/// <summary>
/// Send an dynamic update to the DNS server and returns the answer asynchronously.
/// </summary>
/// <param name="message"> Update, that should be send to the DNS server </param>
/// <param name="requestCallback"> An <see cref="System.AsyncCallback" /> delegate that references the method to invoked then the operation is complete. </param>
/// <param name="state"> A user-defined object that contains information about the receive operation. This object is passed to the <paramref
/// name="requestCallback" /> delegate when the operation is complete. </param>
/// <returns> An <see cref="System.IAsyncResult" /> IAsyncResult object that references the asynchronous receive. </returns>
public IAsyncResult BeginSendUpdate(DnsUpdateMessage message, AsyncCallback requestCallback, object state)
{
if (message == null)
throw new ArgumentNullException("message");
if (String.IsNullOrEmpty(message.ZoneName))
throw new ArgumentException("Zone name must be provided", "message");
return this.BeginSendMessage(message, requestCallback, state);
}
/// <summary>
/// Send an dynamic update to the DNS server and returns the answer.
/// </summary>
/// <param name="message"> Update, that should be send to the DNS server </param>
/// <returns> The complete response of the DNS server </returns>
public DnsUpdateMessage SendUpdate(DnsUpdateMessage message)
{
if (message == null)
throw new ArgumentNullException("message");
if (String.IsNullOrEmpty(message.ZoneName))
throw new ArgumentException("Zone name must be provided", "message");
return this.SendMessage(message);
}
/// <summary>
/// Creates a DNS message.
/// </summary>
/// <param name="resultData">The result data.</param>
/// <param name="isRequest">If <b>true</b> the message is a request.</param>
/// <param name="tsigKeySelector">The transaction signature key selector.</param>
/// <param name="originalMac">The original MAC.</param>
/// <returns>The DNS message.</returns>
internal static DnsMessageBase Create(byte[] resultData, bool isRequest, DnsServer.SelectTsigKey tsigKeySelector, byte[] originalMac)
{
int flagPosition = 2;
ushort flags = DnsMessageBase.ParseUShort(resultData, ref flagPosition);
DnsMessageBase res;
switch ((OperationCode) ((flags & 0x7800) >> 11))
{
case OperationCode.Update:
res = new DnsUpdateMessage();
break;
default:
res = new DnsMessage();
break;
}
res.Parse(resultData, isRequest, tsigKeySelector, originalMac);
return res;
}
