diff options
Diffstat (limited to 'debian/util-linux.hwclock.sh.init')
| -rw-r--r-- | debian/util-linux.hwclock.sh.init | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/debian/util-linux.hwclock.sh.init b/debian/util-linux.hwclock.sh.init new file mode 100644 index 0000000..208ca2d --- /dev/null +++ b/debian/util-linux.hwclock.sh.init @@ -0,0 +1,120 @@ +#!/bin/sh +# hwclock.sh Set and adjust the CMOS clock. +# +# Version: @(#)hwclock.sh 2.00 14-Dec-1998 miquels@cistron.nl +# +# Patches: +# 2000-01-30 Henrique M. Holschuh <hmh@rcm.org.br> +# - Minor cosmetic changes in an attempt to help new +# users notice something IS changing their clocks +# during startup/shutdown. +# - Added comments to alert users of hwclock issues +# and discourage tampering without proper doc reading. +# 2012-02-16 Roger Leigh <rleigh@debian.org> +# - Use the UTC/LOCAL setting in /etc/adjtime rather than +# the UTC setting in /etc/default/rcS. Additionally +# source /etc/default/hwclock to permit configuration. + +### BEGIN INIT INFO +# Provides: hwclock +# Required-Start: mountdevsubfs +# Required-Stop: mountdevsubfs +# Should-Stop: umountfs +# Default-Start: S +# X-Start-Before: checkroot +# Default-Stop: 0 6 +# Short-Description: Sync hardware and system clock time. +### END INIT INFO + +# These defaults are user-overridable in /etc/default/hwclock +BADYEAR=no +HWCLOCKACCESS=yes +HWCLOCKPARS= +HCTOSYS_DEVICE=rtc0 + +# We only want to use the system timezone or else we'll get +# potential inconsistency at startup. +unset TZ + +hwclocksh() +{ + [ ! -x /sbin/hwclock ] && return 0 + [ ! -r /etc/default/rcS ] || . /etc/default/rcS + [ ! -r /etc/default/hwclock ] || . /etc/default/hwclock + + . /lib/lsb/init-functions + verbose_log_action_msg() { [ "$VERBOSE" = no ] || log_action_msg "$@"; } + + case "$BADYEAR" in + no|"") BADYEAR="" ;; + yes) BADYEAR="--badyear" ;; + *) log_action_msg "unknown BADYEAR setting: \"$BADYEAR\""; return 1 ;; + esac + + case "$1" in + start) + # If the admin deleted the hwclock config, create a blank + # template with the defaults. + if [ -w /etc ] && [ ! -f /etc/adjtime ] && [ ! -e /etc/adjtime ]; then + printf "0.0 0 0.0\n0\nUTC\n" > /etc/adjtime + fi + + if [ -d /run/udev ] || [ -d /dev/.udev ]; then + return 0 + fi + + if [ "$HWCLOCKACCESS" != no ]; then + log_action_msg "Setting the system clock" + + # Just for reporting. + if sed '3!d' /etc/adjtime | grep -q '^UTC$'; then + UTC="--utc" + else + UTC= + fi + # Copies Hardware Clock time to System Clock using the correct + # timezone for hardware clocks in local time, and sets kernel + # timezone. DO NOT REMOVE. + if /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --hctosys $HWCLOCKPARS $BADYEAR; then + # Announce the local time. + verbose_log_action_msg "System Clock set to: `date $UTC`" + else + log_warning_msg "Unable to set System Clock to: `date $UTC`" + fi + else + verbose_log_action_msg "Not setting System Clock" + fi + ;; + stop|restart|reload|force-reload) + # + # Updates the Hardware Clock with the System Clock time. + # This will *override* any changes made to the Hardware Clock. + # + # WARNING: If you disable this, any changes to the system + # clock will not be carried across reboots. + # + + if [ "$HWCLOCKACCESS" != no ]; then + log_action_msg "Saving the system clock" + if /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --systohc $HWCLOCKPARS $BADYEAR; then + verbose_log_action_msg "Hardware Clock updated to `date`" + fi + else + verbose_log_action_msg "Not saving System Clock" + fi + ;; + show) + if [ "$HWCLOCKACCESS" != no ]; then + /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --show $HWCLOCKPARS $BADYEAR + fi + ;; + *) + log_success_msg "Usage: hwclock.sh {start|stop|reload|force-reload|show}" + log_success_msg " start sets kernel (system) clock from hardware (RTC) clock" + log_success_msg " stop and reload set hardware (RTC) clock from kernel (system) clock" + return 1 + ;; + esac +} + +hwclocksh "$@" |