/**
     * 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 */

     */

    public static UniAddress getByName( String hostname )
                                        throws UnknownHostException {
        return getByName( hostname, false );
    }

    static boolean isDotQuadIP( String hostname ) {
        if( Character.isDigit( hostname.charAt( 0 ))) {
            int i, len, dots;
            char[] data;

            i = dots = 0;                    /* quick IP address validation */

        if ( hostname == null || hostname.length() == 0 ) {
            throw new UnknownHostException();
        }

        if ( UniAddress.isDotQuadIP(hostname) ) {
            return new UniAddress[] {
                new UniAddress(getNbtByName(hostname))
            };
        }

        if ( log.isTraceEnabled() ) {