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