Add more support for FreeBSD

base/sys_byteorder.h

 // Copyright (c) 2012 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.
 
 // This header defines cross-platform ByteSwap() implementations for 16, 32 and
 // 64-bit values, and NetToHostXX() / HostToNextXX() functions equivalent to
 // the traditional ntohX() and htonX() functions.
 // Use the functions defined here rather than using the platform-specific
 // functions directly.
 
 #ifndef BASE_SYS_BYTEORDER_H_
 #define BASE_SYS_BYTEORDER_H_
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <winsock2.h>
 #else
 #include <arpa/inet.h>
 #endif
 
 // Include headers to provide byteswap for all platforms.
 #if defined(COMPILER_MSVC)
 #include <stdlib.h>
 #elif defined(OS_MACOSX)
 #include <libkern/OSByteOrder.h>
-#elif defined(OS_OPENBSD)
+#elif defined(OS_BSD)
 #include <sys/endian.h>
 #else
 #include <byteswap.h>
 #endif
 
 
 namespace base {
 
 // Returns a value with all bytes in |x| swapped, i.e. reverses the endianness.
 inline uint16 ByteSwap(uint16 x) {
 #if defined(COMPILER_MSVC)
   return _byteswap_ushort(x);
 #elif defined(OS_MACOSX)
   return OSSwapInt16(x);
 #elif defined(OS_OPENBSD)
   return swap16(x);
+#elif defined(OS_FREEBSD)
+  return bswap16(x);
 #else
   return bswap_16(x);
 #endif
 }
 inline uint32 ByteSwap(uint32 x) {
 #if defined(COMPILER_MSVC)
   return _byteswap_ulong(x);
 #elif defined(OS_MACOSX)
   return OSSwapInt32(x);
 #elif defined(OS_OPENBSD)
   return swap32(x);
+#elif defined(OS_FREEBSD)
+  return bswap32(x);
 #else
   return bswap_32(x);
 #endif
 }
 inline uint64 ByteSwap(uint64 x) {
 #if defined(COMPILER_MSVC)
   return _byteswap_uint64(x);
 #elif defined(OS_MACOSX)
   return OSSwapInt64(x);
 #elif defined(OS_OPENBSD)
   return swap64(x);
+#elif defined(OS_FREEBSD)
+  return bswap64(x);
 #else
   return bswap_64(x);
 #endif
 }
 
 // Converts the bytes in |x| from host order (endianness) to little endian, and
 // returns the result.
 inline uint16 ByteSwapToLE16(uint16 x) {
 #if defined(ARCH_CPU_LITTLE_ENDIAN)
   return x;
@@ skipping 61 matching lines @@
   return ByteSwap(x);
 #else
   return x;
 #endif
 }
 
 }  // namespace base
 
 
 #endif  // BASE_SYS_BYTEORDER_H_