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8f2ece69 | 1 | /* Handle list of needed message catalogs |
1c298d08 | 2 | Copyright (C) 1995-1999, 2000, 2001, 2002, 2004, 2006, 2007 |
9e365fe7 | 3 | Free Software Foundation, Inc. |
41bdb6e2 | 4 | This file is part of the GNU C Library. |
f84ad0b1 | 5 | Written by Ulrich Drepper <drepper@gnu.org>, 1995. |
92f3773b | 6 | |
e4cf5070 | 7 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
8 | modify it under the terms of the GNU Lesser General Public |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
0393dfd6 | 11 | |
e4cf5070 UD |
12 | The GNU C Library is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 15 | Lesser General Public License for more details. |
24906b43 | 16 | |
41bdb6e2 AJ |
17 | You should have received a copy of the GNU Lesser General Public |
18 | License along with the GNU C Library; if not, write to the Free | |
19 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
20 | 02111-1307 USA. */ | |
24906b43 RM |
21 | |
22 | #ifdef HAVE_CONFIG_H | |
23 | # include <config.h> | |
24 | #endif | |
25 | ||
24906b43 RM |
26 | #include <stdio.h> |
27 | #include <sys/types.h> | |
0555fcce UD |
28 | #include <stdlib.h> |
29 | #include <string.h> | |
24906b43 RM |
30 | |
31 | #if defined HAVE_UNISTD_H || defined _LIBC | |
32 | # include <unistd.h> | |
33 | #endif | |
34 | ||
24906b43 RM |
35 | #include "gettextP.h" |
36 | #ifdef _LIBC | |
37 | # include <libintl.h> | |
f6b90f42 | 38 | # include <bits/libc-lock.h> |
24906b43 | 39 | #else |
4a4d50f3 | 40 | # include "libgnuintl.h" |
24906b43 RM |
41 | #endif |
42 | ||
43 | /* @@ end of prolog @@ */ | |
24906b43 | 44 | /* List of already loaded domains. */ |
7a12c6bb | 45 | static struct loaded_l10nfile *_nl_loaded_domains; |
857fa1b8 | 46 | |
24906b43 RM |
47 | |
48 | /* Return a data structure describing the message catalog described by | |
49 | the DOMAINNAME and CATEGORY parameters with respect to the currently | |
50 | established bindings. */ | |
7a12c6bb | 51 | struct loaded_l10nfile * |
d0fc4041 | 52 | internal_function |
17c389fc | 53 | _nl_find_domain (dirname, locale, domainname, domainbinding) |
24906b43 RM |
54 | const char *dirname; |
55 | char *locale; | |
56 | const char *domainname; | |
17c389fc | 57 | struct binding *domainbinding; |
24906b43 | 58 | { |
7a12c6bb | 59 | struct loaded_l10nfile *retval; |
24906b43 | 60 | const char *language; |
7a12c6bb RM |
61 | const char *modifier; |
62 | const char *territory; | |
63 | const char *codeset; | |
64 | const char *normalized_codeset; | |
7a12c6bb | 65 | const char *alias_value; |
24906b43 RM |
66 | int mask; |
67 | ||
7a12c6bb | 68 | /* LOCALE can consist of up to four recognized parts for the XPG syntax: |
24906b43 RM |
69 | |
70 | language[_territory[.codeset]][@modifier] | |
71 | ||
f41c8091 UD |
72 | Beside the first part all of them are allowed to be missing. If |
73 | the full specified locale is not found, the less specific one are | |
74 | looked for. The various parts will be stripped off according to | |
24906b43 | 75 | the following order: |
e155c801 UD |
76 | (1) codeset |
77 | (2) normalized codeset | |
78 | (3) territory | |
79 | (4) modifier | |
24906b43 RM |
80 | */ |
81 | ||
f6b90f42 | 82 | /* We need to protect modifying the _NL_LOADED_DOMAINS data. */ |
ce7265c7 UD |
83 | __libc_rwlock_define_initialized (static, lock); |
84 | __libc_rwlock_rdlock (lock); | |
f6b90f42 | 85 | |
24906b43 RM |
86 | /* If we have already tested for this locale entry there has to |
87 | be one data set in the list of loaded domains. */ | |
7a12c6bb RM |
88 | retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, |
89 | strlen (dirname) + 1, 0, locale, NULL, NULL, | |
e155c801 | 90 | NULL, NULL, domainname, 0); |
ce7265c7 | 91 | __libc_rwlock_unlock (lock); |
f6b90f42 | 92 | |
24906b43 RM |
93 | if (retval != NULL) |
94 | { | |
95 | /* We know something about this locale. */ | |
96 | int cnt; | |
97 | ||
ce7265c7 | 98 | if (retval->decided <= 0) |
c44a663d | 99 | _nl_load_domain (retval, domainbinding); |
24906b43 RM |
100 | |
101 | if (retval->data != NULL) | |
102 | return retval; | |
103 | ||
75914335 | 104 | for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) |
24906b43 | 105 | { |
ce7265c7 | 106 | if (retval->successor[cnt]->decided <= 0) |
c44a663d | 107 | _nl_load_domain (retval->successor[cnt], domainbinding); |
24906b43 RM |
108 | |
109 | if (retval->successor[cnt]->data != NULL) | |
110 | break; | |
111 | } | |
f6b90f42 | 112 | |
0292b0dd | 113 | return retval; |
24906b43 RM |
114 | /* NOTREACHED */ |
115 | } | |
116 | ||
117 | /* See whether the locale value is an alias. If yes its value | |
118 | *overwrites* the alias name. No test for the original value is | |
119 | done. */ | |
120 | alias_value = _nl_expand_alias (locale); | |
121 | if (alias_value != NULL) | |
0292b0dd | 122 | locale = strdupa (alias_value); |
24906b43 RM |
123 | |
124 | /* Now we determine the single parts of the locale name. First | |
125 | look for the language. Termination symbols are `_' and `@' if | |
126 | we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */ | |
7a12c6bb | 127 | mask = _nl_explode_name (locale, &language, &modifier, &territory, |
e155c801 | 128 | &codeset, &normalized_codeset); |
1c298d08 UD |
129 | if (mask == -1) |
130 | /* This means we are out of core. */ | |
131 | return NULL; | |
24906b43 | 132 | |
f6b90f42 | 133 | /* We need to protect modifying the _NL_LOADED_DOMAINS data. */ |
ce7265c7 | 134 | __libc_rwlock_wrlock (lock); |
f6b90f42 | 135 | |
24906b43 | 136 | /* Create all possible locale entries which might be interested in |
6d52618b | 137 | generalization. */ |
7a12c6bb RM |
138 | retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, |
139 | strlen (dirname) + 1, mask, language, territory, | |
e155c801 UD |
140 | codeset, normalized_codeset, modifier, |
141 | domainname, 1); | |
ce7265c7 | 142 | __libc_rwlock_unlock (lock); |
f6b90f42 | 143 | |
24906b43 RM |
144 | if (retval == NULL) |
145 | /* This means we are out of core. */ | |
ce31a3b1 | 146 | goto out; |
24906b43 | 147 | |
ce7265c7 | 148 | if (retval->decided <= 0) |
c44a663d | 149 | _nl_load_domain (retval, domainbinding); |
24906b43 RM |
150 | if (retval->data == NULL) |
151 | { | |
152 | int cnt; | |
153 | for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) | |
154 | { | |
ce7265c7 | 155 | if (retval->successor[cnt]->decided <= 0) |
c44a663d | 156 | _nl_load_domain (retval->successor[cnt], domainbinding); |
24906b43 RM |
157 | if (retval->successor[cnt]->data != NULL) |
158 | break; | |
24906b43 | 159 | } |
24906b43 RM |
160 | } |
161 | ||
ce31a3b1 | 162 | out: |
a1648746 UD |
163 | /* The space for normalized_codeset is dynamically allocated. Free it. */ |
164 | if (mask & XPG_NORM_CODESET) | |
a7123f0e | 165 | free ((void *) normalized_codeset); |
a1648746 | 166 | |
24906b43 RM |
167 | return retval; |
168 | } | |
a5a0310d UD |
169 | |
170 | ||
171 | #ifdef _LIBC | |
9e365fe7 UD |
172 | /* This is called from iconv/gconv_db.c's free_mem, as locales must |
173 | be freed before freeing gconv steps arrays. */ | |
174 | void __libc_freeres_fn_section | |
175 | _nl_finddomain_subfreeres () | |
a5a0310d UD |
176 | { |
177 | struct loaded_l10nfile *runp = _nl_loaded_domains; | |
178 | ||
179 | while (runp != NULL) | |
180 | { | |
181 | struct loaded_l10nfile *here = runp; | |
182 | if (runp->data != NULL) | |
183 | _nl_unload_domain ((struct loaded_domain *) runp->data); | |
184 | runp = runp->next; | |
f84ad0b1 | 185 | free ((char *) here->filename); |
a5a0310d UD |
186 | free (here); |
187 | } | |
188 | } | |
a5a0310d | 189 | #endif |