/// <summary>
/// Request resulted in a failure.
/// </summary>
/// <param name="ID">Original request ID.</param>
protected virtual void ProcessMessageFailure(ushort ID)
{
Rec Rec;
lock (this.outgoingMessages)
{
if (this.outgoingMessages.TryGetValue(ID, out Rec))
{
this.outgoingMessages.Remove(ID);
}
else
{
return;
}
}
try
{
DnsMessage Message = new DnsMessage(new byte[]
{
(byte)(ID >> 8),
(byte)(ID & 255),
0x80, // Response
(byte)RCode.ServFail,
0, 0, // QDCOUNT
0, 0, // ANCOUNT
0, 0, // NSCOUNT
0, 0 // ARCOUNT
});
Rec.Callback?.Invoke(this, new DnsMessageEventArgs(Message, Rec.State));
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
/// <summary>
/// DNS Messge event arguments.
/// </summary>
/// <param name="Message">DNS Message</param>
/// <param name="State">State object</param>
public DnsMessageEventArgs(DnsMessage Message, object State)
{
this.message = Message;
this.state = State;
}