getopt/getopt.c

   1 /*      $NetBSD: getopt.c,v 1.5 1998/02/03 03:44:22 perry Exp $ */
   2
   3 #include <sys/cdefs.h>
   4 #ifndef lint
   5 __RCSID("$NetBSD: getopt.c,v 1.5 1998/02/03 03:44:22 perry Exp $");
   6 #endif /* not lint */
   7
   8 #include <errno.h>
   9 #include <stdio.h>
  10 #include <unistd.h>
  11
  12 int     main __P((int, char **));
  13
  14 int
  15 main(argc, argv)
  16         int argc;
  17         char *argv[];
  18 {
  19         int c;
  20         int status = 0;
  21
  22         optind = 2;     /* Past the program name and the option letters. */
  23         while ((c = getopt(argc, argv, argv[1])) != -1)
  24                 switch (c) {
  25                 case '?':
  26                         status = 1;     /* getopt routine gave message */
  27                         break;
  28                 default:
  29                         if (optarg != NULL)
  30                                 printf(" -%c %s", c, optarg);
  31                         else
  32                                 printf(" -%c", c);
  33                         break;
  34                 }
  35         printf(" --");
  36         for (; optind < argc; optind++)
  37                 printf(" %s", argv[optind]);
  38         printf("\n");
  39         exit(status);
  40 }