Network Stuff (easy socket v3)

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace Network_Stuff
{
	/// <summary>
	/// Description r�sum�e de FormTCPRaw.
	/// </summary>
	public class FormTCPRaw : System.Windows.Forms.Form
	{
		/// <summary>
		/// Variable n�cessaire au concepteur.
		/// </summary>
		private System.ComponentModel.Container components = null;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.TextBox textBox_raw_data;
		private easy_socket.tcp_header.tcp_header_server tcp_hs;
		public FormTCPRaw()
		{
			//
			// Requis pour la prise en charge du Concepteur Windows Forms
			//
			InitializeComponent();
			XPStyle.MakeXPStyle(this);
			//
			// TODO : ajoutez le code du constructeur apr�s l'appel � InitializeComponent
			//
			tcp_hs=new easy_socket.tcp_header.tcp_header_server();
			tcp_hs.event_Data_Arrival+=new easy_socket.tcp_header.Socket_Data_Arrival_EventHandler(data_arrival);
			tcp_hs.event_Socket_Error+=new easy_socket.tcp_header.Socket_Error_EventHandler(data_error);
			tcp_hs.sniff_outgoing_packets=true;
			tcp_hs.start("10.0.0.1",80);

		}

		/// <summary>
		/// Nettoyage des ressources utilis�es.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			tcp_hs.event_Data_Arrival-=new easy_socket.tcp_header.Socket_Data_Arrival_EventHandler(data_arrival);
			tcp_hs.event_Socket_Error-=new easy_socket.tcp_header.Socket_Error_EventHandler(data_error);
			tcp_hs.stop();
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// M�thode requise pour la prise en charge du concepteur - ne modifiez pas
		/// le contenu de cette m�thode avec l'�diteur de code.
		/// </summary>
		private void InitializeComponent()
		{
			this.button1 = new System.Windows.Forms.Button();
			this.textBox_raw_data = new System.Windows.Forms.TextBox();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(336, 8);
			this.button1.Name = "button1";
			this.button1.TabIndex = 1;
			this.button1.Text = "button1";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// textBox_raw_data
			// 
			this.textBox_raw_data.Multiline = true;
			this.textBox_raw_data.Name = "textBox_raw_data";
			this.textBox_raw_data.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
			this.textBox_raw_data.Size = new System.Drawing.Size(304, 312);
			this.textBox_raw_data.TabIndex = 0;
			this.textBox_raw_data.Text = "";
			// 
			// FormTCPRaw
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(544, 318);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.button1,
																		  this.textBox_raw_data});
			this.Name = "FormTCPRaw";
			this.Text = "FormTCPRaw";
			this.ResumeLayout(false);

		}
		#endregion
bool b_;
		private void data_arrival(easy_socket.tcp_header.tcp_header_server sender, easy_socket.tcp_header.EventArgs_ipv4header_ReceiveData e)
		{
			if (b_)
			{
				if (e.ipv4header.DestinationAddress=="10.0.0.1")
				{
					easy_socket.tcp_header.tcp_reply_header tcprh=new easy_socket.tcp_header.tcp_reply_header();
					tcprh.receive(e.ipv4header.source_address,e.ipv4header.destination_address,sender);
					//byte[] b=tcprh.encode(e.ipv4header.destination_address,e.ipv4header.source_address);
					tcprh.URG=true;
					tcprh.send(e.ipv4header.destination_address,e.ipv4header.source_address);
					b_=false;
				}
			}

this.textBox_raw_data.Text+="\r\nsrc_addr "+ e.ipv4header.SourceAddress;
this.textBox_raw_data.Text+="\r\ndst_addr "+ e.ipv4header.DestinationAddress;
this.textBox_raw_data.Text+="\r\nsrc_port "+ sender.SourcePort.ToString();
this.textBox_raw_data.Text+="\r\ndst port "+ sender.DestinationPort.ToString();
this.textBox_raw_data.Text+="\r\nsyn "+ sender.SYN.ToString();
this.textBox_raw_data.Text+="\r\nack "+ sender.ACK.ToString();
this.textBox_raw_data.Text+="\r\nreset "+ sender.RST.ToString();
this.textBox_raw_data.Text+="\r\nfin "+ sender.FIN.ToString();
this.textBox_raw_data.Text+="\r\npush "+ sender.PSH.ToString();
this.textBox_raw_data.Text+="\r\nurgent "+ sender.URG.ToString();
this.textBox_raw_data.Text+="\r\nseq_num "+ sender.SequenceNumber.ToString();
this.textBox_raw_data.Text+="\r\nackno_num "+ sender.AcknowledgmentNumber.ToString();
this.textBox_raw_data.Text+="\r\nwindow_size "+ sender.Window.ToString();

string strdata=System.Text.Encoding.Default.GetString(sender.data);
this.textBox_raw_data.Text+="\r\ndata "+ strdata;
		}
		private void data_error(easy_socket.tcp_header.tcp_header sender, easy_socket.tcp_header.EventArgs_Exception e)
		{
this.textBox_raw_data.Text+=e.exception.Message;
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			easy_socket.tcp_header.tcp_header_client c=new easy_socket.tcp_header.tcp_header_client();
			c.SYN=true;
			c.SequenceNumber=(uint)System.Environment.TickCount;
			c.DestinationPort=80;
			c.SourcePort=80;
			c.URG=true;
			c.send("10.0.0.1","10.0.0.138");//"216.239.59.104");
b_=true;
		}

	}
}