util/wdread.c

   1 /* wdread.c - read value from defaults database
   2  *
   3  *  WindowMaker window manager
   4  *
   5  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   6  *  (cowardly remade from wdwrite.c; by judas@hell on Jan 26 2001)
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License along
  19  *  with this program; if not, write to the Free Software Foundation, Inc.,
  20  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #ifdef __GLIBC__
  24 #define _GNU_SOURCE             /* getopt_long */
  25 #endif
  26
  27 /*
  28  * WindowMaker defaults DB reader
  29  */
  30
  31 #include <getopt.h>
  32 #include <limits.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <unistd.h>
  37
  38 #include <WINGs/WUtil.h>
  39
  40 #include "../src/wconfig.h"
  41
  42 extern char *__progname;
  43
  44 void print_help(int print_usage, int exitval)
  45 {
  46         printf("Usage: %s [OPTIONS] <domain> <key>\n", __progname);
  47         if (print_usage) {
  48                 puts("Read <key> from <domain>'s database");
  49                 puts("");
  50                 puts("  -h, --help              display this help message");
  51                 puts("  -v, --version           output version information and exit");
  52         }
  53         exit(exitval);
  54 }
  55
  56 int main(int argc, char **argv)
  57 {
  58         char path[PATH_MAX];
  59         WMPropList *key, *value, *dict;
  60         int ch;
  61
  62         struct option longopts[] = {
  63                 { "version",    no_argument,            NULL,                   'v' },
  64                 { "help",       no_argument,            NULL,                   'h' },
  65                 { NULL,         0,                      NULL,                   0 }
  66         };
  67
  68         while ((ch = getopt_long(argc, argv, "hv", longopts, NULL)) != -1)
  69                 switch(ch) {
  70                         case 'v':
  71                                 printf("%s (Window Maker %s)\n", __progname, VERSION);
  72                                 return 0;
  73                                 /* NOTREACHED */
  74                         case 'h':
  75                                 print_help(1, 0);
  76                                 /* NOTREACHED */
  77                         case 0:
  78                                 break;
  79                         default:
  80                                 print_help(0, 1);
  81                                 /* NOTREACHED */
  82                 }
  83
  84         argc -= optind;
  85         argv += optind;
  86
  87         if (argc != 2)
  88                 print_help(0, 1);
  89
  90         key = WMCreatePLString(argv[1]);
  91
  92         snprintf(path, sizeof(path), "%s", wdefaultspathfordomain(argv[0]));
  93
  94         dict = WMReadPropListFromFile(path);
  95         if (dict == NULL)
  96                 return 1;       /* bad domain */
  97
  98         value = WMGetFromPLDictionary(dict, key);
  99         if (value == NULL)
 100                 return 2;       /* bad key */
 101
 102         printf("%s\n", WMGetPropListDescription(value, True));
 103         return 0;
 104 }