PortScanner -with GUI
nandu
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.border .*;
import java.awt.*;
import java.io.*;
import java.applet.*;
import javax.swing.JPopupMenu;
import javax.swing.border.BevelBorder;
import javax.swing.event.PopupMenuEvent;
class PortScanner1 extends JFrame
{ JButton check,cancel;
JTextField textfield1,textfield2,textfield3;
JTextArea output;
JScrollPane scrollpane;
JLabel label1,label2,label3;
PortScanner1()
{ setLayout(new FlowLayout()) ;
check = new JButton("Scan");
label1= new JLabel("Enter first PORT");
label1.setForeground(Color.white);
label2= new JLabel("Enter second PORT");
label2.setForeground(Color.white);
label3= new JLabel("Enter IP");
label3.setForeground(Color.white);
textfield1= new JTextField(10);
textfield2= new JTextField(10);
textfield3= new JTextField(10);
output = new JTextArea("\n",20,30);
output.setBackground(Color.yellow);
// output.setBorder(Border.MetalBorders.Flush3DBorder);
scrollpane = new JScrollPane(output);
add(label1);
add(textfield1);
add(label2);
add(textfield2);
add(label3);
add(textfield3);
add(check);
add(scrollpane);
getContentPane().setBackground(Color.black);
clickHandler obj = new clickHandler();
check.addActionListener(obj);
// cancel.addActionListener(obj);
}
private class clickHandler implements ActionListener
{
public void actionPerformed(ActionEvent eg)
{
if(eg.getSource()==check)
{ Runnable r = new myHandler();
Thread t = new Thread(r);
t.start();
}
if(eg.getSource()==cancel)
{
}
}
}
private class myHandler extends JApplet implements Runnable
{
int openport=0;
public void run()
{
boolean trueorfalse = true;
int startPort = Integer.parseInt(textfield1.getText());
int stopPort = Integer.parseInt(textfield2.getText());
String ipaddress = textfield3.getText();
//InetAddress obj = new InetAddress(ipaddress);
output.setText("TCP Open PORTS:\n\n");
int diff = stopPort-startPort;
//int data[] = new int[diff];
for( int i=startPort; i <=stopPort; i++)
{
if( i<= stopPort )
{ try
{
Socket ServerSok = new Socket(ipaddress,i);
//data[i]=i;
System.out.println("Working:");
output.append("\n");
output.append(""+i);
openport++;
ServerSok.close();
}
catch (Exception ef)
{
}
}
//output.append("\n"+i);
}
output.append("\n\n"+openport+" open ports on host " +
ipaddress);
}
}
}
public class PortScanner
{
public static void main(String args[])
{
PortScanner1 m1 = new PortScanner1();
m1.setSize(700,400);
m1.setVisible(true);
m1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
/*
public static void main(String args[])
{
int startPortRange=0;
int stopPortRange=0;
startPortRange = Integer.parseInt(args[0]);
stopPortRange = Integer.parseInt(args[1]);
for(int i=startPortRange; i <=stopPortRange; i++)
{
try
{
Socket ServerSok = new
Socket("66.249.81.86",i);
System.out.println("Port in use: " + i );
ServerSok.close();
}
catch (Exception e)
{
}
System.out.println("Port not in use: " + i );
}
}
} */
nandu
IP address.The program then send packets to the IP and find out the
open ports using the response they get
Sincerely
Nandu