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#!/bin/bash
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
source /sbin/functions.sh
esyslog() { :; }
argv0=${0##*/}
usage() {
cat << FOO
usage: ${argv0} -a|add script runlevel1 [runlevel2 ...]
${argv0} -d|del script [runlevel1 ...]
${argv0} -s|show [runlevel1 ...]
examples:
# ${argv0} add net.eth0 default
Adds the net.eth0 script (in /etc/init.d) to the "default" runlevel.
# ${argv0} del sysklogd
Deletes the sysklogd script from all runlevels. The original script
is not deleted, just any symlinks to the script in /etc/runlevels/*.
# ${argv0} del net.eth2 default wumpus
Delete the net.eth2 script from the default and wumpus runlevels.
All other runlevels are unaffected. Again, the net.eth2 script
residing in /etc/init.d is not deleted, just any symlinks in
/etc/runlevels/default and /etc/runlevels/wumpus.
# ${argv0} show
Show all the available scripts and list at which runlevels they
will execute.
FOO
exit ${1:-0}
}
add() {
local ret=0
local x=
local myscript=
if [[ $# -lt 2 ]] ; then
eerror "Usage: ${argv0} add <script> runlevel1 [runlevel2 ...]" 1>&2
exit 1
fi
[[ ${quiet} -gt 0 ]] && exec 2> /dev/null
myscript=$1
if [[ ! -e ${ROOT}/etc/init.d/${myscript} ]] ; then
eerror "${argv0}: '${ROOT}etc/init.d/${myscript}' not found; aborting" 1>&2
exit 1
fi
shift
for x in $* ; do
if [[ ! -e ${ROOT}etc/runlevels/${x} ]] ; then
ewarn "runlevel '${x}' not found; skipping" 1>&2
((++ret))
continue
fi
if [[ -L ${ROOT}etc/runlevels/${x}/${myscript} ]] ; then
ewarn "${myscript} already installed in runlevel '${x}'; skipping" 1>&2
continue
fi
if [[ ! -x ${ROOT}etc/init.d/${myscript} ]] ; then
ewarn "${myscript} not executable; skipping" 1>&2
((++ret))
continue
fi
ln -snf "/etc/init.d/${myscript}" "${ROOT}etc/runlevels/${x}/${myscript}"
if [[ $? -ne 0 ]] ; then
eerror "${argv0}: failed to add '${myscript}' to '${x}'" 1>&2
((++ret))
continue
fi
einfo "${myscript} added to runlevel ${x}"
done
return ${ret}
}
del() {
local x=
local mylevels=
local myscript=
local remlevels=
if [[ $# -lt 1 ]] ; then
eerror "Usage: ${argv0} del <script> [runlevel1 ...]" 1>&2
exit 1
fi
[[ ${quiet} -gt 0 ]] && exec 2> /dev/null
myscript=$1
shift
if [[ $# -eq 0 ]] ; then
mylevels=$(cd "${ROOT}"etc/runlevels/; ls)
else
mylevels="$*"
fi
remlevels=""
for x in ${mylevels} ; do
# -e will return false for broken symlinks so we need the extra -L
[[ ! -L ${ROOT}etc/runlevels/${x}/${myscript} ]] && \
[[ ! -e ${ROOT}etc/runlevels/${x}/${myscript} ]] && continue
remlevels="${remlevels} ${x}"
if [[ ! -L ${ROOT}etc/runlevels/${x}/${myscript} ]] ; then
ewarn "Removing invalid init.d script: '${ROOT}etc/runlevels/${x}/${myscript}'" 1>&2
fi
rm -f "${ROOT}etc/runlevels/${x}/${myscript}"
((ret+=$?))
done
if [[ -z ${remlevels} ]] ; then
ewarn "'${myscript}' not found in any of the specified runlevels" 1>&2
elif [[ ${quiet} -eq 0 ]] ; then
einfo "'${myscript}' removed from the following runlevels:${remlevels}"
fi
return ${ret}
}
show() {
local x=
local y=
local mylevels=
local myscripts=
shopt -s nullglob
if [[ $# -eq 0 ]] ; then
mylevels=$(cd "${ROOT}"etc/runlevels/; ls)
else
mylevels="$*"
# verify runlevels provided by user
for y in ${mylevels} ; do
[[ ! -d ${ROOT}etc/runlevels/${y} ]] && ewarn "Runlevel doesn't exist: ${y}"
done
fi
myscripts=$(cd "${ROOT}"etc/init.d; ls)
# Sanity check to make sure everything is kosher ...
for x in $(find "${ROOT}"etc/runlevels -xtype l) ; do
ewarn "Broken runlevel entry: ${x}"
done
for x in $(find "${ROOT}"etc/runlevels ! -type l -a ! -type d) ; do
ewarn "Invalid runlevel entry: ${x}"
done
for x in ${myscripts} ; do
# skip *.sh scripts as they are helpers, not init.d scripts
[[ ${x} == *.sh ]] && continue
# unless we are running in verbose mode, don't display scripts
# that aren't in any runlevels that we are examining
if [[ ${verbose} -eq 0 ]] ; then
local found_it=0
for y in ${mylevels} ; do
if [[ -L ${ROOT}etc/runlevels/${y}/${x} ]] ; then
found_it=1
break
fi
done
[[ ${found_it} -eq 0 ]] && continue
fi
# ok, let's show this script already !
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 ""
done
}
check_is_root() {
if [[ ${EUID} -ne 0 ]] ; then
eerror "${argv0}: must be root to complete this operation" 1>&2
exit 1
fi
}
export ROOT=${ROOT%/}/
[[ ${ROOT} != "/" ]] && einfo "Working with files in root ${ROOT} ..."
verbose=0
quiet=0
action=""
opts=""
check_root=0
[[ ${RC_VERBOSE} == "yes" ]] && ((++verbose))
while [[ -n $* ]] ; do
case "$1" in
add|-a)
check_root=1
action="add"
;;
del|delete|-d)
check_root=1
action="del"
;;
show|-s)
action="show"
;;
help|-h|--help)
usage 0
;;
verbose|-v|--verbose)
((++verbose))
;;
quiet|-q|--quiet)
((++quiet))
;;
-*)
echo -e "${argv0}: Unknown option $1\n" 1>&2
usage 1
;;
*)
opts="${opts} $1"
;;
esac
shift
done
if [[ -z ${action} ]] ; then
eerror "${argv0}: gimme something to do!" 1>&2
exit 1
fi
[[ ${check_root} -eq 1 ]] && check_is_root
${action} ${opts}
# vim:ts=4
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