signal/tst-sigaction.c

   1 /* Test sigaction regression for BZ #23069.
   2    Copyright (C) 2018 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    <http://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>