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From: Quentin Rameau <quinq@fifth.space>
To: musl@lists.openwall.com
Subject: Re: [PATCH] resolv.conf parser: concatenate multiple search domain lines
Date: Fri, 30 Mar 2018 14:27:42 +0200	[thread overview]
Message-ID: <20180330142742.04e8fc3f@fifth.space> (raw)
In-Reply-To: <20180330105159.19583-1-nenolod@dereferenced.org>

Hi William,

> Programs such as Docker and Kubernetes write multiple domain search
> lines, such as
> 
> search serious-business.big-data.prod.foo.com
> search big-data.prod.foo.com
> search prod.foo.com
> 
> instead of
> 
> search serious-business.big-data.prod.foo.com big-data.prod.foo.com
> prod.foo.com
> 
> Accordingly, we concatenate the namelist together so that the search
> path is not truncated.

I think this patch should be sent to Docker and Kubernetes instead of
pushing a mitigation for their bug in the libc.

According to documentation, “The domain and search keywords are
mutually exclusive.  If more than one instance of these keywords is
present, the last instance wins.”

This patch would break existing applications relying on documented
behaviour.

- Quentin


  reply	other threads:[~2018-03-30 12:27 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-30 10:51 William Pitcock
2018-03-30 12:27 ` Quentin Rameau [this message]
2018-03-30 13:21   ` Rich Felker
2018-03-30 18:54     ` William Pitcock

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