#!/bin/sh

# diff OTA patch script

_FUNCTIONS=/etc/rc.d/functions
[ -f ${_FUNCTIONS} ] && . ${_FUNCTIONS}


MSG_SLLVL_D="debug"
MSG_SLLVL_I="info"
MSG_SLLVL_W="warn"
MSG_SLLVL_E="err"
MSG_SLLVL_C="crit"
MSG_SLNUM_D=0
MSG_SLNUM_I=1
MSG_SLNUM_W=2
MSG_SLNUM_E=3
MSG_SLNUM_C=4
MSG_CUR_LVL=/var/local/system/syslog_level

logmsg()
{
    local _NVPAIRS
    local _FREETEXT
    local _MSG_SLLVL
    local _MSG_SLNUM

    _MSG_LEVEL=$1
    _MSG_COMP=$2

    { [ $# -ge 4 ] && _NVPAIRS=$3 && shift ; }

    _FREETEXT=$3

    eval _MSG_SLLVL=\${MSG_SLLVL_$_MSG_LEVEL}
    eval _MSG_SLNUM=\${MSG_SLNUM_$_MSG_LEVEL}

    local _CURLVL

    { [ -f $MSG_CUR_LVL ] && _CURLVL=`cat $MSG_CUR_LVL` ; } || _CURLVL=1

    if [ $_MSG_SLNUM -ge $_CURLVL ]; then
        /usr/bin/logger -p local4.$_MSG_SLLVL -t "ota_install" "$_MSG_LEVEL def:$_MSG_COMP:$_NVPAIRS:$_FREETEXT"
    fi

    [ "$_MSG_LEVEL" != "D" ] && echo "ota_install: $_MSG_LEVEL def:$_MSG_COMP:$_NVPAIRS:$_FREETEXT"
}

if [ -z "${_PERCENT_COMPLETE}" ]; then
    export _PERCENT_COMPLETE=0
fi

update_percent_complete()
{
    _PERCENT_COMPLETE=$((${_PERCENT_COMPLETE} + $1))
    update_progressbar ${_PERCENT_COMPLETE}
}

# Hack specific config (name and when to start/stop)
HACKNAME="linkjail"
SLEVEL="64"
KLEVEL="09"

update_percent_complete 2

# Remove our custom key
logmsg "I" "update" "removing custom pubkey"
rm -f /etc/uks/pubhackkey01.pem

update_progressbar 16

# Switch back to default keys
if grep "^fsp /etc/uks/pubprodkey01.pem" /proc/mounts > /dev/null 2>&1 ; then
    logmsg "I" "update" "switching back to default keys"
    umount -l /etc/uks/pubprodkey01.pem
fi

update_progressbar 32

# Boot symlink
logmsg "I" "update" "removing boot symlink"
[ -h /etc/rc5.d/S${SLEVEL}${HACKNAME} ] && rm -f /etc/rc5.d/S${SLEVEL}${HACKNAME}

update_progressbar 48

# Updater symlink
logmsg "I" "update" "removing update symlink"
[ -h /etc/rc3.d/K${KLEVEL}${HACKNAME} ] && rm -f /etc/rc3.d/K${KLEVEL}${HACKNAME}

update_progressbar 64

# Remove our hack's init script
logmsg "I" "update" "removing init script"
[ -f /etc/init.d/${HACKNAME} ] && rm -f /etc/init.d/${HACKNAME}

update_progressbar 80

# Remove custom directory in userstore?
logmsg "I" "update" "removing custom directory (only if /mnt/us/${HACKNAME}/uninstall exists)"
[ -d /mnt/us/${HACKNAME} -a -f /mnt/us/${HACKNAME}/uninstall ] && rm -rf /mnt/us/${HACKNAME}

update_progressbar 96

logmsg "I" "update" "done"

update_progressbar 100

return 0