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|
#! /bin/sh
# hplip initscript for the HP Linux Printing and Imaging System
# Copyright (c) 2004-2006 by Henrique de Moraes Holschuh <hmh@debian.org>
# Distributed under the GPLv2 or newer
#
# $Id: hplip.init,v 1.15 2006/08/07 20:47:11 hmh Exp $
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DESC="HP Linux Printing and Imaging System"
# For manual setuid/gid
SUID_USER=hplip
SGID_GROUP=lp
DAEMON1=/usr/sbin/hpiod
NAME1=hpiod
PROCNAME1=$NAME1
PIDFILE1=/var/run/hplip/hpiod.pid
DAEMON2=/usr/sbin/hpssd
NAME2=hpssd
PROCNAME2=python
PIDFILE2=/var/run/hplip/hpssd.pid
FILES2="/var/run/hplip/hpssd.pid /var/run/hplip/hpssd.port"
HPIODOPTIONS=
HPSSDOPTIONS=
RUN_HPIOD_AS_ROOT=yes
[ -r /etc/default/hplip ] && . /etc/default/hplip
case "$RUN_HPLIP" in
[nN]*) exit 0
esac
test -x ${DAEMON1} || exit 0
. /lib/lsb/init-functions
set -e
###
### dpkg-statoverride support
###
createdir() {
# $1 = user
# $2 = group
# $3 = permissions (octal)
# $4 = path to directory
[ -d "$4" ] || mkdir -p -m "$3" "$4"
chown -R -H --preserve-root "$1:$2" "$4"
chmod "$3" "$4"
}
fixdirs() {
dir=$(dpkg-statoverride --list /var/run/hplip) || {
echo "You are missing a dpkg-statoverride on /var/run/hplip. Fix it, otherwise you risk silent breakage on upgrades." >&2
exit 1
}
[ -z "$dir" ] || createdir $dir
# clear exit status
:
}
###
DIDSOMETHING=0
reload_cups() {
if [ ${DIDSOMETHING} -ne 0 ] ; then
# Tell cupsys that we (may) have a new ative backend
# be silent about it to avoid unneeded hassles duing
# shutdowns -- it is not like we care if this suceeds or
# not...
invoke-rc.d --quiet cupsys reload >/dev/null 2>&1 || true
fi
return 0
}
start_daemon() {
DAEMON="$1"
PIDFILE="$2"
NAME="$3"
PROCNAME="$4"
SSDOPT="$5"
DAEMONOPT="$6"
START="--start --quiet --pidfile ${PIDFILE} --startas ${DAEMON} --name ${PROCNAME} ${SSDOPT}"
[ -n "${DAEMONOPT}" ] && START="${START} -- ${DAEMONOPT}"
if start-stop-daemon ${START} >/dev/null 2>&1 ; then
#success
DIDSOMETHING=1
else
if start-stop-daemon --test ${START} >/dev/null 2>&1; then
#failed
return 1
else
#already running
return 0
fi
fi
return 0
}
stop_daemon() {
DAEMON="$1"
PIDFILE="$2"
NAME="$3"
PROCNAME="$4"
# yes, it is --start. go read the manpage
STOP="--start --quiet --pidfile ${PIDFILE} --startas ${DAEMON} --name ${PROCNAME}"
if start-stop-daemon --stop --quiet --pidfile ${PIDFILE} \
--retry 10 --name ${PROCNAME} \
>/dev/null 2>&1 ; then
# success
DIDSOMETHING=1
# FIXME: change hpiod so that this is not necessary
sleep 2
else
if start-stop-daemon --test ${STOP} >/dev/null 2>&1; then
# already stopped
return 0
else
# failed, still running
return 1
fi
fi
return 0
}
do_start () {
log_daemon_msg "Starting ${DESC}"
fixdirs
case "$RUN_HPIOD_AS_ROOT" in
[nN]*) HPIOD_SSDOPT="--chuid ${SUID_USER} --group ${SGID_GROUP}";;
*) HPIOD_SSDOPT=""
esac
log_progress_msg "${NAME1}"
if start_daemon "${DAEMON1}" "${PIDFILE1}" "${NAME1}" \
"${PROCNAME1}" "${HPIOD_SSDOPT}" \
"${HPIODOPTIONS}" && \
{
log_progress_msg "${NAME2}"
for i in ${FILES2} ; do
[ -f "$i" ] && chown "${SUID_USER}:${SGID_GROUP}" "$i"
:
done
start_daemon "${DAEMON2}" "${PIDFILE2}" "${NAME2}" \
"${PROCNAME2}" "--chuid ${SUID_USER} --group ${SGID_GROUP}" \
"${HPSSDOPTIONS}"
} ; then
log_end_msg 0
reload_cups
else
log_end_msg 1 || true
return 1
fi
return 0
}
do_stop () {
log_daemon_msg "Stopping ${DESC}"
log_progress_msg "${NAME1}"
if stop_daemon "${DAEMON2}" "${PIDFILE2}" "${NAME2}" \
"${PROCNAME2}"
then
log_progress_msg "${NAME2}"
stop_daemon "${DAEMON1}" "${PIDFILE1}" "${NAME1}" \
"${PROCNAME1}" && {
log_end_msg 0
return 0
}
log_end_msg 1 || true
return 1
else
log_end_msg 1 || true
log_daemon_msg "Stopping ${DESC}"
log_progress_msg "${NAME2}"
if stop_daemon "${DAEMON1}" "${PIDFILE1}" "${NAME1}" \
"${PROCNAME1}" ;
then
log_end_msg 1 || true
else
log_end_msg 0
fi
log_failure_msg "Failed to stop all components of ${DESC}."
return 1
fi
}
case "$1" in
start)
set -e
do_start
exit 0
;;
stop)
set -e
do_stop
exit 0
;;
restart|force-reload)
do_stop || true
set -e
do_start
exit 0
;;
*)
log_warning_msg "Usage: $0 {start|stop|restart|force-reload}"
exit 1
;;
esac
exit 0
|