* luci/contrib/olsr: fix initscript to not kill itself sometimes

contrib/package/olsrd-luci/files/etc/init.d/olsrd

@@ -3,6 +3,10 @@
 # Special thanks to bittorf wireless ))
 START=50
 
+BIN=/usr/sbin/olsrd
+CONF=/var/etc/olsrd.conf
+PID=/var/run/olsrd.pid
+
 OLSRD_OLSRD_SCHEMA='ignore:internal config_file:internal DebugLevel=0 IpVersion=4 AllowNoInt:bool=1 Pollrate=0.025 TcRedundancy=2 MprCoverage=3 LinkQualityFishEye=1 LinkQualityWinSize=100 LinkQualityDijkstraLimit=0+9.0 LinkQualityLevel=2 UseHysteresis:bool=0 FIBMetric=flat ClearScreen:bool=1 Willingness=3 LinkQualityAging=0.1 LinkQualityAlgorithm=etx_fpm'
 OLSRD_IPCCONNECT_SCHEMA='ignore:internal Host:list Net:list2'
 OLSRD_LOADPLUGIN_SCHEMA='ignore:internal library:internal Host:list Net:list2 Ping:list redistribute:list NonOlsrIf:list name:list lat lon latlon_infile HNA:list2 hosts:list2'
@@ -516,6 +520,14 @@ olsrd_write_config() {
 }
 
 start() {
+	### check for running instance
+	if [ -s $PID ]; then
+		if kill -0 $(cat $PID) 2>&-; then
+			echo "there is already a running instance ($(cat $PID))"
+			return 1
+		fi
+	fi
+	
 	SYSTEM_HOSTNAME=
 	SYSTEM_LAT=
 	SYSTEM_LON=
@@ -539,18 +551,26 @@ start() {
 	config_foreach olsrd_find_config_file olsrd
 
 	if [ -z "$OLSRD_CONFIG_FILE" ]; then
-		mkdir -p -- /var/etc/
-		olsrd_write_config > /var/etc/olsrd.conf
+		### generate config
+		mkdir -p ${CONF%/*}
+		olsrd_write_config > $CONF
 		if [ "$INTERFACES_COUNT" -gt 0 -a "$OLSRD_COUNT" -gt 0 ]; then
-			OLSRD_CONFIG_FILE=/var/etc/olsrd.conf
+			OLSRD_CONFIG_FILE=$CONF
 		fi
 	fi
 
 	[ -z "$OLSRD_CONFIG_FILE" ] && return 1
 
-	olsrd -f "$OLSRD_CONFIG_FILE" -nofork < /dev/null > /dev/null &
+	### start olsrd
+	start-stop-daemon -b -m -p $PID -x $BIN -S -- -f $CONF -nofork
 }
 
 stop() {
-	killall olsrd
+	### stop olsrd
+	start-stop-daemon -q -p $PID -a ${BIN##*/} -K
+}
+
+restart() {
+	### override generic restart because we need some time between stop and start
+	stop; sleep 3; start
 }