/* getopt_long and getopt_long_only entry points for GNU getopt.

Copyright (C) 1987, 88, 89, 90, 91, 92, 1993

Free Software Foundation, Inc.

This program is free software; you can redistribute it and/or modify it

under the terms of the GNU General Public License as published by the

Free Software Foundation; either version 2, or (at your option) any

later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */



#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include "getopt.h"

#ifndef __STDC__

/* This is a separate conditional since some stdc systems

reject `defined (const)'. */

#ifndef const

#define const

#endif

#endif

#include <stdio.h>

/* Comment out all this code if we are using the GNU C Library, and are not

actually compiling the library itself. This code is part of the GNU C

Library, but also included in many other GNU distributions. Compiling

and linking in this code is a waste when using the GNU C library

(especially if it is a shared library). Rather than having every GNU

program understand `configure --with-gnu-libc' and omit the object files,

it is simpler to just do this in the source for each such file. */

#if defined (_LIBC) || !defined (__GNU_LIBRARY__)

/* This needs to come after some library #include

to get __GNU_LIBRARY__ defined. */

#ifdef __GNU_LIBRARY__

#include <stdlib.h>

#else

char *getenv ();

#endif

#ifndef NULL

#define NULL 0

#endif

int

getopt_long (argc, argv, options, long_options, opt_index)

int argc;

char *const *argv;

const char *options;

const struct option *long_options;

int *opt_index;

{

return _getopt_internal (argc, argv, options, long_options, opt_index, 0);

}

/* Like getopt_long, but '-' as well as '--' can indicate a long option.

If an option that starts with '-' (not '--') doesn't match a long option,

but does match a short option, it is parsed as a short option

instead. */

int

getopt_long_only (argc, argv, options, long_options, opt_index)

int argc;

char *const *argv;

const char *options;

const struct option *long_options;

int *opt_index;

{

return _getopt_internal (argc, argv, options, long_options, opt_index, 1);

}

#endif /* _LIBC or not __GNU_LIBRARY__. */



#ifdef TEST

#include <stdio.h>

int

main (argc, argv)

int argc;

char **argv;

{

int c;

int digit_optind = 0;

while (1)

{

int this_option_optind = optind ? optind : 1;

int option_index = 0;

static struct option long_options[] =

{

{"add", 1, 0, 0},

{"append", 0, 0, 0},

{"delete", 1, 0, 0},

{"verbose", 0, 0, 0},

{"create", 0, 0, 0},

{"file", 1, 0, 0},

{0, 0, 0, 0}

};

c = getopt_long (argc, argv, "abc:d:0123456789",

long_options, &option_index);

if (c == EOF)

break;

switch (c)

{

case 0:

printf ("option %s", long_options[option_index].name);

if (optarg)

printf (" with arg %s", optarg);

printf ("\n");

break;

case '0':

case '1':

case '2':

case '3':

case '4':

case '5':

case '6':

case '7':

case '8':

case '9':

if (digit_optind != 0 && digit_optind != this_option_optind)

printf ("digits occur in two different argv-elements.\n");

digit_optind = this_option_optind;

printf ("option %c\n", c);

break;

case 'a':

printf ("option a\n");

break;

case 'b':

printf ("option b\n");

break;

case 'c':

printf ("option c with value `%s'\n", optarg);

break;

case 'd':

printf ("option d with value `%s'\n", optarg);

break;

case '?':

break;

default:

printf ("?? getopt returned character code 0%o ??\n", c);

}

}

if (optind < argc)

{

printf ("non-option ARGV-elements: ");

while (optind < argc)

printf ("%s ", argv[optind++]);

printf ("\n");

}

exit (0);

}

#endif /* TEST */