1178476Sjb/* 2178476Sjb * CDDL HEADER START 3178476Sjb * 4178476Sjb * The contents of this file are subject to the terms of the 5178476Sjb * Common Development and Distribution License (the "License"). 6178476Sjb * You may not use this file except in compliance with the License. 7178476Sjb * 8178476Sjb * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9178476Sjb * or http://www.opensolaris.org/os/licensing. 10178476Sjb * See the License for the specific language governing permissions 11178476Sjb * and limitations under the License. 12178476Sjb * 13178476Sjb * When distributing Covered Code, include this CDDL HEADER in each 14178476Sjb * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15178476Sjb * If applicable, add the following below this CDDL HEADER, with the 16178476Sjb * fields enclosed by brackets "[]" replaced with your own identifying 17178476Sjb * information: Portions Copyright [yyyy] [name of copyright owner] 18178476Sjb * 19178476Sjb * CDDL HEADER END 20178476Sjb */ 21178476Sjb 22178476Sjb/* 23178476Sjb * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24178476Sjb * Use is subject to license terms. 25178476Sjb */ 26178476Sjb 27178476Sjb#pragma ident "%Z%%M% %I% %E% SMI" 28178476Sjb 29178476Sjb/* 30178476Sjb * Test that there is no value of 'size' which can be passed to copyin 31178476Sjb * to cause mischief. The somewhat odd order of operations ensures 32178476Sjb * that we test both size = 0 and size = 0xfff...fff 33178476Sjb */ 34178476Sjb#include <sys/types.h> 35178476Sjb 36178476Sjb 37178476Sjb#if defined(_LP64) 38178476Sjb#define MAX_BITS 63 39178476Sjbsize_t size; 40178476Sjb#else 41178476Sjb#define MAX_BITS 31 42178476Sjbsize_t size; 43178476Sjb#endif 44178476Sjb 45178476Sjbsyscall::: 46178476Sjb/pid == $pid/ 47178476Sjb{ 48178476Sjb printf("size = 0x%lx\n", (ulong_t)size); 49178476Sjb} 50178476Sjb 51178476Sjbsyscall::: 52178476Sjb/pid == $pid/ 53178476Sjb{ 54178476Sjb tracemem(copyin(curthread->t_procp->p_user.u_envp, size), 10); 55178476Sjb} 56178476Sjb 57178476Sjbsyscall::: 58178476Sjb/pid == $pid && size > (1 << MAX_BITS)/ 59178476Sjb{ 60178476Sjb exit(0); 61178476Sjb} 62178476Sjb 63178476Sjbsyscall::: 64178476Sjb/pid == $pid/ 65178476Sjb{ 66178476Sjb size = (size << 1ULL) | 1ULL; 67178476Sjb} 68