Date: Tue, 01 May 2012 12:02:05 +0100 From: Matthew Seaman <matthew@FreeBSD.org> To: Unga <unga888@yahoo.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@FreeBSD.org> Subject: Re: localhost not recognised in getaddrinfo(3) in FreeBSD 9.0-STABLE Message-ID: <4F9FC2AD.30905@FreeBSD.org> In-Reply-To: <1335866914.5649.YahooMailNeo@web160106.mail.bf1.yahoo.com> References: <1335866914.5649.YahooMailNeo@web160106.mail.bf1.yahoo.com>
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On 01/05/2012 11:08, Unga wrote:
> Following code fragment works in FreeBSD 8.1-RELEASE, but not in FreeBSD 9.0-STABLE:
>
> error = getaddrinfo("localhost", port, &hints, &res0);
> if (error)
> {
> fprintf(stderr,"getaddrinfo failed - %s\n", gai_strerror(error));
> exit(1);
> }
>
> It complains: getaddrinfo failed - hostname nor servname provided, or not known
>
> Any idea why?
>
So, what is the variable 'port' initialized to? It should be a const
char* with the name of a network service found in /etc/services or else
the string representation of a port number in decimal.
Failing that, this is almost certainly a configuration snafu on your
9.0-STABLE box.
Does this machine have an entry for localhost in /etc/hosts ? Can it
resolve localhost via the DNS? Or through any other means such as NIS or
LDAP?
What does:
% getent hosts localhost
return?
If that fails, sanity check /etc/nsswitch.conf and /etc/resolv.conf
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil.
PGP: http://www.infracaninophile.co.uk/pgpkey
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