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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 /* setrunelocale() is obsolete in FreeBSD 6 -- use ANSI functions instead.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 _GB18030_init(_RuneLocale *); 58 extern int _GBK_init(_RuneLocale *); 59 extern int _BIG5_init(_RuneLocale *); 60 extern int _MSKanji_init(_RuneLocale *); 61 extern _RuneLocale *_Read_RuneMagi(FILE *); 62 63 static int __setrunelocale(const char *); 64 65 __warn_references(setrunelocale, "warning: setrunelocale() is deprecated. See setrunelocale(3)."); 66 int 67 setrunelocale(char *encoding) 68 { 69 int ret; 70 71 if (!encoding || !*encoding || strlen(encoding) > ENCODING_LEN || 72 (encoding[0] == '.' && 73 (encoding[1] == '\0' || 74 (encoding[1] == '.' && encoding[2] == '\0'))) || 75 strchr(encoding, '/') != NULL) 76 return (EINVAL); 77 78 ret = __detect_path_locale(); 79 if (ret != 0) 80 return (ret); 81 82 return (__setrunelocale((const char *)encoding)); 83 } 84 85 static int 86 __setrunelocale(const char *encoding) 87 { 88 FILE *fp; 89 char name[PATH_MAX]; 90 _RuneLocale *rl; 91 int saverr, ret; 92 static char ctype_encoding[ENCODING_LEN + 1]; 93 static _RuneLocale *CachedRuneLocale; 94 static int Cached__mb_cur_max; 95 96 /* 97 * The "C" and "POSIX" locale are always here. 98 */ 99 if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { 100 _CurrentRuneLocale = &_DefaultRuneLocale; 101 __mb_cur_max = 1; 102 return (0); 103 } 104 105 /* 106 * If the locale name is the same as our cache, use the cache. 107 */ 108 if (CachedRuneLocale != NULL && 109 strcmp(encoding, ctype_encoding) == 0) { 110 _CurrentRuneLocale = CachedRuneLocale; 111 __mb_cur_max = Cached__mb_cur_max; 112 return (0); 113 } 114 115 /* 116 * Slurp the locale file into the cache. 117 */ 118 119 /* Range checking not needed, encoding length already checked before */ 120 (void) strcpy(name, _PathLocale); 121 (void) strcat(name, "/"); 122 (void) strcat(name, encoding); 123 (void) strcat(name, "/LC_CTYPE"); 124 125 if ((fp = fopen(name, "r")) == NULL) 126 return (errno == 0 ? ENOENT : errno); 127 128 if ((rl = _Read_RuneMagi(fp)) == NULL) { 129 saverr = (errno == 0 ? EFTYPE : errno); 130 (void)fclose(fp); 131 return (saverr); 132 } 133 (void)fclose(fp); 134 135 if (strcmp(rl->encoding, "NONE") == 0) 136 ret = _none_init(rl); 137 else if (strcmp(rl->encoding, "UTF2") == 0) 138 ret = _UTF2_init(rl); 139 else if (strcmp(rl->encoding, "UTF-8") == 0) 140 ret = _UTF8_init(rl); 141 else if (strcmp(rl->encoding, "EUC") == 0) 142 ret = _EUC_init(rl); 143 else if (strcmp(rl->encoding, "GB18030") == 0) 144 ret = _GB18030_init(rl); 145 else if (strcmp(rl->encoding, "GBK") == 0) 146 ret = _GBK_init(rl); 147 else if (strcmp(rl->encoding, "BIG5") == 0) 148 ret = _BIG5_init(rl); 149 else if (strcmp(rl->encoding, "MSKanji") == 0) 150 ret = _MSKanji_init(rl); 151 else 152 ret = EFTYPE; 153 if (ret == 0) { 154 if (CachedRuneLocale != NULL) { 155 /* See euc.c */ 156 if (strcmp(CachedRuneLocale->encoding, "EUC") == 0) 157 free(CachedRuneLocale->variable); 158 free(CachedRuneLocale); 159 } 160 CachedRuneLocale = _CurrentRuneLocale; 161 Cached__mb_cur_max = __mb_cur_max; 162 (void)strcpy(ctype_encoding, encoding); 163 } else 164 free(rl); 165 166 return (ret); 167 } 168 169 int 170 __wrap_setrunelocale(const char *locale) 171 { 172 int ret = __setrunelocale(locale); 173 174 if (ret != 0) { 175 errno = ret; 176 return (_LDP_ERROR); 177 } 178 return (_LDP_LOADED); 179 } 180 181