/* xmknod call using old-style Unix mknod system call.

   Copyright (C) 1991-2018 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

   <http://www.gnu.org/licenses/>.  */

#include <errno.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/sysmacros.h>

#include <sysdep.h>

#include <sys/syscall.h>

/* Create a device file named PATH, with permission and special bits MODE

   and device number DEV (which can be constructed from major and minor

   device numbers with the `makedev' macro above).  */

int

__xmknod (int vers, const char *path, mode_t mode, dev_t *dev)

{

  unsigned long long int k_dev;

  if (vers != _MKNOD_VER)

    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);

  /* We must convert the value to dev_t type used by the kernel.  */

  k_dev =  (*dev) & ((1ULL << 32) - 1);

  if (k_dev != *dev)

    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);

  return INLINE_SYSCALL (mknod, 3, path, mode, (unsigned int) k_dev);

}

weak_alias (__xmknod, _xmknod)

libc_hidden_def (__xmknod)