Each file in this commit had a problem where a function might return

a null value for a pointer and that null value was not checked.

3 files changed, 10 insertions, 5 deletions

diff --git a/noncore/games/minesweep/minefield.cpp b/noncore/games/minesweep/minefield.cpp
index 72c05b0..1987ea5 100644
--- a/noncore/games/minesweep/minefield.cpp
+++ b/noncore/games/minesweep/minefield.cpp
@@ -1,747 +1,749 @@
 /**********************************************************************
 ** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the 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 "minefield.h"
 
 #include <qtopia/config.h>
 #include <qtopia/qpeapplication.h>
 
 #include <qtimer.h>
 
 #include <stdlib.h>
 
 static const char *pix_flag[]={
 "13 13 3 1",
 "# c #000000",
 "x c #ff0000",
 ". c None",
 ".............",
 ".............",
 ".....#xxxxxx.",
 ".....#xxxxxx.",
 ".....#xxxxxx.",
 ".....#xxxxxx.",
 ".....#.......",
 ".....#.......",
 ".....#.......",
 ".....#.......",
 "...#####.....",
 "..#######....",
 "............."};
 
 static const char *pix_mine[]={
 "13 13 3 1",
 "# c #000000",
 ". c None",
 "a c #ffffff",
 "......#......",
 "......#......",
 "..#.#####.#..",
 "...#######...",
 "..##aa#####..",
 "..##aa#####..",
 "#############",
 "..#########..",
 "..#########..",
 "...#######...",
 "..#.#####.#..",
 "......#......",
 "......#......"};
 
 
 static const int maxGrid = 28;
 static const int minGrid = 12;
 
 
 
 class Mine : public Qt
 {
 public:
     enum MineState {
         Hidden = 0,
         Empty,
         Mined,
         Flagged,
 #ifdef MARK_UNSURE
         Unsure,
 #endif
         Exploded,
         Wrong
     };
 
     Mine( MineField* );
     void paint( QPainter * p, const QColorGroup & cg, const QRect & cr );
 
     QSize sizeHint() const { return QSize( maxGrid, maxGrid ); }
 
     void activate( bool sure = TRUE );
     void setHint( int );
 
     void setState( MineState );
     MineState state() const { return st; }
 
     bool isMined() const { return mined; }
     void setMined( bool m ) { mined = m; }
 
     static void paletteChange();
 
 private:
     bool mined;
     int hint;
 
     MineState st;
     MineField *field;
     
     static QPixmap* knownField;
     static QPixmap* unknownField;
     static QPixmap* flag_pix;
     static QPixmap* mine_pix;
 };
 
 QPixmap* Mine::knownField = 0;
 QPixmap* Mine::unknownField = 0;
 QPixmap* Mine::flag_pix = 0;
 QPixmap* Mine::mine_pix = 0;
 
 Mine::Mine( MineField *f )
 {
     mined = FALSE;
     st = Hidden;
     hint = 0;
     field = f;
 }
 
 void Mine::activate( bool sure )
 {
     if ( !sure ) {
         switch ( st ) {
         case Hidden:
             setState( Flagged );
             break;
         case Flagged:
 #ifdef MARK_UNSURE
             setState( Unsure );
             break;
         case Unsure:
 #endif
             setState( Hidden );
         default:
             break;
         }
     } else if ( st == Flagged ) {
         return;
     } else {
         if ( mined ) {
             setState( Exploded );
         } else {
             setState( Empty );
         }
     }
 }
 
 void Mine::setState( MineState s )
 {
     st = s;
 }
 
 void Mine::setHint( int h )
 {
     hint = h;
 }
 
 void Mine::paletteChange()
 {
     delete knownField;
     knownField = 0;
     delete unknownField;
     unknownField = 0;
     delete mine_pix;
     mine_pix = 0;
     delete flag_pix;
     flag_pix = 0;
 }
 
 void Mine::paint( QPainter* p, const QColorGroup &cg, const QRect& cr )
 {
     int x = cr.x();
     int y = cr.y();
     if ( !knownField || knownField->width() != cr.width() ||
          knownField->height() != cr.height() ) {
         delete knownField;
         knownField = new QPixmap( cr.width(), cr.height() );
         QPainter pp( knownField );
         QBrush br( cg.button().dark(115) );
         qDrawWinButton( &pp, QRect( 0, 0, cr.width(), cr.height() ), cg, TRUE, &br );
     }
 
     const int pmmarg=cr.width()/5;
 
     if ( !unknownField || unknownField->width() != cr.width() ||
          unknownField->height() != cr.height() ) {
         delete unknownField;
         unknownField = new QPixmap( cr.width(), cr.height() );
         QPainter pp( unknownField );
         QBrush br( cg.button() );
         qDrawWinButton( &pp, QRect( 0, 0, cr.width(), cr.height() ), cg, FALSE, &br );
     }
 
     if ( !flag_pix || flag_pix->width() != cr.width()-pmmarg*2 ||
          flag_pix->height() != cr.height()-pmmarg*2 ) {
         delete flag_pix;
         flag_pix = new QPixmap( cr.width()-pmmarg*2, cr.height()-pmmarg*2 );
         flag_pix->convertFromImage( QImage(pix_flag).smoothScale(cr.width()-pmmarg*2, cr.height()-pmmarg*2) );
     }
 
     if ( !mine_pix || mine_pix->width() != cr.width()-pmmarg*2 ||
          mine_pix->height() != cr.height()-pmmarg*2 ) {
         delete mine_pix;
         mine_pix = new QPixmap( cr.width()-pmmarg*2, cr.height()-pmmarg*2 );
         mine_pix->convertFromImage( QImage(pix_mine).smoothScale(cr.width()-pmmarg*2, cr.height()-pmmarg*2) );
     }
 
     p->save();
 
     switch(st) {
     case Hidden:
         p->drawPixmap( x, y, *unknownField );
         break;
     case Empty:
         p->drawPixmap( x, y, *knownField );
         if ( hint > 0 ) {
             switch( hint ) {
             case 1:
                 p->setPen( blue );
                 break;
             case 2:
                 p->setPen( green.dark() );
                 break;
             case 3:
                 p->setPen( red );
                 break;
             case 4:
                 p->setPen( darkYellow.dark() );
                 break;
             case 5:
                 p->setPen( darkMagenta );
                 break;
             case 6:
                 p->setPen( darkRed );
                 break;
             default:
                 p->setPen( black );
                 break;
             }
             p->drawText( cr, AlignHCenter | AlignVCenter, QString::number( hint ) );
         }
         break;
     case Mined:
         p->drawPixmap( x, y, *knownField );
         p->drawPixmap( x+pmmarg, y+pmmarg, *mine_pix );
         break;
     case Exploded:
         p->drawPixmap( x, y, *knownField );
         p->drawPixmap( x+pmmarg, y+pmmarg, *mine_pix );
         p->setPen( red );
         p->drawText( cr, AlignHCenter | AlignVCenter, "X" );
         break;
     case Flagged:
         p->drawPixmap( x, y, *unknownField );
         p->drawPixmap( x+pmmarg, y+pmmarg, *flag_pix );
         break;
 #ifdef MARK_UNSURE
     case Unsure:
         p->drawPixmap( x, y, *unknownField );
         p->drawText( cr, AlignHCenter | AlignVCenter, "?" );
         break;
 #endif
     case Wrong:
         p->drawPixmap( x, y, *unknownField );
         p->drawPixmap( x+pmmarg, y+pmmarg, *flag_pix );
         p->setPen( red );
         p->drawText( cr, AlignHCenter | AlignVCenter, "X" );
         break;
     }
 
     p->restore();
 }
 
 /*
   MineField implementation
 */
 
 MineField::MineField( QWidget* parent, const char* name )
 : QScrollView( parent, name )
 {
     viewport()->setBackgroundMode( NoBackground );
     setState( GameOver );
 
     setSizePolicy( QSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum ) );
     
     setFocusPolicy( QWidget::NoFocus );
 
     holdTimer = new QTimer( this );
     connect( holdTimer, SIGNAL( timeout() ), this, SLOT( held() ) );
 
     flagAction = NoAction;
     ignoreClick = FALSE;
     currRow = currCol = -1;
     minecount=0;
     mineguess=0;
     nonminecount=0;
     cellSize = -1;
 
     numRows = numCols = 0;
     mines = NULL;
 }
 
 MineField::~MineField()
 {
     for ( int i = 0; i < numCols*numRows; i++ )
         delete mines[i];
     delete[] mines;
 }
 
 void MineField::setState( State st )
 {
     stat = st;
 }
 
 void MineField::setup( int level )
 {
     lev = level;
     setState( Waiting );
     //viewport()->setUpdatesEnabled( FALSE );
 
     int i;
     for ( i = 0; i < numCols*numRows; i++ )
         delete mines[i];
     delete[] mines;
 
     switch( lev ) {
     case 1:
         numRows = 9 ;
         numCols = 9 ;
         minecount = 12;
         break;
     case 2:
         numRows = 13;
         numCols = 13;
         minecount = 33;
         break;
     case 3:
         numCols = 18;
         numRows = 18;
         minecount = 66 ;
         break;
     }
     mines = new Mine* [numRows*numCols];
     for ( i = 0; i < numCols*numRows; i++ )
         mines[i] = new Mine( this );
 
     
     nonminecount = numRows*numCols - minecount;
     mineguess = minecount;
     emit mineCount( mineguess );
     Mine::paletteChange();
 
     if ( availableRect.isValid() )
         setCellSize(findCellSize());
     //    viewport()->setUpdatesEnabled( TRUE );
     //viewport()->repaint( TRUE );
     updateContents( 0, 0, numCols*cellSize, numRows*cellSize );
     updateGeometry();
 }
 
 void MineField::drawContents( QPainter * p, int clipx, int clipy, int clipw, int cliph ) 
 {
     int c1 = clipx / cellSize;
     int c2 = ( clipx + clipw - 1 ) / cellSize;
     int r1 = clipy / cellSize;
     int r2 = ( clipy + cliph - 1 ) / cellSize;
     
     for ( int c = c1; c <= c2 ; c++ ) {
         for ( int r = r1; r <= r2 ; r++ ) {
             int x = c * cellSize;
             int y = r * cellSize;
             Mine *m = mine( r, c );
             if ( m )
                 m->paint( p, colorGroup(), QRect(x, y, cellSize, cellSize ) );
         }
     }
 }
 
 
 // Chicken and egg problem: We need to know how big the parent is
 // before we can decide how big to make the table.
 
 void MineField::setAvailableRect( const QRect &r )
 {
     availableRect = r;
     int newCellSize = findCellSize();
 
 
     if ( newCellSize == cellSize ) {
         setCellSize( cellSize );
     } else {
         viewport()->setUpdatesEnabled( FALSE );
         setCellSize( newCellSize );
         viewport()->setUpdatesEnabled( TRUE );
         viewport()->repaint( TRUE );
     }
 }
 
 int MineField::findCellSize()
 {
     int w = availableRect.width() - 2;
     int h = availableRect.height() - 2;
     int cellsize;
     
     cellsize = QMIN( w/numCols, h/numRows );
     cellsize = QMIN( QMAX( cellsize, minGrid ), maxGrid );
     return cellsize;
 }
 
 
 void MineField::setCellSize( int cellsize )
 {
     int b = 2;
     
     int w2 = cellsize*numCols;
     int h2 = cellsize*numRows;
     
     int w = QMIN( availableRect.width(), w2+b );
     int h = QMIN( availableRect.height(), h2+b );
 
     //
     // Don't rely on the change in cellsize to force a resize,
     // as it's possible to have the same size cells when going
     // from a large play area to a small one.
     //
     resizeContents(w2, h2);
 
     if ( availableRect.height() < h2 &&
          availableRect.width() - w > style().scrollBarExtent().width() ) {
         w += style().scrollBarExtent().width();
     }
     
     setGeometry( availableRect.x() + (availableRect.width()-w)/2,
             availableRect.y() + (availableRect.height()-h)/2, w, h );
     cellSize = cellsize;
 }
 
 
 void MineField::placeMines()
 {
     int mines = minecount;
     while ( mines ) {
         int col = int((double(rand()) / double(RAND_MAX)) * numCols);
         int row = int((double(rand()) / double(RAND_MAX)) * numRows);
 
         Mine* m = mine( row, col );
 
         if ( m && !m->isMined() && m->state() == Mine::Hidden ) {
             m->setMined( TRUE );
             mines--;
         }
     }
 }
 
 
 void MineField::updateCell( int r, int c )
 {
     updateContents( c*cellSize, r*cellSize, cellSize, cellSize );
 }
 
 
 void MineField::contentsMousePressEvent( QMouseEvent* e )
 {
     int c = e->pos().x() / cellSize;
     int r = e->pos().y() / cellSize;
     if ( onBoard( r, c ) )
         cellPressed( r, c );
     else
         currCol = currRow = -1;
 }
 
 void MineField::contentsMouseReleaseEvent( QMouseEvent* e )
 {
     int c = e->pos().x() / cellSize;
     int r = e->pos().y() / cellSize;
     if ( onBoard( r, c ) && c == currCol && r == currRow )
         cellClicked( r, c );
     
     
     if ( flagAction == FlagNext ) {
         flagAction = NoAction;
     }
 }
 
 
 
 /*
  state == Waiting means no "hold"
 
  
 */
 void MineField::cellPressed( int row, int col )
 {
     if ( state() == GameOver ) 
         return;
     currRow = row;
     currCol = col;
     if ( state() == Playing )
         holdTimer->start( 150, TRUE );
 }
 
 void MineField::held()
 {
     flagAction = FlagNext;
     updateMine( currRow, currCol );
     ignoreClick = TRUE;
 }
 
 
 
 
 void MineField::keyPressEvent( QKeyEvent* e )
 {
 #if defined(Q_WS_QWS) || defined(_WS_QWS_)
     flagAction = ( e->key() == Key_Up ) ? FlagOn : NoAction;
 #else
     flagAction = ( ( e->state() & ShiftButton ) ==  ShiftButton ) ? FlagOn : NoAction;
 #endif
 }
 
 void MineField::keyReleaseEvent( QKeyEvent* )
 {
     flagAction = NoAction;
 }
 
 int MineField::getHint( int row, int col )
 {
     int hint = 0;
     for ( int c = col-1; c <= col+1; c++ )
         for ( int r = row-1; r <= row+1; r++ ) {
             Mine* m = mine( r, c );
             if ( m && m->isMined() )
                 hint++;
         }
 
     return hint;
 }
 
 void MineField::setHint( int row, int col )
 {
     Mine *m = mine( row, col );
     if ( !m )
         return;
 
     int hint = getHint( row, col );
 
     if ( !hint ) {
         for ( int c = col-1; c <= col+1; c++ )
             for ( int r = row-1; r <= row+1; r++ ) {
                 Mine* m = mine( r, c );
                 if ( m && m->state() == Mine::Hidden ) {
                     m->activate( TRUE );
                     nonminecount--;
                     setHint( r, c );
                     updateCell( r, c );
                 }
             }
     }
 
     m->setHint( hint );
     updateCell( row, col );
 }
 
 /*
   Only place mines after first click, since it is pointless to
   kill the player before the game has started.
 */
 
 void MineField::cellClicked( int row, int col )
 {
     if ( state() == GameOver )
         return;
     if ( state() == Waiting ) {
         Mine* m = mine( row, col );
         if ( !m )
             return;
         m->setState( Mine::Empty );
         nonminecount--;
         placeMines();
         setState( Playing );
         emit gameStarted();
         updateMine( row, col );
     } else { // state() == Playing
         holdTimer->stop();
         if ( ignoreClick )
             ignoreClick = FALSE;
         else
             updateMine( row, col );
     }
 }
 
 void MineField::updateMine( int row, int col )
 {
     Mine* m = mine( row, col );
     if ( !m )
         return;
 
     bool wasFlagged = m->state() == Mine::Flagged;
     bool wasEmpty =  m->state() == Mine::Empty;
     
     m->activate( flagAction == NoAction );
 
     if ( m->state() == Mine::Exploded ) {
         emit gameOver( FALSE );
         setState( GameOver );
         return;
     } else if ( m->state() == Mine::Empty ) {
         setHint( row, col );
         if ( !wasEmpty )
             nonminecount--;
     }
 
     if ( flagAction != NoAction ) {
         if ( m->state() == Mine::Flagged ) {
             if (mineguess > 0) {
                 --mineguess;
                 emit mineCount( mineguess );
                 if ( m->isMined() )
                     --minecount;
             } else {
                 m->setState(Mine::Hidden);
             }
         } else if ( wasFlagged ) {
             ++mineguess;
             emit mineCount( mineguess );
             if ( m->isMined() )
                 ++minecount;
         }
     }
 
     updateCell( row, col );
 
     if ( !minecount && !mineguess || !nonminecount ) {
         emit gameOver( TRUE );
         setState( GameOver );
     }
 }
 
 void MineField::showMines()
 {
     for ( int c = 0; c < numCols; c++ )
         for ( int r = 0; r < numRows; r++ ) {
             Mine* m = mine( r, c );
             if ( !m )
                 continue;
             if ( m->isMined() && m->state() == Mine::Hidden )
                 m->setState( Mine::Mined );
             if ( !m->isMined() && m->state() == Mine::Flagged )
                 m->setState( Mine::Wrong );
 
             updateCell( r, c );
         }
 }
 
 void MineField::paletteChange( const QPalette &o )
 {
     Mine::paletteChange();
     QScrollView::paletteChange( o );
 }
 
 void MineField::writeConfig(Config& cfg) const
 {
     cfg.setGroup("Field");
     cfg.writeEntry("Level",lev);
     QString grid="";
     if ( stat == Playing ) {
         for ( int x = 0; x < numCols; x++ )
             for ( int y = 0; y < numRows; y++ ) {
                 char code='A'+(x*17+y*101)%21; // Reduce the urge to cheat
                 const Mine* m = mine( y, x );
                 int st = (int)m->state(); if ( m->isMined() ) st+=5;
                 grid += code + st;
             }
     }
     cfg.writeEntry("Grid",grid);
 }
 
 void MineField::readConfig(Config& cfg)
 {
     cfg.setGroup("Field");
     lev = cfg.readNumEntry("Level",1);
     setup(lev);
     flagAction = NoAction;
     ignoreClick = FALSE;
     currRow = currCol = 0;
     QString grid = cfg.readEntry("Grid");
     int x;
     if ( !grid.isEmpty() ) {
         int i=0;
         minecount=0;
         mineguess=0;
         for ( x = 0; x < numCols; x++ ) {
             for ( int y = 0; y < numRows; y++ ) {
                 char code='A'+(x*17+y*101)%21; // Reduce the urge to cheat
                 int st = (char)(QChar)grid[i++]-code;
                 Mine* m = mine( y, x );
+                if (!m)
+                    continue;
                 if ( st >= 5 ) {
                     st-=5;
                     m->setMined(TRUE);
                     minecount++;
                     mineguess++;
                 }
                 m->setState((Mine::MineState)st);
                 switch ( m->state() ) {
                   case Mine::Flagged:
                     if (m->isMined())
                         minecount--;
                     mineguess--;
                     break;
                   case Mine::Empty:
                     --nonminecount;
                     break;
                 default:
                     break;
                 }
             }
         }
         for ( x = 0; x < numCols; x++ ) {
             for ( int y = 0; y < numRows; y++ ) {
                 Mine* m = mine( y, x );
-                if ( m->state() == Mine::Empty )
+                if ( m && m->state() == Mine::Empty )
                     m->setHint(getHint(y,x));
             }
         }
     }
     setState( Playing );
     emit mineCount( mineguess );
 }
 
 QSize MineField::sizeHint() const
 {
     if ( qApp->desktop()->width() >= 240 )
         return QSize(200,200);
     else
         return QSize(160, 160);
 }
 
diff --git a/noncore/net/opieirc/ircsession.cpp b/noncore/net/opieirc/ircsession.cpp
index c8d7869..d87ff80 100644
--- a/noncore/net/opieirc/ircsession.cpp
+++ b/noncore/net/opieirc/ircsession.cpp
@@ -1,216 +1,218 @@
 
 #include "ircsession.h"
 #include "ircmessageparser.h"
 #include "ircchannelperson.h"
 #include "ircversion.h"
 
 IRCSession::IRCSession(QObject *parent, IRCServer *server)
     : QObject(parent)
 {
     m_server = server;
     m_connection = new IRCConnection(m_server);
     m_parser     = new IRCMessageParser(this);
     connect(m_connection, SIGNAL(messageArrived(IRCMessage*)), this, SLOT(handleMessage(IRCMessage*)));
     connect(m_parser, SIGNAL(outputReady(IRCOutput)), this, SIGNAL(outputReady(IRCOutput)));
     connect(m_connection, SIGNAL(outputReady(IRCOutput)), this, SIGNAL(outputReady(IRCOutput)));
 }
 
 IRCSession::~IRCSession() {
     /* We want this to get deleted automatically */
     m_channels.setAutoDelete(TRUE);
     m_people.setAutoDelete(TRUE);
         
     delete m_parser;
     delete m_connection;
 }
 
 void IRCSession::beginSession() {
     m_connection->doConnect();
 }
 
 void IRCSession::join(QString channelname) {
     m_connection->sendLine("JOIN " + channelname);
 }
 
 void IRCSession::quit(){
     m_connection->sendLine("QUIT :[OI] I'm too good to need a reason");
 }
 
 void IRCSession::quit(QString message){
     m_connection->sendLine("QUIT :" + message);
 }
 
 void IRCSession::topic(IRCChannel *channel, QString message){
     m_connection->sendLine("TOPIC :" + channel->channelname() + " " + message);
 }
 
 void IRCSession::mode(IRCChannel *channel, QString message){
     m_connection->sendLine("MODE " + channel->channelname() + " " + message);
 }
 
 void IRCSession::mode(IRCPerson *person, QString message){
     m_connection->sendLine("MODE " + person->nick() + " " + message);
 }
 
 void IRCSession::mode(QString message){
     m_connection->sendLine("MODE " + message);
 }
 
 void IRCSession::raw(QString message){
     m_connection->sendLine(message);
 }
 
 void IRCSession::kick(IRCChannel *channel, IRCPerson *person) {
     m_connection->sendLine("KICK " + channel->channelname() + " " + person->nick() +" :0wn3d - no reason");
 }
 
 void IRCSession::op(IRCChannel *channel, IRCPerson *person) {
     m_connection->sendLine("MODE " + channel->channelname() + " +ooo " + person->nick());
 }
 
 void IRCSession::kick(IRCChannel *channel, IRCPerson *person, QString message) {
     m_connection->sendLine("KICK " + channel->channelname() + " " + person->nick() +" :" + message);
 } 
 
 void IRCSession::sendMessage(IRCPerson *person, QString message) {
     m_connection->sendLine("PRIVMSG " + person->nick() + " :" + message);
 }
 
 void IRCSession::sendMessage(IRCChannel *channel, QString message) {
     m_connection->sendLine("PRIVMSG " + channel->channelname() + " :" + message);
 }
 
 void IRCSession::sendAction(IRCChannel *channel, QString message) {
     m_connection->sendLine("PRIVMSG " + channel->channelname() + " :\001ACTION " + message + "\001");
 }
 
 void IRCSession::sendAction(IRCPerson *person, QString message) {
     m_connection->sendLine("PRIVMSG " + person->nick() + " :\001ACTION " + message + "\001");
 }
 
 bool IRCSession::isSessionActive() {
     return m_connection->isConnected(); 
 }
 
 bool IRCSession::isLoggedIn() {
     return m_connection->isLoggedIn();
 }
 
 void IRCSession::endSession() {
     if (m_connection->isLoggedIn())
         quit(APP_VERSION);
     else
         m_connection->close();
 }
 
 void IRCSession::part(IRCChannel *channel) {
     m_connection->sendLine("PART " + channel->channelname() + " :" + APP_VERSION);
 }
 
 void IRCSession::setValidUsermodes(const QString &modes) {
     m_validUsermodes = modes;
 }
 
 void IRCSession::setValidChannelmodes(const QString &modes) {
     m_validChannelmodes = modes;
 }
 
 void IRCSession::updateNickname(const QString &oldNickname, const QString &newNickname) {
     QList<IRCChannel> channels;
     IRCOutput output;
     
     if (oldNickname == m_server->nick()) {
         m_server->setNick(newNickname);
         output = IRCOutput(OUTPUT_NICKCHANGE, tr("You are now known as %1").arg(newNickname));
         channels = m_channels;
     }
 
     else {
         IRCPerson *person = getPerson(oldNickname);
         
         if(!person) {
             emit outputReady(IRCOutput(OUTPUT_ERROR, tr("Nickname change of an unknown person")));
             return;
         }
         
         getChannelsByPerson(person, channels);
         output = IRCOutput(OUTPUT_NICKCHANGE, tr("%1 is now known as %2").arg(oldNickname).arg(newNickname));
     }
 
     QListIterator<IRCChannel> it(channels);
     for (;it.current(); ++it) {
         IRCChannelPerson *chanperson = it.current()->getPerson(oldNickname);
-        it.current()->removePerson(chanperson);
-        chanperson->setNick(newNickname);
-        it.current()->addPerson(chanperson);
+        if (chanperson) {
+            it.current()->removePerson(chanperson);
+            chanperson->setNick(newNickname);
+            it.current()->addPerson(chanperson);
+        }
     }
 
     emit updateChannels();
     output.addParam(new QString(newNickname));
     emit outputReady(output);
 }
 
 IRCChannel *IRCSession::getChannel(QString channelname) {
     QListIterator<IRCChannel> it(m_channels);
     for (; it.current(); ++it) {
         if (it.current()->channelname() == channelname) {
             return it.current();
         }
     }
     return 0;
 }
 
 IRCPerson *IRCSession::getPerson(QString nickname) {
     QListIterator<IRCPerson> it(m_people);
     for (; it.current(); ++it) {
         if (it.current()->nick() == nickname) {
             return it.current();
         }
     }
     return 0;
 }
 
 void IRCSession::getChannelsByPerson(IRCPerson *person, QList<IRCChannel> &channels) {
     QListIterator<IRCChannel> it(m_channels);
     for (; it.current(); ++it) {
         if (it.current()->getPerson(person->nick()) != 0) {
             channels.append(it.current());
         }
     }
 }
 
 void IRCSession::addPerson(IRCPerson *person) {
     m_people.append(person);
 }
 
 void IRCSession::addChannel(IRCChannel *channel) {
     m_channels.append(channel);
 }
 
 void IRCSession::removeChannel(IRCChannel *channel) {
     m_channels.remove(channel);
 }
 
 void IRCSession::removePerson(IRCPerson *person) {
     m_people.remove(person);
 }
 
 void IRCSession::handleMessage(IRCMessage *message) {
     m_parser->parse(message);
 }
 
 void IRCSession::whois(const QString &nickname) {
     m_connection->whois(nickname);
 }
 
 void IRCSession::sendCTCPPing(const QString &nickname) {
     m_connection->sendCTCPPing(nickname);
 }
 
 void IRCSession::sendCTCPRequest(const QString &nickname, const QString &type, const QString &args) {
     m_connection->sendCTCPRequest(nickname, type, args);
 }
 
 void IRCSession::sendCTCPReply(const QString &nickname, const QString &type, const QString &args) {
     m_connection->sendCTCPReply(nickname, type, args);
 }
diff --git a/noncore/todayplugins/stockticker/libstocks/csv.c b/noncore/todayplugins/stockticker/libstocks/csv.c
index 6170bed..86d8607 100644
--- a/noncore/todayplugins/stockticker/libstocks/csv.c
+++ b/noncore/todayplugins/stockticker/libstocks/csv.c
@@ -1,405 +1,406 @@
 /* libstocks - Library to get current stock quotes from Yahoo Finance
  *
  * Copyright (C) 2000 Eric Laeuffer
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
 
 #define __CSV_C__
 #ifndef __UNIX__
 #define __UNIX__
 #endif
 
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
 
 #ifdef __WINDOWS__
 #include <mbstring.h>
 #endif
 
 #include "csv.h"
 #include "stocks.h"
 #include "lists.h"
 
 #define DATE_LENGTH 7    /*YYMMDD*/
 
 const char *months[12]=
 {
   "Jan",
   "Feb",
   "Mar",
   "Apr",
   "May",
   "Jun",
   "Jul",
   "Aug",
   "Sep",
   "Oct",
   "Nov",
   "Dec"
 };
 
 /*****************************************************************************/
 /* Replacement of the strtok function. This one forgets "delim" when it is   */
 /* between two commas.                                                       */
 /* Thanks to Julio Lucas who has told me the bug and has proposed me a patch */
 /*****************************************************************************/
 char *csv_strtok(char *s, char *delim) 
 {
    static char *next=NULL;
    char *temp, *first;
    int comma=0;
 
    if (s!=NULL) first=s;
    else first=next;
    
    temp=first;
    if (*temp=='\0') return NULL;
 
    while (*temp!='\0' && ((*temp!=*delim) || comma))
      {
        if (*temp=='"') comma ^= 1;
        temp++;
      }
 
    if (*temp=='\0') next=temp;
    else 
      {
        *temp='\0';
        next=temp+1;
      }
 
    return first;
 }
 
 /*****************************************************************************/
 /* Parses the csv file and return a list of stocks structure.                */
 /* *csv points on the csv file in memory                                     */
 /* count defines the country, because csv depends on the country             */
 /*****************************************************************************/
 stock *parse_csv_file(char *csv)
 {
   char *line;
   char *end_line;
 
   char *ptr;
 
   char *date;
   char *time;
   char *name;
   char *symbol;
 
   stock *StockPtr=NULL;
   stock *LastStockPtr=NULL;
 
   /* Used to return the pointer to the list */
   stock *FirstStockPtr=NULL;
 
   /* used to see if symbol is valid */
   int valid;
   char *test;
 
   line = csv;
   end_line = csv;
 
   while ((end_line = strstr(line, "\n")))
     {
       *end_line = 0;
 
       /* Check if symbol valid */
       /* if 1 "N/A" then ok because Indices have N/A for volume */
       /* if 4 "N/A" then ok because Mutual funds have */
       /* if 5 "N/A" then ok because currencies have */
       /* So if >5 then stock not valid */
 
       test = line;
       valid = 0;
       while ( (test = strstr(test, "N/A")) )
   {
     valid ++;
     test = test +3;
   }
       
       if (valid < 6)
   {
     /* This Symbol is valid */
 
     StockPtr = malloc_stock();
     
     ptr = csv_strtok(line, ",");
     if (!ptr) return 0;
 
     symbol = (char *)malloc(strlen(ptr)+1);
     if (symbol==NULL)
       {
         fprintf(stderr,"Memory allocating error (%s line %d)\n"
           ,__FILE__, __LINE__);
         exit(1);
       }
     strcpy((char *)(symbol), ptr);
     StockPtr->Symbol = symbol;
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
 
     name = (char *)malloc(strlen(ptr)+1);
     if (name==NULL)
       {
         fprintf(stderr,"Memory allocating error (%s line %d)\n"
           ,__FILE__, __LINE__);
         exit(1);
       }
     strcpy((char *)(name), ptr);
     StockPtr->Name = name;
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     sscanf(ptr,"%f",&(StockPtr->CurrentPrice));
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
 
     date = (char *)malloc(strlen(ptr)+1);
     if (date==NULL)
       {
         fprintf(stderr,"Memory allocating error (%s line %d)\n"
           ,__FILE__, __LINE__);
         exit(1);
       }
     strcpy((char *)(date), ptr);
     StockPtr->Date = date;
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
 
     time = (char *)malloc(strlen(ptr)+1);
     if (time==NULL)
       {
         fprintf(stderr,"Memory allocating error (%s line %d)\n"
           ,__FILE__, __LINE__);
         exit(1);
       }
     strcpy((char *)(time), ptr);
     StockPtr->Time = time;
     
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     sscanf(ptr,"%f",&(StockPtr->Variation));      
     
     StockPtr->Pourcentage = 100 * StockPtr->Variation /
       (StockPtr->CurrentPrice - StockPtr->Variation);
 
     StockPtr->LastPrice = StockPtr->CurrentPrice - StockPtr->Variation;
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     sscanf(ptr,"%f",&(StockPtr->OpenPrice));      
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     sscanf(ptr,"%f",&(StockPtr->MaxPrice));      
 
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     sscanf(ptr,"%f",&(StockPtr->MinPrice));      
   
     ptr = csv_strtok(NULL, ",");
     if (!ptr) return 0;
     StockPtr->Volume = atoi(ptr);
 
     if( !FirstStockPtr ) 
       {
         FirstStockPtr = StockPtr;
         StockPtr->PreviousStock = 0;
       }
     
     StockPtr->NextStock = 0;
   
     if (LastStockPtr) 
       {
         LastStockPtr->NextStock = StockPtr;
         StockPtr->PreviousStock = LastStockPtr;
       }
     
     LastStockPtr = StockPtr;
     
   }
       else
   {
     /* this symbol is not valid */
     /* Set the stock struct just with Symbol, all other are NULL */
     /* This can be used to see if the symbol has been reached are not */
 
     StockPtr = malloc_stock();
     
     ptr = csv_strtok(line, ",");
     if (!ptr) return 0;
 
     symbol = (char *)malloc(strlen(ptr)+1);
     if (symbol==NULL)
       {
         fprintf(stderr,"Memory allocating error (%s line %d)\n"
           ,__FILE__, __LINE__);
         exit(1);
       }
     strcpy((char *)(symbol), ptr);
     StockPtr->Symbol = symbol;
 
     if( !FirstStockPtr ) 
       {
         FirstStockPtr = StockPtr;
         StockPtr->PreviousStock = 0;
       }
     
     StockPtr->NextStock = 0;
   
     if (LastStockPtr) 
       {
         LastStockPtr->NextStock = StockPtr;
         StockPtr->PreviousStock = LastStockPtr;
       }
     
     LastStockPtr = StockPtr;
   }
 
       end_line++;
       line = end_line; 
       
     }
     
   return (FirstStockPtr);
 }
 
 /*****************************************************************************/
 /* Parses the history quotes file and return a stock structure list.         */
 /*****************************************************************************/
 stock *parse_csv_history_file(char *csv_file)
 {
 
   char *line;
   char *end_line;
   char *ptr;
 
   int day;
   char smonth[10];
   int month;
   int year;
 
   char *date;
 
   int i;
   int test;
 
   stock *StockPtr=NULL;
   stock *LastStockPtr=NULL;
 
   /* Used to return the pointer to the list */
   stock *FirstStockPtr=NULL;
 
   line = csv_file;
   end_line = csv_file;
 
   /* do not use the first line */
-  end_line = strstr(line, "\n");
+  if (!(end_line = strstr(line, "\n")))
+      return 0;
   *end_line = 0;
   end_line++;
   line = end_line;
 
   while ((end_line = strstr(line, "\n")))
     {
       *end_line = 0;
 
       StockPtr = malloc_stock();
     
       /* Date */
       ptr = strtok(line, ",");
       if (!ptr) return 0;
 
       sscanf(ptr,"%d-%3s-%d",&day,smonth,&year);
 
       i=0;
 
 #ifdef __UNIX__
       while((test=strcasecmp(months[i], smonth))) i++;
 #elif __WINDOWS__
       while(test=_mbsnbicmp(months[i], smonth, strlen(months[i]))) i++;
 #endif
 
       month = i+1;
 
       date = (char *)malloc(DATE_LENGTH);
       if (date==NULL)
   {
     fprintf(stderr,"Memory allocating error (%s line %d)\n"
       ,__FILE__, __LINE__);
     exit(1);
   }
       sprintf(date,"%.2d%.2d%.2d", year, month, day);
       StockPtr->Date = date;    
       
       /* Open */
       ptr = strtok(NULL, ",");
       if (!ptr) return 0;
       sscanf(ptr,"%f",&(StockPtr->OpenPrice));      
 
       /* High */
       ptr = strtok(NULL, ",");
       if (!ptr) return 0;
       sscanf(ptr,"%f",&(StockPtr->MaxPrice));
 
       /* Low */
       ptr = strtok(NULL, ",");
       if (!ptr) return 0;
       sscanf(ptr,"%f",&(StockPtr->MinPrice));
 
       /* Close */
       ptr = strtok(NULL, ",");
       if (!ptr) return 0;
       sscanf(ptr,"%f",&(StockPtr->LastPrice));
 
       /* Volume */
 
       ptr = strtok(NULL, ",");
       if (!ptr) 
   /* It seems to be an indice */
   /* No volume for indices */
   StockPtr->Volume = 0;
       else
   StockPtr->Volume = atoi(ptr);
 
       if( !FirstStockPtr ) 
   {
     FirstStockPtr = StockPtr;
     StockPtr->PreviousStock = 0;
   }
       
       StockPtr->NextStock = 0;
       
       if (LastStockPtr) 
   {
     LastStockPtr->NextStock = StockPtr;
     StockPtr->PreviousStock = LastStockPtr;
   }
       
       LastStockPtr = StockPtr;
 
       end_line++;
       line = end_line;       
     }
     
   return (FirstStockPtr);
 }