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247 lines
5.1 KiB
C
247 lines
5.1 KiB
C
/*
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Unix SMB/CIFS implementation.
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tdb based replacement for gettext
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Copyright (C) Andrew Tridgell 2001
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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static TDB_CONTEXT *tdb;
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/* the currently selected language */
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static char *current_lang;
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/* load a msg file into the tdb */
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static bool load_msg(const char *msg_file)
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{
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char **lines;
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int num_lines, i;
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char *msgid, *msgstr;
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TDB_DATA data;
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lines = file_lines_load(msg_file, &num_lines, 0, NULL);
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if (!lines) {
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return False;
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}
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if (tdb_lockall(tdb) != 0) {
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TALLOC_FREE(lines);
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return False;
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}
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/* wipe the db */
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tdb_wipe_all(tdb);
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msgid = NULL;
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for (i=0;i<num_lines;i++) {
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if (strncmp(lines[i], "msgid \"", 7) == 0) {
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msgid = lines[i] + 7;
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}
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if (msgid && strncmp(lines[i], "msgstr \"", 8) == 0) {
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msgstr = lines[i] + 8;
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trim_char(msgid, '\0', '\"');
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trim_char(msgstr, '\0', '\"');
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if (*msgstr == 0) {
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msgstr = msgid;
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}
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all_string_sub(msgid, "\\n", "\n", 0);
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all_string_sub(msgstr, "\\n", "\n", 0);
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data = string_term_tdb_data(msgstr);
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tdb_store_bystring(tdb, msgid, data, 0);
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msgid = NULL;
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}
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}
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TALLOC_FREE(lines);
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tdb_unlockall(tdb);
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return True;
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}
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/* work out what language to use from locale variables */
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static const char *get_lang(void)
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{
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const char *vars[] = {"LANGUAGE", "LC_ALL", "LC_LANG", "LANG", NULL};
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int i;
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char *p;
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for (i=0; vars[i]; i++) {
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if ((p = getenv(vars[i]))) {
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return p;
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}
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}
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return NULL;
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}
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/* initialise the message translation subsystem. If the "lang" argument
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is NULL then get the language from the normal environment variables */
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bool lang_tdb_init(const char *lang)
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{
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char *path = NULL;
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char *msg_path = NULL;
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struct stat st;
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static int initialised;
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time_t loadtime;
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bool result = False;
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/* we only want to init once per process, unless given
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an override */
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if (initialised && !lang)
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return True;
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if (initialised) {
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/* we are re-initialising, free up any old init */
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if (tdb) {
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tdb_close(tdb);
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tdb = NULL;
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}
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SAFE_FREE(current_lang);
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}
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initialised = 1;
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if (!lang) {
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/* no lang given, use environment */
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lang = get_lang();
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}
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/* if no lang then we don't translate */
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if (!lang)
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return True;
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if (asprintf(&msg_path, "%s.msg",
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data_path((const char *)lang)) == -1) {
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DEBUG(0, ("asprintf failed\n"));
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goto done;
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}
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if (stat(msg_path, &st) != 0) {
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/* the msg file isn't available */
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DEBUG(10, ("lang_tdb_init: %s: %s\n", msg_path,
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strerror(errno)));
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goto done;
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}
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if (asprintf(&path, "%s%s.tdb", lock_path("lang_"), lang) == -1) {
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DEBUG(0, ("asprintf failed\n"));
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goto done;
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}
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DEBUG(10, ("lang_tdb_init: loading %s\n", path));
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tdb = tdb_open_log(path, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644);
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if (!tdb) {
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tdb = tdb_open_log(path, 0, TDB_DEFAULT, O_RDONLY, 0);
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if (!tdb) {
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DEBUG(10, ("lang_tdb_init: %s: %s\n", path,
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strerror(errno)));
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goto done;
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}
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current_lang = SMB_STRDUP(lang);
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result = True;
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goto done;
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}
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loadtime = tdb_fetch_int32(tdb, "/LOADTIME/");
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if (loadtime == -1 || loadtime < st.st_mtime) {
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load_msg(msg_path);
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tdb_store_int32(tdb, "/LOADTIME/", (int)time(NULL));
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}
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current_lang = SMB_STRDUP(lang);
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result = True;
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done:
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SAFE_FREE(msg_path);
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SAFE_FREE(path);
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return result;
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}
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/* translate a msgid to a message string in the current language
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returns a string that must be freed by calling lang_msg_free()
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*/
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const char *lang_msg(const char *msgid)
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{
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TDB_DATA data;
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const char *p;
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char *q, *msgid_quoted;
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int count;
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lang_tdb_init(NULL);
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if (!tdb) return msgid;
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/* Due to the way quotes in msgids are escaped in the msg file we
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must replace " with \" before doing a lookup in the tdb. */
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count = 0;
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for(p = msgid; *p; p++) {
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if (*p == '\"')
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count++;
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}
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if (!(msgid_quoted = (char *)SMB_MALLOC(strlen(msgid) + count + 1)))
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return msgid;
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/* string_sub() is unsuitable here as it replaces some punctuation
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chars with underscores. */
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for(p = msgid, q = msgid_quoted; *p; p++) {
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if (*p == '\"') {
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*q = '\\';
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q++;
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}
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*q = *p;
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q++;
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}
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*q = 0;
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data = tdb_fetch_bystring(tdb, msgid_quoted);
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free(msgid_quoted);
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/* if the message isn't found then we still need to return a pointer
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that can be freed. Pity. */
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if (!data.dptr)
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return SMB_STRDUP(msgid);
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return (const char *)data.dptr;
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}
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/* free up a string from lang_msg() */
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void lang_msg_free(const char *msgstr)
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{
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if (!tdb) return;
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free((void *)msgstr);
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}
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/*
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return the current language - needed for language file mappings
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*/
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char *lang_tdb_current(void)
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{
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return current_lang;
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}
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