From: Miquel van Smoorenburg <miquels@cistron.nl>
To: linux-kernel@vger.kernel.org
Subject: Re: rm-ing files with open file descriptors
Date: Sun, 20 Jan 2002 23:10:57 +0000 (UTC) [thread overview]
Message-ID: <a2fiq1$ddk$3@ncc1701.cistron.net> (raw)
In-Reply-To: <a2bk6e$t2u$1@ncc1701.cistron.net> <Pine.GSO.4.21.0201190627310.3523-100000@weyl.math.psu.edu> <8HBE1o7mw-B@khms.westfalen.de> <843d119h0g.fsf@rjk.greenend.org.uk>
In article <843d119h0g.fsf@rjk.greenend.org.uk>,
Richard Kettlewell <rjk@terraraq.org.uk> wrote:
>If the file descriptor you have was opened O_RDONLY, but you have
>write permission on the file itself, then creating a new name for it
>would allow you to open it O_RDWR.
/proc allows for this anyway.
open("knuth.txt", O_RDONLY) = 3
unlink("knuth.txt") = 0
open("/proc/self/fd/3", O_RDWR) = 4
Mike.
next prev parent reply other threads:[~2002-01-20 23:11 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-18 21:11 rm-ing files with open file descriptors Doug Alcorn
2002-01-18 21:27 ` Xavier Bestel
2002-01-18 21:28 ` Ken Brownfield
2002-01-19 20:23 ` Rob Landley
2002-01-18 21:49 ` Richard B. Johnson
2002-01-19 0:50 ` Miquel van Smoorenburg
2002-01-19 2:29 ` H. Peter Anvin
2002-01-19 10:57 ` Xavier Bestel
2002-01-19 11:10 ` Miquel van Smoorenburg
2002-01-19 11:28 ` Alexander Viro
2002-01-19 12:01 ` Miquel van Smoorenburg
2002-01-23 12:18 ` Pavel Machek
2002-01-24 9:46 ` Herbert Xu
2002-01-19 17:44 ` Kai Henningsen
2002-01-20 15:30 ` Richard Kettlewell
2002-01-20 18:21 ` Doug McNaught
2002-01-20 23:10 ` Miquel van Smoorenburg [this message]
2002-01-20 3:55 ` Chris Wedgwood
2002-01-19 15:21 ` Horst von Brand
2002-01-19 15:32 ` Mr. James W. Laferriere
2002-01-19 20:26 ` Rob Landley
2002-01-19 17:53 ` Miquel van Smoorenburg
2002-01-20 15:48 ` Horst von Brand
2002-01-19 20:24 ` Rob Landley
2002-01-19 11:15 ` Ville Herva
2002-01-19 12:16 ` Matthias Schniedermeyer
2002-01-19 12:22 ` Xavier Bestel
2002-01-19 12:29 ` Alexander Viro
2002-01-19 12:46 ` Xavier Bestel
2002-01-19 13:18 ` Rogier Wolff
2002-01-19 15:24 ` Horst von Brand
2002-01-19 14:50 ` Horst von Brand
2002-01-20 14:23 ` Remi Turk
2002-01-20 20:02 ` Ville Herva
2002-01-20 20:44 ` Andreas Ferber
2002-01-20 21:08 ` Ville Herva
2002-01-21 9:06 ` Horst von Brand
2002-01-21 9:21 ` Ville Herva
2002-01-18 21:59 ` J Sloan
2002-01-19 4:18 ` Andreas Bombe
2002-01-19 14:51 ` christophe barbé
2002-01-19 18:01 ` Kai Henningsen
2002-01-20 3:43 ` christophe barbé
-- strict thread matches above, loose matches on Subject: below --
2002-01-18 22:11 Hank Leininger
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