1 /* Linux openat syscall implementation, LFS, non-cancellable.
2    Copyright (C) 2018-2021 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #include <fcntl.h>
20 #include <stdarg.h>
21 
22 #include <sysdep-cancel.h>
23 #include <not-cancel.h>
24 
25 #ifdef __OFF_T_MATCHES_OFF64_T
26 # define EXTRA_OPEN_FLAGS 0
27 #else
28 # define EXTRA_OPEN_FLAGS O_LARGEFILE
29 #endif
30 
31 int
__openat64_nocancel(int fd,const char * file,int oflag,...)32 __openat64_nocancel (int fd, const char *file, int oflag, ...)
33 {
34   mode_t mode = 0;
35   if (__OPEN_NEEDS_MODE (oflag))
36     {
37       va_list arg;
38       va_start (arg, oflag);
39       mode = va_arg (arg, mode_t);
40       va_end (arg);
41     }
42 
43   return INLINE_SYSCALL_CALL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS,
44 			      mode);
45 }
46 hidden_def (__openat64_nocancel)
47 
48 #ifdef __OFF_T_MATCHES_OFF64_T
49 strong_alias (__openat64_nocancel, __openat_nocancel)
50 hidden_def (__openat_nocancel)
51 #endif
52