0,
            SmbConstants.DEFAULT_SHARING);
    }


    SmbFileOutputStream ( SmbFile file, boolean append, int openFlags, int access, int sharing ) throws SmbException {
        this.file = file;
        this.append = append;
        this.openFlags = openFlags;
        this.sharing = sharing;
        this.access = access | SmbConstants.FILE_WRITE_DATA;

    private SmbPipeOutputStream output;
    private SmbPipeInputStream input;

    private final String uncPath;

    private SmbTreeHandleImpl treeHandle;

    private int sharing = SmbConstants.DEFAULT_SHARING;


    /**
     * @param pipe
     */
    public SmbPipeHandleImpl ( SmbNamedPipe pipe ) {
        this.pipe = pipe;

     * this file is open. This constant may be logically OR'd with other share
     * access flags.
     */
    static final int FILE_SHARE_DELETE = 0x04;
    /**
     * Default sharing mode for files
     */
    static final int DEFAULT_SHARING = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;

    /**
     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <tt>SmbFile</tt>

write, and/or delete the file while the jCIFS user has the file open.
 * 
 * @param url An smb URL representing the file to write to
 * @param shareAccess File sharing flag: <code>SmbFile.FILE_NOSHARE</code> or any combination of <code>SmbFile.FILE_READ</code>, <code>SmbFile.FILE_WRITE</code>, and <code>SmbFile.FILE_DELETE</code>
 */

     * 
     * @param challenge The server challenge.
     * @return A <code>byte[]</code> containing the effective user session key,
     * used in SMB MAC signing and NTLMSSP signing and sealing.
     */
    public byte[] getUserSessionKey(byte[] challenge) {
        if (hashesExternal) return null;
        byte[] key = new byte[16];
        try {
            getUserSessionKey(challenge, key, 0); 

        this(file, 0, SmbConstants.O_RDONLY, SmbConstants.DEFAULT_SHARING, false);
    }


    SmbFileInputStream ( SmbFile file, int openFlags, int access, int sharing, boolean unshared ) throws SmbException {
        this.file = file;
        this.unsharedFile = unshared;
        this.openFlags = openFlags;
        this.access = access;
        this.sharing = sharing;

     * Indicates datagram authentication.
     */
    public static final int NTLMSSP_NEGOTIATE_DATAGRAM_STYLE = 0x00000040;

    /**
     * Indicates that the LAN Manager session key should be used for
     * signing and sealing authenticated communication.
     */
    public static final int NTLMSSP_NEGOTIATE_LM_KEY = 0x00000080;

    /**
     * ??? According to spec this is a reserved bit and must be set to zero
     */

    // Access Mode Encoding for desiredAccess
    private static final int SHARING_COMPATIBILITY           = 0x00;
    private static final int SHARING_DENY_READ_WRITE_EXECUTE = 0x10;
    private static final int SHARING_DENY_WRITE              = 0x20;
    private static final int SHARING_DENY_READ_EXECUTE       = 0x30;
    private static final int SHARING_DENY_NONE               = 0x40;

                    }
                }
            }
            else if ( trans.hasCapability(SmbConstants.CAP_NT_SMBS) ) {
                int flags = SmbConstants.O_CREAT;
                int sharing = SmbConstants.FILE_SHARE_DELETE | SmbConstants.FILE_SHARE_READ | SmbConstants.FILE_SHARE_WRITE;
                int access = SmbConstants.FILE_READ_DATA | SmbConstants.FILE_READ_ATTRIBUTES | SmbConstants.FILE_WRITE_ATTRIBUTES

    private static final String S2C_SEAL_CONSTANT = "session key to server-to-client sealing key magic constant";

    private static final String C2S_SIGN_CONSTANT = "session key to client-to-server signing key magic constant";
    private static final String C2S_SEAL_CONSTANT = "session key to client-to-server sealing key magic constant";

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