From 838925a6247dd28c73c2b585fff24797e1068531 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Thu, 1 May 2014 19:48:00 +0200
Subject: [PATCH] dhcp: Check if GREEN_DEV and BLUE_DEV are actually set.

---
 src/initscripts/init.d/dhcp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/initscripts/init.d/dhcp b/src/initscripts/init.d/dhcp
index bc0abcee6..083a555a3 100644
--- a/src/initscripts/init.d/dhcp
+++ b/src/initscripts/init.d/dhcp
@@ -20,13 +20,13 @@ case "$1" in
 	start)
 		flush_chains
 
-		if [ -e /var/ipfire/dhcp/enable_green ]; then
+		if [ -n "${GREEN_DEV}" -a -e "/var/ipfire/dhcp/enable_green" ]; then
 			devices="${GREEN_DEV}"
 
 			iptables -A DHCPGREENINPUT  -i "${GREEN_DEV}" -j DHCPINPUT
 			iptables -A DHCPGREENOUTPUT -o "${GREEN_DEV}" -j DHCPOUTPUT
 		fi
-		if [ -e /var/ipfire/dhcp/enable_blue ]; then
+		if [ -n "${BLUE_DEV}" -a -e "/var/ipfire/dhcp/enable_blue" ]; then
 			devices+=" ${BLUE_DEV}"
 
 			iptables -A DHCPBLUEINPUT  -i "${BLUE_DEV}" -j DHCPINPUT
@@ -35,7 +35,7 @@ case "$1" in
 
 		boot_mesg "Starting DHCP Server..."
 		loadproc /usr/sbin/dhcpd -q ${devices}
-		
+
 		(sleep 5 && chmod 644 /var/run/dhcpd.pid) & # Fix because silly dhcpd creates its pid with mode 640
 		;;
 
-- 
2.39.2