fix crash on kernels without swap support. patch courtesy Seneca Cunningham

2 files changed, 9 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index f2c8b4c..d2c386c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,65 +1,66 @@
         2005-??-??Opie 1.2.1
         
         
         New Features
         ------------
-        * OpieStumbler: New application (skyhusker)
+        * OpieStumbler: Scans WiFi networks using the wireless extension scanning (skyhusker)
 
         Fixed Bugs
         ----------
                 * #1535- Missing line break and unnecessary location shown with Today-Calendar plugin (deller)
         * #1565 - crash-fix in odevice.cpp while scanning the distribution table (deller)
         * #1614 - Make Opie-console start in $HOME instead of / (skyhusker)
                 * n.a.- always show volume and wireless applet popups inside visible screen (deller)
         * n.a.  - scale O-Menu-Applets appropriately (mickeyl)
                 * n.a.- libopienet: fix bugs in wireless scanning and setting SSID (skyhusker)
                 * n.a.- Wellenreiter: relax WE version matching test a bit (mickeyl)
                 * n.a.- scale BluezApplet appropriately (mickeyl)
+                * n.a.- memoryapplet: fix crash in memoryapplet on kernels without swap support (seneca cunningham)
 
         Internal
         --------
         * make BluezApplet use OTaskbarApplet (mickeyl)
 
         2005-03-25Opie 1.2.0
 
         Fixed Bugs
         ----------
         * #1613 - AdvancedFM - scale toolbar icons appropriately (drw)
         * #1620 - OFileSelector - show the button on press and not on press on hold (alwin)
         * #1473 - Opie-Eye - Same as #1620 but we lack a common FileSystem Button class (zecke)
         * n.a.  - PackageManager - fix bug where messages show up multiple times in install dialog (drw)
                 * n.a.- make qpeglobal.h include qglobal.h (zecke)
 
         2005-03-20Opie 1.2.0-rc1
 
 
         New Features
         ------------
         * Launcher: Support a static background pixmap (mickeyl)
         * LauncherSettings: Choose whether to have a static background pixmap (mickeyl)
         * PackageManager supports the 'lists_dir' ipkg configuration option (drw)
         * Added hi-res inline images for large resolution devices (drw)
         * Improved launcher icons for consistency (ar)
         * Datebook: Added plugin system to datebook so holidays and birthdays from contacts may displayed in datebook (alwin)
 
         Fixed Bugs
         ----------
         * #1236 - VCards contained empty home and work address entries causing Palms to crash (eilers)
         * #1412 - Launcher Settings - fixed default settings for background in Edit tab dialog (drw)
         * #1472 - Opie textedit now check for unsaved changes on ESC key (ljp)
         * #1474 - Implement GUI for Scrollbars on the Left in Appearance (zecke)
         * #1482 - Fix double '/' in paths (zecke)
         * #1536 - Autosave of custom locations in opie backup (ar)
         * #1539 - Fixed displaying too long path in the delete dialog in opie-eye (zecke)
         * #1540 - Implemented deletion of DocLnks in opie-eye (zecke)
         * #1542 - Fixed Todo crash when priority < 1 or > 5 (drw)
         * #1550 - Browse for alarm sound start in QPEDIR/sounds/ (zecke)
         * #1554 - Fixed Opie-Console name in .desktop file (mickeyl)
         * #1556 - Start to look for sound files in /opt/QtPalmtop/sounds (zecke)
         * #1558 - Fixed opie-login breaking opie startup (mickeyl)
         * #1560 - Fixed Opie-Console picking up the wrong shell (bluelightning)
         * #1570 - Confirmation needed befor Restore a backup and overwrite local data (ar)
         * #1591 - Addressbook sortorder changed by clicking on column 0 (eilers)
         * #1599 - Security - change recommendation for opie-multiauth to opie-securityplugin (gints)
         * #1604 - Checkbook crashed on startup (drw)
         * #1608 - Addressbook crashed after search, which may caused by not initialzed member variable (eilers)
diff --git a/noncore/applets/memoryapplet/swapfile.cpp b/noncore/applets/memoryapplet/swapfile.cpp
index 4609c13..50c173b 100644
--- a/noncore/applets/memoryapplet/swapfile.cpp
+++ b/noncore/applets/memoryapplet/swapfile.cpp
@@ -1,106 +1,112 @@
 /**********************************************************************
 ** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+** Copyright (C) 2002-2005 the Opie Team <opie-devel@handhelds.org>
 **
-** This file is part of Qtopia Environment.
+** This file is part of Opie 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 "swapfile.h"
 
 /* OPIE */
 #include <opie2/odebug.h>
 #include <qpe/resource.h>
 using namespace Opie::Core;
 
 /* QT */
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qlabel.h>
 #include <qtimer.h>
 #include <qlayout.h>
 #include <qpushbutton.h>
 #include <qhbuttongroup.h>
 #include <qradiobutton.h>
 #include <qlineedit.h>
 #include <qprogressbar.h>
 #include <qcombobox.h>
 #include <qvgroupbox.h>
 #include <qhbox.h>
 #include <qmessagebox.h>
 #include <qcopchannel_qws.h>
 
 /* STD */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/vfs.h>
 #include <mntent.h>
 #include <unistd.h>
 #include <sys/types.h>
 
 Swapfile::Swapfile( QWidget *parent, const char *name, WFlags f )
     : QWidget( parent, name, f )
 {
+        if ( !QFile::exists( "/proc/swaps" ) )
+        {
+                QLabel *text = new QLabel( tr( "Swap disabled in kernel" ), this );
+                return;
+        }
         // are we running as root?
         isRoot = geteuid() == 0;
 
         QVBoxLayout* vb = new QVBoxLayout(this, 5);
 
         QHButtonGroup* cfsdRBG = new QHButtonGroup(tr("Swapfile location"), this);
         cfsdRBG->setRadioButtonExclusive(true);
         vb->addWidget(cfsdRBG);
 
         ramRB = new QRadioButton(tr("RAM"), cfsdRBG);
         cfRB = new QRadioButton(tr("CF Card"), cfsdRBG);
         sdRB = new QRadioButton(tr("SD Card"), cfsdRBG);
 
         QHBox *hb1 = new QHBox(this);
         hb1->setSpacing(5);
 
         swapPath1 = new QLineEdit(hb1);
         swapPath1->setEnabled(false);
 
         QPushButton* swapOn = new QPushButton(tr(" On "), hb1);
         QPushButton* swapOff = new QPushButton(tr(" Off "), hb1);
         vb->addWidget(hb1);
 
         QVGroupBox* box1 = new QVGroupBox(tr("Manage Swapfile"), this);
         vb->addWidget(box1);
 
         QHBox *hb2 = new QHBox(box1);
         hb2->setSpacing(5);
         QPushButton* mkSwap = new QPushButton(tr("Generate"), hb2);
         QPushButton* rmSwap = new QPushButton(tr("Remove"), hb2);
 
         QHBox *hb3 = new QHBox(box1);
         hb3->setSpacing(5);
         swapSize = new QComboBox(hb3);
         swapSize->insertStringList(QStringList::split(",", tr("2 Mb,4 Mb,6 Mb,8 Mb,16 Mb,32 Mb,64 Mb")));
 
         mkswapProgress = new QProgressBar(3, hb3);
         mkswapProgress->setCenterIndicator(true);
 
         QHBox *hb4 = new QHBox(this);
         hb4->setSpacing(5);
 
         swapStatusIcon = new QLabel(hb4);
         swapStatus = new QLabel("", hb4);
         hb4->setStretchFactor(swapStatus, 99);
     vb->addWidget(hb4);
 
     connect(swapOn, SIGNAL(clicked()), this, SLOT(swapon()));