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8f2ece69 | 1 | /* Handle list of needed message catalogs |
d4697bc9 | 2 | Copyright (C) 1995-2014 Free Software Foundation, Inc. |
f84ad0b1 | 3 | Written by Ulrich Drepper <drepper@gnu.org>, 1995. |
92f3773b | 4 | |
6d248857 WN |
5 | This program is free software: you can redistribute it and/or modify |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2.1 of the License, or | |
8 | (at your option) any later version. | |
0393dfd6 | 9 | |
6d248857 | 10 | This program is distributed in the hope that it will be useful, |
e4cf5070 | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
6d248857 WN |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU Lesser General Public License for more details. | |
24906b43 | 14 | |
6d248857 WN |
15 | You should have received a copy of the GNU Lesser General Public License |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
24906b43 RM |
17 | |
18 | #ifdef HAVE_CONFIG_H | |
19 | # include <config.h> | |
20 | #endif | |
21 | ||
24906b43 RM |
22 | #include <stdio.h> |
23 | #include <sys/types.h> | |
0555fcce UD |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
24906b43 RM |
26 | |
27 | #if defined HAVE_UNISTD_H || defined _LIBC | |
28 | # include <unistd.h> | |
29 | #endif | |
30 | ||
24906b43 RM |
31 | #include "gettextP.h" |
32 | #ifdef _LIBC | |
33 | # include <libintl.h> | |
34 | #else | |
4a4d50f3 | 35 | # include "libgnuintl.h" |
24906b43 RM |
36 | #endif |
37 | ||
6d248857 WN |
38 | /* Handle multi-threaded applications. */ |
39 | #ifdef _LIBC | |
40 | # include <bits/libc-lock.h> | |
41 | # define gl_rwlock_define_initialized __libc_rwlock_define_initialized | |
42 | # define gl_rwlock_rdlock __libc_rwlock_rdlock | |
43 | # define gl_rwlock_wrlock __libc_rwlock_wrlock | |
44 | # define gl_rwlock_unlock __libc_rwlock_unlock | |
45 | #else | |
46 | # include "lock.h" | |
47 | #endif | |
48 | ||
24906b43 | 49 | /* @@ end of prolog @@ */ |
24906b43 | 50 | /* List of already loaded domains. */ |
7a12c6bb | 51 | static struct loaded_l10nfile *_nl_loaded_domains; |
857fa1b8 | 52 | |
24906b43 RM |
53 | |
54 | /* Return a data structure describing the message catalog described by | |
55 | the DOMAINNAME and CATEGORY parameters with respect to the currently | |
56 | established bindings. */ | |
7a12c6bb | 57 | struct loaded_l10nfile * |
d0fc4041 | 58 | internal_function |
6d248857 WN |
59 | _nl_find_domain (const char *dirname, char *locale, |
60 | const char *domainname, struct binding *domainbinding) | |
24906b43 | 61 | { |
7a12c6bb | 62 | struct loaded_l10nfile *retval; |
24906b43 | 63 | const char *language; |
7a12c6bb RM |
64 | const char *modifier; |
65 | const char *territory; | |
66 | const char *codeset; | |
67 | const char *normalized_codeset; | |
7a12c6bb | 68 | const char *alias_value; |
24906b43 RM |
69 | int mask; |
70 | ||
7a12c6bb | 71 | /* LOCALE can consist of up to four recognized parts for the XPG syntax: |
24906b43 | 72 | |
6d248857 | 73 | language[_territory][.codeset][@modifier] |
24906b43 | 74 | |
f41c8091 UD |
75 | Beside the first part all of them are allowed to be missing. If |
76 | the full specified locale is not found, the less specific one are | |
77 | looked for. The various parts will be stripped off according to | |
24906b43 | 78 | the following order: |
e155c801 UD |
79 | (1) codeset |
80 | (2) normalized codeset | |
81 | (3) territory | |
82 | (4) modifier | |
24906b43 RM |
83 | */ |
84 | ||
f6b90f42 | 85 | /* We need to protect modifying the _NL_LOADED_DOMAINS data. */ |
6d248857 WN |
86 | gl_rwlock_define_initialized (static, lock); |
87 | gl_rwlock_rdlock (lock); | |
f6b90f42 | 88 | |
24906b43 RM |
89 | /* If we have already tested for this locale entry there has to |
90 | be one data set in the list of loaded domains. */ | |
7a12c6bb RM |
91 | retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, |
92 | strlen (dirname) + 1, 0, locale, NULL, NULL, | |
e155c801 | 93 | NULL, NULL, domainname, 0); |
6d248857 WN |
94 | |
95 | gl_rwlock_unlock (lock); | |
f6b90f42 | 96 | |
24906b43 RM |
97 | if (retval != NULL) |
98 | { | |
99 | /* We know something about this locale. */ | |
100 | int cnt; | |
101 | ||
ce7265c7 | 102 | if (retval->decided <= 0) |
c44a663d | 103 | _nl_load_domain (retval, domainbinding); |
24906b43 RM |
104 | |
105 | if (retval->data != NULL) | |
106 | return retval; | |
107 | ||
75914335 | 108 | for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) |
24906b43 | 109 | { |
ce7265c7 | 110 | if (retval->successor[cnt]->decided <= 0) |
c44a663d | 111 | _nl_load_domain (retval->successor[cnt], domainbinding); |
24906b43 RM |
112 | |
113 | if (retval->successor[cnt]->data != NULL) | |
114 | break; | |
115 | } | |
f6b90f42 | 116 | |
0292b0dd | 117 | return retval; |
24906b43 RM |
118 | /* NOTREACHED */ |
119 | } | |
120 | ||
121 | /* See whether the locale value is an alias. If yes its value | |
122 | *overwrites* the alias name. No test for the original value is | |
123 | done. */ | |
124 | alias_value = _nl_expand_alias (locale); | |
125 | if (alias_value != NULL) | |
6d248857 WN |
126 | { |
127 | #if defined _LIBC || defined HAVE_STRDUP | |
128 | locale = strdup (alias_value); | |
129 | if (locale == NULL) | |
130 | return NULL; | |
131 | #else | |
132 | size_t len = strlen (alias_value) + 1; | |
133 | locale = (char *) malloc (len); | |
134 | if (locale == NULL) | |
135 | return NULL; | |
136 | ||
137 | memcpy (locale, alias_value, len); | |
138 | #endif | |
139 | } | |
24906b43 RM |
140 | |
141 | /* Now we determine the single parts of the locale name. First | |
6d248857 | 142 | look for the language. Termination symbols are `_', '.', and `@'. */ |
7a12c6bb | 143 | mask = _nl_explode_name (locale, &language, &modifier, &territory, |
e155c801 | 144 | &codeset, &normalized_codeset); |
1c298d08 UD |
145 | if (mask == -1) |
146 | /* This means we are out of core. */ | |
147 | return NULL; | |
24906b43 | 148 | |
f6b90f42 | 149 | /* We need to protect modifying the _NL_LOADED_DOMAINS data. */ |
6d248857 | 150 | gl_rwlock_wrlock (lock); |
f6b90f42 | 151 | |
24906b43 | 152 | /* Create all possible locale entries which might be interested in |
6d52618b | 153 | generalization. */ |
7a12c6bb RM |
154 | retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, |
155 | strlen (dirname) + 1, mask, language, territory, | |
e155c801 UD |
156 | codeset, normalized_codeset, modifier, |
157 | domainname, 1); | |
6d248857 WN |
158 | |
159 | gl_rwlock_unlock (lock); | |
f6b90f42 | 160 | |
24906b43 RM |
161 | if (retval == NULL) |
162 | /* This means we are out of core. */ | |
ce31a3b1 | 163 | goto out; |
24906b43 | 164 | |
ce7265c7 | 165 | if (retval->decided <= 0) |
c44a663d | 166 | _nl_load_domain (retval, domainbinding); |
24906b43 RM |
167 | if (retval->data == NULL) |
168 | { | |
169 | int cnt; | |
170 | for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) | |
171 | { | |
ce7265c7 | 172 | if (retval->successor[cnt]->decided <= 0) |
c44a663d | 173 | _nl_load_domain (retval->successor[cnt], domainbinding); |
24906b43 RM |
174 | if (retval->successor[cnt]->data != NULL) |
175 | break; | |
24906b43 | 176 | } |
24906b43 RM |
177 | } |
178 | ||
6d248857 WN |
179 | /* The room for an alias was dynamically allocated. Free it now. */ |
180 | if (alias_value != NULL) | |
181 | free (locale); | |
182 | ||
ce31a3b1 | 183 | out: |
a1648746 UD |
184 | /* The space for normalized_codeset is dynamically allocated. Free it. */ |
185 | if (mask & XPG_NORM_CODESET) | |
a7123f0e | 186 | free ((void *) normalized_codeset); |
a1648746 | 187 | |
24906b43 RM |
188 | return retval; |
189 | } | |
a5a0310d UD |
190 | |
191 | ||
192 | #ifdef _LIBC | |
9e365fe7 UD |
193 | /* This is called from iconv/gconv_db.c's free_mem, as locales must |
194 | be freed before freeing gconv steps arrays. */ | |
195 | void __libc_freeres_fn_section | |
60d2f8f3 | 196 | _nl_finddomain_subfreeres (void) |
a5a0310d UD |
197 | { |
198 | struct loaded_l10nfile *runp = _nl_loaded_domains; | |
199 | ||
200 | while (runp != NULL) | |
201 | { | |
202 | struct loaded_l10nfile *here = runp; | |
203 | if (runp->data != NULL) | |
204 | _nl_unload_domain ((struct loaded_domain *) runp->data); | |
205 | runp = runp->next; | |
f84ad0b1 | 206 | free ((char *) here->filename); |
a5a0310d UD |
207 | free (here); |
208 | } | |
209 | } | |
a5a0310d | 210 | #endif |