public UdpDnsResolver(DnsResolverOptions options, IDatagramSocketFactory datagramSocketFactory, IPEndpoint dnsServerEndpoint, Random random = null)
: base(options, dnsServerEndpoint, random)
{
if (datagramSocketFactory == null)
{
throw new ArgumentNullException("datagramSocketFactory");
}
m_datagramSocketFactory = datagramSocketFactory;
}
public UdpDnsResolver(DnsResolverOptions options, IDatagramSocketFactory datagramSocketFactory, IPEndpoint dnsServerEndpoint, Random random = null)
: base(options, dnsServerEndpoint, random)
{
if (datagramSocketFactory == null)
{
throw new ArgumentNullException("datagramSocketFactory");
}
m_datagramSocketFactory = datagramSocketFactory;
}
public TcpDnsResolver(DnsResolverOptions options, IStreamSocketFactory streamSocketFactory, IPEndpoint dnsServerEndpoint, Random random = null)
: base(options, dnsServerEndpoint, random)
{
if (streamSocketFactory == null)
{
throw new ArgumentNullException("streamSocketFactory");
}
m_streamSocketFactory = streamSocketFactory;
}
public TcpDnsResolver(DnsResolverOptions options, IStreamSocketFactory streamSocketFactory, IPEndpoint dnsServerEndpoint, Random random = null)
: base(options, dnsServerEndpoint, random)
{
if (streamSocketFactory == null)
{
throw new ArgumentNullException("streamSocketFactory");
}
m_streamSocketFactory = streamSocketFactory;
}
protected DnsResolverBase(DnsResolverOptions options, IPEndpoint dnsServerEndpoint, Random random = null)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (dnsServerEndpoint == null)
{
throw new ArgumentNullException("dnsServerEndpoint");
}
m_options = options;
m_dnsServerEndpoint = dnsServerEndpoint;
m_sequenceNumber = (ushort)(random ?? new Random()).Next();
}
protected DnsResolverBase(DnsResolverOptions options, IPEndpoint dnsServerEndpoint, Random random = null)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (dnsServerEndpoint == null)
{
throw new ArgumentNullException("dnsServerEndpoint");
}
m_options = options;
m_dnsServerEndpoint = dnsServerEndpoint;
m_sequenceNumber = (ushort)(random ?? new Random()).Next();
}
public void Test_IQUERY_UDP()
{
var sendToInvoked = false;
var receiveInvoked = false;
var disposeInvoked = false;
var datagramSocketFactory = new MockDatagramSocketFactory(
(data, endpoint) =>
{
Assert.IsNotNull(data);
data.ShouldEqual(ExpectedSendData);
Assert.AreEqual("192.168.11.1", endpoint.Address.ToString());
Assert.AreEqual((ushort)53, endpoint.Port);
Assert.IsFalse(sendToInvoked);
Assert.IsFalse(receiveInvoked);
Assert.IsFalse(disposeInvoked);
sendToInvoked = true;
},
buffer =>
{
Assert.IsNotNull(buffer);
Assert.AreEqual(512, buffer.Length);
Assert.IsTrue(sendToInvoked);
Assert.IsFalse(receiveInvoked);
Assert.IsFalse(disposeInvoked);
Array.Copy(ReceivedData, buffer, ReceivedData.Length);
var result = ReceivedData.Length;
receiveInvoked = true;
return result;
},
() =>
{
Assert.IsTrue(sendToInvoked);
Assert.IsTrue(receiveInvoked);
Assert.IsFalse(disposeInvoked);
disposeInvoked = true;
});
var options = new DnsResolverOptions
{
Timeout = 1000,
RetryCount = 3,
Recursion = true,
UseCache = true
};
var resolver = new UdpDnsResolver(
options,
datagramSocketFactory,
new IPEndpoint(IPAddress.Parse("192.168.11.1"), 53), new Random(0));
var response = resolver.Query("167.11.168.192.in-addr.arpa", QType.PTR, QClass.IN);
Assert.AreEqual(0, response.Error.Length);
Assert.AreEqual(1, response.header.ANCOUNT);
Assert.AreEqual(1, response.Answers.Count);
var answerRR = response.Answers.First();
Assert.AreEqual("167.11.168.192.in-addr.arpa.", answerRR.NAME);
Assert.AreEqual(0u, answerRR.TTL);
Assert.AreEqual(Class.IN, answerRR.Class);
Assert.AreEqual(Lanscan.Networking.Dns.RecordType.PTR, answerRR.Type);
Assert.IsInstanceOfType(answerRR.RECORD, typeof(PTRRecord));
var recordPtr = (PTRRecord)answerRR.RECORD;
Assert.AreEqual("alpha.example.com.", recordPtr.PTRDNAME);
Assert.IsTrue(sendToInvoked);
Assert.IsTrue(receiveInvoked);
Assert.IsTrue(disposeInvoked);
}