Code

conf: extract name and value from the input line in-place
[ncmpc.git] / src / conf.c
1 /* ncmpc (Ncurses MPD Client)
2  * (c) 2004-2017 The Music Player Daemon Project
3  * Project homepage: http://musicpd.org
4  *
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 2 of the License, or
8  * (at your option) any later version.
9  *
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.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
20 #include "conf.h"
21 #include "config.h"
22 #include "defaults.h"
23 #include "i18n.h"
24 #include "command.h"
25 #include "colors.h"
26 #include "screen_list.h"
27 #include "options.h"
29 #include <assert.h>
30 #include <ctype.h>
31 #include <stdio.h>
32 #include <errno.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <glib.h>
36 #include <glib/gstdio.h>
38 #define MAX_LINE_LENGTH 1024
39 #define COMMENT_TOKEN '#'
41 /* configuration field names */
42 #define CONF_ENABLE_COLORS "enable-colors"
43 #define CONF_SCROLL_OFFSET "scroll-offset"
44 #define CONF_AUTO_CENTER "auto-center"
45 #define CONF_WIDE_CURSOR "wide-cursor"
46 #define CONF_KEY_DEFINITION "key"
47 #define CONF_COLOR "color"
48 #define CONF_COLOR_DEFINITION "colordef"
49 #define CONF_LIST_FORMAT "list-format"
50 #define CONF_SEARCH_FORMAT "search-format"
51 #define CONF_STATUS_FORMAT "status-format"
52 #define CONF_XTERM_TITLE_FORMAT "xterm-title-format"
53 #define CONF_LIST_WRAP "wrap-around"
54 #define CONF_FIND_WRAP "find-wrap"
55 #define CONF_FIND_SHOW_LAST "find-show-last"
56 #define CONF_AUDIBLE_BELL "audible-bell"
57 #define CONF_VISIBLE_BELL "visible-bell"
58 #define CONF_BELL_ON_WRAP "bell-on-wrap"
59 #define CONF_STATUS_MESSAGE_TIME "status-message-time"
60 #define CONF_XTERM_TITLE "set-xterm-title"
61 #define CONF_ENABLE_MOUSE "enable-mouse"
62 #define CONF_CROSSFADE_TIME "crossfade-time"
63 #define CONF_SEARCH_MODE "search-mode"
64 #define CONF_HIDE_CURSOR "hide-cursor"
65 #define CONF_SEEK_TIME "seek-time"
66 #define CONF_SCREEN_LIST "screen-list"
67 #define CONF_TIMEDISPLAY_TYPE "timedisplay-type"
68 #define CONF_HOST "host"
69 #define CONF_PORT "port"
70 #define CONF_PASSWORD "password"
71 #define CONF_TIMEOUT "timeout"
72 #define CONF_LYRICS_TIMEOUT "lyrics-timeout"
73 #define CONF_SCROLL "scroll"
74 #define CONF_SCROLL_SEP "scroll-sep"
75 #define CONF_VISIBLE_BITRATE "visible-bitrate"
76 #define CONF_HARDWARE_CURSOR "hardware-cursor"
77 #define CONF_WELCOME_SCREEN_LIST "welcome-screen-list"
78 #define CONF_DISPLAY_TIME "display-time"
79 #define CONF_JUMP_PREFIX_ONLY "jump-prefix-only"
80 #define CONF_LYRICS_AUTOSAVE "lyrics-autosave"
81 #define CONF_LYRICS_SHOW_PLUGIN "lyrics-show-plugin"
82 #define CONF_TEXT_EDITOR "text-editor"
83 #define CONF_TEXT_EDITOR_ASK "text-editor-ask"
84 #define CONF_CHAT_PREFIX "chat-prefix"
85 #define CONF_SECOND_COLUMN "second-column"
87 gcc_const
88 static bool
89 is_space_not_null(char ch)
90 {
91         unsigned char uch = (unsigned char)ch;
92         return uch <= 0x20 && uch > 0;
93 }
95 /**
96  * Returns the first non-space character (or a pointer to the null
97  * terminator).  Similar to g_strchug(), but just moves the pointer
98  * forward without modifying the string contents.
99  */
100 gcc_pure
101 static char *
102 skip_spaces(char *p)
104         while (is_space_not_null(*p))
105                 ++p;
106         return p;
109 static bool
110 str2bool(char *str)
112         return strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 ||
113                 strcasecmp(str, "on") == 0 || strcasecmp(str, "1") == 0;
116 static void
117 print_error(const char *msg, const char *input)
119         fprintf(stderr, "%s: %s ('%s')\n",
120                 /* To translators: prefix for error messages */
121                 _("Error"), msg, input);
124 gcc_const
125 static bool
126 is_word_char(char ch)
128         return g_ascii_isalnum(ch) || ch == '-' || ch == '_';
131 static char *
132 after_unquoted_word(char *p)
134         if (!is_word_char(*p)) {
135                 print_error(_("Word expected"), p);
136                 return NULL;
137         }
139         ++p;
141         while (is_word_char(*p))
142                 ++p;
144         return p;
147 static int
148 parse_key_value(char *str, char **end)
150         if (*str == '\'') {
151                 if (str[1] == '\'' || str[2] != '\'') {
152                         print_error(_("Malformed hotkey definition"), str);
153                         return -1;
154                 }
156                 *end = str + 3;
157                 return str[1];
158         } else {
159                 long value = strtol(str, end, 0);
160                 if (*end == str) {
161                         print_error(_("Malformed hotkey definition"), str);
162                         return -1;
163                 }
165                 return (int)value;
166         }
169 static bool
170 parse_key_definition(char *str)
172         /* get the command name */
173         const size_t len = strlen(str);
174         size_t i = 0;
175         int j = 0;
176         char buf[MAX_LINE_LENGTH];
177         memset(buf, 0, MAX_LINE_LENGTH);
178         while (i < len && str[i] != '=' && !g_ascii_isspace(str[i]))
179                 buf[j++] = str[i++];
181         command_t cmd = get_key_command_from_name(buf);
182         if(cmd == CMD_NONE) {
183                 /* the hotkey configuration contains an unknown
184                    command */
185                 print_error(_("Unknown command"), buf);
186                 return false;
187         }
189         /* skip whitespace */
190         while (i < len && (str[i] == '=' || g_ascii_isspace(str[i])))
191                 i++;
193         /* get the value part */
194         memset(buf, 0, MAX_LINE_LENGTH);
195         g_strlcpy(buf, str+i, MAX_LINE_LENGTH);
196         if (*buf == 0) {
197                 /* the hotkey configuration line is incomplete */
198                 print_error(_("Incomplete hotkey configuration"), str);
199                 return false;
200         }
202         /* parse key values */
203         i = 0;
204         int key = 0;
205         char *p = buf;
207         int keys[MAX_COMMAND_KEYS];
208         memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
209         while (i < MAX_COMMAND_KEYS && *p != 0 &&
210                (key = parse_key_value(p, &p)) >= 0) {
211                 keys[i++] = key;
212                 while (*p==',' || *p==' ' || *p=='\t')
213                         p++;
214         }
216         if (key < 0)
217                 return false;
219         return assign_keys(cmd, keys);
222 static bool
223 parse_timedisplay_type(const char *str)
225         if (strcmp(str, "elapsed") == 0)
226                 return false;
227         else if (strcmp(str, "remaining") == 0)
228                 return true;
229         else {
230                 /* translators: ncmpc supports displaying the
231                    "elapsed" or "remaining" time of a song being
232                    played; in this case, the configuration file
233                    contained an invalid setting */
234                 print_error(_("Bad time display type"), str);
235                 return false;
236         }
239 #ifdef ENABLE_COLORS
240 static char *
241 separate_value(char *p)
243         char *value = strchr(p, '=');
244         if (value == NULL) {
245                 /* an equals sign '=' was expected while parsing a
246                    configuration file line */
247                 fprintf(stderr, "%s\n", _("Missing '='"));
248                 return NULL;
249         }
251         *value++ = 0;
253         g_strchomp(p);
254         return skip_spaces(value);
257 static bool
258 parse_color(char *str)
260         char *value = separate_value(str);
261         if (value == NULL)
262                 return false;
264         return colors_assign(str, value);
267 /**
268  * Returns the first non-whitespace character after the next comma
269  * character, or the end of the string.  This is used to parse comma
270  * separated values.
271  */
272 static char *
273 after_comma(char *p)
275         char *comma = strchr(p, ',');
277         if (comma != NULL) {
278                 *comma++ = 0;
279                 comma = skip_spaces(comma);
280         } else
281                 comma = p + strlen(p);
283         g_strchomp(p);
284         return comma;
287 static bool
288 parse_color_definition(char *str)
290         char *value = separate_value(str);
291         if (value == NULL)
292                 return false;
294         /* get the command name */
295         short color = colors_str2color(str);
296         if (color < 0) {
297                 char buf[MAX_LINE_LENGTH];
298                 print_error(_("Bad color name"), buf);
299                 return false;
300         }
302         /* parse r,g,b values */
304         short rgb[3];
305         for (unsigned i = 0; i < 3; ++i) {
306                 char *next = after_comma(value), *endptr;
307                 if (*value == 0) {
308                         print_error(_("Incomplete color definition"), str);
309                         return false;
310                 }
312                 rgb[i] = strtol(value, &endptr, 0);
313                 if (endptr == value || *endptr != 0) {
314                         print_error(_("Invalid number"), value);
315                         return false;
316                 }
318                 value = next;
319         }
321         if (*value != 0) {
322                 print_error(_("Malformed color definition"), str);
323                 return false;
324         }
326         return colors_define(str, rgb[0], rgb[1], rgb[2]);
328 #endif
330 static char *
331 get_format(char *str)
333         gsize len = strlen(str);
335         if (str && str[0]=='\"' && str[len-1] == '\"') {
336                 str[len - 1] = '\0';
337                 str++;
338         }
340         return g_strdup(str);
343 static char **
344 check_screen_list(char *value)
346         char **tmp = g_strsplit_set(value, " \t,", 100);
347         char **screen = NULL;
348         int i = 0, j = 0;
350         while( tmp && tmp[i] ) {
351                 char *name = g_ascii_strdown(tmp[i], -1);
352                 if (*name != '\0') {
353                         if (screen_lookup_name(name) == NULL) {
354                                 /* an unknown screen name was specified in the
355                                    configuration file */
356                                 print_error(_("Unknown screen name"), name);
357                                 free(name);
358                         } else {
359                                 screen = g_realloc(screen, (j+2)*sizeof(char *));
360                                 screen[j++] = name;
361                                 screen[j] = NULL;
362                         }
363                 }
364                 i++;
365         }
366         g_strfreev(tmp);
367         if( screen == NULL )
368                 return g_strsplit_set(DEFAULT_SCREEN_LIST, " ", 0);
370         return screen;
373 static int
374 get_search_mode(char *value)
376         char * test;
377         const int mode = strtol(value, &test, 10);
378         if (*test == '\0')
379         {
380                 if (0 <= mode && mode <= 4)
381                         return mode;
382                 else
383                 {
384                         print_error(_("Invalid search mode"),value);
385                         return 0;
386                 }
387         }
388         else
389         {
390                 for (int i = 0; value[i] != '\0'; i++)
391                         value[i] = tolower(value[i]);
393                 // TODO: modify screen_search so that its own list of modes can be used
394                 // for comparison instead of specifying them here
395                 if (strcmp(value, "title") == 0)
396                         return 0;
397                 else if (strcmp(value, "artist") == 0)
398                         return 1;
399                 else if (strcmp(value, "album") == 0)
400                         return 2;
401                 else if (strcmp(value, "filename") == 0)
402                         return 3;
403                 else if (strcmp(value, "artist+album") == 0)
404                         return 4;
405                 else
406                 {
407                         print_error(_("Unknown search mode"),value);
408                         return 0;
409                 }
410         }
413 static bool
414 parse_line(char *line)
416         /* get the name part */
417         char *const name = line;
418         char *const name_end = after_unquoted_word(line);
419         if (name_end == NULL)
420                 return false;
422         line = skip_spaces(name_end);
423         if (*line == '=') {
424                 ++line;
425                 line = skip_spaces(line);
426         } else if (line == name_end) {
427                 print_error(_("'=' expected"), name_end);
428                 return false;
429         }
431         *name_end = 0;
433         /* get the value part */
434         char *const value = line;
436         /* key definition */
437         if (!strcasecmp(CONF_KEY_DEFINITION, name))
438                 parse_key_definition(value);
439         /* enable colors */
440         else if(!strcasecmp(CONF_ENABLE_COLORS, name))
441 #ifdef ENABLE_COLORS
442                 options.enable_colors = str2bool(value);
443 #else
444         {}
445 #endif
446         else if (!strcasecmp(CONF_SCROLL_OFFSET, name))
447                 options.scroll_offset = atoi(value);
448         /* auto center */
449         else if (!strcasecmp(CONF_AUTO_CENTER, name))
450                 options.auto_center = str2bool(value);
451         /* color assignment */
452         else if (!strcasecmp(CONF_COLOR, name))
453 #ifdef ENABLE_COLORS
454                 parse_color(value);
455 #else
456         {}
457 #endif
458         /* wide cursor */
459         else if (!strcasecmp(CONF_WIDE_CURSOR, name))
460                 options.wide_cursor = str2bool(value);
461         else if (strcasecmp(name, CONF_HARDWARE_CURSOR) == 0)
462                 options.hardware_cursor = str2bool(value);
463         /* welcome screen list */
464         else if (!strcasecmp(CONF_WELCOME_SCREEN_LIST, name))
465                 options.welcome_screen_list = str2bool(value);
466         /* visible bitrate */
467         else if (!strcasecmp(CONF_VISIBLE_BITRATE, name))
468                 options.visible_bitrate = str2bool(value);
469         /* timer display type */
470         else if (!strcasecmp(CONF_TIMEDISPLAY_TYPE, name))
471                 options.display_remaining_time = parse_timedisplay_type(value);
472                 /* color definition */
473         else if (!strcasecmp(CONF_COLOR_DEFINITION, name))
474 #ifdef ENABLE_COLORS
475                 parse_color_definition(value);
476 #else
477         {}
478 #endif
479         /* list format string */
480         else if (!strcasecmp(CONF_LIST_FORMAT, name)) {
481                 g_free(options.list_format);
482                 options.list_format = get_format(value);
483                 /* search format string */
484         } else if (!strcasecmp(CONF_SEARCH_FORMAT, name)) {
485                 g_free(options.search_format);
486                 options.search_format = get_format(value);
487                 /* status format string */
488         } else if (!strcasecmp(CONF_STATUS_FORMAT, name)) {
489                 g_free(options.status_format);
490                 options.status_format = get_format(value);
491                 /* xterm title format string */
492         } else if (!strcasecmp(CONF_XTERM_TITLE_FORMAT, name)) {
493                 g_free(options.xterm_title_format);
494                 options.xterm_title_format = get_format(value);
495         } else if (!strcasecmp(CONF_LIST_WRAP, name))
496                 options.list_wrap = str2bool(value);
497         else if (!strcasecmp(CONF_FIND_WRAP, name))
498                 options.find_wrap = str2bool(value);
499         else if (!strcasecmp(CONF_FIND_SHOW_LAST,name))
500                 options.find_show_last_pattern = str2bool(value);
501         else if (!strcasecmp(CONF_AUDIBLE_BELL, name))
502                 options.audible_bell = str2bool(value);
503         else if (!strcasecmp(CONF_VISIBLE_BELL, name))
504                 options.visible_bell = str2bool(value);
505         else if (!strcasecmp(CONF_BELL_ON_WRAP, name))
506                 options.bell_on_wrap = str2bool(value);
507         else if (!strcasecmp(CONF_STATUS_MESSAGE_TIME, name))
508                 options.status_message_time = atoi(value);
509         else if (!strcasecmp(CONF_XTERM_TITLE, name))
510                 options.enable_xterm_title = str2bool(value);
511         else if (!strcasecmp(CONF_ENABLE_MOUSE, name))
512 #ifdef HAVE_GETMOUSE
513                 options.enable_mouse = str2bool(value);
514 #else
515         {}
516 #endif
517         else if (!strcasecmp(CONF_CROSSFADE_TIME, name))
518                 options.crossfade_time = atoi(value);
519         else if (!strcasecmp(CONF_SEARCH_MODE, name))
520                 options.search_mode = get_search_mode(value);
521         else if (!strcasecmp(CONF_HIDE_CURSOR, name))
522                 options.hide_cursor = atoi(value);
523         else if (!strcasecmp(CONF_SEEK_TIME, name))
524                 options.seek_time = atoi(value);
525         else if (!strcasecmp(CONF_SCREEN_LIST, name)) {
526                 g_strfreev(options.screen_list);
527                 options.screen_list = check_screen_list(value);
528         } else if (!strcasecmp(CONF_HOST, name))
529                 options.host = get_format(value);
530         else if (!strcasecmp(CONF_PORT, name))
531                 options.port = atoi(get_format(value));
532         else if (!strcasecmp(CONF_PASSWORD, name))
533                 options.password = get_format(value);
534         else if (!strcasecmp(CONF_TIMEOUT, name))
535                 options.timeout_ms = atoi(get_format(value))
536                                      * 1000 /* seconds -> milliseconds */;
537         else if (!strcasecmp(CONF_LYRICS_TIMEOUT, name))
538 #ifdef ENABLE_LYRICS_SCREEN
539                 options.lyrics_timeout = atoi(get_format(value));
540 #else
541         {}
542 #endif
543         else if (!strcasecmp(CONF_SCROLL, name))
544                 options.scroll = str2bool(value);
545         else if (!strcasecmp(CONF_SCROLL_SEP, name)) {
546                 g_free(options.scroll_sep);
547                 options.scroll_sep = get_format(value);
548         } else if (!strcasecmp(CONF_DISPLAY_TIME, name))
549                 /* obsolete, ignore */
550                 {}
551         else if (!strcasecmp(CONF_JUMP_PREFIX_ONLY, name))
552 #ifdef NCMPC_MINI
553                 {}
554 #else
555                 options.jump_prefix_only = str2bool(value);
556 #endif
557         else if (!strcasecmp(CONF_LYRICS_AUTOSAVE, name))
558 #ifdef ENABLE_LYRICS_SCREEN
559                 options.lyrics_autosave = str2bool(value);
560 #else
561         {}
562 #endif
563         else if (!strcasecmp(CONF_LYRICS_SHOW_PLUGIN, name))
564 #ifdef ENABLE_LYRICS_SCREEN
565                 options.lyrics_show_plugin = str2bool(value);
566 #else
567                 {}
568 #endif
569         else if (!strcasecmp(name, CONF_TEXT_EDITOR))
570 #ifdef ENABLE_LYRICS_SCREEN
571                 {
572                         g_free(options.text_editor);
573                         options.text_editor = get_format(value);
574                 }
575 #else
576                 {}
577 #endif
578         else if (!strcasecmp(name, CONF_TEXT_EDITOR_ASK))
579 #ifdef ENABLE_LYRICS_SCREEN
580                 options.text_editor_ask = str2bool(value);
581 #else
582                 {}
583 #endif
584         else if (!strcasecmp(name, CONF_CHAT_PREFIX))
585 #ifdef ENABLE_CHAT_SCREEN
586                 options.chat_prefix = get_format(value);
587 #else
588                 {}
589 #endif
590         else if (!strcasecmp(CONF_SECOND_COLUMN, name))
591 #ifdef NCMPC_MINI
592                 {}
593 #else
594                 options.second_column = str2bool(value);
595 #endif
596         else {
597                 print_error(_("Unknown configuration parameter"), name);
598                 return false;
599         }
601         return true;
604 static int
605 read_rc_file(char *filename)
607         assert(filename != NULL);
609         FILE *file = fopen(filename, "r");
610         if (file == NULL) {
611                 perror(filename);
612                 return -1;
613         }
615         char line[MAX_LINE_LENGTH];
616         while (fgets(line, sizeof(line), file) != NULL) {
617                 char *p = skip_spaces(line);
619                 if (*p != 0 && *p != COMMENT_TOKEN)
620                         parse_line(g_strchomp(p));
621         }
623         fclose(file);
624         return 0;
627 bool
628 check_user_conf_dir(void)
630         char *directory = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
632         if (g_file_test(directory, G_FILE_TEST_IS_DIR)) {
633                 g_free(directory);
634                 return true;
635         }
637         bool success = g_mkdir(directory, 0755) == 0;
638         g_free(directory);
639         return success;
642 char *
643 build_user_conf_filename(void)
645 #ifdef WIN32
646         return g_build_filename(g_get_user_config_dir(), PACKAGE, "ncmpc.conf", NULL);
647 #else
648         return g_build_filename(g_get_home_dir(), "." PACKAGE, "config", NULL);
649 #endif
652 char *
653 build_system_conf_filename(void)
655 #ifdef WIN32
656         const gchar* const *system_data_dirs;
657         gchar *pathname = NULL;
659         for (system_data_dirs = g_get_system_config_dirs (); *system_data_dirs != NULL; system_data_dirs++)
660         {
661                 pathname = g_build_filename(*system_data_dirs, PACKAGE, "ncmpc.conf", NULL);
662                 if (g_file_test(pathname, G_FILE_TEST_EXISTS))
663                 {
664                         break;
665                 }
666                 else
667                 {
668                         g_free (pathname);
669                         pathname = NULL;
670                 }
671         }
672         return pathname;
673 #else
674         return g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
675 #endif
678 char *
679 build_user_key_binding_filename(void)
681 #ifdef WIN32
682         return g_build_filename(g_get_user_config_dir(), PACKAGE, "keys.conf", NULL);
683 #else
684         return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
685 #endif
688 static char *
689 g_build_system_key_binding_filename(void)
691 #ifdef WIN32
692         const gchar* const *system_data_dirs;
693         gchar *pathname = NULL;
695         for (system_data_dirs = g_get_system_config_dirs (); *system_data_dirs != NULL; system_data_dirs++)
696         {
697                 pathname = g_build_filename(*system_data_dirs, PACKAGE, "keys.conf", NULL);
698                 if (g_file_test(pathname, G_FILE_TEST_EXISTS))
699                 {
700                         break;
701                 }
702                 else
703                 {
704                         g_free (pathname);
705                         pathname = NULL;
706                 }
707         }
708         return pathname;
709 #else
710         return g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
711 #endif
714 static char *
715 find_config_file(void)
717         /* check for command line configuration file */
718         if (options.config_file != NULL)
719                 return g_strdup(options.config_file);
721         /* check for user configuration ~/.ncmpc/config */
722         char *filename = build_user_conf_filename();
723         if (g_file_test(filename, G_FILE_TEST_IS_REGULAR))
724                 return filename;
726         g_free(filename);
728         /* check for  global configuration SYSCONFDIR/ncmpc/config */
729         filename = build_system_conf_filename();
730         if (g_file_test(filename, G_FILE_TEST_IS_REGULAR))
731                 return filename;
733         g_free(filename);
734         return NULL;
737 static char *
738 find_keys_file(void)
740         /* check for command line key binding file */
741         if (options.key_file != NULL)
742                 return g_strdup(options.key_file);
744         /* check for  user key bindings ~/.ncmpc/keys */
745         char *filename = build_user_key_binding_filename();
746         if (g_file_test(filename, G_FILE_TEST_IS_REGULAR))
747                 return filename;
749         g_free(filename);
751         /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
752         filename = g_build_system_key_binding_filename();
753         if (g_file_test(filename, G_FILE_TEST_IS_REGULAR))
754                 return filename;
756         g_free(filename);
757         return NULL;
760 void
761 read_configuration(void)
763         /* load configuration */
764         char *filename = find_config_file();
765         if (filename != NULL) {
766                 read_rc_file(filename);
767                 g_free(filename);
768         }
770         /* load key bindings */
771         filename = find_keys_file();
772         if (filename != NULL) {
773                 read_rc_file(filename);
774                 g_free(filename);
775         }