commit d3a9d56143cf668c7d29b26a324a424d02036371
Author: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date:   1337109016 -0500

    Add the ability to force read-only configuration file access in a TDE application
    Force kde-config to use read-only access
    This closes Bug 293

diff --git a/kdecore/kconfigbackend.cpp b/kdecore/kconfigbackend.cpp
index 9ee9dd6..4ad0e5f 100644
--- a/kdecore/kconfigbackend.cpp
+++ b/kdecore/kconfigbackend.cpp
@@ -247,17 +247,22 @@ void KConfigBackEnd::changeFileName(const TQString &_fileName,
    mfileName = _fileName;
    resType = _resType;
    useKDEGlobals = _useKDEGlobals;
-   if (mfileName.isEmpty())
+   if (mfileName.isEmpty()) {
       mLocalFileName = TQString::null;
-   else if (!TQDir::isRelativePath(mfileName))
+   }
+   else if (!TQDir::isRelativePath(mfileName)) {
       mLocalFileName = mfileName;
-   else
-      mLocalFileName = KGlobal::dirs()->saveLocation(resType) + mfileName;
+   }
+   else {
+      mLocalFileName = KGlobal::dirs()->saveLocation(resType, TQString(), false) + mfileName;
+   }
 
-   if (useKDEGlobals)
+   if (useKDEGlobals) {
       mGlobalFileName = KGlobal::dirs()->saveLocation("config", TQString(), false) + TQString::fromLatin1("kdeglobals");
-   else
+   }
+   else {
       mGlobalFileName = TQString::null;
+   }
 
    d->localLastModified = TQDateTime();
    d->localLastSize = 0;
diff --git a/kdecore/kconfigbase.cpp b/kdecore/kconfigbase.cpp
index 9ad6600..c5c0a4e 100644
--- a/kdecore/kconfigbase.cpp
+++ b/kdecore/kconfigbase.cpp
@@ -1139,16 +1139,18 @@ static TQString translatePath( TQString path )
 
    // return original path, if it refers to another type of URL (e.g. http:/), or
    // if the path is already relative to another directory
-   if (!startsWithFile && path[0] != '/' ||
-        startsWithFile && path[5] != '/')
+   if (((!startsWithFile) && (path[0] != '/')) || (startsWithFile && (path[5] != '/'))) {
 	return path;
+   }
 
-   if (startsWithFile)
+   if (startsWithFile) {
         path.remove(0,5); // strip leading "file:/" off the string
+   }
 
    // keep only one single '/' at the beginning - needed for cleanHomeDirPath()
-   while (path[0] == '/' && path[1] == '/')
+   while (path[0] == '/' && path[1] == '/') {
 	path.remove(0,1);
+   }
 
    // we can not use KGlobal::dirs()->relativeLocation("home", path) here,
    // since it would not recognize paths without a trailing '/'.
diff --git a/kdecore/kinstance.cpp b/kdecore/kinstance.cpp
index fe0a515..5b3aa86 100644
--- ./kdecore/kinstance.cpp.orig	2011-08-11 04:30:15.000000000 +0200
+++ ./kdecore/kinstance.cpp	2012-06-18 23:34:55.942376042 +0200
@@ -70,7 +70,7 @@
   : _dirs (0L),
     _config (0L),
     _iconLoader (0L),
-    _name( name ), _aboutData( new KAboutData( name, "", 0 ) )
+    _name( name ), _aboutData( new KAboutData( name, "", 0 ) ), m_configReadOnly(false)
 {
     DEBUG_ADD
     Q_ASSERT(!name.isEmpty());
@@ -88,7 +88,7 @@
   : _dirs (0L),
     _config (0L),
     _iconLoader (0L),
-    _name( aboutData->appName() ), _aboutData( aboutData )
+    _name( aboutData->appName() ), _aboutData( aboutData ), m_configReadOnly(false)
 {
     DEBUG_ADD
     Q_ASSERT(!_name.isEmpty());
@@ -107,7 +107,7 @@
   : _dirs ( src->_dirs ),
     _config ( src->_config ),
     _iconLoader ( src->_iconLoader ),
-    _name( src->_name ), _aboutData( src->_aboutData )
+    _name( src->_name ), _aboutData( src->_aboutData ), m_configReadOnly(false)
 {
     DEBUG_ADD
     Q_ASSERT(!_name.isEmpty());
@@ -174,6 +174,11 @@
 extern bool kde_kiosk_exception;
 extern bool kde_kiosk_admin;
 
+void KInstance::setConfigReadOnly(bool ro)
+{
+    m_configReadOnly = ro;
+}
+
 KConfig	*KInstance::config() const
 {
     DEBUG_CHECK_ALIVE
@@ -199,7 +204,7 @@
         if ( d->sharedConfig == 0 )
         {
 	    if ( !_name.isEmpty() )
-	        d->sharedConfig = KSharedConfig::openConfig( _name + "rc");
+	        d->sharedConfig = KSharedConfig::openConfig( _name + "rc"), m_configReadOnly;
 	    else
 	        d->sharedConfig = KSharedConfig::openConfig( TQString::null );
 	}
diff --git a/kdecore/kinstance.h b/kdecore/kinstance.h
index 75cc4b4..444a2d8 100644
--- a/kdecore/kinstance.h
+++ b/kdecore/kinstance.h
@@ -96,6 +96,14 @@ class kdecore_EXPORT KInstance
     KSharedConfig      *sharedConfig() const;
 
     /**
+     * Set a read-only flag on the configuration files
+     * This must be called before config() or dirs() to have any effect
+     * Defaults to FALSE
+     * @param ro read only if TRUE
+     */
+    void                setConfigReadOnly(bool ro);
+
+    /**
      *  Returns an iconloader object.
      * @return the iconloader object.
      */
@@ -162,6 +170,7 @@ protected:
     virtual void virtual_hook( int id, void* data );
 private:
     KInstancePrivate *d;
+    bool m_configReadOnly;
 };
 
 #endif
diff --git a/kdecore/kstandarddirs.cpp b/kdecore/kstandarddirs.cpp
index bce4bf4..bb8ae97 100644
--- ./kdecore/kstandarddirs.cpp.orig	2011-08-21 06:15:32.000000000 +0200
+++ ./kdecore/kstandarddirs.cpp	2012-06-18 23:46:56.765409982 +0200
@@ -767,8 +766,12 @@
          srv = findExe(TQString::tqfromLatin1("lnusertemp"));
       if (!srv.isEmpty())
       {
-         system(TQFile::encodeName(srv)+" "+type);
-         result = readlink(TQFile::encodeName(dir).data(), link, 1023);
+         if (system(TQFile::encodeName(srv)+" "+type) < 0 ) {
+             result = readlink(TQFile::encodeName(dir).data(), link, 1023);
+         }
+         else {
+             result = -1;
+         }
       }
    }
    if (result > 0)
diff --git a/kdecore/kde-config.cpp.in b/kdecore/kde-config.cpp.in
index 90c5dae..c988b00 100644
--- a/kdecore/kde-config.cpp.in
+++ b/kdecore/kde-config.cpp.in
@@ -120,6 +120,7 @@ int main(int argc, char **argv)
     KCmdLineArgs::addCmdLineOptions( options ); // Add my own options.
 
     KInstance a("kde-config");
+    a.setConfigReadOnly(TRUE);
     (void)KGlobal::dirs(); // trigger the creation
     (void)KGlobal::config();