1 /* $OpenBSD: ypset.c,v 1.21 2024/08/27 06:04:03 florian Exp $ */
2 /* $NetBSD: ypset.c,v 1.8 1996/05/13 02:46:33 thorpej Exp $ */
3
4 /*
5 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
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 #include <sys/types.h>
31 #include <sys/socket.h>
32 #include <err.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
37 #include <netdb.h>
38
39 #include <rpc/rpc.h>
40 #include <rpc/xdr.h>
41 #include <rpcsvc/yp.h>
42 #include <rpcsvc/ypclnt.h>
43 #include <arpa/inet.h>
44
45 static void
usage(void)46 usage(void)
47 {
48 fprintf(stderr, "usage: ypset [-d domain] [-h host] server\n");
49 exit(1);
50 }
51
52 static int
bind_tohost(struct sockaddr_in * sin,char * dom,char * server)53 bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
54 {
55 struct ypbind_setdom ypsd;
56 struct in_addr iaddr;
57 struct addrinfo hints, *res;
58 struct timeval tv;
59 CLIENT *client;
60 int sock, port, r;
61
62 port = getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP);
63 if (port == 0)
64 errx(1, "%s not running ypserv", server);
65 port = htons(port);
66
67 memset(&ypsd, 0, sizeof ypsd);
68
69 memset(&hints, 0, sizeof(hints));
70 hints.ai_family = AF_INET;
71
72 if (getaddrinfo(server, NULL, &hints, &res) != 0)
73 errx(1, "can't find address for %s", server);
74 iaddr = ((struct sockaddr_in *)res->ai_addr)->sin_addr;
75 freeaddrinfo(res);
76
77 ypsd.ypsetdom_domain = dom;
78 bcopy(&iaddr.s_addr, &ypsd.ypsetdom_binding.ypbind_binding_addr,
79 sizeof(ypsd.ypsetdom_binding.ypbind_binding_addr));
80 bcopy(&port, &ypsd.ypsetdom_binding.ypbind_binding_port,
81 sizeof(ypsd.ypsetdom_binding.ypbind_binding_port));
82 ypsd.ypsetdom_vers = YPVERS;
83
84 tv.tv_sec = 15;
85 tv.tv_usec = 0;
86 sock = RPC_ANYSOCK;
87 client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
88 if (client == NULL) {
89 warnx("can't yp_bind: reason: %s", yperr_string(YPERR_YPBIND));
90 return YPERR_YPBIND;
91 }
92 client->cl_auth = authunix_create_default();
93
94 r = clnt_call(client, YPBINDPROC_SETDOM,
95 xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
96 if (r) {
97 warnx("Cannot ypset for domain %s on host %s: %s", dom,
98 server, clnt_sperrno(r));
99 clnt_destroy(client);
100 return YPERR_YPBIND;
101 }
102 clnt_destroy(client);
103 return 0;
104 }
105
106 int
main(int argc,char * argv[])107 main(int argc, char *argv[])
108 {
109 struct sockaddr_in sin;
110 struct addrinfo hints, *res;
111 extern char *optarg;
112 extern int optind;
113 char *domainname;
114 int c;
115
116 yp_get_default_domain(&domainname);
117
118 bzero(&sin, sizeof sin);
119 sin.sin_family = AF_INET;
120 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
121
122 while ((c = getopt(argc, argv, "h:d:")) != -1)
123 switch(c) {
124 case 'd':
125 domainname = optarg;
126 break;
127 case 'h':
128 memset(&hints, 0, sizeof(hints));
129 hints.ai_family = AF_INET;
130
131 if (getaddrinfo(optarg, NULL, &hints, &res) != 0)
132 errx(1, "host %s unknown\n", optarg);
133
134 sin.sin_addr =
135 ((struct sockaddr_in *)res->ai_addr)->sin_addr;
136 freeaddrinfo(res);
137 break;
138 default:
139 usage();
140 }
141
142 if (optind + 1 != argc)
143 usage();
144
145 if (bind_tohost(&sin, domainname, argv[optind]))
146 exit(1);
147 exit(0);
148 }
149