From e6e7711f65387bce7f598982c18f34cc203bf7a3 Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Mon, 25 Sep 2017 17:11:18 +0100
Subject: [PATCH] Only append to firewall list if needed

---
 src/freedombone-utils-firewall | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/freedombone-utils-firewall b/src/freedombone-utils-firewall
index 94f161f4..574faffa 100755
--- a/src/freedombone-utils-firewall
+++ b/src/freedombone-utils-firewall
@@ -146,7 +146,9 @@ function firewall_enable_vpn {
     iptables -A OUTPUT -o tun+ -j ACCEPT
     save_firewall_settings
 
-    echo "VPN=1194" >> $FIREWALL_CONFIG
+    if ! grep -q "VPN=" $FIREWALL_CONFIG; then
+        echo "VPN=1194" >> $FIREWALL_CONFIG
+    fi
 }
 
 function configure_firewall {