private void OnQueryRecordReply(ServiceRef sdRef, ServiceFlags flags, uint interfaceIndex,
ServiceError errorCode, string fullname, ServiceType rrtype, ServiceClass rrclass, ushort rdlen,
IntPtr rdata, uint ttl, IntPtr context)
{
switch (rrtype)
{
case ServiceType.A:
IPAddress address;
if (rdlen == 4)
{
// ~4.5 times faster than Marshal.Copy into byte[4]
uint address_raw = (uint)(Marshal.ReadByte(rdata, 3) << 24);
address_raw |= (uint)(Marshal.ReadByte(rdata, 2) << 16);
address_raw |= (uint)(Marshal.ReadByte(rdata, 1) << 8);
address_raw |= (uint)Marshal.ReadByte(rdata, 0);
address = new IPAddress(address_raw);
}
else if (rdlen == 16)
{
byte [] address_raw = new byte[rdlen];
Marshal.Copy(rdata, address_raw, 0, rdlen);
address = new IPAddress(address_raw, interfaceIndex);
}
else
{
break;
}
if (hostentry == null)
{
hostentry = new IPHostEntry();
hostentry.HostName = hosttarget;
}
if (hostentry.AddressList != null)
{
ArrayList list = new ArrayList(hostentry.AddressList);
list.Add(address);
hostentry.AddressList = list.ToArray(typeof(IPAddress)) as IPAddress [];
}
else
{
hostentry.AddressList = new IPAddress [] { address };
}
ServiceResolvedEventHandler handler = Resolved;
if (handler != null)
{
handler(this, new ServiceResolvedEventArgs(this));
}
break;
case ServiceType.TXT:
if (TxtRecord != null)
{
TxtRecord.Dispose();
}
TxtRecord = new TxtRecord(rdlen, rdata);
break;
default:
break;
}
sdRef.Deallocate();
}