public static byte[] Handshake(string clientName, byte[] info_hash, string peer_id)
{
PacketGenerator rs = new PacketGenerator();
byte[] reservedBytes = { 0, 0, 0, 0, 0, 0, 0, 0 };
rs.WriteByte(Convert.ToByte(clientName.Length));
rs.WriteString(clientName);
rs.WriteByteArray(reservedBytes);
rs.WriteByteArray(info_hash);
rs.WriteString(peer_id);
return(rs.GetByteArray());
}