stjr mbstate_t * __restrict); 10711695Sache 10811695Sache /* 10911695Sache * The "C" and "POSIX" locale are always here. 11011695Sache */ 111101498Sache if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 11211695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 113101488Sache __mb_cur_max = 1; 114123308Stjr __mbrtowc = _none_mbrtowc; 115129179Stjr __mbsinit = _none_mbsinit; 116132497Stjr __mbsnrtowcs = _none_mbsnrtowcs; 117123308Stjr __wcrtomb = _none_wcrtomb; 118132497Stjr __wcsnrtombs = _none_wcsnrtombs; 119101263Sache return (0); 12011695Sache } 12111695Sache 122101498Sache /* 123101498Sache * If the locale name is the same as our cache, use the cache. 124101498Sache */ 125101498Sache if (CachedRuneLocale != NULL && 126101498Sache strcmp(encoding, ctype_encoding) == 0) { 127101498Sache _CurrentRuneLocale = CachedRuneLocale; 128101498Sache __mb_cur_max = Cached__mb_cur_max; 129123308Stjr __mbrtowc = Cached__mbrtowc; 130129179Stjr __mbsinit = Cached__mbsinit; 131132497Stjr __mbsnrtowcs = Cached__mbsnrtowcs; 132123308Stjr __wcrtomb = Cached__wcrtomb; 133132497Stjr __wcsnrtombs = Cached__wcsnrtombs; 134101498Sache return (0); 135101498Sache } 136101498Sache 137101498Sache /* 138101498Sache * Slurp the locale file into the cache. 139101498Sache */ 14024694Sache 141117270Sache /* Range checking not needed, encoding length already checked before */ 14220810Sjoerg (void) strcpy(name, _PathLocale); 14320810Sjoerg (void) strcat(name, "/"); 14420810Sjoerg (void) strcat(name, encoding); 14520810Sjoerg (void) strcat(name, "/LC_CTYPE"); 14611695Sache 14711695Sache if ((fp = fopen(name, "r")) == NULL) 148101566Sache return (errno == 0 ? ENOENT : errno); 14911695Sache 150101498Sache if ((rl = _Read_RuneMagi(fp)) == NULL) { 151101566Sache saverr = (errno == 0 ? EFTYPE : errno); 152101498Sache (void)fclose(fp); 153101498Sache return (saverr); 15411695Sache } 155101498Sache (void)fclose(fp); 15611695Sache 157127835Stjr __mbrtowc = NULL; 158129179Stjr __mbsinit = NULL; 159132497Stjr __mbsnrtowcs = __mbsnrtowcs_std; 160127835Stjr __wcrtomb = NULL; 161132497Stjr __wcsnrtombs = __wcsnrtombs_std; 162136609Stjr rl->__sputrune = NULL; 163136609Stjr rl->__sgetrune = NULL; 164130961Stjr if (strcmp(rl->__encoding, "NONE") == 0) 165101498Sache ret = _none_init(rl); 166130961Stjr else if (strcmp(rl->__encoding, "UTF-8") == 0) 167104828Stjr ret = _UTF8_init(rl); 168130961Stjr else if (strcmp(rl->__encoding, "EUC") == 0) 169101498Sache ret = _EUC_init(rl); 170130961Stjr else if (strcmp(rl->__encoding, "GB18030") == 0) 171118146Sache ret = _GB18030_init(rl); 172130961Stjr else if (strcmp(rl->__encoding, "GB2312") == 0) 173122145Sdavidxu ret = _GB2312_init(rl); 174130961Stjr else if (strcmp(rl->__encoding, "GBK") == 0) 175115626Sache ret = _GBK_init(rl); 176130961Stjr else if (strcmp(rl->__encoding, "BIG5") == 0) 177101498Sache ret = _BIG5_init(rl); 178130961Stjr else if (strcmp(rl->__encoding, "MSKanji") == 0) 179101498Sache ret = _MSKanji_init(rl); 18029857Sache else 181101498Sache ret = EFTYPE; 182101498Sache if (ret == 0) { 183101498Sache if (CachedRuneLocale != NULL) { 184101498Sache /* See euc.c */ 185130961Stjr if (strcmp(CachedRuneLocale->__encoding, "EUC") == 0) 186130961Stjr free(CachedRuneLocale->__variable); 187101498Sache free(CachedRuneLocale); 188101498Sache } 189101498Sache CachedRuneLocale = _CurrentRuneLocale; 190101498Sache Cached__mb_cur_max = __mb_cur_max; 191123308Stjr Cached__mbrtowc = __mbrtowc; 192128004Stjr Cached__mbsinit = __mbsinit; 193132497Stjr Cached__mbsnrtowcs = __mbsnrtowcs; 194123308Stjr Cached__wcrtomb = __wcrtomb; 195132497Stjr Cached__wcsnrtombs = __wcsnrtombs; 196101498Sache (void)strcpy(ctype_encoding, encoding); 197101498Sache } else 198101498Sache free(rl); 199101498Sache 200101498Sache return (ret); 20111695Sache} 20211695Sache 203117270Sacheint 204117270Sache__wrap_setrunelocale(const char *locale) 205117270Sache{ 206117274Sache int ret = __setrunelocale(locale); 207117270Sache 208117270Sache if (ret != 0) { 209117270Sache errno = ret; 210117270Sache return (_LDP_ERROR); 211117270Sache } 212117270Sache return (_LDP_LOADED); 213117270Sache} 214117270Sache 215