shorewall_code/Shorewall-common/fallback.sh

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#!/bin/sh
#
# Script to back out the installation of Shoreline Firewall and to restore the previous version of
# the program
#
# This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
#
# (c) 2001,2002,2003,2004,2005 - Tom Eastep (teastep@shorewall.net)
#
# Shorewall documentation is available at http://shorewall.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of Version 2 of the GNU General Public License
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA
#
# Usage:
#
# You may only use this script to back out the installation of the version
# shown below. Simply run this script to revert to your prior version of
# Shoreline Firewall.
VERSION=4.0.0-Beta4
usage() # $1 = exit status
{
echo "usage: $(basename $0)"
exit $1
}
restore_directory() # $1 = directory to restore
{
if [ -d ${1}-${VERSION}.bkout ]; then
if mv -f $1 ${1}-${VERSION} && mv ${1}-${VERSION}.bkout $1; then
echo
echo "$1 restored"
rm -rf ${1}-${VERSION}
else
echo "ERROR: Could not restore $1"
exit 1
fi
fi
}
restore_file() # $1 = file to restore, $2 = (Optional) Directory to restore from
{
if [ -n "$2" ]; then
local file=$(basename $1)
if [ -f $2/$file ]; then
if mv -f $2/$file $1 ; then
echo
echo "$1 restored"
return
fi
echo "ERROR: Could not restore $1"
exit 1
fi
fi
if [ -f ${1}-${VERSION}.bkout -o -L ${1}-${VERSION}.bkout ]; then
if (mv -f ${1}-${VERSION}.bkout $1); then
echo
echo "$1 restored"
else
echo "ERROR: Could not restore $1"
exit 1
fi
fi
}
if [ ! -f /usr/share/shorewall-${VERSION}.bkout/version ]; then
echo "Shorewall Version $VERSION is not installed"
exit 1
fi
echo "Backing Out Installation of Shorewall $VERSION"
if [ -L /usr/share/shorewall/init ]; then
FIREWALL=$(ls -l /usr/share/shorewall/init | sed 's/^.*> //')
restore_file $FIREWALL /usr/share/shorewall-${VERSION}.bkout
else
restore_file /etc/init.d/shorewall /usr/share/shorewall-${VERSION}.bkout
fi
restore_file /sbin/shorewall /var/lib/shorewall-${VERSION}.bkout
restore_directory /etc/shorewall
restore_directory /usr/share/shorewall
restore_directory /var/lib/shorewall
echo "Shorewall Restored to Version $(cat /usr/share/shorewall/version)"