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)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 int __mb_sb_limit;
50 extern _RuneLocale *_Read_RuneMagi(FILE *);
52 static int __setrunelocale(const char *);
55 __setrunelocale(const char *encoding)
61 size_t (*old__mbrtowc)(wchar_t * __restrict,
62 const char * __restrict, size_t, mbstate_t * __restrict);
63 size_t (*old__wcrtomb)(char * __restrict, wchar_t,
64 mbstate_t * __restrict);
65 int (*old__mbsinit)(const mbstate_t *);
66 size_t (*old__mbsnrtowcs)(wchar_t * __restrict,
67 const char ** __restrict, size_t, size_t, mbstate_t * __restrict);
68 size_t (*old__wcsnrtombs)(char * __restrict,
69 const wchar_t ** __restrict, size_t, size_t,
70 mbstate_t * __restrict);
71 static char ctype_encoding[ENCODING_LEN + 1];
72 static _RuneLocale *CachedRuneLocale;
73 static int Cached__mb_cur_max;
74 static int Cached__mb_sb_limit;
75 static size_t (*Cached__mbrtowc)(wchar_t * __restrict,
76 const char * __restrict, size_t, mbstate_t * __restrict);
77 static size_t (*Cached__wcrtomb)(char * __restrict, wchar_t,
78 mbstate_t * __restrict);
79 static int (*Cached__mbsinit)(const mbstate_t *);
80 static size_t (*Cached__mbsnrtowcs)(wchar_t * __restrict,
81 const char ** __restrict, size_t, size_t, mbstate_t * __restrict);
82 static size_t (*Cached__wcsnrtombs)(char * __restrict,
83 const wchar_t ** __restrict, size_t, size_t,
84 mbstate_t * __restrict);
87 * The "C" and "POSIX" locale are always here.
89 if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) {
90 (void) _none_init(&_DefaultRuneLocale);
95 * If the locale name is the same as our cache, use the cache.
97 if (CachedRuneLocale != NULL &&
98 strcmp(encoding, ctype_encoding) == 0) {
99 _CurrentRuneLocale = CachedRuneLocale;
100 __mb_cur_max = Cached__mb_cur_max;
101 __mb_sb_limit = Cached__mb_sb_limit;
102 __mbrtowc = Cached__mbrtowc;
103 __mbsinit = Cached__mbsinit;
104 __mbsnrtowcs = Cached__mbsnrtowcs;
105 __wcrtomb = Cached__wcrtomb;
106 __wcsnrtombs = Cached__wcsnrtombs;
111 * Slurp the locale file into the cache.
114 /* Range checking not needed, encoding length already checked before */
115 (void) strcpy(name, _PathLocale);
116 (void) strcat(name, "/");
117 (void) strcat(name, encoding);
118 (void) strcat(name, "/LC_CTYPE");
120 if ((fp = fopen(name, "r")) == NULL)
121 return (errno == 0 ? ENOENT : errno);
123 if ((rl = _Read_RuneMagi(fp)) == NULL) {
124 saverr = (errno == 0 ? EFTYPE : errno);
130 old__mbrtowc = __mbrtowc;
131 old__mbsinit = __mbsinit;
132 old__mbsnrtowcs = __mbsnrtowcs;
133 old__wcrtomb = __wcrtomb;
134 old__wcsnrtombs = __wcsnrtombs;
138 __mbsnrtowcs = __mbsnrtowcs_std;
140 __wcsnrtombs = __wcsnrtombs_std;
142 rl->__sputrune = NULL;
143 rl->__sgetrune = NULL;
144 if (strcmp(rl->__encoding, "NONE") == 0)
145 ret = _none_init(rl);
146 else if (strcmp(rl->__encoding, "ASCII") == 0)
147 ret = _ascii_init(rl);
148 else if (strcmp(rl->__encoding, "UTF-8") == 0)
149 ret = _UTF8_init(rl);
150 else if (strcmp(rl->__encoding, "EUC") == 0)
152 else if (strcmp(rl->__encoding, "GB18030") == 0)
153 ret = _GB18030_init(rl);
154 else if (strcmp(rl->__encoding, "GB2312") == 0)
155 ret = _GB2312_init(rl);
156 else if (strcmp(rl->__encoding, "GBK") == 0)
158 else if (strcmp(rl->__encoding, "BIG5") == 0)
159 ret = _BIG5_init(rl);
160 else if (strcmp(rl->__encoding, "MSKanji") == 0)
161 ret = _MSKanji_init(rl);
166 if (CachedRuneLocale != NULL) {
168 if (strcmp(CachedRuneLocale->__encoding, "EUC") == 0)
169 free(CachedRuneLocale->__variable);
170 free(CachedRuneLocale);
172 CachedRuneLocale = _CurrentRuneLocale;
173 Cached__mb_cur_max = __mb_cur_max;
174 Cached__mb_sb_limit = __mb_sb_limit;
175 Cached__mbrtowc = __mbrtowc;
176 Cached__mbsinit = __mbsinit;
177 Cached__mbsnrtowcs = __mbsnrtowcs;
178 Cached__wcrtomb = __wcrtomb;
179 Cached__wcsnrtombs = __wcsnrtombs;
180 (void)strcpy(ctype_encoding, encoding);
182 __mbrtowc = old__mbrtowc;
183 __mbsinit = old__mbsinit;
184 __mbsnrtowcs = old__mbsnrtowcs;
185 __wcrtomb = old__wcrtomb;
186 __wcsnrtombs = old__wcsnrtombs;
194 __wrap_setrunelocale(const char *locale)
196 int ret = __setrunelocale(locale);
202 return (_LDP_LOADED);