getopt/getopt.c

   1 #include <sys/cdefs.h>
   2 __RCSID("$FreeBSD: src/usr.bin/getopt/getopt.c,v 1.10 2002/09/04 23:29:01 dwmalone Exp $");
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7
   8 int
   9 main(int argc, char *argv[])
  10 {
  11         int c;
  12         int status = 0;
  13
  14         optind = 2;     /* Past the program name and the option letters. */
  15         while ((c = getopt(argc, argv, argv[1])) != -1)
  16                 switch (c) {
  17                 case '?':
  18                         status = 1;     /* getopt routine gave message */
  19                         break;
  20                 default:
  21                         if (optarg != NULL)
  22                                 printf(" -%c %s", c, optarg);
  23                         else
  24                                 printf(" -%c", c);
  25                         break;
  26                 }
  27         printf(" --");
  28         for (; optind < argc; optind++)
  29                 printf(" %s", argv[optind]);
  30         printf("\n");
  31         return status;
  32 }