GetHostEntryOrAddressesCore() [1/2]

static object System.Net.Dns.GetHostEntryOrAddressesCore ( IPAddress address, bool justAddresses, AddressFamily addressFamily, ValueStopwatch stopwatch )

inlinestaticprivate

Definition at line 415 of file Dns.cs.

    {
        if (!stopwatch.IsActive)
        {
            stopwatch = NameResolutionTelemetry.Log.BeforeResolution(address);
        }
        string text;
        try
        {
            text = NameResolutionPal.TryGetNameInfo(address, out var errorCode, out var nativeErrorCode);
            if (errorCode != 0)
            {
                if (System.Net.NetEventSource.Log.IsEnabled())
                {
                    System.Net.NetEventSource.Error(address, $"{address} DNS lookup failed with {errorCode}", "GetHostEntryOrAddressesCore");
                }
                throw SocketExceptionFactory.CreateSocketException(errorCode, nativeErrorCode);
            }
        }
        catch when (LogFailure(stopwatch))
        {
            throw;
        }
        NameResolutionTelemetry.Log.AfterResolution(stopwatch, successful: true);
        stopwatch = NameResolutionTelemetry.Log.BeforeResolution(text);
        object result;
        try
        {
            string hostName;
            string[] aliases;
            IPAddress[] addresses;
            int nativeErrorCode2;
            SocketError errorCode = NameResolutionPal.TryGetAddrInfo(text, justAddresses, addressFamily, out hostName, out aliases, out addresses, out nativeErrorCode2);
            if (errorCode != 0 && System.Net.NetEventSource.Log.IsEnabled())
            {
                System.Net.NetEventSource.Error(address, $"forward lookup for '{text}' failed with {errorCode}", "GetHostEntryOrAddressesCore");
            }
            result = (justAddresses ? ((object)addresses) : ((object)new IPHostEntry
            {
                HostName = hostName,
                Aliases = aliases,
                AddressList = addresses
            }));
        }
        catch when (LogFailure(stopwatch))
        {
            throw;
        }
        NameResolutionTelemetry.Log.AfterResolution(stopwatch, successful: true);
        return result;
    }

References System.Net.Internals.SocketExceptionFactory.CreateSocketException(), System.Net.NetEventSource.Error(), System.Net.NetEventSource.Log, System.Net.NameResolutionTelemetry.Log, System.Net.Dns.LogFailure(), System.text, System.Net.NameResolutionPal.TryGetAddrInfo(), and System.Net.NameResolutionPal.TryGetNameInfo().