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Re: [PATCH][BZ #15701] Freopen with closed file descriptors.

From: Jeff Law <law at redhat dot com>
To: OndÅej BÃlka <neleai at seznam dot cz>, libc-alpha at sourceware dot org
Date: Wed, 09 Oct 2013 13:32:25 -0600
Subject: Re: [PATCH][BZ #15701] Freopen with closed file descriptors.
Authentication-results: sourceware.org; auth=none
References: <20131009192116 dot GA3800 at domone dot podge>

On 10/09/13 13:21, OndÅej BÃlka wrote:

Hi,

This bug complains about undefined behavior when user closes file
descriptor. This is again patch or close case.

We could check this by asking kernel if descriptor is valid.

Comments?


	* libio/freopen.c: Check if file descriptors are open.

Couldn't this be done in a pre-load checker as well so that conformingcode doesn't pay the checking penalty?


Jeff

Follow-Ups:
- Re: [PATCH][BZ #15701] Freopen with closed file descriptors.
  - From: OndÅej BÃlka

References:
- [PATCH][BZ #15701] Freopen with closed file descriptors.
  - From: OndÅej BÃlka

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