source: branches/samba-3.0/examples/printer-accounting/hp5-redir@ 462

#!/usr/bin/perl
#
# 0 == stdin  == docuement
# 1 == stdout == printer
# 2 == stderr == logging
#
# With redirection to another valid /etc/printcap entry
#

umask(002);

# -w132 -l66 -i0 -n pkelly -h master.fcp.oypi.com /var/log/lp-acct
require "getopts.pl";
&Getopts("w:l:i:n:h:");

chomp($date = `date '+%Y-%m-%d.%T'`);

($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
        $atime,$mtime,$ctime,$blksize,$blocks)
 = stat(STDIN);

# send to the real printer now.
open(P, "|lpr -Pmgmt0") || die "Can't print to hp5-real ($!)\n";
$cnt = 0;
while (sysread(STDIN, $buf, 10240)) {
        print P $buf;
        # this is ugly, but it gives the approx in pages.  We
        # don't print graphics, so ...  There must be a better way :)
        $cnt += ($buf =~ /^L/g);
}
close(P);

$acct = shift;
if (open(ACCT, ">>$acct")) {
        print ACCT "$date $opt_n $opt_h $size $cnt\n";
        close(ACCT);
} else {
        warn "Err: Can't account for it ($!)\n";
        warn "Log: $date $opt_n $opt_h $size $cnt\n";
}