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Date:      Sat, 22 Jun 2013 15:56:18 +0200
From:      Dimitry Andric <dim@FreeBSD.org>
To:        Kimmo Paasiala <kpaasial@gmail.com>
Cc:        Steven Hartland <killing@multiplay.co.uk>, freebsd-stable Stable <freebsd-stable@freebsd.org>, Miroslav Lachman <000.fbsd@quip.cz>
Subject:   Re: sshd didn't run after upgrade to FreeBSD 8.4
Message-ID:  <60F7DD16-087B-4BE1-B4B0-D37B7B62813B@FreeBSD.org>
In-Reply-To: <CA%2B7WWSevOGE5dQ4Ld_mBf_Dp7-f3%2B9AMz7uRihzeqM2rsZsGVA@mail.gmail.com>
References:  <51C22E11.3020008@quip.cz> <CA%2B7WWScSS16URJNQ3h1WjoXaBhG_gBn=ERb_SiCc4y%2BDhBeuKA@mail.gmail.com> <51C23ED9.7070107@quip.cz> <CA%2B7WWSfwXOh_g1hi-5C=hG8NRepNC1NzZjqscQdtqB=fGN2dWg@mail.gmail.com> <FB3070EFDC484C75AB519EA00A237D3E@multiplay.co.uk> <CA%2B7WWSebzFA2heKMAptnFdXYehyAhpNFki7XATzypTreArrc=A@mail.gmail.com> <51C2499B.2060209@quip.cz> <CA%2B7WWSevOGE5dQ4Ld_mBf_Dp7-f3%2B9AMz7uRihzeqM2rsZsGVA@mail.gmail.com>

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On Jun 20, 2013, at 02:24, Kimmo Paasiala <kpaasial@gmail.com> wrote:
...
> Ok, this is crazy. If you put one space after the VersionAddendum
> keyword you get exactly what you want, an empty VersionAddendum
> string. If there's no space but a newline right after the
> VersionAddendum keyword, sshd(8) complains about the line and refuses
> to start. So this is ok (without the single quotes, they are just to
> show the endings of the lines):
> 
> 'VersionAddendum '
> 
> But this is not:
> 
> 'VersionAddendum'
> 
> What are the OpenSSH devs thinking?


I assume they did not take this scenario into account at all.  The
VersionAddendum setting had been a custom FreeBSD addition for some
time, and was not available at all in upstream OpenSSH.  When upstream
decided to add it, they did not specifically care about backwards
compatibility with (until that time) non-standard configuration files...

-Dimitry




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