"Fossies" - the Fresh Open Source Software Archive 
Member "npadmin-0.14/getopt.h" (19 Apr 2001, 5402 Bytes) of package /linux/misc/old/npadmin-0.14.tar.gz:
As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) C and C++ source code syntax highlighting (style:
standard) with prefixed line numbers and
code folding option.
Alternatively you can here
view or
download the uninterpreted source code file.
1 /* Copyright (c) 2000 Ben Woodard
2 * All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public Licence
6 * as published by the Free Software Foundation; either version 2
7 * of the Licence, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRENTY; without even the implied warrenty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public Licence in the COPYING file for more
13 * details.
14 *
15 * You should have received a copy of the GNU Library General
16 * Public License along with the GNU C Library; see the file
17 * COPYING.LIB. If not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 /* Declarations for getopt.
22 Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
23
24 NOTE: The canonical source of this file is maintained with the GNU C Library.
25 Bugs can be reported to bug-glibc@gnu.org.
26
27 This program is free software; you can redistribute it and/or modify it
28 under the terms of the GNU General Public License as published by the
29 Free Software Foundation; either version 2, or (at your option) any
30 later version.
31
32 This program is distributed in the hope that it will be useful,
33 but WITHOUT ANY WARRANTY; without even the implied warranty of
34 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35 GNU General Public License for more details.
36
37 You should have received a copy of the GNU General Public License
38 along with this program; if not, write to the Free Software
39 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
40 USA. */
41
42 #ifndef _GETOPT_H
43 #define _GETOPT_H 1
44
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48
49 /* For communication from `getopt' to the caller.
50 When `getopt' finds an option that takes an argument,
51 the argument value is returned here.
52 Also, when `ordering' is RETURN_IN_ORDER,
53 each non-option ARGV-element is returned here. */
54
55 extern char *optarg;
56
57 /* Index in ARGV of the next element to be scanned.
58 This is used for communication to and from the caller
59 and for communication between successive calls to `getopt'.
60
61 On entry to `getopt', zero means this is the first call; initialize.
62
63 When `getopt' returns -1, this is the index of the first of the
64 non-option elements that the caller should itself scan.
65
66 Otherwise, `optind' communicates from one call to the next
67 how much of ARGV has been scanned so far. */
68
69 extern int optind;
70
71 /* Callers store zero here to inhibit the error message `getopt' prints
72 for unrecognized options. */
73
74 extern int opterr;
75
76 /* Set to an option character which was unrecognized. */
77
78 extern int optopt;
79
80 /* Describe the long-named options requested by the application.
81 The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
82 of `struct option' terminated by an element containing a name which is
83 zero.
84
85 The field `has_arg' is:
86 no_argument (or 0) if the option does not take an argument,
87 required_argument (or 1) if the option requires an argument,
88 optional_argument (or 2) if the option takes an optional argument.
89
90 If the field `flag' is not NULL, it points to a variable that is set
91 to the value given in the field `val' when the option is found, but
92 left unchanged if the option is not found.
93
94 To have a long-named option do something other than set an `int' to
95 a compiled-in constant, such as set a value from `optarg', set the
96 option's `flag' field to zero and its `val' field to a nonzero
97 value (the equivalent single-letter option character, if there is
98 one). For long options that have a zero `flag' field, `getopt'
99 returns the contents of the `val' field. */
100
101 struct option
102 {
103 #if defined (__STDC__) && __STDC__
104 const char *name;
105 #else
106 char *name;
107 #endif
108 /* has_arg can't be an enum because some compilers complain about
109 type mismatches in all the code that assumes it is an int. */
110 int has_arg;
111 int *flag;
112 int val;
113 };
114
115 /* Names for the values of the `has_arg' field of `struct option'. */
116
117 #define no_argument 0
118 #define required_argument 1
119 #define optional_argument 2
120
121 #if defined (__STDC__) && __STDC__
122 #ifdef __GNU_LIBRARY__
123 /* Many other libraries have conflicting prototypes for getopt, with
124 differences in the consts, in stdlib.h. To avoid compilation
125 errors, only prototype getopt for the GNU C library. */
126 extern int getopt (int argc, char *const *argv, const char *shortopts);
127 #else /* not __GNU_LIBRARY__ */
128 extern int getopt ();
129 #endif /* __GNU_LIBRARY__ */
130 extern int getopt_long (int argc, char *const *argv, const char *shortopts,
131 const struct option *longopts, int *longind);
132 extern int getopt_long_only (int argc, char *const *argv,
133 const char *shortopts,
134 const struct option *longopts, int *longind);
135
136 /* Internal only. Users should not call this directly. */
137 extern int _getopt_internal (int argc, char *const *argv,
138 const char *shortopts,
139 const struct option *longopts, int *longind,
140 int long_only);
141 #else /* not __STDC__ */
142 extern int getopt ();
143 extern int getopt_long ();
144 extern int getopt_long_only ();
145
146 extern int _getopt_internal ();
147 #endif /* __STDC__ */
148
149 #ifdef __cplusplus
150 }
151 #endif
152
153 #endif /* _GETOPT_H */