rtpproxy: convert init to procd

Update rtpproxy init script to use procd.

Also increases the start priority to 90 (like the hotplug script) to
make sure rtpproxy is started before kamailio.

Fixes some whitespace issues along the way, too.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

net/rtpproxy/files/rtpproxy.init

@@ -1,17 +1,34 @@
 #!/bin/sh /etc/rc.common
 # Copyright (C) 2014 CESNET, z.s.p.o
+# Copyright (C) 2018 OpenWrt.org
 
-START=99
-RTPPROXY_BIN="/usr/bin/rtpproxy"
+START=90
 
-run_instance(){
-	local params="$1"
+NAME=rtpproxy
+COMMAND="/usr/bin/$NAME"
 
-	${RTPPROXY_BIN} $1
-	echo "[INFO] rtpproxy instance $2 has started"
+USE_PROCD=1
+
+#PROCD_DEBUG=1
+
+LOGGER="/usr/bin/logger -t $NAME"
+LOG_ERR="$LOGGER -p user.err -s"
+
+run_instance() {
+	procd_open_instance
+	procd_set_param command $COMMAND
+	procd_append_param command \
+		$1 \
+		-p "/var/run/$NAME-$2.pid" \
+		-f
+	# forward stderr to logd
+	procd_set_param stderr 1
+	procd_close_instance
+
+	$LOGGER instance $2 has started
 }
 
-check_param(){
+check_param() {
 	local param="$1"
 	local value="$2"
 	local default_value="$3"
@@ -25,7 +42,7 @@ check_param(){
 	fi
 }
 
-check_special_param(){
+check_special_param() {
 	local param="$1"
 
 	if [ "$param" != "" ]; then
@@ -46,25 +63,25 @@ handle_instance() {
 	check_param "-s" "$socket"
 	check_param "-l" "$ipaddr"
 	check_param "-6" "$ip6addr"
-	check_param "-u" "$user" "nobody"
+	check_param "-u" "$user"	"nobody"
+
 	check_special_param "$opts"
 
 	run_instance "$rtpproxy_options" "$site"
 }
 
-start(){
-	config_load rtpproxy
-	local section="global"
+start_service() {
+	local enabled
+
+	config_load $NAME
+
 	config_get_bool enabled global enabled 0
 
 	if [ "$enabled" -eq 1 ]; then
 		config_foreach handle_instance instance
 	else
-		echo "[WARNING] rtpproxy not yet configured. Edit /etc/config/rtpproxy first."
+		$LOG_ERR service not enabled
+		$LOG_ERR edit /etc/config/$NAME
 	fi
 }
 
-stop() {
-	killall rtpproxy
-}
-