/* Copyright (C) 1993-2018 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 <limits.h>

#include <stddef.h>

#include <string.h>

#include <dirent.h>

#include <unistd.h>

#include <sys/types.h>

#include <hurd.h>

#include <hurd/fd.h>

#include "dirstream.h"

/* Read a directory entry from DIRP.  */

int

__readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result)

{

  if (sizeof (struct dirent64) == sizeof (struct dirent))

    /* We should in fact just be an alias to readdir64_r on this machine.  */

    return __readdir64_r (dirp,

			  (struct dirent64 *) entry,

			  (struct dirent64 **) result);

  struct dirent64 *result64;

  union

  {

    struct dirent64 d;

    char b[offsetof (struct dirent64, d_name) + UCHAR_MAX + 1];

  } u;

  int err;

  err = __readdir64_r (dirp, &u.d, &result64);

  if (result64)

    {

      entry->d_fileno = result64->d_fileno;

      entry->d_reclen = result64->d_reclen;

      entry->d_type = result64->d_type;

      entry->d_namlen = result64->d_namlen;

      memcpy (entry->d_name, result64->d_name, result64->d_namlen + 1);

      *result = entry;

    }

  else

    *result = NULL;

  return err;

}

weak_alias (__readdir_r, readdir_r)