1b37b9a6dSNate Williams #include <stdio.h> 2b37b9a6dSNate Williams 3b37b9a6dSNate Williams main(argc, argv) 4b37b9a6dSNate Williams int argc; 5b37b9a6dSNate Williams char *argv[]; 6b37b9a6dSNate Williams { 7b37b9a6dSNate Williams extern int optind; 8b37b9a6dSNate Williams extern char *optarg; 9b37b9a6dSNate Williams int c; 10b37b9a6dSNate Williams int status = 0; 11b37b9a6dSNate Williams 12b37b9a6dSNate Williams optind = 2; /* Past the program name and the option letters. */ 13b37b9a6dSNate Williams while ((c = getopt(argc, argv, argv[1])) != EOF) 14b37b9a6dSNate Williams switch (c) { 15b37b9a6dSNate Williams case '?': 16b37b9a6dSNate Williams status = 1; /* getopt routine gave message */ 17b37b9a6dSNate Williams break; 18b37b9a6dSNate Williams default: 19b37b9a6dSNate Williams if (optarg != NULL) 20b37b9a6dSNate Williams printf(" -%c %s", c, optarg); 21b37b9a6dSNate Williams else 22b37b9a6dSNate Williams printf(" -%c", c); 23b37b9a6dSNate Williams break; 24b37b9a6dSNate Williams } 25b37b9a6dSNate Williams printf(" --"); 26b37b9a6dSNate Williams for (; optind < argc; optind++) 27b37b9a6dSNate Williams printf(" %s", argv[optind]); 28b37b9a6dSNate Williams printf("\n"); 29b37b9a6dSNate Williams exit(status); 30b37b9a6dSNate Williams } 31