TryGetNameInfo()

static unsafe string System.Net.NameResolutionPal.TryGetNameInfo ( IPAddress addr, out SocketError errorCode, out int nativeErrorCode )

inlinestatic

Definition at line 228 of file NameResolutionPal.cs.

    {
        global::Interop.Winsock.EnsureInitialized();
        SocketAddress socketAddress = new IPEndPoint(addr, 0).Serialize();
        Span<byte> span = ((socketAddress.Size > 64) ? ((Span<byte>)new byte[socketAddress.Size]) : stackalloc byte[64]);
        Span<byte> span2 = span;
        for (int i = 0; i < socketAddress.Size; i++)
        {
            span2[i] = socketAddress[i];
        }
        char* ptr = stackalloc char[1025];
        fixed (byte* pSockaddr = span2)
        {
            errorCode = global::Interop.Winsock.GetNameInfoW(pSockaddr, socketAddress.Size, ptr, 1025, null, 0, 4);
        }
        if (errorCode == SocketError.Success)
        {
            nativeErrorCode = 0;
            return new string(ptr);
        }
        nativeErrorCode = (int)errorCode;
        return null;
    }

References System.Net.IPEndPoint.Serialize(), and System.Net.SocketAddress.Size.

Referenced by System.Net.Dns.GetHostEntryOrAddressesCore().