Libc-498.tar.gz

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

diff --git a/include/secure/_common.h b/include/secure/_common.h
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+++ b/include/secure/_common.h
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+/*
+ * Copyright (c) 2007 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
+#ifdef _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)
+
+#endif