http://packetstorm.tacticalflex.com/UNIX/admin/xscreensaver-3.27.tar.gz

[xscreensaver] / utils / erase.c

diff --git a/utils/erase.c b/utils/erase.c
index 851b5b490dfce2006d43377b00173e249bb0d3c9..f3d6de8b49ebc8942972838a40b5fb846f8c7fe2 100644 (file)
--- a/utils/erase.c
+++ b/utils/erase.c
@@ -348,7 +348,8 @@ fizzle (Display *dpy, Window window, GC gc,
         for( ix = 0, cx = 0; ix < width; ix += BX, cx++ ) {
           int xx = ix + (SKEWX(cx, cy) + x*((cx%(BX-1))+1))%BX;
           int yy = iy + (SKEWY(cx, cy) + y*((cy%(BY-1))+1))%BY;
-          XDrawPoint(dpy, window, gc, xx, yy);
+          if (xx < width && yy < height)
+            XDrawPoint(dpy, window, gc, xx, yy);
         }
       }
     }