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 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. */ |
34 | int |
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 | |
51 | strong_alias (__libc_open64, __open64) |
52 | libc_hidden_weak (__open64) |
53 | weak_alias (__libc_open64, open64) |
54 | |
55 | # if !IS_IN (rtld) |
56 | int |
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 |
73 | strong_alias (__libc_open64, __open64_nocancel) |
74 | #endif |
75 | libc_hidden_def (__open64_nocancel) |
76 | |
77 | #ifdef __OFF_T_MATCHES_OFF64_T |
78 | strong_alias (__libc_open64, __libc_open) |
79 | strong_alias (__libc_open64, __open) |
80 | libc_hidden_weak (__open) |
81 | weak_alias (__libc_open64, open) |
82 | |
83 | strong_alias (__open64_nocancel, __open_nocancel) |
84 | libc_hidden_weak (__open_nocancel) |
85 | #endif |
86 | |