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fuzz: Use correct variant of ConsumeRandomLengthString instead of hardcoding a maximum size

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This is technically a breaking change.

This allows the fuzz engine to pick the right size,
also larger sizes, if needed.
This commit is contained in:
MarcoFalke 2021-04-28 20:48:10 +02:00
parent fae2c8bc54
commit fab646b8ea
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GPG key ID: CE2B75697E69A548
2 changed files with 9 additions and 7 deletions
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2
src/test/fuzz/util.cpp
View file

@ -276,7 +276,7 @@ CScriptWitness ConsumeScriptWitness(FuzzedDataProvider& fuzzed_data_provider, co
return ret;
}
CScript ConsumeScript(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length, const bool maybe_p2wsh) noexcept
CScript ConsumeScript(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length, const bool maybe_p2wsh) noexcept
{
const std::vector<uint8_t> b = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length);
CScript r_script{b.begin(), b.end()};

14
src/test/fuzz/util.h
View file

@ -57,18 +57,20 @@ auto& PickValue(FuzzedDataProvider& fuzzed_data_provider, Collection& col)
return *it;
}
[[nodiscard]] inline std::vector<uint8_t> ConsumeRandomLengthByteVector(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
[[nodiscard]] inline std::vector<uint8_t> ConsumeRandomLengthByteVector(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length = std::nullopt) noexcept
{
const std::string s = fuzzed_data_provider.ConsumeRandomLengthString(max_length);
const std::string s = max_length ?
fuzzed_data_provider.ConsumeRandomLengthString(*max_length) :
fuzzed_data_provider.ConsumeRandomLengthString();
return {s.begin(), s.end()};
}
[[nodiscard]] inline std::vector<bool> ConsumeRandomLengthBitVector(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
[[nodiscard]] inline std::vector<bool> ConsumeRandomLengthBitVector(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length = std::nullopt) noexcept
{
return BytesToBits(ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length));
}
[[nodiscard]] inline CDataStream ConsumeDataStream(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
[[nodiscard]] inline CDataStream ConsumeDataStream(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length = std::nullopt) noexcept
{
return CDataStream{ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length), SER_NETWORK, INIT_PROTO_VERSION};
}
@ -95,7 +97,7 @@ template <typename T>
}
template <typename T>
[[nodiscard]] inline std::optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
[[nodiscard]] inline std::optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length = std::nullopt) noexcept
{
const std::vector<uint8_t> buffer = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length);
CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION};
@ -132,7 +134,7 @@ template <typename WeakEnumType, size_t size>
[[nodiscard]] CScriptWitness ConsumeScriptWitness(FuzzedDataProvider& fuzzed_data_provider, const size_t max_stack_elem_size = 32) noexcept;
[[nodiscard]] CScript ConsumeScript(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096, const bool maybe_p2wsh = false) noexcept;
[[nodiscard]] CScript ConsumeScript(FuzzedDataProvider& fuzzed_data_provider, const std::optional<size_t>& max_length = std::nullopt, const bool maybe_p2wsh = false) noexcept;
[[nodiscard]] uint32_t ConsumeSequence(FuzzedDataProvider& fuzzed_data_provider) noexcept;