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
|
/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
#include <sysdep.h>
#include <sys/syscall.h>
/* Create a device file named PATH relative to FD, with permission and
special bits MODE and device number DEV (which can be constructed
from major and minor device numbers with the `makedev' macro above). */
int
__xmknodat (int vers, int fd, const char *file, mode_t mode, dev_t *dev)
{
if (vers != _MKNOD_VER)
{
__set_errno (EINVAL);
return -1;
}
/* We must convert the value to dev_t type used by the kernel. */
unsigned long long int k_dev = (*dev) & ((1ULL << 32) - 1);
if (k_dev != *dev)
{
__set_errno (EINVAL);
return -1;
}
return INLINE_SYSCALL (mknodat, 4, fd, file, mode, (unsigned int) k_dev);
}
libc_hidden_def (__xmknodat)
|
