110d565efSmrg /* getopt_long and getopt_long_only entry points for GNU getopt.
2*ec02198aSmrg Copyright (C) 1987-2020 Free Software Foundation, Inc.
310d565efSmrg
410d565efSmrg NOTE: This source is derived from an old version taken from the GNU C
510d565efSmrg Library (glibc).
610d565efSmrg
710d565efSmrg This program is free software; you can redistribute it and/or modify it
810d565efSmrg under the terms of the GNU General Public License as published by the
910d565efSmrg Free Software Foundation; either version 2, or (at your option) any
1010d565efSmrg later version.
1110d565efSmrg
1210d565efSmrg This program is distributed in the hope that it will be useful,
1310d565efSmrg but WITHOUT ANY WARRANTY; without even the implied warranty of
1410d565efSmrg MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1510d565efSmrg GNU General Public License for more details.
1610d565efSmrg
1710d565efSmrg You should have received a copy of the GNU General Public License
1810d565efSmrg along with this program; if not, write to the Free Software
1910d565efSmrg Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
2010d565efSmrg USA. */
2110d565efSmrg
2210d565efSmrg #ifdef HAVE_CONFIG_H
2310d565efSmrg #include <config.h>
2410d565efSmrg #endif
2510d565efSmrg
2610d565efSmrg #if !defined __STDC__ || !__STDC__
2710d565efSmrg /* This is a separate conditional since some stdc systems
2810d565efSmrg reject `defined (const)'. */
2910d565efSmrg #ifndef const
3010d565efSmrg #define const
3110d565efSmrg #endif
3210d565efSmrg #endif
3310d565efSmrg
3410d565efSmrg #include <stdio.h>
3510d565efSmrg
3610d565efSmrg #include "getopt.h"
3710d565efSmrg
3810d565efSmrg /* Comment out all this code if we are using the GNU C Library, and are not
3910d565efSmrg actually compiling the library itself. This code is part of the GNU C
4010d565efSmrg Library, but also included in many other GNU distributions. Compiling
4110d565efSmrg and linking in this code is a waste when using the GNU C library
4210d565efSmrg (especially if it is a shared library). Rather than having every GNU
4310d565efSmrg program understand `configure --with-gnu-libc' and omit the object files,
4410d565efSmrg it is simpler to just do this in the source for each such file. */
4510d565efSmrg
4610d565efSmrg #define GETOPT_INTERFACE_VERSION 2
4710d565efSmrg #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
4810d565efSmrg #include <gnu-versions.h>
4910d565efSmrg #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
5010d565efSmrg #define ELIDE_CODE
5110d565efSmrg #endif
5210d565efSmrg #endif
5310d565efSmrg
5410d565efSmrg #ifndef ELIDE_CODE
5510d565efSmrg
5610d565efSmrg
5710d565efSmrg /* This needs to come after some library #include
5810d565efSmrg to get __GNU_LIBRARY__ defined. */
5910d565efSmrg #ifdef __GNU_LIBRARY__
6010d565efSmrg #include <stdlib.h>
6110d565efSmrg #endif
6210d565efSmrg
6310d565efSmrg #ifndef NULL
6410d565efSmrg #define NULL 0
6510d565efSmrg #endif
6610d565efSmrg
6710d565efSmrg int
getopt_long(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)6810d565efSmrg getopt_long (int argc, char *const *argv, const char *options,
6910d565efSmrg const struct option *long_options, int *opt_index)
7010d565efSmrg {
7110d565efSmrg return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
7210d565efSmrg }
7310d565efSmrg
7410d565efSmrg /* Like getopt_long, but '-' as well as '--' can indicate a long option.
7510d565efSmrg If an option that starts with '-' (not '--') doesn't match a long option,
7610d565efSmrg but does match a short option, it is parsed as a short option
7710d565efSmrg instead. */
7810d565efSmrg
7910d565efSmrg int
getopt_long_only(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)8010d565efSmrg getopt_long_only (int argc, char *const *argv, const char *options,
8110d565efSmrg const struct option *long_options, int *opt_index)
8210d565efSmrg {
8310d565efSmrg return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
8410d565efSmrg }
8510d565efSmrg
8610d565efSmrg
8710d565efSmrg #endif /* Not ELIDE_CODE. */
8810d565efSmrg
8910d565efSmrg #ifdef TEST
9010d565efSmrg
9110d565efSmrg #include <stdio.h>
9210d565efSmrg
9310d565efSmrg int
main(int argc,char ** argv)9410d565efSmrg main (int argc, char **argv)
9510d565efSmrg {
9610d565efSmrg int c;
9710d565efSmrg int digit_optind = 0;
9810d565efSmrg
9910d565efSmrg while (1)
10010d565efSmrg {
10110d565efSmrg int this_option_optind = optind ? optind : 1;
10210d565efSmrg int option_index = 0;
10310d565efSmrg static struct option long_options[] =
10410d565efSmrg {
10510d565efSmrg {"add", 1, 0, 0},
10610d565efSmrg {"append", 0, 0, 0},
10710d565efSmrg {"delete", 1, 0, 0},
10810d565efSmrg {"verbose", 0, 0, 0},
10910d565efSmrg {"create", 0, 0, 0},
11010d565efSmrg {"file", 1, 0, 0},
11110d565efSmrg {0, 0, 0, 0}
11210d565efSmrg };
11310d565efSmrg
11410d565efSmrg c = getopt_long (argc, argv, "abc:d:0123456789",
11510d565efSmrg long_options, &option_index);
11610d565efSmrg if (c == -1)
11710d565efSmrg break;
11810d565efSmrg
11910d565efSmrg switch (c)
12010d565efSmrg {
12110d565efSmrg case 0:
12210d565efSmrg printf ("option %s", long_options[option_index].name);
12310d565efSmrg if (optarg)
12410d565efSmrg printf (" with arg %s", optarg);
12510d565efSmrg printf ("\n");
12610d565efSmrg break;
12710d565efSmrg
12810d565efSmrg case '0':
12910d565efSmrg case '1':
13010d565efSmrg case '2':
13110d565efSmrg case '3':
13210d565efSmrg case '4':
13310d565efSmrg case '5':
13410d565efSmrg case '6':
13510d565efSmrg case '7':
13610d565efSmrg case '8':
13710d565efSmrg case '9':
13810d565efSmrg if (digit_optind != 0 && digit_optind != this_option_optind)
13910d565efSmrg printf ("digits occur in two different argv-elements.\n");
14010d565efSmrg digit_optind = this_option_optind;
14110d565efSmrg printf ("option %c\n", c);
14210d565efSmrg break;
14310d565efSmrg
14410d565efSmrg case 'a':
14510d565efSmrg printf ("option a\n");
14610d565efSmrg break;
14710d565efSmrg
14810d565efSmrg case 'b':
14910d565efSmrg printf ("option b\n");
15010d565efSmrg break;
15110d565efSmrg
15210d565efSmrg case 'c':
15310d565efSmrg printf ("option c with value `%s'\n", optarg);
15410d565efSmrg break;
15510d565efSmrg
15610d565efSmrg case 'd':
15710d565efSmrg printf ("option d with value `%s'\n", optarg);
15810d565efSmrg break;
15910d565efSmrg
16010d565efSmrg case '?':
16110d565efSmrg break;
16210d565efSmrg
16310d565efSmrg default:
16410d565efSmrg printf ("?? getopt returned character code 0%o ??\n", c);
16510d565efSmrg }
16610d565efSmrg }
16710d565efSmrg
16810d565efSmrg if (optind < argc)
16910d565efSmrg {
17010d565efSmrg printf ("non-option ARGV-elements: ");
17110d565efSmrg while (optind < argc)
17210d565efSmrg printf ("%s ", argv[optind++]);
17310d565efSmrg printf ("\n");
17410d565efSmrg }
17510d565efSmrg
17610d565efSmrg exit (0);
17710d565efSmrg }
17810d565efSmrg
17910d565efSmrg #endif /* TEST */
180