1/* Linux openat syscall implementation, LFS, non-cancellable.
2 Copyright (C) 2018-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <fcntl.h>
20#include <stdarg.h>
21
22#include <sysdep-cancel.h>
23#include <not-cancel.h>
24
25#ifdef __OFF_T_MATCHES_OFF64_T
26# define EXTRA_OPEN_FLAGS 0
27#else
28# define EXTRA_OPEN_FLAGS O_LARGEFILE
29#endif
30
31int
32__openat64_nocancel (int fd, const char *file, int oflag, ...)
33{
34 mode_t mode = 0;
35 if (__OPEN_NEEDS_MODE (oflag))
36 {
37 va_list arg;
38 va_start (arg, oflag);
39 mode = va_arg (arg, mode_t);
40 va_end (arg);
41 }
42
43 return INLINE_SYSCALL_CALL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS,
44 mode);
45}
46hidden_def (__openat64_nocancel)
47
48#ifdef __OFF_T_MATCHES_OFF64_T
49strong_alias (__openat64_nocancel, __openat_nocancel)
50hidden_def (__openat_nocancel)
51#endif
52