Creando un portscanner

**[G]host** Jue Ago 18, 2011 4:49 am

Código:: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Net.Sockets; using System.Windows.Forms; namespace PortScanner { public partial class frmMain : Form { protected int StartPort; protected int EndPort; public frmMain() { InitializeComponent(); } private void btnScan_Click(object sender, EventArgs e) { StartPort = Convert.ToInt32(numStart.Value); EndPort = Convert.ToInt32(numEnd.Value); prgScanning.Value = 0; prgScanning.Maximum = EndPort - StartPort + 1; Cursor.Current = Cursors.WaitCursor; for (int CurrPort = StartPort; CurrPort <= EndPort; CurrPort++) { TcpClient TcpScan = new TcpClient(); try { TcpScan.Connect(txtIP.Text, CurrPort); txtLog.AppendText("Port " + CurrPort + " open\r\n"); } catch { txtLog.AppendText("Port " + CurrPort + " closed\r\n"); } prgScanning.PerformStep(); } Cursor.Current = Cursors.Arrow; } private void frmMain_Load(object sender, EventArgs e) { } private void txtIP_TextChanged(object sender, EventArgs e) { } private void numStart_ValueChanged(object sender, EventArgs e) { } private void numEnd_ValueChanged(object sender, EventArgs e) { } } }