jcs.org
jcs's openbsd hax
openbsd
1/* $OpenBSD: getopt.c,v 1.10 2015/10/09 01:37:07 deraadt Exp $ */
2
3/*
4 * This material, written by Henry Spencer, was released by him
5 * into the public domain and is thus not subject to any copyright.
6 */
7
8#include <stdio.h>
9#include <stdlib.h>
10#include <unistd.h>
11#include <err.h>
12
13int
14main(int argc, char *argv[])
15{
16 extern int optind;
17 extern char *optarg;
18 int c;
19 int status = 0;
20
21 if (pledge("stdio", NULL) == -1)
22 err(1, "pledge");
23
24 optind = 2; /* Past the program name and the option letters. */
25 while ((c = getopt(argc, argv, argv[1])) != -1)
26 switch (c) {
27 case '?':
28 status = 1; /* getopt routine gave message */
29 break;
30 default:
31 if (optarg != NULL)
32 printf(" -%c %s", c, optarg);
33 else
34 printf(" -%c", c);
35 break;
36 }
37 printf(" --");
38 for (; optind < argc; optind++)
39 printf(" %s", argv[optind]);
40 printf("\n");
41 exit(status);
42}