glibc/sysdeps/unix/sysv/linux/open_by_handle_at.c

38 lines
1.2 KiB
C

/* Obtain handle for an open file via a handle. Linux implementation.
Copyright (C) 2017-2020 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 <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sysdep-cancel.h>
int
open_by_handle_at (int mount_fd, struct file_handle *handle, int flags)
{
#ifdef __NR_open_by_handle_at
return SYSCALL_CANCEL (open_by_handle_at, mount_fd, handle, flags);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_open_by_handle_at
stub_warning (open_by_handle_at)
#endif