* @param host the hostname or IP address string
     * @param port the port number
     * @param path the path (should start with "/" or be empty)
     * @return the complete URL string
     */
    public static String buildUrl(final String protocol, final String host, final int port, final String path) {
        if (protocol == null || host == null) {
            return null;
        }

        Sem sem;
        String host, scope;
        int type;
        NbtAddress ans = null;
        InetAddress svr;
        UnknownHostException uhe;

        QueryThread(final Sem sem, final String host, final int type, final String scope, final InetAddress svr) {
            super("JCIFS-QueryThread: " + host);
            this.sem = sem;
            this.host = host;
            this.type = type;

    /**
     * Gets the active external host IP address for active mode FTP.
     *
     * @return The active external host IP address
     */
    public String getActiveExternalHost() {
        return activeExternalHost;
    }

    /**
     * Sets the active external host IP address for active mode FTP.
     *
     * @param activeExternalHost The active external host IP address
     */

        URL url1 = new URL(null, "smb://host/share", handler);
        URL url2 = new URL(null, "smb://host:1234/share/file.txt", handler);
        URL url3 = new URL(null, "smb://user:pass@host/share", handler);

        // Assert - Verify URL components
        assertEquals("smb", url1.getProtocol());
        assertEquals("host", url1.getHost());
        assertEquals(445, url1.getPort());

    }

    /**
     * Extracts the virtual host key from a RelatedContent entity.
     * If the virtual host is blank or null, returns an empty string.
     * This key is used to organize related content by virtual host.
     *
     * @param entity the RelatedContent entity to extract the host key from
     * @return the virtual host key, or empty string if not specified
     */

                    this.addresses = this.ctx.getNameServiceClient().getAllByName(host, true);
                } else {
                    this.addresses = this.ctx.getNameServiceClient().getAllByName(host, false);
                }
            } catch (final UnknownHostException e) {
                throw new CIFSException("Failed to lookup address for name " + host, e);
            }
        }

        return getNextAddress();

            // Validate host
            String host = url.getHost();
            if (host == null || host.isEmpty()) {
                throw new SmbException("SMB URL missing host");
            }

            // Validate host format
            if (!isValidHost(host)) {
                throw new SmbException("Invalid host in SMB URL");
            }

/**
 * NTLMSSP AV pair representing single host information in NTLM authentication.
 * Contains host-specific data used during the NTLM challenge-response process.
 *
 * @author mbechler
 */
public class AvSingleHost extends AvPair {

    /**
     * Constructs an AvSingleHost from raw byte data
     *
     * @param raw the raw byte data for the single host AV pair
     */
    public AvSingleHost(final byte[] raw) {

     * @return instance for type, null if the type cannot be unwrapped
     */
    <T extends Address> T unwrap(Class<T> type);

    /**
     * Gets the host name of this address.
     *
     * @return the resolved host name, or the host address if it could not be resolved
     */
    String getHostName();

    /**
     * Return the IP address as text such as "192.168.1.15".
     *

    }

    // Happy path: session retrieval with host/domain variations
    @ParameterizedTest
    @DisplayName("getSmbSession(ctx,host,domain) returns session for various inputs")
    @CsvSource({ "server,DOMAIN", "server,", ",DOMAIN", "," })
    void getSmbSession_withTarget(String host, String domain) {