| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WTF_ByteOrder_h |
| #define WTF_ByteOrder_h |
| |
| #include <wtf/Platform.h> |
| |
| #if OS(UNIX) |
| #include <arpa/inet.h> |
| #endif |
| |
| #if OS(WINDOWS) |
| |
| namespace WTF { |
| inline uint32_t wswap32(uint32_t x) { return ((x & 0xffff0000) >> 16) | ((x & 0x0000ffff) << 16); } |
| inline uint32_t bswap32(uint32_t x) { return ((x & 0xff000000) >> 24) | ((x & 0x00ff0000) >> 8) | ((x & 0x0000ff00) << 8) | ((x & 0x000000ff) << 24); } |
| inline uint16_t bswap16(uint16_t x) { return ((x & 0xff00) >> 8) | ((x & 0x00ff) << 8); } |
| } // namespace WTF |
| |
| #if CPU(BIG_ENDIAN) |
| inline uint16_t ntohs(uint16_t x) { return x; } |
| inline uint16_t htons(uint16_t x) { return x; } |
| inline uint32_t ntohl(uint32_t x) { return x; } |
| inline uint32_t htonl(uint32_t x) { return x; } |
| #elif CPU(MIDDLE_ENDIAN) |
| inline uint16_t ntohs(unit16_t x) { return x; } |
| inline uint16_t htons(uint16_t x) { return x; } |
| inline uint32_t ntohl(uint32_t x) { return WTF::wswap32(x); } |
| inline uint32_t htonl(uint32_t x) { return WTF::wswap32(x); } |
| #else |
| inline uint16_t ntohs(uint16_t x) { return WTF::bswap16(x); } |
| inline uint16_t htons(uint16_t x) { return WTF::bswap16(x); } |
| inline uint32_t ntohl(uint32_t x) { return WTF::bswap32(x); } |
| inline uint32_t htonl(uint32_t x) { return WTF::bswap32(x); } |
| #endif |
| |
| #endif // OS(WINDOWS) |
| |
| #endif // WTF_ByteOrder_h |
