1/* Copyright (C) 2007-2017 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#include <fcntl.h>
19#include <stdarg.h>
20
21#include <sysdep-cancel.h>
22
23/* Open FILE with access OFLAG. Interpret relative paths relative to
24 the directory associated with FD. If OFLAG includes O_CREAT or
25 O_TMPFILE, a fourth argument is the file protection. */
26int
27__libc_openat64 (int fd, const char *file, int oflag, ...)
28{
29 mode_t mode = 0;
30 if (__OPEN_NEEDS_MODE (oflag))
31 {
32 va_list arg;
33 va_start (arg, oflag);
34 mode = va_arg (arg, mode_t);
35 va_end (arg);
36 }
37
38#ifdef __OFF_T_MATCHES_OFF64_T
39# define EXTRA_OPEN_FLAGS 0
40#else
41# define EXTRA_OPEN_FLAGS O_LARGEFILE
42#endif
43
44 return SYSCALL_CANCEL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS, mode);
45}
46
47strong_alias (__libc_openat64, __openat64)
48libc_hidden_weak (__openat64)
49weak_alias (__libc_openat64, openat64)
50
51#ifdef __OFF_T_MATCHES_OFF64_T
52strong_alias (__libc_openat64, __openat)
53libc_hidden_weak (__openat)
54weak_alias (__libc_openat64, openat)
55#endif
56