From 09e072c902886a7c961e7e88240921e78e735764 Mon Sep 17 00:00:00 2001
From: makefu <github@syntax-fehler.de>
Date: Thu, 23 May 2013 17:52:05 +0200
Subject: add error handling for easybox_keygen

---
 usr/bin/easybox_keygen | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'usr/bin')

diff --git a/usr/bin/easybox_keygen b/usr/bin/easybox_keygen
index e9a9beca..daedb602 100755
--- a/usr/bin/easybox_keygen
+++ b/usr/bin/easybox_keygen
@@ -5,7 +5,7 @@
 # www.wotan.cc
 # 
 
-MAC=$1
+MAC=${1?\$1 must be MAC}
 
 # Take the last 2 Bytes of the MAC-Address (0B:EC), and convert it to decimal.
 
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