/// <summary>
/// CommandDns
/// </summary>
/// <param name="arguments">Arguments</param>
public override ReturnInfo Execute(List <string> arguments)
{
try
{
var dnsClient = new DnsClient();
var tcpClient = new TcpClient(80);
//Uri uri = new Uri(arguments[0]); Missing plugs
dnsClient.Connect(DNSConfig.Server(0));
dnsClient.SendAsk(arguments[0]);
Address address = dnsClient.Receive();
dnsClient.Close();
tcpClient.Connect(address, 80);
string httpget = "GET / HTTP/1.1\r\n" +
"User-Agent: Wget (CosmosOS)\r\n" +
"Accept: */*\r\n" +
"Accept-Encoding: identity\r\n" +
"Host: " + arguments[0] + "\r\n" +
"Connection: Keep-Alive\r\n\r\n";
tcpClient.Send(Encoding.ASCII.GetBytes(httpget));
var ep = new EndPoint(Address.Zero, 0);
var data = tcpClient.Receive(ref ep);
tcpClient.Close();
string httpresponse = Encoding.ASCII.GetString(data);
Kernel.console.WriteLine(httpresponse);
}
catch (Exception ex)
{
Kernel.console.WriteLine("Exception: " + ex);
}
return(new ReturnInfo(this, ReturnCode.OK));
}
/// <summary>
/// CommandDns
/// </summary>
/// <param name="arguments">Arguments</param>
public override ReturnInfo Execute(List <string> arguments)
{
var xClient = new DnsClient();
string domainname;
if (arguments.Count < 1 || arguments.Count > 2)
{
return(new ReturnInfo(this, ReturnCode.ERROR_ARG));
}
else if (arguments.Count == 1)
{
xClient.Connect(DNSConfig.Server(0));
Kernel.console.WriteLine("DNS used : " + DNSConfig.Server(0).ToString());
xClient.SendAsk(arguments[0]);
domainname = arguments[0];
}
else
{
xClient.Connect(Address.Parse(arguments[0]));
xClient.SendAsk(arguments[1]);
domainname = arguments[1];
}
Address address = xClient.Receive();
xClient.Close();
if (address == null)
{
return(new ReturnInfo(this, ReturnCode.ERROR, "Unable to find " + arguments[0]));
}
else
{
Kernel.console.WriteLine(domainname + " is " + address.ToString());
}
return(new ReturnInfo(this, ReturnCode.OK));
}
/// <summary>
/// CommandEcho
/// </summary>
/// <param name="arguments">Arguments</param>
public override ReturnInfo Execute(List <string> arguments)
{
int PacketSent = 0;
int PacketReceived = 0;
int PacketLost = 0;
int PercentLoss;
Address source;
Address destination = Address.Parse(arguments[0]);
if (destination != null)
{
source = IPConfig.FindNetwork(destination);
}
else //Make a DNS request if it's not an IP
{
var xClient = new DnsClient();
xClient.Connect(DNSConfig.Server(0));
xClient.SendAsk(arguments[0]);
destination = xClient.Receive();
xClient.Close();
if (destination == null)
{
return(new ReturnInfo(this, ReturnCode.ERROR, "Failed to get DNS response for " + arguments[0]));
}
source = IPConfig.FindNetwork(destination);
}
try
{
Console.WriteLine("Sending ping to " + destination.ToString());
var xClient = new ICMPClient();
xClient.Connect(destination);
for (int i = 0; i < 4; i++)
{
xClient.SendEcho();
PacketSent++;
var endpoint = new EndPoint(Address.Zero, 0);
int second = xClient.Receive(ref endpoint, 4000);
if (second == -1)
{
Console.WriteLine("Destination host unreachable.");
PacketLost++;
}
else
{
if (second < 1)
{
Console.WriteLine("Reply received from " + endpoint.address.ToString() + " time < 1s");
}
else if (second >= 1)
{
Console.WriteLine("Reply received from " + endpoint.address.ToString() + " time " + second + "s");
}
PacketReceived++;
}
}
xClient.Close();
}
catch
{
return(new ReturnInfo(this, ReturnCode.ERROR, "Ping process error."));
}
PercentLoss = 25 * PacketLost;
Console.WriteLine();
Console.WriteLine("Ping statistics for " + destination.ToString() + ":");
Console.WriteLine(" Packets: Sent = " + PacketSent + ", Received = " + PacketReceived + ", Lost = " + PacketLost + " (" + PercentLoss + "% loss)");
return(new ReturnInfo(this, ReturnCode.OK));
}
protected override void Run()
{
NetworkStack.Update();
Console.Write("> ");
var input = Console.ReadLine();
if (input.ToLower().StartsWith("sendpkt"))
{
var x = new UdpClient(128);
x.Connect(Address.Zero, 128);
x.Send(Encoding.ASCII.GetBytes("Hello from cosmos!"));
x.Close();
}
else if (input.ToLower().StartsWith("getip"))
{
Console.WriteLine("Connecting to DNS Server");
xClient.Connect(new Address(8, 8, 4, 4));
Console.WriteLine("Asking IP for github.com");
xClient.SendAsk("github.com");
Console.WriteLine("Waiting for data");
var addr = xClient.Receive();
if (addr == null)
{
Console.WriteLine("Error: connection timed out");
}
else
{
Console.WriteLine("Got data: " + addr.ToString());
}
}
else if (input.ToLower().StartsWith("gettime"))
{
NTPClient client = new NTPClient();
var t = client.GetNetworkTime();
if (t == null)
{
Console.WriteLine("NTPClient.GetNetworkTime() Returned null!");
}
else
{
Console.WriteLine("NTPClient.GetNetworkTime() Returned " + t);
}
}
else if (input.ToLower().StartsWith("ping"))
{
string s = input.Replace("ping ", "");
if (input.ToLower() == "ping" | string.IsNullOrEmpty(s))
{
Console.WriteLine("Invaild synax. Usage: ping <ip address or site>");
return;
}
Address dest = Address.Parse(s);
if (dest == null)
{
//make a DNS request
xClient.Connect(DNSConfig.Server(0));
xClient.SendAsk(s);
dest = xClient.Receive();
xClient.Close();
if (dest == null)
{
Console.WriteLine("ERROR: Cannot find " + s);
return;
}
}
int PacketSent = 0;
int PacketReceived = 0;
int PacketLost = 0;
int PercentLoss;
try
{
Console.WriteLine("Sending ping to " + dest.ToString());
var xClient = new ICMPClient();
xClient.Connect(dest);
for (int i = 0; i < 4; i++)
{
xClient.SendEcho();
PacketSent++;
var endpoint = new EndPoint(Address.Zero, 0);
int second = xClient.Receive(ref endpoint, 4000);
if (second == -1)
{
Console.WriteLine("Destination host unreachable.");
PacketLost++;
}
else
{
if (second < 1)
{
Console.WriteLine("Reply received from " + endpoint.address.ToString() + " time < 1s");
}
else if (second >= 1)
{
Console.WriteLine("Reply received from " + endpoint.address.ToString() + " time " + second + "s");
}
PacketReceived++;
}
}
xClient.Close();
}
catch (Exception x)
{
Console.WriteLine("Ping error: " + x.Message);
}
PercentLoss = 25 * PacketLost;
Console.WriteLine();
Console.WriteLine("Ping statistics for " + dest.ToString() + ":");
Console.WriteLine(" Packets: Sent = " + PacketSent + ", Received = " + PacketReceived + ", Lost = " + PacketLost + " (" + PercentLoss + "% loss)");
}
else if (input.ToLower().StartsWith("ipconfig"))
{
ipconfig();
}
else if (input.ToLower().StartsWith("help"))
{
Console.WriteLine("MishaNetworkDemoOS Commands");
Console.WriteLine("ipconfig - Gets current IP config");
Console.WriteLine("getip - Gets IP address of github.com");
Console.WriteLine("sendpkt - Sends a packet");
Console.WriteLine("gettime - Get UTC time from time.windows.com");
}
else if (string.IsNullOrEmpty(input))
{
}
else
{
Console.WriteLine("Unknown command.");
}
NetworkStack.Update();
}