3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
46 #include "setlocale.h"
48 extern _RuneLocale *_Read_RuneMagi(FILE *);
50 static int __setrunelocale(const char *);
53 __setrunelocale(const char *encoding)
59 static char ctype_encoding[ENCODING_LEN + 1];
60 static _RuneLocale *CachedRuneLocale;
61 static int Cached__mb_cur_max;
62 static size_t (*Cached__mbrtowc)(wchar_t * __restrict,
63 const char * __restrict, size_t, mbstate_t * __restrict);
64 static size_t (*Cached__wcrtomb)(char * __restrict, wchar_t,
65 mbstate_t * __restrict);
66 static int (*Cached__mbsinit)(const mbstate_t *);
67 static size_t (*Cached__mbsnrtowcs)(wchar_t * __restrict,
68 const char ** __restrict, size_t, size_t, mbstate_t * __restrict);
69 static size_t (*Cached__wcsnrtombs)(char * __restrict,
70 const wchar_t ** __restrict, size_t, size_t,
71 mbstate_t * __restrict);
74 * The "C" and "POSIX" locale are always here.
76 if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) {
77 _none_init(&_DefaultRuneLocale);
82 * If the locale name is the same as our cache, use the cache.
84 if (CachedRuneLocale != NULL &&
85 strcmp(encoding, ctype_encoding) == 0) {
86 _CurrentRuneLocale = CachedRuneLocale;
87 __mb_cur_max = Cached__mb_cur_max;
88 __mbrtowc = Cached__mbrtowc;
89 __mbsinit = Cached__mbsinit;
90 __mbsnrtowcs = Cached__mbsnrtowcs;
91 __wcrtomb = Cached__wcrtomb;
92 __wcsnrtombs = Cached__wcsnrtombs;
97 * Slurp the locale file into the cache.
100 /* Range checking not needed, encoding length already checked before */
101 (void) strcpy(name, _PathLocale);
102 (void) strcat(name, "/");
103 (void) strcat(name, encoding);
104 (void) strcat(name, "/LC_CTYPE");
106 if ((fp = fopen(name, "r")) == NULL)
107 return (errno == 0 ? ENOENT : errno);
109 if ((rl = _Read_RuneMagi(fp)) == NULL) {
110 saverr = (errno == 0 ? EFTYPE : errno);
118 __mbsnrtowcs = __mbsnrtowcs_std;
120 __wcsnrtombs = __wcsnrtombs_std;
121 rl->__sputrune = NULL;
122 rl->__sgetrune = NULL;
123 if (strcmp(rl->__encoding, "NONE") == 0)
124 ret = _none_init(rl);
125 else if (strcmp(rl->__encoding, "UTF-8") == 0)
126 ret = _UTF8_init(rl);
127 else if (strcmp(rl->__encoding, "EUC") == 0)
129 else if (strcmp(rl->__encoding, "GB18030") == 0)
130 ret = _GB18030_init(rl);
131 else if (strcmp(rl->__encoding, "GB2312") == 0)
132 ret = _GB2312_init(rl);
133 else if (strcmp(rl->__encoding, "GBK") == 0)
135 else if (strcmp(rl->__encoding, "BIG5") == 0)
136 ret = _BIG5_init(rl);
137 else if (strcmp(rl->__encoding, "MSKanji") == 0)
138 ret = _MSKanji_init(rl);
142 if (CachedRuneLocale != NULL) {
144 if (strcmp(CachedRuneLocale->__encoding, "EUC") == 0)
145 free(CachedRuneLocale->__variable);
146 free(CachedRuneLocale);
148 CachedRuneLocale = _CurrentRuneLocale;
149 Cached__mb_cur_max = __mb_cur_max;
150 Cached__mbrtowc = __mbrtowc;
151 Cached__mbsinit = __mbsinit;
152 Cached__mbsnrtowcs = __mbsnrtowcs;
153 Cached__wcrtomb = __wcrtomb;
154 Cached__wcsnrtombs = __wcsnrtombs;
155 (void)strcpy(ctype_encoding, encoding);
163 __wrap_setrunelocale(const char *locale)
165 int ret = __setrunelocale(locale);
171 return (_LDP_LOADED);