yp_passwd.c revision 26214 
1/*
2 * Copyright (c) 1995, 1996
3 *	Bill Paul <wpaul@ctr.columbia.edu>.  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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	$Id: yp_passwd.c,v 1.1 1996/11/16 20:52:13 wpaul Exp $
33 */
34
35#include <stdlib.h>
36#include <rpc/rpc.h>
37#include <rpcsvc/yp_prot.h>
38#include <rpcsvc/ypclnt.h>
39#include <rpcsvc/yppasswd.h>
40#include <netinet/in.h>
41
42#ifndef LINT
43static const char rcsid[] = "$Id: yp_passwd.c,v 1.1 1996/11/16 20:52:13 wpaul Exp $";
44#endif
45
46/*
47 * XXX <rpcsvc/yppasswd.h> does a typedef that makes 'yppasswd'
48 * a type of struct yppasswd. This leads to a namespace collision:
49 * gcc will not let you have a type called yppasswd and a function
50 * called yppasswd(). In order to get around this, we call the
51 * actual function _yppasswd() and put a macro called yppasswd()
52 * in yppasswd.h which calls the underlying function, thereby
53 * fooling gcc.
54 */
55
56int _yppasswd(oldpass, newpw)
57	char *oldpass;
58	struct x_passwd *newpw;
59{
60	char *server;
61	char *domain;
62	int rval, result;
63	struct yppasswd yppasswd;
64
65	yppasswd.newpw = *newpw;
66	yppasswd.oldpass = oldpass;
67
68	if (yp_get_default_domain(&domain))
69		return (-1);
70
71	if (yp_master(domain, "passwd.byname", &server))
72		return(-1);
73
74	rval = getrpcport(server, YPPASSWDPROG,
75				YPPASSWDPROC_UPDATE, IPPROTO_UDP);
76
77	if (rval == 0 || rval >= IPPORT_RESERVED) {
78		free(server);
79		return(-1);
80	}
81
82	rval = callrpc(server, YPPASSWDPROG, YPPASSWDVERS, YPPASSWDPROC_UPDATE,
83		       xdr_yppasswd, (char *)&yppasswd, xdr_int, &result);
84
85	free(server);
86	if (rval || result)
87		return(-1);
88	else
89		return(0);
90}
91