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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 *
25 * nis/gethostent.c -- "nis" backend for nsswitch "ipnodes" database
26 */
27
28 #include <ctype.h>
29 #include <netdb.h>
30 #include <stdio.h>
31 #include <string.h>
32 #include <netinet/in.h>
33 #include <arpa/inet.h>
34 #include <sys/socket.h>
35 #include "nis_common.h"
36 #include <stdlib.h>
37
38
39 static nss_status_t
getbyname(be,a)40 getbyname(be, a)
41 nis_backend_ptr_t be;
42 void *a;
43 {
44 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
45 nss_status_t res;
46
47 const char *s;
48 char c;
49
50 for (s = argp->key.ipnode.name; (c = *s) != '\0'; s++) {
51 if (isupper(c)) {
52 char *copy;
53 char *mung;
54
55 if ((copy = strdup(argp->key.ipnode.name)) == 0) {
56 return (NSS_UNAVAIL);
57 }
58 for (mung = copy + (s - argp->key.ipnode.name);
59 (c = *mung) != '\0'; mung++) {
60 if (isupper(c)) {
61 *mung = _tolower(c);
62 }
63 }
64 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byname",
65 copy, 0);
66 if (res != NSS_SUCCESS)
67 argp->h_errno = __nss2herrno(res);
68 free(copy);
69 return (res);
70 }
71 }
72 res = _nss_nis_lookup(be, argp, 1,
73 "ipnodes.byname", argp->key.ipnode.name, 0);
74 if (res != NSS_SUCCESS)
75 argp->h_errno = __nss2herrno(res);
76 return (res);
77 }
78
79 static nss_status_t
getbyaddr(be,a)80 getbyaddr(be, a)
81 nis_backend_ptr_t be;
82 void *a;
83 {
84 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
85 struct in6_addr addr;
86 char buf[INET6_ADDRSTRLEN + 1];
87 nss_status_t res;
88
89 /* === Do we really want to be this pedantic? */
90 if (argp->key.hostaddr.type != AF_INET6 ||
91 argp->key.hostaddr.len != sizeof (addr)) {
92 return (NSS_NOTFOUND);
93 }
94 (void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr));
95 if (IN6_IS_ADDR_V4MAPPED(&addr)) {
96 if (inet_ntop(AF_INET, (void *) &addr.s6_addr[12],
97 (void *)buf, INET_ADDRSTRLEN) == NULL) {
98 return (NSS_NOTFOUND);
99 }
100 } else {
101 if (inet_ntop(AF_INET6, (void *)&addr, (void *)buf,
102 INET6_ADDRSTRLEN) == NULL)
103 return (NSS_NOTFOUND);
104 }
105
106 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byaddr", buf, 0);
107 if (res != NSS_SUCCESS)
108 argp->h_errno = __nss2herrno(res);
109 return (res);
110 }
111
112
113 static nis_backend_op_t ipnodes_ops[] = {
114 _nss_nis_destr,
115 _nss_nis_endent,
116 _nss_nis_setent,
117 _nss_nis_getent_netdb,
118 getbyname,
119 getbyaddr
120 };
121
122 /*ARGSUSED*/
123 nss_backend_t *
_nss_nis_ipnodes_constr(dummy1,dummy2,dummy3)124 _nss_nis_ipnodes_constr(dummy1, dummy2, dummy3)
125 const char *dummy1, *dummy2, *dummy3;
126 {
127 return (_nss_nis_constr(ipnodes_ops,
128 sizeof (ipnodes_ops) / sizeof (ipnodes_ops[0]),
129 "ipnodes.byaddr"));
130 }
131