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 _RuneLocale *_Read_RuneMagi(FILE *);
50 static int __setrunelocale(const char *);
53 __setrunelocale(const char *encoding)
59 size_t (*old__mbrtowc)(wchar_t * __restrict,
60 const char * __restrict, size_t, mbstate_t * __restrict);
61 size_t (*old__wcrtomb)(char * __restrict, wchar_t,
62 mbstate_t * __restrict);
63 int (*old__mbsinit)(const mbstate_t *);
64 size_t (*old__mbsnrtowcs)(wchar_t * __restrict,
65 const char ** __restrict, size_t, size_t, mbstate_t * __restrict);
66 size_t (*old__wcsnrtombs)(char * __restrict,
67 const wchar_t ** __restrict, size_t, size_t,
68 mbstate_t * __restrict);
69 static char ctype_encoding[ENCODING_LEN + 1];
70 static _RuneLocale *CachedRuneLocale;
71 static int Cached__mb_cur_max;
72 static size_t (*Cached__mbrtowc)(wchar_t * __restrict,
73 const char * __restrict, size_t, mbstate_t * __restrict);
74 static size_t (*Cached__wcrtomb)(char * __restrict, wchar_t,
75 mbstate_t * __restrict);
76 static int (*Cached__mbsinit)(const mbstate_t *);
77 static size_t (*Cached__mbsnrtowcs)(wchar_t * __restrict,
78 const char ** __restrict, size_t, size_t, mbstate_t * __restrict);
79 static size_t (*Cached__wcsnrtombs)(char * __restrict,
80 const wchar_t ** __restrict, size_t, size_t,
81 mbstate_t * __restrict);
84 * The "C" and "POSIX" locale are always here.
86 if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) {
87 (void) _none_init(&_DefaultRuneLocale);
92 * If the locale name is the same as our cache, use the cache.
94 if (CachedRuneLocale != NULL &&
95 strcmp(encoding, ctype_encoding) == 0) {
96 _CurrentRuneLocale = CachedRuneLocale;
97 __mb_cur_max = Cached__mb_cur_max;
98 __mbrtowc = Cached__mbrtowc;
99 __mbsinit = Cached__mbsinit;
100 __mbsnrtowcs = Cached__mbsnrtowcs;
101 __wcrtomb = Cached__wcrtomb;
102 __wcsnrtombs = Cached__wcsnrtombs;
107 * Slurp the locale file into the cache.
110 /* Range checking not needed, encoding length already checked before */
111 (void) strcpy(name, _PathLocale);
112 (void) strcat(name, "/");
113 (void) strcat(name, encoding);
114 (void) strcat(name, "/LC_CTYPE");
116 if ((fp = fopen(name, "r")) == NULL)
117 return (errno == 0 ? ENOENT : errno);
119 if ((rl = _Read_RuneMagi(fp)) == NULL) {
120 saverr = (errno == 0 ? EFTYPE : errno);
126 old__mbrtowc = __mbrtowc;
127 old__mbsinit = __mbsinit;
128 old__mbsnrtowcs = __mbsnrtowcs;
129 old__wcrtomb = __wcrtomb;
130 old__wcsnrtombs = __wcsnrtombs;
134 __mbsnrtowcs = __mbsnrtowcs_std;
136 __wcsnrtombs = __wcsnrtombs_std;
138 rl->__sputrune = NULL;
139 rl->__sgetrune = NULL;
140 if (strcmp(rl->__encoding, "NONE") == 0)
141 ret = _none_init(rl);
142 else if (strcmp(rl->__encoding, "UTF-8") == 0)
143 ret = _UTF8_init(rl);
144 else if (strcmp(rl->__encoding, "EUC") == 0)
146 else if (strcmp(rl->__encoding, "GB18030") == 0)
147 ret = _GB18030_init(rl);
148 else if (strcmp(rl->__encoding, "GB2312") == 0)
149 ret = _GB2312_init(rl);
150 else if (strcmp(rl->__encoding, "GBK") == 0)
152 else if (strcmp(rl->__encoding, "BIG5") == 0)
153 ret = _BIG5_init(rl);
154 else if (strcmp(rl->__encoding, "MSKanji") == 0)
155 ret = _MSKanji_init(rl);
160 if (CachedRuneLocale != NULL) {
162 if (strcmp(CachedRuneLocale->__encoding, "EUC") == 0)
163 free(CachedRuneLocale->__variable);
164 free(CachedRuneLocale);
166 CachedRuneLocale = _CurrentRuneLocale;
167 Cached__mb_cur_max = __mb_cur_max;
168 Cached__mbrtowc = __mbrtowc;
169 Cached__mbsinit = __mbsinit;
170 Cached__mbsnrtowcs = __mbsnrtowcs;
171 Cached__wcrtomb = __wcrtomb;
172 Cached__wcsnrtombs = __wcsnrtombs;
173 (void)strcpy(ctype_encoding, encoding);
175 __mbrtowc = old__mbrtowc;
176 __mbsinit = old__mbsinit;
177 __mbsnrtowcs = old__mbsnrtowcs;
178 __wcrtomb = old__wcrtomb;
179 __wcsnrtombs = old__wcsnrtombs;
187 __wrap_setrunelocale(const char *locale)
189 int ret = __setrunelocale(locale);
195 return (_LDP_LOADED);