Bug#859213: x11vnc: stack smashing detected: x11vnc terminated

[Alkis Georgopoulos]

I too tested the patch that changes the following 3 lines, and I no 
longer have x11vnc crashes. Please release that! :)

-       if (num > stack_list_len + blackouts) {
-               int n = 2*num;
+       if (num + blackouts > stack_list_len) {
+               int n = 2 * (num + blackouts);

-       for (i=0; i<req->length; i++) {
+       for (i = 0; i < req->length - sz_xConfigureWindowReq / 4 && i < 4; i++) 
{