dirent/readdir_r.c

   1 /* readdir_r - Reentrant version of readdir.
   2 Copyright (C) 1996 Free Software Foundation, Inc.
   3 This file is part of the GNU C Library.
   4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
   5
   6 The GNU C Library is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU Library General Public License as
   8 published by the Free Software Foundation; either version 2 of the
   9 License, or (at your option) any later version.
  10
  11 The GNU C Library is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 Library General Public License for more details.
  15
  16 You should have received a copy of the GNU Library General Public
  17 License along with the GNU C Library; see the file COPYING.LIB.  If
  18 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include <dirent.h>
  22
  23 /* Some systems have reentrancy problems with their `readdir'
  24    implementation so they have an additional `readdir_r' version.  The
  25    GNU version does not have these problems but for compatibility
  26    reasons we provide this function.  It is simply a wrapper around
  27    the normal function.
  28
  29    The actual definition of this functions varies very strong from
  30    system to system.  We chose to follow the POSIX version.  */
  31 int
  32 readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result)
  33 {
  34   *result = readdir (dirp);
  35
  36   return *result != NULL ? 0 : -1;
  37 }