include/getopt.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*      $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $    */
  24
  25 /*-
  26  * Copyright (c) 2000 The NetBSD Foundation, Inc.
  27  * All rights reserved.
  28  *
  29  * This code is derived from software contributed to The NetBSD Foundation
  30  * by Dieter Baron and Thomas Klausner.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *        This product includes software developed by the NetBSD
  43  *        Foundation, Inc. and its contributors.
  44  * 4. Neither the name of The NetBSD Foundation nor the names of its
  45  *    contributors may be used to endorse or promote products derived
  46  *    from this software without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  49  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  50  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  51  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  52  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  53  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  54  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  55  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  56  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  57  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  58  * POSSIBILITY OF SUCH DAMAGE.
  59  */
  60
  61 #ifndef _GETOPT_H_
  62 #define _GETOPT_H_
  63
  64 #include <sys/cdefs.h>
  65 #include <unistd.h>
  66
  67 /*
  68  * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
  69  */
  70 #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
  71 #define no_argument        0
  72 #define required_argument  1
  73 #define optional_argument  2
  74
  75 struct option {
  76         /* name of long option */
  77         const char *name;
  78         /*
  79          * one of no_argument, required_argument, and optional_argument:
  80          * whether option takes an argument
  81          */
  82         int has_arg;
  83         /* if not NULL, set *flag to val when option found */
  84         int *flag;
  85         /* if flag not NULL, value to set *flag to; else return value */
  86         int val;
  87 };
  88
  89 __BEGIN_DECLS
  90 int getopt_long(int, char * const *, const char *, const struct option *, int *);
  91 __END_DECLS
  92 #endif
  93
  94 #endif /* !_GETOPT_H_ */