ypset.c revision 1.2 
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[] = "$Id: ypset.c,v 1.2 1993/05/16 02:49:07 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
44extern bool_t xdr_domainname();
45
46usage()
47{
48	fprintf(stderr, "Usage:\n");
49	fprintf(stderr, "\typset [-h host ] [-d domain] server\n");
50	exit(1);
51}
52
53bind_tohost(sin, dom, server)
54struct sockaddr_in *sin;
55char *dom, *server;
56{
57	struct ypbind_setdom ypsd;
58	struct timeval tv;
59	CLIENT *client;
60	int sock, port;
61	int r;
62
63	if( (port=htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0) {
64		fprintf(stderr, "%s not running ypserv.\n", server);
65		exit(1);
66	}
67
68	bzero(&ypsd, sizeof ypsd);
69	strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain);
70	ypsd.ypsetdom_addr = sin->sin_addr;
71	ypsd.ypsetdom_vers = YPVERS;
72	ypsd.ypsetdom_port = port;
73
74	tv.tv_sec = 15;
75	tv.tv_usec = 0;
76	sock = RPC_ANYSOCK;
77	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, &sock, 0, 0);
78	if (client==NULL) {
79		fprintf(stderr, "can't yp_bind: Reason: %s\n",
80			yperr_string(YPERR_YPBIND));
81		return YPERR_YPBIND;
82	}
83	client->cl_auth = authunix_create_default();
84
85	r = clnt_call(client, YPBINDPROC_SETDOM,
86		xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
87	if(r) {
88		fprintf(stderr, "Sorry, cannot ypset for domain %s on host.\n", dom);
89		clnt_destroy(client);
90		return YPERR_YPBIND;
91	}
92	clnt_destroy(client);
93	return 0;
94}
95
96int
97main(argc, argv)
98char **argv;
99{
100	struct sockaddr_in sin;
101	struct hostent *hent;
102	extern char *optarg;
103	extern int optind;
104	char *domainname;
105	int c;
106
107	yp_get_default_domain(&domainname);
108
109	bzero(&sin, sizeof sin);
110	sin.sin_family = AF_INET;
111	sin.sin_addr.s_addr = htonl(0x7f000001);
112
113	while( (c=getopt(argc, argv, "h:d:")) != -1)
114		switch(c) {
115		case 'd':
116			domainname = optarg;
117			break;
118		case 'h':
119			if( (sin.sin_addr.s_addr=inet_addr(optarg)) == -1) {
120				hent = gethostbyname(optarg);
121				if(hent==NULL) {
122					fprintf(stderr, "ypset: host %s unknown\n",
123						optarg);
124					exit(1);
125				}
126				bcopy(&hent->h_addr_list[0], &sin.sin_addr,
127					sizeof sin.sin_addr);
128			}
129			break;
130		default:
131			usage();
132		}
133
134	if(optind + 1 != argc )
135		usage();
136
137	if (bind_tohost(&sin, domainname, argv[optind]))
138		exit(1);
139	exit(0);
140}
141