/* Signal handler and mask set in thread which calls exec. Copyright (C) 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <pthread.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> static void * tf (void *arg) { /* Ignore SIGUSR1 and block SIGUSR2. */ if (sigignore (SIGUSR1) != 0) { puts ("sigignore failed"); exit (1); } sigset_t ss; sigemptyset (&ss); sigaddset (&ss, SIGUSR2); if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0) { puts ("1st run: sigmask failed"); exit (1); } char **oldargv = (char **) arg; size_t n = 1; while (oldargv[n] != NULL) ++n; char **argv = (char **) alloca ((n + 1) * sizeof (char *)); for (n = 0; oldargv[n + 1] != NULL; ++n) argv[n] = oldargv[n + 1]; argv[n++] = (char *) "-d"; argv[n] = NULL; execv (argv[0], argv); puts ("execv failed"); exit (1); } static int do_test (int argc, char *argv[]) { if (argc == 1) { /* This is the second call. Perform the test. */ struct sigaction sa; if (sigaction (SIGUSR1, NULL, &sa) != 0) { puts ("2nd run: sigaction failed"); return 1; } if (sa.sa_handler != SIG_IGN) { puts ("SIGUSR1 not ignored"); return 1; } sigset_t ss; if (pthread_sigmask (SIG_SETMASK, NULL, &ss) != 0) { puts ("2nd run: sigmask failed"); return 1; } if (! sigismember (&ss, SIGUSR2)) { puts ("SIGUSR2 not blocked"); return 1; } return 0; } pthread_t th; if (pthread_create (&th, NULL, tf, argv) != 0) { puts ("create failed"); exit (1); } /* This call should never return. */ pthread_join (th, NULL); puts ("join returned"); return 1; } #define TEST_FUNCTION do_test (argc, argv) #include "../test-skeleton.c"