From: Joel VanderWerf <joelvanderwerf@...>
Date: 2010-11-03T01:15:53+09:00
Subject: Re: Local server-client communication

On 11/02/2010 07:51 AM, Javier 12 wrote:
> Hi, i'm coding a linux local server (daemon) and it will have a command
> line tool to communicate with it.
>
> What I want to accomplish is something like iptables tool, you write
> some rules on the command line and they are sent to the "daemon", in
> this case the kernel module.
>
> How can I achieve it? I've seen ruby does not support mkfifo, and a
> solution based on system() calls is really ugly.
>
> Unix socket? plain file?
>
> what do you use?
> thanks in advance

Unix sockets are fine for this purpose. You can write your own protocol 
on top of them, or use druby (assuming the client is in ruby too).