private void isAliveTCP(ref IsAlivePayload payload)
{
TcpClient myclient = new TcpClient();
myclient.SendTimeout = _timeOut;
myclient.ReceiveTimeout = _timeOut;
try
{
if (!myclient.ConnectAsync(payload.host, payload.port).Wait(_timeOut))
{
payload.errorMessage = "Timeout";
}
else
{
payload.success = true;
}
}
catch (Exception ex)
{
payload.errorMessage = ex.ToString();
}
finally
{
myclient.Close();
}
}
private void isAliveICMP(ref IsAlivePayload payload)
{
Ping myping = new Ping();
try
{
PingReply replay = myping.Send(payload.host, 2000);
if (replay == null)
{
payload.errorMessage = "Replay Empty";
}
else if (replay.Status == IPStatus.Success)
{
payload.success = true;
}
else
{
payload.errorMessage = replay.Status.ToString();
}
}
catch (Exception ex)
{
payload.errorMessage = ex.ToString();
}
}
private void isAliveUDP(ref IsAlivePayload payload)
{
UdpClient myclient = new UdpClient();
try
{
myclient.Client.SendTimeout = _timeOut;
myclient.Client.ReceiveTimeout = _timeOut;
myclient.Connect(payload.host, payload.port);
Byte[] sendBytes = Encoding.ASCII.GetBytes("Is anybody there");
int count = myclient.Send(sendBytes, sendBytes.Length);
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
Byte[] receiveBytes = myclient.Receive(ref RemoteIpEndPoint);
string returnData = Encoding.ASCII.GetString(receiveBytes);
if (returnData.Length != 0)
{
payload.success = true;
}
else
{
payload.errorMessage = "Package Sent No Message Received";
}
}
catch (Exception ex)
{
payload.errorMessage = ex.ToString();
}
finally
{
myclient.Close();
}
}
public IsAlivePayload check(IPAddress address, int port, NETWORK_PROTOCOL protocol)
{
IsAlivePayload payload = new IsAlivePayload();
payload.host = address;
payload.port = port;
payload.protocol = protocol;
Stopwatch watch = new Stopwatch();
watch.Start();
switch (protocol)
{
case NETWORK_PROTOCOL.TCP:
isAliveTCP(ref payload);
break;
case NETWORK_PROTOCOL.UDP:
isAliveUDP(ref payload);
break;
case NETWORK_PROTOCOL.ICMP:
isAliveICMP(ref payload);
break;
default:
payload.errorMessage = "Unsupported Protocol";
break;
}
watch.Stop();
payload.totalTime = watch.Elapsed;
return(payload);
}
