public BindHandler(AddressFamily family)
{
EndPoint localEP = null;
NetworkInfo networkInfo = null;
switch (family)
{
case AddressFamily.InterNetwork:
localEP = new IPEndPoint(IPAddress.Any, 0);
networkInfo = NetUtilities.GetDefaultIPv4NetworkInfo();
break;
case AddressFamily.InterNetworkV6:
localEP = new IPEndPoint(IPAddress.IPv6Any, 0);
networkInfo = NetUtilities.GetDefaultIPv6NetworkInfo();
break;
default:
_replyCode = SocksProxyReplyCode.AddressTypeNotSupported;
_bindEP = new IPEndPoint(IPAddress.Any, 0);
break;
}
if (localEP != null)
{
if (networkInfo == null)
{
_replyCode = SocksProxyReplyCode.NetworkUnreachable;
_bindEP = new IPEndPoint(IPAddress.Any, 0);
}
else
{
_socket = new Socket(localEP.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
_socket.Bind(localEP);
_socket.Listen(1);
_socket.NoDelay = true;
_replyCode = SocksProxyReplyCode.Succeeded;
_bindEP = new IPEndPoint(networkInfo.LocalIP, (_socket.LocalEndPoint as IPEndPoint).Port);
}
}
}
public DnsClient(bool preferIPv6 = false)
{
_preferIPv6 = preferIPv6;
NetworkInfo defaultNetworkInfo;
if (_preferIPv6)
{
defaultNetworkInfo = NetUtilities.GetDefaultIPv6NetworkInfo();
if ((defaultNetworkInfo == null) || (defaultNetworkInfo.Interface.GetIPProperties().DnsAddresses.Count == 0))
{
defaultNetworkInfo = NetUtilities.GetDefaultIPv4NetworkInfo();
}
}
else
{
defaultNetworkInfo = NetUtilities.GetDefaultIPv4NetworkInfo();
}
if (defaultNetworkInfo == null)
{
throw new DnsClientException("No default network connection was found on this computer.");
}
IPAddressCollection servers = defaultNetworkInfo.Interface.GetIPProperties().DnsAddresses;
if (servers.Count == 0)
{
throw new DnsClientException("Default network does not have any DNS server configured.");
}
_servers = new NameServerAddress[servers.Count];
for (int i = 0; i < servers.Count; i++)
{
_servers[i] = new NameServerAddress(servers[i]);
}
}