]>
git.proxmox.com Git - mirror_frr.git/blob - lib/getopt1.c
1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 * Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
3 * Free Software Foundation, Inc.
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.
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
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.
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
26 #if !defined __STDC__ || !__STDC__
27 /* This is a separate conditional since some stdc systems
28 reject `defined (const)'. */
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. */
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
55 /* This needs to come after some library #include
56 to get __GNU_LIBRARY__ defined. */
57 #ifdef __GNU_LIBRARY__
65 int getopt_long(argc
, argv
, options
, long_options
, opt_index
) int argc
;
68 const struct option
*long_options
;
71 return _getopt_internal(argc
, argv
, options
, long_options
, opt_index
,
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
80 int getopt_long_only(argc
, argv
, options
, long_options
, opt_index
) int argc
;
83 const struct option
*long_options
;
86 return _getopt_internal(argc
, argv
, options
, long_options
, opt_index
,
91 #endif /* Not ELIDE_CODE. */
97 int main(argc
, argv
) int argc
;
101 int digit_optind
= 0;
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},
112 c
= getopt_long(argc
, argv
, "abc:d:0123456789", long_options
,
119 printf("option %s", long_options
[option_index
].name
);
121 printf(" with arg %s", optarg
);
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
);
143 printf("option a\n");
147 printf("option b\n");
151 printf("option c with value `%s'\n", optarg
);
155 printf("option d with value `%s'\n", optarg
);
162 printf("?? getopt returned character code 0%o ??\n", c
);
167 printf("non-option ARGV-elements: ");
168 while (optind
< argc
)
169 printf("%s ", argv
[optind
++]);