public static void ThrowException(this DnsServiceErrorType error, string context)
{
if (error == DnsServiceErrorType.NoError)
{
return;
}
throw new Exception("Bonjour error from " + context + ": " + error);
}
private void RegisterCallback(IntPtr handle, DnsServiceFlags flags, DnsServiceErrorType errorCode, string name, string regType, string domain, IntPtr context)
{
Console.WriteLine("Register result: " + errorCode);
if (errorCode == DnsServiceErrorType.NoError)
{
string key = name.Trim('.') + "." + regType.Trim('.') + "." + domain.Trim('.');
lock (m_handles)
m_handles[key] = handle;
}
}
private void BrowseCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string serviceName, string regType, string domain, IntPtr context)
{
errorCode.ThrowException("BrowseCallback");
Dictionary <string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(h, out deviceList))
{
return;
}
var device = new BonjourDevice {
DeviceId = serviceName, IsComplete = false, Error = DnsServiceErrorType.NoError
};
lock (deviceList)
deviceList[serviceName] = device;
IntPtr handle;
var r = Interop.DNSServiceResolve(out handle, DnsServiceFlags.Default | DnsServiceFlags.ForceMulticast, ifIndex, serviceName, regType, domain, resolveCallback, h);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
return;
}
lock (deviceList)
deviceList["0x" + handle.ToString("X")] = device;
try
{
if (!Interop.DNSServiceHasData(handle, TimeSpan.FromSeconds(5)))
{
return;
}
r = Interop.DNSServiceProcessResult(handle);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
return;
}
}
finally
{
lock (deviceList)
deviceList.Remove("0x" + handle.ToString("X"));
Interop.DNSServiceRefDeallocate(handle);
}
}
private void RegisterCallback(IntPtr handle, DnsServiceFlags flags, DnsServiceErrorType errorCode, string name, string regType, string domain, IntPtr context)
{
Console.WriteLine("Register result: " + errorCode);
if (errorCode == DnsServiceErrorType.NoError)
{
string key = name.Trim('.') + "." + regType.Trim('.') + "." + domain.Trim('.');
lock (m_handles)
m_handles[key] = handle;
}
}
private void BrowseCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string serviceName, string regType, string domain, IntPtr context)
{
errorCode.ThrowException("BrowseCallback");
Dictionary<string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(h, out deviceList)) return;
var device = new BonjourDevice { DeviceId = serviceName, IsComplete = false, Error = DnsServiceErrorType.NoError };
lock (deviceList)
deviceList[serviceName] = device;
IntPtr handle;
var r = Interop.DNSServiceResolve(out handle, DnsServiceFlags.Default | DnsServiceFlags.ForceMulticast, ifIndex, serviceName, regType, domain, resolveCallback, h);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
return;
}
lock (deviceList)
deviceList["0x" + handle.ToString("X")] = device;
try
{
if (!Interop.DNSServiceHasData(handle, TimeSpan.FromSeconds(5))) return;
r = Interop.DNSServiceProcessResult(handle);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
return;
}
}
finally
{
lock (deviceList)
deviceList.Remove("0x" + handle.ToString("X"));
Interop.DNSServiceRefDeallocate(handle);
}
}
private static void QueryPtrCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string fullName, DnsServiceType rrType, DnsServiceClass rrClass, ushort dataLen, byte[] data, uint ttl, IntPtr context)
{
Dictionary<string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(context, out deviceList)) return;
BonjourDevice device;
lock (deviceList)
if (!deviceList.TryGetValue(fullName, out device)) return;
if (errorCode != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
device.Host.Address = new IPAddress(data);
device.IsComplete = true;
}
private void ResolveCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string fullName, string hostTarget, ushort port, ushort txtLen, byte[] txtRecord, IntPtr context)
{
Dictionary<string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(context, out deviceList)) return;
BonjourDevice device;
lock (deviceList)
if (!deviceList.TryGetValue("0x" + h.ToString("X"), out device)) return;
if (errorCode != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
var hostPort = (ushort)IPAddress.NetworkToHostOrder((short)port);
device.Host = new System.Net.IPEndPoint(0, hostPort);
var txt = txtRecord.FromArray();
device.Name = txt["DvNm"];
device.PairCode = txt["Pair"];
IntPtr handle;
var r = Interop.DNSServiceQueryRecord(out handle, DnsServiceFlags.Default | DnsServiceFlags.ForceMulticast, ifIndex, hostTarget, DnsServiceType.A, DnsServiceClass.IN, queryPtrCallback, context);
if (r != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
lock (deviceList)
deviceList[hostTarget] = device;
try
{
if (!Interop.DNSServiceHasData(handle, TimeSpan.FromSeconds(5))) return;
r = Interop.DNSServiceProcessResult(handle);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
}
}
finally
{
Interop.DNSServiceRefDeallocate(handle);
lock (deviceList)
deviceList.Remove(hostTarget);
}
}
private static void QueryPtrCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string fullName, DnsServiceType rrType, DnsServiceClass rrClass, ushort dataLen, byte[] data, uint ttl, IntPtr context)
{
Dictionary <string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(context, out deviceList))
{
return;
}
BonjourDevice device;
lock (deviceList)
if (!deviceList.TryGetValue(fullName, out device))
{
return;
}
if (errorCode != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
device.Host.Address = new IPAddress(data);
device.IsComplete = true;
}
private void ResolveCallback(IntPtr h, DnsServiceFlags flags, int ifIndex, DnsServiceErrorType errorCode, string fullName, string hostTarget, ushort port, ushort txtLen, byte[] txtRecord, IntPtr context)
{
Dictionary <string, BonjourDevice> deviceList;
lock (lookups)
if (!lookups.TryGetValue(context, out deviceList))
{
return;
}
BonjourDevice device;
lock (deviceList)
if (!deviceList.TryGetValue("0x" + h.ToString("X"), out device))
{
return;
}
if (errorCode != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
var hostPort = (ushort)IPAddress.NetworkToHostOrder((short)port);
device.Host = new System.Net.IPEndPoint(0, hostPort);
var txt = txtRecord.FromArray();
device.Name = txt["DvNm"];
device.PairCode = txt["Pair"];
IntPtr handle;
var r = Interop.DNSServiceQueryRecord(out handle, DnsServiceFlags.Default | DnsServiceFlags.ForceMulticast, ifIndex, hostTarget, DnsServiceType.A, DnsServiceClass.IN, queryPtrCallback, context);
if (r != DnsServiceErrorType.NoError)
{
device.Error = errorCode;
return;
}
lock (deviceList)
deviceList[hostTarget] = device;
try
{
if (!Interop.DNSServiceHasData(handle, TimeSpan.FromSeconds(5)))
{
return;
}
r = Interop.DNSServiceProcessResult(handle);
if (r != DnsServiceErrorType.NoError)
{
device.Error = r;
}
}
finally
{
Interop.DNSServiceRefDeallocate(handle);
lock (deviceList)
deviceList.Remove(hostTarget);
}
}
