// When
            int opnum = bind.getOpnum();

            // Then
            assertEquals(0, opnum, "Opnum should always be 0 for bind messages");
        }

        @Test
        @DisplayName("getOpnum should be consistent across multiple calls")
        void testGetOpnumConsistency() {
            // When
            int opnum1 = bind.getOpnum();
            int opnum2 = bind.getOpnum();

     *
     * @param address the NetBIOS address to connect to
     * @param port the remote port number, or 0 for the default NetBIOS session service port
     * @param localAddr the local address to bind to
     * @param localPort the local port to bind to
     * @throws IOException if an I/O error occurs while creating the socket
     */

     *
     * @param tc
     *            context to use
     * @param address the server address
     * @param port the port number
     * @param localAddr the local address to bind to
     * @param localPort the local port to bind to
     * @param hostName the server host name
     * @param exclusive
     *            whether to acquire an unshared connection
     * @return a transport connection to the target
     */

        return new AbstractModule() {
            @Override
            protected void configure() {
                bind(ILoggerFactory.class).toInstance(context.loggerFactory);
                bind(CoreExports.class).toInstance(exports);
                bind(MessageBuilderFactory.class).toInstance(context.invokerRequest.messageBuilderFactory());
            }
        };
    }

    /**
     * Fault packet type - indicates an error
     */
    int RPC_PT_FAULT = 0x03;
    /**
     * Bind packet type - establishes context
     */
    int RPC_PT_BIND = 0x0B;
    /**
     * Bind acknowledgment packet type
     */
    int RPC_PT_BIND_ACK = 0x0C;
    /**
     * Bind negative acknowledgment packet type
     */
    int RPC_PT_BIND_NAK = 0x0D;
    /**
     * Alter context packet type

     * @throws DcerpcException if the bind operation fails
     * @throws IOException if an I/O error occurs
     */
    public void bind() throws DcerpcException, IOException {
        synchronized (this) {
            try {
                state = 1;
                final DcerpcMessage bind = new DcerpcBind(binding, this);
                sendrecv(bind);
            } catch (final IOException ioe) {

            this.binder = binder;
        }

        @Override
        protected <U> Injector bind(Key<U> key, Binding<U> binding) {
            super.bind(key, binding);
            if (key.getQualifier() != null) {
                com.google.inject.Key<U> k = toGuiceKey(key);
                this.binder.bind(k).toProvider(new BridgeProvider<>(binding));
            }
            return this;
        }

        assertTrue(result.contains("connect=80"), "toString should contain connect option.");
        assertTrue(result.contains("bind=123"), "toString should contain bind option.");
    }

    @Test
    void testToStringWithEndpointAndOptions() throws DcerpcException {
        String endpoint = "\\pipe\\srvsvc";
        dcerpcBinding.setOption("endpoint", endpoint);
        dcerpcBinding.setOption("connect", "80");

        throw new DcerpcException("DCERPC transport not supported: " + url);
    }

    /**
     * Bind the handle
     *
     * @throws DcerpcException
     *            if there is a DCE/RPC protocol error
     * @throws IOException
     *            if there is an I/O error during binding
     */
    public void bind() throws DcerpcException, IOException {
        synchronized (this) {
            try {

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.dcerpc;

import jcifs.dcerpc.ndr.NdrBuffer;
import jcifs.dcerpc.ndr.NdrException;

/**
 * DCE/RPC bind request message implementation.
 * This class handles the binding process for establishing DCE/RPC communication channels.
 *
 * @author mbechler
 */
public class DcerpcBind extends DcerpcMessage {