Read packet from QTcpSocket

? Offline

Hello... I would like to read a packet from QTcpSocket... I have successfully connected with server which is supposed to send a packet... I must read and parse that packed... How can I read it and parse it?

Packet example:
25 00 00 50 00 00 0E 70 82 27 11 5B 5F E5 28 E6
00 00 00 BF 00 00 00 8F 44 3E 0F DA 32 6B 2B 7F
FF C6 03 A3 25 1D 0C EF 6A BE 00

Parsed:
[25 00] - Size
[00 50] - Opcode
[00] - Security Count
[00] - Security Crc
[0E] - Flag
[70 82 27 11 5B 5F E5 28] - Blowfish
[E6 00 00 00] - Count Seed
[BF 00 00 00] - CRC Seed
[8F 44 3E 0F] - Seed 1
[DA 32 6B 2B] - Seed 2
[7F FF C6 03] - Seed 3
[A3 25 1D 0C] - Seed 4
[EF 6A BE 00] - Seed 5

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I tried to read data with following code but it always crash at memmove...

@
private:
char recvBuffer[8192];
int recvIndex;@

@void MainWindow::readData()
{
QDataStream in(sSocket);
in.setVersion(QDataStream::Qt_5_2);

// Get the number of bytes available
int bytesAvailable = sSocket->bytesAvailable();

// Read data
in.readRawData(recvBuffer + recvIndex, 8192 - recvIndex);

// Processing data
int bytesProcessed = 0;
recvIndex += bytesAvailable;

do {
bytesProcessed = onData(recvBuffer, recvIndex);

  if(bytesProcessed == 0)
    {
    }
  else if(bytesProcessed == recvIndex)
    {
     recvIndex = 0;
    }
  else
    {
      memmove(recvBuffer, recvBuffer + bytesProcessed, recvIndex - bytesProcessed); // App crashes here

      recvIndex -= bytesProcessed;
    }
}

while(bytesProcessed && recvIndex);
}@