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#!/bin/bash
# This script is an input filter for printcap printing on a unix machine. It
# uses the smbclient program to print the file to the specified smb-based
# server and service.
# For example you could have a printcap entry like this
#
# smb:lp=/dev/null:sd=/usr/spool/smb:sh:if=/usr/local/samba/smbprint
#
# which would create a unix printer called "smb" that will print via this
# script. You will need to create the spool directory /usr/spool/smb with
# appropriate permissions and ownerships for your system.
# Set these to the server and service you wish to print to
# In this example I have a WfWg PC called "lapland" that has a printer
# exported called "printer" with no password.
#
# Script further altered by hamiltom@ecnz.co.nz (Michael Hamilton)
# so that the server, service, and password can be read from
# a /usr/var/spool/lpd/PRINTNAME/.config file.
#
# Script further modified by Richard Sharpe to fix some things.
# Get rid of the -x on the first line, and add parameters
#
# -t now causes translate to be used when sending files
#
# Further modifications by Alfred Perlstein to fix some problems and
# improve the quality of the code (3-Dec-2001).
#
# More hacking by Richard Sharpe to improve portability. 9-Dec-2001.
#
# In order for this to work the /etc/printcap entry must include an
# accounting file (af=...):
#
# cdcolour:\
# :cm=CD IBM Colorjet on 6th:\
# :sd=/var/spool/lpd/cdcolour:\
# :af=/var/spool/lpd/cdcolour/acct:\
# :if=/usr/local/etc/smbprint:\
# :mx=0:\
# :lp=/dev/null:
#
# The /usr/var/spool/lpd/PRINTNAME/.config file should contain:
# server=PC_SERVER
# service=PR_SHARENAME
# password="password"
#
# E.g.
# server=PAULS_PC
# service=CJET_371
# password=""
#smbclient=/usr/pkg/bin/smbclient
# Assume that smbclient will be in the same place as smbprint
smbclient="`dirname $0`/smbclient"
#
# The last parameter to the filter is the accounting file name.
# Extract the directory name from the file name.
# Concat this with /.config to get the config file.
#
TRANS=0
eval acct_file=\${$#}
spool_dir=`dirname $acct_file`
config_file=$spool_dir/.config
# Should read the following variables set in the config file:
# server
# service
# password
# username (optional)
# IP (optional)
# debug (optional)
# debugsmb (optional)
# debugfile (optional)
. $config_file
if [ "x$password" = "x" ] ; then
password="-N"
fi
if [ "x$username" == "x" ] ; then
username="$server";
fi
while test $# -gt 0; do
case "$1" in
-t)
TRANS=1
;;
*) # Bad Parameters, ignore them ...
;;
esac
shift
done
command="print - ;"
if [ $TRANS -eq 1 ]; then
command="translate;$command";
fi
##
## Some security checks on the logfile if we are using it
##
## make the directory containing the logfile is necessary
## and set the permissions to be rwx for owner only
##
debugfile="/tmp/smb-print/logfile"
logdir=`dirname $debugfile`
if [ ! -d $logdir ]; then
mkdir -m 0700 $logdir
fi
##
## check ownership. If I don't own it refuse to
## create the logfile
##
if [ ! -O $logdir ]; then
echo "user running script does not own $logdir. Ignoring any debug options."
debug=""
fi
touch $debugfile
if [ -h $debugfile ]; then
echo "$debugful is a symlink. Turning off debugging!"
debug=""
fi
##
## We should be safe at this point to create the log file
## without fear of a symlink attack -- move on to more script work.
##
if [ "x$debug" = "x" ] ; then
debugfile=/dev/null debugargs=
else
if [ $debug -eq 0 ] ; then
debugfile=/dev/null debugargs=
else
set -x; exec >>$debugfile 2>&1
debugargs="$debugfile."
#[ "x$debugsmb" == "x" ] || debugargs="$debugargs -d $debugsmb"
fi
fi
if [ "x$smbconf" != "x" ]; then
smbconf="-s $smbconf"
fi
if [ "x$IP" != "x" ]; then
IP="-I $IP"
fi
if [ "x$debugargs" != "x" ]; then
debugargs="-l $debugargs"
fi
$smbclient \
"\\\\$server\\$service" \
$password \
$smbconf \
$IP \
$debugargs \
-U $username \
-c "$command"
#
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