private void DoReceiveFrom(IAsyncResult iar)
{
//Get the received message.
Socket recvSock = (Socket)iar.AsyncState;
EndPoint clientEP = new IPEndPoint(IPAddress.Any, 0);
int msgLen = recvSock.EndReceiveFrom(iar, ref clientEP);
byte[] localMsg = new byte[msgLen];
Array.Copy(buffer, localMsg, msgLen);
//Start listening for a new message.
EndPoint newClientEP = new IPEndPoint(IPAddress.Any, 0);
udpSock.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags.None, ref newClientEP, DoReceiveFrom, udpSock);
// Found our client
if (origin == null || (origin.Port != ((IPEndPoint)clientEP).Port) && ((IPEndPoint)clientEP).Address.Equals(origin.Address))
{
if (origin != null)
{
Console.WriteLine("[Info] Found new client, did the old one get disconnected?");
}
else
{
Console.WriteLine("[Info] Found new client");
}
origin = (IPEndPoint)clientEP;
}
// Message is C -> S
if (((IPEndPoint)clientEP).Address.Equals(origin.Address))
{
udpSock.SendTo(localMsg, destination);
}
// Message is S -> C
else
{
switch (localMsg[1])
{
case 2: // SOE_SESSION_REPLY
byte[] crcSeed = new byte[4];
Array.Copy(localMsg, 6, crcSeed, 0, 4);
Program.session = new Session(crcSeed);
break;
case 9: // SOE_CHL_DATA_A
SOEPacket packet = new SOEPacket(localMsg);
Console.WriteLine("[Debug] Packet " + (localMsg.SequenceEqual(packet.ToArray()) ? "succesfully" : "unsuccessfully") + " rebuilt");
localMsg = packet.ToArray();
break;
default:
Console.WriteLine("[Debug] Unknown SOE opcode: {0}", localMsg[1]);
break;
}
udpSock.SendTo(localMsg, origin);
}
}
