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/***
This file is part of PulseAudio.
Copyright 2009 Lennart Poettering
PulseAudio 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.
PulseAudio 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
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <fcntl.h>
#include <sys/mman.h>
#include <check.h>
#include <pulsecore/memtrap.h>
#include <pulsecore/core-util.h>
START_TEST (sigbus_test) {
void *p;
int fd;
pa_memtrap *m;
const size_t page_size = pa_page_size();
pa_log_set_level(PA_LOG_DEBUG);
pa_memtrap_install();
/* Create the memory map */
fail_unless((fd = open("sigbus-test-map", O_RDWR|O_TRUNC|O_CREAT, 0660)) >= 0);
fail_unless(unlink("sigbus-test-map") == 0);
fail_unless(ftruncate(fd, page_size) >= 0);
fail_unless((p = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) != MAP_FAILED);
/* Register memory map */
m = pa_memtrap_add(p, page_size);
/* Use memory map */
pa_snprintf(p, page_size, "This is a test that should work fine.");
/* Verify memory map */
pa_log("Let's see if this worked: %s", (char*) p);
pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
fail_unless(pa_memtrap_is_good(m) == true);
/* Invalidate mapping */
fail_unless(ftruncate(fd, 0) >= 0);
/* Use memory map */
pa_snprintf(p, page_size, "This is a test that should fail but get caught.");
/* Verify memory map */
pa_log("Let's see if this worked: %s", (char*) p);
pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
fail_unless(pa_memtrap_is_good(m) == false);
pa_memtrap_remove(m);
munmap(p, page_size);
close(fd);
}
END_TEST
int main(int argc, char *argv[]) {
int failed = 0;
Suite *s;
TCase *tc;
SRunner *sr;
s = suite_create("Sig Bus");
tc = tcase_create("sigbus");
tcase_add_test(tc, sigbus_test);
suite_add_tcase(s, tc);
sr = srunner_create(s);
srunner_run_all(sr, CK_NORMAL);
failed = srunner_ntests_failed(sr);
srunner_free(sr);
return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
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