Libc-1244.1.7.tar.gz

[apple/libc.git] / include / secure / _common.h

/*
 * Copyright (c) 2007, 2008 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef _SECURE__COMMON_H_
#define _SECURE__COMMON_H_

#undef _USE_FORTIFY_LEVEL
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0
#  if _FORTIFY_SOURCE > 1
#    define _USE_FORTIFY_LEVEL 2
#  else
#    define _USE_FORTIFY_LEVEL 1
#  endif
#else
#  define _USE_FORTIFY_LEVEL 0
#endif

#define __darwin_obsz0(object) __builtin_object_size (object, 0)
#define __darwin_obsz(object) __builtin_object_size (object, _USE_FORTIFY_LEVEL > 1 ? 1 : 0)

#endif