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
|
/*
SSSD
io.c
Authors:
Lukas Slebodnik <lslebodn@redhat.com>
Copyright (C) 2012 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "util/io.h"
/* CAUTION:
* This file have to be minimalist and cannot include DEBUG macros
* or header file util.h.
*/
int sss_open_cloexec(const char *pathname, int flags, int *ret)
{
int fd;
int oflags;
oflags = flags;
#ifdef O_CLOEXEC
oflags |= O_CLOEXEC;
#endif
errno = 0;
fd = open(pathname, oflags);
if (fd == -1) {
if (ret) {
*ret = errno;
}
return -1;
}
#ifndef O_CLOEXEC
int v;
v = fcntl(fd, F_GETFD, 0);
/* we ignore an error, it's not fatal and there is nothing we
* can do about it anyways */
(void)fcntl(fd, F_SETFD, v | FD_CLOEXEC);
#endif
return fd;
}
int sss_openat_cloexec(int dir_fd, const char *pathname, int flags, int *ret)
{
int fd;
int oflags;
oflags = flags;
#ifdef O_CLOEXEC
oflags |= O_CLOEXEC;
#endif
errno = 0;
fd = openat(dir_fd, pathname, oflags);
if (fd == -1) {
if (ret) {
*ret = errno;
}
return -1;
}
#ifndef O_CLOEXEC
int v;
v = fcntl(fd, F_GETFD, 0);
/* we ignore an error, it's not fatal and there is nothing we
* can do about it anyways */
(void)fcntl(fd, F_SETFD, v | FD_CLOEXEC);
#endif
return fd;
}
|
