1/*
2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (c) 1996,1999 by Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#if defined(LIBC_SCCS) && !defined(lint)
19static const char rcsid[] = "$Id: nul_ng.c,v 1.3 2005/04/27 04:56:34 sra Exp $";
20#endif
21
22/*! \file
23 * \brief
24 * nul_ng.c - the netgroup accessor null map
25 */
26
27#include "port_before.h"
28
29#include <sys/types.h>
30#include <netinet/in.h>
31#include <arpa/nameser.h>
32#include <resolv.h>
33
34#include <stdio.h>
35#include <string.h>
36#include <netdb.h>
37#include <ctype.h>
38#include <stdlib.h>
39#include <errno.h>
40
41#include <irs.h>
42#include <isc/memcluster.h>
43
44#include "port_after.h"
45
46#include "irs_p.h"
47#include "hesiod.h"
48#include "dns_p.h"
49
50/* Forward. */
51
52static void 		ng_close(struct irs_ng *);
53static int		ng_next(struct irs_ng *, const char **,
54				const char **, const char **);
55static int		ng_test(struct irs_ng *,
56 				const char *, const char *,
57				const char *, const char *);
58static void		ng_rewind(struct irs_ng *, const char *);
59static void		ng_minimize(struct irs_ng *);
60
61/* Public. */
62
63struct irs_ng *
64irs_nul_ng(struct irs_acc *this) {
65	struct irs_ng *ng;
66
67	UNUSED(this);
68
69	if (!(ng = memget(sizeof *ng))) {
70		errno = ENOMEM;
71		return (NULL);
72	}
73	memset(ng, 0x5e, sizeof *ng);
74	ng->private = NULL;
75	ng->close = ng_close;
76	ng->next = ng_next;
77	ng->test = ng_test;
78	ng->rewind = ng_rewind;
79	ng->minimize = ng_minimize;
80	return (ng);
81}
82
83/* Methods. */
84
85static void
86ng_close(struct irs_ng *this) {
87	memput(this, sizeof *this);
88}
89
90/* ARGSUSED */
91static int
92ng_next(struct irs_ng *this, const char **host, const char **user,
93	const char **domain)
94{
95	UNUSED(this);
96	UNUSED(host);
97	UNUSED(user);
98	UNUSED(domain);
99	errno = ENOENT;
100	return (-1);
101}
102
103static int
104ng_test(struct irs_ng *this, const char *name,
105	const char *user, const char *host, const char *domain)
106{
107	UNUSED(this);
108	UNUSED(name);
109	UNUSED(user);
110	UNUSED(host);
111	UNUSED(domain);
112	errno = ENODEV;
113	return (-1);
114}
115
116static void
117ng_rewind(struct irs_ng *this, const char *netgroup) {
118	UNUSED(this);
119	UNUSED(netgroup);
120	/* NOOP */
121}
122
123static void
124ng_minimize(struct irs_ng *this) {
125	UNUSED(this);
126	/* NOOP */
127}
128