internal static void ClearCache()
{
fCache.Clear();
fLMHosts = null;
}
private static IPAddress ResolveInLmHosts(string netbios)
{
if(fLMHosts == null)
{
string url = null;
try
{
if(Debug.DebugOn && Debug.DebugLevel >= Debug.Info)
Debug.WriteLine(Debug.Info, "Check name in LMHOSTS");
// Make this user-configurable later...
url = Environment.SystemDirectory + @"\drivers\etc\lmhosts";
fLMHosts = new LmHosts(url);
}
catch(IOException)
{
Debug.WriteLine(Debug.Warning, "LMHOSTS file cannot be read: " + url);
return null;
}
}
string ip = fLMHosts.Lookup(netbios);
if(ip != null)
{
try
{
return Dns.GetHostByName(ip).AddressList[0];
//return DNS.InetAddr(ip); // This converts the string into an instance of IPAddress
}
catch(Exception)
{
}
}
return null;
}