1  /* Copyright (C) 2005-2023 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 <errno.h>
      19  #include <fcntl.h>
      20  #include <stdio.h>
      21  
      22  
      23  /* Rename the file OLD relative to OLDFD to NEW relative to NEWFD.  */
      24  int
      25  __renameat (int oldfd, const char *old, int newfd, const char *new)
      26  {
      27    if ((oldfd < 0 && oldfd != AT_FDCWD) || (newfd < 0 && newfd != AT_FDCWD))
      28      {
      29        __set_errno (EBADF);
      30        return -1;
      31      }
      32  
      33    if (old == NULL || new == NULL)
      34      {
      35        __set_errno (EINVAL);
      36        return -1;
      37      }
      38  
      39    __set_errno (ENOSYS);
      40    return -1;
      41  }
      42  
      43  libc_hidden_def (__renameat)
      44  weak_alias (__renameat, renameat)
      45  stub_warning (renameat)