12-13-2006
Simple C question... Hopefully it's simple
Hello. I'm a complete newbie to C programming. I have a C program that wasn't written by me where I need to write some wrappers around it to automate and make it easier for a client to use. The problem is that the program accepts standard input to control the program... I'm hoping to find a simple way to modify the program to also accept input from a text file instead. Can someone please help me with this? I know my post is very vague, but hopefully someone can help guide me. Thanks.
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lpc(8) Apple Inc. lpc(8)
NAME
lpc - line printer control program
SYNOPSIS
lpc [ command [ parameter(s) ] ]
DESCRIPTION
lpc provides limited control over printer and class queues provided by CUPS. It can also be used to query the state of queues.
If no command is specified on the command-line, lpc will display a prompt and accept commands from the standard input.
COMMANDS
The lpc program accepts a subset of commands accepted by the Berkeley lpc program of the same name:
exit
Exits the command interpreter.
help [command]
? [command]
Displays a short help message.
quit
Exits the command interpreter.
status [queue]
Displays the status of one or more printer or class queues.
LIMITATIONS
Since lpc is geared towards the Berkeley printing system, it is impossible to use lpc to configure printer or class queues provided by
CUPS. To configure printer or class queues you must use the lpadmin(8) command or another CUPS-compatible client with that functionality.
COMPATIBILITY
The CUPS version of lpc does not implement all of the standard Berkeley or LPRng commands.
SEE ALSO
cancel(1), cupsaccept(8), cupsenable(8), lp(1), lpr(1), lprm(1), lpstat(1),
http://localhost:631/help
COPYRIGHT
Copyright 2007-2013 by Apple Inc.
3 November 2008 CUPS lpc(8)