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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_ */ |