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 #pragma ident "%Z%%M% %I% %E% SMI"
29
30 #include <ctype.h>
31 #include <netdb.h>
32 #include <stdio.h>
33 #include <string.h>
34 #include <netinet/in.h>
35 #include <arpa/inet.h>
36 #include <sys/socket.h>
37 #include "nis_common.h"
38 #include <stdlib.h>
39
40
41 static nss_status_t
getbyname(be,a)42 getbyname(be, a)
43 nis_backend_ptr_t be;
44 void *a;
45 {
46 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
47 nss_status_t res;
48
49 const char *s;
50 char c;
51
52 for (s = argp->key.ipnode.name; (c = *s) != '\0'; s++) {
53 if (isupper(c)) {
54 char *copy;
55 char *mung;
56
57 if ((copy = strdup(argp->key.ipnode.name)) == 0) {
58 return (NSS_UNAVAIL);
59 }
60 for (mung = copy + (s - argp->key.ipnode.name);
61 (c = *mung) != '\0'; mung++) {
62 if (isupper(c)) {
63 *mung = _tolower(c);
64 }
65 }
66 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byname",
67 copy, 0);
68 if (res != NSS_SUCCESS)
69 argp->h_errno = __nss2herrno(res);
70 free(copy);
71 return (res);
72 }
73 }
74 res = _nss_nis_lookup(be, argp, 1,
75 "ipnodes.byname", argp->key.ipnode.name, 0);
76 if (res != NSS_SUCCESS)
77 argp->h_errno = __nss2herrno(res);
78 return (res);
79 }
80
81 static nss_status_t
getbyaddr(be,a)82 getbyaddr(be, a)
83 nis_backend_ptr_t be;
84 void *a;
85 {
86 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
87 struct in6_addr addr;
88 char buf[INET6_ADDRSTRLEN + 1];
89 nss_status_t res;
90
91 /* === Do we really want to be this pedantic? */
92 if (argp->key.hostaddr.type != AF_INET6 ||
93 argp->key.hostaddr.len != sizeof (addr)) {
94 return (NSS_NOTFOUND);
95 }
96 (void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr));
97 if (IN6_IS_ADDR_V4MAPPED(&addr)) {
98 if (inet_ntop(AF_INET, (void *) &addr.s6_addr[12],
99 (void *)buf, INET_ADDRSTRLEN) == NULL) {
100 return (NSS_NOTFOUND);
101 }
102 } else {
103 if (inet_ntop(AF_INET6, (void *)&addr, (void *)buf,
104 INET6_ADDRSTRLEN) == NULL)
105 return (NSS_NOTFOUND);
106 }
107
108 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byaddr", buf, 0);
109 if (res != NSS_SUCCESS)
110 argp->h_errno = __nss2herrno(res);
111 return (res);
112 }
113
114
115 static nis_backend_op_t ipnodes_ops[] = {
116 _nss_nis_destr,
117 _nss_nis_endent,
118 _nss_nis_setent,
119 _nss_nis_getent_netdb,
120 getbyname,
121 getbyaddr
122 };
123
124 /*ARGSUSED*/
125 nss_backend_t *
_nss_nis_ipnodes_constr(dummy1,dummy2,dummy3)126 _nss_nis_ipnodes_constr(dummy1, dummy2, dummy3)
127 const char *dummy1, *dummy2, *dummy3;
128 {
129 return (_nss_nis_constr(ipnodes_ops,
130 sizeof (ipnodes_ops) / sizeof (ipnodes_ops[0]),
131 "ipnodes.byaddr"));
132 }
133