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#!/sbin/runscript
# Copyright 2007-2008 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.
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 ${clock_adjfile}; then
use root
else
before *
fi
keyword nouml novps noxenu
}
setupopts()
{
case "$(uname -m)" in
s390*)
utc="s390"
;;
*)
if [ -e /proc/devices ] && \
grep -q " cobd$" /proc/devices
then
utc="coLinux"
fi
;;
esac
case "${utc}" in
UTC|Local" "Time);;
*) unset utc_cmd;;
esac
}
# hwclock doesn't always return non zero on error
_hwclock()
{
local err="$(hwclock "$@" 2>&1 >/dev/null)"
[ -z "${err}" ] && return 0
echo "${err}" >&2
return 1
}
start()
{
local retval=0 errstr=""
setupopts
if [ -z "${utc_cmd}" ]; then
ewarn "Not setting clock for ${utc} system"
return 0
fi
ebegin "Setting system clock using the hardware clock [${utc}]"
if [ -e /proc/modules -a ! -e /dev/rtc ]; then
modprobe -q rtc || modprobe -q genrtc
fi
if [ -e /etc/adjtime ] && yesno ${clock_adjfile}; then
_hwclock --adjust ${utc_cmd}
retval=$((${retval} + $?))
fi
# If setting UTC, don't bother to run hwclock when first booting
# as that's the default
if [ "${PREVLEVEL}" != "N" -o \
"${utc_cmd}" != "--utc" -o \
-n "${clock_args}" ];
then
_hwclock --hctosys ${utc_cmd} ${clock_args}
retval=$((${retval} + $?))
fi
eend ${retval} "Failed to set the system clock"
return 0
}
stop()
{
# Don't tweak the hardware clock on LiveCD halt.
[ -n "${CDBOOT}" ] && return 0
yesno ${clock_systohc} || return 0
local retval=0 errstr=""
setupopts
[ -z "${utc_cmd}" ] && return 0
ebegin "Setting hardware clock using the system clock" "[${utc}]"
if ! yesno "${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
_hwclock --systohc ${utc_cmd} ${clock_args}
retval=$?
eend ${retval} "Failed to sync clocks"
}
save()
{
clock_systohc="yes"
stop
}
show()
{
setupopts
hwclock --show "${utc_cmd}" ${clock_args}
}
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