void TimeSync::getNTPTime()
{
QUdpSocket sock;
sock.connectToHost("0.pool.ntp.org",123);
if(!sock.waitForConnected(1000))return;
QByteArray data(48,char(0)); *(reinterpret_cast<qint32 *>(&data.data()[0]))=4194959577;
if(sock.write(data)<0||!sock.waitForReadyRead(3000)||sock.bytesAvailable()!=48)return;
data=sock.readAll();
quint32 seconds=qToBigEndian(*(reinterpret_cast<quint32 *>(&data.data()[40])));
quint32 fraction=qToBigEndian(*(reinterpret_cast<quint32 *>(&data.data()[44])));
quint32 newTime=QDateTime::fromMSecsSinceEpoch(seconds*1000ll+fraction*1000ll/0x100000000ll-2208988800000ll).toTime_t();
if(newTime<1451606400 || newTime>4000000000){
QThread::msleep(500);
emit startSync();
return;
}
qint32 tempTimeShift=qint64(newTime)-qint64(QDateTime::currentDateTime().toTime_t());
if(timeShift!=0)tempTimeShift=qint32((qint64(timeShift)+qint64(tempTimeShift))/2);
if(tempTimeShift>3600 || tempTimeShift<-3600){
static bool showMessage=true;
if(showMessage)emit warningMessage(julyTr("TIME_SYNC_ERROR","Your clock is not set. Please close the Qt Bitcoin Trader and set the clock. Changing time at Qt Bitcoin Trader enabled can cause errors and damage the keys."));
showMessage=false;
}
else
timeShift.fetchAndStoreOrdered(tempTimeShift);
getNTPTimeRetryCount++;
if(getNTPTimeRetryCount<3)emit startSync();
}
