1/* 2 * Copyright (c) 2005, 2006 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23#include <signal.h> 24#include <errno.h> 25 26int __sigaltstack(const stack_t * __restrict, stack_t * __restrict); 27 28/* UNIX03 only */ 29int sigaltstack(const stack_t * __restrict nstack, stack_t * __restrict ostack) 30{ 31 if (nstack && nstack->ss_size < MINSIGSTKSZ) { 32 errno = ENOMEM; 33 return -1; 34 } 35 return __sigaltstack(nstack, ostack); 36} 37