1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed for the FreeBSD Project by ThinkSec AS and
8 * NAI Labs, the Security Research Division of Network Associates, Inc.
9 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
10 * DARPA CHATS research program.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote
21 * products derived from this software without specific prior written
22 * permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #include <sys/param.h>
38
39 #include <err.h>
40 #include <errno.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44
45 #include <rpcsvc/ypclnt.h>
46
47 #include "ypclnt.h"
48
49 int
ypclnt_connect(ypclnt_t * ypclnt)50 ypclnt_connect(ypclnt_t *ypclnt)
51 {
52 int r;
53
54 /* get default domain name unless specified */
55 if (ypclnt->domain == NULL) {
56 if ((ypclnt->domain = malloc(MAXHOSTNAMELEN)) == NULL) {
57 ypclnt_error(ypclnt, __func__,
58 "%s", strerror(errno));
59 return (-1);
60 }
61 if (getdomainname(ypclnt->domain, MAXHOSTNAMELEN) != 0) {
62 ypclnt_error(ypclnt, __func__,
63 "can't get NIS domain name");
64 return (-1);
65 }
66 }
67
68 /* map must be specified */
69 if (ypclnt->map == NULL) {
70 ypclnt_error(ypclnt, __func__,
71 "caller must specify map name");
72 return (-1);
73 }
74
75 /* get master server for requested map unless specified */
76 if (ypclnt->server == NULL) {
77 r = yp_master(ypclnt->domain, ypclnt->map, &ypclnt->server);
78 if (r != 0) {
79 ypclnt_error(ypclnt, __func__,
80 "can't get NIS server name: %s", yperr_string(r));
81 return (-1);
82 }
83 }
84
85 ypclnt_error(ypclnt, NULL, NULL);
86 return (0);
87 }
88