1/*
2 * our_getopt.h
3 *
4 * Header file for the getopt_long deprived.
5 *
6 * $Id: our_getopt.h,v 1.1.1.1 2002/06/21 08:52:00 fenix_nl Exp $
7 */
8
9/* Declarations for getopt.
10   Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
11   This file is part of the GNU C Library.
12
13   The GNU C Library is free software; you can redistribute it and/or
14   modify it under the terms of the GNU Library General Public License as
15   published by the Free Software Foundation; either version 2 of the
16   License, or (at your option) any later version.
17
18   The GNU C Library is distributed in the hope that it will be useful,
19   but WITHOUT ANY WARRANTY; without even the implied warranty of
20   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21   Library General Public License for more details.
22
23   You should have received a copy of the GNU Library General Public
24   License along with the GNU C Library; see the file COPYING.LIB.  If not,
25   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
26   Boston, MA 02111-1307, USA.  */
27
28#ifndef _GETOPT_H
29
30#ifndef __need_getopt
31# define _GETOPT_H 1
32#endif
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/* For communication from `getopt' to the caller.
39   When `getopt' finds an option that takes an argument,
40   the argument value is returned here.
41   Also, when `ordering' is RETURN_IN_ORDER,
42   each non-option ARGV-element is returned here.  */
43
44extern char *optarg;
45
46/* Index in ARGV of the next element to be scanned.
47   This is used for communication to and from the caller
48   and for communication between successive calls to `getopt'.
49
50   On entry to `getopt', zero means this is the first call; initialize.
51
52   When `getopt' returns -1, this is the index of the first of the
53   non-option elements that the caller should itself scan.
54
55   Otherwise, `optind' communicates from one call to the next
56   how much of ARGV has been scanned so far.  */
57
58extern int optind;
59
60/* Callers store zero here to inhibit the error message `getopt' prints
61   for unrecognized options.  */
62
63extern int opterr;
64
65/* Set to an option character which was unrecognized.  */
66
67extern int optopt;
68
69#ifndef __need_getopt
70/* Describe the long-named options requested by the application.
71   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
72   of `struct option' terminated by an element containing a name which is
73   zero.
74
75   The field `has_arg' is:
76   no_argument		(or 0) if the option does not take an argument,
77   required_argument	(or 1) if the option requires an argument,
78   optional_argument 	(or 2) if the option takes an optional argument.
79
80   If the field `flag' is not NULL, it points to a variable that is set
81   to the value given in the field `val' when the option is found, but
82   left unchanged if the option is not found.
83
84   To have a long-named option do something other than set an `int' to
85   a compiled-in constant, such as set a value from `optarg', set the
86   option's `flag' field to zero and its `val' field to a nonzero
87   value (the equivalent single-letter option character, if there is
88   one).  For long options that have a zero `flag' field, `getopt'
89   returns the contents of the `val' field.  */
90
91struct option
92{
93# if defined __STDC__ && __STDC__
94  const char *name;
95# else
96  char *name;
97# endif
98  /* has_arg can't be an enum because some compilers complain about
99     type mismatches in all the code that assumes it is an int.  */
100  int has_arg;
101  int *flag;
102  int val;
103};
104
105/* Names for the values of the `has_arg' field of `struct option'.  */
106
107# define no_argument		0
108# define required_argument	1
109# define optional_argument	2
110#endif	/* need getopt */
111
112
113/* Get definitions and prototypes for functions to process the
114   arguments in ARGV (ARGC of them, minus the program name) for
115   options given in OPTS.
116
117   Return the option character from OPTS just read.  Return -1 when
118   there are no more options.  For unrecognized options, or options
119   missing arguments, `optopt' is set to the option letter, and '?' is
120   returned.
121
122   The OPTS string is a list of characters which are recognized option
123   letters, optionally followed by colons, specifying that that letter
124   takes an argument, to be placed in `optarg'.
125
126   If a letter in OPTS is followed by two colons, its argument is
127   optional.  This behavior is specific to the GNU `getopt'.
128
129   The argument `--' causes premature termination of argument
130   scanning, explicitly telling `getopt' that there are no more
131   options.
132
133   If OPTS begins with `--', then non-option arguments are treated as
134   arguments to the option '\0'.  This behavior is specific to the GNU
135   `getopt'.  */
136
137#if defined __STDC__ && __STDC__
138# ifdef __GNU_LIBRARY__
139/* Many other libraries have conflicting prototypes for getopt, with
140   differences in the consts, in stdlib.h.  To avoid compilation
141   errors, only prototype getopt for the GNU C library.  */
142extern int getopt (int __argc, char *const *__argv, const char *__shortopts);
143# else /* not __GNU_LIBRARY__ */
144extern int getopt ();
145# endif /* __GNU_LIBRARY__ */
146
147# ifndef __need_getopt
148extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts,
149		        const struct option *__longopts, int *__longind);
150extern int getopt_long_only (int __argc, char *const *__argv,
151			     const char *__shortopts,
152		             const struct option *__longopts, int *__longind);
153
154/* Internal only.  Users should not call this directly.  */
155extern int _getopt_internal (int __argc, char *const *__argv,
156			     const char *__shortopts,
157		             const struct option *__longopts, int *__longind,
158			     int __long_only);
159# endif
160#else /* not __STDC__ */
161extern int getopt ();
162# ifndef __need_getopt
163extern int getopt_long ();
164extern int getopt_long_only ();
165
166extern int _getopt_internal ();
167# endif
168#endif /* __STDC__ */
169
170#ifdef	__cplusplus
171}
172#endif
173
174/* Make sure we later can get all the definitions and declarations.  */
175#undef __need_getopt
176
177#endif /* getopt.h */
178