ypset.c revision 1.16 
1/*	$NetBSD: ypset.c,v 1.16 2004/09/07 13:20:41 jrf Exp $	*/
2
3/*
4 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30#ifndef lint
31__RCSID("$NetBSD: ypset.c,v 1.16 2004/09/07 13:20:41 jrf Exp $");
32#endif
33
34#include <sys/param.h>
35#include <sys/types.h>
36#include <sys/socket.h>
37#include <stdio.h>
38#include <string.h>
39#include <stdlib.h>
40#include <unistd.h>
41#include <err.h>
42#include <netdb.h>
43
44#include <rpc/rpc.h>
45#include <rpc/xdr.h>
46#include <rpcsvc/yp_prot.h>
47#include <rpcsvc/ypclnt.h>
48#include <arpa/inet.h>
49
50int	main __P((int, char *[]));
51static void usage __P((void));
52static void gethostaddr __P((const char *, struct in_addr *));
53static int bind_tohost __P((struct sockaddr_in *, char *, char *));
54
55int
56main(argc, argv)
57	int argc;
58	char *argv[];
59{
60	struct sockaddr_in sin;
61	char *domainname;
62	int c;
63
64	yp_get_default_domain(&domainname);
65
66	(void) memset(&sin, 0, sizeof sin);
67	sin.sin_family = AF_INET;
68	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
69
70	while ((c = getopt(argc, argv, "h:d:")) != -1) {
71		switch(c) {
72		case 'd':
73			domainname = optarg;
74			break;
75
76		case 'h':
77			gethostaddr(optarg, &sin.sin_addr);
78			break;
79
80		default:
81			usage();
82		}
83	}
84
85	if (domainname == NULL)
86		errx(1, "YP domain name not set");
87
88	argc -= optind;
89	argv += optind;
90
91	if (argc != 1)
92		usage();
93
94	return bind_tohost(&sin, domainname, argv[0]) != 0;
95}
96
97static void
98gethostaddr(host, ia)
99	const char *host;
100	struct in_addr *ia;
101{
102	struct hostent *hp;
103
104	if (inet_aton(host, ia) != 0)
105		return;
106
107	hp = gethostbyname(host);
108	if (hp == NULL)
109		errx(1, "Cannot get host address for %s: %s", host,
110		    hstrerror(h_errno));
111	(void) memcpy(ia, hp->h_addr, sizeof(*ia));
112}
113
114static int
115bind_tohost(sin, dom, server)
116	struct sockaddr_in *sin;
117	char *dom, *server;
118{
119	struct ypbind_setdom ypsd;
120	struct timeval tv;
121	CLIENT *client;
122	int sock, port;
123	int r;
124
125	port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP));
126	if (port == 0)
127		errx(1, "%s not running ypserv.", server);
128
129	(void) memset(&ypsd, 0, sizeof ypsd);
130
131	gethostaddr(server, &ypsd.ypsetdom_addr);
132
133	(void) strlcpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain);
134	ypsd.ypsetdom_port = port;
135	ypsd.ypsetdom_vers = YPVERS;
136
137	tv.tv_sec = 15;
138	tv.tv_usec = 0;
139	sock = RPC_ANYSOCK;
140
141	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
142	if (client == NULL) {
143		warnx("Can't yp_bind: Reason: %s", yperr_string(YPERR_YPBIND));
144		return YPERR_YPBIND;
145	}
146	client->cl_auth = authunix_create_default();
147
148	r = clnt_call(client, YPBINDPROC_SETDOM,
149	    xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
150	if (r) {
151		warnx("Cannot ypset for domain %s on host %s: %s.",
152		    dom, server, clnt_sperrno(r));
153		clnt_destroy(client);
154		return YPERR_YPBIND;
155	}
156	clnt_destroy(client);
157	return 0;
158}
159
160static void
161usage()
162{
163	(void) fprintf(stderr, "usage: %s [-h host ] [-d domain] server\n",
164	    getprogname());
165	exit(1);
166}
167