public static byte[] GetTxtRecords(string address, string host, int port)
{
byte[] header = { 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 };
string[] addressParts = address.Split('.');
byte[] label = new byte[address.Length + 2];
int pos = 0;
foreach (string part in addressParts)
{
label[pos++] = System.Convert.ToByte(part.Length);
foreach (char character in part)
{
label[pos++] = System.Convert.ToByte(character);
}
label[pos] = 0;
}
byte[] footer = { 0, 16, 0, 1 };
// Build the query
byte[] query = new byte[header.Length + label.Length + footer.Length];
header.CopyTo(query, 0);
label.CopyTo(query, header.Length);
footer.CopyTo(query, header.Length + label.Length);
// Send the query
//System.Net.IPEndPoint endPoint = new System.Net.IPEndPoint(GetIpAddress(dnsHost), 53);
System.Net.IPEndPoint endPoint = new System.Net.IPEndPoint(System.Net.IPAddress.Parse(host), 53);
//System.Net.Sockets.UdpClient udpClient = new System.Net.Sockets.UdpClient();
ActiveUp.Net.Mail.TimedUdpClient udpClient = new ActiveUp.Net.Mail.TimedUdpClient();
udpClient.Connect(endPoint);
udpClient.Send(query, query.Length);
byte[] response2;
try
{
response2 = udpClient.Receive(ref endPoint);
}
catch (Exception ex)
{
udpClient.Close();
throw new System.Exception("Can't connect to DNS server.");
}
//System.IO.FileStream fs = new System.IO.FileStream("c:\\Inetpub\\wwwroot\\brol.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
//fs.Write(response2, 0, response2.Length);
//fs.Close();
pos = query.Length;
//ActiveUp.Net.Mail.MxRecordCollection mxRecords = new ActiveUp.Net.Mail.MxRecordCollection();
//for (index = 1; index <= answersCount; index++)
//{
//ActiveUp.Net.Mail.MxRecord newMxRecord = new ActiveUp.Net.Mail.MxRecord();
GetLabelsByPos(response2, ref pos);
pos += 7;
int length = response2[pos];
byte[] data = new byte[response2.Length - pos - 4];
Array.Copy(response2, pos + 4, data, 0, response2.Length - pos - 4);
return(data);
}
public static byte[] GetTxtRecords(string address, string host, int port)
{
byte[] header = { 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 };
string[] addressParts = address.Split('.');
byte[] label = new byte[address.Length + 2];
int pos = 0;
foreach (string part in addressParts)
{
label[pos++] = System.Convert.ToByte(part.Length);
foreach (char character in part)
label[pos++] = System.Convert.ToByte(character);
label[pos] = 0;
}
byte[] footer = { 0, 16, 0, 1 };
// Build the query
byte[] query = new byte[header.Length + label.Length + footer.Length];
header.CopyTo(query, 0);
label.CopyTo(query, header.Length);
footer.CopyTo(query, header.Length + label.Length);
// Send the query
//System.Net.IPEndPoint endPoint = new System.Net.IPEndPoint(GetIpAddress(dnsHost), 53);
System.Net.IPEndPoint endPoint = new System.Net.IPEndPoint(System.Net.IPAddress.Parse(host), 53);
//System.Net.Sockets.UdpClient udpClient = new System.Net.Sockets.UdpClient();
ActiveUp.Net.Mail.TimedUdpClient udpClient = new ActiveUp.Net.Mail.TimedUdpClient();
udpClient.Connect(endPoint);
udpClient.Send(query, query.Length);
byte[] response2;
try
{
response2 = udpClient.Receive(ref endPoint);
}
catch(Exception)
{
udpClient.Close();
throw new System.Exception("Can't connect to DNS server.");
}
//System.IO.FileStream fs = new System.IO.FileStream("c:\\Inetpub\\wwwroot\\brol.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
//fs.Write(response2, 0, response2.Length);
//fs.Close();
pos = query.Length;
//ActiveUp.Net.Mail.MxRecordCollection mxRecords = new ActiveUp.Net.Mail.MxRecordCollection();
//for (index = 1; index <= answersCount; index++)
//{
//ActiveUp.Net.Mail.MxRecord newMxRecord = new ActiveUp.Net.Mail.MxRecord();
GetLabelsByPos(response2, ref pos);
pos += 7;
// int length = response2[pos];
byte[] data = new byte[response2.Length-pos-4];
Array.Copy(response2, pos + 4, data, 0, response2.Length - pos - 4);
return data;
}
