glibc/sysdeps/unix/sysv/linux/renameat2.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

46 lines
1.6 KiB
C

/* Linux implementation for renameat2 function.
Copyright (C) 2018-2021 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);
/* 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;
/* No kernel support for renameat2. All flags are unknown. */
__set_errno (EINVAL);
return -1;
#endif
}
libc_hidden_def (__renameat2)
weak_alias (__renameat2, renameat2)