kc3-lang/gnulib/tests/test-fdopen.c

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• tests/test-fdopen.c

• /* Test opening a stream with a file descriptor.
     Copyright (C) 2011-2025 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include <stdio.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (fdopen, FILE *, (int, const char *));
  
  #include <errno.h>
  #include <unistd.h>
  
  #include "macros.h"
  
  int
  main (void)
  {
    /* Test behavior on failure.  POSIX makes it hard to check for
       failure, since the behavior is not well-defined on invalid file
       descriptors, so try fdopen 1000 times and if that's not enough to
       fail due to EMFILE, so be it.  */
    #if defined __ANDROID__ /* fdsan */
      #define COUNT 1
    #else
      #define COUNT 1000
    #endif
  
    int i;
    for (i = 0; i < COUNT; i++)
      {
        errno = 0;
        if (! fdopen (STDOUT_FILENO, "w"))
          {
            ASSERT (errno != 0);
            break;
          }
      }
  
    return test_exit_status;
  }
  

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