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 #if !defined(_WIN32) && !defined(_WIN64) 44 # include <sys/cdefs.h> 45 #endif 46 47 /* 48 * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension. 49 * getopt() is declared here too for GNU programs. 50 */ 51 #define no_argument 0 52 #define required_argument 1 53 #define optional_argument 2 54 55 struct option { 56 /* name of long option */ 57 const char *name; 58 /* 59 * one of no_argument, required_argument, and optional_argument: 60 * whether option takes an argument 61 */ 62 int has_arg; 63 /* if not NULL, set *flag to val when option found */ 64 int *flag; 65 /* if flag not NULL, value to set *flag to; else return value */ 66 int val; 67 }; 68 69 extern int getopt_long(int, char * const *, const char *, 70 const struct option *, int *); 71 extern int getopt_long_only(int, char * const *, const char *, 72 const struct option *, int *); 73 #ifndef _GETOPT_DECLARED 74 #define _GETOPT_DECLARED 75 int getopt(int, char * const [], const char *); 76 77 extern char *optarg; /* getopt(3) external variables */ 78 extern int optind, opterr, optopt; 79 #endif 80 #ifndef _OPTRESET_DECLARED 81 #define _OPTRESET_DECLARED 82 extern int optreset; /* getopt(3) external variable */ 83 #endif 84 85 #endif /* !_GETOPT_H_ */ 86