SCANNER D'IP

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;

namespace winscan
{
    /// <summary>
    /// Description of MainForm.
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox2;
		public System.Windows.Forms.ListBox listBox1;
		public static int n = 10;
        static string ip;
        static int port;
        static object obmrd;
        
    
        public Form1()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();          
            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
        }
        
        [STAThread]
        public static void Main(string[] args)
        {
            Application.Run(new Form1());
        }
        
        #region Windows Forms Designer generated code
        /// <summary>
        /// This method is required for Windows Forms designer support.
        /// do not change the method contents inside the source code editor. The Forms designer might
        /// not be able to load this method if it was changed manually.
        /// </summary>
        private void InitializeComponent() {
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.listBox1 = new System.Windows.Forms.ListBox();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(112, 24);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(88, 20);
			this.textBox2.TabIndex = 2;
			this.textBox2.Text = "127.0.0.20";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(208, 24);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(40, 20);
			this.textBox3.TabIndex = 6;
			this.textBox3.Text = "4444";
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(16, 24);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(88, 20);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "127.0.0.1";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(256, 24);
			this.textBox4.Name = "textBox4";
			this.textBox4.Size = new System.Drawing.Size(24, 20);
			this.textBox4.TabIndex = 8;
			this.textBox4.Text = "10";
			// 
			// label1
			// 
			this.label1.ForeColor = System.Drawing.Color.Black;
			this.label1.Location = new System.Drawing.Point(16, 8);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(100, 16);
			this.label1.TabIndex = 4;
			this.label1.Text = "Ip start :";
			// 
			// label4
			// 
			this.label4.Location = new System.Drawing.Point(256, 8);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(48, 16);
			this.label4.TabIndex = 9;
			this.label4.Text = "Thread :";
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(18, 240);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(272, 23);
			this.label5.TabIndex = 0;
			this.label5.Text = "Waiting ...";
			// 
			// button1
			// 
			this.button1.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.button1.ForeColor = System.Drawing.SystemColors.Control;
			this.button1.Location = new System.Drawing.Point(288, 24);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(56, 24);
			this.button1.TabIndex = 3;
			this.button1.Text = "Scan";
			this.button1.Click += new System.EventHandler(this.ButtonClick);
			// 
			// listBox1
			// 
			this.listBox1.Location = new System.Drawing.Point(16, 64);
			this.listBox1.Name = "listBox1";
			this.listBox1.ScrollAlwaysVisible = true;
			this.listBox1.Size = new System.Drawing.Size(328, 173);
			this.listBox1.TabIndex = 0;
			this.listBox1.Tag = "";
			// 
			// label2
			// 
			this.label2.ForeColor = System.Drawing.Color.Black;
			this.label2.Location = new System.Drawing.Point(112, 8);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(96, 16);
			this.label2.TabIndex = 5;
			this.label2.Text = "Ip End :";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(208, 8);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(32, 16);
			this.label3.TabIndex = 7;
			this.label3.Text = "Port :";
			// 
			// MainForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.BackColor = System.Drawing.Color.SlateGray;
			this.ClientSize = new System.Drawing.Size(360, 262);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.textBox4);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.textBox3);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.textBox1);
			this.Controls.Add(this.listBox1);
			this.Name = "MainForm";
			this.Text = "IP scanner by aBd0ulaX";
			this.Load += new System.EventHandler(this.MainFormLoad);
			this.ResumeLayout(false);
		}
        #endregion
        void ButtonClick(object sender, System.EventArgs e)
        {
            try
            {
            	Thread run = new Thread(new ThreadStart(scanner));
            	if ( this.button1.Text == "Scan" ) 
            	{
            		n = int.Parse(this.textBox4.Text);
            		port = int.Parse(this.textBox3.Text);
        	        //scanner(this.textBox1.Text,this.textBox2.Text);
            	    run.Start();
	                //scanner();
	                
            		this.button1.Text = "Stop";
            		this.textBox1.Enabled = false;
            		this.textBox2.Enabled = false;
            		this.textBox3.Enabled = false;
            		this.textBox4.Enabled = false;
            		this.listBox1.Items.Add( "*** Scanning " + this.textBox1.Text + " to " + this.textBox2.Text + " port " + port + " threads " + this.textBox4.Text);
                	this.listBox1.Refresh();
            	}
            	else 
            	{
            		//run.Abort();
            		this.button1.Text = "Scan";
            	}
            }
            catch
            {
            	MessageBox.Show("Parametre error !!","Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
            }
        }
        void MainFormLoad(object sender, System.EventArgs e)
        {
        	this.listBox1.Items.Add("Scanning PGM ... Have Fun :-)");
           	this.listBox1.Items.Add("---------------------------------------------------------->");
			obmrd = sender;
        }   
        //public static void scanner(string ipString,string ipend)
        public void scanner()
        {
        	try 
        	{
		        string ipString = this.textBox1.Text;
        		string ipend = this.textBox2.Text;
	    	    char[] delimite = {'.'};
    	    	string[] bAdd = ipString.Split(delimite,4);
        	    string[] bAdd2 = ipend.Split(delimite,4);           
            	long w ,x ,y ,z;
		        for (w=long.Parse(bAdd[0]);w<=256;w++) for (x=long.Parse(bAdd[1]);x<=256;x++) for (y=long.Parse(bAdd[2]);y<=256;y++) for (z=long.Parse(bAdd[3]);z<=256;z++)
       		   {
            		if ( this.button1.Text == "Scan" ) 
            		{
						CloseConnect();
	            		return;
    	        	}
        	        n--;
            	    while (n <= 0 ) Thread.Sleep(300);
                	ip = w.ToString() + '.' + x.ToString() + '.' + y.ToString() + '.' + z.ToString();
	                //Console.WriteLine("{1}\t***Connection to {0}\n",ip,n);
    	            label5.Text = ip;
        	        label5.Refresh();
        	        
        	        Connection ipToScan = new Connection(ip,port,this);        
            	    Thread t1 = new Thread(new ThreadStart(ipToScan.Connect));
                	t1.Start();
                	if ( ( w == long.Parse(bAdd2[0]) ) && ( x == long.Parse(bAdd2[1]) ) && ( y == long.Parse(bAdd2[2]) ) && ( z == long.Parse(bAdd2[3]) ) ) { this.button1.Text = "Scan"; }
	            }
        	}
            catch
            {
            	MessageBox.Show("Parametre error !!","Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
            	CloseConnect();
            	return;
            }
        }
        public void CloseConnect()
        {
        	this.textBox1.Enabled = true;
           	this.textBox2.Enabled = true;
            this.textBox3.Enabled = true;
            this.textBox4.Enabled = true;
            this.label5.Text = "Waiting ...";
            this.listBox1.Items.Add("*** Scan Closed");
            this.listBox1.Items.Add("---------------------------------------------------------->");
        }
    }
    public class Connection
    {
    	string ip;
    	Form1 frm;
    	int port;
    	
		public Connection(string ip1, int port1, Form1 frm1)
        {
			ip = ip1;
			frm = frm1;
			port = port1;
		}
		        public void Connect()
        {
            try {
                Socket s;
                IPEndPoint ep;
                s = new Socket( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                ep = new IPEndPoint(IPAddress.Parse(ip),port);
                s.Connect(ep);
                frm.listBox1.Items.Add(ip + " port " + port);
                frm.listBox1.Refresh();
                //Console.WriteLine("***Connection to {0} succed\n",ip);
                Form1.n++;
                s.Close();
            }
            catch {
                Form1.n++;
            }
        }
    }
		
}