private void GetHostAddressesCallback(IAsyncResult ar)
{
// Make sure the request was still relevant
if ((ar.AsyncState as string) != Text)
{
try
{
_ = Dns.EndGetHostAddresses(ar);
}
catch { }
return;
}
Resolving = false;
IpAddresses = null;
try
{
IpAddresses = Dns.EndGetHostAddresses(ar).Where(a =>
a.AddressFamily == AddressFamily.InterNetwork ||
a.AddressFamily == AddressFamily.InterNetworkV6);
}
catch (SocketException) { }
if (IpAddresses == null || !IpAddresses.Any())
{
OnResolveFailed(Text);
ForeColor = ErrorForeColor;
return;
}
ResolvedSuccessfully = true;
OnResolveSuccessful(Text, IpAddresses);
}
public bool IsWhitelisted(IPAddress ip)
{
return(IpAddresses.Any(x => x.Equals(ip)));
}