From 892a88e3cc526259391f42279b28fca5e0ad285b Mon Sep 17 00:00:00 2001
From: billz <billzimmerman@gmail.com>
Date: Sun, 29 Mar 2020 14:14:12 +0000
Subject: [PATCH] test for $interface before changing daemon, chk status of br0

---
 installers/raspapd.service |  2 +-
 installers/servicestart.sh | 13 ++++++++-----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/installers/raspapd.service b/installers/raspapd.service
index c5738465..a87832c0 100644
--- a/installers/raspapd.service
+++ b/installers/raspapd.service
@@ -16,7 +16,7 @@ After=multi-user.target
 
 [Service]
 Type=oneshot
-ExecStart=/bin/bash /etc/raspap/hostapd/servicestart.sh --interface uap0 --seconds 3
+ExecStart=/bin/bash /etc/raspap/hostapd/servicestart.sh --seconds 3
 RemainAfterExit=no
 
 [Install]
diff --git a/installers/servicestart.sh b/installers/servicestart.sh
index 4504e43e..0d6ea4de 100755
--- a/installers/servicestart.sh
+++ b/installers/servicestart.sh
@@ -48,7 +48,7 @@ if [ "${action}" = "stop" ]; then
     exit 0
 fi
 
-if [ -f "$DAEMONPATH" ]; then
+if [ -f "$DAEMONPATH" ] && [ ! -z "$interface" ]; then
     echo "Changing RaspAP Daemon --interface to $interface"
     sed -i "s/\(--interface \)[[:alnum:]]*/\1$interface/" "$DAEMONPATH"
 fi
@@ -77,11 +77,14 @@ if [ -r "$CONFIGFILE" ]; then
         fi
     else
         echo "Disabling systemd-networkd"
--       systemctl disable systemd-networkd
+        systemctl disable systemd-networkd
 
-        echo "Removing br0 interface..."
-        ip link set down br0
-        ip link del dev br0
+        ip link ls up | grep -q 'br0' &> /dev/null
+        if [ $? == 0 ]; then
+            echo "Removing br0 interface..."
+            ip link set down br0
+            ip link del dev br0
+        fi
 
         if [ "${config[WifiAPEnable]}" = 1 ]; then
             if [ "${interface}" = "uap0" ]; then