1 files changed, 39 insertions, 0 deletions
diff --git a/chrome/utility/safe_browsing/mac/convert_big_endian.h b/chrome/utility/safe_browsing/mac/convert_big_endian.h
new file mode 100644
index 0000000..00a648e
--- /dev/null
+++ b/chrome/utility/safe_browsing/mac/convert_big_endian.h
@@ -0,0 +1,39 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_UTILITY_SAFE_BROWSING_MAC_CONVERT_BIG_ENDIAN_H_
+#define CHROME_UTILITY_SAFE_BROWSING_MAC_CONVERT_BIG_ENDIAN_H_
+
+#include <libkern/OSByteOrder.h>
+#include <sys/types.h>
+
+// This file contains byte swapping routines for use in safe_browsing::dmg. The
+// pattern is to use type-based overloading of the form ConvertBigEndian(T*) to
+// swap all structures from big-endian to host-endian. This file provides the
+// implementations for scalars, which are inlined since the OSSwap functions
+// themselves are macros that call compiler intrinsics.
+
+namespace safe_browsing {
+namespace dmg {
+
+inline void ConvertBigEndian(uint16_t* x) {
+  *x = OSSwapBigToHostInt16(*x);
+}
+
+inline void ConvertBigEndian(int16_t* x) {
+  *x = OSSwapBigToHostInt16(*x);
+}
+
+inline void ConvertBigEndian(uint32_t* x) {
+  *x = OSSwapBigToHostInt32(*x);
+}
+
+inline void ConvertBigEndian(uint64_t* x) {
+  *x = OSSwapBigToHostInt64(*x);
+}
+
+}  // namespace dmg
+}  // namespace safe_browsing
+
+#endif  // CHROME_UTILITY_SAFE_BROWSING_MAC_CONVERT_BIG_ENDIAN_H_