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 #ifndef WIN32
32 #ifdef HAVE_CONFIG_H
33 #include "../rrd_config.h"
34 #endif
35 #endif
37 #include "rrd_getopt.h"
39 #include <stdio.h>
41 /* Comment out all this code if we are using the GNU C Library, and are not
42 actually compiling the library itself. This code is part of the GNU C
43 Library, but also included in many other GNU distributions. Compiling
44 and linking in this code is a waste when using the GNU C library
45 (especially if it is a shared library). Rather than having every GNU
46 program understand `configure --with-gnu-libc' and omit the object files,
47 it is simpler to just do this in the source for each such file. */
49 #define GETOPT_INTERFACE_VERSION 2
50 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
51 #include <gnu-versions.h>
52 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
53 #define ELIDE_CODE
54 #endif
55 #endif
57 #ifndef ELIDE_CODE
60 /* This needs to come after some library #include
61 to get __GNU_LIBRARY__ defined. */
62 #ifdef __GNU_LIBRARY__
63 #include <stdlib.h>
64 #endif
66 #ifndef NULL
67 #define NULL 0
68 #endif
70 int getopt_long(int argc,
71 #ifdef WIN32
72 char** argv,
73 #else // WIN32
74 char* const* argv,
75 #endif //WIN32
76 const char* options,
77 const struct option* long_options,
78 int* opt_index)
79 {
80 return _getopt_internal(argc, argv, options, long_options, opt_index, 0);
81 }
83 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
84 If an option that starts with '-' (not '--') doesn't match a long option,
85 but does match a short option, it is parsed as a short option
86 instead. */
88 int getopt_long_only(int argc,
89 #ifdef WIN32
90 char** argv,
91 #else // WIN32
92 char* const* argv,
93 #endif //WIN32
94 const char* options,
95 const struct option* long_options,
96 int* opt_index)
97 {
98 return _getopt_internal(argc, argv, options, long_options, opt_index, 1);
99 }
102 #endif /* Not ELIDE_CODE. */
103 \f
104 #ifdef TEST
106 #include <stdio.h>
108 int main(
109 argc,
110 argv)
111 int argc;
112 char **argv;
113 {
114 int c;
115 int digit_optind = 0;
116 struct option long_options[] = {
117 {"add", 1, 0, 0},
118 {"append", 0, 0, 0},
119 {"delete", 1, 0, 0},
120 {"verbose", 0, 0, 0},
121 {"create", 0, 0, 0},
122 {"file", 1, 0, 0},
123 {0, 0, 0, 0}
124 };
126 while (1) {
127 int this_option_optind = optind ? optind : 1;
128 int option_index = 0;
130 c = getopt_long(argc, argv, "abc:d:0123456789",
131 long_options, &option_index);
132 if (c == -1)
133 break;
135 switch (c) {
136 case 0:
137 printf("option %s", long_options[option_index].name);
138 if (optarg)
139 printf(" with arg %s", optarg);
140 printf("\n");
141 break;
143 case '0':
144 case '1':
145 case '2':
146 case '3':
147 case '4':
148 case '5':
149 case '6':
150 case '7':
151 case '8':
152 case '9':
153 if (digit_optind != 0 && digit_optind != this_option_optind)
154 printf("digits occur in two different argv-elements.\n");
155 digit_optind = this_option_optind;
156 printf("option %c\n", c);
157 break;
159 case 'a':
160 printf("option a\n");
161 break;
163 case 'b':
164 printf("option b\n");
165 break;
167 case 'c':
168 printf("option c with value `%s'\n", optarg);
169 break;
171 case 'd':
172 printf("option d with value `%s'\n", optarg);
173 break;
175 case '?':
176 break;
178 default:
179 printf("?? getopt returned character code 0%o ??\n", c);
180 }
181 }
183 if (optind < argc) {
184 printf("non-option ARGV-elements: ");
185 while (optind < argc)
186 printf("%s ", argv[optind++]);
187 printf("\n");
188 }
190 exit(0);
191 }
193 #endif /* TEST */