48e2f01c |
1 | /* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */ |
2 | /* $FreeBSD: src/include/getopt.h,v 1.6.34.1 2010/12/21 17:10:29 kensmith 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 | |
44 | #ifdef __cplusplus |
45 | extern "C" { |
46 | #endif |
47 | |
48 | /* |
49 | * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension. |
50 | * getopt() is declared here too for GNU programs. |
51 | */ |
52 | #define no_argument 0 |
53 | #define required_argument 1 |
54 | #define optional_argument 2 |
55 | |
56 | struct option { |
57 | /* name of long option */ |
58 | const char *name; |
59 | /* |
60 | * one of no_argument, required_argument, and optional_argument: |
61 | * whether option takes an argument |
62 | */ |
63 | int has_arg; |
64 | /* if not NULL, set *flag to val when option found */ |
65 | int *flag; |
66 | /* if flag not NULL, value to set *flag to; else return value */ |
67 | int val; |
68 | }; |
69 | |
70 | int getopt_long(int, char * const *, const char *, |
71 | const struct option *, int *); |
72 | int getopt_long_only(int, char * const *, const char *, |
73 | const struct option *, int *); |
74 | #ifndef _GETOPT_DECLARED |
75 | #define _GETOPT_DECLARED |
76 | int getopt(int, char * const [], const char *); |
77 | |
78 | extern char *optarg; /* getopt(3) external variables */ |
79 | extern int optind, opterr, optopt; |
80 | #endif |
81 | #ifndef _OPTRESET_DECLARED |
82 | #define _OPTRESET_DECLARED |
83 | extern int optreset; /* getopt(3) external variable */ |
84 | #endif |
85 | |
86 | #ifdef __cplusplus |
87 | } |
88 | #endif |
89 | |
90 | #endif /* !_GETOPT_H_ */ |