]> git.proxmox.com Git - mirror_frr.git/blame - lib/getopt1.c
Merge pull request #13278 from FRRouting/mergify/bp/stable/8.5/pr-13269
[mirror_frr.git] / lib / getopt1.c
CommitLineData
718e3744 1/* getopt_long and getopt_long_only entry points for GNU getopt.
896014f4
DL
2 * Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
3 * Free Software Foundation, Inc.
4 *
5 * NOTE: The canonical source of this file is maintained with the GNU C Library.
6 * Bugs can be reported to bug-glibc@gnu.org.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
11 * later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 */
6b0655a2 22
024a7f06 23#include <zebra.h>
718e3744 24#include "getopt.h"
25
26#if !defined __STDC__ || !__STDC__
27/* This is a separate conditional since some stdc systems
28 reject `defined (const)'. */
29#ifndef const
30#define const
31#endif
32#endif
33
34#include <stdio.h>
35
36/* Comment out all this code if we are using the GNU C Library, and are not
37 actually compiling the library itself. This code is part of the GNU C
38 Library, but also included in many other GNU distributions. Compiling
39 and linking in this code is a waste when using the GNU C library
40 (especially if it is a shared library). Rather than having every GNU
41 program understand `configure --with-gnu-libc' and omit the object files,
42 it is simpler to just do this in the source for each such file. */
43
44#define GETOPT_INTERFACE_VERSION 2
45#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
46#include <gnu-versions.h>
47#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
48#define ELIDE_CODE
49#endif
50#endif
51
52#ifndef ELIDE_CODE
53
54
55/* This needs to come after some library #include
56 to get __GNU_LIBRARY__ defined. */
57#ifdef __GNU_LIBRARY__
58#include <stdlib.h>
59#endif
60
d62a17ae 61#ifndef NULL
718e3744 62#define NULL 0
63#endif
64
d62a17ae 65int getopt_long(argc, argv, options, long_options, opt_index) int argc;
66char *const *argv;
67const char *options;
68const struct option *long_options;
69int *opt_index;
718e3744 70{
d62a17ae 71 return _getopt_internal(argc, argv, options, long_options, opt_index,
72 0);
718e3744 73}
74
75/* Like getopt_long, but '-' as well as '--' can indicate a long option.
76 If an option that starts with '-' (not '--') doesn't match a long option,
77 but does match a short option, it is parsed as a short option
78 instead. */
79
d62a17ae 80int getopt_long_only(argc, argv, options, long_options, opt_index) int argc;
81char *const *argv;
82const char *options;
83const struct option *long_options;
84int *opt_index;
718e3744 85{
d62a17ae 86 return _getopt_internal(argc, argv, options, long_options, opt_index,
87 1);
718e3744 88}
89
90
d62a17ae 91#endif /* Not ELIDE_CODE. */
6b0655a2 92
718e3744 93#ifdef TEST
94
95#include <stdio.h>
96
d62a17ae 97int main(argc, argv) int argc;
98char **argv;
718e3744 99{
d62a17ae 100 int c;
101 int digit_optind = 0;
102
103 while (1) {
104 int this_option_optind = optind ? optind : 1;
105 int option_index = 0;
106 static struct option long_options[] = {
107 {"add", 1, 0, 0}, {"append", 0, 0, 0},
108 {"delete", 1, 0, 0}, {"verbose", 0, 0, 0},
109 {"create", 0, 0, 0}, {"file", 1, 0, 0},
110 {0, 0, 0, 0}};
111
112 c = getopt_long(argc, argv, "abc:d:0123456789", long_options,
113 &option_index);
114 if (c == -1)
115 break;
116
117 switch (c) {
118 case 0:
119 printf("option %s", long_options[option_index].name);
120 if (optarg)
121 printf(" with arg %s", optarg);
122 printf("\n");
123 break;
124
125 case '0':
126 case '1':
127 case '2':
128 case '3':
129 case '4':
130 case '5':
131 case '6':
132 case '7':
133 case '8':
134 case '9':
135 if (digit_optind != 0
136 && digit_optind != this_option_optind)
137 printf("digits occur in two different argv-elements.\n");
138 digit_optind = this_option_optind;
139 printf("option %c\n", c);
140 break;
141
142 case 'a':
143 printf("option a\n");
144 break;
145
146 case 'b':
147 printf("option b\n");
148 break;
149
150 case 'c':
151 printf("option c with value `%s'\n", optarg);
152 break;
153
154 case 'd':
155 printf("option d with value `%s'\n", optarg);
156 break;
157
158 case '?':
159 break;
160
161 default:
162 printf("?? getopt returned character code 0%o ??\n", c);
163 }
718e3744 164 }
718e3744 165
d62a17ae 166 if (optind < argc) {
167 printf("non-option ARGV-elements: ");
168 while (optind < argc)
169 printf("%s ", argv[optind++]);
170 printf("\n");
171 }
718e3744 172
d62a17ae 173 exit(0);
718e3744 174}
175
176#endif /* TEST */