diff options
Diffstat (limited to 'src/test/fuzz/util.h')
| -rw-r--r-- | src/test/fuzz/util.h | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h index 62907c7e0b..47f8d3fb27 100644 --- a/src/test/fuzz/util.h +++ b/src/test/fuzz/util.h @@ -5,11 +5,14 @@ #ifndef BITCOIN_TEST_FUZZ_UTIL_H #define BITCOIN_TEST_FUZZ_UTIL_H +#include <amount.h> #include <attributes.h> #include <optional.h> +#include <script/script.h> #include <serialize.h> #include <streams.h> #include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> #include <version.h> #include <cstdint> @@ -22,10 +25,20 @@ NODISCARD inline std::vector<uint8_t> ConsumeRandomLengthByteVector(FuzzedDataPr return {s.begin(), s.end()}; } +NODISCARD inline std::vector<std::string> ConsumeRandomLengthStringVector(FuzzedDataProvider& fuzzed_data_provider, size_t max_vector_size = 16, size_t max_string_length = 16) noexcept +{ + const size_t n_elements = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, max_vector_size); + std::vector<std::string> r; + for (size_t i = 0; i < n_elements; ++i) { + r.push_back(fuzzed_data_provider.ConsumeRandomLengthString(max_string_length)); + } + return r; +} + template <typename T> NODISCARD inline Optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_data_provider, size_t max_length = 4096) noexcept { - const std::vector<uint8_t>& buffer = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length); + const std::vector<uint8_t> buffer = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length); CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION}; T obj; try { @@ -36,4 +49,48 @@ NODISCARD inline Optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_da return obj; } +NODISCARD inline opcodetype ConsumeOpcodeType(FuzzedDataProvider& fuzzed_data_provider) noexcept +{ + return static_cast<opcodetype>(fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, MAX_OPCODE)); +} + +NODISCARD inline CAmount ConsumeMoney(FuzzedDataProvider& fuzzed_data_provider) noexcept +{ + return fuzzed_data_provider.ConsumeIntegralInRange<CAmount>(0, MAX_MONEY); +} + +NODISCARD inline CScript ConsumeScript(FuzzedDataProvider& fuzzed_data_provider) noexcept +{ + const std::vector<uint8_t> b = ConsumeRandomLengthByteVector(fuzzed_data_provider); + return {b.begin(), b.end()}; +} + +NODISCARD inline CScriptNum ConsumeScriptNum(FuzzedDataProvider& fuzzed_data_provider) noexcept +{ + return CScriptNum{fuzzed_data_provider.ConsumeIntegral<int64_t>()}; +} + +template <typename T> +bool MultiplicationOverflow(T i, T j) +{ + static_assert(std::is_integral<T>::value, "Integral required."); + if (std::numeric_limits<T>::is_signed) { + if (i > 0) { + if (j > 0) { + return i > (std::numeric_limits<T>::max() / j); + } else { + return j < (std::numeric_limits<T>::min() / i); + } + } else { + if (j > 0) { + return i < (std::numeric_limits<T>::min() / j); + } else { + return i != 0 && (j < (std::numeric_limits<T>::max() / i)); + } + } + } else { + return j != 0 && i > std::numeric_limits<T>::max() / j; + } +} + #endif // BITCOIN_TEST_FUZZ_UTIL_H |