linux-kernel - Re: [PATCH 2/2] Define ENONAMESERVICE and ENAMEUNKNOWN to indicate name service errors

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Date:	Wed, 8 Feb 2012 09:15:52 -0500
From:	Jim Rees <rees@...ch.edu>
To:	David Howells <dhowells@...hat.com>
Cc:	jmorris@...ei.org, keyrings@...ux-nfs.org,
	linux-nfs@...r.kernel.org, linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-cifs@...r.kernel.org,
	linux-api@...r.kernel.org, libc-alpha@...rceware.org
Subject: Re: [PATCH 2/2] Define ENONAMESERVICE and ENAMEUNKNOWN to indicate
 name service errors

David Howells wrote:

  Define ENAMEUNKNOWN to indicate "Network name unknown".  This can be used to
  indicate, for example, that an attempt was made by dns_query() to make a query,
  but the name server (e.g. a DNS server) replied indicating that it had no
  matching records.

Would this be the same as NXDOMAIN?  That is, does it mean the name server
couldn't find a record, or does it mean that the record doesn't exist?
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