netdev - Re: follow-up: discrepancy with POSIX

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Message-ID: <46F156A7.5000304@redhat.com>
Date:	Wed, 19 Sep 2007 10:04:39 -0700
From:	Ulrich Drepper <drepper@...hat.com>
To:	David Miller <davem@...emloft.net>
CC:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: follow-up: discrepancy with POSIX

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David Miller wrote:
> It just occured to me that AF_UNSPEC might be used simply
> because "all zeros" might be a valid real bindable address
> for some address family.  And using AF_UNSPEC avoids that
> problem entirely.

Yes, but for IPv4/6 it's not an issue.  Some implementations might
handle all-zeros and the spec _currently_ calls for it.  In this case an
alignment would be good.

I guess I'll just go ahead and file a problem report with the spec.
Maybe the Unix vendors will test their implementations in provide feedback.

- --
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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