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
|
/*
* Copyright (c) 1996, 1998 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM 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 char rcsid[] = "$Id: getgrent.c,v 1.13 1998/03/21 00:59:47 halley Exp $";
#endif
/* Imports */
#include "port_before.h"
#ifndef WANT_IRS_GR
static int __bind_irs_gr_unneeded;
#else
#include <sys/types.h>
#include <errno.h>
#include <grp.h>
#include <stdio.h>
#include <irs.h>
#include "port_after.h"
#include "irs_data.h"
/* Forward */
static struct irs_gr * init(void);
void endgrent(void);
/* Public */
struct group *
getgrent() {
struct irs_gr *gr = init();
if (!gr)
return (NULL);
net_data.gr_last = (*gr->next)(gr);
return (net_data.gr_last);
}
struct group *
getgrnam(const char *name) {
struct irs_gr *gr = init();
if (!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(gid_t gid) {
struct irs_gr *gr = init();
if (!gr)
return (NULL);
if (net_data.gr_stayopen && net_data.gr_last &&
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(int stayopen) {
struct irs_gr *gr = init();
if (!gr)
return (0);
(*gr->rewind)(gr);
net_data.gr_stayopen = (stayopen != 0);
return (1);
}
#ifdef SETGRENT_VOID
void
setgrent() {
(void)setgroupent(0);
}
#else
int
setgrent() {
return (setgroupent(0));
}
#endif /* SETGRENT_VOID */
void
endgrent() {
struct irs_gr *gr = init();
if (gr != NULL)
(*gr->minimize)(gr);
}
int
getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroups) {
struct irs_gr *gr = init();
if (!gr) {
*ngroups = 0;
return (-1);
}
return ((*gr->list)(gr, name, basegid, groups, ngroups));
}
/* Private */
static struct irs_gr *
init() {
if (!net_data_init())
goto error;
if (!net_data.gr)
net_data.gr = (*net_data.irs->gr_map)(net_data.irs);
if (!net_data.gr) {
error:
errno = EIO;
return (NULL);
}
return (net_data.gr);
}
#endif /* WANT_IRS_GR */
|
