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#!/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 show"
description="Sets the local clock to UTC or Local Time."
description_save="Saves the current time in the BIOS."
description_show="Displays the current time in the BIOS."
clock_adjfile=${clock_adjfile:-${CLOCK_ADJFILE}}
clock_args=${clock_args:-${CLOCK_OPTS}}
clock_systohc=${clock_systohc:-${CLOCK_SYSTOHC}}
clock=${clock:-${CLOCK:-UTC}}
if [ "${clock}" = "UTC" ]; then
utc="UTC"
utc_cmd="--utc"
else
utc="Local Time"
utc_cmd="--localtime"
fi
depend() {
if yesno ${clock_adjfile}; then
use checkroot
else
before *
fi
}
setupopts() {
case "${RC_SYS}" in
UML|VPS|XENU)
utc="${RC_SYS}"
;;
*)
case "$(uname -m)" in
s390*)
utc="s390"
;;
*)
if [ -e /proc/devices ] && grep -q " cobd$" /proc/devices; then
utc="coLinux"
fi
;;
esac
;;
esac
case "${utc}" in
UTC|Local" "Time);;
*) unset utc_cmd;;
esac
}
start() {
local retval=0 errstr=""
setupopts
ebegin "Setting system clock using the hardware clock [${utc}]"
if [ -n "${utc_cmd}" ]; then
if [ -e /proc/modules -a ! -e /dev/rtc ]; then
modprobe -q rtc || modprobe -q genrtc
fi
# Since hwclock always exit's with a 0, need to check its output.
if [ -e /etc/adjtime ] && yesno ${clock_adjfile}; then
errstr="$(hwclock --adjust ${utc_cmd} 2>&1 >/dev/null)"
fi
# If setting UTC, don't bother to run hwclock when first booting
# as that's the default
if [ "${PREVLEVEL}" != "N" -o "${utc_cmd}" != "--utc" -o -n "${clock_args}" ]; then
errstr="${errstr}$(hwclock --hctosys ${utc_cmd} ${clock_args} 2>&1 >/dev/null)"
fi
fi
if [ -n "${errstr}" ]; then
ewarn "${errstr}"
retval=1
fi
errstr="Failed to set clock"
eend ${retval} "${errstr}" "You will need to set the clock yourself"
return 0
}
stop() {
# Don't tweak the hardware clock on LiveCD halt.
[ -n "${CDBOOT}" ] && return 0
yesno ${clock_systohc} || return 0
local retval=0 errstr=""
setupopts
ebegin "Setting hardware clock using the system clock" "[${utc}]"
if [ -n "${utc_cmd}" ]; then
if ! yesno "${clock_adjfile}"; then
# Some implementations don't handle adjustments
if LC_ALL=C hwclock --help | grep -q "\-\-noadjfile"; then
utc_cmd="${utc_cmd} --noadjfile"
fi
fi
errstr="$(LC_ALL=C hwclock --systohc ${utc_cmd} ${clock_args} 2>&1 >/dev/null)"
fi
if [ -n "${errstr}" ]; then
ewarn "${errstr}"
retval=1
fi
errstr="Failed to sync clocks"
eend ${retval} "${errstr}"
}
save() {
clock_systohc="yes"
stop
}
show() {
setupopts
hwclock --show "${utc_cmd}" ${clock_args}
}
# vim: set ts=4 :
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