From eaedf7026248b353409a1da6bed201fc0e8ff3bc Mon Sep 17 00:00:00 2001
From: Ivan Kanakarakis <ivan.kanak@gmail.com>
Date: Mon, 9 Jul 2012 22:36:13 +0300
Subject: rework change_desktop function - check bounds

---
 monsterwm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/monsterwm.c b/monsterwm.c
index bbee69c..8fbf554 100644
--- a/monsterwm.c
+++ b/monsterwm.c
@@ -213,7 +213,7 @@ void buttonpress(XEvent *e) {
  * then unmap the old windows
  * first all others then the current */
 void change_desktop(const Arg *arg) {
-    if (arg->i == currdeskidx) return;
+    if (arg->i == currdeskidx || arg->i < 0 || arg->i >= DESKTOPS) return;
     Desktop *d = &desktops[currdeskidx], *n = &desktops[(currdeskidx = arg->i)];
     if (n->curr) XMapWindow(dis, n->curr->win);
     for (Client *c = n->head; c; c = c->next) XMapWindow(dis, c->win);
-- 
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