setrunelocale.c revision 117274
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ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 37117270Sache/* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead.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 117274 2003-07-06 04:01:09Z 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 *); 57115626Sacheextern int _GBK_init(_RuneLocale *); 5892905Sobrienextern int _BIG5_init(_RuneLocale *); 5992905Sobrienextern int _MSKanji_init(_RuneLocale *); 60115626Sacheextern _RuneLocale *_Read_RuneMagi(FILE *); 6111695Sache 62117274Sachestatic int __setrunelocale(const char *); 63117270Sache 64117270Sache__warn_references(setrunelocale, "warning: setrunelocale() is deprecated. See setrunelocale(3)."); 6511695Sacheint 66101498Sachesetrunelocale(char *encoding) 6711695Sache{ 68117270Sache int ret; 69117270Sache 70117270Sache if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 71117270Sache (encoding[0] == '.' && 72117270Sache (encoding[1] == '\0' || 73117270Sache (encoding[1] == '.' && encoding[2] == '\0'))) || 74117270Sache strchr(encoding, '/') != NULL) 75117270Sache return (EINVAL); 76117270Sache 77117270Sache ret = __detect_path_locale(); 78117270Sache if (ret != 0) 79117270Sache return (ret); 80117270Sache 81117274Sache return (__setrunelocale((const char *)encoding)); 82117270Sache} 83117270Sache 84117270Sachestatic int 85117274Sache__setrunelocale(const char *encoding) 86117270Sache{ 8711695Sache FILE *fp; 8811695Sache char name[PATH_MAX]; 8911695Sache _RuneLocale *rl; 90101498Sache int saverr, ret; 91101498Sache static char ctype_encoding[ENCODING_LEN + 1]; 92101498Sache static _RuneLocale *CachedRuneLocale; 93101498Sache static int Cached__mb_cur_max; 9411695Sache 9511695Sache /* 9611695Sache * The "C" and "POSIX" locale are always here. 9711695Sache */ 98101498Sache if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 9911695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 100101488Sache __mb_cur_max = 1; 101101263Sache return (0); 10211695Sache } 10311695Sache 104101498Sache /* 105101498Sache * If the locale name is the same as our cache, use the cache. 106101498Sache */ 107101498Sache if (CachedRuneLocale != NULL && 108101498Sache strcmp(encoding, ctype_encoding) == 0) { 109101498Sache _CurrentRuneLocale = CachedRuneLocale; 110101498Sache __mb_cur_max = Cached__mb_cur_max; 111101498Sache return (0); 112101498Sache } 113101498Sache 114101498Sache /* 115101498Sache * Slurp the locale file into the cache. 116101498Sache */ 11724694Sache 118117270Sache /* Range checking not needed, encoding length already checked before */ 11920810Sjoerg (void) strcpy(name, _PathLocale); 12020810Sjoerg (void) strcat(name, "/"); 12120810Sjoerg (void) strcat(name, encoding); 12220810Sjoerg (void) strcat(name, "/LC_CTYPE"); 12311695Sache 12411695Sache if ((fp = fopen(name, "r")) == NULL) 125101566Sache return (errno == 0 ? ENOENT : errno); 12611695Sache 127101498Sache if ((rl = _Read_RuneMagi(fp)) == NULL) { 128101566Sache saverr = (errno == 0 ? EFTYPE : errno); 129101498Sache (void)fclose(fp); 130101498Sache return (saverr); 13111695Sache } 132101498Sache (void)fclose(fp); 13311695Sache 134101498Sache if (strcmp(rl->encoding, "NONE") == 0) 135101498Sache ret = _none_init(rl); 136101498Sache else if (strcmp(rl->encoding, "UTF2") == 0) 137101498Sache ret = _UTF2_init(rl); 138104828Stjr else if (strcmp(rl->encoding, "UTF-8") == 0) 139104828Stjr ret = _UTF8_init(rl); 140101498Sache else if (strcmp(rl->encoding, "EUC") == 0) 141101498Sache ret = _EUC_init(rl); 142115626Sache else if (strcmp(rl->encoding, "GBK") == 0) 143115626Sache ret = _GBK_init(rl); 144101498Sache else if (strcmp(rl->encoding, "BIG5") == 0) 145101498Sache ret = _BIG5_init(rl); 146101498Sache else if (strcmp(rl->encoding, "MSKanji") == 0) 147101498Sache ret = _MSKanji_init(rl); 14829857Sache else 149101498Sache ret = EFTYPE; 150101498Sache if (ret == 0) { 151101498Sache if (CachedRuneLocale != NULL) { 152101498Sache /* See euc.c */ 153101498Sache if (strcmp(CachedRuneLocale->encoding, "EUC") == 0) 154101498Sache free(CachedRuneLocale->variable); 155101498Sache free(CachedRuneLocale); 156101498Sache } 157101498Sache CachedRuneLocale = _CurrentRuneLocale; 158101498Sache Cached__mb_cur_max = __mb_cur_max; 159101498Sache (void)strcpy(ctype_encoding, encoding); 160101498Sache } else 161101498Sache free(rl); 162101498Sache 163101498Sache return (ret); 16411695Sache} 16511695Sache 166117270Sacheint 167117270Sache__wrap_setrunelocale(const char *locale) 168117270Sache{ 169117274Sache int ret = __setrunelocale(locale); 170117270Sache 171117270Sache if (ret != 0) { 172117270Sache errno = ret; 173117270Sache return (_LDP_ERROR); 174117270Sache } 175117270Sache return (_LDP_LOADED); 176117270Sache} 177117270Sache 178