1/* Copyright (C) 2007-2018 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#include <not-cancel.h>
23
24#ifdef __OFF_T_MATCHES_OFF64_T
25# define EXTRA_OPEN_FLAGS 0
26#else
27# define EXTRA_OPEN_FLAGS O_LARGEFILE
28#endif
29
30/* Open FILE with access OFLAG. Interpret relative paths relative to
31 the directory associated with FD. If OFLAG includes O_CREAT or
32 O_TMPFILE, a fourth argument is the file protection. */
33int
34__libc_openat64 (int fd, const char *file, int oflag, ...)
35{
36 mode_t mode = 0;
37 if (__OPEN_NEEDS_MODE (oflag))
38 {
39 va_list arg;
40 va_start (arg, oflag);
41 mode = va_arg (arg, mode_t);
42 va_end (arg);
43 }
44
45 return SYSCALL_CANCEL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS, mode);
46}
47
48strong_alias (__libc_openat64, __openat64)
49libc_hidden_weak (__openat64)
50weak_alias (__libc_openat64, openat64)
51
52#if !IS_IN (rtld)
53int
54__openat64_nocancel (int fd, const char *file, int oflag, ...)
55{
56 mode_t mode = 0;
57 if (__OPEN_NEEDS_MODE (oflag))
58 {
59 va_list arg;
60 va_start (arg, oflag);
61 mode = va_arg (arg, mode_t);
62 va_end (arg);
63 }
64
65 return INLINE_SYSCALL_CALL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS,
66 mode);
67}
68#else
69strong_alias (__libc_openat64, __openat64_nocancel)
70#endif
71libc_hidden_def (__openat64_nocancel)
72
73#ifdef __OFF_T_MATCHES_OFF64_T
74strong_alias (__libc_openat64, __openat)
75libc_hidden_weak (__openat)
76weak_alias (__libc_openat64, openat)
77
78strong_alias (__openat64_nocancel, __openat_nocancel)
79#endif
80