initscripts: add a local copy of devpts.sh

Start point to make SELinux specific changes in devpts.sh, copied from
oe-core layer.

Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
Signed-off-by: Xin Ouyang <xin.ouyang@windriver.com>

recipes-core/initscripts/initscripts/devpts.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides:          devpts
+# Required-Start: udev
+# Required-Stop:
+# Default-Start:     S
+# Default-Stop:
+# Short-Description: Mount /dev/pts file systems.
+### END INIT INFO
+
+. /etc/default/devpts
+
+if grep -q devpts /proc/filesystems
+then
+	#
+	#	Create multiplexor device.
+	#
+	test -c /dev/ptmx || mknod -m 666 /dev/ptmx c 5 2
+
+	#
+	#	Mount /dev/pts if needed.
+	#
+	if ! grep -q devpts /proc/mounts
+	then
+		mkdir -p /dev/pts
+		mount -t devpts devpts /dev/pts -ogid=${TTYGRP},mode=${TTYMODE}
+	fi
+fi

recipes-core/initscripts/initscripts_1.0.bbappend

@@ -1,5 +1,7 @@
 PR .= ".3"
 
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
 do_install_append () {
 	cat <<-EOF >> ${D}${sysconfdir}/init.d/populate-volatile.sh
 touch /var/log/lastlog