client/deps/cliparser/getopt.h

   1 /* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
   2 /* $FreeBSD$ */
   3
   4 /*-
   5  * SPDX-License-Identifier: BSD-2-Clause-NetBSD
   6  *
   7  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to The NetBSD Foundation
  11  * by Dieter Baron and Thomas Klausner.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef _GETOPT_H_
  36 #define _GETOPT_H_
  37
  38 #include <sys/cdefs.h>
  39
  40 /*
  41  * GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
  42  * getopt() is declared here too for GNU programs.
  43  */
  44 #define no_argument        0
  45 #define required_argument  1
  46 #define optional_argument  2
  47
  48 struct option {
  49     /* name of long option */
  50     const char *name;
  51     /*
  52      * one of no_argument, required_argument, and optional_argument:
  53      * whether option takes an argument
  54      */
  55     int has_arg;
  56     /* if not NULL, set *flag to val when option found */
  57     int *flag;
  58     /* if flag not NULL, value to set *flag to; else return value */
  59     int val;
  60 };
  61
  62 __BEGIN_DECLS
  63 int getopt_long(int, char *const *, const char *,
  64                 const struct option *, int *);
  65 int getopt_long_only(int, char *const *, const char *,
  66                      const struct option *, int *);
  67 #ifndef _GETOPT_DECLARED
  68 #define _GETOPT_DECLARED
  69 int getopt(int, char *const [], const char *);
  70
  71 extern const char *optarg; /* getopt(3) external variables */
  72 extern int optind, opterr, optopt;
  73 #endif
  74 #ifndef _OPTRESET_DECLARED
  75 #define _OPTRESET_DECLARED
  76 extern int optreset; /* getopt(3) external variable */
  77 #endif
  78 __END_DECLS
  79
  80 #endif /* !_GETOPT_H_ */