2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1995, 1996
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * ypupdate client-side library function.
36 * Written by Bill Paul <wpaul@ctr.columbia.edu>
37 * Center for Telecommunications Research
38 * Columbia University, New York City
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
46 #include <rpcsvc/yp_prot.h>
47 #include <rpcsvc/ypclnt.h>
48 #include <rpcsvc/ypupdate_prot.h>
49 #include <rpc/key_prot.h>
52 #define WINDOW (60*60)
60 yp_update(char *domain, char *map, unsigned int ypop, char *key, int keylen,
61 char *data, int datalen)
66 struct ypupdate_args upargs;
67 struct ypdelete_args delargs;
69 char netname[MAXNETNAMELEN+1];
71 struct timeval timeout;
73 /* Get the master server name for 'domain.' */
74 if ((rval = yp_master(domain, map, &master)))
77 /* Check that ypupdated is running there. */
78 if (getrpcport(master, YPU_PROG, YPU_VERS, ypop))
82 if ((clnt = clnt_create(master, YPU_PROG, YPU_VERS, "tcp")) == NULL)
86 * Assemble netname of server.
87 * NOTE: It's difficult to discern from the documentation, but
88 * when you make a Secure RPC call, the netname you pass should
89 * be the netname of the guy on the other side, not your own
90 * netname. This is how the client side knows what public key
91 * to use for the initial exchange. Passing your own netname
92 * only works if the server on the other side is running under
95 if (!host2netname(netname, master, domain)) {
97 return(YPERR_BADARGS);
100 /* Make up a DES session key. */
101 key_gendes(&des_key);
103 /* Set up DES authentication. */
104 if ((clnt->cl_auth = (AUTH *)authdes_create(netname, WINDOW, NULL,
105 &des_key)) == NULL) {
110 /* Set a timeout for clnt_call(). */
112 timeout.tv_sec = TIMEOUT;
115 * Make the call. Note that we use clnt_call() here rather than
116 * the rpcgen-erated client stubs. We could use those stubs, but
117 * then we'd have to do some gymnastics to get at the error
118 * information to figure out what error code to send back to the
119 * caller. With clnt_call(), we get the error status returned to
120 * us right away, and we only have to exert a small amount of
125 upargs.mapname = map;
126 upargs.key.yp_buf_len = keylen;
127 upargs.key.yp_buf_val = key;
128 upargs.datum.yp_buf_len = datalen;
129 upargs.datum.yp_buf_val = data;
131 if ((rval = clnt_call(clnt, YPU_CHANGE,
132 (xdrproc_t)xdr_ypupdate_args, &upargs,
133 (xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
134 if (rval == RPC_AUTHERROR)
142 upargs.mapname = map;
143 upargs.key.yp_buf_len = keylen;
144 upargs.key.yp_buf_val = key;
145 upargs.datum.yp_buf_len = datalen;
146 upargs.datum.yp_buf_val = data;
148 if ((rval = clnt_call(clnt, YPU_INSERT,
149 (xdrproc_t)xdr_ypupdate_args, &upargs,
150 (xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
151 if (rval == RPC_AUTHERROR)
159 delargs.mapname = map;
160 delargs.key.yp_buf_len = keylen;
161 delargs.key.yp_buf_val = key;
163 if ((rval = clnt_call(clnt, YPU_DELETE,
164 (xdrproc_t)xdr_ypdelete_args, &delargs,
165 (xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
166 if (rval == RPC_AUTHERROR)
174 upargs.mapname = map;
175 upargs.key.yp_buf_len = keylen;
176 upargs.key.yp_buf_val = key;
177 upargs.datum.yp_buf_len = datalen;
178 upargs.datum.yp_buf_val = data;
180 if ((rval = clnt_call(clnt, YPU_STORE,
181 (xdrproc_t)xdr_ypupdate_args, &upargs,
182 (xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
183 if (rval == RPC_AUTHERROR)
195 /* All done: tear down the connection. */
196 auth_destroy(clnt->cl_auth);