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         };
  14         char short_options[] = "d:v";
  15
  16         memset(opts, 0, sizeof(*opts));
  17
  18         while (1) {
  19                 c = getopt_long(argc, argv, short_options, long_options,
  20                                 &option_index);
  21
  22                 if (c == -1)
  23                         break;
  24
  25                 switch (c) {
  26                 case 'd':
  27                         opts->usbdev = optarg;
  28                         break;
  29                 case 'v':
  30                         if (optarg)
  31                                 opts->trace_level = atoi(optarg);
  32                         else
  33                                 opts->trace_level++;
  34                 case '?':
  35                         return -1;
  36                 }
  37         }
  38
  39         while (optind < argc) {
  40                 /*
  41                  * Some day we do something useful here with the rest
  42                  * of the options.. Maybe
  43                  */
  44                 optind++;
  45         }
  46
  47         return 0;
  48 }