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Date:      Thu, 16 Jan 1997 12:08:44 -0600
From:      Hal Snyder <hal@vailsys.com>
To:        hackers@freebsd.org
Subject:   open () unlinked?
Message-ID:  <32DE6EAC.1A1B@vailsys.com>

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I was at Marcus Ranum's Usenix '97 tuturial on Coding for Hostile
Environments, and the subject came up of creating temporary files
securely.  Open-then-unlink leaves a window for someone to get at the
file.

Has there been any discussion here of adding, e.g., an O_UNLINK flag to
open (), that would effectively create an anonymous temp file?



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