/**

 * @test

 * @bug 6997561

 * @summary A request for better error handling in JNDI

 */

import java.net.Socket;

import java.net.ServerSocket;

import java.io.*;

import javax.naming.*;

import javax.naming.directory.*;

import javax.naming.ldap.*;

import java.util.Collections;

import java.util.Hashtable;

public class EmptyNameSearch {

    public static void main(String[] args) throws Exception {

        // Start the LDAP server

        Server s = new Server();

        s.start();

        Thread.sleep(3000);

        // Setup JNDI parameters

        Hashtable env = new Hashtable();

        env.put(Context.INITIAL_CONTEXT_FACTORY,

            "com.sun.jndi.ldap.LdapCtxFactory");

        env.put(Context.PROVIDER_URL, "ldap://localhost:" + s.getPortNumber());

        try {

            // Create initial context

            System.out.println("Client: connecting...");

            DirContext ctx = new InitialDirContext(env);

            System.out.println("Client: performing search...");

            ctx.search(new LdapName(Collections.EMPTY_LIST), "cn=*", null);

            ctx.close();

            // Exit

            throw new RuntimeException();

        } catch (NamingException e) {

            System.err.println("Passed: caught the expected Exception - " + e);

        } catch (Exception e) {

            System.err.println("Failed: caught an unexpected Exception - " + e);

            throw e;

        }

    }

    static class Server extends Thread {

        private int serverPort = 0;

        private byte[] bindResponse = {

            0x30, 0x0C, 0x02, 0x01, 0x01, 0x61, 0x07, 0x0A,

            0x01, 0x00, 0x04, 0x00, 0x04, 0x00

        };

        private byte[] searchResponse = {

            0x30, 0x0C, 0x02, 0x01, 0x02, 0x65, 0x07, 0x0A,

            0x01, 0x02, 0x04, 0x00, 0x04, 0x00

        };

        Server() {

        }

        public int getPortNumber() {

            return serverPort;

        }

        public void run() {

            try {

                ServerSocket serverSock = new ServerSocket(0);

                serverPort = serverSock.getLocalPort();

                System.out.println("Server: listening on port " + serverPort);

                Socket socket = serverSock.accept();

                System.out.println("Server: connection accepted");

                InputStream in = socket.getInputStream();

                OutputStream out = socket.getOutputStream();

                // Read the LDAP BindRequest

                System.out.println("Server: reading request...");

                while (in.read() != -1) {

                    in.skip(in.available());

                    break;

                }

                // Write an LDAP BindResponse

                System.out.println("Server: writing response...");

                out.write(bindResponse);

                out.flush();

                // Read the LDAP SearchRequest

                System.out.println("Server: reading request...");

                while (in.read() != -1) {

                    in.skip(in.available());

                    break;

                }

                // Write an LDAP SearchResponse

                System.out.println("Server: writing response...");

                out.write(searchResponse);

                out.flush();

                in.close();

                out.close();

                socket.close();

                serverSock.close();

            } catch (IOException e) {

                // ignore

            }

        }

    }

}