public static int TxAppPack(byte[] txBuf, int Length)
{
int num = 200;
byte[] numArray = new byte[272];
Console.WriteLine("This is a Client, host name is {0}", (object)Dns.GetHostName());
IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Parse(Convert.ToString(FormMain.sCommuAtt.IP0) + (object)'.' + Convert.ToString(FormMain.sCommuAtt.IP1) + (object)'.' + Convert.ToString(FormMain.sCommuAtt.IP2) + (object)'.' + Convert.ToString(FormMain.sCommuAtt.IP3)), FormMain.sCommuAtt.Port);
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
if (Length > num)
{
return(1);
}
int commuPack = ProtocolDevIo.CreateCommuPack(numArray, txBuf, Convert.ToByte(FormMain.sCommuAtt.ScreenId), Convert.ToByte(FormMain.sCommuAtt.ComNo), Convert.ToByte(Length));
socket.SendTo(numArray, commuPack, SocketFlags.None, (EndPoint)ipEndPoint);
EndPoint remoteEP = (EndPoint) new IPEndPoint(IPAddress.Any, 0);
socket.ReceiveTimeout = 3;
try
{
int from = socket.ReceiveFrom(CommuUdp.EthentRxBuf, ref remoteEP);
socket.Close();
if (from <= 7 || !ProtocolDevIo.CheckCommuPack(CommuUdp.EthentRxBuf, from))
{
return(1);
}
return(CommuUdp.EthentRxBuf[4] == (byte)0 ? 0 : -1);
}
catch
{
socket.Close();
return(1);
}
}
public static void ReceiveMessage(IAsyncResult ar)
{
try
{
Socket asyncState = ar.AsyncState as Socket;
int Length = asyncState.EndReceive(ar);
CommuTcp.RxRes = !ProtocolDevIo.CheckCommuPack(CommuTcp.EthentRxBuf, Length) ? 1 : (CommuTcp.EthentRxBuf[4] != (byte)0 ? -1 : 0);
asyncState.BeginReceive(CommuTcp.EthentRxBuf, 0, CommuTcp.EthentRxBuf.Length, SocketFlags.None, new AsyncCallback(CommuTcp.ReceiveMessage), (object)asyncState);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}