git.maemo.org Git - browser-switch/blob - config-ui/browser-switchboard-config.c

   1 /*
   2  * browser-switchboard-config.c -- command-line configuration utility for
   3  * Browser Switchboard
   4  *
   5  * Copyright (C) 2009-2010 Steven Luo
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * 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
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20  * USA.
  21  */
  22
  23
  24 #include <stdlib.h>
  25 #include <stddef.h>
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include <getopt.h>
  29
  30 #include "config.h"
  31
  32 extern struct swb_config_option swb_config_options[];
  33
  34 static int get_config_value(char *name) {
  35         struct swb_config cfg;
  36         struct swb_config_option *optinfo;
  37         ptrdiff_t i;
  38         int retval = 1;
  39
  40         swb_config_init(&cfg);
  41
  42         if (!swb_config_load(&cfg))
  43                 return 1;
  44
  45         for (optinfo = swb_config_options; optinfo->name; ++optinfo) {
  46                 if (strcmp(name, optinfo->name))
  47                         continue;
  48
  49                 i = optinfo - swb_config_options;
  50                 switch (optinfo->type) {
  51                   case SWB_CONFIG_OPT_STRING:
  52                         printf("%s\n", *(char **)cfg.entries[i]);
  53                         break;
  54                   case SWB_CONFIG_OPT_INT:
  55                         printf("%d\n", *(int *)cfg.entries[i]);
  56                         break;
  57                   default:
  58                         break;
  59                 }
  60                 retval = 0;
  61                 break;
  62         }
  63
  64         swb_config_free(&cfg);
  65
  66         return retval;
  67 }
  68
  69 static int set_config_value(char *name, char *value) {
  70         struct swb_config cfg;
  71         struct swb_config_option *optinfo;
  72         ptrdiff_t i;
  73         int retval = 1;
  74
  75         swb_config_init(&cfg);
  76
  77         if (!swb_config_load(&cfg))
  78                 return 1;
  79
  80         for (optinfo = swb_config_options; optinfo->name; ++optinfo) {
  81                 if (strcmp(name, optinfo->name))
  82                         continue;
  83
  84                 i = optinfo - swb_config_options;
  85                 switch (optinfo->type) {
  86                   case SWB_CONFIG_OPT_STRING:
  87                         /* Free any existing string */
  88                         if (cfg.flags & optinfo->set_mask)
  89                                 free(*(char **)cfg.entries[i]);
  90
  91                         if (strlen(value) == 0) {
  92                                 /* If the new value is empty, clear the config
  93                                    setting */
  94                                 *(char **)cfg.entries[i] = NULL;
  95                                 cfg.flags &= ~optinfo->set_mask;
  96                         } else {
  97                                 /* Make a copy of the string -- it's not safe
  98                                    to free value, which comes from argv */
  99                                 if (!(*(char **)cfg.entries[i] =
 100                                       strdup(value)))
 101                                         exit(1);
 102                                 cfg.flags |= optinfo->set_mask;
 103                         }
 104                         break;
 105                   case SWB_CONFIG_OPT_INT:
 106                         if (strlen(value) == 0) {
 107                                 /* If the new value is empty, clear the config
 108                                    setting */
 109                                 cfg.flags &= ~optinfo->set_mask;
 110                         } else {
 111                                 *(int *)cfg.entries[i] = atoi(value);
 112                                 cfg.flags |= optinfo->set_mask;
 113                         }
 114                         break;
 115                 }
 116                 retval = 0;
 117                 break;
 118         }
 119
 120         if (!retval)
 121                 if (!swb_config_save(&cfg))
 122                         retval = 1;
 123
 124         swb_config_free(&cfg);
 125
 126         /* Try to send SIGHUP to any running browser-switchboard process
 127            This causes it to reread config files if in continuous_mode, or
 128            die so that the config will be reloaded on next start otherwise */
 129         system("kill -HUP `pidof browser-switchboard` > /dev/null 2>&1");
 130
 131         return retval;
 132 }
 133
 134 void usage(void) {
 135         printf("Usage:\n");
 136         printf("  browser-switchboard-config -b -- Display default browser\n");
 137         printf("  browser-switchboard-config -c -- Display command used when default browser is \"other\"\n");
 138         printf("  browser-switchboard-config -m -- Display continuous mode setting\n");
 139         printf("  browser-switchboard-config -o option -- Display value of option\n");
 140         printf("\n");
 141         printf("  browser-switchboard-config -s [-b|-c|-m|-o option] value -- Set the selected option to value\n");
 142         printf("\n");
 143         printf("  browser-switchboard-config -h -- Show this message\n");
 144 }
 145
 146 int main(int argc, char **argv) {
 147         int opt, done = 0;
 148         int set = 0;
 149         char *selected_opt = NULL;
 150
 151         while (!done && (opt = getopt(argc, argv, "hsbcmo:")) != -1) {
 152                 switch (opt) {
 153                   case 'h':
 154                         usage();
 155                         exit(0);
 156                         break;
 157                   case 's':
 158                         set = 1;
 159                         break;
 160                   case 'b':
 161                         selected_opt = "default_browser";
 162                         done = 1;
 163                         break;
 164                   case 'c':
 165                         selected_opt = "other_browser_cmd";
 166                         done = 1;
 167                         break;
 168                   case 'm':
 169                         selected_opt = "continuous_mode";
 170                         done = 1;
 171                         break;
 172                   case 'o':
 173                         selected_opt = optarg;
 174                         done = 1;
 175                         break;
 176                   default:
 177                         usage();
 178                         exit(1);
 179                         break;
 180                 }
 181         }
 182
 183         if (!selected_opt) {
 184                 printf("Must specify one of -b, -c, -m, -o\n");
 185                 usage();
 186                 exit(1);
 187         }
 188
 189         if (set) {
 190                 if (optind >= argc) {
 191                         printf("Value to set config option to not provided\n");
 192                         usage();
 193                         exit(1);
 194                 }
 195                 return set_config_value(selected_opt, argv[optind]);
 196         } else
 197                 return get_config_value(selected_opt);
 198 }