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Re: bin/55815: tar opens device files
The following reply was made to PR bin/55815; it has been noted by GNATS.
From: Joerg Sonnenberger <joerg%bec.de@localhost>
Cc: gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, martin%NetBSD.org@localhost
Subject: Re: bin/55815: tar opens device files
Date: Fri, 4 Jun 2021 22:36:50 +0200
On Fri, Jun 04, 2021 at 05:10:02PM +0000, David Holland wrote:
> However, it also seems foolish to pretend this is a real issue for
> device nodes, so it seems like a perfectly adequate solution is for
> tar to check for device nodes and not open them. Adding another open
> mode seems like severe overkill. (O_NONBLOCK is sufficient for named
Checking for device nodes introduces TOCTOA problems though.
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