1/* $NetBSD: getopt.h,v 1.11 2008/04/28 20:22:54 martin Exp $ */
2
3/*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Dieter Baron and Thomas Klausner.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _GETOPT_H_
33#define _GETOPT_H_
34
35#include <sys/cdefs.h>
36#include <unistd.h>
37
38/*
39 * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
40 */
41#define no_argument 0
42#define required_argument 1
43#define optional_argument 2
44
45struct option {
46 /* name of long option */
47 const char *name;
48 /*
49 * one of no_argument, required_argument, and optional_argument:
50 * whether option takes an argument
51 */
52 int has_arg;
53 /* if not NULL, set *flag to val when option found */
54 int *flag;
55 /* if flag not NULL, value to set *flag to; else return value */
56 int val;
57};
58
59__BEGIN_DECLS
60int getopt_long(int, char * const *, const char *,
61 const struct option *, int *);
62__END_DECLS
63
64#endif /* !_GETOPT_H_ */
65