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#!/bin/bash
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
source /sbin/functions.sh
usage() {
cat << FOO
usage: rc-update -a|add script runlevel2 [runlevel2 ...]
rc-update -d|del script [runlevel1 ...]
rc-update -s|show [runlevel1 ...]
examples:
# rc-update add sysklogd default
Adds the sysklogd script (in /etc/init.d) to the "default" runlevel.
# rc-update del sysklogd
Deletes the sysklogd script from all runlevels. The original script
is not deleted, just any symlinks to the script in /etc/runlevels/*.
# rc-update del sysklogd default wumpus
Delete the sysklogd script from the default and wumpus runlevels.
All other runlevels are unaffected. Again, the sysklogd script
residing in /etc/init.d is not deleted, just any symlinks in
/etc/runlevels/default and /etc/runlevels/wumpus.
# rc-update show
Show all the available scripts and list at which runlevels they
will execute.
FOO
exit 1
}
add() {
local x=
local myscript=
if [[ $# -lt 3 ]] ; then
eerror "$0: at least two arguments expected after \"$1\"."
exit 1
fi
shift
myscript="$1"
if [[ ! -e ${ROOT}/etc/init.d/${myscript} ]] ; then
eerror "$0: '${ROOT}/etc/init.d/${myscript}' not found; aborting."
exit 1
fi
shift
for x in $* ; do
if [[ ! -e ${ROOT}/etc/runlevels/${x} ]] ; then
ewarn "runlevel ${x} not found; skipping"
continue
fi
if [[ -L ${ROOT}/etc/runlevels/${x}/${myscript} ]] ; then
ewarn "${myscript} already installed in runlevel ${x}; skipping"
continue
fi
if [[ ! -x ${ROOT}/etc/init.d/${myscript} ]] ; then
ewarn "${myscript} not executable; skipping"
continue
fi
ln -snf "/etc/init.d/${myscript}" "${ROOT}/etc/runlevels/${x}/${myscript}"
if [[ $? -ne 0 ]] ; then
eerror "$0: failed to add ${myscript} to ${x}."
exit 1
fi
einfo "${myscript} added to runlevel ${x}"
done
}
del() {
local x=
local mylevels=
local myscript=
local remlevels=
if [[ $# -lt 2 ]] ; then
eerror "$0: at least one argument expected after \"$1\"."
exit 1
fi
shift
myscript=$1
shift
if [[ $# -eq 0 ]] ; then
mylevels=$(cd "${ROOT}"/etc/runlevels/; ls)
else
mylevels="$*"
fi
remlevels=""
for x in ${mylevels} ; do
if [[ -L ${ROOT}/etc/runlevels/${x}/${myscript} ]] ; then
rm -f "${ROOT}/etc/runlevels/${x}/${myscript}"
remlevels="${remlevels} ${x}"
fi
done
if [[ -z ${remlevels} ]] ; then
einfo "${myscript} not found in any of the specified runlevels."
else
einfo "${myscript} removed from the following runlevels:${remlevels}"
fi
}
show() {
local x=
local y=
local mylevels=
local myscripts=
shift
if [[ $# -eq 0 ]] ; then
mylevels=$(cd "${ROOT}"/etc/runlevels/; ls)
else
mylevels="$*"
fi
myscripts=$(cd "${ROOT}"/etc/init.d; ls)
for x in ${myscripts} ; do
if [[ ${x%%.sh} = "${x}" ]] ; then
printf "%20s | " ${x:0:19}
for y in ${mylevels} ; do
if [[ -L ${ROOT}/etc/runlevels/${y}/${x} ]] ; then
echo -n "${y} "
else
printf "%${#y}s " " "
fi
done
echo ""
fi
done
}
check_is_root() {
if [[ ${EUID} -ne 0 ]] ; then
eerror "$0: must be root."
exit 1
fi
}
if [[ $# -lt 1 ]] ; then
usage
exit 1
fi
if [[ -n ${ROOT} ]] ; then
[[ ${ROOT:0-1} == "/" ]] && export ROOT=${ROOT:0:${#ROOT}-1}
einfo "Working with files in root ${ROOT} ..."
fi
case "$1" in
add|-a)
check_is_root
add "$@"
;;
del|delete|-d)
check_is_root
del "$@"
;;
show|-s)
show "$@"
;;
*)
usage
exit 1
;;
esac
# vim:ts=4
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