freebsd-src/lib/libypclnt/ypclnt_connect.c

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/*-
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
* NAI Labs, the Security Research Division of Network Associates, Inc.
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
* DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <err.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <rpcsvc/ypclnt.h>
#include "ypclnt.h"
int
ypclnt_connect(ypclnt_t *ypclnt)
{
int r;
/* get default domain name unless specified */
if (ypclnt->domain == NULL) {
if ((ypclnt->domain = malloc(MAXHOSTNAMELEN)) == NULL) {
ypclnt_error(ypclnt, __func__,
"%s", strerror(errno));
return (-1);
}
if (getdomainname(ypclnt->domain, MAXHOSTNAMELEN) != 0) {
ypclnt_error(ypclnt, __func__,
"can't get NIS domain name");
return (-1);
}
}
/* map must be specified */
if (ypclnt->map == NULL) {
ypclnt_error(ypclnt, __func__,
"caller must specify map name");
return (-1);
}
/* get master server for requested map unless specified */
if (ypclnt->server == NULL) {
r = yp_master(ypclnt->domain, ypclnt->map, &ypclnt->server);
if (r != 0) {
ypclnt_error(ypclnt, __func__,
"can't get NIS server name: %s", yperr_string(r));
return (-1);
}
}
ypclnt_error(ypclnt, NULL, NULL);
return (0);
}