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klish / libc / getopt.h @ 1a733d28

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/*-
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 * Copyright (c) 2000 The NetBSD Foundation, Inc.
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 * All rights reserved.
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 *
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 * This code is derived from software contributed to The NetBSD Foundation
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 * by Dieter Baron and Thomas Klausner.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 *
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 *      $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $
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 */
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#ifndef _GETOPT_H_
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#define _GETOPT_H_
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/*
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 * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
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 */
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#define no_argument        0
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#define required_argument  1
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#define optional_argument  2
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct option {
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        /* name of long option */
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        const char *name;
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        /*
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         * one of no_argument, required_argument, and optional_argument:
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         * whether option takes an argument
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         */
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        int has_arg;
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        /* if not NULL, set *flag to val when option found */
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        int *flag;
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        /* if flag not NULL, value to set *flag to; else return value */
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        int val;
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};
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int getopt_long(int, char * const *, const char *,
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    const struct option *, int *);
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extern int optreset;
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extern char *optarg;
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extern int opterr;
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extern int optind;
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extern int optopt;
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#ifdef __cplusplus
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};
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#endif
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#endif /* !_GETOPT_H_ */