2 Unix SMB/CIFS implementation.
3 tdb based replacement for gettext
4 Copyright (C) Andrew Tridgell 2001
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "system/time.h"
24 static TDB_CONTEXT *tdb;
26 /* the currently selected language */
27 static char *current_lang;
30 /* load a msg file into the tdb */
31 static BOOL load_msg(const char *msg_file)
38 lines = file_lines_load(msg_file, &num_lines);
44 if (tdb_lockall(tdb) != 0) return False;
47 tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
51 for (i=0;i<num_lines;i++) {
52 if (strncmp(lines[i], "msgid \"", 7) == 0) {
55 if (msgid && strncmp(lines[i], "msgstr \"", 8) == 0) {
56 msgstr = lines[i] + 8;
57 trim_string(msgid, NULL, "\"");
58 trim_string(msgstr, NULL, "\"");
63 key.dsize = strlen(msgid)+1;
65 data.dsize = strlen(msgstr)+1;
66 tdb_store(tdb, key, data, 0);
71 file_lines_free(lines);
78 /* work out what language to use from locale variables */
79 static const char *get_lang(void)
81 const char *vars[] = {"LANGUAGE", "LC_ALL", "LC_LANG", "LANG", NULL};
85 for (i=0; vars[i]; i++) {
86 if ((p = getenv(vars[i]))) {
94 /* initialise the message translation subsystem. If the "lang" argument
95 is NULL then get the language from the normal environment variables */
96 BOOL lang_tdb_init(const char *lang)
99 char *msg_path = NULL;
101 static int initialised;
105 /* we only want to init once per process, unless given
107 if (initialised && !lang) return True;
110 /* we are re-initialising, free up any old init */
115 SAFE_FREE(current_lang);
121 /* no lang given, use environment */
125 /* if no lang then we don't translate */
126 if (!lang) return True;
128 mem_ctx = talloc_init("lang_tdb_init");
132 asprintf(&msg_path, "%s.msg", lib_path(mem_ctx, (const char *)lang));
133 if (stat(msg_path, &st) != 0) {
134 /* the msg file isn't available */
136 talloc_destroy(mem_ctx);
141 asprintf(&path, "%s%s.tdb", lock_path(mem_ctx, "lang_"), lang);
143 tdb = tdb_open(path, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644);
145 tdb = tdb_open(path, 0, TDB_DEFAULT, O_RDONLY, 0);
148 talloc_destroy(mem_ctx);
149 if (!tdb) return False;
150 current_lang = strdup(lang);
155 talloc_destroy(mem_ctx);
157 loadtime = tdb_fetch_int32(tdb, "/LOADTIME/");
159 if (loadtime == -1 || loadtime < st.st_mtime) {
161 tdb_store_int32(tdb, "/LOADTIME/", (int)time(NULL));
165 current_lang = strdup(lang);
170 /* translate a msgid to a message string in the current language
171 returns a string that must be freed by calling lang_msg_free()
173 char *lang_msg(const char *msgid)
179 if (!tdb) return strdup(msgid);
181 key.dptr = strdup(msgid);
182 key.dsize = strlen(msgid)+1;
184 data = tdb_fetch(tdb, key);
188 /* if the message isn't found then we still need to return a pointer
189 that can be freed. Pity. */
191 return strdup(msgid);
197 /* free up a string from lang_msg() */
198 void lang_msg_free(char *msgstr)
205 when the _() translation macro is used there is no obvious place to free
206 the resulting string and there is no easy way to give a static pointer.
207 All we can do is rotate between some static buffers and hope a single d_printf()
208 doesn't have more calls to _() than the number of buffers
210 const char *lang_msg_rotate(const char *msgid)
212 #define NUM_LANG_BUFS 4
214 static pstring bufs[NUM_LANG_BUFS];
217 msgstr = lang_msg(msgid);
218 if (!msgstr) return msgid;
220 pstrcpy(bufs[next], msgstr);
223 next = (next+1) % NUM_LANG_BUFS;
230 return the current language - needed for language file mappings
232 char *lang_tdb_current(void)