1272343Sngie/* $NetBSD: exec_prot_support.c,v 1.2 2012/03/16 08:51:47 matt Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2012 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Matt Thomas of 3am Software Foundry. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie 32272343Sngie#include <sys/cdefs.h> 33272343Sngie__RCSID("$NetBSD: exec_prot_support.c,v 1.2 2012/03/16 08:51:47 matt Exp $"); 34272343Sngie 35272343Sngie#include "../../common/exec_prot.h" 36272343Sngie 37272343Sngie#include <sys/sysctl.h> 38272343Sngie 39272343Sngieint 40272343Sngieexec_prot_support(void) 41272343Sngie{ 42272343Sngie int execprot = 0; 43272343Sngie size_t len = sizeof(execprot); 44272343Sngie 45272343Sngie if (sysctlbyname("machdep.execprot", &execprot, &len, NULL, 0) < 0) 46272343Sngie return NOTIMPL; 47272343Sngie 48272343Sngie if (execprot) 49272343Sngie return PERPAGE_XP; 50272343Sngie 51272343Sngie return NO_XP; 52272343Sngie} 53