protected virtual void OnResolved()
{
ServiceResolvedEventHandler handler = Resolved;
if (handler != null)
{
handler(this, new ServiceResolvedEventArgs(this));
}
}
private void OnResolveReply(ServiceRef sdRef, ServiceFlags flags, uint interfaceIndex,
ServiceError errorCode, IntPtr fullname, string hosttarget, ushort port, ushort txtLen,
IntPtr txtRecord, IntPtr contex)
{
is_resolved = true;
resolve_pending = false;
InterfaceIndex = interfaceIndex;
FullName = Native.Utf8toString(fullname);
this.port = (ushort)IPAddress.NetworkToHostOrder((short)port);
TxtRecord = new TxtRecord(txtLen, txtRecord);
this.hosttarget = hosttarget;
sdRef.Deallocate();
// Run an A query to resolve the IP address
ServiceRef sd_ref;
if (AddressProtocol == AddressProtocol.Any || AddressProtocol == AddressProtocol.IPv4)
{
ServiceError error = Native.DNSServiceQueryRecord(out sd_ref, ServiceFlags.None, interfaceIndex,
hosttarget, ServiceType.A, ServiceClass.IN, query_record_reply_handler, IntPtr.Zero);
if (error != ServiceError.NoError)
{
throw new ServiceErrorException(error);
}
sd_ref.Process();
}
if (AddressProtocol == AddressProtocol.Any || AddressProtocol == AddressProtocol.IPv6)
{
ServiceError error = Native.DNSServiceQueryRecord(out sd_ref, ServiceFlags.None, interfaceIndex,
hosttarget, ServiceType.AAAA, ServiceClass.IN, query_record_reply_handler, IntPtr.Zero);
if (error != ServiceError.NoError)
{
throw new ServiceErrorException(error);
}
sd_ref.Process();
}
if (hostentry.AddressList != null)
{
ServiceResolvedEventHandler handler = Resolved;
if (handler != null)
{
handler(this, new ServiceResolvedEventArgs(this));
}
}
}
private void OnServiceResolved(object o, AV.ServiceInfoArgs args)
{
service = args.Service;
((AV.ServiceResolver)o).Dispose();
ServiceResolvedEventHandler handler = Resolved;
if (handler != null)
{
handler(this, new ServiceResolvedEventArgs(this));
}
}
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();
}
private static void OnQueryRecordReply(ServiceRef sdRef, ServiceFlags flags, uint interfaceIndex,
ServiceError errorCode, string fullname, ServiceType rrtype, ServiceClass rrclass, ushort rdlen,
IntPtr rdata, uint ttl, IntPtr context)
{
var handle = GCHandle.FromIntPtr(context);
var browseService = handle.Target as BrowseService;
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 (browseService.hostentry == null)
{
browseService.hostentry = new IPHostEntry();
browseService.hostentry.HostName = browseService.hosttarget;
}
if (browseService.hostentry.AddressList != null)
{
ArrayList list = new ArrayList(browseService.hostentry.AddressList);
list.Add(address);
browseService.hostentry.AddressList = list.ToArray(typeof(IPAddress)) as IPAddress [];
}
else
{
browseService.hostentry.AddressList = new IPAddress [] { address };
}
Log.To.Discovery.V(Tag, "Query record reply received for {0} (0x{1})", browseService, sdRef.Raw.ToString("X"));
ServiceResolvedEventHandler handler = browseService._resolved;
if (handler != null)
{
handler(browseService, new ServiceResolvedEventArgs(browseService));
}
break;
case ServiceType.TXT:
if (browseService.TxtRecord != null)
{
browseService.TxtRecord.Dispose();
}
browseService.TxtRecord = new TxtRecord(rdlen, rdata);
break;
default:
break;
}
sdRef.Deallocate();
}