Every file in this commit makes a call to a function which returns a value.

Each file also didn't check the return value.

This commit changes it so that every single non-checked call in these files
is checked.

12 files changed, 54 insertions, 42 deletions

diff --git a/noncore/apps/opie-console/filereceive.cpp b/noncore/apps/opie-console/filereceive.cpp
index 452be60..41e6888 100644
--- a/noncore/apps/opie-console/filereceive.cpp
+++ b/noncore/apps/opie-console/filereceive.cpp
@@ -1,11 +1,12 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <errno.h>
 
+#include <opie2/odebug.h>
 #include <qsocketnotifier.h>
 
 #include "io_layer.h"
 #include "procctl.h"
 #include "filereceive.h"
 
@@ -145,13 +146,14 @@ void FileReceive::slotRead() {
     }
     ar.resize( len );
     QString str( ar );
 }
 void FileReceive::slotExec() {
     char buf[2];
-    ::read(m_term[0], buf, 1 );
+    if (::read(m_term[0], buf, 1 ) == -1)
+	owarn << "read of m_term[0] failed" << oendl;
     delete m_proc;
     delete m_not;
     m_not = m_proc = 0l;
     close( m_term[0] );
     close( m_term[1] );
     close( m_comm[0] );
diff --git a/noncore/apps/opie-console/filetransfer.cpp b/noncore/apps/opie-console/filetransfer.cpp
index 7eebc65..6e2d2d5 100644
--- a/noncore/apps/opie-console/filetransfer.cpp
+++ b/noncore/apps/opie-console/filetransfer.cpp
@@ -1,12 +1,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
 
+#include <opie2/odebug.h>
 #include <qsocketnotifier.h>
 
 #include "procctl.h"
 #include "filetransfer.h"
 
 
@@ -231,13 +232,14 @@ void FileTransfer::slotProgress( const QStringList& list ) {
 void FileTransfer::cancel() {
     if(m_pid > 0) ::kill(m_pid,9 );
 
 }
 void FileTransfer::slotExec() {
     char buf[2];
-    ::read(m_term[0], buf, 1 );
+    if (::read(m_term[0], buf, 1 ) == -1)
+	owarn << "read of m_term[0] failed" << oendl;
     delete m_proc;
     delete m_not;
     m_proc = m_not = 0l;
     close( m_term[0] );
     close( m_term[1] );
     close( m_comm[0] );
diff --git a/noncore/apps/opie-console/logger.cpp b/noncore/apps/opie-console/logger.cpp
index 6620faf..0fdeca0 100644
--- a/noncore/apps/opie-console/logger.cpp
+++ b/noncore/apps/opie-console/logger.cpp
@@ -1,17 +1,19 @@
 #include <qfile.h>
 #include <qtextstream.h>
+#include <opie2/odebug.h>
 
 #include "logger.h"
 
 
 Logger::Logger() {}
 
 Logger::Logger(const QString fileName) {
 	m_file.setName(fileName);
-	m_file.open(IO_ReadWrite);
+	if ( !m_file.open(IO_ReadWrite) )
+	    owarn << "failed to open " << m_file.name() << oendl;
 }
 
 Logger::~Logger() {
 	m_file.close();
 }
 
diff --git a/noncore/apps/opie-console/mainwindow.cpp b/noncore/apps/opie-console/mainwindow.cpp
index 18c0434..aba7244 100644
--- a/noncore/apps/opie-console/mainwindow.cpp
+++ b/noncore/apps/opie-console/mainwindow.cpp
@@ -821,13 +821,14 @@ void MainWindow::slotSaveHistory() {
     nf.setType("text/plain");
     nf.setFile(filename);
     nf.setName(info.fileName());
 
 
     QFile file(filename);
-    file.open(IO_WriteOnly );
+    if ( !file.open(IO_WriteOnly ) ) return;
+
     QTextStream str(&file );
     if ( currentSession() )
         currentSession()->emulationHandler()->emulation()->streamHistory(&str);
 
     file.close();
     nf.writeLink();
diff --git a/noncore/apps/opie-console/script.cpp b/noncore/apps/opie-console/script.cpp
index faea412..8d35776 100644
--- a/noncore/apps/opie-console/script.cpp
+++ b/noncore/apps/opie-console/script.cpp
@@ -3,19 +3,21 @@
 
 Script::Script() {
 }
 
 Script::Script(const QString fileName) {
     QFile file(fileName);
-    file.open(IO_ReadOnly );
+    if ( !file.open(IO_ReadOnly ) )
+	return;
     m_script = file.readAll();
 }
 
 void Script::saveTo(const QString fileName) const {
     QFile file(fileName);
-    file.open(IO_WriteOnly);
+    if ( !file.open(IO_WriteOnly) )
+	return;
     file.writeBlock(m_script);
     file.close();
 }
 
 
 void Script::append(const QByteArray &data) {
diff --git a/noncore/apps/opie-gutenbrowser/gutenbrowser.cpp b/noncore/apps/opie-gutenbrowser/gutenbrowser.cpp
index 733db17..8b02f9f 100644
--- a/noncore/apps/opie-gutenbrowser/gutenbrowser.cpp
+++ b/noncore/apps/opie-gutenbrowser/gutenbrowser.cpp
@@ -842,28 +842,22 @@ bool Gutenbrowser::load( const char *fileName) {
 
 			//   QCopEnvelope("QPE/System", "notBusy()" );
 		return true;
 } // end load
 
 void Gutenbrowser::Search() {
-
-			//    if( searchDlg->isHidden())
-		{
 				odebug << "Starting search dialog" << oendl;
 				searchDlg = new SearchDialog( this, "Etext Search", true);
 				searchDlg->setCaption( tr( "Etext Search" ));
-					//        searchDlg->setLabel( "- searches etext");
 				connect( searchDlg,SIGNAL( search_signal()),this,SLOT( search_slot()));
 				connect( searchDlg,SIGNAL( search_done_signal()),this,SLOT( searchdone_slot()));
 
 				QString resultString;
 				QString string = searchDlg->searchString;
 				Lview->deselect();
 				searchDlg->show();
-				searchDlg->result();
-		}
 }
 
 void Gutenbrowser::search_slot( ) {
     int line, col;
     if (!searchDlg /*&& !loadCheck */)
 				return;
diff --git a/noncore/apps/opie-gutenbrowser/helpwindow.cpp b/noncore/apps/opie-gutenbrowser/helpwindow.cpp
index 4bdac02..f444a2e 100644
--- a/noncore/apps/opie-gutenbrowser/helpwindow.cpp
+++ b/noncore/apps/opie-gutenbrowser/helpwindow.cpp
@@ -193,39 +193,32 @@ HelpWindow::~HelpWindow()
     history.clear();
     QMap<int, QString>::Iterator it = mHistory.begin();
     for ( ; it != mHistory.end(); ++it )
   history.append( *it );
 
     QFile f( QDir::currentDirPath() + "/.history" );
-    f.open( IO_WriteOnly );
+    if ( f.open( IO_WriteOnly ) ) {
     QDataStream s( &f );
     s << history;
     f.close();
+    }
 
     bookmarks.clear();
     QMap<int, QString>::Iterator it2 = mBookmarks.begin();
     for ( ; it2 != mBookmarks.end(); ++it2 )
   bookmarks.append( *it2 );
 
     QFile f2( QDir::currentDirPath() + "/.bookmarks" );
-    f2.open( IO_WriteOnly );
+    if ( !f2.open( IO_WriteOnly ) )
+	return;
+
     QDataStream s2( &f2 );
     s2 << bookmarks;
     f2.close();
 }
 
-//  void HelpWindow::about()
-//  {
-//      QMessageBox::about( this, "Gutenbrowser", "<p>Thanks to Trolltech for this</p>" );
-//  }
-
-//  void HelpWindow::aboutQt()
-//  {
-//      QMessageBox::aboutQt( this, "QBrowser" );
-//  }
-
 void HelpWindow::openFile()
 {
 #ifndef QT_NO_FILEDIALOG
     QString fn = QFileDialog::getOpenFileName( QString::null, QString::null, this );
     if ( !fn.isEmpty() )
   browser->setSource( fn );
@@ -289,33 +282,38 @@ void HelpWindow::pathSelected( const QString &_path )
     if ( !exists )
   mHistory[ hist->insertItem( _path ) ] = _path;
 }
 
 void HelpWindow::readHistory()
 {
-    if ( QFile::exists( QDir::currentDirPath() + "/.history" ) ) {
+    if ( !QFile::exists( QDir::currentDirPath() + "/.history" ) )
+	return;
+
   QFile f( QDir::currentDirPath() + "/.history" );
-  f.open( IO_ReadOnly );
+    if ( !f.open( IO_ReadOnly ) )
+	return;
+
   QDataStream s( &f );
   s >> history;
   f.close();
   while ( history.count() > 20 )
       history.remove( history.begin() );
     }
-}
 
 void HelpWindow::readBookmarks()
 {
-    if ( QFile::exists( QDir::currentDirPath() + "/.bookmarks" ) ) {
+    if ( !QFile::exists( QDir::currentDirPath() + "/.bookmarks" ) )
+	return;
+
   QFile f( QDir::currentDirPath() + "/.bookmarks" );
-  f.open( IO_ReadOnly );
+    if ( !f.open( IO_ReadOnly ) )
+        return;
   QDataStream s( &f );
   s >> bookmarks;
   f.close();
     }
-}
 
 void HelpWindow::histChosen( int i )
 {
     if ( mHistory.contains( i ) )
   browser->setSource( mHistory[ i ] );
 }
diff --git a/noncore/graphics/opie-eye/slave/bmp_slave.cpp b/noncore/graphics/opie-eye/slave/bmp_slave.cpp
index 2fa825f..0efadac 100644
--- a/noncore/graphics/opie-eye/slave/bmp_slave.cpp
+++ b/noncore/graphics/opie-eye/slave/bmp_slave.cpp
@@ -79,16 +79,14 @@ namespace {
     {
         read_data();
     }
 
     void BmpHeader::read_data() {
         memset(&m_Header,0,sizeof(pBmpHeader));
-        _inputfile.open(IO_Raw|IO_ReadOnly);
-        if (!_inputfile.isOpen()) {
+        if (!_inputfile.open(IO_Raw|IO_ReadOnly))
             return;
-        }
         QDataStream s(&_inputfile);
         s.setByteOrder( QDataStream::LittleEndian );
         s.readRawBytes(m_Header.type,2);
         if (!isBmp()) {
             _inputfile.close();
             return;
diff --git a/noncore/net/ftplib/ftplib.c b/noncore/net/ftplib/ftplib.c
index 421f855..efcd6f0 100644
--- a/noncore/net/ftplib/ftplib.c
+++ b/noncore/net/ftplib/ftplib.c
@@ -955,13 +955,14 @@ GLOBALDEF int FtpWrite(void *buf, int len, netbuf *nData)
     if (nData->dir != FTPLIB_WRITE)
         return 0;
     if (nData->buf)
         i = writeline(buf, len, nData);
     else
       {
-          socket_wait(nData);
+          if (socket_wait(nData) < 0)
+	      fprintf(stderr, "FtpWrite: socket_wait failed with %s\n", nData->ctrl->response);
           i = net_write(nData->handle, buf, len);
       }
     if (i == -1)
         return 0;
     nData->xfered += i;
     if (nData->idlecb && nData->cbbytes)
@@ -1336,11 +1337,14 @@ GLOBALDEF int FtpDelete(const char *fnm, netbuf *nControl)
  * return 1 if successful, 0 otherwise
  */
 GLOBALDEF void FtpQuit(netbuf *nControl)
 {
     if (nControl->dir != FTPLIB_CONTROL)
         return;
-    FtpSendCmd("QUIT",'2',nControl);
+    if (FtpSendCmd("QUIT",'2',nControl) == 1) {
+        if (ftplib_debug > 2)
+	    fprintf(stderr, "FtpQuit: FtpSendCmd(QUIT) failed\n");
+    }
     net_close(nControl->handle);
     free(nControl->buf);
     free(nControl);
 }
diff --git a/noncore/todayplugins/stockticker/stockticker/helpwindow.cpp b/noncore/todayplugins/stockticker/stockticker/helpwindow.cpp
index 410d642..2498bf9 100644
--- a/noncore/todayplugins/stockticker/stockticker/helpwindow.cpp
+++ b/noncore/todayplugins/stockticker/stockticker/helpwindow.cpp
@@ -179,24 +179,26 @@ HelpWindow::~HelpWindow()
     history.clear();
     QMap<int, QString>::Iterator it = mHistory.begin();
     for ( ; it != mHistory.end(); ++it )
   history.append( *it );
 
     QFile f( QDir::currentDirPath() + "/.history" );
-    f.open( IO_WriteOnly );
+    if ( f.open( IO_WriteOnly ) ) {
     QDataStream s( &f );
     s << history;
     f.close();
+    }
 
     bookmarks.clear();
     QMap<int, QString>::Iterator it2 = mBookmarks.begin();
     for ( ; it2 != mBookmarks.end(); ++it2 )
   bookmarks.append( *it2 );
 
     QFile f2( QDir::currentDirPath() + "/.bookmarks" );
-    f2.open( IO_WriteOnly );
+    if ( !f2.open( IO_WriteOnly ) )
+	return;
     QDataStream s2( &f2 );
     s2 << bookmarks;
     f2.close();
 }
 
 void HelpWindow::openFile()
@@ -229,26 +231,28 @@ void HelpWindow::pathSelected( const QString &_path )
 }
 
 void HelpWindow::readHistory()
 {
     if ( QFile::exists( QDir::currentDirPath() + "/.history" ) ) {
   QFile f( QDir::currentDirPath() + "/.history" );
-  f.open( IO_ReadOnly );
+        if ( !f.open( IO_ReadOnly ) )
+	    return;
   QDataStream s( &f );
   s >> history;
   f.close();
   while ( history.count() > 20 )
       history.remove( history.begin() );
     }
 }
 
 void HelpWindow::readBookmarks()
 {
     if ( QFile::exists( QDir::currentDirPath() + "/.bookmarks" ) ) {
   QFile f( QDir::currentDirPath() + "/.bookmarks" );
-  f.open( IO_ReadOnly );
+            if ( !f.open( IO_ReadOnly ) )
+                return;
   QDataStream s( &f );
   s >> bookmarks;
   f.close();
     }
 }
 
diff --git a/noncore/todayplugins/weather/weatherpluginwidget.cpp b/noncore/todayplugins/weather/weatherpluginwidget.cpp
index fe54051..27624c5 100644
--- a/noncore/todayplugins/weather/weatherpluginwidget.cpp
+++ b/noncore/todayplugins/weather/weatherpluginwidget.cpp
@@ -101,13 +101,14 @@ void WeatherPluginWidget::retreiveData()
 	}
 
 	OProcess *proc = new OProcess;
 
 	*proc << "wget" << "-q" << remoteFile << "-O" << localFile;
 	connect( proc, SIGNAL( processExited(Opie::Core::OProcess*) ), this, SLOT( dataRetrieved(Opie::Core::OProcess*) ) );
-	proc->start();
+	if ( !proc->start() )
+	    weatherLabel->setText( tr( "Could not start wget process." ) );
 }
 
 void WeatherPluginWidget::displayWeather()
 {
 	weatherData = QString::null;
 
diff --git a/noncore/tools/opie-sh/inputdialog.cpp b/noncore/tools/opie-sh/inputdialog.cpp
index 8046795..1dd8bf7 100644
--- a/noncore/tools/opie-sh/inputdialog.cpp
+++ b/noncore/tools/opie-sh/inputdialog.cpp
@@ -37,18 +37,20 @@ InputDialog::InputDialog(int w, int h, int newtype, QString labelString, QString
 	case 1:
 		comboBox = new QComboBox(edit, this, "combo box");
 		layout->addWidget(comboBox);
 		if(!filename.isNull())
 		{
 			QFile file(filename);
-			file.open(IO_ReadOnly);
+			if (file.open(IO_ReadOnly))
+			{
 			QTextStream stream(&file);
 			QString string = stream.read();
 
 			comboBox->insertStringList(QStringList::split('\n', string));
 		}
+		}
 		else
 		{
 			QFile file;
 			file.open(IO_ReadOnly, 0);
 			QTextStream stream(&file);
 			QString string = stream.read();
@@ -60,18 +62,20 @@ InputDialog::InputDialog(int w, int h, int newtype, QString labelString, QString
 		listBox = new QListBox(this, "list box");
 		listBox->setSelectionMode(QListBox::Multi);
 		layout->addWidget(listBox);
 		if(!filename.isNull())
 		{
 			QFile file(filename);
-			file.open(IO_ReadOnly);
+			if (file.open(IO_ReadOnly))
+			{
 			QTextStream stream(&file);
 			QString string = stream.read();
 
 			listBox->insertStringList(QStringList::split('\n', string));
 		}
+		}
 		else
 		{
 			QFile file;
 			file.open(IO_ReadOnly, 0);
 			QTextStream stream(&file);
 			QString string = stream.read();