From owner-freebsd-standards@FreeBSD.ORG  Thu Jun  2 19:59:11 2005
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Date: Thu, 2 Jun 2005 15:59:07 -0400 (EDT)
From: Daniel Eischen <deischen@freebsd.org>
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To: Hajimu UMEMOTO <ume@freebsd.org>
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Cc: nectar@freebsd.org, standards@freebsd.org, current@freebsd.org,
	freebsd-arch@freebsd.org
Subject: Re: [CFR] correct type of addrinfo.ai_addrlen and netent.n_net
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On Fri, 3 Jun 2005, Hajimu UMEMOTO wrote:

> Hi,
>
> >>> On Wed, 01 Jun 2005 21:44:03 +0900
> >>> Hajimu UMEMOTO <ume@mahoroba.org> said:
>
> ume> I've attached the patch to correct 1st argument of getnetbyaddr(3) in
> ume> this mail.  It is subset of my previous patch.  Since it breaks ABI
> ume> compatibility of getnetbyaddr(3), I think it is better to correct
> ume> n_net member of struct netent, too.  Since there is objection, the
> ume> patch leaves struct addrinfo as is.  So, it doesn't need to bump any
> ume> shlib major.  Is it okay?
>
> Ultimately, I wish to correct struct addrinfo, too.  Since correcting
> getnetbyaddr(3) breaks ABI compatibility after all, it seems storange
> to me to leave struct addrinfo alone as is.  It is better to take this
> occasion to correct struct addrinfo as well.
> This breakage is only on 64 bit arch.  The influence will grow as 64
> bit arch spreads.  So, I believe it should be done as soon as
> possible.

Just leave it alone for now.  When symbol versioning comes, you
should be able to remove the padding without bumping library versions
and producing imcompatibilities.

-- 
DE