static void Main(string[] args)
{
ArgumentParser arg = new ArgumentParser("ping");
var echoCount = new Argument<int>("count", 4);
var bufferSize = new Argument<int>("size", 32);
var ttl = new Argument<short>("TTL", 64);
var timeout = new Argument<int>("timeout", 2000);
var targetname = new Argument<string>("targetname");
var endless = arg.AddOption("t", help: "Ping the specified host until stopped.");
var rarp = arg.AddOption("a", help: "Resolve addresses to hostnames");
var help = arg.AddOption("h", help: "Show this help");
help.IsUsed += (se, e) =>
{
Console.Write(arg.Help());
Environment.Exit(0);
};
arg.AddOption("n", arguments: new Argument[] { echoCount }, help: "Number of echo requests to send.");
arg.AddOption("l", arguments: new Argument[] { bufferSize }, help: "Send buffer size.");
arg.AddOption("i", arguments: new Argument[] { ttl }, help: "Time To Live.");
arg.AddOption("w", arguments: new Argument[] { timeout }, help: "Timeout in milliseconds to wait for each reply.");
arg.AddArgument(targetname);
if (!arg.Parse(args))
{
Console.WriteLine(arg.Help());
return;
}
IPAddress ip = null;
try
{
ip = Dns.GetHostEntry(targetname.Value).AddressList.FirstOrDefault();
}
catch(Exception)
{
ip = null;
}
if (ip == null)
{
Console.WriteLine("IP or Host is invalid!");
return;
}
int dataLen = bufferSize.Value;
int waitTime = timeout.Value;
int count = echoCount.Value;
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
s.ReceiveTimeout = timeout.Value;
Console.WriteLine("Pinging " + ip + " with " + dataLen + " bytes of data:");
while (endless.Used || count > 0)
{
if (!endless.Used)
{
count--;
}
ICMPMessage m = new ICMPMessage(ICMPType.Echo, ip);
m.Data = new byte[dataLen];
// Generate Random Data as Payload
Random rand = new Random();
for (int i = 0; i < dataLen; i++)
{
m.Data[i] = (byte)rand.Next(255);
}
Stopwatch timing = new Stopwatch();
s.Ttl = ttl.Value;
timing.Start();
s.SendTo(m, new IPEndPoint(m.Destination, 0));
byte[] data = new byte[2000];
try
{
EndPoint ep = new IPEndPoint(IPAddress.Any, 0);
int recv = s.ReceiveFrom(data, ref ep);
timing.Stop();
DateTime receiveTime = DateTime.Now;
m = ICMPMessage.Parse(data.Take(recv).ToArray());
if (m.Type == ICMPType.EchoReply)
{
Console.WriteLine("Reply from {0}: bytes={1} time={2}ms TTL={3}", m.Source, m.Data.Length, timing.Elapsed.TotalMilliseconds, m.TTL);
}
else if (m.Type == ICMPType.TimeToLiveExpired)
{
Console.WriteLine("Reply from {0}: TTL expired in transit.", m.Source);
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.TimedOut)
{
Console.WriteLine("Request timed out.");
}
else
{
Console.WriteLine("Error: " + ex.SocketErrorCode);
}
}
Thread.Sleep(1000);
}
}
private static void PrintResult(bool resolve, int currentTtl, ICMPMessage m, Stopwatch timing)
{
string hostname = "";
if (resolve)
{
try
{
hostname = Dns.GetHostEntry(m.Source).HostName;
}
catch
{
}
}
if (string.IsNullOrWhiteSpace(hostname))
{
Console.WriteLine("{0,-3} {1,10:0.0000} ms {2}", currentTtl, timing.Elapsed.TotalMilliseconds, m.Source);
}
else
{
Console.WriteLine("{0,-3} {1,10:0.0000} ms {2} [{3}]", currentTtl, timing.Elapsed.TotalMilliseconds, hostname, m.Source);
}
}
/*
Usage: tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout]
[-R] [-S srcaddr] [-4] [-6] target_name
Options:
-d Do not resolve addresses to hostnames.
-h maximum_hops Maximum number of hops to search for target.
-j host-list Loose source route along host-list (IPv4-only).
-w timeout Wait timeout milliseconds for each reply.
-R Trace round-trip path (IPv6-only).
-S srcaddr Source address to use (IPv6-only).
-4 Force using IPv4.
-6 Force using IPv6.*/
static void Main(string[] args)
{
ArgumentParser arg = new ArgumentParser("tracert");
var maximumHops = new Argument<int>("maximumhops", 30);
var timeout = new Argument<int>("timeout", 2000);
var dontresolve = arg.AddOption("d", help: "Do not resolve addresses to hostnames.");
var targetname = new Argument<string>("targetname");
var help = arg.AddOption("h", help: "Show this help");
help.IsUsed += (se, e) =>
{
Console.Write(arg.Help());
Environment.Exit(0);
};
arg.AddOption("h", arguments: new Argument[] { maximumHops }, help: "Maximum number of hops to search for target.");
arg.AddOption("w", arguments: new Argument[] { timeout }, help: "Wait timeout milliseconds for each reply.");
arg.AddArgument(targetname);
if (!arg.Parse(args))
{
Console.WriteLine(arg.Help());
return;
}
string name = targetname.Value;
IPAddress ip = null;
try
{
if (IPAddress.TryParse(name, out ip))
{
name = Dns.GetHostEntry(ip).HostName;
}
else
{
ip = Dns.GetHostEntry(name).AddressList.FirstOrDefault();
}
}
catch (Exception)
{
ip = null;
}
if (ip == null)
{
Console.WriteLine("IP or Host is invalid!");
return;
}
int dataLen = 0;
int waitTime = timeout.Value;
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
s.ReceiveTimeout = timeout.Value;
Console.WriteLine("Tracing route to {0} [{1}]", name, ip);
Console.WriteLine("over a maximum of {0} hops:", maximumHops.Value);
Console.WriteLine();
bool targetReached = false;
short currentTtl = 1;
while (!targetReached || currentTtl == maximumHops.Value)
{
ICMPMessage m = new ICMPMessage(ICMPType.Echo, ip);
m.Data = new byte[dataLen];
// Generate Random Data as Payload
Random rand = new Random();
for (int i = 0; i < dataLen; i++)
{
m.Data[i] = (byte)rand.Next(255);
}
Stopwatch timing = new Stopwatch();
s.Ttl = currentTtl;
timing.Start();
s.SendTo(m, new IPEndPoint(m.Destination, 0));
byte[] data = new byte[2000];
try
{
EndPoint ep = new IPEndPoint(IPAddress.Any, 0);
int recv = s.ReceiveFrom(data, ref ep);
timing.Stop();
DateTime receiveTime = DateTime.Now;
m = ICMPMessage.Parse(data.Take(recv).ToArray());
if (m.Type == ICMPType.EchoReply)
{
targetReached = true;
PrintResult(!dontresolve.Used, currentTtl, m, timing);
}
else if (m.Type == ICMPType.TimeToLiveExpired)
{
PrintResult(!dontresolve.Used, currentTtl, m, timing);
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.TimedOut)
{
Console.WriteLine("{0,-3} {1,10} Request timed out", currentTtl, "*");
}
else
{
Console.WriteLine("Error: " + ex.SocketErrorCode);
}
}
currentTtl++;
}
Console.WriteLine();
Console.WriteLine("Trace complete.");
}
public static ICMPMessage Parse(byte[] data)
{
if (data.Length < 20)
{
// damn! kein ip header?!
throw new Exception("No IP Header received!");
}
ICMPMessage m = new ICMPMessage();
m.TTL = data[8];
m.Source = new IPAddress((uint)data[12] | (uint)data[13] << 8 | (uint)data[14] << 16 | (uint)data[15] << 24);
m.Destination = new IPAddress((uint)data[16] | (uint)data[17] << 8 | (uint)data[18] << 16 | (uint)data[19] << 24);
// 20 bytes == IP Header
byte[] icmpMessage = data.Skip(20).ToArray();
if (icmpMessage.Length < 8)
{
// damn! kein icmp header?!
throw new Exception("No ICMP Header received!");
}
m.Type = (ICMPType)icmpMessage[0];
m.Code = icmpMessage[1];
m.Checksum = (ushort)(icmpMessage[2] << 8 | icmpMessage[3]);
m.Identifier = (ushort)(icmpMessage[4] << 8 | icmpMessage[5]);
m.SequenceNumber = (ushort)(icmpMessage[6] << 8 | icmpMessage[7]);
m.Data = icmpMessage.Skip(8).ToArray();
return m;
}