1*2be1a816SJohn Birrell /* 2*2be1a816SJohn Birrell * CDDL HEADER START 3*2be1a816SJohn Birrell * 4*2be1a816SJohn Birrell * The contents of this file are subject to the terms of the 5*2be1a816SJohn Birrell * Common Development and Distribution License (the "License"). 6*2be1a816SJohn Birrell * You may not use this file except in compliance with the License. 7*2be1a816SJohn Birrell * 8*2be1a816SJohn Birrell * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*2be1a816SJohn Birrell * or http://www.opensolaris.org/os/licensing. 10*2be1a816SJohn Birrell * See the License for the specific language governing permissions 11*2be1a816SJohn Birrell * and limitations under the License. 12*2be1a816SJohn Birrell * 13*2be1a816SJohn Birrell * When distributing Covered Code, include this CDDL HEADER in each 14*2be1a816SJohn Birrell * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*2be1a816SJohn Birrell * If applicable, add the following below this CDDL HEADER, with the 16*2be1a816SJohn Birrell * fields enclosed by brackets "[]" replaced with your own identifying 17*2be1a816SJohn Birrell * information: Portions Copyright [yyyy] [name of copyright owner] 18*2be1a816SJohn Birrell * 19*2be1a816SJohn Birrell * CDDL HEADER END 20*2be1a816SJohn Birrell */ 21*2be1a816SJohn Birrell 22*2be1a816SJohn Birrell /* 23*2be1a816SJohn Birrell * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*2be1a816SJohn Birrell * Use is subject to license terms. 25*2be1a816SJohn Birrell */ 26*2be1a816SJohn Birrell 27*2be1a816SJohn Birrell #pragma ident "%Z%%M% %I% %E% SMI" 28*2be1a816SJohn Birrell 29*2be1a816SJohn Birrell /* 30*2be1a816SJohn Birrell * Test that there is no value of 'size' which can be passed to copyin 31*2be1a816SJohn Birrell * to cause mischief. The somewhat odd order of operations ensures 32*2be1a816SJohn Birrell * that we test both size = 0 and size = 0xfff...fff 33*2be1a816SJohn Birrell */ 34*2be1a816SJohn Birrell #include <sys/types.h> 35*2be1a816SJohn Birrell 36*2be1a816SJohn Birrell 37*2be1a816SJohn Birrell #if defined(_LP64) 38*2be1a816SJohn Birrell #define MAX_BITS 63 39*2be1a816SJohn Birrell size_t size; 40*2be1a816SJohn Birrell #else 41*2be1a816SJohn Birrell #define MAX_BITS 31 42*2be1a816SJohn Birrell size_t size; 43*2be1a816SJohn Birrell #endif 44*2be1a816SJohn Birrell 45*2be1a816SJohn Birrell syscall::: 46*2be1a816SJohn Birrell /pid == $pid/ 47*2be1a816SJohn Birrell { 48*2be1a816SJohn Birrell printf("size = 0x%lx\n", (ulong_t)size); 49*2be1a816SJohn Birrell } 50*2be1a816SJohn Birrell 51*2be1a816SJohn Birrell syscall::: 52*2be1a816SJohn Birrell /pid == $pid/ 53*2be1a816SJohn Birrell { 54*2be1a816SJohn Birrell tracemem(copyin(curthread->t_procp->p_user.u_envp, size), 10); 55*2be1a816SJohn Birrell } 56*2be1a816SJohn Birrell 57*2be1a816SJohn Birrell syscall::: 58*2be1a816SJohn Birrell /pid == $pid && size > (1 << MAX_BITS)/ 59*2be1a816SJohn Birrell { 60*2be1a816SJohn Birrell exit(0); 61*2be1a816SJohn Birrell } 62*2be1a816SJohn Birrell 63*2be1a816SJohn Birrell syscall::: 64*2be1a816SJohn Birrell /pid == $pid/ 65*2be1a816SJohn Birrell { 66*2be1a816SJohn Birrell size = (size << 1ULL) | 1ULL; 67*2be1a816SJohn Birrell } 68