#! /bin/bash

# Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
#  
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#  
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

## HACK: this script is full of races...

vdir=$1/vdir
. "$2"

function relink
{
    test ! -e "$2" -o -L "$2" || mv -f "$2"{,.orig}
    ln -sf "$1" "$2"
}

## Usage: subst <file> <regexp>
function subst
{
    tmp=$(mktemp /tmp/initpost-subst.XXXXXX)

    case "$1" in
	(/*|./*)	cat "$1";;
	(*)		$_CHROOT_SH cat "$1";;
    esac              | sed -e "$2"          >$tmp
    cmp -s $tmp "$1" || $_CHROOT_SH truncate "$1" <$tmp

    rm -f $tmp
}

pushd "$vdir"/etc/init.d &>/dev/null ||
    pushd "$vdir"/etc/rc.d/init.d &>/dev/null || exit 1

    for i in *; do
	test -e "$i" || continue
	case "$i" in
	    functions|halt|killall|single) ;;
	    syslog) ;;
	    *)
		$_VSERVER ----insecure "$1" chkconfig "$i" off
		;;
	esac
    done

    relink /bin/true halt
popd >/dev/null

pushd "$vdir"/sbin &>/dev/null
    relink /bin/true new-kernel-pkg
popd >/dev/null

pushd "$vdir"/usr/bin &>/dev/null
    relink /bin/true rhgb-client
popd >/dev/null

pushd "$vdir" &>/dev/null
    echo 'NETWORKING=yes' | $_CHROOT_SH append /etc/sysconfig/network
popd >/dev/null

pushd "$vdir" &>/dev/null
    : | $_CHROOT_SH truncate /etc/sysctl.conf
    echo "none    /       none    defaults" | $_CHROOT_SH truncate /etc/fstab
    cat "$__DISTRIBDIR"/redhat/rc.sysinit   | $_CHROOT_SH truncate /etc/rc.d/rc.sysinit.vserver
    # TODO: remove race/symlink-attack
    chmod +x etc/rc.d/rc.sysinit.vserver
    subst etc/inittab 's!^\([^#].*:respawn:.* tty\)!#\1!;
		       s!si::sysinit:/etc/rc.d/rc.sysinit!si::sysinit:/etc/rc.d/rc.sysinit.vserver!'
popd >/dev/null