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fuzz: Make addrman fuzzing harness deterministic

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practicalswift
2020-11-19 10:43:00 +00:00
parent 3457054c61
commit 17a5f172fa
2 changed files with 14 additions and 3 deletions
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14
src/test/fuzz/addrman.cpp
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@@ -22,12 +22,22 @@ void initialize()
SelectParams(CBaseChainParams::REGTEST);
}
class CAddrManDeterministic : public CAddrMan
{
public:
void MakeDeterministic(const uint256& random_seed)
{
insecure_rand = FastRandomContext{random_seed};
Clear();
}
};
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
SetMockTime(ConsumeTime(fuzzed_data_provider));
CAddrMan addr_man;
CAddrManDeterministic addr_man;
addr_man.MakeDeterministic(ConsumeUInt256(fuzzed_data_provider));
if (fuzzed_data_provider.ConsumeBool()) {
addr_man.m_asmap = ConsumeRandomLengthBitVector(fuzzed_data_provider);
if (!SanityCheckASMap(addr_man.m_asmap)) {