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|
#!@PREFIX@/sbin/runscript
# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# 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}}
: ${clock_args:=${CLOCK_OPTS}}
: ${clock_systohc:=${CLOCK_SYSTOHC}}
: ${clock:=${CLOCK:-UTC}}
if [ "$clock" = "UTC" ]; then
utc="UTC"
utc_cmd="--utc"
else
utc="Local Time"
utc_cmd="--localtime"
fi
depend()
{
provide clock
if yesno $clock_adjfile; then
use root
else
before *
fi
keyword -openvz -prefix -uml -vserver -xenu -lxc
}
setupopts()
{
case "$(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 ]; then
local rtc=
for rtc in /dev/rtc /dev/rtc[0-9]*; do
[ -e "$rtc" ] && break
done
if [ ! -e "${rtc}" ]; then
modprobe -q rtc-cmos || modprobe -q rtc || modprobe -q genrtc
fi
fi
if [ -e /etc/adjtime ] && yesno $clock_adjfile; then
_hwclock --adjust $utc_cmd
: $(( 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
if yesno $clock_hctosys; then
_hwclock --hctosys $utc_cmd $clock_args
else
_hwclock --systz $utc_cmd $clock_args
fi
: $(( 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 $clock_adjfile; then
# Some implementations don't handle adjustments
if LC_ALL=C hwclock --help 2>&1 | grep -q "\-\-noadjfile"; then
utc_cmd="$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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