#!/bin/bash
#
# Copyright  (c)  2003  SuSE Linux AG  Nuernberg, Germany.
#
# This file and all modifications and additions to the pristine
# package are under the same license as the package itself.
#
# Warning! This script is very dangerous! This script deletes all
# printjobs, regardless if active or waiting or anything else.
# This deletion is done UNRECOVERABLE.
#
# please send bugfixes or comments to feedback@suse.de.
#

# 1. remove old jobs
#    ...find all local printers
printers=`/usr/bin/lpstat -v | \
	/usr/bin/awk '{if ($4 !~ /^ipp:/) {gsub(":$", "", $3); print $3}}'`
#    ...and cancel the jobs
for i in "$printers"; do
	/usr/bin/cancel -a "$i"
done

# 2. kill pending processes
#    ...find process pid of cupsd and remember as parent pid
ppid=`/bin/ps -A | awk '/cupsd/{print $1}'`
#    ...find processes descending from daemon
#    ...find processes owned by "lp"
#list1=`/bin/ps --ppid $ppid | /usr/bin/awk '/[0-9]/{printf "%s ", $1}'`
if test $ppid
then
  list1=`ps -eo "%P %p" | /usr/bin/awk '{if ($1 ~ /'$ppid'/) {print $2}}'`
else
  list1=''
fi
list2=`/bin/ps -A -fl | /usr/bin/awk '{if ($3 ~ "lp") printf "%s ", $4}'`
#    ...kill them
/bin/kill $list1 $list2 >/dev/null 2>&1
/bin/sleep 2
#    ...find processes again
#list1=`/bin/ps --ppid $ppid | /usr/bin/awk '/[0-9]/{printf "%s ", $1}'`
if test $ppid
then
  list1=`ps -eo "%P %p" | /usr/bin/awk '{if ($1 ~ /'$ppid'/) {print $2}}'`
else
  list1=''
fi
list2=`/bin/ps -A -fl | /usr/bin/awk '{if ($3 ~ "lp") printf "%s ", $4}'`
#    ...kill them with HUP (hopefully not necessary)
/bin/kill -1 $list1 $list2 > /dev/null 2>&1
/bin/sleep 3
#    ...find processes again
#list1=`/bin/ps --ppid $ppid | /usr/bin/awk '/[0-9]/{printf "%s ", $1}'`
if test $ppid
then
  list1=`ps -eo "%P %p" | /usr/bin/awk '{if ($1 ~ /'$ppid'/) {print $2}}'`
else
  list1=''
fi
list2=`/bin/ps -A -fl | /usr/bin/awk '{if ($3 ~ "lp") printf "%s ", $4}'`
#    ...kill them finaly with KILL (hopefully not necessary)
/bin/kill -9 $list1 $list2 >/dev/null 2>&1

# 3. enable printers again.
#    ...find disabled printers
printers=`lpstat -p | awk '{if ($3 ~ /disabled/) print $2}'`
#    ...and enable them
for i in "$printers"; do
	/usr/bin/enable "$i" >/dev/null 2>&1
	/usr/sbin/accept "$i" >/dev/null 2>&1
done