public static async Task<IPEndPoint> ToIPEndPointAsync (this Target self)
{
EndPoint endPoint = self.ToEndPoint();
IPEndPoint ipEndPoint = endPoint as IPEndPoint;
if (ipEndPoint != null)
return ipEndPoint;
var dns = endPoint as DnsEndPoint;
if (dns == null)
throw new ArgumentException();
#if !WINDOWS_PHONE
try {
IPHostEntry entry = await Dns.GetHostEntryAsync (dns.Host).ConfigureAwait (false);
return new IPEndPoint (entry.AddressList.First(), dns.Port);
} catch (SocketException) {
return null;
}
#else
var helper = new DnsHelper();
IAsyncResult result = helper.BeginGetHostEntry (dns.Host, null, null);
var addresses = await Task<IEnumerable<IPAddress>>.Factory.FromAsync (result, helper.EndGetHostEntry).ConfigureAwait (false);
var address = addresses.FirstOrDefault();
if (address == null)
return null;
return new IPEndPoint (address, dns.Port);
#endif
}
public static async Task <IPEndPoint> ToIPEndPointAsync(this Target self)
{
EndPoint endPoint = self.ToEndPoint();
IPEndPoint ipEndPoint = endPoint as IPEndPoint;
if (ipEndPoint != null)
{
return(ipEndPoint);
}
var dns = endPoint as DnsEndPoint;
if (dns == null)
{
throw new ArgumentException();
}
#if !WINDOWS_PHONE
try {
IPHostEntry entry = await Dns.GetHostEntryAsync(dns.Host).ConfigureAwait(false);
return(new IPEndPoint(entry.AddressList.First(), dns.Port));
} catch (SocketException) {
return(null);
}
#else
var helper = new DnsHelper();
IAsyncResult result = helper.BeginGetHostEntry(dns.Host, null, null);
var addresses = await Task <IEnumerable <IPAddress> > .Factory.FromAsync(result, helper.EndGetHostEntry).ConfigureAwait(false);
var address = addresses.FirstOrDefault();
if (address == null)
{
return(null);
}
return(new IPEndPoint(address, dns.Port));
#endif
}