package/base-files/files/etc/init.d/sysfixtime

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2013-2014 OpenWrt.org
   3
   4 START=00
   5 STOP=90
   6
   7 RTC_DEV=/dev/rtc0
   8 HWCLOCK=/sbin/hwclock
   9
  10 boot() {
  11         start && exit 0
  12
  13         local maxtime="$(maxtime)"
  14         local curtime="$(date +%s)"
  15         [ $curtime -lt $maxtime ] && date -s @$maxtime
  16 }
  17
  18 start() {
  19         [ -e "$RTC_DEV" ] && [ -e "$HWCLOCK" ] && $HWCLOCK -s -f $RTC_DEV
  20 }
  21
  22 stop() {
  23         [ -e "$RTC_DEV" ] && [ -e "$HWCLOCK" ] && $HWCLOCK -w -f $RTC_DEV && \
  24                 logger -t sysfixtime "saved '$(date)' to $RTC_DEV"
  25 }
  26
  27 maxtime() {
  28         local file newest
  29
  30         for file in $( find /etc -type f ) ; do
  31                 [ -z "$newest" -o "$newest" -ot "$file" ] && newest=$file
  32         done
  33         [ "$newest" ] && date -r "$newest" +%s
  34 }