mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 11:11:04 +00:00
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Linux implementation for renameat2 function.
|
|
Copyright (C) 2018-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <sysdep.h>
|
|
|
|
int
|
|
__renameat2 (int oldfd, const char *old, int newfd, const char *new,
|
|
unsigned int flags)
|
|
{
|
|
#if !defined (__NR_renameat) || defined (__ASSUME_RENAMEAT2)
|
|
return INLINE_SYSCALL_CALL (renameat2, oldfd, old, newfd, new, flags);
|
|
#else
|
|
if (flags == 0)
|
|
return __renameat (oldfd, old, newfd, new);
|
|
# ifdef __NR_renameat2
|
|
/* For non-zero flags, try the renameat2 system call. */
|
|
int ret = INLINE_SYSCALL_CALL (renameat2, oldfd, old, newfd, new, flags);
|
|
if (ret != -1 || errno != ENOSYS)
|
|
/* Preserve non-error/non-ENOSYS return values. */
|
|
return ret;
|
|
# endif
|
|
/* No kernel (header) support for renameat2. All flags are
|
|
unknown. */
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
#endif
|
|
}
|
|
libc_hidden_def (__renameat2)
|
|
weak_alias (__renameat2, renameat2)
|