From: Arnd Bergmann <arnd@arndb.de>
To: Roland McGrath <roland@redhat.com>
Cc: linasvepstas@gmail.com, Chris Metcalf <cmetcalf@tilera.com>,
GLIBC Devel <libc-alpha@sourceware.org>,
linux-kernel@vger.kernel.org, libc-ports@sourceware.org,
linux-api@vger.kernel.org, Mike Frysinger <vapier@gentoo.org>
Subject: Re: [BUG] Generic syscalls -- chmod vs. fchmodat
Date: Tue, 25 Jan 2011 19:21:14 +0100 [thread overview]
Message-ID: <201101251921.15184.arnd@arndb.de> (raw)
In-Reply-To: <20110125174515.C1DC2183C19@magilla.sf.frob.com>
On Tuesday 25 January 2011 18:45:15 Roland McGrath wrote:
> I know of no reason to
> think that the current treatment of the empty string was ever intended at
> the creation of the *at interfaces.
I always assumed that this was done so that the *at syscalls can replace
both the ones that take a file descriptor (e.g. fstat) and the ones that
take a pathname (e.g. stat), which is sensible for the non-AT_FDCWD case,
although not documented in the man pages.
Treating the empty string special for AT_FDCWD is rather pointless, but
at least consistent.
Arnd
next prev parent reply other threads:[~2011-01-25 18:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-24 19:57 [BUG] Generic syscalls -- chmod vs. fchmodat Linas Vepstas
2011-01-24 21:05 ` Roland McGrath
2011-01-24 21:32 ` Mike Frysinger
2011-01-25 14:29 ` Arnd Bergmann
2011-01-25 17:45 ` Roland McGrath
2011-01-25 18:21 ` Arnd Bergmann [this message]
2011-01-25 18:34 ` Roland McGrath
2011-01-25 20:04 ` Arnd Bergmann
2011-01-25 18:52 ` Mike Frysinger
2011-01-25 19:56 ` Eric Blake
2011-01-25 20:31 ` Eric Blake
2011-01-25 21:32 ` Eric Blake
2011-01-25 22:10 ` Linas Vepstas
2011-02-10 18:12 ` Andries Brouwer
2011-02-10 18:17 ` Roland McGrath
2011-02-11 9:11 ` Andreas Schwab
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