src/compat/getopt.h

/* Declarations for getopt.
   Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.

   This file is part of the GNU C Library.  Its master source is NOT part of
   the C library, however.  The master source lives in /gd/gnu/lib.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef _PVPGN_GETOPT_H_
#define _PVPGN_GETOPT_H_ 1

#include "common/setup_before.h"

#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#ifndef HAVE_GETOPT

#ifdef  __cplusplus
extern "C" {
#endif

/* For communication from `getopt' to the caller.
   When `getopt' finds an option that takes an argument,
   the argument value is returned here.
   Also, when `ordering' is RETURN_IN_ORDER,
   each non-option ARGV-element is returned here.  */

extern char *optarg;

/* Index in ARGV of the next element to be scanned.
   This is used for communication to and from the caller
   and for communication between successive calls to `getopt'.

   On entry to `getopt', zero means this is the first call; initialize.

   When `getopt' returns -1, this is the index of the first of the
   non-option elements that the caller should itself scan.

   Otherwise, `optind' communicates from one call to the next
   how much of ARGV has been scanned so far.  */

extern int optind;

/* Callers store zero here to inhibit the error message `getopt' prints
   for unrecognized options.  */

extern int opterr;

/* Set to an option character which was unrecognized.  */

extern int optopt;

/* Describe the long-named options requested by the application.
   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
   of `struct option' terminated by an element containing a name which is
   zero.

   The field `has_arg' is:
   no_argument          (or 0) if the option does not take an argument,
   required_argument    (or 1) if the option requires an argument,
   optional_argument    (or 2) if the option takes an optional argument.

   If the field `flag' is not NULL, it points to a variable that is set
   to the value given in the field `val' when the option is found, but
   left unchanged if the option is not found.

   To have a long-named option do something other than set an `int' to
   a compiled-in constant, such as set a value from `optarg', set the
   option's `flag' field to zero and its `val' field to a nonzero
   value (the equivalent single-letter option character, if there is
   one).  For long options that have a zero `flag' field, `getopt'
   returns the contents of the `val' field.  */

struct option
{
#if defined (__STDC__) && __STDC__
  const char *name;
#else
  char *name;
#endif
  /* has_arg can't be an enum because some compilers complain about
     type mismatches in all the code that assumes it is an int.  */
  int has_arg;
  int *flag;
  int val;
};

/* Names for the values of the `has_arg' field of `struct option'.  */

#define no_argument             0
#define required_argument       1
#define optional_argument       2

#ifdef WIN32
#define extern
#endif

#if defined (__STDC__) && __STDC__
#ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
   differences in the consts, in stdlib.h.  To avoid compilation
   errors, only prototype getopt for the GNU C library.  */
extern int getopt (int argc, char *const *argv, const char *shortopts);
#else /* not __GNU_LIBRARY__ */
extern int getopt ();
#endif /* __GNU_LIBRARY__ */
extern int getopt_long (int argc, char *const *argv, const char *shortopts,
                        const struct option *longopts, int *longind);
extern int getopt_long_only (int argc, char *const *argv,
                             const char *shortopts,
                             const struct option *longopts, int *longind);

/* Internal only.  Users should not call this directly.  */
extern int _getopt_internal (int argc, char *const *argv,
                             const char *shortopts,
                             const struct option *longopts, int *longind,
                             int long_only);
#else /* not __STDC__ */
extern int getopt ();
extern int getopt_long ();
extern int getopt_long_only ();

extern int _getopt_internal ();
#endif /* __STDC__ */

#ifdef WIN32
#undef extern
#endif

#ifdef  __cplusplus
}
#endif

#endif /* !HAVE_GETOPT */

#endif /* _PVPGN_GETOPT_H_ */
1	sysadm	1.1	/* Declarations for getopt.
2			Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.
3
4			This file is part of the GNU C Library. Its master source is NOT part of
5			the C library, however. The master source lives in /gd/gnu/lib.
6
7			The GNU C Library is free software; you can redistribute it and/or
8			modify it under the terms of the GNU Library General Public License as
9			published by the Free Software Foundation; either version 2 of the
10			License, or (at your option) any later version.
11
12			The GNU C Library is distributed in the hope that it will be useful,
13			but WITHOUT ANY WARRANTY; without even the implied warranty of
14			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			Library General Public License for more details.
16
17			You should have received a copy of the GNU Library General Public
18			License along with the GNU C Library; see the file COPYING.LIB. If not,
19			write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20			Boston, MA 02111-1307, USA. */
21
22			#ifndef _PVPGN_GETOPT_H_
23			#define _PVPGN_GETOPT_H_ 1
24
25			#include "common/setup_before.h"
26
27			#ifdef HAVE_UNISTD_H
28			# include <unistd.h>
29			#endif
30
31			#ifndef HAVE_GETOPT
32
33			#ifdef __cplusplus
34			extern "C" {
35			#endif
36
37			/* For communication from `getopt' to the caller.
38			When `getopt' finds an option that takes an argument,
39			the argument value is returned here.
40			Also, when `ordering' is RETURN_IN_ORDER,
41			each non-option ARGV-element is returned here. */
42
43			extern char *optarg;
44
45			/* Index in ARGV of the next element to be scanned.
46			This is used for communication to and from the caller
47			and for communication between successive calls to `getopt'.
48
49			On entry to `getopt', zero means this is the first call; initialize.
50
51			When `getopt' returns -1, this is the index of the first of the
52			non-option elements that the caller should itself scan.
53
54			Otherwise, `optind' communicates from one call to the next
55			how much of ARGV has been scanned so far. */
56
57			extern int optind;
58
59			/* Callers store zero here to inhibit the error message `getopt' prints
60			for unrecognized options. */
61
62			extern int opterr;
63
64			/* Set to an option character which was unrecognized. */
65
66			extern int optopt;
67
68			/* Describe the long-named options requested by the application.
69			The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
70			of `struct option' terminated by an element containing a name which is
71			zero.
72
73			The field `has_arg' is:
74			no_argument (or 0) if the option does not take an argument,
75			required_argument (or 1) if the option requires an argument,
76			optional_argument (or 2) if the option takes an optional argument.
77
78			If the field `flag' is not NULL, it points to a variable that is set
79			to the value given in the field `val' when the option is found, but
80			left unchanged if the option is not found.
81
82			To have a long-named option do something other than set an `int' to
83			a compiled-in constant, such as set a value from `optarg', set the
84			option's `flag' field to zero and its `val' field to a nonzero
85			value (the equivalent single-letter option character, if there is
86			one). For long options that have a zero `flag' field, `getopt'
87			returns the contents of the `val' field. */
88
89			struct option
90			{
91			#if defined (__STDC__) && __STDC__
92			const char *name;
93			#else
94			char *name;
95			#endif
96			/* has_arg can't be an enum because some compilers complain about
97			type mismatches in all the code that assumes it is an int. */
98			int has_arg;
99			int *flag;
100			int val;
101			};
102
103			/* Names for the values of the `has_arg' field of `struct option'. */
104
105			#define no_argument 0
106			#define required_argument 1
107			#define optional_argument 2
108
109			#ifdef WIN32
110			#define extern
111			#endif
112
113			#if defined (__STDC__) && __STDC__
114			#ifdef __GNU_LIBRARY__
115			/* Many other libraries have conflicting prototypes for getopt, with
116			differences in the consts, in stdlib.h. To avoid compilation
117			errors, only prototype getopt for the GNU C library. */
118			extern int getopt (int argc, char const argv, const char *shortopts);
119			#else /* not __GNU_LIBRARY__ */
120			extern int getopt ();
121			#endif /* __GNU_LIBRARY__ */
122			extern int getopt_long (int argc, char const argv, const char *shortopts,
123			const struct option longopts, int longind);
124			extern int getopt_long_only (int argc, char const argv,
125			const char *shortopts,
126			const struct option longopts, int longind);
127
128			/* Internal only. Users should not call this directly. */
129			extern int _getopt_internal (int argc, char const argv,
130			const char *shortopts,
131			const struct option longopts, int longind,
132			int long_only);
133			#else /* not __STDC__ */
134			extern int getopt ();
135			extern int getopt_long ();
136			extern int getopt_long_only ();
137
138			extern int _getopt_internal ();
139			#endif /* __STDC__ */
140
141			#ifdef WIN32
142			#undef extern
143			#endif
144
145			#ifdef __cplusplus
146			}
147			#endif
148
149			#endif /* !HAVE_GETOPT */
150
151			#endif /* _PVPGN_GETOPT_H_ */
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