sysdeps/unix/sysv/linux/tst-clone.c

   1 /* Test for proper error/errno handling in clone.
   2    Copyright (C) 2006-2024 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 /* BZ #2386 */
  20 #include <errno.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <sched.h>
  25
  26 int child_fn(void *arg)
  27 {
  28   puts ("FAIL: in child_fn(); should not be here");
  29   exit(1);
  30 }
  31
  32 static int
  33 do_test (void)
  34 {
  35   int result;
  36
  37   result = clone (child_fn, NULL, 0, NULL);
  38
  39   if (errno != EINVAL || result != -1)
  40     {
  41       printf ("FAIL: clone()=%d (wanted -1) errno=%d (wanted %d)\n",
  42               result, errno, EINVAL);
  43       return 1;
  44     }
  45
  46   puts ("All OK");
  47   return 0;
  48 }
  49
  50 #define TEST_FUNCTION do_test ()
  51 #include "../test-skeleton.c"