Opc.Ua.Com.ComUtils.IsLocalHost C# (CSharp) Method

		private static bool IsLocalHost(string hostName)
		{
			// lookup requested host.
		    IPHostEntry requestedHost = Dns.GetHostEntry(hostName);

		    if (requestedHost == null || requestedHost.AddressList == null)
		    {
			    return true;
		    }

	        // check for loopback.
	        for (int ii = 0; ii < requestedHost.AddressList.Length; ii++)
	        {
		        IPAddress requestedIP = requestedHost.AddressList[ii];

		        if (requestedIP == null || requestedIP.Equals(IPAddress.Loopback))
		        {
			        return true;
		        }
	        }

	        // lookup local host.
	        IPHostEntry localHost = Dns.GetHostEntry(Dns.GetHostName());

	        if (localHost == null || localHost.AddressList == null)
	        {
		        return false;
	        }
    		
	        // check for localhost.
	        for (int ii = 0; ii < requestedHost.AddressList.Length; ii++)
	        {
		        IPAddress requestedIP = requestedHost.AddressList[ii];

		        for (int jj = 0; jj < localHost.AddressList.Length; jj++)
		        {
			        if (requestedIP.Equals(localHost.AddressList[jj]))
			        {
				        return true;
			        }
		        }
	        }

	        // must be remote.
	        return false;
		}