1  /* Test for libio vtables and their validation.  Enabled through interposition.
       2     Copyright (C) 2018-2023 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 "tst-vtables-common.c"
      20  
      21  /* Provide an interposed definition of the standard file handles with
      22     our own vtable.  stdout/stdin/stderr will not work as a result, but
      23     a successful test does not print anything, so this is fine.  */
      24  #include "libioP.h"
      25  #undef _IO_file_jumps
      26  #define _IO_file_jumps jumps
      27  #undef _IO_wfile_jumps
      28  extern const struct _IO_jump_t _IO_wfile_jumps;
      29  #define _IO_wfile_jumps _IO_wfile_jumps
      30  #include "stdfiles.c"
      31  
      32  static int
      33  do_test (void)
      34  {
      35    return run_tests (false);
      36  }
      37  
      38  /* Calling setvbuf in the test driver is not supported with our
      39     interposed file handles.  */
      40  #define TEST_NO_SETVBUF
      41  #include <support/test-driver.c>