C++ VSocket类代码示例

// Code to be executed by the thread
void *vncHTTPConnectThread::run_undetached(void * arg)
{
    vnclog.Print(LL_INTINFO, VNCLOG("started HTTP server thread\n"));

    // Go into a loop, listening for connections on the given socket
    while (!m_shutdown)
    {
        // Accept an incoming connection
        VSocket *new_socket = m_socket->Accept();
        if (new_socket == NULL)
            break;

        vnclog.Print(LL_CLIENTS, VNCLOG("HTTP client connected\n"));

        // Successful accept - perform the transaction
        new_socket->SetTimeout(15000);
        DoHTTP(new_socket);

        // And close the client
        new_socket->Shutdown();
        new_socket->Close();
        delete new_socket;
    }

    vnclog.Print(LL_INTINFO, VNCLOG("quitting HTTP server thread\n"));

    return NULL;
}

qint64 vsocketDispatcher( char * _buf, const qint64 _len,
                                const SocketOpCodes _op_code, void * _user )
{
	VSocket * sock = static_cast<VSocket *>( _user );
	switch( _op_code )
	{
		case SocketRead: return( sock->ReadExact( _buf, _len ) ?
								_len : 0 );
		case SocketWrite: return( sock->SendExact( _buf, _len ) ?
								_len : 0 );
		case SocketGetPeerAddress:
			strncpy( _buf, sock->GetPeerName(), _len );
			return( 0 );
	}
	return( 0 );

}

vncSockConnect::~vncSockConnect()
{
    m_socket.Shutdown();

    // Join with our lovely thread
    if (m_thread != NULL)
    {
        // *** This is a hack to force the listen thread out of the accept call,
        // because Winsock accept semantics are broken
        ((vncSockConnectThread *)m_thread)->m_shutdown = TRUE;

        VSocket socket;
        socket.Create();
        socket.Bind(0);
        socket.Connect("localhost", m_port);
        socket.Close();

        void *returnval;
        m_thread->join(&returnval);
        m_thread = NULL;

        m_socket.Close();
    }
}

// Code to be executed by the thread
void *vncSockConnectThread::run_undetached(void * arg)
{
	vnclog.Print(LL_STATE, VNCLOG("started socket connection thread\n"));

	// Go into a loop, listening for connections on the given socket
	while (!m_shutdown) {
		// Accept an incoming connection
		VSocket *new_socket;
		if (!m_socket->TryAccept(&new_socket, 100))
			break;
		if (new_socket != NULL) {
			vnclog.Print(LL_CLIENTS, VNCLOG("accepted connection from %s\n"),
						 new_socket->GetPeerName());
			// Successful accept - start the client unauthenticated
			m_server->AddClient(new_socket, FALSE, FALSE);
		}
	}

	vnclog.Print(LL_STATE, VNCLOG("quitting socket connection thread\n"));
	return NULL;
}

//.........这里部分代码省略.........
						if (modulo == 0) {
							strcpy(actualhostname, szToken);
							break;
						}

						modulo--;
						szToken = strtok(NULL, ";");
					}
				}
			}

			// Calculate the Display and Port offset.
			port = INCOMING_PORT_OFFSET;
			portp = strchr(actualhostname, ':');
			if (portp)
			{
				*portp++ = '\0';
				if (*portp == ':') // Tight127 method
				{
					port = atoi(++portp);		// Port number after "::"
				}
				else // RealVNC method
				{
					if (atoi(portp) < 100)		// If < 100 after ":" -> display number
						port += atoi(portp);
					else
						port = atoi(portp);	    // If > 100 after ":" -> Port number
				}
			}


			
			// Attempt to create a new socket
			VSocket *tmpsock;
			tmpsock = new VSocket;
			if (!tmpsock) {
				return TRUE;
			}
			
			// Connect out to the specified host on the VNCviewer listen port
			// To be really good, we should allow a display number here but
			// for now we'll just assume we're connecting to display zero
			tmpsock->Create();
			if (tmpsock->Connect(actualhostname, port))
			{
				if (id) 
					{							
						

						tmpsock->Send(finalidcode,250);
						tmpsock->SetTimeout(0);
/*						if (strncmp(hostname,"ID",2)!=0)
						{
						while (true)
						{
							char result[1];
							tmpsock->Read(result,1);
							if (strcmp(result,"2")==0)
								break;
							tmpsock->Send("1",1);
						}
						}*/
						
						// adzm 2009-07-05 - repeater IDs
						// Add the new client to this server
						// adzm 2009-08-02

//.........这里部分代码省略.........
		if (iMsg == MENU_DEFAULT_PROPERTIES_SHOW)
		{
			// External request to show our Properties dialog
			PostMessage(hwnd, WM_COMMAND, MAKELONG(ID_DEFAULT_PROPERTIES, 0), 0);
			return 0;
		}
		if (iMsg == MENU_ABOUTBOX_SHOW)
		{
			// External request to show our About dialog
			PostMessage(hwnd, WM_COMMAND, MAKELONG(ID_ABOUT, 0), 0);
			return 0;
		}
		if (iMsg == MENU_SERVICEHELPER_MSG)
		{
			// External ServiceHelper message.
			// This message holds a process id which we can use to
			// impersonate a specific user.  In doing so, we can load their
			// preferences correctly

			// vncService::ProcessUserHelperMessage(wParam, lParam);
			// Modif Jeremy C.
			vncService::ProcessUserHelperMessage((WPARAM)&_this->m_server->m_impersonationtoken, lParam); 
			// - Trigger a check of the current user
			PostMessage(hwnd, WM_USERCHANGED, 0, 0);
			return 0;
		}
		if (iMsg == RETRY_MESSAGE)
		{
			connect_counter++;
			if (connect_counter%5==0)
			{
			// Attempt to create a new socket
//			Beep(1000,100);
			VSocket *tmpsock;
			tmpsock = new VSocket;
			if (tmpsock) {

				// Connect out to the specified host on the VNCviewer listen port
				tmpsock->Create();
				if (tmpsock->Connect(szAdrName, nport)) {
					// Add the new client to this server
					
					if (strcmp(g_idcode,"")==NULL) g_id=false;
					else g_id=true;
					char sendID[_MAX_PATH];
					strcpy(sendID,"ID:");
					strcat(sendID,g_idcode);
					if (g_id) 
						tmpsock->Send(sendID,250);
					_this->m_server->AddClient(tmpsock, TRUE, TRUE);
					nport=0;
					connected=1;
					_this->FlashTrayIcon(_this->m_server->AuthClientCount() != 0);
					return 0;
				} else {
					delete tmpsock;
					connect_counter++;
					if (connect_counter>25)
//					Sleep(5000);
					PostMessage(hwnd, WM_CLOSE, 0, 0);
				}
			}
			}
			return 0;
		}
		if (iMsg == MENU_ADD_CLIENT_MSG)

BOOL CALLBACK vncConnDialog::vncConnDlgProc(HWND hwnd,
											UINT uMsg,
											WPARAM wParam,
											LPARAM lParam) {
	// This is a static method, so we don't know which instantiation we're 
	// dealing with. But we can get a pseudo-this from the parameter to 
	// WM_INITDIALOG, which we therafter store with the window and retrieve
	// as follows:
	vncConnDialog *_this = (vncConnDialog *) GetWindowLong(hwnd, GWL_USERDATA);

	switch (uMsg) {

		// Dialog has just been created
	case WM_INITDIALOG:
		{
			// Save the lParam into our user data so that subsequent calls have
			// access to the parent C++ object

      SetWindowLong(hwnd, GWL_USERDATA, lParam);
      vncConnDialog *_this = (vncConnDialog *) lParam;
          
      // Make the text entry box active
      SetFocus(GetDlgItem(hwnd, IDC_HOSTNAME_EDIT));

      // Return success!
			return TRUE;
		}

		// Dialog has just received a command
	case WM_COMMAND:
		switch (LOWORD(wParam)) {

			// User clicked OK or pressed return
		case IDOK:
      {
        char viewer[256];
			  char hostname[256];
        VCard display_or_port;

			  // Get the viewer to connect to
			  GetDlgItemText(hwnd, IDC_HOSTNAME_EDIT, viewer, 256);

        // Process the supplied viewer address
        int result = sscanf(viewer, "%255[^:]:%u", hostname, &display_or_port);
        if (result == 1) {
          display_or_port = 0;
          result = 2;
        }
        if (result == 2) {
          // Correct a display number to a port number if required
          if (display_or_port < 100) {
            display_or_port += INCOMING_PORT_OFFSET;
          }

			    // Attempt to create a new socket
			    VSocket *tmpsock;
			    tmpsock = new VSocket;
			    if (!tmpsock)
				    return TRUE;

			    // Connect out to the specified host on the VNCviewer listen port
			    // To be really good, we should allow a display number here but
			    // for now we'll just assume we're connecting to display zero
			    tmpsock->Create();
			    if (tmpsock->Connect(hostname, display_or_port)) {
				    // Add the new client to this server
				    _this->m_server->AddClient(tmpsock, TRUE, TRUE);

				    // And close the dialog
            EndDialog(hwnd, TRUE);
			    } else {
				    // Print up an error message
				    MessageBox(NULL, 
                        "Failed to connect to listening VNC viewer",
                        "Outgoing Connection",
					    MB_OK | MB_ICONEXCLAMATION );
				    delete tmpsock;
			    }
        } else {
          // We couldn't process the machine specification
          MessageBox(NULL, "Unable to process specified hostname and display/port",
            "Outgoing Connection", MB_OK | MB_ICONEXCLAMATION);
        }
      }
			return TRUE;

			// Cancel the dialog
		case IDCANCEL:
			EndDialog(hwnd, FALSE);
			return TRUE;
		};

		break;

	case WM_DESTROY:
		EndDialog(hwnd, FALSE);
		return TRUE;
	}
	return 0;
}

// Socket connection handling
BOOL
vncServer::SockConnect(BOOL On)
{
	// Are we being asked to switch socket connects on or off?
	if (On)
	{
		// Is there a listening socket?
		if (m_socketConn == NULL)
		{
			m_socketConn = new vncSockConnect();
			if (m_socketConn == NULL)
				return FALSE;

			// Are we to use automatic port selection?
			if (m_autoportselect)
			{
				BOOL ok = FALSE;

				// Yes, so cycle through the ports, looking for a free one!
				for (int i=0; i < 99; i++)
				{
					m_port = DISPLAY_TO_PORT(i);

					vnclog.Print(LL_CLIENTS, VNCLOG("trying port number %d\n"), m_port);

					// Attempt to connect to the port
					VSocket tempsock;
					if (tempsock.Create())
					{
						if (!tempsock.Connect("localhost", m_port))
						{
							// Couldn't connect, so this port is probably usable!
							if (m_socketConn->Init(this, m_port))
							{
								ok = TRUE;
								break;
							}
						}
					}
				}

				if (!ok)
				{
					delete m_socketConn;
					m_socketConn = NULL;
					return FALSE;
				}
			} else
			{
				// No autoportselect
				if (!m_socketConn->Init(this, m_port))
				{
					delete m_socketConn;
					m_socketConn = NULL;
					return FALSE;
				}
			}
		}
	}
	else
	{
		// *** JNW - Trying to fix up a lock-up when the listening socket closes
		KillAuthClients();
		KillUnauthClients();
		WaitUntilAuthEmpty();
		WaitUntilUnauthEmpty();

		// Is there a listening socket?
		if (m_socketConn != NULL)
		{
			// Close the socket
			delete m_socketConn;
			m_socketConn = NULL;
		}
	}

	return TRUE;
}

//.........这里部分代码省略.........
				char *name = inet_ntoa(address);
				if (name == 0)
					return 0;
				nameDup = _strdup(name);
				if (nameDup == 0)
					return 0;
				strcpy(szAdrName, nameDup);
				// Free the duplicate name
				if (nameDup != 0) free(nameDup);

				// Get the port number
				nport = (unsigned short)wParam;
				if (nport == 0)
					nport = INCOMING_PORT_OFFSET;
				
			}

			// [email protected] -- added support for the AutoReconnectId
			// (but it's not required)
			bool bId = ( strlen(_this->m_server->AutoReconnectId() ) > 0);
			if ( bId )
				strcpy( szId, _this->m_server->AutoReconnectId() );
			
			// [email protected]
			// Stores the client adr/ports the first time we try to connect
			// This way we can call this message again later to reconnect with the same values
			if ((_this->m_server->AutoReconnect() || _this->m_server->IdReconnect())&& strlen(_this->m_server->AutoReconnectAdr()) == 0)
			{
				_this->m_server->AutoReconnectAdr(szAdrName);
				_this->m_server->AutoReconnectPort(nport);
			}

			// Attempt to create a new socket
			VSocket *tmpsock;
			tmpsock = new VSocket;
			if (tmpsock) {

				// Connect out to the specified host on the VNCviewer listen port
				tmpsock->Create();
				if (tmpsock->Connect(szAdrName, nport)) {
					if ( bId )
					{
						// [email protected] -- added support for the AutoReconnectId
						// Set the ID for this client -- code taken from vncconndialog.cpp (ln:142)
						tmpsock->Send(szId,250);
						tmpsock->SetTimeout(0);
						
						// adzm 2009-07-05 - repeater IDs
						// Add the new client to this server
						// adzm 2009-08-02
						_this->m_server->AddClient(tmpsock, TRUE, TRUE, 0, NULL, szId, szAdrName, nport);
					} else {
						// Add the new client to this server
						// adzm 2009-08-02
						_this->m_server->AddClient(tmpsock, TRUE, TRUE, 0, NULL, NULL, szAdrName, nport);
					}
				} else {
					delete tmpsock;
					_this->m_server->AutoConnectRetry();
				}
			}
		
			return 0;
		}

		// Process FileTransfer asynchronous Send Packet Message

extern "C" DLLEXPORT /*export without name mangling*/
int WinVNCDll_ListenForClient(PSTR szRemoteClient, PSTR szIdCode)
{
	// Compatible with both RealVNC and TightVNC methods
	char hostname[_MAX_PATH];
	char actualhostname[_MAX_PATH];
	char idcode[_MAX_PATH];
	char *portp;
	int port;
	bool id;

	// Get the hostname of the VNCviewer
	strcpy(hostname, szRemoteClient);
	strcpy(idcode, szIdCode);
	//GetDlgItemText(hwnd, IDC_HOSTNAME_EDIT, hostname, _MAX_PATH);
	//GetDlgItemText(hwnd, IDC_IDCODE, idcode, _MAX_PATH);
	if (strcmp(idcode,"")==0) id=false;
	else id=true;
	strcpy(actualhostname, hostname);
			
	vnclog.Print(LL_STATE, VNCLOG("WinVNCDll_ListenForClient(%s %s)\n"),hostname,idcode);

	//adzm 2010-02-15 - Multiple repeaters chosen by modulo of ID

	char finalidcode[_MAX_PATH];
	//adzm 2010-08 - this was sending uninitialized data over the wire
	ZeroMemory(finalidcode, sizeof(finalidcode));

	//adzm 2009-06-20
	if (id) {
		size_t i = 0;

		for (i = 0; i < strlen(idcode); i++)
		{
			finalidcode[i] = toupper(idcode[i]);
		} 
		finalidcode[i] = 0;

		if (0 != strncmp("ID:", idcode, 3)) {
			strcpy(finalidcode, "ID:");
					
			for (i = 0; i < strlen(idcode); i++)
			{
				finalidcode[i+3] = toupper(idcode[i]);
			} 
			finalidcode[i+3] = 0;
		}
				
		//adzm 2010-02-15 - At this point, finalidcode is of the form "ID:#####"
		int numericId = atoi(finalidcode + 3);

		int numberOfHosts = 1;
		for (i = 0; i < strlen(hostname); i++) {
			if (hostname[i] == ';') {
				numberOfHosts++;
			}
		}

		if (numberOfHosts <= 1) {
			// then hostname == actualhostname
		} else {
			int modulo = numericId % numberOfHosts;

			char* szToken = strtok(hostname, ";");
			while (szToken) {
				if (modulo == 0) {
					strcpy(actualhostname, szToken);
					break;
				}

				modulo--;
				szToken = strtok(NULL, ";");
			}
		}
	}

	// Calculate the Display and Port offset.
	port = INCOMING_PORT_OFFSET;
	portp = strchr(actualhostname, ':');
	if (portp)
	{
		*portp++ = '\0';
		if (*portp == ':') // Tight127 method
		{
			port = atoi(++portp);		// Port number after "::"
		}
		else // RealVNC method
		{
			if (atoi(portp) < 100)		// If < 100 after ":" -> display number
				port += atoi(portp);
			else
				port = atoi(portp);	    // If > 100 after ":" -> Port number
		}
	}
			
	// Attempt to create a new socket
	VSocket *tmpsock;
	tmpsock = new VSocket;
	if (!tmpsock) {
		vnclog.Print(LL_STATE, VNCLOG("Could not create socket\n"));
//.........这里部分代码省略.........

// Socket connection handling
BOOL
vncServer::SockConnect(BOOL On)
{
	// Are we being asked to switch socket connects on or off?
	if (On)
	{
		// Is there a listening socket?
		if (m_socketConn == NULL)
		{
			m_socketConn = new vncSockConnect();
			if (m_socketConn == NULL)
				return FALSE;

			// Are we to use automatic port selection?
			if (m_autoportselect)
			{
				BOOL ok = FALSE;

				// Yes, so cycle through the ports, looking for a free one!
				for (int i = 0; i < 99; i++)
				{
					m_port = DISPLAY_TO_PORT(i);
					m_port_http = DISPLAY_TO_HPORT(i);

					vnclog.Print(LL_CLIENTS, VNCLOG("trying port number %d\n"), m_port);

					// Attempt to connect to the port
					VSocket tempsock;
					if (tempsock.Create())
					{
						if (!tempsock.Connect("localhost", m_port))
						{
							// Couldn't connect, so this port is probably usable!
							if (m_socketConn->Init(this, m_port))
							{
								ok = TRUE;
								break;
							}
						}
					}
				}

				if (!ok)
				{
					delete m_socketConn;
					m_socketConn = NULL;
					return FALSE;
				}
			} else
			{
				// No autoportselect
				if (!m_socketConn->Init(this, m_port))
				{
					delete m_socketConn;
					m_socketConn = NULL;
					return FALSE;
				}
			}

			// Now let's start the HTTP connection stuff
			if (m_port_http == m_port) {
				vnclog.Print(LL_INTERR, VNCLOG("cannot start both RFB and HTTP servers "
											   "on the same port\n"));
			}
            if (m_httpConn == NULL && m_httpd_enabled && m_port_http != m_port) {
				m_httpConn = new vncHTTPConnect;
				if (m_httpConn != NULL) {
					// Start up the HTTP server
					if (!m_httpConn->Init(this, m_port_http,
										  m_httpd_params_enabled)) {
						delete m_httpConn;
						m_httpConn = NULL;
						return FALSE;
					}
				}
			}
		}
	}
	else
	{
		// *** JNW - Trying to fix up a lock-up when the listening socket closes
#ifndef HORIZONLIVE
		KillAuthClients();
		KillUnauthClients();
		WaitUntilAuthEmpty();
		WaitUntilUnauthEmpty();
#endif

		// Is there a listening socket?
		if (m_socketConn != NULL)
		{
			// Close the socket
			delete m_socketConn;
			m_socketConn = NULL;
		}

		// Is there an HTTP socket active?
		if (m_httpConn != NULL)
		{
//.........这里部分代码省略.........

BOOL
vncClientThread::InitVersion()
{
	// Generate the server's protocol version
	rfbProtocolVersionMsg protocolMsg;
	sprintf((char *)protocolMsg,
		rfbProtocolVersionFormat,
		rfbProtocolMajorVersion,
		rfbProtocolMinorVersion);

	// Send the protocol message
	if (!m_socket->SendExact((char *)&protocolMsg, sz_rfbProtocolVersionMsg))
		return FALSE;

	// Now, get the client's protocol version
	rfbProtocolVersionMsg protocol_ver;
	protocol_ver[12] = 0;
	if (!m_socket->ReadExact((char *)&protocol_ver, sz_rfbProtocolVersionMsg))
		return FALSE;

	// Check the protocol version
	int major, minor;
	sscanf((char *)&protocol_ver, rfbProtocolVersionFormat, &major, &minor);
	if (major != rfbProtocolMajorVersion)
		return FALSE;

	return TRUE;
}

void
vncClientThread::run(void *arg)
{
	// All this thread does is go into a socket-recieve loop,
	// waiting for stuff on the given socket

	// IMPORTANT : ALWAYS call RemoveClient on the server before quitting
	// this thread.

	vnclog.Print(LL_CLIENTS, VNCLOG("client connected : %s (%hd)\n"),
								m_client->GetClientName(),
								m_client->GetClientId());

	// Save the handle to the thread's original desktop
	HDESK home_desktop = GetThreadDesktop(GetCurrentThreadId());
	
	// To avoid people connecting and then halting the connection, set a timeout
	if (!m_socket->SetTimeout(30000))
		vnclog.Print(LL_INTERR, VNCLOG("failed to set socket timeout(%d)\n"), GetLastError());

	// Initially blacklist the client so that excess connections from it get dropped
	m_server->AddAuthHostsBlacklist(m_client->GetClientName());

	// LOCK INITIAL SETUP
	// All clients have the m_protocol_ready flag set to FALSE initially, to prevent
	// updates and suchlike interfering with the initial protocol negotiations.

	// GET PROTOCOL VERSION
	if (!InitVersion())
	{
		m_server->RemoveClient(m_client->GetClientId());
		return;
	}
	vnclog.Print(LL_INTINFO, VNCLOG("negotiated version\n"));

	// AUTHENTICATE LINK
	if (!InitAuthenticate())
	{
		m_server->RemoveClient(m_client->GetClientId());
		return;
	}

	// Authenticated OK - remove from blacklist and remove timeout
	m_server->RemAuthHostsBlacklist(m_client->GetClientName());
	m_socket->SetTimeout(m_server->AutoIdleDisconnectTimeout()*1000);
	vnclog.Print(LL_INTINFO, VNCLOG("authenticated connection\n"));

	// INIT PIXEL FORMAT

	// Get the screen format
	m_client->m_fullscreen = m_client->m_encodemgr.GetSize();

	// Get the name of this desktop
	char desktopname[MAX_COMPUTERNAME_LENGTH+1];
	DWORD desktopnamelen = MAX_COMPUTERNAME_LENGTH + 1;
	if (GetComputerName(desktopname, &desktopnamelen))
	{
		// Make the name lowercase
		for (int x=0; x<strlen(desktopname); x++)
		{
			desktopname[x] = tolower(desktopname[x]);
		}
	}
	else
	{
		strcpy(desktopname, "WinVNC");
	}

	// Send the server format message to the client
	rfbServerInitMsg server_ini;
	server_ini.format = m_client->m_encodemgr.m_buffer->GetLocalFormat();

	// Endian swaps
	server_ini.framebufferWidth = Swap16IfLE(m_client->m_fullscreen.br.x);
	server_ini.framebufferHeight = Swap16IfLE(m_client->m_fullscreen.br.y);
	server_ini.format.redMax = Swap16IfLE(server_ini.format.redMax);
	server_ini.format.greenMax = Swap16IfLE(server_ini.format.greenMax);
	server_ini.format.blueMax = Swap16IfLE(server_ini.format.blueMax);

	server_ini.nameLength = Swap32IfLE(strlen(desktopname));
	if (!m_socket->SendExact((char *)&server_ini, sizeof(server_ini)))
	{
		m_server->RemoveClient(m_client->GetClientId());
		return;
	}
	if (!m_socket->SendExact(desktopname, strlen(desktopname)))
	{
		m_server->RemoveClient(m_client->GetClientId());
		return;
	}
	vnclog.Print(LL_INTINFO, VNCLOG("sent pixel format to client\n"));

	// UNLOCK INITIAL SETUP
	// Initial negotiation is complete, so set the protocol ready flag
	m_client->EnableProtocol();
	
	// Add a fullscreen update to the client's update list
  { omni_mutex_lock l(m_client->GetUpdateLock());
	  m_client->m_update_tracker.add_changed(m_client->m_fullscreen);
  }
//.........这里部分代码省略.........

BOOL
vncClientThread::InitAuthenticate()
{
	// Retrieve the local password
	char password[MAXPWLEN];
	m_server->GetPassword(password);
	vncPasswd::ToText plain(password);

	// Verify the peer host name against the AuthHosts string
	vncServer::AcceptQueryReject verified;
	if (m_auth) {
		verified = vncServer::aqrAccept;
	} else {
		verified = m_server->VerifyHost(m_socket->GetPeerName());
	}
	
	// If necessary, query the connection with a timed dialog
	if (verified == vncServer::aqrQuery) {
		vncAcceptDialog *acceptDlg = new vncAcceptDialog(m_server->QueryTimeout(), m_socket->GetPeerName());
		if ((acceptDlg == 0) || (!(acceptDlg->DoDialog())))
			verified = vncServer::aqrReject;
	}
	if (verified == vncServer::aqrReject) {
		CARD32 auth_val = Swap32IfLE(rfbConnFailed);
		char *errmsg = "Your connection has been rejected.";
		CARD32 errlen = Swap32IfLE(strlen(errmsg));
		if (!m_socket->SendExact((char *)&auth_val, sizeof(auth_val)))
			return FALSE;
		if (!m_socket->SendExact((char *)&errlen, sizeof(errlen)))
			return FALSE;
		m_socket->SendExact(errmsg, strlen(errmsg));
		return FALSE;
	}

	// By default we disallow passwordless workstations!
	if ((strlen(plain) == 0) && m_server->AuthRequired())
	{
		vnclog.Print(LL_CONNERR, VNCLOG("no password specified for server - client rejected\n"));

		// Send an error message to the client
		CARD32 auth_val = Swap32IfLE(rfbConnFailed);
		char *errmsg =
			"This server does not have a valid password enabled.  "
			"Until a password is set, incoming connections cannot be accepted.";
		CARD32 errlen = Swap32IfLE(strlen(errmsg));

		if (!m_socket->SendExact((char *)&auth_val, sizeof(auth_val)))
			return FALSE;
		if (!m_socket->SendExact((char *)&errlen, sizeof(errlen)))
			return FALSE;
		m_socket->SendExact(errmsg, strlen(errmsg));

		return FALSE;
	}

	// By default we filter out local loop connections, because they're pointless
	if (!m_server->LoopbackOk())
	{
		char *localname = strdup(m_socket->GetSockName());
		char *remotename = strdup(m_socket->GetPeerName());

		// Check that the local & remote names are different!
		if ((localname != NULL) && (remotename != NULL))
		{
			BOOL ok = strcmp(localname, remotename) != 0;

			if (localname != NULL)
				free(localname);

			if (remotename != NULL)
				free(remotename);

			if (!ok)
			{
				vnclog.Print(LL_CONNERR, VNCLOG("loopback connection attempted - client rejected\n"));
				
				// Send an error message to the client
				CARD32 auth_val = Swap32IfLE(rfbConnFailed);
				char *errmsg = "Local loop-back connections are disabled.";
				CARD32 errlen = Swap32IfLE(strlen(errmsg));

				if (!m_socket->SendExact((char *)&auth_val, sizeof(auth_val)))
					return FALSE;
				if (!m_socket->SendExact((char *)&errlen, sizeof(errlen)))
					return FALSE;
				m_socket->SendExact(errmsg, strlen(errmsg));

				return FALSE;
			}
		}
	}

	// Authenticate the connection, if required
	if (m_auth || (strlen(plain) == 0))
	{
		// Send no-auth-required message
		CARD32 auth_val = Swap32IfLE(rfbNoAuth);
		if (!m_socket->SendExact((char *)&auth_val, sizeof(auth_val)))
			return FALSE;
	}
//.........这里部分代码省略.........