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From: Miquel van Smoorenburg <miquels@cistron.nl>
Subject: Re: rm-ing files with open file descriptors
Date: Sun, 20 Jan 2002 23:10:57 +0000 (UTC)
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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.

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