1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Paul Borman at Krystal Technologies. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 /* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead. */ 38 #define OBSOLETE_IN_6 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <rune.h> 44 #include <errno.h> 45 #include <limits.h> 46 #include <string.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <unistd.h> 50 #include "ldpart.h" 51 #include "setlocale.h" 52 53 extern int _none_init(_RuneLocale *); 54 extern int _UTF2_init(_RuneLocale *); 55 extern int _UTF8_init(_RuneLocale *); 56 extern int _EUC_init(_RuneLocale *); 57 extern int _GBK_init(_RuneLocale *); 58 extern int _BIG5_init(_RuneLocale *); 59 extern int _MSKanji_init(_RuneLocale *); 60 extern _RuneLocale *_Read_RuneMagi(FILE *); 61 62 static int __setrunelocale(const char *); 63 64 __warn_references(setrunelocale, "warning: setrunelocale() is deprecated. See setrunelocale(3)."); 65 int 66 setrunelocale(char *encoding) 67 { 68 int ret; 69 70 if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 71 (encoding[0] == '.' && 72 (encoding[1] == '\0' || 73 (encoding[1] == '.' && encoding[2] == '\0'))) || 74 strchr(encoding, '/') != NULL) 75 return (EINVAL); 76 77 ret = __detect_path_locale(); 78 if (ret != 0) 79 return (ret); 80 81 return (__setrunelocale((const char *)encoding)); 82 } 83 84 static int 85 __setrunelocale(const char *encoding) 86 { 87 FILE *fp; 88 char name[PATH_MAX]; 89 _RuneLocale *rl; 90 int saverr, ret; 91 static char ctype_encoding[ENCODING_LEN + 1]; 92 static _RuneLocale *CachedRuneLocale; 93 static int Cached__mb_cur_max; 94 95 /* 96 * The "C" and "POSIX" locale are always here. 97 */ 98 if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 99 _CurrentRuneLocale = &_DefaultRuneLocale; 100 __mb_cur_max = 1; 101 return (0); 102 } 103 104 /* 105 * If the locale name is the same as our cache, use the cache. 106 */ 107 if (CachedRuneLocale != NULL && 108 strcmp(encoding, ctype_encoding) == 0) { 109 _CurrentRuneLocale = CachedRuneLocale; 110 __mb_cur_max = Cached__mb_cur_max; 111 return (0); 112 } 113 114 /* 115 * Slurp the locale file into the cache. 116 */ 117 118 /* Range checking not needed, encoding length already checked before */ 119 (void) strcpy(name, _PathLocale); 120 (void) strcat(name, "/"); 121 (void) strcat(name, encoding); 122 (void) strcat(name, "/LC_CTYPE"); 123 124 if ((fp = fopen(name, "r")) == NULL) 125 return (errno == 0 ? ENOENT : errno); 126 127 if ((rl = _Read_RuneMagi(fp)) == NULL) { 128 saverr = (errno == 0 ? EFTYPE : errno); 129 (void)fclose(fp); 130 return (saverr); 131 } 132 (void)fclose(fp); 133 134 if (strcmp(rl->encoding, "NONE") == 0) 135 ret = _none_init(rl); 136 else if (strcmp(rl->encoding, "UTF2") == 0) 137 ret = _UTF2_init(rl); 138 else if (strcmp(rl->encoding, "UTF-8") == 0) 139 ret = _UTF8_init(rl); 140 else if (strcmp(rl->encoding, "EUC") == 0) 141 ret = _EUC_init(rl); 142 else if (strcmp(rl->encoding, "GBK") == 0) 143 ret = _GBK_init(rl); 144 else if (strcmp(rl->encoding, "BIG5") == 0) 145 ret = _BIG5_init(rl); 146 else if (strcmp(rl->encoding, "MSKanji") == 0) 147 ret = _MSKanji_init(rl); 148 else 149 ret = EFTYPE; 150 if (ret == 0) { 151 if (CachedRuneLocale != NULL) { 152 /* See euc.c */ 153 if (strcmp(CachedRuneLocale->encoding, "EUC") == 0) 154 free(CachedRuneLocale->variable); 155 free(CachedRuneLocale); 156 } 157 CachedRuneLocale = _CurrentRuneLocale; 158 Cached__mb_cur_max = __mb_cur_max; 159 (void)strcpy(ctype_encoding, encoding); 160 } else 161 free(rl); 162 163 return (ret); 164 } 165 166 int 167 __wrap_setrunelocale(const char *locale) 168 { 169 int ret = __setrunelocale(locale); 170 171 if (ret != 0) { 172 errno = ret; 173 return (_LDP_ERROR); 174 } 175 return (_LDP_LOADED); 176 } 177 178