void GetHost_End(IAsyncResult ar)
{
Connect_SO stateObj = (Connect_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
IPHostEntry host = Dns.EndGetHostByName(ar);
if (null == host)
{
throw new SocketException(SockErrors.WSAHOST_NOT_FOUND);
}
//throw new HostNotFoundException("Unable to resolve host name.");
EndPoint remoteEP = SocketBase.ConstructEndPoint(host, stateObj.Port);
_socket.BeginConnect(remoteEP,
new AsyncCallback(Connect_End),
stateObj);
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}
void GetHostByNameCallback(IAsyncResult ar)
{
IPHostEntry h;
h = Dns.EndGetHostByName(ar);
SubTestValidIPHostEntry(h);
}
public void DnsObsoleteBeginEndGetHostByName_EmptyString_ReturnsHostName()
{
IPHostEntry entry = Dns.EndGetHostByName(Dns.BeginGetHostByName("", null, null));
// DNS labels should be compared as case insensitive for ASCII characters. See RFC 4343.
Assert.Contains(Dns.GetHostName(), entry.HostName, StringComparison.OrdinalIgnoreCase);
}
public void AsyncGetHostByName()
{
IAsyncResult async = Dns.BeginGetHostByName(site1Name, null, null);
IPHostEntry entry = Dns.EndGetHostByName(async);
SubTestValidIPHostEntry(entry);
Assert.AreEqual("google-public-dns-a.google.com", entry.HostName, "#1");
}
public void DnsObsoleteBeginGetHostByName_IPv4String_ReturnsOnlyGivenIP()
{
IAsyncResult asyncObject = Dns.BeginGetHostByName(IPAddress.Loopback.ToString(), null, null);
IPHostEntry entry = Dns.EndGetHostByName(asyncObject);
Assert.Equal(IPAddress.Loopback.ToString(), entry.HostName);
Assert.Equal(1, entry.AddressList.Length);
Assert.Equal(IPAddress.Loopback, entry.AddressList[0]);
}
public void DnsObsoleteBeginGetHostByName_MachineNameWithIPv4_MatchesGetHostByName()
{
IAsyncResult asyncObject = Dns.BeginGetHostByName(TestSettings.LocalHost, null, null);
IPHostEntry result = Dns.EndGetHostByName(asyncObject);
IPHostEntry entry = Dns.GetHostByName(TestSettings.LocalHost);
Assert.Equal(entry.HostName, result.HostName);
Assert.Equal(entry.AddressList, result.AddressList);
}
public void AsyncGetHostByName()
{
IAsyncResult r;
r = Dns.BeginGetHostByName(site1Name, new AsyncCallback(GetHostByNameCallback), null);
IAsyncResult async = Dns.BeginGetHostByName(site1Name, null, null);
IPHostEntry entry = Dns.EndGetHostByName(async);
SubTestValidIPHostEntry(entry);
Assert.AreEqual("www.go-mono.com", entry.HostName);
}
public void AsyncGetHostByName()
{
IAsyncResult r;
r = Dns.BeginGetHostByName(site1Name, new AsyncCallback(GetHostByNameCallback), null);
IAsyncResult async = Dns.BeginGetHostByName(site1Name, null, null);
IPHostEntry entry = Dns.EndGetHostByName(async);
SubTestValidIPHostEntry(entry);
Assert.IsTrue(entry.HostName == "jenkins.mono-project.com");
}
[ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotArm64Process), nameof(PlatformDetection.IsThreadingSupported))] // [ActiveIssue("https://github.com/dotnet/runtime/issues/27622")]
public void DnsObsoleteBeginEndGetHostByName_EmptyString_ReturnsHostName()
{
if (PlatformDetection.IsSLES)
{
// [ActiveIssue("https://github.com/dotnet/runtime/issues/48751")]
return;
}
IPHostEntry entry = Dns.EndGetHostByName(Dns.BeginGetHostByName("", null, null));
// DNS labels should be compared as case insensitive for ASCII characters. See RFC 4343.
Assert.Contains(Dns.GetHostName(), entry.HostName, StringComparison.OrdinalIgnoreCase);
}
public void DnsObsoleteBeginEndGetHostByName_EmptyString_ReturnsHostName()
{
if (PlatformDetection.IsSLES || // [ActiveIssue("https://github.com/dotnet/runtime/issues/55271")]
PlatformDetection.IsUbuntu1604 || PlatformDetection.IsDebian9) // [ActiveIssue("https://github.com/dotnet/runtime/issues/56295")]
{
throw new SkipTestException("Test environment is not configured for this test to work.");
}
IPHostEntry entry = Dns.EndGetHostByName(Dns.BeginGetHostByName("", null, null));
// DNS labels should be compared as case insensitive for ASCII characters. See RFC 4343.
Assert.Contains(Dns.GetHostName(), entry.HostName, StringComparison.OrdinalIgnoreCase);
}
static internal IPHostEntry EndGetHostByName(IAsyncResult ar)
{
IPHostEntry host = null;
try
{
host = Dns.EndGetHostByName(ar);
}
catch (Exception)
{
host = null;
}
return(host);
}
static async Task Main(string[] args)
{
var x = await Dns.GetHostAddressesAsync("localhost");
string hostname = Dns.GetHostName();
var y = Dns.EndGetHostByName(Dns.BeginGetHostByName("", null, null));
Console.WriteLine("My hostname is '{0}'", hostname);
Console.WriteLine("My ip addresses are:");
foreach (var address in Dns.GetHostAddresses(hostname))
{
Console.WriteLine("\t{0}", address);
}
}
private void GetHostByNameCallback(IAsyncResult ar)
{
Dns.EndGetHostByName(ar);
try {
// can we do something bad here ?
Assert.IsNotNull(Environment.GetEnvironmentVariable("USERNAME"));
message = "Expected a SecurityException";
}
catch (SecurityException) {
message = null;
reset.Set();
}
catch (Exception e)
{
message = e.ToString();
}
}
private static void DnsLookupCompleted(IAsyncResult ar)
{
IPHostEntry entry = Dns.EndGetHostByName(ar);
Console.WriteLine("IP Addresses for {0}: ", hostname);
foreach (IPAddress address in entry.AddressList)
{
Console.WriteLine(address.ToString());
}
Console.WriteLine("\nAlias names:");
foreach (string aliasName in entry.Aliases)
{
Console.WriteLine(aliasName);
}
Console.WriteLine("\nAnd the real hostname:");
Console.WriteLine(entry.HostName);
}
private void GetHostByNameSink(IAsyncResult result)
{
IPHostEntry entry = null;
try
{
entry = Dns.EndGetHostByName(result);
}
catch (Exception)
{
return;
}
object[] asyncState = (object[])result.AsyncState;
Uri uri = (Uri)asyncState[0];
object tag = asyncState[1];
this.ContinueRequest(new IPEndPoint(entry.AddressList[0], uri.Port), HTTPMessage.UnEscapeString(uri.PathAndQuery), tag, null);
}
public void AsyncGetHostByNameCallback()
{
var evt = new ManualResetEvent(false);
Exception ex = null;
Dns.BeginGetHostByName(site1Name, new AsyncCallback((IAsyncResult ar) =>
{
try {
IPHostEntry h;
h = Dns.EndGetHostByName(ar);
SubTestValidIPHostEntry(h);
} catch (Exception e) {
ex = e;
} finally {
evt.Set();
}
}), null);
Assert.IsTrue(evt.WaitOne(TimeSpan.FromSeconds(60)), "Wait");
Assert.IsNull(ex, "Exception");
}
private void GetHostEntryCallback(IAsyncResult ar)
{
IPHostEntry iphostEntry = Dns.EndGetHostByName(ar);
Array.Sort <IPAddress>(iphostEntry.AddressList, delegate(IPAddress x, IPAddress y)
{
if (x.AddressFamily < y.AddressFamily)
{
return(-1);
}
if (x.AddressFamily > y.AddressFamily)
{
return(1);
}
return(0);
});
foreach (IPAddress item in iphostEntry.AddressList)
{
this.m_candidateIPAddresses.Enqueue(item);
}
this.ConnectInternal();
}
private void GetHostEntryCallback(IAsyncResult ar)
{
IPHostEntry pHostEntry = Dns.EndGetHostByName(ar);
Array.Sort <IPAddress>(pHostEntry.AddressList, (IPAddress x, IPAddress y) => {
if (x.AddressFamily < y.AddressFamily)
{
return(-1);
}
if (x.AddressFamily > y.AddressFamily)
{
return(1);
}
return(0);
});
IPAddress[] addressList = pHostEntry.AddressList;
for (int i = 0; i < (int)addressList.Length; i++)
{
IPAddress pAddress = addressList[i];
this.m_candidateIPAddresses.Enqueue(pAddress);
}
this.ConnectInternal();
}
private void GetHostEntryCallback(IAsyncResult ar)
{
IPHostEntry iPHostEntry = Dns.EndGetHostByName(ar);
Array.Sort <IPAddress>(iPHostEntry.get_AddressList(), delegate(IPAddress x, IPAddress y)
{
if (x.get_AddressFamily() < y.get_AddressFamily())
{
return(-1);
}
if (x.get_AddressFamily() > y.get_AddressFamily())
{
return(1);
}
return(0);
});
IPAddress[] addressList = iPHostEntry.get_AddressList();
for (int i = 0; i < addressList.Length; i++)
{
IPAddress iPAddress = addressList[i];
this.m_candidateIPAddresses.Enqueue(iPAddress);
}
this.ConnectInternal();
}
public void DnsObsoleteBeginGetHostByName_BadName_Throws()
{
IAsyncResult asyncObject = Dns.BeginGetHostByName("BadName", null, null);
Assert.ThrowsAny <SocketException>(() => Dns.EndGetHostByName(asyncObject));
}
public void DnsObsoleteBeginEndGetHostByName_EmptyString_ReturnsHostName()
{
IPHostEntry entry = Dns.EndGetHostByName(Dns.BeginGetHostByName("", null, null));
Assert.Contains(Dns.GetHostName(), entry.HostName);
}
public void Deny_EndGetHostByName()
{
Dns.EndGetHostByName(null);
}
