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author | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-15 02:24:38 +0000 |
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committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-15 16:25:29 +0000 |
commit | 7726f3bc4671fbc23e5bc31d0eb9fe381e2f07ef (patch) | |
tree | b5ffbcdad321ad2cdacef519d74bc9094b17db5d /src/test/fuzz/util.h | |
parent | 0579a276307d22ae62ecbcaa704e8477274e784d (diff) | |
download | bitcoin-7726f3bc4671fbc23e5bc31d0eb9fe381e2f07ef.tar.xz |
tests: Add fuzzing harness for CFeeRate
Diffstat (limited to 'src/test/fuzz/util.h')
-rw-r--r-- | src/test/fuzz/util.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h index 2f4aa9ad2b..ff278aebcc 100644 --- a/src/test/fuzz/util.h +++ b/src/test/fuzz/util.h @@ -5,6 +5,7 @@ #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> @@ -43,6 +44,11 @@ NODISCARD inline opcodetype ConsumeOpcodeType(FuzzedDataProvider& fuzzed_data_pr 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); @@ -54,4 +60,27 @@ NODISCARD inline CScriptNum ConsumeScriptNum(FuzzedDataProvider& fuzzed_data_pro 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 |