/* 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 <fcntl.h>

#include <stddef.h>

#include <sys/stat.h>

#include <sys/types.h>

/* Create a named pipe (FIFO) named PATH relative to FD with

   protections MODE.  */

int

mkfifoat (int fd, const char *path, mode_t mode)

{

  if (path == NULL)

    {

      __set_errno (EINVAL);

      return -1;

    }

  if (fd != AT_FDCWD && path[0] != '/')

    {

      /* Check FD is associated with a directory.  */

      struct stat64 st;

      if (__fxstat64 (_STAT_VER, fd, &st) != 0)

	return -1;

      if (!S_ISDIR (st.st_mode))

	{

	  __set_errno (ENOTDIR);

	  return -1;

	}

    }

  __set_errno (ENOSYS);

  return -1;

}

stub_warning (mkfifoat)