1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1996-1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#if !defined(LINT) && !defined(CODECENTER)
static const char rcsid[] = "$Id: getgrent.c,v 1.5 2005/04/27 04:56:24 sra Exp $";
#endif
/* Imports */
#include "port_before.h"
#if !defined(WANT_IRS_GR) || defined(__BIND_NOSTATIC)
static int __bind_irs_gr_unneeded;
#else
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <errno.h>
#include <grp.h>
#include <resolv.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <irs.h>
#include "port_after.h"
#include "irs_data.h"
/* Forward */
static struct net_data *init(void);
void endgrent(void);
/* Public */
struct group *
getgrent() {
struct net_data *net_data = init();
return (getgrent_p(net_data));
}
struct group *
getgrnam(const char *name) {
struct net_data *net_data = init();
return (getgrnam_p(name, net_data));
}
struct group *
getgrgid(gid_t gid) {
struct net_data *net_data = init();
return (getgrgid_p(gid, net_data));
}
int
setgroupent(int stayopen) {
struct net_data *net_data = init();
return (setgroupent_p(stayopen, net_data));
}
#ifdef SETGRENT_VOID
void
setgrent(void) {
struct net_data *net_data = init();
setgrent_p(net_data);
}
#else
int
setgrent(void) {
struct net_data *net_data = init();
return (setgrent_p(net_data));
}
#endif /* SETGRENT_VOID */
void
endgrent() {
struct net_data *net_data = init();
endgrent_p(net_data);
}
int
getgrouplist(GETGROUPLIST_ARGS) {
struct net_data *net_data = init();
return (getgrouplist_p(name, basegid, groups, ngroups, net_data));
}
/* Shared private. */
struct group *
getgrent_p(struct net_data *net_data) {
struct irs_gr *gr;
if (!net_data || !(gr = net_data->gr))
return (NULL);
net_data->gr_last = (*gr->next)(gr);
return (net_data->gr_last);
}
struct group *
getgrnam_p(const char *name, struct net_data *net_data) {
struct irs_gr *gr;
if (!net_data || !(gr = net_data->gr))
return (NULL);
if (net_data->gr_stayopen && net_data->gr_last &&
!strcmp(net_data->gr_last->gr_name, name))
return (net_data->gr_last);
net_data->gr_last = (*gr->byname)(gr, name);
if (!net_data->gr_stayopen)
endgrent();
return (net_data->gr_last);
}
struct group *
getgrgid_p(gid_t gid, struct net_data *net_data) {
struct irs_gr *gr;
if (!net_data || !(gr = net_data->gr))
return (NULL);
if (net_data->gr_stayopen && net_data->gr_last &&
(gid_t)net_data->gr_last->gr_gid == gid)
return (net_data->gr_last);
net_data->gr_last = (*gr->bygid)(gr, gid);
if (!net_data->gr_stayopen)
endgrent();
return (net_data->gr_last);
}
int
setgroupent_p(int stayopen, struct net_data *net_data) {
struct irs_gr *gr;
if (!net_data || !(gr = net_data->gr))
return (0);
(*gr->rewind)(gr);
net_data->gr_stayopen = (stayopen != 0);
if (stayopen == 0)
net_data_minimize(net_data);
return (1);
}
#ifdef SETGRENT_VOID
void
setgrent_p(struct net_data *net_data) {
(void)setgroupent_p(0, net_data);
}
#else
int
setgrent_p(struct net_data *net_data) {
return (setgroupent_p(0, net_data));
}
#endif /* SETGRENT_VOID */
void
endgrent_p(struct net_data *net_data) {
struct irs_gr *gr;
if ((net_data != NULL) && ((gr = net_data->gr) != NULL))
(*gr->minimize)(gr);
}
int
getgrouplist_p(const char *name, gid_t basegid, gid_t *groups, int *ngroups,
struct net_data *net_data) {
struct irs_gr *gr;
if (!net_data || !(gr = net_data->gr)) {
*ngroups = 0;
return (-1);
}
return ((*gr->list)(gr, name, basegid, groups, ngroups));
}
/* Private */
static struct net_data *
init() {
struct net_data *net_data;
if (!(net_data = net_data_init(NULL)))
goto error;
if (!net_data->gr) {
net_data->gr = (*net_data->irs->gr_map)(net_data->irs);
if (!net_data->gr || !net_data->res) {
error:
errno = EIO;
return (NULL);
}
(*net_data->gr->res_set)(net_data->gr, net_data->res,
NULL);
}
return (net_data);
}
#endif /* WANT_IRS_GR */
/*! \file */
|
