1 files changed, 5 insertions, 8 deletions
diff --git a/nx-X11/programs/Xserver/Xi/grabdev.c b/nx-X11/programs/Xserver/Xi/grabdev.c
index 3b124a0f4..21e920a35 100644
--- a/nx-X11/programs/Xserver/Xi/grabdev.c
+++ b/nx-X11/programs/Xserver/Xi/grabdev.c
@@ -87,8 +87,6 @@ SProcXGrabDevice(client)
     register ClientPtr client;
     {
     register char n;
-    register long *p;
-    register int i;
 
     REQUEST(xGrabDeviceReq);
     swaps(&stuff->length, n);
@@ -96,12 +94,11 @@ SProcXGrabDevice(client)
     swapl(&stuff->grabWindow, n);
     swapl(&stuff->time, n);
     swaps(&stuff->event_count, n);
-    p = (long *) &stuff[1];
-    for (i=0; i<stuff->event_count; i++)
-        {
-        swapl(p, n);
-	p++;
-        }
+
+    if (stuff->length != (sizeof(xGrabDeviceReq) >> 2) + stuff->event_count)
+       return BadLength;
+    
+    SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
 
     return(ProcXGrabDevice(client));
     }