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56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/* Test that sigprocmask does not read from the unused part of jmpbuf.
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Copyright (C) 2017-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <errno.h>
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#include <setjmpP.h>
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#include <support/next_to_fault.h>
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#define SIZEOF_SIGSET_T sizeof (__jmp_buf_sigset_t)
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static int
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do_test (void)
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{
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sigjmp_buf sj;
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struct support_next_to_fault sigset_t_buf
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= support_next_to_fault_allocate (SIZEOF_SIGSET_T);
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sigset_t *m_p = (sigset_t *) sigset_t_buf.buffer;
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sigset_t m;
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sigemptyset (&m);
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memcpy (m_p, &m, SIZEOF_SIGSET_T);
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sigprocmask (SIG_SETMASK, m_p, NULL);
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memcpy (&m, m_p, SIZEOF_SIGSET_T);
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if (sigsetjmp (sj, 0) == 0)
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{
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sigaddset (&m, SIGUSR1);
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memcpy (m_p, &m, SIZEOF_SIGSET_T);
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sigprocmask (SIG_SETMASK, m_p, NULL);
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memcpy (&m, m_p, SIZEOF_SIGSET_T);
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siglongjmp (sj, 1);
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return EXIT_FAILURE;
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}
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sigprocmask (SIG_SETMASK, NULL, m_p);
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memcpy (&m, m_p, SIZEOF_SIGSET_T);
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return sigismember (&m, SIGUSR1) ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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#include <support/test-driver.c>
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