+static ManagerRunningAs running_as = _MANAGER_RUNNING_AS_INVALID;
+
+static bool dump_core = true;
+static bool crash_shell = true;
+
+_noreturn static void freeze(void) {
+ for (;;)
+ pause();
+}
+
+_noreturn static void crash(int sig) {
+
+ if (!dump_core)
+ log_error("Caught <%s>, not dumping core.", strsignal(sig));
+ else {
+ pid_t pid;
+
+ if ((pid = fork()) < 0)
+ log_error("Caught <%s>, cannot fork for core dump: %s", strsignal(sig), strerror(errno));
+
+ else if (pid == 0) {
+ struct sigaction sa;
+ struct rlimit rl;
+
+ /* Enable default signal handler for core dump */
+ zero(sa);
+ sa.sa_handler = SIG_DFL;
+ assert_se(sigaction(sig, &sa, NULL) == 0);
+
+ /* Don't limit the core dump size */
+ zero(rl);
+ rl.rlim_cur = RLIM_INFINITY;
+ rl.rlim_max = RLIM_INFINITY;
+ setrlimit(RLIMIT_CORE, &rl);
+
+ /* Just to be sure... */
+ assert_se(chdir("/") == 0);
+
+ /* Raise the signal again */
+ raise(sig);
+
+ assert_not_reached("We shouldn't be here...");
+ _exit(1);
+
+ } else {
+ int status, r;
+
+ /* Order things nicely. */
+ if ((r = waitpid(pid, &status, 0)) < 0)
+ log_error("Caught <%s>, waitpid() failed: %s", strsignal(sig), strerror(errno));
+ else if (!WCOREDUMP(status))
+ log_error("Caught <%s>, core dump failed.", strsignal(sig));
+ else
+ log_error("Caught <%s>, dumped core as pid %llu.", strsignal(sig), (unsigned long long) pid);
+ }
+ }
+
+ if (crash_shell) {
+ log_info("Executing crash shell in 10s...");
+ sleep(10);
+
+ execl("/bin/sh", "/bin/sh", NULL);
+ log_error("execl() failed: %s", strerror(errno));
+ }
+
+ log_info("Freezing execution.");
+ freeze();
+}
+
+static void install_crash_handler(void) {
+ struct sigaction sa;
+
+ zero(sa);
+
+ sa.sa_handler = crash;
+ sa.sa_flags = SA_NODEFER;
+
+ assert_se(sigaction(SIGSEGV, &sa, NULL) == 0);
+ assert_se(sigaction(SIGABRT, &sa, NULL) == 0);
+}