int start = dstIndex;
        byte[] descr;
        int which = subCommand == NET_SERVER_ENUM2 ? 0 : 1;

        try {
            descr = DESCR[which].getBytes( "ASCII" );
        } catch( UnsupportedEncodingException uee ) {
            return 0;
        }

        writeInt2( subCommand & 0xFF, dst, dstIndex );
        dstIndex += 2;

                Type1Message type1 = new Type1Message(src);
                Type2Message type2 = new Type2Message(tc, type1, challenge, null);
                msg = new String(Base64.encode(type2.toByteArray()), "US-ASCII");
                resp.setHeader("WWW-Authenticate", "NTLM " + msg);
            }
            else if ( src[ 8 ] == 3 ) {
                Type3Message type3 = new Type3Message(src);

                ssn.removeAttribute("NtlmHttpChal");
            }
            else {
                String auth = new String(Base64.decode(msg.substring(6)), "US-ASCII");
                int index = auth.indexOf(':');
                String user = ( index != -1 ) ? auth.substring(0, index) : auth;
                String password = ( index != -1 ) ? auth.substring(index + 1) : "";

        try {
            this.service = new String(buffer, bufferIndex, len, "ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }
        bufferIndex += len + 1;
        // win98 observed not returning nativeFileSystem
        /*
         * Problems here with iSeries returning ASCII even though useUnicode = true

        buf.enc_ndr_small(5); /* RPC version */
        buf.enc_ndr_small(0); /* minor version */
        buf.enc_ndr_small(ptype);
        buf.enc_ndr_small(flags);
        buf.enc_ndr_long(0x00000010); /* Little-endian / ASCII / IEEE */
        buf.enc_ndr_short(length);
        buf.enc_ndr_short(0); /* length of auth_value */
        buf.enc_ndr_long(call_id);
    }
    void decode_header(NdrBuffer buf) throws NdrException {

        buf.enc_ndr_small(0); /* minor version */
        buf.enc_ndr_small(this.ptype);
        buf.enc_ndr_small(this.flags);
        buf.enc_ndr_long(0x00000010); /* Little-endian / ASCII / IEEE */
        buf.enc_ndr_short(this.length);
        buf.enc_ndr_short(0); /* length of auth_value */
        buf.enc_ndr_long(this.call_id);
    }


    void decode_header ( NdrBuffer buf ) throws NdrException {

        return derived;
    }


    /**
     * @param string
     * @return null terminated ASCII bytes
     */
    private static byte[] toCBytes ( String string ) {
        byte[] data = new byte[string.length() + 1];
        System.arraycopy(string.getBytes(StandardCharsets.US_ASCII), 0, data, 0, string.length());
        return data;
    }

    }


    @Override
    protected int writeParametersWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;
        byte[] descr;

        try {
            descr = DESCR.getBytes("ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }

        SMBUtil.writeInt2(NET_SHARE_ENUM, dst, dstIndex);
        dstIndex += 2;

    static final int FLAGS_TARGET_MUST_BE_FILE         = 0x0001; 
    static final int FLAGS_TARGET_MUST_BE_DIRECTORY    = 0x0002; 
    static final int FLAGS_COPY_TARGET_MODE_ASCII      = 0x0004; 
    static final int FLAGS_COPY_SOURCE_MODE_ASCII      = 0x0008;
    static final int FLAGS_VERIFY_ALL_WRITES           = 0x0010; 
    static final int FLAGS_TREE_COPY                   = 0x0020; 

    // open function

        int start = dstIndex;
        byte[] descr;
        int which = getSubCommand() == NET_SERVER_ENUM2 ? 0 : 1;

        try {
            descr = DESCR[ which ].getBytes("ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }

        SMBUtil.writeInt2(getSubCommand() & 0xFF, dst, dstIndex);
        dstIndex += 2;