1/*	$NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $	*/
 2/*	$FreeBSD: src/include/getopt.h,v 1.6 2004/02/24 08:09:20 ache Exp $ */
 3
 4/*-
 5 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 6 * All rights reserved.
 7 *
 8 * This code is derived from software contributed to The NetBSD Foundation
 9 * by Dieter Baron and Thomas Klausner.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *        This product includes software developed by the NetBSD
22 *        Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 *    contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#ifndef _GETOPT_H_
41#define _GETOPT_H_
42
43#include <sys/cdefs.h>
44#include <_bounds.h>
45#include <unistd.h>
46
47_LIBC_SINGLE_BY_DEFAULT()
48
49/*
50 * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
51 * getopt() is declared here too for GNU programs.
52 */
53#define no_argument        0
54#define required_argument  1
55#define optional_argument  2
56
57struct option {
58	/* name of long option */
59	const char *name;
60	/*
61	 * one of no_argument, required_argument, and optional_argument:
62	 * whether option takes an argument
63	 */
64	int has_arg;
65	/* if not NULL, set *flag to val when option found */
66	int *flag;
67	/* if flag not NULL, value to set *flag to; else return value */
68	int val;
69};
70
71__BEGIN_DECLS
72int	getopt_long(int __argc, char *_LIBC_CSTR const *_LIBC_COUNT(__argc), const char *,
73	const struct option *, int *);
74int	getopt_long_only(int __argc, char * const *_LIBC_COUNT(__argc), const char *,
75	const struct option *, int *);
76#ifndef _GETOPT
77#define	_GETOPT
78int	 getopt(int __argc, char *_LIBC_CSTR const [_LIBC_COUNT(__argc)], const char *) __DARWIN_ALIAS(getopt);
79
80extern char *_LIBC_CSTR optarg;			/* getopt(3) external variables */
81extern int optind, opterr, optopt;
82#endif
83#ifndef _OPTRESET
84#define	_OPTRESET
85extern int optreset;			/* getopt(3) external variable */
86#endif
87__END_DECLS
88 
89#endif /* !_GETOPT_H_ */