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/* $Id: myname.C,v 1.5 2001/07/24 04:04:09 dm Exp $ */
/*
*
* Copyright (C) 1998 David Mazieres (dm@uun.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include "dns.h"
str
mydomain ()
{
if (!(_res.options & RES_INIT))
res_init ();
return _res.dnsrch[0];
}
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 256
#endif /* !MAXHOSTNAMELEN */
str
myname ()
{
char namebuf[MAXHOSTNAMELEN+1];
namebuf[MAXHOSTNAMELEN] = '\0';
if (gethostname (namebuf, MAXHOSTNAMELEN) < 0)
panic ("gethostname: %m\n");
if (strchr (namebuf, '.'))
return namebuf;
else {
if (!(_res.options & RES_INIT))
res_init ();
if (!_res.dnsrch[0]) {
warn ("cannot find fully qualified domain name\n");
return NULL;
}
return strbuf ("%s.%s", namebuf, _res.dnsrch[0]);
}
}
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