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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * Test that there is no value of 'size' which can be passed to copyin
31 * to cause mischief.  The somewhat odd order of operations ensures
32 * that we test both size = 0 and size = 0xfff...fff
33 */
34#include <sys/types.h>
35
36
37#if defined(_LP64)
38#define MAX_BITS 63
39size_t size;
40#else
41#define MAX_BITS 31
42size_t size;
43#endif
44
45syscall:::
46/pid == $pid/
47{
48	printf("size = 0x%lx\n", (ulong_t)size);
49}
50
51syscall:::
52/pid == $pid/
53{
54	tracemem(copyin(curthread->t_procp->p_user.u_envp, size), 10);
55}
56
57syscall:::
58/pid == $pid && size > (1 << MAX_BITS)/
59{
60	exit(0);
61}
62
63syscall:::
64/pid == $pid/
65{
66	size = (size << 1ULL) | 1ULL;
67}
68