2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 static gboolean prefs_is_readonly (const gchar *path);
34 *\brief Open preferences file for reading
36 *\param path Filename with path of preferences file to read
38 *\return PrefFile * preferences file struct
40 PrefFile *prefs_read_open(const gchar *path)
45 g_return_val_if_fail(path != NULL, NULL);
47 if ((fp = g_fopen(path, "rb")) == NULL) {
48 FILE_OP_ERROR(path, "fopen");
52 pfile = g_new(PrefFile, 1);
54 pfile->orig_fp = NULL;
55 pfile->path = g_strdup(path);
56 pfile->writing = FALSE;
62 *\brief Open preferences file for writing
63 * Prefs are written to a temp file: Call prefs_write_close()
64 * to rename this to the final filename
66 *\param path Filename with path of preferences file to write
68 *\return PrefFile * preferences file struct
70 PrefFile *prefs_write_open(const gchar *path)
76 g_return_val_if_fail(path != NULL, NULL);
78 if (prefs_is_readonly(path)) {
79 g_warning("no permission - %s\n", path);
83 tmppath = g_strconcat(path, ".tmp", NULL);
84 if ((fp = g_fopen(tmppath, "wb")) == NULL) {
85 FILE_OP_ERROR(tmppath, "fopen");
90 if (change_file_mode_rw(fp, tmppath) < 0)
91 FILE_OP_ERROR(tmppath, "chmod");
95 pfile = g_new(PrefFile, 1);
97 pfile->orig_fp = NULL;
98 pfile->path = g_strdup(path);
99 pfile->writing = TRUE;
105 *\brief Close and free preferences file
106 * Creates final file from temp, creates backup
108 *\param pfile Preferences file struct
110 *\return 0 on success, -1 on failure
112 #define PREFS_FILE_FREE() \
119 gint prefs_file_close(PrefFile *pfile)
124 gchar *bakpath = NULL;
127 g_return_val_if_fail(pfile != NULL, -1);
130 orig_fp = pfile->orig_fp;
133 if (!pfile->writing) {
141 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
144 if (fputs(buf, fp) == EOF) {
145 g_warning("failed to write configuration to file\n");
146 prefs_file_close_revert(pfile);
154 while (fgets(buf, sizeof(buf), orig_fp) != NULL)
155 if (fputs(buf, fp) == EOF) {
156 g_warning("failed to write configuration to file\n");
157 prefs_file_close_revert(pfile);
164 tmppath = g_strconcat(path, ".tmp", NULL);
165 if (fclose(fp) == EOF) {
166 FILE_OP_ERROR(tmppath, "fclose");
167 claws_unlink(tmppath);
173 if (is_file_exist(path)) {
174 bakpath = g_strconcat(path, ".bak", NULL);
176 claws_unlink(bakpath);
178 if (rename(path, bakpath) < 0) {
179 FILE_OP_ERROR(path, "rename");
180 claws_unlink(tmppath);
191 if (rename(tmppath, path) < 0) {
192 FILE_OP_ERROR(tmppath, "rename");
193 claws_unlink(tmppath);
206 #undef PREFS_FILE_FREE
209 *\brief Close and free preferences file, delete temp file
211 *\param pfile Preferences file struct
213 gint prefs_file_close_revert(PrefFile *pfile)
215 gchar *tmppath = NULL;
217 g_return_val_if_fail(pfile != NULL, -1);
220 fclose(pfile->orig_fp);
222 tmppath = g_strconcat(pfile->path, ".tmp", NULL);
224 if (pfile->writing) {
225 if (claws_unlink(tmppath) < 0) FILE_OP_ERROR(tmppath, "unlink");
235 *\brief Check if "path" is a file and readonly
237 static gboolean prefs_is_readonly(const gchar * path)
242 return (access(path, W_OK) != 0 && access(path, F_OK) == 0);
246 *\brief Check if "rcfile" is in rcdir, a file and readonly
248 gboolean prefs_rc_is_readonly(const gchar * rcfile)
256 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
257 result = prefs_is_readonly(rcpath);
264 *\brief Selects current section in preferences file
265 * Creates section if file is written
267 *\param pfile Preferences file struct
269 *\return 0 on success, -1 on failure
271 gint prefs_set_block_label(PrefFile *pfile, const gchar *label)
276 block_label = g_strdup_printf("[%s]", label);
277 if (!pfile->writing) {
278 while (fgets(buf, sizeof(buf), pfile->fp) != NULL) {
281 val = strncmp(buf, block_label, strlen(block_label));
283 debug_print("Found %s\n", block_label);
288 if ((pfile->orig_fp = g_fopen(pfile->path, "rb")) != NULL) {
289 gboolean block_matched = FALSE;
291 while (fgets(buf, sizeof(buf), pfile->orig_fp) != NULL) {
294 val = strncmp(buf, block_label, strlen(block_label));
296 debug_print("Found %s\n", block_label);
297 block_matched = TRUE;
300 if (fputs(buf, pfile->fp) == EOF) {
301 g_warning("failed to write configuration to file\n");
302 prefs_file_close_revert(pfile);
310 if (!block_matched) {
311 fclose(pfile->orig_fp);
312 pfile->orig_fp = NULL;
315 if (fputs(block_label, pfile->fp) == EOF ||
316 fputc('\n', pfile->fp) == EOF) {
317 g_warning("failed to write configuration to file\n");
318 prefs_file_close_revert(pfile);