NetBSD/etc/rc.shutdown

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#!/bin/sh
#
# $NetBSD: rc.shutdown,v 1.8 2002/05/19 01:01:33 lukem Exp $
#
# rc.shutdown --
# Run the scripts in /etc/rc.d with reverse rcorder.
# System shutdown script run by shutdown(8) at system shutdown time.
# Note that halt(8) and reboot(8) do NOT invoke this script.
export HOME=/
export PATH=/sbin:/bin:/usr/sbin:/usr/bin
. /etc/rc.subr
. /etc/rc.conf
if ! checkyesno do_rcshutdown; then
echo "Skipping shutdown hooks."
exit 0
fi
stty status '^T'
# Set shell to ignore SIGINT, but not children;
# shell catches SIGQUIT and returns to single user.
#
trap : INT
trap "echo 'Shutdown interrupted.'; exit 1" QUIT
# If requested, start a watchdog timer in the background which
# will terminate rc.shutdown if rc.shutdown doesn't complete
# within the specified time.
#
_rcshutdown_watchdog=
if [ -n "$rcshutdown_timeout" ]; then
sleep $rcshutdown_timeout && (
_msg="$rcshutdown_timeout second watchdog timeout expired. Shutdown terminated."
logger -t rc.shutdown "$_msg"
echo "$_msg"
date
kill -KILL $$ >/dev/null 2>&1
) &
_rcshutdown_watchdog=$!
fi
# Determine the shutdown order of the /etc/rc.d scripts,
# and perform the operation
#
files=$(rcorder -k shutdown ${rcshutdown_rcorder_flags} /etc/rc.d/*)
for _rc_elem in $(reverse_list $files); do
run_rc_script $_rc_elem stop
done
# Terminate the background watchdog timer (if it is running)
#
if [ -n "$_rcshutdown_watchdog" ]; then
kill -TERM $_rcshutdown_watchdog >/dev/null 2>&1
fi
date
exit 0