/* getopt_long and getopt_long_only entry points for GNU getopt.
 * Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
 * Free Software Foundation, Inc.
 * This file is part of the GNU C Library.
 * 
 * The GNU C Library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * The GNU C Library 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
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with the GNU C Library; see the file COPYING.LIB.  If not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.  */

#include "config.h"
#include "getopt.h"

#if !defined __STDC__ || !__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.  */

#define GETOPT_INTERFACE_VERSION 2
#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
#include <gnu-versions.h>
#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
#define ELIDE_CODE
#endif
#endif

#ifndef ELIDE_CODE

/* This needs to come after some library #include
 * to get __GNU_LIBRARY__ defined.  */
#ifdef __GNU_LIBRARY__
#include <stdlib.h>
#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 /* Not ELIDE_CODE.  */

#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 == -1)
	    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 */