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45d9030638
PA_PAGE_SIZE using sysconf() may return a negative number CID 1137925, CID 1137926, CID 1138485 instead of calling sysconf() directly, add function pa_page_size() which uses the guestimate 4096 in case sysconf(_SC_PAGE_SIZE) fails using PA_ONCE to only evaluate sysconf() once
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2009 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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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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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 PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <check.h>
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#include <pulsecore/memtrap.h>
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#include <pulsecore/core-util.h>
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START_TEST (sigbus_test) {
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void *p;
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int fd;
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pa_memtrap *m;
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const size_t page_size = pa_page_size();
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pa_log_set_level(PA_LOG_DEBUG);
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pa_memtrap_install();
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/* Create the memory map */
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fail_unless((fd = open("sigbus-test-map", O_RDWR|O_TRUNC|O_CREAT, 0660)) >= 0);
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fail_unless(unlink("sigbus-test-map") == 0);
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fail_unless(ftruncate(fd, page_size) >= 0);
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fail_unless((p = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) != MAP_FAILED);
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/* Register memory map */
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m = pa_memtrap_add(p, page_size);
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/* Use memory map */
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pa_snprintf(p, page_size, "This is a test that should work fine.");
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/* Verify memory map */
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pa_log("Let's see if this worked: %s", (char*) p);
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pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
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fail_unless(pa_memtrap_is_good(m) == true);
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/* Invalidate mapping */
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fail_unless(ftruncate(fd, 0) >= 0);
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/* Use memory map */
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pa_snprintf(p, page_size, "This is a test that should fail but get caught.");
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/* Verify memory map */
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pa_log("Let's see if this worked: %s", (char*) p);
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pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
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fail_unless(pa_memtrap_is_good(m) == false);
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pa_memtrap_remove(m);
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munmap(p, page_size);
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close(fd);
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}
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END_TEST
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int main(int argc, char *argv[]) {
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int failed = 0;
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Suite *s;
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TCase *tc;
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SRunner *sr;
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s = suite_create("Sig Bus");
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tc = tcase_create("sigbus");
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tcase_add_test(tc, sigbus_test);
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suite_add_tcase(s, tc);
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sr = srunner_create(s);
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srunner_run_all(sr, CK_NORMAL);
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failed = srunner_ntests_failed(sr);
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srunner_free(sr);
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return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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