courgette/crc.cc

   1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Calculate Crc by calling CRC method in LZMA SDK
   6
   7 #include "courgette/crc.h"
   8
   9 extern "C" {
  10 #include "third_party/lzma_sdk/7zCrc.h"
  11 }
  12
  13 namespace courgette {
  14
  15 uint32 CalculateCrc(const uint8* buffer, size_t size) {
  16   CrcGenerateTable();
  17   uint32 crc = 0xffffffffL;
  18   crc = ~CrcCalc(buffer, size);
  19   return crc;
  20 }
  21
  22 }  // namespace