Date: Fri, 5 Jan 2001 13:20:02 -0800 (PST) From: Andrew Arensburger <arensb@ooblick.com> To: freebsd-doc@freebsd.org Subject: Re: docs/23823: gethostbyname2 man page is inaccurate Message-ID: <200101052120.f05LK2x76018@freefall.freebsd.org>
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The following reply was made to PR docs/23823; it has been noted by GNATS.
From: Andrew Arensburger <arensb@ooblick.com>
To: Alexander Langer <alex@big.endian.de>
Cc: <freebsd-gnats-submit@FreeBSD.org>, <arensb@ooblick.com>
Subject: Re: docs/23823: gethostbyname2 man page is inaccurate
Date: Fri, 5 Jan 2001 16:01:07 -0500 (EST)
On Fri, 5 Jan 2001, Alexander Langer wrote:
> Uhm - I'm just curious:
>
> What has _NIS_ to do with DNS issues????
Nothing directly. The gethost*() functions get the host
information from either /etc/hosts, NIS, or DNS, as specified in
/etc/host.conf .
gethostbyname() is the classic "get host information" function,
but it only handles IPv4 (AF_INET). gethostbyname2() is more generic and
can handle IPv6 (AF_INET6).
gethostbyname2("myhost.dom.ain", AF_INET6) works quite well for
/etc/hosts and DNS. The only case in which it doesn't work, as far as I
can tell, is with NIS. I don't know whether this is a limitation of NIS
itself, or just FreeBSD's implementation of it.
At any rate, the man page for gethostbyname2() implies that
only AF_INET works. This doesn't appear to be true.
--
Andrew Arensburger This message *does* represent the
arensb@ooblick.com views of ooblick.com
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