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
22 #ifndef WIN32
23 #if !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
30 #endif // WIN32
32 #ifdef HAVE_CONFIG_H
33 #include "../rrd_config.h"
34 #endif
36 #include "rrd_getopt.h"
38 #include <stdio.h>
40 /* Comment out all this code if we are using the GNU C Library, and are not
41 actually compiling the library itself. This code is part of the GNU C
42 Library, but also included in many other GNU distributions. Compiling
43 and linking in this code is a waste when using the GNU C library
44 (especially if it is a shared library). Rather than having every GNU
45 program understand `configure --with-gnu-libc' and omit the object files,
46 it is simpler to just do this in the source for each such file. */
48 #define GETOPT_INTERFACE_VERSION 2
49 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
50 #include <gnu-versions.h>
51 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
52 #define ELIDE_CODE
53 #endif
54 #endif
56 #ifndef ELIDE_CODE
59 /* This needs to come after some library #include
60 to get __GNU_LIBRARY__ defined. */
61 #ifdef __GNU_LIBRARY__
62 #include <stdlib.h>
63 #endif
65 #ifndef NULL
66 #define NULL 0
67 #endif
69 #ifdef WIN32
70 int getopt_long(int argc,
71 char** argv,
72 const char* options,
73 const struct option* long_options,
74 int* opt_index)
75 #else // WIN32
76 int getopt_long(
77 argc,
78 argv,
79 options,
80 long_options,
81 opt_index)
82 int argc;
83 char *const *argv;
84 const char *options;
85 const struct option *long_options;
86 int *opt_index;
87 #endif // WIN32
88 {
89 return _getopt_internal(argc, argv, options, long_options, opt_index, 0);
90 }
92 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
93 If an option that starts with '-' (not '--') doesn't match a long option,
94 but does match a short option, it is parsed as a short option
95 instead. */
97 #ifdef WIN32
98 int getopt_long_only(int argc,
99 char** argv,
100 const char* options,
101 const struct option* long_options,
102 int* opt_index)
103 #else // WIN32
104 int getopt_long_only(
105 argc,
106 argv,
107 options,
108 long_options,
109 opt_index)
110 int argc;
111 char *const *argv;
112 const char *options;
113 const struct option *long_options;
114 int *opt_index;
115 #endif // WIN32
116 {
117 return _getopt_internal(argc, argv, options, long_options, opt_index, 1);
118 }
121 #endif /* Not ELIDE_CODE. */
122 \f
123 #ifdef TEST
125 #include <stdio.h>
127 int main(
128 argc,
129 argv)
130 int argc;
131 char **argv;
132 {
133 int c;
134 int digit_optind = 0;
135 struct option long_options[] = {
136 {"add", 1, 0, 0},
137 {"append", 0, 0, 0},
138 {"delete", 1, 0, 0},
139 {"verbose", 0, 0, 0},
140 {"create", 0, 0, 0},
141 {"file", 1, 0, 0},
142 {0, 0, 0, 0}
143 };
145 while (1) {
146 int this_option_optind = optind ? optind : 1;
147 int option_index = 0;
149 c = getopt_long(argc, argv, "abc:d:0123456789",
150 long_options, &option_index);
151 if (c == -1)
152 break;
154 switch (c) {
155 case 0:
156 printf("option %s", long_options[option_index].name);
157 if (optarg)
158 printf(" with arg %s", optarg);
159 printf("\n");
160 break;
162 case '0':
163 case '1':
164 case '2':
165 case '3':
166 case '4':
167 case '5':
168 case '6':
169 case '7':
170 case '8':
171 case '9':
172 if (digit_optind != 0 && digit_optind != this_option_optind)
173 printf("digits occur in two different argv-elements.\n");
174 digit_optind = this_option_optind;
175 printf("option %c\n", c);
176 break;
178 case 'a':
179 printf("option a\n");
180 break;
182 case 'b':
183 printf("option b\n");
184 break;
186 case 'c':
187 printf("option c with value `%s'\n", optarg);
188 break;
190 case 'd':
191 printf("option d with value `%s'\n", optarg);
192 break;
194 case '?':
195 break;
197 default:
198 printf("?? getopt returned character code 0%o ??\n", c);
199 }
200 }
202 if (optind < argc) {
203 printf("non-option ARGV-elements: ");
204 while (optind < argc)
205 printf("%s ", argv[optind++]);
206 printf("\n");
207 }
209 exit(0);
210 }
212 #endif /* TEST */