toxcore/testing/fuzzing/bootstrap_harness.cc
iphydf 941026266e
refactor: Allow overriding mono_time in tox_new.
This makes it so if mono_time is overridden, no monotonic time-related
system call is invoked in tox_new.
2022-04-03 22:48:16 +00:00

53 lines
1.5 KiB
C++

#include <cassert>
#include <cstring>
#include <memory>
#include "../../toxcore/tox.h"
#include "../../toxcore/tox_private.h"
#include "fuzz_adapter.h"
#include "fuzz_support.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
network_adapter_init(data, size);
uint64_t clock = 0;
auto sys = fuzz_system(clock);
assert(sys->mono_time_callback != nullptr);
assert(sys->mono_time_user_data != nullptr);
Tox_Options *opts = tox_options_new(nullptr);
assert(opts != nullptr);
tox_options_set_operating_system(opts, sys.get());
Tox_Err_New error_new;
Tox *tox = tox_new(opts, &error_new);
assert(tox != nullptr);
assert(error_new == TOX_ERR_NEW_OK);
tox_options_free(opts);
uint8_t pub_key[TOX_PUBLIC_KEY_SIZE] = {0};
const bool success = tox_bootstrap(tox, "127.0.0.1", 12345, pub_key, nullptr);
assert(success);
/*
* The iteration count here is a magic value in the literal sense, too small
* and coverage will be bad, too big and fuzzing will not be efficient.
* NOTE: This should be fine tuned after gathering some experience.
*/
for (uint32_t i = 0; i < 50; ++i) {
tox_iterate(tox, nullptr);
// Move the clock forward a decent amount so all the time-based checks
// trigger more quickly.
clock += 200;
}
tox_kill(tox);
return 0; // Non-zero return values are reserved for future use.
}