1 /* $NetBSD: finddomain.c,v 1.1.1.1 2016/01/14 00:11:28 christos Exp $ */ 2 3 /* Handle list of needed message catalogs 4 Copyright (C) 1995-1999, 2000-2001, 2003 Free Software Foundation, Inc. 5 Written by Ulrich Drepper <drepper@gnu.org>, 1995. 6 7 This program is free software; you can redistribute it and/or modify it 8 under the terms of the GNU Library General Public License as published 9 by the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 This program 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 15 Library General Public License for more details. 16 17 You should have received a copy of the GNU Library General Public 18 License along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 20 USA. */ 21 22 #ifdef HAVE_CONFIG_H 23 # include <config.h> 24 #endif 25 26 #include <stdio.h> 27 #include <sys/types.h> 28 #include <stdlib.h> 29 #include <string.h> 30 31 #if defined HAVE_UNISTD_H || defined _LIBC 32 # include <unistd.h> 33 #endif 34 35 #include "gettextP.h" 36 #ifdef _LIBC 37 # include <libintl.h> 38 #else 39 # include "libgnuintl.h" 40 #endif 41 42 /* @@ end of prolog @@ */ 43 /* List of already loaded domains. */ 44 static struct loaded_l10nfile *_nl_loaded_domains; 45 46 47 /* Return a data structure describing the message catalog described by 48 the DOMAINNAME and CATEGORY parameters with respect to the currently 49 established bindings. */ 50 struct loaded_l10nfile * 51 internal_function 52 _nl_find_domain (const char *dirname, char *locale, 53 const char *domainname, struct binding *domainbinding) 54 { 55 struct loaded_l10nfile *retval; 56 const char *language; 57 const char *modifier; 58 const char *territory; 59 const char *codeset; 60 const char *normalized_codeset; 61 const char *special; 62 const char *sponsor; 63 const char *revision; 64 const char *alias_value; 65 int mask; 66 67 /* LOCALE can consist of up to four recognized parts for the XPG syntax: 68 69 language[_territory[.codeset]][@modifier] 70 71 and six parts for the CEN syntax: 72 73 language[_territory][+audience][+special][,[sponsor][_revision]] 74 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 78 the following order: 79 (1) revision 80 (2) sponsor 81 (3) special 82 (4) codeset 83 (5) normalized codeset 84 (6) territory 85 (7) audience/modifier 86 */ 87 88 /* If we have already tested for this locale entry there has to 89 be one data set in the list of loaded domains. */ 90 retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, 91 strlen (dirname) + 1, 0, locale, NULL, NULL, 92 NULL, NULL, NULL, NULL, NULL, domainname, 0); 93 if (retval != NULL) 94 { 95 /* We know something about this locale. */ 96 int cnt; 97 98 if (retval->decided == 0) 99 _nl_load_domain (retval, domainbinding); 100 101 if (retval->data != NULL) 102 return retval; 103 104 for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) 105 { 106 if (retval->successor[cnt]->decided == 0) 107 _nl_load_domain (retval->successor[cnt], domainbinding); 108 109 if (retval->successor[cnt]->data != NULL) 110 break; 111 } 112 return cnt >= 0 ? retval : NULL; 113 /* NOTREACHED */ 114 } 115 116 /* See whether the locale value is an alias. If yes its value 117 *overwrites* the alias name. No test for the original value is 118 done. */ 119 alias_value = _nl_expand_alias (locale); 120 if (alias_value != NULL) 121 { 122 #if defined _LIBC || defined HAVE_STRDUP 123 locale = strdup (alias_value); 124 if (locale == NULL) 125 return NULL; 126 #else 127 size_t len = strlen (alias_value) + 1; 128 locale = (char *) malloc (len); 129 if (locale == NULL) 130 return NULL; 131 132 memcpy (locale, alias_value, len); 133 #endif 134 } 135 136 /* Now we determine the single parts of the locale name. First 137 look for the language. Termination symbols are `_' and `@' if 138 we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */ 139 mask = _nl_explode_name (locale, &language, &modifier, &territory, 140 &codeset, &normalized_codeset, &special, 141 &sponsor, &revision); 142 143 /* Create all possible locale entries which might be interested in 144 generalization. */ 145 retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname, 146 strlen (dirname) + 1, mask, language, territory, 147 codeset, normalized_codeset, modifier, special, 148 sponsor, revision, domainname, 1); 149 if (retval == NULL) 150 /* This means we are out of core. */ 151 return NULL; 152 153 if (retval->decided == 0) 154 _nl_load_domain (retval, domainbinding); 155 if (retval->data == NULL) 156 { 157 int cnt; 158 for (cnt = 0; retval->successor[cnt] != NULL; ++cnt) 159 { 160 if (retval->successor[cnt]->decided == 0) 161 _nl_load_domain (retval->successor[cnt], domainbinding); 162 if (retval->successor[cnt]->data != NULL) 163 break; 164 } 165 } 166 167 /* The room for an alias was dynamically allocated. Free it now. */ 168 if (alias_value != NULL) 169 free (locale); 170 171 /* The space for normalized_codeset is dynamically allocated. Free it. */ 172 if (mask & XPG_NORM_CODESET) 173 free ((void *) normalized_codeset); 174 175 return retval; 176 } 177 178 179 #ifdef _LIBC 180 libc_freeres_fn (free_mem) 181 { 182 struct loaded_l10nfile *runp = _nl_loaded_domains; 183 184 while (runp != NULL) 185 { 186 struct loaded_l10nfile *here = runp; 187 if (runp->data != NULL) 188 _nl_unload_domain ((struct loaded_domain *) runp->data); 189 runp = runp->next; 190 free ((char *) here->filename); 191 free (here); 192 } 193 } 194 #endif 195