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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