io/fcntl64.c

   1 /* Manipulate file descriptor.  Stub LFS version.
   2    Copyright (C) 2018-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <fcntl.h>
  21
  22 /* Perform file control operations on FD.  */
  23 int
  24 __fcntl64 (int fd, int cmd, ...)
  25 {
  26   if (fd < 0)
  27     {
  28       __set_errno (EBADF);
  29       return -1;
  30     }
  31
  32   __set_errno (ENOSYS);
  33   return -1;
  34 }
  35 libc_hidden_def (__fcntl64)
  36 stub_warning (fcntl64)
  37
  38 weak_alias (__fcntl64, fcntl64)