1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * nis_misc.c
24 */
25
26 /*
27 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31
32 /*
33 * nis_misc.c
34 *
35 * This module contains miscellaneous library functions.
36 */
37
38 #include "mt.h"
39 #include <string.h>
40 #include <syslog.h>
41 #include <malloc.h>
42 #include <rpc/rpc.h>
43 #include <rpcsvc/nis.h>
44 #include <tiuser.h>
45 #include <netdir.h>
46 #include <netinet/in.h>
47 #include <strings.h>
48 #include "nis_clnt.h"
49
50 /*
51 * In the pre-IPv6 code, secure RPC has a bug such that it doesn't look
52 * at the endpoint 'family' field when selecting an endpoint to use for
53 * time synchronization. In order to protect that broken code from itself,
54 * we set the endpoint 'proto' to 'nc_netid' (i.e., "udp6" or "tcp6")
55 * rather than 'nc_proto' ("udp"/"tcp") if 'nc_family' is "inet6".
56 *
57 * The __nis_netconfig2ep() and __nis_netconfig_matches_ep() service
58 * functions below simplify endpoint manipulation by implementing the
59 * rules above.
60 */
61
62 void
__nis_netconfig2ep(struct netconfig * nc,endpoint * ep)63 __nis_netconfig2ep(struct netconfig *nc, endpoint *ep) {
64
65 if (nc == 0 || ep == 0)
66 return;
67
68 ep->family = strdup(nc->nc_protofmly);
69
70 if (strcmp(ep->family, "inet6") == 0) {
71 ep->proto = strdup(nc->nc_netid);
72 } else {
73 ep->proto = strdup(nc->nc_proto);
74 }
75 }
76
77 bool_t
__nis_netconfig_matches_ep(struct netconfig * nc,endpoint * ep)78 __nis_netconfig_matches_ep(struct netconfig *nc, endpoint *ep) {
79
80 if (nc == 0 || ep == 0)
81 return (FALSE);
82
83 if (strcmp(nc->nc_protofmly, ep->family) != 0)
84 return (FALSE);
85
86 if (strcmp(ep->family, "inet6") == 0)
87 return (strcmp(nc->nc_netid, ep->proto) == 0 ||
88 strcmp(nc->nc_proto, ep->proto) == 0);
89 else
90 return (strcmp(nc->nc_proto, ep->proto) == 0);
91
92 }
93