setrunelocale.c revision 129153
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ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 37117270Sache/* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead.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 129153 2004-05-12 14:09:04Z 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 *); 10311695Sache 10411695Sache /* 10511695Sache * The "C" and "POSIX" locale are always here. 10611695Sache */ 107101498Sache if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 10811695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 109101488Sache __mb_cur_max = 1; 110123308Stjr __mbrtowc = _none_mbrtowc; 111123308Stjr __wcrtomb = _none_wcrtomb; 112128004Stjr __mbsinit = _none_mbsinit; 113101263Sache return (0); 11411695Sache } 11511695Sache 116101498Sache /* 117101498Sache * If the locale name is the same as our cache, use the cache. 118101498Sache */ 119101498Sache if (CachedRuneLocale != NULL && 120101498Sache strcmp(encoding, ctype_encoding) == 0) { 121101498Sache _CurrentRuneLocale = CachedRuneLocale; 122101498Sache __mb_cur_max = Cached__mb_cur_max; 123123308Stjr __mbrtowc = Cached__mbrtowc; 124123308Stjr __wcrtomb = Cached__wcrtomb; 125128004Stjr __mbsinit = Cached__mbsinit; 126101498Sache return (0); 127101498Sache } 128101498Sache 129101498Sache /* 130101498Sache * Slurp the locale file into the cache. 131101498Sache */ 13224694Sache 133117270Sache /* Range checking not needed, encoding length already checked before */ 13420810Sjoerg (void) strcpy(name, _PathLocale); 13520810Sjoerg (void) strcat(name, "/"); 13620810Sjoerg (void) strcat(name, encoding); 13720810Sjoerg (void) strcat(name, "/LC_CTYPE"); 13811695Sache 13911695Sache if ((fp = fopen(name, "r")) == NULL) 140101566Sache return (errno == 0 ? ENOENT : errno); 14111695Sache 142101498Sache if ((rl = _Read_RuneMagi(fp)) == NULL) { 143101566Sache saverr = (errno == 0 ? EFTYPE : errno); 144101498Sache (void)fclose(fp); 145101498Sache return (saverr); 14611695Sache } 147101498Sache (void)fclose(fp); 14811695Sache 149127835Stjr __mbrtowc = NULL; 150127835Stjr __wcrtomb = NULL; 151128004Stjr __mbsinit = NULL; 152121845Stjr rl->sputrune = __emulated_sputrune; 153121845Stjr rl->sgetrune = __emulated_sgetrune; 154101498Sache if (strcmp(rl->encoding, "NONE") == 0) 155101498Sache ret = _none_init(rl); 156101498Sache else if (strcmp(rl->encoding, "UTF2") == 0) 157101498Sache ret = _UTF2_init(rl); 158104828Stjr else if (strcmp(rl->encoding, "UTF-8") == 0) 159104828Stjr ret = _UTF8_init(rl); 160101498Sache else if (strcmp(rl->encoding, "EUC") == 0) 161101498Sache ret = _EUC_init(rl); 162118146Sache else if (strcmp(rl->encoding, "GB18030") == 0) 163118146Sache ret = _GB18030_init(rl); 164122145Sdavidxu else if (strcmp(rl->encoding, "GB2312") == 0) 165122145Sdavidxu ret = _GB2312_init(rl); 166115626Sache else if (strcmp(rl->encoding, "GBK") == 0) 167115626Sache ret = _GBK_init(rl); 168101498Sache else if (strcmp(rl->encoding, "BIG5") == 0) 169101498Sache ret = _BIG5_init(rl); 170101498Sache else if (strcmp(rl->encoding, "MSKanji") == 0) 171101498Sache ret = _MSKanji_init(rl); 17229857Sache else 173101498Sache ret = EFTYPE; 174101498Sache if (ret == 0) { 175101498Sache if (CachedRuneLocale != NULL) { 176101498Sache /* See euc.c */ 177101498Sache if (strcmp(CachedRuneLocale->encoding, "EUC") == 0) 178101498Sache free(CachedRuneLocale->variable); 179101498Sache free(CachedRuneLocale); 180101498Sache } 181101498Sache CachedRuneLocale = _CurrentRuneLocale; 182101498Sache Cached__mb_cur_max = __mb_cur_max; 183123308Stjr Cached__mbrtowc = __mbrtowc; 184128004Stjr Cached__mbsinit = __mbsinit; 185123308Stjr Cached__wcrtomb = __wcrtomb; 186101498Sache (void)strcpy(ctype_encoding, encoding); 187101498Sache } else 188101498Sache free(rl); 189101498Sache 190101498Sache return (ret); 19111695Sache} 19211695Sache 193117270Sacheint 194117270Sache__wrap_setrunelocale(const char *locale) 195117270Sache{ 196117274Sache int ret = __setrunelocale(locale); 197117270Sache 198117270Sache if (ret != 0) { 199117270Sache errno = ret; 200117270Sache return (_LDP_ERROR); 201117270Sache } 202117270Sache return (_LDP_LOADED); 203117270Sache} 204117270Sache 205