Date: Fri, 20 Sep 2002 13:11:20 +0200 From: Frank Heitmann <fh31415@gmx.net> To: freebsd-questions@freebsd.org Subject: Re: gethostbyname Message-ID: <20020920131120.A167@host1.myhost.mydomain> In-Reply-To: <200209200618.XAA05767@idk.com>; from tony@idk.com on Thu, Sep 19, 2002 at 11:18:56PM -0700 References: <200209200618.XAA05767@idk.com>
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> Anyone have a simple example of how to use this function..
This should work (and is really reduced to a minimum)
=====================================================
struct hostent *hostentry;
if ( (hostentry = gethostbyname("localhost")) == NULL) {
// Error handling
}
printf("Name: %s; Alias: %s\n",
hostentry->h_name, hostentry->h_aliases[0]);
=====================================================
At my system the output is just:
"Name: localhost; Alias: (null)"
Note that gethostbyname tries to get information from the nameserver
or /etc/hosts. (I don't know if the order in which these are accessed
depends on /etc/host.conf and I also do not know if the lookup in
/etc/hosts only occurs if the local name server is not running - it
seems so to me, according to gethostbyname(3))
Cheers,
Frank
--
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