1  /* Copyright (C) 1991-2023 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 <stdarg.h>
      21  #include <stddef.h>
      22  #include <stdio.h>
      23  
      24  /* Open FILE with access OFLAG.  If O_CREAT or O_TMPFILE is in OFLAG,
      25     a third argument is the file protection.  */
      26  int
      27  __libc_open64 (const char *file, int oflag)
      28  {
      29    int mode;
      30  
      31    if (file == NULL)
      32      {
      33        __set_errno (EINVAL);
      34        return -1;
      35      }
      36  
      37    if (__OPEN_NEEDS_MODE (oflag))
      38      {
      39        va_list arg;
      40        va_start (arg, oflag);
      41        mode = va_arg (arg, int);
      42        va_end (arg);
      43      }
      44  
      45    __set_errno (ENOSYS);
      46    return -1;
      47  }
      48  strong_alias (__libc_open64, __open64)
      49  libc_hidden_def (__open64)
      50  weak_alias (__libc_open64, open64)
      51  
      52  stub_warning (open64)
      53  
      54  /* __open64_2 is a generic wrapper that calls __open64.
      55     So give a stub warning for that symbol too.  */
      56  stub_warning (__open64_2)