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glibc/nptl/tst-exec4.c
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/* Signal handler and mask set in thread which calls exec. | |
Copyright (C) 2003-2016 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 *) "--direct"; | |
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" |