ypset.c revision 95658 
1/*
2 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote
14 *    products derived from this software without specific prior written
15 *    permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef lint
31static const char rcsid[] =
32  "$FreeBSD: head/usr.sbin/ypset/ypset.c 95658 2002-04-28 15:18:50Z des $";
33#endif /* not lint */
34
35#include <err.h>
36#include <netdb.h>
37#include <stdio.h>
38#include <string.h>
39#include <unistd.h>
40#include <sys/param.h>
41#include <sys/types.h>
42#include <sys/socket.h>
43#include <rpc/rpc.h>
44#include <rpc/xdr.h>
45#include <rpcsvc/yp.h>
46struct dom_binding{};
47#include <rpcsvc/ypclnt.h>
48#include <arpa/inet.h>
49
50extern bool_t xdr_domainname();
51
52static void
53usage(void)
54{
55	fprintf(stderr, "usage: ypset [-h host] [-d domain] server\n");
56	exit(1);
57}
58
59int
60bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
61{
62	struct ypbind_setdom ypsd;
63	struct timeval tv;
64	struct hostent *hp;
65	CLIENT *client;
66	int sock, port;
67	int r;
68	unsigned long server_addr;
69
70	if ((port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0)
71		errx(1, "%s not running ypserv", server);
72
73	bzero(&ypsd, sizeof ypsd);
74
75	if ((hp = gethostbyname (server)) != NULL) {
76		/* is this the most compatible way?? */
77		bcopy (hp->h_addr_list[0],
78		       (u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr,
79		       sizeof (unsigned long));
80	} else if ((long)(server_addr = inet_addr (server)) == -1) {
81		errx(1, "can't find address for %s", server);
82	} else
83		bcopy (&server_addr,
84		       (u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr,
85		       sizeof (server_addr));
86
87/*	strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); */
88	ypsd.ypsetdom_domain = dom;
89	*(u_long *)&ypsd.ypsetdom_binding.ypbind_binding_port = port;
90	ypsd.ypsetdom_vers = YPVERS;
91
92	tv.tv_sec = 15;
93	tv.tv_usec = 0;
94	sock = RPC_ANYSOCK;
95	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
96	if (client == NULL) {
97		warnx("can't yp_bind, reason: %s", yperr_string(YPERR_YPBIND));
98		return (YPERR_YPBIND);
99	}
100	client->cl_auth = authunix_create_default();
101
102	r = clnt_call(client, YPBINDPROC_SETDOM,
103		(xdrproc_t)xdr_ypbind_setdom, &ypsd,
104		(xdrproc_t)xdr_void, NULL, tv);
105	if (r) {
106		warnx("sorry, cannot ypset for domain %s on host", dom);
107		clnt_destroy(client);
108		return (YPERR_YPBIND);
109	}
110	clnt_destroy(client);
111	return (0);
112}
113
114int
115main(int argc, char *argv[])
116{
117	struct sockaddr_in sin;
118	struct hostent *hent;
119	char *domainname;
120	int c;
121
122	yp_get_default_domain(&domainname);
123
124	bzero(&sin, sizeof sin);
125	sin.sin_family = AF_INET;
126	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
127
128	while ((c = getopt(argc, argv, "h:d:")) != -1)
129		switch (c) {
130		case 'd':
131			domainname = optarg;
132			break;
133		case 'h':
134			if ((sin.sin_addr.s_addr = inet_addr(optarg)) == -1) {
135				hent = gethostbyname(optarg);
136				if (hent == NULL)
137					errx(1, "host %s unknown", optarg);
138				bcopy(&hent->h_addr_list[0], &sin.sin_addr,
139					sizeof sin.sin_addr);
140			}
141			break;
142		default:
143			usage();
144		}
145
146	if (optind + 1 != argc)
147		usage();
148
149	if (bind_tohost(&sin, domainname, argv[optind]))
150		exit(1);
151	exit(0);
152}
153