1/* Syscall wrapper that do not set errno. Linux version.
2 Copyright (C) 2017-2018 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 <http://www.gnu.org/licenses/>. */
18
19/* This function is used on maybe_enable_malloc_check (elf/dl-tunables.c)
20 and to avoid having to build/use multiple versions if stack protection
21 in enabled it is defined as inline. */
22static inline int
23__access_noerrno (const char *pathname, int mode)
24{
25 int res;
26 INTERNAL_SYSCALL_DECL (err);
27#ifdef __NR_access
28 res = INTERNAL_SYSCALL_CALL (access, err, pathname, mode);
29#else
30 res = INTERNAL_SYSCALL_CALL (faccessat, err, AT_FDCWD, pathname, mode);
31#endif
32 if (INTERNAL_SYSCALL_ERROR_P (res, err))
33 return INTERNAL_SYSCALL_ERRNO (res, err);
34 return 0;
35}
36