Date: Thu, 20 Mar 2003 06:19:16 +0200
From: "Eli Zaretskii" <eliz AT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: rich AT phekda DOT freeserve DOT co DOT uk
Message-Id: <2593-Thu20Mar2003061916+0200-eliz@elta.co.il>
X-Mailer: emacs 21.3.50 (via feedmail 8 I) and Blat ver 1.8.9
CC: djgpp-workers AT delorie DOT com
In-reply-to: <3E78DB55.6A8E9C59@phekda.freeserve.co.uk> (message from Richard
	Dawe on Wed, 19 Mar 2003 21:04:21 +0000)
Subject: Re: fchdir, revision 2 [PATCH]
References: <E18vcu4-0000a1-00 AT phekda DOT freeserve DOT co DOT uk> <7458-Wed19Mar2003174724+0200-eliz AT elta DOT co DOT il> <3E78AC79 DOT D615F93B AT phekda DOT freeserve DOT co DOT uk> <7458-Wed19Mar2003223447+0200-eliz AT elta DOT co DOT il> <3E78DB55 DOT 6A8E9C59 AT phekda DOT freeserve DOT co DOT uk>
Reply-To: djgpp-workers AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp-workers AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

> Date: Wed, 19 Mar 2003 21:04:21 +0000
> From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
> 
> According to POSIX: You can't get a file descriptor for a symlink using
> open(). For a symlink, open() should follow the symlink.
> 
> We have the additional options:
> 
> * O_NOFOLLOW, which causes open() to fail, if the file is a symlink.
> * O_NOLINK, which causes open() to actually open the symlink as a normal file.
> 
> If you've used O_NOLINK, I think it's reasonable to return info about the
> symlink.

Okay, thanks.  So this logic should be inside `open', and `fstat'
doesn't have to care about the issue.

> I suppose you could get a handle to a symlink using _open(). But in that case
> the file descriptor was created outside the normal POSIX I/O functions. I
> think it's reasonable to treat the "symlink" as a normal file in that case.

Yes, "then don't do that" is the usual response top such situations.