English
资源说明：The Net::Printer Perl Module
NAME
Net::Printer - Perl extension for direct-to-lpd printing.
SYNOPSIS
use Net::Printer;
# Create new Printer Object
$lineprinter = new Net::Printer(
filename => "/home/jdoe/myfile.txt",
printer => "lp",
server => "printserver",
port => 515,
lineconvert => "YES"
);
# Print the file
$result = $lineprinter->printfile();
# Optionally print a file
$result = $lineprinter->printfile("/home/jdoe/myfile.txt");
# Print a string
$result =
$lineprinter->printstring("Smoke me a kipper, I'll be back for breakfast.");
# Did I get an error?
$errstr = $lineprinter->printerror();
# Get Queue Status
@result = $lineprinter->queuestatus();
DESCRIPTION
Perl module for directly printing to a print server/printer without
having to create a pipe to either lpr or lp. This essentially mimics
what the BSD LPR program does by connecting directly to the line printer
printer port (almost always 515), and transmitting the data and control
information to the print server.
Please note that this module only talks to print servers that speak BSD.
It will not talk to printers using SMB, SysV, or IPP unless they are set
up as BSD printers. CUPS users will need to set up cups-lpd to provide
legacy access. ( See "Using Net::Printer with CUPS" )
METHODS
new
Constructor returning Net::Printer object
Parameters
A hash with the following keys:
* filename
[optional] absolute path to the file you wish to print.
* printer
[default: "lp"] Name of the printer you wish to print to.
* server
[default: "localhost"] Name of the printer server
* port
[default: 515] The port you wish to connect to
* lineconvert
[default: "NO"] Perform LF -> LF/CR translation
* rfc1179
[default: "NO"] Use RFC 1179 compliant source address. Default "NO".
see "RFC-1179 Compliance Mode and Security Implications".
Returns
The bless'd object
printerror
Getter for error string, if any.
Returns
String containing error text, if any. Undef otherwise.
printfile
Transmits the contents of the specified file to the print server
Parameters
* file
Path to file to print
Returns
1 on success, undef on fail
printstring
Prints the given string to the printer. Note that each string given to
this method will be treated as a separate print job.
Parameters
* string
String to send to print queue
Returns
1 on succes, undef on fail
queuestatus
Retrives status information from print server
Returns
Array containing queue status
TROUBLESHOOTING
Stair Stepping Problem
When printing text, if you have the infamous "stair-stepping" problem,
try setting lineconvert to "YES". This should, in most cases, rectify
the problem.
RFC-1179 Compliance Mode and Security Implications
RFC 1179 specifies that any program connecting to a print service must
use a source port between 721 and 731, which are *reserved ports*,
meaning you must have root (administrative) privileges to use them.
*This is a security risk which should be avoided if at all possible!*
Using Net::Printer with CUPS
Net::Printer does not natively speak to printers running CUPS (which
uses the IPP protocol). In order to provide support for legacy clients,
CUPS provides the cups-lpd mini-server which can be set up to run out of
either inetd or xinetd depending on preference. You will need to set up
this functionality in order to use Net::Printer with CUPS server.
Consult your system documentation as to how to do this.
SEE ALSO
cups-lpd, lp, lpr, perl
RFC 1179
AUTHOR
Christopher M. Fuhrman ""
REVISION INFORMATION
$Id$
COPYRIGHT & LICENSE
Copyright (c) 2000-2004 Christopher M. Fuhrman, All rights reserved.
This program is free software licensed under the...
The BSD License
The full text of the license can be found in the LICENSE file included
with this module.
本源码包内暂不包含可直接显示的源代码文件，请下载源码包。
