assertEquals((byte) 0x00, buf[2], "Reserved byte must be 0");
        assertEquals((byte) 0xDE, buf[3], "Sentinel low offset when no chaining");
        assertEquals((byte) 0xDE, buf[4], "Sentinel high offset when no chaining");
        assertNull(block.andx, "andx should be cleared when not chaining");
    }

    @Test

        SMBUtil.writeInt2(83, buffer, 36); // andxOffset (33 + 50)
        SMBUtil.writeInt2(20, buffer, 42); // byteCount

        // Setup andx command data at offset 83 (absolute position from buffer start)
        buffer[83] = 2; // andx wordCount
        SMBUtil.writeInt2(10, buffer, 88); // andx byteCount

        int length = testBlock.decode(buffer, 0);

        assertTrue(length > 0);

    // flags is NOT the same as flags member

    SmbComOpenAndX(final String fileName, final int access, final int flags, final ServerMessageBlock andx) {
        super(andx);
        this.path = fileName;
        command = SMB_COM_OPEN_ANDX;

        desiredAccess = access & 0x3;
        if (desiredAccess == 0x3) {

        command = SMB_COM_WRITE_ANDX;
    }

    SmbComWriteAndX(final int fid, final long offset, final int remaining, final byte[] b, final int off, final int len,
            final ServerMessageBlock andx) {
        super(andx);
        this.fid = fid;
        this.offset = offset;
        this.remaining = remaining;
        this.b = b;
        this.off = off;
        dataLength = len;
        command = SMB_COM_WRITE_ANDX;

        // SMB_COM_LOGOFF_ANDX = 0x74
        assertEquals((byte) 0x74, msg.command, "Command should be SMB_COM_LOGOFF_ANDX");
    }

    @Test
    @DisplayName("constructor with mock andx properly sets andx field")
    void constructorWithMockAndx() {
        // Create a mock ServerMessageBlock
        ServerMessageBlock mockAndx = mock(ServerMessageBlock.class);

    private String nativeFileSystem = "";

    /**
     * Constructs a tree connect AndX response.
     *
     * @param config the configuration to use
     * @param andx the next command in the AndX chain, or null
     */
    public SmbComTreeConnectAndXResponse(final Configuration config, final ServerMessageBlock andx) {
        super(config, andx);
    }

    /**
     * @return the service
     */
    @Override

/**
 * SMB1 Read AndX request message.
 *
 * This command is used to read data from a file that has been
 * previously opened with an Open command.
 */
public class SmbComReadAndX extends AndXServerMessageBlock {

    private long offset;
    private int fid;
    int openTimeout;
    int maxCount, minCount, remaining;

    /**
     * Constructs a Read AndX request.
     *

            batchLimits[8] = Byte.parseByte(s);
        }
    }

    SmbComTreeConnectAndX(final SmbSession session, final String path, final String service, final ServerMessageBlock andx) {
        super(andx);
        this.session = session;
        this.path = path;
        this.service = service;
        command = SMB_COM_TREE_CONNECT_ANDX;
    }

    @Override
    int getBatchLimit(final byte command) {

                        final Smb2TreeConnectRequest req = new Smb2TreeConnectRequest(sess.getConfig(), unc);
                        if (andx != null) {
                            req.chain((ServerMessageBlock2) andx);
                        }
                        request = req;
                    } else {

import jcifs.internal.smb1.AndXServerMessageBlock;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;

/**
 * SMB1 NT Create AndX Response message.
 *
 * This response contains information about the created or opened file,
 * including file handle, attributes, and creation disposition.
 */
public class SmbComNTCreateAndXResponse extends AndXServerMessageBlock implements SmbBasicFileInfo {