Avoid crashing on no mouse driver

2 files changed, 9 insertions, 7 deletions

diff --git a/core/apps/calibrate/main.cpp b/core/apps/calibrate/main.cpp
index 1c295eb..ec9b5ec 100644
--- a/core/apps/calibrate/main.cpp
+++ b/core/apps/calibrate/main.cpp
@@ -1,46 +1,47 @@
 /**********************************************************************
 ** Copyright (C) 2000 Trolltech AS.  All rights reserved.
 **
 ** This file is part of Qtopia Environment.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 
 #include "calibrate.h"
 
 #include <qfile.h>
 #include <qpe/qpeapplication.h>
 
 #ifdef QWS
 #include <qwindowsystem_qws.h>
 #endif
 
 int main( int argc, char ** argv )
 {
     QPEApplication a( argc, argv );
     int retval = 0;
 
 #ifdef QWS
-    if ( QWSServer::mouseHandler() ->inherits("QCalibratedMouseHandler") ) {
+    if ( QWSServer::mouseHandler() &&
+         QWSServer::mouseHandler() ->inherits("QCalibratedMouseHandler") ) {
 #endif
         // Make sure calibration widget starts on top.
         Calibrate cal;
         a.setMainWidget(&cal);
         a.showMainWidget(&cal);
         return a.exec();
 #ifdef QWS
     }
 #endif
 }
diff --git a/core/opie-login/main.cpp b/core/opie-login/main.cpp
index 7dcb5f6..2103216 100644
--- a/core/opie-login/main.cpp
+++ b/core/opie-login/main.cpp
@@ -62,189 +62,189 @@
 
 using namespace Opie;
 
 int login_main ( int argc, char **argv, pid_t ppid );
 void sigterm ( int sig );
 void sigint ( int sig );
 void exit_closelog ( );
 
 static struct option long_options [] = {
         { "autologin", 1, 0, 'a' },
         { 0, 0, 0, 0 }
 };
 
 
 int main ( int argc, char **argv )
 {
     int userExited = 0;
         pid_t ppid = ::getpid ( );
 
         if ( ::geteuid ( ) != 0 ) {
                 ::fprintf ( stderr, "%s can only be executed by root. (or chmod +s)", argv [0] );
                 return 1;
         }
         if ( ::getuid ( ) != 0 ) // qt doesn't really like SUID and
                 ::setuid ( 0 );      // messes up things like config files
 
         char *autolog = 0;
         int c;
         while (( c = ::getopt_long ( argc, argv, "a:", long_options, 0 )) != -1 ) {
                 switch ( c ) {
                         case 'a':
                                 autolog = optarg;
                                 break;
                         default:
                                 ::fprintf ( stderr, "Usage: %s [-a|--autologin=<user>]\n", argv [0] );
                                 return 2;
                 }
         }
 
         //struct rlimit rl;
         //::getrlimit ( RLIMIT_NOFILE, &rl );
 
         //for ( unsigned int i = 0; i < rl. rlim_cur; i++ )
         //      ::close ( i );
 
         ::setpgid ( 0, 0 );
         ::setsid ( );
 
-                ::signal ( SIGTERM, sigterm );
+        ::signal ( SIGTERM, sigterm );
         ::signal ( SIGINT, sigterm );
 
         ::openlog ( "opie-login", LOG_CONS, LOG_AUTHPRIV );
         ::atexit ( exit_closelog );
 
         while ( true ) {
                 pid_t child = ::fork ( );
 
                 if ( child < 0 ) {
                         ::syslog ( LOG_ERR, "Could not fork GUI process\n" );
                         break;
                 }
                 else if ( child > 0 ) {
                         int status = 0;
                         time_t started = ::time ( 0 );
 
                         while ( ::waitpid ( child, &status, 0 ) < 0 ) { }
 
                         LoginApplication::logout ( );
 
                         if (( ::time ( 0 ) - started ) < 3 ) {
                                 if ( autolog ) {
                                         ::syslog ( LOG_ERR, "Respawning too fast -- disabling auto-login\n" );
                                         autolog = 0;
                                 }
                                 else {
                                         ::syslog ( LOG_ERR, "Respawning too fast -- going down\n" );
                                         break;
                                 }
                         }
                         int killedbysig = 0;
             userExited=0;
             if (WIFEXITED(status)!=0 ) {
                 if (WEXITSTATUS(status)==137)  {
                     userExited=1;
                 }
             }
 
                         if ( WIFSIGNALED( status )) {
                                 switch ( WTERMSIG( status )) {
                                         case SIGTERM:
                                         case SIGINT :
                                         case SIGKILL:
                                                 break;
 
                                         default     :
                                                 killedbysig = WTERMSIG( status );
                                                 break;
                                 }
                         }
                         if ( killedbysig ) {  // qpe was killed by an uncaught signal
                                 qApp = 0;
-                                
+
                                 ::syslog ( LOG_ERR, "Opie was killed by a signal #%d", killedbysig );
 
                                 QWSServer::setDesktopBackground ( QImage ( ));
                                 QApplication *app = new QApplication ( argc, argv, QApplication::GuiServer );
                                 app-> setFont ( QFont ( "Helvetica", 10 ));
                                 app-> setStyle ( new QPEStyle ( ));
 
                                 const char *sig = ::strsignal ( killedbysig );
                                 QLabel *l = new QLabel ( 0, "sig", Qt::WStyle_Customize | Qt::WStyle_NoBorder | Qt::WStyle_Tool );
                                 l-> setText ( LoginWindowImpl::tr( "Opie was terminated\nby an uncaught signal\n(%1)\n" ). arg ( sig ));
                                 l-> setAlignment ( Qt::AlignCenter );
                                 l-> move ( 0, 0 );
                                 l-> resize ( app-> desktop ( )-> width ( ), app-> desktop ( )-> height ( ));
                                 l-> show ( );
                                 QTimer::singleShot ( 3000, app, SLOT( quit ( )));
                                 app-> exec ( );
                                 delete app;
                                 qApp = 0;
                         }
                 }
                 else {
                         if ( !autolog ) {
                 QString confFile=QPEApplication::qpeDir() + "/etc/opie-login.conf";
                                 Config cfg ( confFile, Config::File );
                                 cfg. setGroup ( "General" );
                                 QString user = cfg. readEntry ( "AutoLogin" );
-                                
+
                                 if ( !user. isEmpty ( ))
                                         autolog = ::strdup ( user. latin1 ( ));
                         }
-                
+
                         if ( autolog && !userExited ) {
 
                 QWSServer::setDesktopBackground( QImage() );
                 ODevice::inst ( )-> setDisplayStatus ( true );
                 ODevice::inst ( )-> setSoftSuspend ( false );
                 LoginApplication *app = new LoginApplication ( argc, argv, ppid );
                 LoginApplication::setLoginAs ( autolog );
-  
+
 
                                 if ( LoginApplication::changeIdentity ( ))
                                         ::exit ( LoginApplication::login ( ));
                                 else
                                         ::exit ( 0 );
                         }
                         else  {
                                 ::exit ( login_main ( argc, argv, ppid ));
             }
                 }
         }
         return 0;
 }
 
 void sigterm ( int /*sig*/ )
 {
         ::exit ( 0 );
 }
 
 
 void exit_closelog ( )
 {
         ::closelog ( );
 }
 
 
 class LoginScreenSaver : public QWSScreenSaver
 {
 public:
   LoginScreenSaver ( )
   {
     m_lcd_status = true;
 
     m_backlight_bright = -1;
     m_backlight_forcedoff = false;
 
     // Make sure the LCD is in fact on, (if opie was killed while the LCD is off it would still be off)
     ODevice::inst ( )-> setDisplayStatus ( true );
   }
   void restore()
   {
     if ( !m_lcd_status )     // We must have turned it off
       ODevice::inst ( ) -> setDisplayStatus ( true );
 
     setBacklight ( -3 );
   }
   bool save( int level )
   {
@@ -295,91 +295,92 @@ public:
   }
 
   void setBacklight ( int bright )
   {
     if ( bright == -3 ) {
       // Forced on
       m_backlight_forcedoff = false;
       bright = -1;
     }
     if ( m_backlight_forcedoff && bright != -2 )
       return ;
     if ( bright == -2 ) {
       // Toggle between off and on
       bright = m_backlight_bright ? 0 : -1;
       m_backlight_forcedoff = !bright;
     }
 
     m_backlight_bright = bright;
 
     bright = backlight ( );
     ODevice::inst ( ) -> setDisplayBrightness ( bright );
 
     m_backlight_bright = bright;
   }
 
 private:
   bool m_lcd_status;
 
   int m_backlight_bright;
   bool m_backlight_forcedoff;
 };
 
 
 namespace Opie { extern int force_appearance; }  // HACK to get around the force-style setting
 
 
 int login_main ( int argc, char **argv, pid_t ppid )
 {
         QWSServer::setDesktopBackground( QImage() );
         LoginApplication *app = new LoginApplication ( argc, argv, ppid );
 
         Opie::force_appearance = 0;
 
         app-> setFont ( QFont ( "Helvetica", 10 ));
         app-> setStyle ( new QPEStyle ( ));
 
         ODevice::inst ( )-> setSoftSuspend ( true );
 
-        if ( QWSServer::mouseHandler() ->inherits("QCalibratedMouseHandler") ) {
+        if ( QWSServer::mouseHandler() &&
+             QWSServer::mouseHandler() ->inherits("QCalibratedMouseHandler") ) {
                 if ( !QFile::exists ( "/etc/pointercal" )) {
                         // Make sure calibration widget starts on top.
                         Calibrate *cal = new Calibrate;
                         cal-> exec ( );
                         delete cal;
                 }
         }
 
         LoginScreenSaver *saver = new LoginScreenSaver;
 
         saver-> setIntervals ( );
         QWSServer::setScreenSaver ( saver );
         saver-> restore ( );
 
 
         LoginWindowImpl *lw = new LoginWindowImpl ( );
         app-> setMainWidget ( lw );
         lw-> setGeometry ( 0, 0, app-> desktop ( )-> width ( ), app-> desktop ( )-> height ( ));
         lw-> show ( );
 
         int rc = app-> exec ( );
 
         ODevice::inst ( )-> setSoftSuspend ( false );
 
         if ( app-> loginAs ( )) {
                 if ( app-> changeIdentity ( )) {
                         app-> login ( );
 
                         // if login succeeds, it never comes back
 
                         QMessageBox::critical ( 0, LoginWindowImpl::tr( "Failure" ), LoginWindowImpl::tr( "Could not start Opie." ));
                         rc = 1;
                 }
                 else {
                         QMessageBox::critical ( 0, LoginWindowImpl::tr( "Failure" ), LoginWindowImpl::tr( "Could not switch to new user identity" ));
                         rc = 2;
                 }
 
         }
         return rc;
 }