summary refs log tree commit diff
path: root/misc/tst-fdset.c
blob: a7e60ae1bb441580a22137fd4ea36bbfae773430 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/* Test FD* macros.
   Copyright (C) 1997-2021 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Robert Bihlmeyer <robbe@orcus.priv.at>.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <stdio.h>
#include <sys/types.h>

static int
do_test (void)
{
  int retval = 0;
  int i;
  fd_set set;

  FD_ZERO (&set);
  for (i=0; i < FD_SETSIZE; ++i)
    {
      printf ("%d =>  check:", i);
      if (FD_ISSET (i, &set) == 0)
	fputs ("ok", stdout);
      else
	{
	  fputs ("nok", stdout);
	  retval = 1;
	}
      fputs (", set", stdout);
      FD_SET (i, &set);
      fputs (", check:", stdout);
      if (FD_ISSET (i, &set))
	fputs ("ok", stdout);
      else
	{
	  fputs ("nok", stdout);
	  retval = 1;
	}
      fputs (", clear", stdout);
      FD_CLR (i, &set);
      fputs (", check:", stdout);
      if (FD_ISSET (i, &set) == 0)
	puts ("ok");
      else
	{
	  puts ("nok");
	  retval = 1;
	}
    }

  return retval;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"