1 /* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
5 * SPDX-License-Identifier: BSD-2-Clause
7 * Copyright (c) 2000 The NetBSD Foundation, Inc.
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Dieter Baron and Thomas Klausner.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/cdefs.h>
41 * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
42 * getopt() is declared here too for GNU programs.
45 #define required_argument 1
46 #define optional_argument 2
49 /* name of long option */
52 * one of no_argument, required_argument, and optional_argument:
53 * whether option takes an argument
56 /* if not NULL, set *flag to val when option found */
58 /* if flag not NULL, value to set *flag to; else return value */
63 int getopt_long(int, char * const *, const char *,
64 const struct option *, int *);
65 int getopt_long_only(int, char * const *, const char *,
66 const struct option *, int *);
67 #ifndef _GETOPT_DECLARED
68 #define _GETOPT_DECLARED
69 int getopt(int, char * const [], const char *);
71 extern char *optarg; /* getopt(3) external variables */
72 extern int optind, opterr, optopt;
74 #ifndef _OPTRESET_DECLARED
75 #define _OPTRESET_DECLARED
76 extern int optreset; /* getopt(3) external variable */
80 #endif /* !_GETOPT_H_ */