// ensure file is open
        if (!file.isOpen()) {
            file.open(openFlags, 0, SmbFile.ATTR_NORMAL, options);
        }

        int w;
        do {
            w = len > writeSize ? writeSize : len;
            file.send(new SmbComWriteAndX(file.fid, fp, len - w, b, off, w, null), write_andx_resp);
            fp += write_andx_resp.count;
            len -= write_andx_resp.count;

        }

        // ensure file is open
        try (SmbFileHandleImpl fh = ensureOpen(); SmbTreeHandleImpl th = fh.getTree()) {
            int w;
            do {
                w = len > this.writeSize ? this.writeSize : len;
                long cnt;

                if (th.isSMB2()) {
                    final Smb2WriteRequest request = new Smb2WriteRequest(th.getConfig(), fh.getFileId());

        long maxTime = System.currentTimeMillis() + 1000000000000L;
        SMBUtil.writeTime(maxTime, buffer, 8); // creationTime
        SMBUtil.writeTime(maxTime, buffer, 16); // lastAccessTime
        SMBUtil.writeTime(maxTime, buffer, 24); // lastWriteTime
        SMBUtil.writeTime(maxTime, buffer, 32); // changeTime
        SMBUtil.writeInt8(Long.MAX_VALUE, buffer, 40); // endOfFile

            dos.writeInt(Integer.reverseBytes(3)); // 3 buffers
            dos.writeInt(Integer.reverseBytes(PacConstants.PAC_VERSION));

            // Write buffer entries
            dos.writeInt(Integer.reverseBytes(PacConstants.LOGON_INFO));
            dos.writeInt(Integer.reverseBytes(10));
            dos.writeLong(Long.reverseBytes(100));

        // Use SMBUtil to properly encode times in Windows FILETIME format
        SMBUtil.writeTime(TEST_CREATE_TIME, buffer, bufferIndex);
        SMBUtil.writeTime(TEST_LAST_ACCESS_TIME, buffer, bufferIndex + 8);
        SMBUtil.writeTime(TEST_LAST_WRITE_TIME, buffer, bufferIndex + 16);
        SMBUtil.writeTime(TEST_CHANGE_TIME, buffer, bufferIndex + 24);
        SMBUtil.writeInt4(TEST_ATTRIBUTES, buffer, bufferIndex + 32);

        final int start = dstIndex;
        SMBUtil.writeTime(this.createTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.lastAccessTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.lastWriteTime, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeTime(this.changeTime, dst, dstIndex);
        dstIndex += 8;

        final int sendBufferSize = th.getSendBufferSize();
        if (this.smb2) {
            this.writeSize = sendBufferSize;
            this.writeSizeFile = sendBufferSize;
            return;
        }

        this.openFlags &= ~(SmbConstants.O_CREAT | SmbConstants.O_TRUNC); /* in case we close and reopen */
        this.writeSize = sendBufferSize - 70;

        this.useNTSmbs = th.hasCapability(SmbConstants.CAP_NT_SMBS);

        SMBUtil.writeInt4(createAction, body, i); // CreateAction
        i += 4;

        SMBUtil.writeTime(ctime, body, i); // CreationTime
        i += 8;
        SMBUtil.writeTime(atime, body, i); // LastAccessTime
        i += 8;
        SMBUtil.writeTime(mtime, body, i); // LastWriteTime
        i += 8;
        SMBUtil.writeTime(chtime, body, i); // ChangeTime
        i += 8;

        // Entry 1
        writeInt4(120, buffer, bufferIndex); // nextEntryOffset = 120 (relative)
        writeInt4(1, buffer, bufferIndex + 4); // fileIndex = 1
        writeTime(1672531200000L, buffer, bufferIndex + 8); // creationTime
        writeTime(1672617600000L, buffer, bufferIndex + 24); // lastWriteTime
        writeInt8(2048, buffer, bufferIndex + 40); // endOfFile

        if (LogStream.level >= 4) {
            SmbFile.log.println("write: fid=" + file.fid + ",off=" + off + ",len=" + len);
        }

        int w;
        do {
            w = len > writeSize ? writeSize : len;
            if (useNTSmbs) {
                reqx.setParam(file.fid, fp, len - w, b, off, w);
                if ((flags & 1) != 0) {
                    reqx.setParam(file.fid, fp, len, b, off, w);