1/* Copyright (C) 1991-2018 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 <sys/types.h>
19#include <sys/stat.h>
20#include <fcntl.h>
21#include <stdarg.h>
22
23#include <sysdep-cancel.h>
24#include <not-cancel.h>
25
26#ifdef __OFF_T_MATCHES_OFF64_T
27# define EXTRA_OPEN_FLAGS 0
28#else
29# define EXTRA_OPEN_FLAGS O_LARGEFILE
30#endif
31
32/* Open FILE with access OFLAG. If O_CREAT or O_TMPFILE is in OFLAG,
33 a third argument is the file protection. */
34int
35__libc_open64 (const char *file, int oflag, ...)
36{
37 int mode = 0;
38
39 if (__OPEN_NEEDS_MODE (oflag))
40 {
41 va_list arg;
42 va_start (arg, oflag);
43 mode = va_arg (arg, int);
44 va_end (arg);
45 }
46
47 return SYSCALL_CANCEL (openat, AT_FDCWD, file, oflag | EXTRA_OPEN_FLAGS,
48 mode);
49}
50
51strong_alias (__libc_open64, __open64)
52libc_hidden_weak (__open64)
53weak_alias (__libc_open64, open64)
54
55# if !IS_IN (rtld)
56int
57__open64_nocancel (const char *file, int oflag, ...)
58{
59 int mode = 0;
60
61 if (__OPEN_NEEDS_MODE (oflag))
62 {
63 va_list arg;
64 va_start (arg, oflag);
65 mode = va_arg (arg, int);
66 va_end (arg);
67 }
68
69 return INLINE_SYSCALL_CALL (openat, AT_FDCWD, file, oflag | EXTRA_OPEN_FLAGS,
70 mode);
71}
72#else
73strong_alias (__libc_open64, __open64_nocancel)
74#endif
75libc_hidden_def (__open64_nocancel)
76
77#ifdef __OFF_T_MATCHES_OFF64_T
78strong_alias (__libc_open64, __libc_open)
79strong_alias (__libc_open64, __open)
80libc_hidden_weak (__open)
81weak_alias (__libc_open64, open)
82
83strong_alias (__open64_nocancel, __open_nocancel)
84libc_hidden_weak (__open_nocancel)
85#endif
86