ypset.c revision 1929 
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 char rcsid[] = "ypset.c,v 1.3 1993/06/12 00:02:37 deraadt 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 <netdb.h>
39#include <rpc/rpc.h>
40#include <rpc/xdr.h>
41#include <rpcsvc/yp_prot.h>
42#include <rpcsvc/ypclnt.h>
43#include <arpa/inet.h>
44
45extern bool_t xdr_domainname();
46
47usage()
48{
49	fprintf(stderr, "Usage:\n");
50	fprintf(stderr, "\typset [-h host ] [-d domain] server\n");
51	exit(1);
52}
53
54bind_tohost(sin, dom, server)
55struct sockaddr_in *sin;
56char *dom, *server;
57{
58	struct ypbind_setdom ypsd;
59	struct timeval tv;
60	struct hostent *hp;
61	CLIENT *client;
62	int sock, port;
63	int r;
64	unsigned long server_addr;
65
66	if( (port=htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0) {
67		fprintf(stderr, "%s not running ypserv.\n", server);
68		exit(1);
69	}
70
71	bzero(&ypsd, sizeof ypsd);
72
73	if( (hp = gethostbyname (server)) != NULL ) {
74		/* is this the most compatible way?? */
75		bcopy (hp->h_addr_list[0], &ypsd.ypsetdom_addr,
76		       sizeof (ypsd.ypsetdom_addr));
77	} else if( (long)(server_addr = inet_addr (server)) == -1) {
78		fprintf(stderr, "can't find address for %s\n", server);
79		exit(1);
80	} else
81		bcopy (&server_addr, &ypsd.ypsetdom_addr,
82		       sizeof (server_addr));
83
84	strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain);
85	ypsd.ypsetdom_port = port;
86	ypsd.ypsetdom_vers = YPVERS;
87
88	tv.tv_sec = 15;
89	tv.tv_usec = 0;
90	sock = RPC_ANYSOCK;
91	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
92	if (client==NULL) {
93		fprintf(stderr, "can't yp_bind: Reason: %s\n",
94			yperr_string(YPERR_YPBIND));
95		return YPERR_YPBIND;
96	}
97	client->cl_auth = authunix_create_default();
98
99	r = clnt_call(client, YPBINDPROC_SETDOM,
100		xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
101	if(r) {
102		fprintf(stderr, "Sorry, cannot ypset for domain %s on host.\n", dom);
103		clnt_destroy(client);
104		return YPERR_YPBIND;
105	}
106	clnt_destroy(client);
107	return 0;
108}
109
110int
111main(argc, argv)
112char **argv;
113{
114	struct sockaddr_in sin;
115	struct hostent *hent;
116	extern char *optarg;
117	extern int optind;
118	char *domainname;
119	int c;
120
121	yp_get_default_domain(&domainname);
122
123	bzero(&sin, sizeof sin);
124	sin.sin_family = AF_INET;
125	sin.sin_addr.s_addr = htonl(0x7f000001);
126
127	while( (c=getopt(argc, argv, "h:d:")) != -1)
128		switch(c) {
129		case 'd':
130			domainname = optarg;
131			break;
132		case 'h':
133			if( (sin.sin_addr.s_addr=inet_addr(optarg)) == -1) {
134				hent = gethostbyname(optarg);
135				if(hent==NULL) {
136					fprintf(stderr, "ypset: host %s unknown\n",
137						optarg);
138					exit(1);
139				}
140				bcopy(&hent->h_addr_list[0], &sin.sin_addr,
141					sizeof sin.sin_addr);
142			}
143			break;
144		default:
145			usage();
146		}
147
148	if(optind + 1 != argc )
149		usage();
150
151	if (bind_tohost(&sin, domainname, argv[optind]))
152		exit(1);
153	exit(0);
154}
155