/* $OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $ */ /* $NetBSD: getopt.h,v 1.1.1.1 2020/03/03 00:11:47 christos Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Dieter Baron and Thomas Klausner. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _GETOPT_H_ #define _GETOPT_H_ /* * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions */ #define no_argument 0 #define required_argument 1 #define optional_argument 2 struct option { /* name of long option */ const char *name; /* * one of no_argument, required_argument, and optional_argument: * whether option takes an argument */ int has_arg; /* if not NULL, set *flag to val when option found */ int *flag; /* if flag not NULL, value to set *flag to; else return value */ int val; }; int getopt_long(int, char * const *, const char *, const struct option *, int *); int getopt_long_only(int, char * const *, const char *, const struct option *, int *); #ifndef _GETOPT_DEFINED_ #define _GETOPT_DEFINED_ int getopt(int, char * const *, const char *); int getsubopt(char **, char * const *, char **); extern char *optarg; /* getopt(3) external variables */ extern int opterr; extern int optind; extern int optopt; extern int optreset; extern char *suboptarg; /* getsubopt(3) external variable */ #endif #endif /* !_GETOPT_H_ */