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. */ |
26 | int |
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 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 | |
47 | strong_alias (__libc_openat64, __openat64) |
48 | libc_hidden_weak (__openat64) |
49 | weak_alias (__libc_openat64, openat64) |
50 | |
51 | #ifdef __OFF_T_MATCHES_OFF64_T |
52 | strong_alias (__libc_openat64, __openat) |
53 | libc_hidden_weak (__openat) |
54 | weak_alias (__libc_openat64, openat) |
55 | #endif |
56 | |