mygetopt.h revision 284194 
1145519Sdarrenr/*	$NetBSD: getopt.h,v 1.8 2007/11/06 19:21:18 christos Exp $	*/
2145510Sdarrenr
3145510Sdarrenr/*-
4255332Scy * Copyright (c) 2000 The NetBSD Foundation, Inc.
5145510Sdarrenr * All rights reserved.
6145510Sdarrenr *
7145510Sdarrenr * This code is derived from software contributed to The NetBSD Foundation
8255332Scy * by Dieter Baron and Thomas Klausner.
9145510Sdarrenr *
10145510Sdarrenr * Redistribution and use in source and binary forms, with or without
11145510Sdarrenr * modification, are permitted provided that the following conditions
12145510Sdarrenr * are met:
13145510Sdarrenr * 1. Redistributions of source code must retain the above copyright
14145510Sdarrenr *    notice, this list of conditions and the following disclaimer.
15145510Sdarrenr * 2. Redistributions in binary form must reproduce the above copyright
16145510Sdarrenr *    notice, this list of conditions and the following disclaimer in the
17145510Sdarrenr *    documentation and/or other materials provided with the distribution.
18145510Sdarrenr * 3. All advertising materials mentioning features or use of this software
19145510Sdarrenr *    must display the following acknowledgement:
20145510Sdarrenr *        This product includes software developed by the NetBSD
21145510Sdarrenr *        Foundation, Inc. and its contributors.
22145510Sdarrenr * 4. Neither the name of The NetBSD Foundation nor the names of its
23145510Sdarrenr *    contributors may be used to endorse or promote products derived
24145510Sdarrenr *    from this software without specific prior written permission.
25145510Sdarrenr *
26145510Sdarrenr * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27145510Sdarrenr * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28255332Scy * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29145510Sdarrenr * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30145510Sdarrenr * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31145510Sdarrenr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32255332Scy * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33255332Scy * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34255332Scy * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35145510Sdarrenr * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36145510Sdarrenr * POSSIBILITY OF SUCH DAMAGE.
37145510Sdarrenr */
38145510Sdarrenr
39145510Sdarrenr#ifndef _GETOPT_H_
40255332Scy#define _GETOPT_H_
41145510Sdarrenr
42145510Sdarrenr#include <unistd.h>
43145510Sdarrenr
44145510Sdarrenr/*
45145510Sdarrenr * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
46145510Sdarrenr */
47145510Sdarrenr#define no_argument        0
48255332Scy#define required_argument  1
49145510Sdarrenr#define optional_argument  2
50145510Sdarrenr
51145510Sdarrenrstruct option {
52145510Sdarrenr	/* name of long option */
53145510Sdarrenr	const char *name;
54145510Sdarrenr	/*
55145510Sdarrenr	 * one of no_argument, required_argument, and optional_argument:
56145510Sdarrenr	 * whether option takes an argument
57255332Scy	 */
58145510Sdarrenr	int has_arg;
59145510Sdarrenr	/* if not NULL, set *flag to val when option found */
60145510Sdarrenr	int *flag;
61145510Sdarrenr	/* if flag not NULL, value to set *flag to; else return value */
62	int val;
63};
64
65int getopt_long(int, char * const *, const char *,
66    const struct option *, int *);
67
68#endif /* !_GETOPT_H_ */
69