io/fstatat.c

   1 /* Copyright (C) 2005-2021 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <sys/stat.h>
  19 #include <errno.h>
  20
  21 int
  22 __fstatat (int fd, const char *file, struct stat *buf, int flag)
  23 {
  24   if (fd < 0 && fd != AT_FDCWD)
  25     {
  26       __set_errno (EBADF);
  27       return -1;
  28     }
  29   if (buf == NULL || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
  30     {
  31       __set_errno (EINVAL);
  32       return -1;
  33     }
  34
  35   __set_errno (ENOSYS);
  36   return -1;
  37 }
  38
  39 weak_alias (__fstatat, fstatat)
  40
  41 stub_warning (fstatat)