examples/printing/smbprint

   1 #!/bin/bash
   2
   3 # This script is an input filter for printcap printing on a unix machine. It
   4 # uses the smbclient program to print the file to the specified smb-based
   5 # server and service.
   6 # For example you could have a printcap entry like this
   7 #
   8 # smb:lp=/dev/null:sd=/usr/spool/smb:sh:if=/usr/local/samba/smbprint
   9 #
  10 # which would create a unix printer called "smb" that will print via this
  11 # script. You will need to create the spool directory /usr/spool/smb with
  12 # appropriate permissions and ownerships for your system.
  13
  14 # Set these to the server and service you wish to print to
  15 # In this example I have a WfWg PC called "lapland" that has a printer
  16 # exported called "printer" with no password.
  17
  18 #
  19 # Script further altered by hamiltom@ecnz.co.nz (Michael Hamilton)
  20 # so that the server, service, and password can be read from
  21 # a /usr/var/spool/lpd/PRINTNAME/.config file.
  22 #
  23 # Script further modified by Richard Sharpe to fix some things.
  24 # Get rid of the -x on the first line, and add parameters
  25 #
  26 #    -t  now causes translate to be used when sending files
  27 #
  28 # Further modifications by Alfred Perlstein to fix some problems and
  29 # improve the quality of the code (3-Dec-2001).
  30 #
  31 # More hacking by Richard Sharpe to improve portability. 9-Dec-2001.
  32 #
  33 # In order for this to work the /etc/printcap entry must include an
  34 # accounting file (af=...):
  35 #
  36 #   cdcolour:\
  37 #       :cm=CD IBM Colorjet on 6th:\
  38 #       :sd=/var/spool/lpd/cdcolour:\
  39 #       :af=/var/spool/lpd/cdcolour/acct:\
  40 #       :if=/usr/local/etc/smbprint:\
  41 #       :mx=0:\
  42 #       :lp=/dev/null:
  43 #
  44 # The /usr/var/spool/lpd/PRINTNAME/.config file should contain:
  45 #   server=PC_SERVER
  46 #   service=PR_SHARENAME
  47 #   password="password"
  48 #
  49 # E.g.
  50 #   server=PAULS_PC
  51 #   service=CJET_371
  52 #   password=""
  53
  54 #smbclient=/usr/pkg/bin/smbclient
  55 # Assume that smbclient will be in the same place as smbprint
  56
  57 smbclient="`dirname $0`/smbclient"
  58
  59 #
  60 # The last parameter to the filter is the accounting file name.
  61 #   Extract the directory name from the file name.
  62 #   Concat this with /.config to get the config file.
  63 #
  64 TRANS=0
  65 eval acct_file=\${$#}
  66 spool_dir=`dirname $acct_file`
  67 config_file=$spool_dir/.config
  68
  69 # Should read the following variables set in the config file:
  70 #   server
  71 #   service
  72 #   password
  73 #   username (optional)
  74 #   IP (optional)
  75 #   debug (optional)
  76 #   debugsmb (optional)
  77 #   debugfile (optional)
  78 . $config_file
  79
  80 if [ "x$password" = "x" ] ; then
  81         password="-N"
  82 fi
  83
  84 if [ "x$username" = "x" ] ; then
  85         username="$server";
  86 fi
  87
  88 while test $# -gt 0; do
  89         case "$1" in
  90         -t)
  91                 TRANS=1
  92                 ;;
  93
  94          *)   # Bad Parameters, ignore them ...
  95                 ;;
  96          esac
  97          shift
  98 done
  99
 100 command="print - ;"
 101 if [ $TRANS -eq 1 ]; then
 102         command="translate;$command";
 103 fi
 104
 105 ##
 106 ## Some security checks on the logfile if we are using it
 107 ##
 108 ## make the directory containing the logfile is necessary
 109 ## and set the permissions to be rwx for owner only
 110 ##
 111
 112 debugfile="/tmp/smb-print/logfile"
 113 logdir=`dirname $debugfile`
 114 if [ ! -d $logdir ]; then
 115         mkdir -m 0700 $logdir
 116 fi
 117
 118 ##
 119 ## check ownership.  If I don't own it refuse to
 120 ## create the logfile
 121 ##
 122 if [ ! -O $logdir ]; then
 123         echo "user running script does not own $logdir. Ignoring any debug options."
 124         debug=""
 125 fi
 126
 127 touch $debugfile
 128 if [ -h $debugfile ]; then
 129         echo "$debugful is a symlink.  Turning off debugging!"
 130         debug=""
 131 fi
 132
 133 ##
 134 ## We should be safe at this point to create the log file
 135 ## without fear of a symlink attack -- move on to more script work.
 136 ##
 137
 138 if [ "x$debug" = "x" ] ; then
 139                 debugfile=/dev/null debugargs=
 140 else
 141         if [ $debug -eq 0 ] ; then
 142                 debugfile=/dev/null debugargs=
 143         else
 144                 set -x; exec >>$debugfile 2>&1
 145                 debugargs="$debugfile."
 146                 #[ "x$debugsmb" = "x" ] || debugargs="$debugargs -d $debugsmb"
 147         fi
 148 fi
 149
 150 if [ "x$smbconf" != "x" ]; then
 151
 152         smbconf="-s $smbconf"
 153
 154 fi
 155
 156 if [ "x$IP" != "x" ]; then
 157
 158         IP="-I $IP"
 159
 160 fi
 161
 162 if [ "x$debugargs" != "x" ]; then
 163
 164         debugargs="-l $debugargs"
 165
 166 fi
 167
 168 $smbclient \
 169         "\\\\$server\\$service" \
 170         $password \
 171         $smbconf \
 172         $IP \
 173         $debugargs \
 174         -U $username \
 175         -c "$command"
 176 #