public static string ToStringEx(EchoMessage[] messages)
{
string retVal = "";
foreach(EchoMessage m in messages){
retVal += m.ToStringEx() + "\r\n";
}
return retVal;
}
// public Icmp()
// {
// }
#region function Trace
/// <summary>
/// Traces specified ip.
/// </summary>
/// <param name="destIP"></param>
/// <returns></returns>
public static EchoMessage[] Trace(string destIP)
{
ArrayList retVal = new ArrayList();
//Create Raw ICMP Socket
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint ipdest = new IPEndPoint(System.Net.IPAddress.Parse(destIP), 80);
EndPoint endpoint = (EndPoint)(new IPEndPoint(System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName()).AddressList[0], 80));
ushort id = (ushort)DateTime.Now.Millisecond;
byte[] ByteSend = CreatePacket(id);
int continuesNoReply = 0;
//send requests with increasing number of TTL
for (int ittl = 1; ittl <= 30; ittl++)
{
byte[] ByteRecv = new byte[256];
try
{
//Socket options to set TTL and Timeouts
s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, ittl);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 4000);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 4000);
//Get current time
DateTime startTime = DateTime.Now;
//Send Request
s.SendTo(ByteSend, ByteSend.Length, SocketFlags.None, ipdest);
//Receive
s.ReceiveFrom(ByteRecv, ByteRecv.Length, SocketFlags.None, ref endpoint);
//Calculate time required
TimeSpan ts = DateTime.Now - startTime;
retVal.Add(new EchoMessage(((IPEndPoint)endpoint).Address.ToString(), ittl, ts.Milliseconds));
// Endpoint reached
if (ByteRecv[20] == (byte)ICMP_Type.EchoReply)
{
break;
}
// Un wanted reply
if (ByteRecv[20] != (byte)ICMP_Type.TimeExceeded)
{
throw new Exception("UnKnown error !");
}
continuesNoReply = 0;
}
catch {
//ToDo: Handle recive/send timeouts
continuesNoReply++;
}
// If there is 3 continues no reply, consider that destination host won't accept ping.
if (continuesNoReply >= 3)
{
break;
}
}
EchoMessage[] val = new EchoMessage[retVal.Count];
retVal.CopyTo(val);
return(val);
}
/// <summary>
/// Traces specified ip.
/// </summary>
/// <param name="destIP"></param>
/// <returns></returns>
public static EchoMessage[] Trace(string destIP)
{
ArrayList retVal = new ArrayList();
//Create Raw ICMP Socket
Socket s = new Socket(AddressFamily.InterNetwork,SocketType.Raw,ProtocolType.Icmp);
IPEndPoint ipdest = new IPEndPoint(System.Net.IPAddress.Parse(destIP),80);
EndPoint endpoint = (EndPoint)(new IPEndPoint(System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName()).AddressList[0],80));
ushort id = (ushort)DateTime.Now.Millisecond;
byte[] ByteSend= CreatePacket(id);
int continuesNoReply = 0;
//send requests with increasing number of TTL
for(int ittl=1;ittl<=30; ittl++){
byte[] ByteRecv = new byte[256];
try
{
//Socket options to set TTL and Timeouts
s.SetSocketOption(SocketOptionLevel.IP,SocketOptionName.IpTimeToLive ,ittl);
s.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.SendTimeout ,4000);
s.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReceiveTimeout,4000);
//Get current time
DateTime startTime = DateTime.Now;
//Send Request
s.SendTo(ByteSend,ByteSend.Length,SocketFlags.None,ipdest);
//Receive
s.ReceiveFrom(ByteRecv,ByteRecv.Length,SocketFlags.None,ref endpoint);
//Calculate time required
TimeSpan ts = DateTime.Now - startTime;
retVal.Add(new EchoMessage(((IPEndPoint)endpoint).Address.ToString(),ittl,ts.Milliseconds));
// Endpoint reached
if(ByteRecv[20] == (byte)ICMP_Type.EchoReply){
break;
}
// Un wanted reply
if(ByteRecv[20] != (byte)ICMP_Type.TimeExceeded){
throw new Exception("UnKnown error !");
}
continuesNoReply = 0;
}
catch{
//ToDo: Handle recive/send timeouts
continuesNoReply++;
}
// If there is 3 continues no reply, consider that destination host won't accept ping.
if(continuesNoReply >= 3){
break;
}
}
EchoMessage[] val = new EchoMessage[retVal.Count];
retVal.CopyTo(val);
return val;
}
