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From: luc.lewy@vz.cit.alcatel.fr (Luc.LEWY)
Message-Id: <199702071135.MAA19754@bcv64s3e.vz.cit.alcatel.fr>
Subject: Re: fetch and gethostbyname 
To: roberto@eurocontrol.fr (Ollivier Robert)
Date: Fri, 7 Feb 1997 12:35:50 +0100 (MET)
Cc: freebsd-current@freebsd.org
In-Reply-To: <19970207093535.OS29821@caerdonn.eurocontrol.fr> from "Ollivier Robert" at Feb 7, 97 09:35:35 am
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Ollivier Robert wrote:
> I am able to resolve atena with all other tools of course.

	I've got the same problem with ircd 2.9.2
	( It's quite a bit different for me.. As in a config test, I don't
	  have a DNS.. )

	If I setup a DNS and use gethostbyname, that's okay.. 
	If I just have NIS entry for hosts, ircd can't resolv its hostname
	(and idem for all clients comming from the local network)

	Here, at work, with SunOS 4.1.3, no DNS , only complete NIS maps
	entry... ircd can't resolv its hostname, neither clients hostname
	(on the local network)

	Gethostbyname return an errno > 0 in this configuration, h_errno is
	set to 0 and gethostbyname() return the correct info from NIS
	database .. Very often, boggus code check 'errno'.. and not
	'h_errno' .. The correct test would be :
	
	if ( (hostentry=gethostbyname("foobar")) == NULL)
	{
	  /* .. test h_errno here.. */
	}
	errno=0;	/* delete this boggus return code */
	
	h_errno is define in /usr/include/netdb.h 
	error code too.. 

	fifi...