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Date: Mon, 24 Aug 2020 23:04:49 +0200
From: Florian Weimer <fw@...eb.enyo.de>
To: Rich Felker <dalias@...c.org>
Cc: musl@...ts.openwall.com
Subject: Re: Incompatible behaviour of res_query(3) w.r.t. NXDOMAIN
* Rich Felker:
> Hmm, I think in this case the "better" might be sufficient that we
> want to keep it and pressure other implementations to change too. A
> program performing a lookup where the result is NxDomain may very well
> want to know whether that's an authenticated (by DNSSEC) NxDomain or
> one in an insecure zone. Returning an error to the caller with no
> packet contents discards this critical data.
Isn't this the behavior you'd get with res_send?
I think such error translation is precisely the point of the res_query
convenience function (along with the implicit construction of the
query packet).
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