1 /* $NetBSD: getopt.h,v 1.11 2008/04/28 20:22:54 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _GETOPT_H_ 33 #define _GETOPT_H_ 34 35 #include <sys/cdefs.h> 36 #include <unistd.h> 37 38 /* 39 * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions 40 */ 41 #define no_argument 0 42 #define required_argument 1 43 #define optional_argument 2 44 45 struct option { 46 /* name of long option */ 47 const char *name; 48 /* 49 * one of no_argument, required_argument, and optional_argument: 50 * whether option takes an argument 51 */ 52 int has_arg; 53 /* if not NULL, set *flag to val when option found */ 54 int *flag; 55 /* if flag not NULL, value to set *flag to; else return value */ 56 int val; 57 }; 58 59 __BEGIN_DECLS 60 int getopt_long(int, char * const *, const char *, 61 const struct option *, int *); 62 __END_DECLS 63 64 #endif /* !_GETOPT_H_ */ 65