From 144331e3b34b17cce51944310541e3de3a799aa2 Mon Sep 17 00:00:00 2001
From: Sevz17 <leohdz172@outlook.com>
Date: Sun, 6 Jun 2021 11:15:35 -0500
Subject: [PATCH] verify c->mon in setfullscreen()

try to open a client in fullscreen mode (example: foot -F) causes that
dwl crash, this prevent crash but isn't a solution, since client will
be open in normal mode, we must find a way to set c->mon in createnotify
function
---
 dwl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dwl.c b/dwl.c
index a8e1dcd..1180587 100644
--- a/dwl.c
+++ b/dwl.c
@@ -1018,6 +1018,9 @@ togglefullscreen(const Arg *arg)
 void
 setfullscreen(Client *c, int fullscreen)
 {
+	if (!c->mon)
+		return;
+
 	c->isfullscreen = fullscreen;
 	c->bw = (1 - fullscreen) * borderpx;
 	client_set_fullscreen(c, fullscreen);