1/* 2* Copyright (C) 2012 Google Inc. All rights reserved. 3* 4* Redistribution and use in source and binary forms, with or without 5* modification, are permitted provided that the following conditions are 6* met: 7* 8* * Redistributions of source code must retain the above copyright 9* notice, this list of conditions and the following disclaimer. 10* * Redistributions in binary form must reproduce the above 11* copyright notice, this list of conditions and the following disclaimer 12* in the documentation and/or other materials provided with the 13* distribution. 14* * Neither the name of Google Inc. nor the names of its 15* contributors may be used to endorse or promote products derived from 16* this software without specific prior written permission. 17* 18* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29*/ 30 31#ifndef WTF_ByteOrder_h 32#define WTF_ByteOrder_h 33 34#if OS(POSIX) 35#include <arpa/inet.h> 36#endif 37 38#if OS(WIN) 39 40#include "wtf/ByteSwap.h" 41#include "wtf/CPU.h" 42 43#if CPU(BIG_ENDIAN) 44inline uint16_t ntohs(uint16_t x) { return x; } 45inline uint16_t htons(uint16_t x) { return x; } 46inline uint32_t ntohl(uint32_t x) { return x; } 47inline uint32_t htonl(uint32_t x) { return x; } 48#elif CPU(MIDDLE_ENDIAN) 49inline uint16_t ntohs(uint16_t x) { return x; } 50inline uint16_t htons(uint16_t x) { return x; } 51inline uint32_t ntohl(uint32_t x) { return WTF::wswap32(x); } 52inline uint32_t htonl(uint32_t x) { return WTF::wswap32(x); } 53#else 54inline uint16_t ntohs(uint16_t x) { return WTF::bswap16(x); } 55inline uint16_t htons(uint16_t x) { return WTF::bswap16(x); } 56inline uint32_t ntohl(uint32_t x) { return WTF::bswap32(x); } 57inline uint32_t htonl(uint32_t x) { return WTF::bswap32(x); } 58#endif 59 60#endif // OS(WIN) 61 62#endif // WTF_ByteOrder_h 63