setrunelocale.c revision 132497
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ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 37117270Sache/* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead.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 132497 2004-07-21 10:54:57Z tjr $"); 4292986Sobrien 4311695Sache#include <rune.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 *); 5692905Sobrienextern int _UTF2_init(_RuneLocale *); 57104828Stjrextern int _UTF8_init(_RuneLocale *); 5892905Sobrienextern int _EUC_init(_RuneLocale *); 59118146Sacheextern int _GB18030_init(_RuneLocale *); 60122145Sdavidxuextern int _GB2312_init(_RuneLocale *); 61115626Sacheextern int _GBK_init(_RuneLocale *); 6292905Sobrienextern int _BIG5_init(_RuneLocale *); 6392905Sobrienextern int _MSKanji_init(_RuneLocale *); 64115626Sacheextern _RuneLocale *_Read_RuneMagi(FILE *); 6511695Sache 66117274Sachestatic int __setrunelocale(const char *); 67117270Sache 68117270Sache__warn_references(setrunelocale, "warning: setrunelocale() is deprecated. See setrunelocale(3)."); 6911695Sacheint 70101498Sachesetrunelocale(char *encoding) 7111695Sache{ 72117270Sache int ret; 73117270Sache 74117270Sache if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 75117270Sache (encoding[0] == '.' && 76117270Sache (encoding[1] == '\0' || 77117270Sache (encoding[1] == '.' && encoding[2] == '\0'))) || 78117270Sache strchr(encoding, '/') != NULL) 79117270Sache return (EINVAL); 80117270Sache 81117270Sache ret = __detect_path_locale(); 82117270Sache if (ret != 0) 83117270Sache return (ret); 84117270Sache 85117274Sache return (__setrunelocale((const char *)encoding)); 86117270Sache} 87117270Sache 88117270Sachestatic int 89117274Sache__setrunelocale(const char *encoding) 90117270Sache{ 9111695Sache FILE *fp; 9211695Sache char name[PATH_MAX]; 9311695Sache _RuneLocale *rl; 94101498Sache int saverr, ret; 95101498Sache static char ctype_encoding[ENCODING_LEN + 1]; 96101498Sache static _RuneLocale *CachedRuneLocale; 97101498Sache static int Cached__mb_cur_max; 98123308Stjr static size_t (*Cached__mbrtowc)(wchar_t * __restrict, 99123308Stjr const char * __restrict, size_t, mbstate_t * __restrict); 100123308Stjr static size_t (*Cached__wcrtomb)(char * __restrict, wchar_t, 101123308Stjr mbstate_t * __restrict); 102128004Stjr static int (*Cached__mbsinit)(const mbstate_t *); 103132497Stjr static size_t (*Cached__mbsnrtowcs)(wchar_t * __restrict, 104132497Stjr const char ** __restrict, size_t, size_t, mbstate_t * __restrict); 105132497Stjr static size_t (*Cached__wcsnrtombs)(char * __restrict, 106132497Stjr const wchar_t ** __restrict, size_t, size_t, 107132497Stjr mbstate_t * __restrict); 10811695Sache 10911695Sache /* 11011695Sache * The "C" and "POSIX" locale are always here. 11111695Sache */ 112101498Sache if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 11311695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 114101488Sache __mb_cur_max = 1; 115123308Stjr __mbrtowc = _none_mbrtowc; 116129179Stjr __mbsinit = _none_mbsinit; 117132497Stjr __mbsnrtowcs = _none_mbsnrtowcs; 118123308Stjr __wcrtomb = _none_wcrtomb; 119132497Stjr __wcsnrtombs = _none_wcsnrtombs; 120101263Sache return (0); 12111695Sache } 12211695Sache 123101498Sache /* 124101498Sache * If the locale name is the same as our cache, use the cache. 125101498Sache */ 126101498Sache if (CachedRuneLocale != NULL && 127101498Sache strcmp(encoding, ctype_encoding) == 0) { 128101498Sache _CurrentRuneLocale = CachedRuneLocale; 129101498Sache __mb_cur_max = Cached__mb_cur_max; 130123308Stjr __mbrtowc = Cached__mbrtowc; 131129179Stjr __mbsinit = Cached__mbsinit; 132132497Stjr __mbsnrtowcs = Cached__mbsnrtowcs; 133123308Stjr __wcrtomb = Cached__wcrtomb; 134132497Stjr __wcsnrtombs = Cached__wcsnrtombs; 135101498Sache return (0); 136101498Sache } 137101498Sache 138101498Sache /* 139101498Sache * Slurp the locale file into the cache. 140101498Sache */ 14124694Sache 142117270Sache /* Range checking not needed, encoding length already checked before */ 14320810Sjoerg (void) strcpy(name, _PathLocale); 14420810Sjoerg (void) strcat(name, "/"); 14520810Sjoerg (void) strcat(name, encoding); 14620810Sjoerg (void) strcat(name, "/LC_CTYPE"); 14711695Sache 14811695Sache if ((fp = fopen(name, "r")) == NULL) 149101566Sache return (errno == 0 ? ENOENT : errno); 15011695Sache 151101498Sache if ((rl = _Read_RuneMagi(fp)) == NULL) { 152101566Sache saverr = (errno == 0 ? EFTYPE : errno); 153101498Sache (void)fclose(fp); 154101498Sache return (saverr); 15511695Sache } 156101498Sache (void)fclose(fp); 15711695Sache 158127835Stjr __mbrtowc = NULL; 159129179Stjr __mbsinit = NULL; 160132497Stjr __mbsnrtowcs = __mbsnrtowcs_std; 161127835Stjr __wcrtomb = NULL; 162132497Stjr __wcsnrtombs = __wcsnrtombs_std; 163130961Stjr rl->__sputrune = __emulated_sputrune; 164130961Stjr rl->__sgetrune = __emulated_sgetrune; 165130961Stjr if (strcmp(rl->__encoding, "NONE") == 0) 166101498Sache ret = _none_init(rl); 167130961Stjr else if (strcmp(rl->__encoding, "UTF2") == 0) 168101498Sache ret = _UTF2_init(rl); 169130961Stjr else if (strcmp(rl->__encoding, "UTF-8") == 0) 170104828Stjr ret = _UTF8_init(rl); 171130961Stjr else if (strcmp(rl->__encoding, "EUC") == 0) 172101498Sache ret = _EUC_init(rl); 173130961Stjr else if (strcmp(rl->__encoding, "GB18030") == 0) 174118146Sache ret = _GB18030_init(rl); 175130961Stjr else if (strcmp(rl->__encoding, "GB2312") == 0) 176122145Sdavidxu ret = _GB2312_init(rl); 177130961Stjr else if (strcmp(rl->__encoding, "GBK") == 0) 178115626Sache ret = _GBK_init(rl); 179130961Stjr else if (strcmp(rl->__encoding, "BIG5") == 0) 180101498Sache ret = _BIG5_init(rl); 181130961Stjr else if (strcmp(rl->__encoding, "MSKanji") == 0) 182101498Sache ret = _MSKanji_init(rl); 18329857Sache else 184101498Sache ret = EFTYPE; 185101498Sache if (ret == 0) { 186101498Sache if (CachedRuneLocale != NULL) { 187101498Sache /* See euc.c */ 188130961Stjr if (strcmp(CachedRuneLocale->__encoding, "EUC") == 0) 189130961Stjr free(CachedRuneLocale->__variable); 190101498Sache free(CachedRuneLocale); 191101498Sache } 192101498Sache CachedRuneLocale = _CurrentRuneLocale; 193101498Sache Cached__mb_cur_max = __mb_cur_max; 194123308Stjr Cached__mbrtowc = __mbrtowc; 195128004Stjr Cached__mbsinit = __mbsinit; 196132497Stjr Cached__mbsnrtowcs = __mbsnrtowcs; 197123308Stjr Cached__wcrtomb = __wcrtomb; 198132497Stjr Cached__wcsnrtombs = __wcsnrtombs; 199101498Sache (void)strcpy(ctype_encoding, encoding); 200101498Sache } else 201101498Sache free(rl); 202101498Sache 203101498Sache return (ret); 20411695Sache} 20511695Sache 206117270Sacheint 207117270Sache__wrap_setrunelocale(const char *locale) 208117270Sache{ 209117274Sache int ret = __setrunelocale(locale); 210117270Sache 211117270Sache if (ret != 0) { 212117270Sache errno = ret; 213117270Sache return (_LDP_ERROR); 214117270Sache } 215117270Sache return (_LDP_LOADED); 216117270Sache} 217117270Sache 218