From f97d1c3644cb3e486e7d62f6da276f048c93e26c Mon Sep 17 00:00:00 2001
From: Mathieu Schroeter <mathieu@schroetersa.ch>
Date: Wed, 13 Dec 2017 23:01:48 +0100
Subject: [PATCH] Check that the zoom (-z) is in the range

---
 src/blupi.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/blupi.cxx b/src/blupi.cxx
index 7ea1505..515d38d 100644
--- a/src/blupi.cxx
+++ b/src/blupi.cxx
@@ -641,6 +641,8 @@ parseArgs (int argc, char * argv[], bool & exit)
   if (args["zoom"])
   {
     g_windowScale = args["zoom"];
+    if (g_windowScale != 1 && g_windowScale != 2)
+      g_windowScale = 1;
     g_settingsOverload |= SETTING_ZOOM;
   }