sysdeps/mach/hurd/readdir64_r.c

   1 /* Copyright (C) 2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <dirent.h>
  20 #include <limits.h>
  21 #include <stddef.h>
  22 #include <string.h>
  23
  24 /* Read a directory entry from DIRP.  */
  25 int
  26 __readdir64_r (DIR *dirp, struct dirent64 *entry, struct dirent64 **result)
  27 {
  28   struct dirent *result32;
  29   union
  30   {
  31     struct dirent d;
  32     char b[offsetof (struct dirent, d_name) + UCHAR_MAX + 1];
  33   } u;
  34   int err;
  35
  36   err = __readdir_r (dirp, &u.d, &result32);
  37   if (result32)
  38     {
  39       entry->d_fileno = result32->d_fileno;
  40       entry->d_reclen = result32->d_reclen;
  41       entry->d_type = result32->d_type;
  42       entry->d_namlen = result32->d_namlen;
  43       memcpy (entry->d_name, result32->d_name, result32->d_namlen + 1);
  44       *result = entry;
  45     }
  46   else
  47     *result = NULL;
  48
  49   return err;
  50 }
  51
  52 weak_alias(__readdir64_r, readdir64_r)