/**
     * Check whether a hostname is actually an ip address
     * 
     * @param hostname
     * @return whether this is an IP address
     */
    public static boolean isDotQuadIP ( String hostname ) {
        if ( Character.isDigit(hostname.charAt(0)) ) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = hostname.length();

            char[] data;

            i = dots = 0;                    /* quick IP address validation */
            len = hostname.length();
            data = hostname.toCharArray();
            while( i < len && Character.isDigit( data[i++] )) {
                if( i == len && dots == 3 ) {
                    // probably an IP address
                    return true;
                }

    /**
     * 
     * @return the resolved host name, or the host address if it could not be resolved
     */
    String getHostName ();


    /**
     * Return the IP address as text such as "192.168.1.15".
     * 
     * @return the ip address
     */
    String getHostAddress ();


    /**
     * 
     * @return this address as an InetAddress
     * @throws UnknownHostException
     */

            if ( b > 0xFF ) {
                return doNameQuery(name, svr);
            }
            IP = ( IP << 8 ) + b;
            hitDots++;
        }
        if ( hitDots != 4 || host.endsWith(".") ) {
            return doNameQuery(name, svr);
        }
        return new NbtAddress(getUnknownName(), IP, false, NbtAddress.B_NODE);
    }


    @Override

        /* JCIFS will build a composite list of shares if the target host has
         * multiple IP addresses such as when domain-based DFS is in play. Because
         * of this, to ensure that we query each IP individually without re-resolving
         * the hostname and getting a different IP, we must use the current addresses
         * IP rather than just url.getHost() like we were using prior to 1.2.16.
         */

                    nfe.printStackTrace( log );
            }
        }
        return def;
    }

    /** 
     * Retrieve an <code>InetAddress</code>. If the address is not
     * an IP address and cannot be resolved <code>null</code> will
     * be returned.
     */

    public static InetAddress getInetAddress( String key, InetAddress def ) {
        String addr = prp.getProperty( key );

            }
            else if ( Character.isDigit(line.charAt(0)) ) {
                char[] data = line.toCharArray();
                int ip, i, j;
                Name name;
                NbtAddress addr;
                char c;

                c = '.';
                ip = i = 0;
                for ( ; i < data.length && c == '.'; i++ ) {
                    int b = 0x00;

     * 
     * 1) IP Address - If a dot-quad IP string is used with getByName (or used
     * to create an NbtAddress internal to this netbios package), no query is
     * sent on the wire and the only state this object has is it's IP address
     * (but that's enough to connect to a host using *SMBSERVER for CallingName).
     * 
     * 2) IP Address, NetBIOS name, nodeType, groupName - If however a

 * 
 * 1) IP Address - If a dot-quad IP string is used with getByName (or used
 * to create an NbtAddress internal to this netbios package), no query is
 * sent on the wire and the only state this object has is it's IP address
 * (but that's enough to connect to a host using *SMBSERVER for CallingName).
 * 
 * 2) IP Address, NetBIOS name, nodeType, groupName - If however a

    /**
     * Retrieve all addresses of a host by it's address. NetBIOS hosts can
     * have many names for a given IP address. The name and IP address make the
     * NetBIOS address. This provides a way to retrieve the other names for a
     * host with the same IP address.
     *
     * @param addr
     *            the address to query
     * @return resolved addresses
     * @throws UnknownHostException