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QString convToHex( unsigned char *bytes, int size )
{
if( size > 16 )
size = 16;
QString ret;
for( int i = 0; i < size; i++ )
{
char buf[64];
::snprintf( buf, sizeof(buf), "%02x", (unsigned int) bytes[i] );
ret += buf;
}
return ret;
}
QString TarCreator::generateGuid( const std::string &tDeviceSerial,
const std::string &nDatetime, unsigned long long int id )
{
std::ostringstream s;
s << tDeviceSerial;
s << nDatetime;
s << id;
QCryptographicHash hash( QCryptographicHash::Md5 );
hash.addData( QByteArray( s.str().c_str() ) );
QByteArray result = hash.result();
return convToHex( (unsigned char*)result.data(), result.size() );
}