xref: /titanic_52/usr/src/lib/nsswitch/files/common/getnetent.c (revision fb3fb4f3d76d55b64440afd0af72775dfad3bd1d)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  *
24  *	Copyright (c) 1988-1995 Sun Microsystems Inc
25  *	All Rights Reserved.
26  *
27  *	files/getnetent.c -- "files" backend for nsswitch "networks" database
28  */
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 
33 #include <netdb.h>
34 #include "files_common.h"
35 #include <strings.h>
36 
37 static int
38 check_name(args)
39 	nss_XbyY_args_t	*args;
40 {
41 	struct netent	*net = (struct netent *)args->returnval;
42 	const char		*name = args->key.name;
43 	char			**aliasp;
44 
45 	if (strcmp(net->n_name, name) == 0)
46 		return (1);
47 	for (aliasp = net->n_aliases; *aliasp != 0; aliasp++) {
48 		if (strcmp(*aliasp, name) == 0)
49 			return (1);
50 	}
51 	return (0);
52 }
53 
54 static nss_status_t
55 getbyname(be, a)
56 	files_backend_ptr_t	be;
57 	void		*a;
58 {
59 	nss_XbyY_args_t		*argp = (nss_XbyY_args_t *) a;
60 
61 	return (_nss_files_XY_all(be, argp, 1, argp->key.name, check_name));
62 }
63 
64 static int
65 check_addr(args)
66 	nss_XbyY_args_t	*args;
67 {
68 	struct netent	*net = (struct netent *)args->returnval;
69 
70 	return ((net->n_addrtype == args->key.netaddr.type) &&
71 		(net->n_net == args->key.netaddr.net));
72 }
73 
74 static nss_status_t
75 getbyaddr(be, a)
76 	files_backend_ptr_t	be;
77 	void		*a;
78 {
79 	nss_XbyY_args_t		*argp = (nss_XbyY_args_t *) a;
80 
81 	return (_nss_files_XY_all(be, argp, 1, 0, check_addr));
82 }
83 
84 static files_backend_op_t net_ops[] = {
85 	_nss_files_destr,
86 	_nss_files_endent,
87 	_nss_files_setent,
88 	_nss_files_getent_netdb,
89 	getbyname,
90 	getbyaddr
91 };
92 
93 /*ARGSUSED*/
94 nss_backend_t *
95 _nss_files_networks_constr(dummy1, dummy2, dummy3)
96 	const char  *dummy1, *dummy2, *dummy3;
97 {
98 	return (_nss_files_constr(net_ops,
99 				sizeof (net_ops) / sizeof (net_ops[0]),
100 				_PATH_NETWORKS,
101 				NSS_LINELEN_NETWORKS,
102 				NULL));
103 }
104