Avoid some variable aliasing

common/rfb/CSecurity.h

   class CConnection;
   class CSecurity {
   public:
-    CSecurity(CConnection* cc) { this->cc = cc; }
+    CSecurity(CConnection* cc_) : cc(cc_) {}
     virtual ~CSecurity() {}
     virtual bool processMsg() = 0;
     virtual int getType() const = 0;

common/rfb/SSecurity.h

 
   class SSecurity {
   public:
-    SSecurity(SConnection* sc) { this->sc = sc; }
+    SSecurity(SConnection* sc_) : sc(sc_) {}
     virtual ~SSecurity() {}
     virtual bool processMsg() = 0;
     virtual int getType() const = 0;

unix/xserver/hw/vnc/XserverDesktop.cc

                                std::list<network::SocketListener*> listeners_,
                                const char* name, const rfb::PixelFormat &pf,
                                int width, int height,
-                               void* fbptr, int stride)
+                               void* fbptr, int stride_)
   : screenIndex(screenIndex_),
     server(0), listeners(listeners_),
     shadowFramebuffer(NULL),
   format = pf;
 
   server = new VNCServerST(name, this);
-  setFramebuffer(width, height, fbptr, stride);
+  setFramebuffer(width, height, fbptr, stride_);
 
   for (std::list<SocketListener*>::iterator i = listeners.begin();
        i != listeners.end();
   }
 }
 
-void XserverDesktop::sendClipboardData(const char* data)
+void XserverDesktop::sendClipboardData(const char* data_)
 {
   try {
-    server->sendClipboardData(data);
+    server->sendClipboardData(data_);
   } catch (rdr::Exception& e) {
     vlog.error("XserverDesktop::sendClipboardData: %s",e.str());
   }
   region.get_rects(&rects);
   for (i = rects.begin(); i != rects.end(); i++) {
     rdr::U8 *buffer;
-    int stride;
+    int bufStride;
 
-    buffer = getBufferRW(*i, &stride);
+    buffer = getBufferRW(*i, &bufStride);
     vncGetScreenImage(screenIndex, i->tl.x, i->tl.y, i->width(), i->height(),
-                      (char*)buffer, stride * format.bpp/8);
+                      (char*)buffer, bufStride * format.bpp/8);
     commitBufferRW(*i);
   }
 }