SecretKeySpec dataKey = new SecretKeySpec(dataHmac, KerberosConstants.RC4_ALGORITHM);

        cipher = Cipher.getInstance(KerberosConstants.RC4_ALGORITHM);
        cipher.init(Cipher.DECRYPT_MODE, dataKey);

        int plainDataLength = data.length - KerberosConstants.CHECKSUM_SIZE;
        byte[] plainData = cipher.doFinal(data, KerberosConstants.CHECKSUM_SIZE, plainDataLength);

     * @param key
     * @throws GeneralSecurityException
     */
    private static void verifyAESMAC ( int usage, String expect, String data, String key ) throws GeneralSecurityException {
        verifyAESHMAC(usage, expect, key, Hex.decode(data));
    }


    private static void verifyArcfourHMAC ( int usage, String expect, String data, String key ) throws GeneralSecurityException {

        }

        key = key.toLowerCase(Locale.ROOT);

        Iterator<String> iter = refs.map.keySet().iterator();
        int searchLen = key.length();
        while ( iter.hasNext() ) {
            String cachedKey = iter.next();
            int cachedKeyLen = cachedKey.length();

            boolean match = false;
            if ( cachedKeyLen == searchLen ) {

        int origBufferSize = ctx.getConfig().getMaximumBufferSize();
        // odd buffer size that does match the alignment
        int tryBufferSize = 1023;
        final int bufSize[] = new int[] {
            origBufferSize
        };
        ctx = withConfig(ctx, new DelegatingConfiguration(ctx.getConfig()) {

            @Override
            public int getMaximumBufferSize () {

                    // only have second precision
                    // there seems to be some random factor (adding one second)
                    int diff = Math.abs((int) ( ( time / 1000 ) - ( f.lastModified() / 1000 ) ));
                    Assert.assertTrue("Have set time correctly", diff < 2);
                }
                else {

    protected String netbiosHostname;
    protected int netbiosCachePolicy = 60 * 60 * 10;
    protected int netbiosSocketTimeout = 5000;
    protected int netbiosSendBufferSize = 576;
    protected int netbiosRevcBufferSize = 576;
    protected int netbiosRetryCount = 2;
    protected int netbiosRetryTimeout = 3000;
    protected String netbiosScope;
    protected int netbiosLocalPort = 0;

                }
            }
            finally {
                f.delete();
            }
        }
    }


    @Test
    public void testCopyFile () throws IOException {
        int bufSize = 65536;
        long length = 4096 * 16;
        try ( SmbFile f = createTestFile() ) {
            try ( SmbFile d1 = createTestDirectory();
                  SmbFile t = new SmbFile(d1, makeRandomName()) ) {

    int getReceiveBufferSize ();


    /**
     * 
     * Property <tt>jcifs.smb.client.snd_buf_size</tt> (int, default 65535)
     * 
     * @return send buffer size, in bytes
     */
    int getSendBufferSize ();


    /**
     * 
     * Property <tt>jcifs.smb.client.soTimeout</tt> (int, default 35000)
     * 
     * @return socket timeout, in milliseconds
     */
    int getSoTimeout ();

    }


    /**
     * @param stackTrace
     * @return
     */
    private static StackTraceElement[] truncateTrace ( StackTraceElement[] stackTrace ) {

        int s = 2;
        int e = stackTrace.length;

        for ( int i = s; i < e; i++ ) {
            StackTraceElement se = stackTrace[ i ];

    private static final Logger log = LoggerFactory.getLogger(AndXServerMessageBlock.class);

    private static final int ANDX_COMMAND_OFFSET = 1;
    private static final int ANDX_RESERVED_OFFSET = 2;
    private static final int ANDX_OFFSET_OFFSET = 3;

    private byte andxCommand = (byte) 0xFF;
    private int andxOffset = 0;

    private ServerMessageBlock andx;