src/test/test-signal-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2016 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <signal.h>
  21 #include <unistd.h>
  22
  23 #include "macro.h"
  24 #include "signal-util.h"
  25
  26 static void test_block_signals(void) {
  27         sigset_t ss;
  28
  29         assert_se(sigprocmask(0, NULL, &ss) >= 0);
  30
  31         assert_se(sigismember(&ss, SIGUSR1) == 0);
  32         assert_se(sigismember(&ss, SIGALRM) == 0);
  33         assert_se(sigismember(&ss, SIGVTALRM) == 0);
  34
  35         {
  36                 BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
  37
  38                 assert_se(sigprocmask(0, NULL, &ss) >= 0);
  39                 assert_se(sigismember(&ss, SIGUSR1) == 1);
  40                 assert_se(sigismember(&ss, SIGALRM) == 0);
  41                 assert_se(sigismember(&ss, SIGVTALRM) == 1);
  42
  43         }
  44
  45         assert_se(sigprocmask(0, NULL, &ss) >= 0);
  46         assert_se(sigismember(&ss, SIGUSR1) == 0);
  47         assert_se(sigismember(&ss, SIGALRM) == 0);
  48         assert_se(sigismember(&ss, SIGVTALRM) == 0);
  49 }
  50
  51 static void test_ignore_signals(void) {
  52         assert_se(ignore_signals(SIGINT, -1) >= 0);
  53         assert_se(kill(getpid(), SIGINT) >= 0);
  54         assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
  55         assert_se(kill(getpid(), SIGUSR1) >= 0);
  56         assert_se(kill(getpid(), SIGUSR2) >= 0);
  57         assert_se(kill(getpid(), SIGTERM) >= 0);
  58         assert_se(kill(getpid(), SIGPIPE) >= 0);
  59         assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
  60 }
  61
  62 int main(int argc, char *argv[]) {
  63         test_block_signals();
  64         test_ignore_signals();
  65
  66         return 0;
  67 }