xref: /aosp_15_r20/external/ltp/lib/tst_get_bad_addr.c (revision 49cdfc7efb34551c7342be41a7384b9c40d7cab7)

/*
 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
 *
 * 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 of the License, 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, see <http://www.gnu.org/licenses/>.
 */

#include <sys/mman.h>
#include "test.h"
#include "tst_get_bad_addr.h"

void *tst_get_bad_addr(void (*cleanup_fn) (void))
{
	void *bad_addr;

	bad_addr = mmap(0, 1, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
	if (bad_addr == MAP_FAILED)
		tst_brkm(TBROK, cleanup_fn, "mmap() failed to get bad address");

	return bad_addr;
}