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Re: [Hurdextras-hackers] Unionfs and Netio
From: |
Wolfgang Jaehrling |
Subject: |
Re: [Hurdextras-hackers] Unionfs and Netio |
Date: |
Sat, 18 Jan 2003 14:40:43 +0100 |
User-agent: |
Mutt/1.3.28i |
On Fri, Jan 17, 2003 at 03:03:37PM -0500, Matthew Grant wrote:
> I'm just wondering if someone could give me a little briefing on
> what Unionfs and Netio can do for me. I have them both installed
> and would like to start playing with them. Maybe a settrans example
> also, if available.
The mailing list archives contain more than enough information about
them, but I have to admit that it isn't always easy to find the
relevant e-mails; however, calling them (not via settrans, but
directly) with the option `--help' should give most relevant
information.
Short summery: Unionfs unites directory trees:
~$ ls
foo/ bar/
~$ ls foo
frob fyyy fzzz
~$ ls bar
barf/ frob
~$ settrans -c foobar /hurd/unionfs foo bar
~$ ls foobar
barf/ frob fyyy fzzz
In this case, `foobar/frob' would be equivalent to `foo/frob', since
`foo' was given prior to `bar' on the command line to unionfs.
Netio gives access to TCP and UDP connections over the file system. I
think one can say that it relates to `netcat' in the same way in which
named pipes relate to unnamed pipes. I don't remember exactly how to
use it, but something like:
~$ settrans -c /dev/net /hurd/netio
~$ cat /dev/net/tcp/192.168.0.1/13 # Connect to TCP port 13
Cheers,
GNU/Wolfgang