getopt.h (3417B) - Raw
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 57 struct 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 72 int getopt_long(int __argc, char *_LIBC_CSTR const *_LIBC_COUNT(__argc), const char *, 73 const struct option *, int *); 74 int getopt_long_only(int __argc, char * const *_LIBC_COUNT(__argc), const char *, 75 const struct option *, int *); 76 #ifndef _GETOPT 77 #define _GETOPT 78 int getopt(int __argc, char *_LIBC_CSTR const [_LIBC_COUNT(__argc)], const char *) __DARWIN_ALIAS(getopt); 79 80 extern char *_LIBC_CSTR optarg; /* getopt(3) external variables */ 81 extern int optind, opterr, optopt; 82 #endif 83 #ifndef _OPTRESET 84 #define _OPTRESET 85 extern int optreset; /* getopt(3) external variable */ 86 #endif 87 __END_DECLS 88 89 #endif /* !_GETOPT_H_ */