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-rw-r--r--src/Makefile.test.include40
-rw-r--r--src/test/fuzz/block_header.cpp41
-rw-r--r--src/test/fuzz/fee_rate.cpp40
-rw-r--r--src/test/fuzz/integer.cpp4
-rw-r--r--src/test/fuzz/multiplication_overflow.cpp42
-rw-r--r--src/test/fuzz/string.cpp89
-rw-r--r--src/test/fuzz/util.h39
7 files changed, 289 insertions, 6 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 161c925a53..9697a157fb 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -14,6 +14,7 @@ FUZZ_TARGETS = \
test/fuzz/block_deserialize \
test/fuzz/block_file_info_deserialize \
test/fuzz/block_filter_deserialize \
+ test/fuzz/block_header \
test/fuzz/block_header_and_short_txids_deserialize \
test/fuzz/blockheader_deserialize \
test/fuzz/blocklocator_deserialize \
@@ -28,6 +29,7 @@ FUZZ_TARGETS = \
test/fuzz/descriptor_parse \
test/fuzz/diskblockindex_deserialize \
test/fuzz/eval_script \
+ test/fuzz/fee_rate \
test/fuzz/fee_rate_deserialize \
test/fuzz/flat_file_pos_deserialize \
test/fuzz/float \
@@ -40,6 +42,7 @@ FUZZ_TARGETS = \
test/fuzz/locale \
test/fuzz/merkle_block_deserialize \
test/fuzz/messageheader_deserialize \
+ test/fuzz/multiplication_overflow \
test/fuzz/netaddr_deserialize \
test/fuzz/netaddress \
test/fuzz/out_point_deserialize \
@@ -90,6 +93,7 @@ FUZZ_TARGETS = \
test/fuzz/service_deserialize \
test/fuzz/snapshotmetadata_deserialize \
test/fuzz/spanparsing \
+ test/fuzz/string \
test/fuzz/strprintf \
test/fuzz/sub_net_deserialize \
test/fuzz/transaction \
@@ -343,6 +347,12 @@ test_fuzz_block_filter_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_block_filter_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_block_filter_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
+test_fuzz_block_header_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_block_header_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_block_header_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_block_header_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_block_header_SOURCES = $(FUZZ_SUITE) test/fuzz/block_header.cpp
+
test_fuzz_block_header_and_short_txids_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCK_HEADER_AND_SHORT_TXIDS_DESERIALIZE=1
test_fuzz_block_header_and_short_txids_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_block_header_and_short_txids_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -427,6 +437,12 @@ test_fuzz_eval_script_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_eval_script_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_eval_script_SOURCES = $(FUZZ_SUITE) test/fuzz/eval_script.cpp
+test_fuzz_fee_rate_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_fee_rate_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_fee_rate_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_fee_rate_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_fee_rate_SOURCES = $(FUZZ_SUITE) test/fuzz/fee_rate.cpp
+
test_fuzz_fee_rate_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DFEE_RATE_DESERIALIZE=1
test_fuzz_fee_rate_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_fee_rate_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -499,6 +515,12 @@ test_fuzz_messageheader_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_messageheader_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_messageheader_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
+test_fuzz_multiplication_overflow_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_multiplication_overflow_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_multiplication_overflow_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_multiplication_overflow_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_multiplication_overflow_SOURCES = $(FUZZ_SUITE) test/fuzz/multiplication_overflow.cpp
+
test_fuzz_netaddr_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DNETADDR_DESERIALIZE=1
test_fuzz_netaddr_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_netaddr_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -787,12 +809,24 @@ test_fuzz_service_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_service_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_service_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
+test_fuzz_snapshotmetadata_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DSNAPSHOTMETADATA_DESERIALIZE=1
+test_fuzz_snapshotmetadata_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_snapshotmetadata_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_snapshotmetadata_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_snapshotmetadata_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
+
test_fuzz_spanparsing_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_spanparsing_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_spanparsing_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_spanparsing_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_spanparsing_SOURCES = $(FUZZ_SUITE) test/fuzz/spanparsing.cpp
+test_fuzz_string_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_string_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_string_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_string_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_string_SOURCES = $(FUZZ_SUITE) test/fuzz/string.cpp
+
test_fuzz_strprintf_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_strprintf_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_strprintf_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -805,12 +839,6 @@ test_fuzz_sub_net_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_sub_net_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_sub_net_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
-test_fuzz_snapshotmetadata_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DSNAPSHOTMETADATA_DESERIALIZE=1
-test_fuzz_snapshotmetadata_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
-test_fuzz_snapshotmetadata_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
-test_fuzz_snapshotmetadata_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
-test_fuzz_snapshotmetadata_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
-
test_fuzz_transaction_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_transaction_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_transaction_LDADD = $(FUZZ_SUITE_LD_COMMON)
diff --git a/src/test/fuzz/block_header.cpp b/src/test/fuzz/block_header.cpp
new file mode 100644
index 0000000000..92dcccc0e1
--- /dev/null
+++ b/src/test/fuzz/block_header.cpp
@@ -0,0 +1,41 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <optional.h>
+#include <primitives/block.h>
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+#include <uint256.h>
+
+#include <cassert>
+#include <cstdint>
+#include <string>
+#include <vector>
+
+void test_one_input(const std::vector<uint8_t>& buffer)
+{
+ FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
+ const Optional<CBlockHeader> block_header = ConsumeDeserializable<CBlockHeader>(fuzzed_data_provider);
+ if (!block_header) {
+ return;
+ }
+ {
+ const uint256 hash = block_header->GetHash();
+ static const uint256 u256_max(uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
+ assert(hash != u256_max);
+ assert(block_header->GetBlockTime() == block_header->nTime);
+ assert(block_header->IsNull() == (block_header->nBits == 0));
+ }
+ {
+ CBlockHeader mut_block_header = *block_header;
+ mut_block_header.SetNull();
+ assert(mut_block_header.IsNull());
+ CBlock block{*block_header};
+ assert(block.GetBlockHeader().GetHash() == block_header->GetHash());
+ (void)block.ToString();
+ block.SetNull();
+ assert(block.GetBlockHeader().GetHash() == mut_block_header.GetHash());
+ }
+}
diff --git a/src/test/fuzz/fee_rate.cpp b/src/test/fuzz/fee_rate.cpp
new file mode 100644
index 0000000000..f3d44d9f93
--- /dev/null
+++ b/src/test/fuzz/fee_rate.cpp
@@ -0,0 +1,40 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <amount.h>
+#include <policy/feerate.h>
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+
+#include <cstdint>
+#include <limits>
+#include <string>
+#include <vector>
+
+void test_one_input(const std::vector<uint8_t>& buffer)
+{
+ FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
+ const CAmount satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
+ const CFeeRate fee_rate{satoshis_per_k};
+
+ (void)fee_rate.GetFeePerK();
+ const size_t bytes = fuzzed_data_provider.ConsumeIntegral<size_t>();
+ if (!MultiplicationOverflow(static_cast<int64_t>(bytes), satoshis_per_k) && bytes <= static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) {
+ (void)fee_rate.GetFee(bytes);
+ }
+ (void)fee_rate.ToString();
+
+ const CAmount another_satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
+ CFeeRate larger_fee_rate{another_satoshis_per_k};
+ larger_fee_rate += fee_rate;
+ if (satoshis_per_k != 0 && another_satoshis_per_k != 0) {
+ assert(fee_rate < larger_fee_rate);
+ assert(!(fee_rate > larger_fee_rate));
+ assert(!(fee_rate == larger_fee_rate));
+ assert(fee_rate <= larger_fee_rate);
+ assert(!(fee_rate >= larger_fee_rate));
+ assert(fee_rate != larger_fee_rate);
+ }
+}
diff --git a/src/test/fuzz/integer.cpp b/src/test/fuzz/integer.cpp
index 980042e811..24459c21be 100644
--- a/src/test/fuzz/integer.cpp
+++ b/src/test/fuzz/integer.cpp
@@ -23,6 +23,7 @@
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
+#include <time.h>
#include <uint256.h>
#include <util/moneystr.h>
#include <util/strencodings.h>
@@ -31,6 +32,7 @@
#include <version.h>
#include <cassert>
+#include <chrono>
#include <limits>
#include <vector>
@@ -124,6 +126,8 @@ void test_one_input(const std::vector<uint8_t>& buffer)
assert(parsed_money == i64);
}
}
+ const std::chrono::seconds seconds{i64};
+ assert(count_seconds(seconds) == i64);
const arith_uint256 au256 = UintToArith256(u256);
assert(ArithToUint256(au256) == u256);
diff --git a/src/test/fuzz/multiplication_overflow.cpp b/src/test/fuzz/multiplication_overflow.cpp
new file mode 100644
index 0000000000..923db8058b
--- /dev/null
+++ b/src/test/fuzz/multiplication_overflow.cpp
@@ -0,0 +1,42 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace {
+template <typename T>
+void TestMultiplicationOverflow(FuzzedDataProvider& fuzzed_data_provider)
+{
+ const T i = fuzzed_data_provider.ConsumeIntegral<T>();
+ const T j = fuzzed_data_provider.ConsumeIntegral<T>();
+ const bool is_multiplication_overflow_custom = MultiplicationOverflow(i, j);
+ T result_builtin;
+ const bool is_multiplication_overflow_builtin = __builtin_mul_overflow(i, j, &result_builtin);
+ assert(is_multiplication_overflow_custom == is_multiplication_overflow_builtin);
+ if (!is_multiplication_overflow_custom) {
+ assert(i * j == result_builtin);
+ }
+}
+} // namespace
+
+void test_one_input(const std::vector<uint8_t>& buffer)
+{
+ FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
+ TestMultiplicationOverflow<int64_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<uint64_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<int32_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<uint32_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<int16_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<uint16_t>(fuzzed_data_provider);
+ TestMultiplicationOverflow<char>(fuzzed_data_provider);
+ TestMultiplicationOverflow<unsigned char>(fuzzed_data_provider);
+ TestMultiplicationOverflow<signed char>(fuzzed_data_provider);
+ TestMultiplicationOverflow<bool>(fuzzed_data_provider);
+}
diff --git a/src/test/fuzz/string.cpp b/src/test/fuzz/string.cpp
new file mode 100644
index 0000000000..bb583885ba
--- /dev/null
+++ b/src/test/fuzz/string.cpp
@@ -0,0 +1,89 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <blockfilter.h>
+#include <clientversion.h>
+#include <logging.h>
+#include <netbase.h>
+#include <outputtype.h>
+#include <rpc/client.h>
+#include <rpc/request.h>
+#include <rpc/server.h>
+#include <rpc/util.h>
+#include <script/descriptor.h>
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+#include <util/error.h>
+#include <util/fees.h>
+#include <util/message.h>
+#include <util/settings.h>
+#include <util/strencodings.h>
+#include <util/string.h>
+#include <util/system.h>
+#include <util/translation.h>
+#include <util/url.h>
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+void test_one_input(const std::vector<uint8_t>& buffer)
+{
+ FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
+ const std::string random_string_1 = fuzzed_data_provider.ConsumeRandomLengthString(32);
+ const std::string random_string_2 = fuzzed_data_provider.ConsumeRandomLengthString(32);
+ const std::vector<std::string> random_string_vector = ConsumeRandomLengthStringVector(fuzzed_data_provider);
+
+ (void)AmountErrMsg(random_string_1, random_string_2);
+ (void)AmountHighWarn(random_string_1);
+ BlockFilterType block_filter_type;
+ (void)BlockFilterTypeByName(random_string_1, block_filter_type);
+ (void)Capitalize(random_string_1);
+ (void)CopyrightHolders(random_string_1);
+ FeeEstimateMode fee_estimate_mode;
+ (void)FeeModeFromString(random_string_1, fee_estimate_mode);
+ (void)FormatParagraph(random_string_1, fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 1000), fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 1000));
+ (void)FormatSubVersion(random_string_1, fuzzed_data_provider.ConsumeIntegral<int>(), random_string_vector);
+ (void)GetDescriptorChecksum(random_string_1);
+ (void)HelpExampleCli(random_string_1, random_string_2);
+ (void)HelpExampleRpc(random_string_1, random_string_2);
+ (void)HelpMessageGroup(random_string_1);
+ (void)HelpMessageOpt(random_string_1, random_string_2);
+ (void)IsDeprecatedRPCEnabled(random_string_1);
+ (void)Join(random_string_vector, random_string_1);
+ (void)JSONRPCError(fuzzed_data_provider.ConsumeIntegral<int>(), random_string_1);
+ const util::Settings settings;
+ (void)OnlyHasDefaultSectionSetting(settings, random_string_1, random_string_2);
+ (void)ParseNetwork(random_string_1);
+ try {
+ (void)ParseNonRFCJSONValue(random_string_1);
+ } catch (const std::runtime_error&) {
+ }
+ OutputType output_type;
+ (void)ParseOutputType(random_string_1, output_type);
+ (void)ResolveErrMsg(random_string_1, random_string_2);
+ try {
+ (void)RPCConvertNamedValues(random_string_1, random_string_vector);
+ } catch (const std::runtime_error&) {
+ }
+ try {
+ (void)RPCConvertValues(random_string_1, random_string_vector);
+ } catch (const std::runtime_error&) {
+ }
+ (void)SanitizeString(random_string_1);
+ (void)SanitizeString(random_string_1, fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 3));
+ (void)ShellEscape(random_string_1);
+ int port_out;
+ std::string host_out;
+ SplitHostPort(random_string_1, port_out, host_out);
+ (void)TimingResistantEqual(random_string_1, random_string_2);
+ (void)ToLower(random_string_1);
+ (void)ToUpper(random_string_1);
+ (void)TrimString(random_string_1);
+ (void)TrimString(random_string_1, random_string_2);
+ (void)urlDecode(random_string_1);
+ (void)ValidAsCString(random_string_1);
+ (void)_(random_string_1.c_str());
+}
diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h
index 2f4aa9ad2b..47f8d3fb27 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>
@@ -24,6 +25,16 @@ 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
{
@@ -43,6 +54,11 @@ 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 +70,27 @@ 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
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-08 02:08:19 +0000