public TcpClient Connect(string host, int StartPort, int timeOut)
{
var newclient = new TcpClient();
var state = new isTCPPortOpen
{
Client = newclient,
tcpOpen = true
};
IAsyncResult ar = newclient.BeginConnect(host, StartPort, AsyncCallback, state);
state.tcpOpen = ar.AsyncWaitHandle.WaitOne(timeOut, false);
if (state.tcpOpen == true)
{
richTextBox2.Text = richTextBox2.Text + "\n TCP Port is Open and the Port Number Is" + StartPort.ToString();
Application.DoEvents();
}
if (state.tcpOpen == false)
{
richTextBox1.Text = richTextBox1.Text + "\n TCP Port" + StartPort.ToString() + "is not avaolable for access";
Application.DoEvents();
throw new Exception();
}
return(newclient);
}
public TcpClient Connect(string host, int StartPort, int timeOut)
{
var newclient = new TcpClient();
var state = new isTCPPortOpen
{
Client = newclient, tcpOpen = true
};
//Asynchronous request for the ports to check whether its open or not.
IAsyncResult ar = newclient.BeginConnect(host, StartPort, AsyncCallback, state);
state.tcpOpen = ar.AsyncWaitHandle.WaitOne(timeOut, false);
if (state.tcpOpen == true)
{
//Find for vulnerable ports.
richTextBox2.Text = richTextBox2.Text + "\n TCP Port is open and the port number is " + StartPort.ToString();
Application.DoEvents();
//Prinitng the data immediately.
}
if (state.tcpOpen == false)
{
////Find for non-vulnerable ports.
richTextBox2.Text = richTextBox1.Text + "\n TCP Port " + StartPort.ToString() + " is not available for access.";
Application.DoEvents();
//Prinitng the data immediately.
throw new Exception();
}
return(newclient);
}
