ust/ust.c

   1 #include <unistd.h>
   2 #include <getopt.h>
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <fcntl.h>
   6
   7 #include "ustcomm.h"
   8
   9 void parse_opts(int argc, char **argv)
  10 {
  11         int flags, opt;
  12         int nsecs, tfnd;
  13
  14         nsecs = 0;
  15         tfnd = 0;
  16         flags = 0;
  17         while ((opt = getopt(argc, argv, "nt:")) != -1) {
  18                 switch (opt) {
  19                 case 'n':
  20                         flags = 1;
  21                         break;
  22                 case 't':
  23                         nsecs = atoi(optarg);
  24                         tfnd = 1;
  25                         break;
  26                 default:        /* '?' */
  27                         fprintf(stderr, "Usage: %s [-t nsecs] [-n] name\n",
  28                                 argv[0]);
  29                         exit(EXIT_FAILURE);
  30                 }
  31         }
  32
  33         printf("flags=%d; tfnd=%d; optind=%d\n", flags, tfnd, optind);
  34
  35         if (optind >= argc) {
  36                 fprintf(stderr, "Expected argument after options\n");
  37                 exit(EXIT_FAILURE);
  38         }
  39
  40         printf("name argument = %s\n", argv[optind]);
  41
  42         /* Other code omitted */
  43
  44         exit(EXIT_SUCCESS);
  45
  46 }
  47
  48 int main(int argc, char *argv[])
  49 {
  50         pid_t pid = atoi(argv[1]);
  51
  52         char *msg = argv[2];
  53
  54         send_message(pid, msg, NULL);
  55
  56         return 0;
  57 }