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  1. /*  $NetBSD: getopt.h,v 1.10.6.1 2008/05/18 12:30:09 yamt 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. /* Ported to HelenOS August 2008 by Tim Post <echo@echoreply.us> */
  33.  
  34. #ifndef _GETOPT_H_
  35. #define _GETOPT_H_
  36.  
  37. #include <unistd.h>
  38.  
  39. /*
  40.  * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
  41.  */
  42. #define no_argument        0
  43. #define required_argument  1
  44. #define optional_argument  2
  45.  
  46. struct option {
  47.     /* name of long option */
  48.     const char *name;
  49.     /*
  50.      * one of no_argument, required_argument, and optional_argument:
  51.      * whether option takes an argument
  52.      */
  53.     int has_arg;
  54.     /* if not NULL, set *flag to val when option found */
  55.     int *flag;
  56.     /* if flag not NULL, value to set *flag to; else return value */
  57.     int val;
  58. };
  59.  
  60. /* HelenOS Port - These need to be exposed for legacy getopt() */
  61. extern char *optarg;
  62. extern int optind, opterr, optopt;
  63. extern int optreset;
  64.  
  65. int getopt_long(int, char * const *, const char *,
  66.     const struct option *, int *);
  67.  
  68. /* HelenOS Port : Expose legacy getopt() */
  69. int  getopt(int, char * const [], const char *);
  70.  
  71. #endif /* !_GETOPT_H_ */
  72.