1 /* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Dieter Baron and Thomas Klausner. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _GETOPT_H_ 40 #define _GETOPT_H_ 41 42 #include <sys/cdefs.h> 43 #include <unistd.h> 44 45 /* 46 * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions 47 */ 48 #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE) 49 #define no_argument 0 50 #define required_argument 1 51 #define optional_argument 2 52 53 struct option { 54 /* name of long option */ 55 const char *name; 56 /* 57 * one of no_argument, required_argument, and optional_argument: 58 * whether option takes an argument 59 */ 60 int has_arg; 61 /* if not NULL, set *flag to val when option found */ 62 int *flag; 63 /* if flag not NULL, value to set *flag to; else return value */ 64 int val; 65 }; 66 67 __BEGIN_DECLS 68 int getopt_long __P((int, char * const *, const char *, 69 const struct option *, int *)); 70 __END_DECLS 71 #endif 72 73 #endif /* !_GETOPT_H_ */ 74