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/* Test that sigprocmask does not read from the unused part of jmpbuf.
Copyright (C) 2017-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <setjmpP.h>
#include <support/next_to_fault.h>
#define SIZEOF_SIGSET_T sizeof (__jmp_buf_sigset_t)
static int
do_test (void)
{
sigjmp_buf sj;
struct support_next_to_fault sigset_t_buf
= support_next_to_fault_allocate (SIZEOF_SIGSET_T);
sigset_t *m_p = (sigset_t *) sigset_t_buf.buffer;
sigset_t m;
sigemptyset (&m);
memcpy (m_p, &m, SIZEOF_SIGSET_T);
sigprocmask (SIG_SETMASK, m_p, NULL);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
if (sigsetjmp (sj, 0) == 0)
{
sigaddset (&m, SIGUSR1);
memcpy (m_p, &m, SIZEOF_SIGSET_T);
sigprocmask (SIG_SETMASK, m_p, NULL);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
siglongjmp (sj, 1);
return EXIT_FAILURE;
}
sigprocmask (SIG_SETMASK, NULL, m_p);
memcpy (&m, m_p, SIZEOF_SIGSET_T);
return sigismember (&m, SIGUSR1) ? EXIT_SUCCESS : EXIT_FAILURE;
}
#include <support/test-driver.c>
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