#!/bin/sh
#
# hdw - linux /etc/init.d/down (copied from ROCK Linux)
#
# shutdown and reboot script.
#

exec 2>&1

export PATH=/bin:/sbin:/usr/bin:/usr/sbin

case "$1" in
	*halt)   command=halt   ;;
	*reboot) command=reboot ;;
	*)       echo "never call this script directly !" ; exit 1 ;;
esac

touch /var/log/init.msg /var/log/boot.msg
mv /var/log/init.msg /var/log/init.old
mv /var/log/boot.msg /var/log/boot.old

echo "** shutting down hdw-linux **"

. /etc/conf/bootdown
[ -f /fastdown ] && FASTDOWN=1
[ $FASTDOWN = 1 ] && echo "fast shutdown mode enabled."

echo "writing a wtmp record ..."
$command -w 

echo "saving kernel random seed ..."
dd if=/dev/urandom of=/var/state/random-seed count=1 2> /dev/null

if [ $FASTDOWN = 1 ]
then
	echo "sending all processes a SIGTERM (15) ..."
	killall5 -15 ; sleep 3
	echo "sending all processes a SIGKILL (9) ..."
	killall5 -9 ; sleep 2
else
	echo "sending all processes a SIGTERM (15) ..."
	killall5 -15 ; sleep 5
	echo "sending all processes a 2nd SIGTERM (15) ..."
	killall5 -15 ; sleep 3
	echo "sending all processes a SIGKILL (9) ..."
	killall5 -9 ; sleep 3
	echo "sending all processes a 2nd SIGKILL (9) ..."
	killall5 -9 ; sleep 3
fi

echo "turning off swap ..."
swapoff -a ; sync ; sleep 1

if [ $FASTDOWN = 1 ]
then
	echo "unmounting file systems ..."
	umount -vnra -t noproc,devfs,shm
	mount -vn -o remount,ro /
	sleep 1 ; sync ; sleep 1
else
	echo "remounting sync/ro and umount filesystems ..."
	grep -v '^none ' /etc/mtab /proc/mounts | grep -v ' / ' | \
	cut -f1,2 -d' ' | sort -u -k2 -t' ' | sort -r -k2 -t' ' | \
	while read dev fs ; do
		echo -n "$dev on $fs: sync" ; mount -o remount,sync $fs
		echo -n " ro"  ; mount -o remount,ro $fs
		echo " umount" ; umount $fs
	done

	echo "shutting down udev ..."
	/etc/init.d/udev stop
	umount /dev/pts ; rm -rf /dev/pts
	umount /dev/shm ; rm -rf /dev/shm
	umount /dev

	echo "unmounting remaining file systems ..."
	sync ; sleep 1 ; sync
	grep -E -v '^none (/|[a-z]+:) ' /proc/mounts > /etc/mtab
	umount -vnra -t noproc,devfs,shm
	mount -vn -o remount,sync /
	mount -vn -o remount,ro /
	sleep 1 ; sync ; sleep 1
fi

echo "going to $command the system ..."
exec $command -d -f -i -p