public static class unicode_string extends NdrObject {

        public short length;
        public short maximum_length;
        public short[] buffer;


        @Override
        public void encode ( NdrBuffer _dst ) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_short(this.length);
            _dst.enc_ndr_short(this.maximum_length);
            _dst.enc_ndr_referent(this.buffer, 1);

    }
    public void encode_in(NdrBuffer buf) throws NdrException {
        buf.enc_ndr_short(max_xmit);
        buf.enc_ndr_short(max_recv);
        buf.enc_ndr_long(0); /* assoc. group */
        buf.enc_ndr_small(1); /* num context items */
        buf.enc_ndr_small(0); /* reserved */
        buf.enc_ndr_short(0); /* reserved2 */
        buf.enc_ndr_short(0); /* context id */
        buf.enc_ndr_small(1); /* number of items */

        int len = str.length();
        int zt = zterm ? 1 : 0;

        length = maximum_length = (short)((len + zt) * 2);
        buffer = new short[len + zt];

        int i;
        for (i = 0; i < len; i++) {
            buffer[i] = (short)str.charAt(i);
        }
        if (zterm) {
            buffer[i] = (short)0;
        }
    }

    public String toString() {
        int len = length / 2 - (zterm ? 1 : 0);

    public int dec_ndr_small() {
        int val = buf[index] & 0xFF;
        advance(1);
        return val;
    }
    public void enc_ndr_short(int s) {
        align(2);
        Encdec.enc_uint16le((short)s, buf, index);
        advance(2);
    }
    public int dec_ndr_short() {
        align(2);
        int val = Encdec.dec_uint16le(buf, index);
        advance(2);
        return val;
    }

                buf.start = off;
                buf.reset();
                msg.encode_header(buf);
                buf.enc_ndr_long(msg.alloc_hint);
                buf.enc_ndr_short(0); /* context id */
                buf.enc_ndr_short(msg.getOpnum());
            }

            if ( ( msg.flags & DCERPC_LAST_FRAG ) != DCERPC_LAST_FRAG ) {
                // all fragment but the last get written using read/write semantics

        this.server.serverTime = SMBUtil.readTime(buffer, bufferIndex);
        bufferIndex += 8;
        int tzOffset = SMBUtil.readInt2(buffer, bufferIndex);
        // tzOffset is signed!
        if ( tzOffset > Short.MAX_VALUE ) {
            tzOffset = -1 * ( 65536 - tzOffset );
        }
        this.server.serverTimeZone = tzOffset;
        bufferIndex += 2;
        this.server.encryptionKeyLength = buffer[ bufferIndex++ ] & 0xFF;

     */
    public static int readn ( InputStream in, byte[] b, int off, int len ) throws IOException {
        int i = 0, n = -5;

        if ( off + len > b.length ) {
            throw new IOException("Buffer too short, bufsize " + b.length + " read " + len);
        }

        while ( i < len ) {
            n = in.read(b, off + i, len - i);
            if ( n <= 0 ) {
                break;
            }
            i += n;

            }
            name.length = (short)_src.dec_ndr_short();
            name.maximum_length = (short)_src.dec_ndr_short();
            int _name_bufferp = _src.dec_ndr_long();
            _src.align(4);
            if (dns_domain == null) {
                dns_domain = new rpc.unicode_string();
            }
            dns_domain.length = (short)_src.dec_ndr_short();

            }
            this.name.length = (short) _src.dec_ndr_short();
            this.name.maximum_length = (short) _src.dec_ndr_short();
            int _name_bufferp = _src.dec_ndr_long();
            _src.align(4);
            if ( this.dns_domain == null ) {
                this.dns_domain = new rpc.unicode_string();
            }
            this.dns_domain.length = (short) _src.dec_ndr_short();

            _src.align(4);
            if ( this.name == null ) {
                this.name = new rpc.unicode_string();
            }
            this.name.length = (short) _src.dec_ndr_short();
            this.name.maximum_length = (short) _src.dec_ndr_short();
            int _name_bufferp = _src.dec_ndr_long();

            if ( _name_bufferp != 0 ) {
                _src = _src.deferred;