dhcpcd: add SysV start-up script

Add System V start-up script for dhcpcd that is run after the network
has been brought up.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/dhcpcd/S41dhcpcd

@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# Start/stop dhcpcd
+#
+
+DAEMON=/sbin/dhcpcd
+CONFIG=/etc/dhcpcd.conf
+PIDFILE=/var/run/dhcpcd.pid
+
+[ -x $DAEMON ] || exit 0
+[ -f $CONFIG ] || exit 0
+
+case "$1" in
+  start)
+	echo "Starting dhcpcd..."
+	start-stop-daemon -S -x "$DAEMON" -p "$PIDFILE" -- -f "$CONFIG"
+	;;
+  stop)
+	echo "Stopping dhcpcd..."
+	start-stop-daemon -K -x "$DAEMON" -p "$PIDFILE" -o
+	;;
+  reload|force-reload)
+	echo "Reloading dhcpcd configuration..."
+	"$DAEMON" -s reload
+	;;
+  restart)
+	"$0" stop
+	sleep 1 # Prevent race condition: ensure dhcpcd stops before start.
+	"$0" start
+	;;
+  *)
+	echo "Usage: $0 {start|stop|restart|reload|force-reload}"
+	exit 1
+esac

package/dhcpcd/dhcpcd.mk

@@ -36,6 +36,11 @@ define DHCPCD_INSTALL_TARGET_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) install DESTDIR=$(TARGET_DIR)
 endef
 
+define DHCPCD_INSTALL_INIT_SYSV
+	$(INSTALL) -m 755 -D package/dhcpcd/S41dhcpcd \
+		$(TARGET_DIR)/etc/init.d/S41dhcpcd
+endef
+
 # NOTE: Even though this package has a configure script, it is not generated
 # using the autotools, so we have to use the generic package infrastructure.