List<AvPair> pairs = new LinkedList<>();
        int pos = 0;
        boolean foundEnd = false;
        while ( pos + 4 <= data.length ) {
            int avId = SMBUtil.readInt2(data, pos);
            int avLen = SMBUtil.readInt2(data, pos + 2);
            pos += 4;

            if ( avId == AvPair.MsvAvEOL ) {
                if ( avLen != 0 ) {

    /**
     * Current position in file
     * 
     * @return current position
     */
    long getFilePointer ();


    /**
     * Seek to new position
     * 
     * @param pos
     */
    void seek ( long pos );


    /**
     * Get the current file length
     * 
     * @return file length
     * @throws SmbException
     */
    long length () throws SmbException;


    /**

            pos += 8;

            if ( ( flags & NTLMSSP_NEGOTIATE_VERSION ) != 0 ) {
                System.arraycopy(NTLMSSP_VERSION, 0, type1, pos, NTLMSSP_VERSION.length);
                pos += NTLMSSP_VERSION.length;
            }

            pos += writeSecurityBufferContent(type1, pos, domOffOff, domain);
            pos += writeSecurityBufferContent(type1, pos, wsOffOff, workstation);

        return offset + 4;
    }


    static int writeSecurityBufferContent ( byte[] dest, int pos, int off, byte[] src ) {
        writeULong(dest, off, pos);
        if ( src != null && src.length > 0 ) {
            System.arraycopy(src, 0, dest, pos, src.length);
            return src.length;
        }
        return 0;
    }


    static String getOEMEncoding () {