1 /* $NetBSD: getnetgrent.c,v 1.1.1.2 2012/09/09 16:07:55 christos Exp $ */
2
3 /*
4 * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (C) 1996-1999, 2001, 2003 Internet Software Consortium.
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #if defined(LIBC_SCCS) && !defined(lint)
21 static const char rcsid[] = "Id: getnetgrent.c,v 1.6 2008/11/14 02:36:51 marka Exp ";
22 #endif /* LIBC_SCCS and not lint */
23
24 /* Imports */
25
26 #include "port_before.h"
27
28 #if !defined(__BIND_NOSTATIC)
29
30 #include <sys/types.h>
31
32 #include <netinet/in.h>
33 #include <arpa/nameser.h>
34
35 #include <errno.h>
36 #include <resolv.h>
37 #include <stdio.h>
38
39 #include <irs.h>
40
41 #include "port_after.h"
42
43 #include "irs_data.h"
44
45 /* Forward */
46
47 static struct net_data *init(void);
48
49
50 /* Public */
51
52 #ifndef SETNETGRENT_ARGS
53 #define SETNETGRENT_ARGS const char *netgroup
54 #endif
55 void
setnetgrent(SETNETGRENT_ARGS)56 setnetgrent(SETNETGRENT_ARGS) {
57 struct net_data *net_data = init();
58
59 setnetgrent_p(netgroup, net_data);
60 }
61
62 void
endnetgrent(void)63 endnetgrent(void) {
64 struct net_data *net_data = init();
65
66 endnetgrent_p(net_data);
67 }
68
69 #ifndef INNETGR_ARGS
70 #define INNETGR_ARGS const char *netgroup, const char *host, \
71 const char *user, const char *domain
72 #endif
73 int
innetgr(INNETGR_ARGS)74 innetgr(INNETGR_ARGS) {
75 struct net_data *net_data = init();
76
77 return (innetgr_p(netgroup, host, user, domain, net_data));
78 }
79
80 int
getnetgrent(NGR_R_CONST char ** host,NGR_R_CONST char ** user,NGR_R_CONST char ** domain)81 getnetgrent(NGR_R_CONST char **host, NGR_R_CONST char **user,
82 NGR_R_CONST char **domain)
83 {
84 struct net_data *net_data = init();
85 const char *ch, *cu, *cd;
86 int ret;
87
88 ret = getnetgrent_p(&ch, &cu, &cd, net_data);
89 if (ret != 1)
90 return (ret);
91
92 DE_CONST(ch, *host);
93 DE_CONST(cu, *user);
94 DE_CONST(cd, *domain);
95 return (ret);
96 }
97
98 /* Shared private. */
99
100 void
setnetgrent_p(const char * netgroup,struct net_data * net_data)101 setnetgrent_p(const char *netgroup, struct net_data *net_data) {
102 struct irs_ng *ng;
103
104 if ((net_data != NULL) && ((ng = net_data->ng) != NULL))
105 (*ng->rewind)(ng, netgroup);
106 }
107
108 void
endnetgrent_p(struct net_data * net_data)109 endnetgrent_p(struct net_data *net_data) {
110 struct irs_ng *ng;
111
112 if (!net_data)
113 return;
114 if ((ng = net_data->ng) != NULL)
115 (*ng->close)(ng);
116 net_data->ng = NULL;
117 }
118
119 int
innetgr_p(const char * netgroup,const char * host,const char * user,const char * domain,struct net_data * net_data)120 innetgr_p(const char *netgroup, const char *host,
121 const char *user, const char *domain,
122 struct net_data *net_data) {
123 struct irs_ng *ng;
124
125 if (!net_data || !(ng = net_data->ng))
126 return (0);
127 return ((*ng->test)(ng, netgroup, host, user, domain));
128 }
129
130 int
getnetgrent_p(const char ** host,const char ** user,const char ** domain,struct net_data * net_data)131 getnetgrent_p(const char **host, const char **user, const char **domain,
132 struct net_data *net_data ) {
133 struct irs_ng *ng;
134
135 if (!net_data || !(ng = net_data->ng))
136 return (0);
137 return ((*ng->next)(ng, host, user, domain));
138 }
139
140 /* Private */
141
142 static struct net_data *
init(void)143 init(void) {
144 struct net_data *net_data;
145
146 if (!(net_data = net_data_init(NULL)))
147 goto error;
148 if (!net_data->ng) {
149 net_data->ng = (*net_data->irs->ng_map)(net_data->irs);
150 if (!net_data->ng) {
151 error:
152 errno = EIO;
153 return (NULL);
154 }
155 }
156
157 return (net_data);
158 }
159
160 #endif /*__BIND_NOSTATIC*/
161
162 /*! \file */
163