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#!/bin/sh
#
# timeconfig         Slackware Linux timezone configuration utility.
#
# Author:            Patrick Volkerding <volkerdi@slackware.com>
# Modified by:  David Cantrell <david@slackware.com>, 06-Oct-2000
#
# ChangeLog:
# 2014-10-22:   Updated timezones from tzdata2014i. <pjv>
# 2012-12-12:   Updated timezones from tzdata2012j. <pjv>
# 2008-03-10:   Updated timezones from tzdata2008a. <pjv>
# 2007-12-21:   Updated timezones from tzdata2007j. <pjv>
# 2006-12-03:   Updated timezones from tzdata2006p. <pjv>
# 2006-09-14:   Updated timezones from tzdata2006k. <pjv>
# 2006-08-22:   Updated timezones from tzdata2006j.
# 2006-08-13:   Updated timezones from tzdata2006g.
# 2006-03-13:   Updated timezones from tzdata2006c.
# 19-Feb-2001   Add new timezones from glibc-2.2.2.
# 06-Oct-2000   Fixed a problem with selecting UTC time.  It was writing
#               the hardwareclock file to the root disk and not your dest
#               partition.  Changed the HWCLOCK_CONF variable to be
#               $T_PX/etc/hardwareclock to fix this.  Thanks to David L.
#               Dickman <softbear@optonline.net> for finding this and
#               submitting a patch.
#
# 15-Mar-2000   Added the writeconf function to write out the
#               /etc/hardwareclock file which tells what the hardware clock
#               is set to (UTC or localtime).
#
# 03-Mar-2000   Reorganized script.  Made one timezone set block, added
#               stage that asks the user if the hardware clock is set to
#               UTC.

# setup our temp locations and variables
TMP=/var/log/setup/tmp
if [ -r $TMP/SeTT_PX ]; then
   T_PX="`cat $TMP/SeTT_PX`"
elif [ ! "$!" = "" ]; then
   T_PX=$1
else
   T_PX=/
fi

# the hardware clock configuration file
HWCLOCK_CONF=$T_PX/etc/hardwareclock

# setzone( $TIMEZONE )
#
# This function accepts a time zone as the only parameter and sets it as
# the default system time zone.
setzone()
{
   TZ=$1

   cd $T_PX/etc
   if [ -r $T_PX/usr/share/zoneinfo/$TZ -o \
        -r /var/log/mount/usr/share/zoneinfo/$TZ -o \
        -L $T_PX/usr/share/zoneinfo/$TZ -o \
        -L /var/log/mount/usr/share/zoneinfo/$TZ ]; then
      rm -f localtime-copied-from
      ln -sf /usr/share/zoneinfo/$TZ localtime-copied-from
      rm -f localtime
      cd ..
      chroot . cp etc/localtime-copied-from etc/localtime
   fi
}

# writeconf( $CLOCK_SET_TO )
#
# Writes out $HWCLOCK_CONF that tells rc.S how the hardware clock
# value is stored.
writeconf()
{
   echo "# /etc/hardwareclock" > $HWCLOCK_CONF
   echo "#" >> $HWCLOCK_CONF
   echo "# Tells how the hardware clock time is stored." >> $HWCLOCK_CONF
   echo "# You should run timeconfig to edit this file." >> $HWCLOCK_CONF
   echo >> $HWCLOCK_CONF
   echo $1 >> $HWCLOCK_CONF
}

# ask the user if the hardware clock is set for UTC/GMT
if [ "$COLOR" = "on" -o -r $TMP/SeTcolor -o "$T_PX" = "/" ]; then
   ###
   ### use color menus here
   ###
   dialog --title "HARDWARE CLOCK SET TO UTC?" --menu "Is the hardware clock set \
to Coordinated Universal Time (UTC/GMT)?  If it is, select YES here.  If the \
hardware clock is set to the current local time (this is how most PCs are set \
up), then say NO here.  If you are not sure what this is, you should answer NO \
here." 13 60 2 \
   "NO" "Hardware clock is set to local time" \
   "YES" "Hardware clock is set to UTC" \
   2> $TMP/utc
   if [ $? = 1 -o $? = 255 ]; then
     rm -f $TMP/utc
     exit
   fi
   if [ "`cat $TMP/utc`" = "YES" ]; then
     # yes, the hardware clock is UTC
     writeconf "UTC"
   else # must be NO
     writeconf "localtime"
   fi
   rm -f $TMP/utc
else
   ###
   ### use text prompts
   ###
   echo "Is the hardware clock set to Coordinated Universal Time (UTC/GMT)?"
   echo "If it is, select 'y' here.  If the hardware clock is set to the"
   echo "current local time (this is how most PCs are set up), then say 'n'"
   echo "here.  If you are not sure what this is, you should answer 'n' here."
   echo
   echo -n "Is your hardware clock set to UTC ([y]es, [n]o)? "
   read HEJAZ

   if [ "$HEJAZ" = "y" -o "$HEJAZ" = "Y" -o "$HEJAZ" = "YES" -o "$HEJAZ" = "yes" ]; then
      # yes, the hardware clock is UTC
      writeconf "UTC"
   else
      # default to localtime
      writeconf "localtime"
   fi
fi

# Now set the correct timezone link:
if [ "$COLOR" = "on" -o -r $TMP/SeTcolor -o "$T_PX" = "/" ]; then
   ###
   ### use color menus here
   ###
   dialog --title "TIMEZONE CONFIGURATION" --menu "Please select one of the following timezones for your machine:" 21 50 13 \