05-11-2005
You mean that you want the same program to send and receive messages, but how do you plan to run this exactly?
Will the program recv messages that it has itself sent? Or will there be two or more instances of the program running, each putting up messages of its own, while 'recv'ing all other messages?
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LEARN ABOUT CENTOS
lpc-cups
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)