1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1998 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include "mtmalloc.h"
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate /*
33*0Sstevel@tonic-gate * test double free. The first double free should be fine.
34*0Sstevel@tonic-gate * the next double free should result in a core dump.
35*0Sstevel@tonic-gate *
36*0Sstevel@tonic-gate * cc -O -o dblfree dblfree.c -I../common -lmtmalloc
37*0Sstevel@tonic-gate */
38*0Sstevel@tonic-gate
main(int argc,char ** argv)39*0Sstevel@tonic-gate main(int argc, char ** argv)
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate char *foo;
42*0Sstevel@tonic-gate
43*0Sstevel@tonic-gate foo = malloc(10);
44*0Sstevel@tonic-gate free(foo);
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate mallocctl(MTDOUBLEFREE, 1);
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate printf("Double free coming up\n");
49*0Sstevel@tonic-gate printf("This should NOT dump core.\n");
50*0Sstevel@tonic-gate free(foo);
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate foo = malloc(10);
53*0Sstevel@tonic-gate free(foo);
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate mallocctl(MTDOUBLEFREE, 0);
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate printf("Double free coming up\n");
58*0Sstevel@tonic-gate printf("This should dump core.\n");
59*0Sstevel@tonic-gate
60*0Sstevel@tonic-gate free(foo);
61*0Sstevel@tonic-gate }
62