// 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() ) {
                    Smb2WriteRequest request = new Smb2WriteRequest(th.getConfig(), fh.getFileId());

        return dstIndex - start;
    }
    int writeDataWireFormat( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        writeTime( createTime, dst, dstIndex ); dstIndex += 8;
        writeInt8( 0L, dst, dstIndex ); dstIndex += 8;
        writeTime( lastWriteTime, dst, dstIndex ); dstIndex += 8;
        writeInt8( 0L, dst, dstIndex ); dstIndex += 8;
/* Samba 2.2.7 needs ATTR_NORMAL
 */

        // ensure file is open
        if( file.isOpen() == false ) {
            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;

        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);

		return
	}
	if z.Update == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = z.Update.EncodeMsg(en)
		if err != nil {
			err = msgp.WrapError(err, "Update")
			return
		}
	}
	// write "f"
	err = en.Append(0xa1, 0x66)
	if err != nil {
		return
	}
	if z.Final == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {

        ensureOpen();

        if( file.log.level >= 4 )
            file.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 );
    reqx.writeMode = 0x8;

	err = en.Append(0xa2, 0x6c, 0x75)
	if err != nil {
		return
	}
	err = en.WriteTime(z.LastUpdate)
	if err != nil {
		err = msgp.WrapError(err, "LastUpdate")
		return
	}
	// write "dec"
	err = en.Append(0xa3, 0x64, 0x65, 0x63)
	if err != nil {
		return
	}
	if z.Decommission == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = z.Decommission.EncodeMsg(en)

        PropertyDoc readWriteProperty = propertyDoc('readWriteProperty', readable: true, writeable: true)
        PropertyDoc readOnlyProperty = propertyDoc('readOnlyProperty', readable: true, writeable: false)
        PropertyDoc writeOnlyProperty = propertyDoc('writeOnlyProperty', readable: false, writeable: true)
        _ * classDoc.classProperties >> [readWriteProperty, readOnlyProperty, writeOnlyProperty]

	if err != nil {
		return
	}
	if z.Err == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = en.WriteString(*z.Err)
		if err != nil {
			err = msgp.WrapError(err, "Err")
			return
		}
	}
	// write "t"
	err = en.Append(0xa1, 0x74)
	if err != nil {
		return
	}
	err = en.WriteTime(z.T)
	if err != nil {
		err = msgp.WrapError(err, "T")
		return

	// write "end"
	err = en.Append(0x8d, 0xa3, 0x65, 0x6e, 0x64)
	if err != nil {
		return
	}
	err = en.WriteTime(z.ended)
	if err != nil {
		err = msgp.WrapError(err, "ended")
		return
	}
	// write "st"
	err = en.Append(0xa2, 0x73, 0x74)
	if err != nil {
		return
	}
	err = en.WriteTime(z.started)
	if err != nil {
		err = msgp.WrapError(err, "started")
		return
	}
	// write "lh"