*nix & slashfilenames

[Brian L. Stuart]

From: Roger Merchberger <zmerch-cctalk at 30below.com>
>
> Rumor has it that Tim Riker may have mentioned these words:
> >timr at slop:~$ touch \/path
> >touch: cannot touch `/path': Permission denied
> >timr at slop:~$ uname -a
> >Linux slop 2.6.24-timriker #1 SMP Sun Feb 17 01:36:19 MST 2008 i686
> >GNU/Linux
> >
> >which *nix are you on? just curious.
> 
> I was too, because it didn't work on this either:
> 
> Linux mail.30below.com 2.4.20-8 #1 Thu Mar 13 17:18:24 EST 2003 i686 athlon 
> i386 GNU/Linux
> 
> Maybe 2.2?

Taking a look at the ext3 source (it's in my
mental cache from the book project), there's
no escaping of the '/' character.  In __link_path_walk(),
it clearly splits on '/' and doesn't look at the
previous character at all.

To bring it back on topic (and because I was
curious), I just pulled out my copy of Lions
and in 6th edition namei(), it's the same
thing.  It definitely loops looking for '/'
with no regard to the previous character.

So, the old and the new both do not recognize
a file with '/' in the name.  I'm not sufficiently
motivated to look through the BSD FFS :-)

BLS