1 /*
2 * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1996-1999, 2001, 2003 Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or 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 WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #if defined(LIBC_SCCS) && !defined(lint)
19 static const char rcsid[] = "$Id: getnetgrent.c,v 1.6 2008/11/14 02:36:51 marka Exp $";
20 #endif /* LIBC_SCCS and not lint */
21
22 /* Imports */
23
24 #include "port_before.h"
25
26 #if !defined(__BIND_NOSTATIC)
27
28 #include <sys/types.h>
29
30 #include <netinet/in.h>
31 #include <arpa/nameser.h>
32
33 #include <errno.h>
34 #include <resolv.h>
35 #include <stdio.h>
36
37 #include <irs.h>
38
39 #include "port_after.h"
40
41 #include "irs_data.h"
42
43 /* Forward */
44
45 static struct net_data *init(void);
46
47
48 /* Public */
49
50 #ifndef SETNETGRENT_ARGS
51 #define SETNETGRENT_ARGS const char *netgroup
52 #endif
53 void
setnetgrent(SETNETGRENT_ARGS)54 setnetgrent(SETNETGRENT_ARGS) {
55 struct net_data *net_data = init();
56
57 setnetgrent_p(netgroup, net_data);
58 }
59
60 void
endnetgrent(void)61 endnetgrent(void) {
62 struct net_data *net_data = init();
63
64 endnetgrent_p(net_data);
65 }
66
67 #ifndef INNETGR_ARGS
68 #define INNETGR_ARGS const char *netgroup, const char *host, \
69 const char *user, const char *domain
70 #endif
71 int
innetgr(INNETGR_ARGS)72 innetgr(INNETGR_ARGS) {
73 struct net_data *net_data = init();
74
75 return (innetgr_p(netgroup, host, user, domain, net_data));
76 }
77
78 int
getnetgrent(NGR_R_CONST char ** host,NGR_R_CONST char ** user,NGR_R_CONST char ** domain)79 getnetgrent(NGR_R_CONST char **host, NGR_R_CONST char **user,
80 NGR_R_CONST char **domain)
81 {
82 struct net_data *net_data = init();
83 const char *ch, *cu, *cd;
84 int ret;
85
86 ret = getnetgrent_p(&ch, &cu, &cd, net_data);
87 if (ret != 1)
88 return (ret);
89
90 DE_CONST(ch, *host);
91 DE_CONST(cu, *user);
92 DE_CONST(cd, *domain);
93 return (ret);
94 }
95
96 /* Shared private. */
97
98 void
setnetgrent_p(const char * netgroup,struct net_data * net_data)99 setnetgrent_p(const char *netgroup, struct net_data *net_data) {
100 struct irs_ng *ng;
101
102 if ((net_data != NULL) && ((ng = net_data->ng) != NULL))
103 (*ng->rewind)(ng, netgroup);
104 }
105
106 void
endnetgrent_p(struct net_data * net_data)107 endnetgrent_p(struct net_data *net_data) {
108 struct irs_ng *ng;
109
110 if (!net_data)
111 return;
112 if ((ng = net_data->ng) != NULL)
113 (*ng->close)(ng);
114 net_data->ng = NULL;
115 }
116
117 int
innetgr_p(const char * netgroup,const char * host,const char * user,const char * domain,struct net_data * net_data)118 innetgr_p(const char *netgroup, const char *host,
119 const char *user, const char *domain,
120 struct net_data *net_data) {
121 struct irs_ng *ng;
122
123 if (!net_data || !(ng = net_data->ng))
124 return (0);
125 return ((*ng->test)(ng, netgroup, host, user, domain));
126 }
127
128 int
getnetgrent_p(const char ** host,const char ** user,const char ** domain,struct net_data * net_data)129 getnetgrent_p(const char **host, const char **user, const char **domain,
130 struct net_data *net_data ) {
131 struct irs_ng *ng;
132
133 if (!net_data || !(ng = net_data->ng))
134 return (0);
135 return ((*ng->next)(ng, host, user, domain));
136 }
137
138 /* Private */
139
140 static struct net_data *
init(void)141 init(void) {
142 struct net_data *net_data;
143
144 if (!(net_data = net_data_init(NULL)))
145 goto error;
146 if (!net_data->ng) {
147 net_data->ng = (*net_data->irs->ng_map)(net_data->irs);
148 if (!net_data->ng) {
149 error:
150 errno = EIO;
151 return (NULL);
152 }
153 }
154
155 return (net_data);
156 }
157
158 #endif /*__BIND_NOSTATIC*/
159
160 /*! \file */
161