HardenedBSD/test-getsubopt.c

/*	$Id: test-getsubopt.c,v 1.3 2014/08/17 20:53:50 schwarze Exp $	*/
/*
 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#if defined(__linux__) || defined(__MINT__)
#define _GNU_SOURCE /* getsubopt() */
#endif

#include <stdlib.h>

int
main(void)
{
	char buf[] = "k=v";
	char *options = buf;
	char token0[] = "k";
	char *const tokens[] = { token0, NULL };
	char *value = NULL;
	return( ! (0 == getsubopt(&options, tokens, &value)
	    && value == buf+2 && options == buf+3));
}