fix memory leaks detected using valgrind

ChangeLog

 2005-05-14  Karl Runge <runge@karlrunge.com>
 	* x11vnc: more work on -scrollcopyrect and -xkb modes.
 
+2005-05-13  Johannes E. Schindelin  <Johannes.Schindelin@gmx.de>
+	* libvncserver/{main,rfbserver,sockets}.c: fix memory leaks (valgrind)
+
 2005-05-07  Johannes E. Schindelin  <Johannes.Schindelin@gmx.de>
 	* libvncserver/rfbserver.c: fix memory leak pointed out by Tim Jansen
 	* libvncserver/{httpd,main,rfbserver,sockets}.c, rfb/rfb.h:

examples/example.c

@@ -258,6 +258,7 @@ void MakeRichCursor(rfbScreenInfoPtr rfbScreen)
   c->xhot = 16; c->yhot = 24;
 
   c->richSource = (char*)malloc(w*h*bpp);
+  c->cleanupRichSource = TRUE;
   for(j=0;j<h;j++) {
     for(i=0;i<w;i++) {
       c->richSource[j*w*bpp+i*bpp+0]=i*0xff/w;

libvncserver/main.c

@@ -532,7 +532,7 @@ rfbScreenInfoPtr rfbGetScreen(int* argc,char** argv,
  int width,int height,int bitsPerSample,int samplesPerPixel,
  int bytesPerPixel)
 {
-   rfbScreenInfoPtr screen=malloc(sizeof(rfbScreenInfo));
+   rfbScreenInfoPtr screen=calloc(sizeof(rfbScreenInfo),1);
 
    INIT_MUTEX(logMutex);
 
@@ -759,6 +759,7 @@ void rfbShutdownServer(rfbScreenInfoPtr screen,rfbBool disconnectClients) {
       if (cl->sock > -1)
 	/* we don't care about maxfd here, because the server goes away */
 	rfbCloseClient(cl);
+    rfbReleaseClientIterator(iter);
   }
 
   rfbShutdownSockets(screen);

libvncserver/rfbserver.c

@@ -413,7 +413,7 @@ rfbClientConnectionGone(cl)
     if (cl->next)
         cl->next->prev = cl->prev;
 
-    if(cl->sock)
+    if(cl->sock>0)
 	close(cl->sock);
 
 #ifdef LIBVNCSERVER_HAVE_LIBZ
@@ -610,6 +610,8 @@ rfbProcessClientInitMessage(cl)
         return;
     }
 
+    memset(buf,0,256);
+
     si->framebufferWidth = Swap16IfLE(cl->screen->width);
     si->framebufferHeight = Swap16IfLE(cl->screen->height);
     si->format = cl->screen->serverFormat;
@@ -617,10 +619,7 @@ rfbProcessClientInitMessage(cl)
     si->format.greenMax = Swap16IfLE(si->format.greenMax);
     si->format.blueMax = Swap16IfLE(si->format.blueMax);
 
-    if (strlen(cl->screen->desktopName) > 128)      /* sanity check on desktop name len */
-        ((char*)cl->screen->desktopName)[128] = 0;
-
-    strcpy(buf + sz_rfbServerInitMsg, cl->screen->desktopName);
+    strncpy(buf + sz_rfbServerInitMsg, cl->screen->desktopName, 127);
     len = strlen(buf + sz_rfbServerInitMsg);
     si->nameLength = Swap32IfLE(len);