static void Traceroute(Socket socket, ICMPPacket packet, IPEndPoint destIPEndPoint)
{
int timeStart, timeEnd, responseSize, errCount = 0;
byte[] responseMessage;
EndPoint hopEndPoint = destIPEndPoint;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
for (int i = 1; i < 50; i++)
{
for (int j = 0; j < 3; j++)
{
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timeStart = Environment.TickCount;
socket.SendTo(packet.getBytes(), packet.PacketSize, SocketFlags.None, destIPEndPoint);
try
{
responseMessage = new byte[MESSAGE_MAX_SIZE];
responseSize = socket.ReceiveFrom(responseMessage, ref hopEndPoint);
timeEnd = Environment.TickCount;
ICMPPacket response = new ICMPPacket(responseMessage, responseSize);
if ((response.Type == 0) || (response.Type == 11))
{
Console.Write("{0} мс\t", timeEnd - timeStart);
if (j == 2)
{
Console.WriteLine("{0}: {1}", i, hopEndPoint.ToString());
}
}
if ((response.Type == 0) && (j == 2))
{
Console.WriteLine("Трассировка завершена.");
return;
}
errCount = 0;
}
catch (SocketException)
{
Console.Write("*\t");
if (j == 2)
{
Console.WriteLine("{0}: Превышен интервал ожидания для запроса.", i); //
}
errCount++;
if (errCount == 30)
{
Console.WriteLine("Невозможно связаться с удаленным хостом."); //
return;
}
}
}
}
}
static void Traceroute(Socket socket, ICMPPacket packet, IPEndPoint destIP)
{
int responseSize;
DateTime timeStart, timeEnd;
byte[] responseMessage;
EndPoint hopIP = destIP;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
for (int i = 1; i < 31; i++)
{
EndPoint BufPoint = null;
Console.Write("{0, 3} ", i);
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
for (int j = 0; j < 3; j++)
{
timeStart = DateTime.Now;
socket.SendTo(packet.getBytes(), packet.PacketSize, SocketFlags.None, destIP);
try
{
responseMessage = new byte[MESSAGE_SIZE];
responseSize = socket.ReceiveFrom(responseMessage, ref hopIP);
timeEnd = DateTime.Now;
ICMPPacket response = new ICMPPacket(responseMessage, responseSize);
if ((response.Type == TYPE_ECHO_RESPONSE) || (response.Type == TYPE_TTL_EXCEEDED))
{
BufPoint = hopIP;
if ((timeEnd.Ticks - timeStart.Ticks) / 10000 > 0)
{
Console.Write("{0, 5} ms", (timeEnd.Ticks - timeStart.Ticks) / 10000);
}
else
{
Console.Write(" <1 ms");
}
if (j == 2)
{
string IP = hopIP.ToString();
IP = IP.Remove(IP.IndexOf(':'), IP.Length - IP.IndexOf(':'));
try
{
if (showName)
{
string HostName = Dns.GetHostEntry(IP).HostName;
Console.WriteLine(" {0} [{1}]", HostName, IP);
}
else
{
Console.WriteLine(" {0}", IP);
}
}
catch (SocketException)
{
Console.WriteLine(" {0}", IP);
}
}
}
if ((response.Type == TYPE_ECHO_RESPONSE) && (j == 2))
{
Console.WriteLine("\nТрассировка завершена.");
return;
}
}
catch (SocketException)
{
Console.Write(" * ");
if (j == 2 && BufPoint == null)
{
Console.WriteLine(" Превышен интервал ожидания для запроса.", i);
}
else if (j == 2)
{
string IP = hopIP.ToString();
IP = IP.Remove(IP.IndexOf(':'), IP.Length - IP.IndexOf(':'));
try
{
if (showName)
{
string HostName = Dns.GetHostEntry(IP).HostName;
Console.WriteLine("{0} [{1}]", IP, HostName);
}
else
{
Console.WriteLine("{0}", IP);
}
}
catch (SocketException)
{
Console.WriteLine("{0}", IP);
}
}
}
packet.incSeq();
}
if (i == 30)
{
Console.WriteLine("Невозможно связаться с удаленным хостом.");
}
}
}
