1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
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.
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.
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.
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 \f
23 #if !defined WIN32 && (!defined (__STDC__) || !__STDC__)
24 /* This is a separate conditional since some stdc systems
25 reject `defined (const)'. */
26 #ifndef const
27 #define const
28 #endif
29 #endif
31 #ifdef HAVE_CONFIG_H
32 #include "../rrd_config.h"
33 #endif
35 #include "rrd_getopt.h"
37 #include <stdio.h>
39 /* Comment out all this code if we are using the GNU C Library, and are not
40 actually compiling the library itself. This code is part of the GNU C
41 Library, but also included in many other GNU distributions. Compiling
42 and linking in this code is a waste when using the GNU C library
43 (especially if it is a shared library). Rather than having every GNU
44 program understand `configure --with-gnu-libc' and omit the object files,
45 it is simpler to just do this in the source for each such file. */
47 #define GETOPT_INTERFACE_VERSION 2
48 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
49 #include <gnu-versions.h>
50 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
51 #define ELIDE_CODE
52 #endif
53 #endif
55 #ifndef ELIDE_CODE
58 /* This needs to come after some library #include
59 to get __GNU_LIBRARY__ defined. */
60 #ifdef __GNU_LIBRARY__
61 #include <stdlib.h>
62 #endif
64 #ifndef NULL
65 #define NULL 0
66 #endif
68 int getopt_long(int argc,
69 char** argv,
70 const char* options,
71 const struct option* long_options,
72 int* opt_index)
73 {
74 return _getopt_internal(argc, argv, options, long_options, opt_index, 0);
75 }
77 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
78 If an option that starts with '-' (not '--') doesn't match a long option,
79 but does match a short option, it is parsed as a short option
80 instead. */
82 int getopt_long_only(int argc,
83 char** argv,
84 const char* options,
85 const struct option* long_options,
86 int* opt_index)
87 {
88 return _getopt_internal(argc, argv, options, long_options, opt_index, 1);
89 }
92 #endif /* Not ELIDE_CODE. */
93 \f
94 #ifdef TEST
96 #include <stdio.h>
98 int main(
99 argc,
100 argv)
101 int argc;
102 char **argv;
103 {
104 int c;
105 int digit_optind = 0;
106 struct option long_options[] = {
107 {"add", 1, 0, 0},
108 {"append", 0, 0, 0},
109 {"delete", 1, 0, 0},
110 {"verbose", 0, 0, 0},
111 {"create", 0, 0, 0},
112 {"file", 1, 0, 0},
113 {0, 0, 0, 0}
114 };
116 while (1) {
117 int this_option_optind = optind ? optind : 1;
118 int option_index = 0;
120 c = getopt_long(argc, argv, "abc:d:0123456789",
121 long_options, &option_index);
122 if (c == -1)
123 break;
125 switch (c) {
126 case 0:
127 printf("option %s", long_options[option_index].name);
128 if (optarg)
129 printf(" with arg %s", optarg);
130 printf("\n");
131 break;
133 case '0':
134 case '1':
135 case '2':
136 case '3':
137 case '4':
138 case '5':
139 case '6':
140 case '7':
141 case '8':
142 case '9':
143 if (digit_optind != 0 && digit_optind != this_option_optind)
144 printf("digits occur in two different argv-elements.\n");
145 digit_optind = this_option_optind;
146 printf("option %c\n", c);
147 break;
149 case 'a':
150 printf("option a\n");
151 break;
153 case 'b':
154 printf("option b\n");
155 break;
157 case 'c':
158 printf("option c with value `%s'\n", optarg);
159 break;
161 case 'd':
162 printf("option d with value `%s'\n", optarg);
163 break;
165 case '?':
166 break;
168 default:
169 printf("?? getopt returned character code 0%o ??\n", c);
170 }
171 }
173 if (optind < argc) {
174 printf("non-option ARGV-elements: ");
175 while (optind < argc)
176 printf("%s ", argv[optind++]);
177 printf("\n");
178 }
180 exit(0);
181 }
183 #endif /* TEST */