public static async Task <NBTResponse> GetNBTResponseAsync(string ip, Socket sock, int Timeout = 1000)
{
NBTResponse response = null;
// Task.Run(() => Console.WriteLine("hello"));
try
{
EndPoint targetEndpoint = new IPEndPoint(IPAddress.Parse(ip), 137);
response = new NBTResponse();
sock.ReceiveTimeout = Timeout;
sock.SendTimeout = Timeout;
sock.SendTo(QueryPacket, QueryPacket.Length, SocketFlags.None, targetEndpoint);
response.IPAddress = IPAddress.Parse(ip);
response.rawResult = new byte[250];
response.received = sock.ReceiveFrom(response.rawResult, ref targetEndpoint);
response.hostname = Encoding.ASCII.GetString(response.rawResult, 57, 16).TrimEnd();
response.domain = Encoding.ASCII.GetString(response.rawResult, 75, 16).TrimEnd();
response.service = Encoding.ASCII.GetString(response.rawResult, 93, 16).TrimEnd();
response.macAddress = BitConverter.ToString(response.rawResult).Replace("-", "").Substring(222, 12);
response.IsdomainController = (response.rawResult[2] == 0x84);
//string dcstr = String.Format("{0:X}",response.rawResult[2]); //BitConverter.ToString(message).Replace("-","").Substring(5,6);
}
catch (Exception e)
{
throw e;
}
sock.Close();
return(response);
}
public static NBTResponse GetNBTResponse(string ip, int Timeout = 1000)
{
// Console.WriteLine("getNBTResponse called");
NBTResponse response = null;
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sock.EnableBroadcast = true;
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
sock.Bind(new IPEndPoint(IPAddress.Any, 0));
// Console.WriteLine("Socket Created and bound");
try
{
EndPoint targetEndpoint = new IPEndPoint(IPAddress.Parse(ip), 137);
// Console.WriteLine("Endpoint created");
response = new NBTResponse();
sock.ReceiveTimeout = 1000;
response.IPAddress = IPAddress.Parse(ip);
response.rawResult = new byte[250];
response.received = 0;
// Console.WriteLine("socket setup and response object created");
sock.SendTo(QueryPacket, QueryPacket.Length, SocketFlags.None, targetEndpoint);
// Console.WriteLine("sent packet");
// Console.WriteLine("Socket Receive Timeout: {0}",sock.ReceiveTimeout);
response.received = sock.ReceiveFrom(response.rawResult, ref targetEndpoint);
// Console.WriteLine("packet received");
response.reachable = response.received != 0;
response.hostname = Encoding.ASCII.GetString(response.rawResult, 57, 16).TrimEnd();
response.domain = Encoding.ASCII.GetString(response.rawResult, 75, 16).TrimEnd();
response.service = Encoding.ASCII.GetString(response.rawResult, 93, 16).TrimEnd();
response.macAddress = BitConverter.ToString(response.rawResult).Replace("-", "").Substring(222, 12);
response.IsdomainController = (response.rawResult[108] == 0x1c);
//string dcstr = String.Format("{0:X}",response.rawResult[108]); //BitConverter.ToString(message).Replace("-","").Substring(5,6);
// Console.WriteLine(dcstr);
}
catch (TimeoutException e)
{
//Console.WriteLine("timeout");
throw e;
}
catch (SocketException e)
{
//throw e;
}
catch (Exception e)
{
throw e;
}
finally
{
sock.Close();
}
return(response);
}
public static async Task <NBTResponse> GetNBTResponseAsync(string ip, int Timeout = 1000)
{
NBTResponse response = await GetNBTResponseAsTask(ip, Timeout);
return(response);
}
