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)
19 static 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
52 static void ng_close(struct irs_ng *);
53 static int ng_next(struct irs_ng *, const char **,
54 const char **, const char **);
55 static int ng_test(struct irs_ng *,
56 const char *, const char *,
57 const char *, const char *);
58 static void ng_rewind(struct irs_ng *, const char *);
59 static void ng_minimize(struct irs_ng *);
60
61 /* Public. */
62
63 struct irs_ng *
irs_nul_ng(struct irs_acc * this)64 irs_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
85 static void
ng_close(struct irs_ng * this)86 ng_close(struct irs_ng *this) {
87 memput(this, sizeof *this);
88 }
89
90 /* ARGSUSED */
91 static int
ng_next(struct irs_ng * this,const char ** host,const char ** user,const char ** domain)92 ng_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
103 static int
ng_test(struct irs_ng * this,const char * name,const char * user,const char * host,const char * domain)104 ng_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
116 static void
ng_rewind(struct irs_ng * this,const char * netgroup)117 ng_rewind(struct irs_ng *this, const char *netgroup) {
118 UNUSED(this);
119 UNUSED(netgroup);
120 /* NOOP */
121 }
122
123 static void
ng_minimize(struct irs_ng * this)124 ng_minimize(struct irs_ng *this) {
125 UNUSED(this);
126 /* NOOP */
127 }
128