setrunelocale.c revision 118146
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ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 37117270Sache/* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead.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 118146 2003-07-29 07:52:44Z ache $"); 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> 50117270Sache#include "ldpart.h" 5122330Sache#include "setlocale.h" 5211695Sache 5392905Sobrienextern int _none_init(_RuneLocale *); 5492905Sobrienextern int _UTF2_init(_RuneLocale *); 55104828Stjrextern int _UTF8_init(_RuneLocale *); 5692905Sobrienextern int _EUC_init(_RuneLocale *); 57118146Sacheextern int _GB18030_init(_RuneLocale *); 58115626Sacheextern int _GBK_init(_RuneLocale *); 5992905Sobrienextern int _BIG5_init(_RuneLocale *); 6092905Sobrienextern int _MSKanji_init(_RuneLocale *); 61115626Sacheextern _RuneLocale *_Read_RuneMagi(FILE *); 6211695Sache 63117274Sachestatic int __setrunelocale(const char *); 64117270Sache 65117270Sache__warn_references(setrunelocale, "warning: setrunelocale() is deprecated. See setrunelocale(3)."); 6611695Sacheint 67101498Sachesetrunelocale(char *encoding) 6811695Sache{ 69117270Sache int ret; 70117270Sache 71117270Sache if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 72117270Sache (encoding[0] == '.' && 73117270Sache (encoding[1] == '\0' || 74117270Sache (encoding[1] == '.' && encoding[2] == '\0'))) || 75117270Sache strchr(encoding, '/') != NULL) 76117270Sache return (EINVAL); 77117270Sache 78117270Sache ret = __detect_path_locale(); 79117270Sache if (ret != 0) 80117270Sache return (ret); 81117270Sache 82117274Sache return (__setrunelocale((const char *)encoding)); 83117270Sache} 84117270Sache 85117270Sachestatic int 86117274Sache__setrunelocale(const char *encoding) 87117270Sache{ 8811695Sache FILE *fp; 8911695Sache char name[PATH_MAX]; 9011695Sache _RuneLocale *rl; 91101498Sache int saverr, ret; 92101498Sache static char ctype_encoding[ENCODING_LEN + 1]; 93101498Sache static _RuneLocale *CachedRuneLocale; 94101498Sache static int Cached__mb_cur_max; 9511695Sache 9611695Sache /* 9711695Sache * The "C" and "POSIX" locale are always here. 9811695Sache */ 99101498Sache if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 10011695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 101101488Sache __mb_cur_max = 1; 102101263Sache return (0); 10311695Sache } 10411695Sache 105101498Sache /* 106101498Sache * If the locale name is the same as our cache, use the cache. 107101498Sache */ 108101498Sache if (CachedRuneLocale != NULL && 109101498Sache strcmp(encoding, ctype_encoding) == 0) { 110101498Sache _CurrentRuneLocale = CachedRuneLocale; 111101498Sache __mb_cur_max = Cached__mb_cur_max; 112101498Sache return (0); 113101498Sache } 114101498Sache 115101498Sache /* 116101498Sache * Slurp the locale file into the cache. 117101498Sache */ 11824694Sache 119117270Sache /* Range checking not needed, encoding length already checked before */ 12020810Sjoerg (void) strcpy(name, _PathLocale); 12120810Sjoerg (void) strcat(name, "/"); 12220810Sjoerg (void) strcat(name, encoding); 12320810Sjoerg (void) strcat(name, "/LC_CTYPE"); 12411695Sache 12511695Sache if ((fp = fopen(name, "r")) == NULL) 126101566Sache return (errno == 0 ? ENOENT : errno); 12711695Sache 128101498Sache if ((rl = _Read_RuneMagi(fp)) == NULL) { 129101566Sache saverr = (errno == 0 ? EFTYPE : errno); 130101498Sache (void)fclose(fp); 131101498Sache return (saverr); 13211695Sache } 133101498Sache (void)fclose(fp); 13411695Sache 135101498Sache if (strcmp(rl->encoding, "NONE") == 0) 136101498Sache ret = _none_init(rl); 137101498Sache else if (strcmp(rl->encoding, "UTF2") == 0) 138101498Sache ret = _UTF2_init(rl); 139104828Stjr else if (strcmp(rl->encoding, "UTF-8") == 0) 140104828Stjr ret = _UTF8_init(rl); 141101498Sache else if (strcmp(rl->encoding, "EUC") == 0) 142101498Sache ret = _EUC_init(rl); 143118146Sache else if (strcmp(rl->encoding, "GB18030") == 0) 144118146Sache ret = _GB18030_init(rl); 145115626Sache else if (strcmp(rl->encoding, "GBK") == 0) 146115626Sache ret = _GBK_init(rl); 147101498Sache else if (strcmp(rl->encoding, "BIG5") == 0) 148101498Sache ret = _BIG5_init(rl); 149101498Sache else if (strcmp(rl->encoding, "MSKanji") == 0) 150101498Sache ret = _MSKanji_init(rl); 15129857Sache else 152101498Sache ret = EFTYPE; 153101498Sache if (ret == 0) { 154101498Sache if (CachedRuneLocale != NULL) { 155101498Sache /* See euc.c */ 156101498Sache if (strcmp(CachedRuneLocale->encoding, "EUC") == 0) 157101498Sache free(CachedRuneLocale->variable); 158101498Sache free(CachedRuneLocale); 159101498Sache } 160101498Sache CachedRuneLocale = _CurrentRuneLocale; 161101498Sache Cached__mb_cur_max = __mb_cur_max; 162101498Sache (void)strcpy(ctype_encoding, encoding); 163101498Sache } else 164101498Sache free(rl); 165101498Sache 166101498Sache return (ret); 16711695Sache} 16811695Sache 169117270Sacheint 170117270Sache__wrap_setrunelocale(const char *locale) 171117270Sache{ 172117274Sache int ret = __setrunelocale(locale); 173117270Sache 174117270Sache if (ret != 0) { 175117270Sache errno = ret; 176117270Sache return (_LDP_ERROR); 177117270Sache } 178117270Sache return (_LDP_LOADED); 179117270Sache} 180117270Sache 181