From 6f5f003e2b1c360a6cc99f4a234aea1ae9672424 Mon Sep 17 00:00:00 2001
From: Maxime Wack <maximewack@free.Fr>
Date: Mon, 10 Aug 2020 22:42:46 +0200
Subject: [PATCH] Fix possible division by zero in radius calculation.

Check all possible causes of division by zero in the
calculation of the radius.
---
 src/draw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/draw.c b/src/draw.c
index 0fde227..6a23f43 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -412,7 +412,7 @@ static int layout_get_height(struct colored_layout *cl)
  */
 static int frame_internal_radius (int r, int w, int h)
 {
-        if (r == 0 || w == 0 || h == 0)
+        if (r == 0 || h + (w - r) * 2 == 0)
                 return 0;
 
         // Integer precision scaler, using 1/4 of int size