May 2013
Intermediate to advanced
1024 pages
34h 32m
English
book
Advanced Programming in the UNIX® Environment, Third Edition
by W. Richard Stevens, Stephen A. Rago
Content preview from Advanced Programming in the UNIX® Environment, Third Edition
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21. Communicating with a Network Printer
21.1. Introduction
We now develop a program that can communicate with a network printer. These printers are connected to multiple computers via Ethernet and often support PostScript files as well as plain text files. Applications generally use the Internet Printing Protocol (IPP) to communicate with these printers, although some support alternative communication protocols.
We are about to describe two programs: a print spooler daemon that sends jobs to a printer and a command to submit print jobs to the spooler daemon. Since the print spooler has to do multiple things (e.g., communicate with clients submitting jobs, communicate with the printer, read files, scan directories), this gives us a chance to ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.