io/fxstatat.c

   1 /* Copyright (C) 2005-2018 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 <errno.h>
  19 #include <fcntl.h>
  20 #include <stddef.h>
  21 #include <sys/stat.h>
  22
  23 /* Get information about the file descriptor FD in BUF.  */
  24 int
  25 __fxstatat (int vers, int fd, const char *filename, struct stat *buf, int flag)
  26 {
  27   if (vers != _STAT_VER)
  28     {
  29       __set_errno (EINVAL);
  30       return -1;
  31     }
  32
  33   if (fd < 0 && fd != AT_FDCWD)
  34     {
  35       __set_errno (EBADF);
  36       return -1;
  37     }
  38   if (buf == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
  39     {
  40       __set_errno (EINVAL);
  41       return -1;
  42     }
  43
  44   __set_errno (ENOSYS);
  45   return -1;
  46 }
  47 libc_hidden_def (__fxstatat)
  48 stub_warning (fstatat)