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Date: Fri, 13 Dec 2002 10:30:20 -0500 (EST)
From: "Richard B. Johnson" <root@chaos.analogic.com>
Reply-To: root@chaos.analogic.com
To: Marc-Christian Petersen <m.c.p@wolk-project.de>
cc: linux-kernel@vger.kernel.org, Andrew Walrond <andrew@walrond.org>
Subject: Re: Symlink indirection
In-Reply-To: <200212131611.04355.m.c.p@wolk-project.de>
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On Fri, 13 Dec 2002, Marc-Christian Petersen wrote:

> On Friday 13 December 2002 16:06, Andrew Walrond wrote:
> 
> Hi Andrew,
> 
> > Is the number of allowed levels of symlink indirection (if that is the
> > right phrase; I mean symlink -> symlink -> ... -> file) dependant on the
> > kernel, or libc ? Where is it defined, and can it be changed?
> 
> fs/namei.c
> 
>  if (current->link_count >= 5)
> 
> change to a higher value.
> 
> So, the answer is: Kernel :)
> 
> ciao, Marc

No, that thing (whetever it is) is different.

Script started on Fri Dec 13 10:26:30 2002
# file *
foo:        symbolic link to ../foo
typescript: empty
# pwd
/root/foo
# cd *
# cd *
# cd *
# cd *
# cd *
# cd *
# pwd
/root/foo/foo/foo/foo/foo/foo/foo
# cd *
# cd *
# cd *
# pwd
/root/foo/foo/foo/foo/foo/foo/foo/foo/foo/foo
# cd *
# cd *
# cd *
# pwd
/root/foo/foo/foo/foo/foo/foo/foo/foo/foo/foo/foo/foo/foo
# exit
exit

Script done on Fri Dec 13 10:27:21 2002


You can do this until you run out of string-space. Your "link-count"
has something to do with something else.


Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips).
Why is the government concerned about the lunatic fringe? Think about it.


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