#!/sbin/runscript
# Copyright 2007 Roy Marples
# 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.

extra_commands="save"

description="Sets the local clock to UTC or Local Time." 
description_save="Saves the current time in the BIOS."

clock=${clock:-${CLOCK:-UTC}}
if [ "${clock}" = "UTC" ]; then
	utc="UTC"
else
	utc="Local Time"
fi

depend() {
	# BSD adjkerntz needs to be able to write to /etc
	if [ "${clock}" = "UTC" -a -e /etc/wall_cmos_clock ] ||
	   [ "${clock}" != "UTC" -a ! -e /etc/wall_cmos_clock ]; then
		need checkroot
	fi
}

start() {
	ebegin "Starting the System Clock Adjuster [${utc}]"
	if [ "${clock}" != "UTC" ]; then
		echo >/etc/wall_cmos_clock
		start-stop-daemon --start --exec /sbin/adjkerntz -- -i
	else
		rm -f /etc/wall_cmos_clock
		/sbin/adjkerntz -i
	fi
	eend $?
}

save() {
	ebegin "Setting hardware clock using the system clock [${utc}]"
	adjkerntz -a
	eend $?
}

stop() {
    # Don't tweak the hardware clock on LiveCD halt.
	if yesno "${clock_systohc:-${CLOCK_SYSTOHC}}"; then
	   [ -z "${CDBOOT}" ] && save
	fi

	ebegin "Stopping the System Clock Adjuster"
	if start-stop-daemon --test --quiet --stop --exec /sbin/adjkerntz; then
		start-stop-daemon --stop --exec /sbin/adjkerntz
		eend $?
	else
		eend 0
	fi
}

# vim: set ts=4 :