cocos2d-x 文件MD5校验(12)

来源：未知责任编辑：责任编辑发表时间:2013-11-15 19:49　点击:次

p> memcpy( &m_lpszBuffer[nIndex], Input, nPartLen );

p> Transform( m_lpszBuffer );

p> for (i = nPartLen; i + 63 < nInputLen; i += 64)

p> {

p> Transform( &Input[i] );

p> }

p> nIndex = 0;

p> }

p> else

p> {

p> i = 0;

p> }

p> // Buffer remaining input

p> memcpy( &m_lpszBuffer[nIndex], &Input[i], nInputLen-i);

p>}

p>std::string CMD5Checksum::GetMD5OfString(std::string strString)

p>{

p> CMD5Checksum MD5Checksum; //checksum object

p> int nLength = strString.length(); //number of bytes read from the file

p> //const int nBufferSize = 1024; //checksum the file in blocks of 1024 bytes

p> BYTE *Buffer; //buffer for data read from the file

p> Buffer=(BYTE*)(strString.c_str());

p> //checksum the file in blocks of 1024 bytes

p> //while ((nLength = File.Read( Buffer, nBufferSize )) > 0 )

p> //{

p> MD5Checksum.Update( Buffer, nLength );

p> //}

p> //finalise the checksum and return it

p> return MD5Checksum.Final();

p>}

p>使用方法

p>[cpp]

p>std::string pszPath = CCFileUtils::sharedFileUtils()->getWritablePath()+"data.zip";

p> std::string strFileMD5 = CMD5Checksum::GetMD5(pszPath);