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
|
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* fcntl definition for NOLIBC
* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
*/
/* make sure to include all global symbols */
#include "nolibc.h"
#ifndef _NOLIBC_FCNTL_H
#define _NOLIBC_FCNTL_H
#include "arch.h"
#include "types.h"
#include "sys.h"
#define __nolibc_open_flags(_flags) ((_flags) | O_LARGEFILE)
#define __nolibc_open_mode(_flags) \
({ \
mode_t _mode; \
va_list args; \
\
va_start(args, (_flags)); \
_mode = va_arg(args, mode_t); \
va_end(args); \
\
_mode; \
})
/*
* int openat(int dirfd, const char *path, int flags[, mode_t mode]);
*/
static __attribute__((unused))
int _sys_openat(int dirfd, const char *path, int flags, mode_t mode)
{
return __nolibc_syscall4(__NR_openat, dirfd, path, flags, mode);
}
static __attribute__((unused))
int openat(int dirfd, const char *path, int flags, ...)
{
return __sysret(_sys_openat(dirfd, path, __nolibc_open_flags(flags),
__nolibc_open_mode(flags)));
}
/*
* int open(const char *path, int flags[, mode_t mode]);
*/
static __attribute__((unused))
int _sys_open(const char *path, int flags, mode_t mode)
{
return __nolibc_syscall4(__NR_openat, AT_FDCWD, path, flags, mode);
}
static __attribute__((unused))
int open(const char *path, int flags, ...)
{
return __sysret(_sys_open(path, __nolibc_open_flags(flags), __nolibc_open_mode(flags)));
}
/*
* int creat(const char *path, mode_t mode);
*/
static __attribute__((unused))
int creat(const char *path, mode_t mode)
{
return open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
}
#endif /* _NOLIBC_FCNTL_H */
|
