#!/bin/sh
#
#
# 2003/04/09
# - changed new_* paths from /tmp to /mnt/RESTORING/etc
#
#
# created in mid-2002?
######################################################################



QuitIfNotFound() {
    if [ ! -f "$1" ] ; then
	LogIt "(stablilo-me) Where's $1? I cannot continue." 1
	exit 1
    fi
}




FindLiloDir() {
    list=`find / | grep -name lilo.conf`
}



LocateOldFstab() {
    old_fstab=""
    old_liloconf=""
    if [ -f "/mnt/RESTORING/etc/fstab" ] ; then
        LogIt "No need for fstab search." 2
#        fstab_list=/mnt/RESTORING/etc/fstab
	old_fstab=/mnt/RESTORING/etc/fstab
	old_liloconf=/mnt/RESTORING/etc/lilo.conf
	return 0
    elif [ -f "/mnt/cdrom/archives/CUCKOO" ] ; then
        LogIt "Because I'm cuckoo, I'll stop searching." 2
        return 1
    else
        LogIt "Looking for fstab. Please wait." 2
        fstab_list=`find /mnt/RESTORING -name fstab 2> /dev/null`
    fi
    where_they_live=""
    for curr_fstab in $fstab_list ; do
	curr_dir=`echo $curr_fstab | gawk '{i=index($0,"/fstab");print substr($0,0,i-1);}'`
	resA=$?
	curr_inetd=`find $curr_dir -name inetd.conf | grep -v "linuxconf"`
	resB=$?
	if [ "$resA" -eq "0" ] ; then
	    if [ "$where_they_live" != "" ] ; then
		LogIt "Two directories found! One is $where_they_live, the other $curr_dir" 1
		LogIt "I don't know which to choose. I'll abort the search." 1
		return 1
	    fi
	    where_they_live=$curr_dir
	fi
    done
    if [ "$where_they_live" = "" ] ; then
	LogIt "Cannot find any folder which holds fstab _and_ inetd.conf" 1
	return 1
    fi
    old_liloconf=$where_they_live/lilo.conf
    old_fstab=$where_they_live/fstab
    LogIt "LILO and fstab found." 2
    return 0
}



MakeBackups() {
    LogIt "Backing up original files before modifying them..." 2
    for i in $old_liloconf $old_fstab ; do
	LogIt "Backing up $i"
        [ -f "$i" ] && cp $i $i.prehack -f
    done
}


RestoreBackups() {
    LogIt "Restoring original versions of modified files..." 2
    cp -f $old_liloconf /tmp/lilo.conf.ugly
    cp -f $old_fstab /tmp/fstab.ugly
    for i in $old_liloconf $old_fstab ; do
	LogIt "Restoring $i"
	[ -f "$i.prehack" ] && cp $i.prehack $i -f
    done
}


WhatIsFirstDriveCalled() {
    cut -d' ' -f1 /tmp/mountlist.txt \
| sed s/[0-9]// | sed s/[0-9]// \
| sort -u | head -n 1
}


# --------------------------------- main -------------------------------

LogIt "stablilo-me --- starting"
LocateOldFstab
old_mountlist=/tmp/mountlist.original
new_mountlist=/tmp/mountlist.txt
QuitIfNotFound $old_mountlist
QuitIfNotFound $new_mountlist
QuitIfNotFound $old_fstab
QuitIfNotFound $old_liloconf
LogIt "OK so far: I've found all the files I need." 2

MakeBackups

new_fstab=/mnt/RESTORING/etc/fstab.NEW
[ ! -e "$new_fstab" ] && new_fstab=/mnt/RESTORING/etc/fstab
new_liloconf=/mnt/RESTORING/etc/lilo.conf.NEW
[ ! -e "$new_liloconf" ] && new_liloconf=/mnt/RESTORING/etc/lilo.conf

LogIt "Modifying fstab..." 2
outval=0
hack-fstab $old_mountlist $old_fstab $new_mountlist $new_fstab
res=$?
if [ "$res" -ne "0" ] ; then
    echo "Warning - hack-fstab failed"
    outval=$(($outval+$res))
fi
   
LogIt "Modifying lilo.conf. Please wait..." 2
hack-lilo $old_mountlist $old_fstab $old_liloconf $new_mountlist $new_fstab $new_liloconf
res=$?
outval=$(($outval+$res))
if [ "$outval" -ne "0" ] ; then
    LogIt "Fstab and/or lilo modifications failed" 3
#    RestoreBackups
else
    LogIt "Modifications succeeded." 2
    LogIt "Copying over $old_fstab" 2
    cp -f $new_fstab $old_fstab
    outval=$(($outval+$?))
    LogIt "Copying over $old_liloconf" 2
    cp -f $new_liloconf $old_liloconf
    outval=$(($outval+$?))
    if [ "$outval" -ne "0" ] ; then
	LogIt "Modifications (copying) failed. Restoring from backups." 3
	RestoreBackups
    else
	LogIt "Fstab and lilo files modified ok." 2
    fi
    cd $where_they_live
    cd ..
    LogIt "Running lilo from `pwd`" 2
    cd /mnt/RESTORING
    lilo -r `pwd` 2> /tmp/lilo.log.mondo
    if [ "$?" -ne "0" ] ; then
	lilo -L -r `pwd` 2> /tmp/lilo.log.mondo
    fi
    if [ "$?" -ne "0" ] ; then
	LogIt "LILO failed." 3
	cat /tmp/lilo.log.mondo
        outval=$(($outval+1))
    else
        LogIt "LILO ran ok." 2
    fi
fi

if [ "$outval" -ne "0" ] ; then
    LogIt "Error(s) occurred during lilo/fstab processing." 3
    LogIt "Restoring originals." 3
    RestoreBackups
else
    LogIt "/etc/fstab and /etc/lilo.conf were modified ok. LILO ran ok." 3
fi
LogIt "stablilo-me --- leaving"
exit $outval