git.itanic.dy.fi Git - glucose/blob - options.c

   1 #include <getopt.h>
   2 #include <string.h>
   3 #include <stdlib.h>
   4
   5 #include "options.h"
   6
   7 int read_args(int argc, char *argv[], struct user_options *opts)
   8 {
   9         int option_index = 0, c;
  10         static struct option long_options[] = {
  11                 { .val = 'd', .name = "device", .has_arg = 1, },
  12                 { .val = 'v', .name = "verbose", .has_arg = 2 },
  13                 { .val = 'o', .name = "output", .has_arg = 1 },
  14         };
  15         char short_options[] = "d:v:o:";
  16
  17         memset(opts, 0, sizeof(*opts));
  18
  19         while (1) {
  20                 c = getopt_long(argc, argv, short_options, long_options,
  21                                 &option_index);
  22
  23                 if (c == -1)
  24                         break;
  25
  26                 switch (c) {
  27                 case 'd':
  28                         opts->usbdev = optarg;
  29                         break;
  30                 case 'v':
  31                         if (optarg)
  32                                 opts->trace_level = atoi(optarg);
  33                         else
  34                                 opts->trace_level++;
  35                 case 'o':
  36                         opts->output_path = optarg;
  37                         break;
  38                 case '?':
  39                         return -1;
  40                 }
  41         }
  42
  43         while (optind < argc) {
  44                 /*
  45                  * Some day we do something useful here with the rest
  46                  * of the options.. Maybe
  47                  */
  48                 optind++;
  49         }
  50
  51         return 0;
  52 }