// implement the actionPerformed
public void actionPerformed(ActionEvent a) {
int minPort;
int maxPort;
int maxThread;
try {
minPort = Integer.parseInt(ThreadScan.minPort.getText());
maxPort = Integer.parseInt(ThreadScan.maxPort.getText());
maxThread = Integer.parseInt(ThreadScan.maxThread.getText());
} catch (NumberFormatException e) {
ThreadScan.DLGINFO.setText("Please enter the right port and thread number!");
ThreadScan.DLGError.setVisible(true);
ThreadScan.status.setText("Scanning status: Not started");
return;
}
try {
TCPThread.hostAddress = InetAddress.getByName(ThreadScan.hostname.getText()); // DNS service
} catch (UnknownHostException e) {
ThreadScan.DLGINFO.setText(" Wrong IP/hostname or unreachable host! ");
ThreadScan.DLGError.setVisible(true);
ThreadScan.status.setText("Scanning status: Not started");
return;
}
if (minPort < 0 || minPort > 65535 || minPort > maxPort) {
ThreadScan.DLGINFO.setText("Please enter port range from 0 ~ 65535!");
ThreadScan.DLGError.setVisible(true);
return;
} else {
TCPThread.MIN_port = minPort;
}
if (maxPort < 0 || maxPort > 65535 || maxPort < minPort) {
ThreadScan.DLGINFO.setText("Please enter port range from 0 ~ 65535!");
ThreadScan.DLGError.setVisible(true);
ThreadScan.status.setText("Scanning status: Not started");
return;
} else {
TCPThread.MAX_port = maxPort;
}
if (maxThread < 1 || maxThread > 200) {
ThreadScan.DLGINFO.setText(
" Please enter threads number from 0 ~ 200! ");
ThreadScan.DLGError.setVisible(true);
ThreadScan.status.setText("Scanning status: Not started");
return;
}
ThreadScan.status.setEnabled(true);
ThreadScan.Result.setText("");
ThreadScan.Result.append(
"Scanning "
+ ThreadScan.hostname.getText()
+ " Number of threads "
+ ThreadScan.maxThread.getText()
+ "\n");
ThreadScan.Result.append("Open ports: ");
for (int i = 0; i < maxThread; i++) {
new TCPThread("T" + i, i).start();
// System.out.print(i+" ");
}
flag1 = 0;
}