1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1995, 1996
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 #include <stdlib.h>
37 #include <rpc/rpc.h>
38 #include <rpcsvc/yp_prot.h>
39 #include <rpcsvc/ypclnt.h>
40 #include <rpcsvc/yppasswd.h>
41 #include <netinet/in.h>
42
43 /*
44 * XXX <rpcsvc/yppasswd.h> does a typedef that makes 'yppasswd'
45 * a type of struct yppasswd. This leads to a namespace collision:
46 * gcc will not let you have a type called yppasswd and a function
47 * called yppasswd(). In order to get around this, we call the
48 * actual function _yppasswd() and put a macro called yppasswd()
49 * in yppasswd.h which calls the underlying function, thereby
50 * fooling gcc.
51 */
52
53 int
_yppasswd(char * oldpass,struct x_passwd * newpw)54 _yppasswd(char *oldpass, struct x_passwd *newpw)
55 {
56 char *server;
57 char *domain;
58 int rval, result;
59 struct yppasswd yppasswd;
60
61 yppasswd.newpw = *newpw;
62 yppasswd.oldpass = oldpass;
63
64 if (yp_get_default_domain(&domain))
65 return (-1);
66
67 if (yp_master(domain, "passwd.byname", &server))
68 return(-1);
69
70 rval = getrpcport(server, YPPASSWDPROG,
71 YPPASSWDPROC_UPDATE, IPPROTO_UDP);
72
73 if (rval == 0 || rval >= IPPORT_RESERVED) {
74 free(server);
75 return(-1);
76 }
77
78 rval = callrpc(server, YPPASSWDPROG, YPPASSWDVERS, YPPASSWDPROC_UPDATE,
79 (xdrproc_t)xdr_yppasswd, (char *)&yppasswd,
80 (xdrproc_t)xdr_int, (char *)&result);
81
82 free(server);
83 if (rval || result)
84 return(-1);
85 else
86 return(0);
87 }
88