/// <summary>
/// Checks the CRC of the incomming packet
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <returns></returns>
private static bool CheckCRC(byte[] buffer, int offset, int count)
{
uint packetCrc = BitConverter.ToUInt32(buffer, offset + 8);
for (int i = offset + 8; i < offset + 12; i++)
{
buffer[i] = 0;
}
uint crc = CRC32c.GetCRC(buffer, offset, count);
return(packetCrc == crc);
}
/// <summary>
/// Updates the packets CRC.
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
private void UpdateCRC(byte[] buffer, int offset, int count)
{
uint crc = CRC32c.GetCRC(buffer, offset, count);
Buffer.BlockCopy(BitConverter.GetBytes(crc), 0, buffer, offset + 8, 4);
}