1  /* Test sigaction regression for BZ #23069.
       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 <signal.h>
      20  #include <unistd.h>
      21  
      22  #include <support/check.h>
      23  
      24  static void
      25  my_sig_handler (int signum)
      26  {
      27  }
      28  
      29  static int
      30  do_test (void)
      31  {
      32    /* Define a simple signal handler */
      33    struct sigaction act;
      34    act.sa_handler = my_sig_handler;
      35    act.sa_flags = 0;
      36    sigemptyset (&act.sa_mask);
      37  
      38    /* Set it as SIGUSR1 signal handler */
      39    TEST_VERIFY_EXIT (sigaction (SIGUSR1, &act, NULL) == 0);
      40  
      41    /* Get SIGUSR1 signal handler */
      42    TEST_VERIFY_EXIT (sigaction (SIGUSR1, NULL, &act) == 0);
      43  
      44    /* Check it is consistent with the defined one */
      45    TEST_VERIFY (act.sa_handler == my_sig_handler);
      46    TEST_VERIFY (!(act.sa_flags & SA_RESETHAND));
      47  
      48    for (int i = 1; i < _NSIG; i++)
      49      {
      50        TEST_VERIFY (!sigismember (&act.sa_mask, i));
      51      }
      52  
      53    return 0;
      54  }
      55  
      56  #include <support/test-driver.c>