/* unlinkat -- Remove a name relative to an open directory.  Hurd version.

   Copyright (C) 2006-2018 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 <unistd.h>

#include <hurd.h>

#include <hurd/fd.h>

/* Remove the link named NAME.  */

int

unlinkat (int fd, const char *name, int flag)

{

  error_t err;

  file_t dir;

  const char *file;

  if ((flag &~ AT_REMOVEDIR) != 0)

    {

      __set_errno (EINVAL);

      return -1;

    }

  dir = __directory_name_split_at (fd, name, (char **) &file;;

  if (dir == MACH_PORT_NULL)

    return -1;

  err = ((flag & AT_REMOVEDIR) ? __dir_rmdir : __dir_unlink) (dir, file);

  __mach_port_deallocate (__mach_task_self (), dir);

  if (err)

    return __hurd_fail (err);

  return 0;

}