sysdeps/unix/sysv/linux/getdirentries.c

   1 /* Copyright (C) 1993-2014 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 Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <dirent.h>
  19 #include <unistd.h>
  20
  21 #ifndef GETDIRENTRIES
  22 # define GETDIRENTRIES getdirentries
  23 # define __GETDENTS __getdents
  24 #else
  25 # define off_t off64_t
  26 # define __lseek __lseek64
  27 #endif
  28
  29 ssize_t
  30 GETDIRENTRIES (int fd, char *buf, size_t nbytes, off_t *basep)
  31 {
  32   off_t base = __lseek (fd, (off_t) 0, SEEK_CUR);
  33   ssize_t result;
  34
  35   result = __GETDENTS (fd, buf, nbytes);
  36
  37   if (result != -1)
  38     *basep = base;
  39
  40   return result;
  41 }