HardenedBSD/etc/rc.shutdown

#!/bin/sh
#
# Copyright (c) 1997  Ollivier Robert
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#

# Site-specific closing actions for daemons run by init on shutdown,
# or before going single-user from multi-user.
# Output and errors are directed to console by init, and the
# console is the controlling terminal.

stty status '^T'

# Set shell to ignore SIGINT (2), but not children;
# shell catches SIGQUIT (3) and returns to single user after fsck.
trap : 2
trap : 3	# shouldn't be needed

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

# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/rc.conf ]; then
	. /etc/defaults/rc.conf
	source_rc_confs
elif [ -r /etc/rc.conf ]; then
	. /etc/rc.conf
fi

# Write some entropy so the rebooting /dev/random can reseed
#
case ${entropy_file} in
[Nn][Oo] | '')
	;;
*)
	echo -n 'Writing entropy file:'
	rm -f ${entropy_file}
	oumask=`umask`
	umask 077
	if touch ${entropy_file} ; then
		entropy_file_confirmed="${entropy_file}"
	else
		# Try this as a reasonable alternative for read-only
		# roots, diskless workstations, etc.
		rm -f /var/db/entropy
		if touch /var/db/entropy ; then
			entropy_file_confirmed=/var/db/entropy
		fi
	fi
	case ${entropy_file_confirmed} in
	'')
		echo ' ERROR - entropy file write failed'
		;;
	*)
		dd if=/dev/random of=${entropy_file_confirmed} \
		   bs=4096 count=1 2> /dev/null
		echo '.'
		;;
	esac
	umask ${oumask}
	;;
esac

# Check if /var/db/mounttab is clean.
case $1 in
reboot)
	if [ -f /var/db/mounttab ]; then
		rpc.umntall
	fi
	;;
esac

echo -n 'Shutting down daemon processes:'

# for each valid dir in $local_startup, search for init scripts matching *.sh
case ${local_startup} in
[Nn][Oo] | '')
	;;
*)
	for dir in ${local_startup}; do
		if [ -d "${dir}" ]; then
			for script in ${dir}/*.sh; do
				if [ -x "${script}" ]; then
					(set -T
					 trap 'exit 1' 2
					 ${script} stop)
				fi
			done
		fi
	done
	echo '.'
	;;
esac

# Insert other shutdown procedures here

echo '.'
exit 0