String defDomain = config.getDefaultDomain();
        if ( defUser != null ) {
            this.defaultCredentials = new NtlmPasswordAuthenticator(defDomain, defUser, defPassword);
        } else {
            this.defaultCredentials = new NtlmPasswordAuthenticator();
        }
    }


    /**
     * {@inheritDoc}
     * 
     * @throws CIFSException
     * 

                    if ( ! ( e.getCause() instanceof RequestTimeoutException ) ) {
                        throw e;
                    }
                }
            }
            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;

        dstIndex += 16;

        if ( this.inputBuffer == null ) {
            SMBUtil.writeInt2(0, dst, inBufferOffsetOffset);
            SMBUtil.writeInt4(0, dst, inBufferLengthOffset);
        }
        else {
            SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, inBufferOffsetOffset);
            int len = this.inputBuffer.encode(dst, dstIndex);
            SMBUtil.writeInt4(len, dst, inBufferLengthOffset);

        String maxVer = p.getProperty("jcifs.smb.client.maxVersion");

        if ( minVer != null || maxVer != null ) {
            initProtocolVersions(minVer, maxVer);
        }
        else {
            boolean smb2 = Config.getBoolean(p, "jcifs.smb.client.enableSMB2", true);
            boolean nosmb1 = Config.getBoolean(p, "jcifs.smb.client.disableSMB1", false);

        dstIndex += 4;

        if ( this.fileName == null ) {
            SMBUtil.writeInt2(0, dst, fnOffsetOffset);
            SMBUtil.writeInt2(0, dst, fnLengthOffset);
        }
        else {
            byte[] fnBytes = this.fileName.getBytes(StandardCharsets.UTF_16LE);
            SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, fnOffsetOffset);
            SMBUtil.writeInt2(fnBytes.length, dst, fnLengthOffset);