116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/* Signal handler and mask set in thread which calls exec.
|
|
Copyright (C) 2003-2013 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"
|