package jcifs;

/**
 * Interface for objects that can be encoded to a byte buffer.
 * This interface provides methods for serializing data to SMB protocol messages.
 *
 * @author mbechler
 */
public interface Encodable {

    /**
     * Encodes this object into the specified byte array.
     *
     * @param dst the destination byte array to encode into
     * @param dstIndex the starting index in the destination array

        ByteEncodable encodable = new ByteEncodable(data, 1, 3);

        // Verify size
        assertEquals(3, encodable.size(), "Size should be equal to the specified length");
    }

    @Test
    void testEncodeBasic() {
        // Test basic encoding
        byte[] data = { 0x01, 0x02, 0x03, 0x04, 0x05 };
        ByteEncodable encodable = new ByteEncodable(data, 1, 3);

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;

import jcifs.util.ByteEncodable;

@DisplayName("Encodable contract tests using ByteEncodable")
class EncodableTest {

    // Generates a few representative slices and destination indices.
    static Stream<Arguments> byteEncodableArgs() {
        return Stream.of(

    /**
     * Test that FileInformation can be used as both Decodable and Encodable
     */
    @Test
    @DisplayName("Test FileInformation as both Decodable and Encodable")
    void testFileInformationAsDecodableAndEncodable() throws SMBProtocolDecodingException {
        FileInformation fileInfo = new FileEndOfFileInformation(2048L);

        // Test as Encodable
        assertTrue(fileInfo instanceof jcifs.Encodable);

    private final int controlCode;
    private final byte[] outputBuffer;
    private int maxOutputResponse;
    private int maxInputResponse;
    private int flags;
    private Encodable inputData;
    private Encodable outputData;

    /**
     * Constructs an SMB2 IOCTL request with an unspecified file ID
     * @param config the client configuration
     * @param controlCode the IOCTL control code
     */

     * {@inheritDoc}
     *
     * @see jcifs.Decodable#decode(byte[], int, int)
     */
    @Override
    public int decode(final byte[] buffer, final int bufferIndex, final int len) throws SMBProtocolDecodingException {
        this.endOfFile = SMBUtil.readInt8(buffer, bufferIndex);
        return 8;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Encodable#size()
     */
    @Override

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 SRV_COPYCHUNK data structure. This structure represents a single chunk specification
 * for server-side copy operations.
 *
 * @author mbechler
 *
 */
public class SrvCopychunk implements Encodable {

    private final long sourceOffset;
    private final long targetOffset;

 */
package jcifs.internal.smb2.ioctl;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 SRV_COPYCHUNK_COPY data structure. This structure is used to perform server-side
 * copy operations with multiple chunk specifications.
 *
 * @author mbechler
 *
 */
public class SrvCopychunkCopy implements Encodable {

    private final byte[] sourceKey;

 */
package jcifs.util;

import jcifs.Encodable;

/**
 * Interface for objects that can be encoded to byte arrays.
 * Provides standardized method for converting objects to their binary representation.
 *
 * @author mbechler
 */
public class ByteEncodable implements Encodable {

    private final byte[] bytes;
    private final int off;
    private final int len;

 */
package jcifs.internal.smb2.create;

import jcifs.Encodable;

/**
 * SMB2 Create Context request interface. This interface defines the contract for
 * context data included in SMB2 Create requests.
 *
 * @author mbechler
 *
 */
public interface CreateContextRequest extends Encodable {

    /**
     * Get the name of this create context.
     * @return context name as byte array