fix segfault after last packet when capturing from capture file

1 files changed, 9 insertions, 2 deletions

diff --git a/noncore/net/wellenreiter/gui/wellenreiter.cpp b/noncore/net/wellenreiter/gui/wellenreiter.cpp
index b4b6aa3..0105e09 100644
--- a/noncore/net/wellenreiter/gui/wellenreiter.cpp
+++ b/noncore/net/wellenreiter/gui/wellenreiter.cpp
@@ -362,28 +362,35 @@ void Wellenreiter::startClicked()
         connect( iface->channelHopper(), SIGNAL( hopped(int) ), this, SLOT( channelHopped(int) ) );
     }
     else
     {
         // start timer for reading packets
         startTimer( 100 );
     }
 
     logwindow->log( "(i) Started Scanning." );
     sniffing = true;
     emit( startedSniffing() );
     if ( cardtype != DEVTYPE_FILE ) channelHopped( 6 ); // set title
     else
     {
         assert( parent() );
         ( (QMainWindow*) parent() )->setCaption( "Wellenreiter II - replaying capture file..." );
     }
 }
 
 
 void Wellenreiter::timerEvent( QTimerEvent* )
 {
     qDebug( "Wellenreiter::timerEvent()" );
     OPacket* p = pcap->next();
-    receivePacket( p );
-    delete p;
+    if ( !p ) // no more packets available
+    {
+        stopClicked();
+    }
+    else
+    {
+        receivePacket( p );
+        delete p;
+    }
 }