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merge bitcoin#18744: Add fuzzing harnesses for various classes/functions in primitives/

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This commit is contained in:
Kittywhiskers Van Gogh 2020-04-22 19:51:42 +00:00
parent ed29a2060c
commit 7241917b6d
3 changed files with 44 additions and 0 deletions
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6
src/Makefile.test.include
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@ -843,6 +843,12 @@ test_fuzz_prefilled_transaction_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_prefilled_transaction_deserialize_LDFLAGS = $(FUZZ_SUITE_LDFLAGS_COMMON)
test_fuzz_prefilled_transaction_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
test_fuzz_primitives_transaction_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_primitives_transaction_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_primitives_transaction_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_primitives_transaction_LDFLAGS = $(FUZZ_SUITE_LDFLAGS_COMMON)
test_fuzz_primitives_transaction_SOURCES = $(FUZZ_SUITE) test/fuzz/primitives_transaction.cpp
test_fuzz_process_messages_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_process_messages_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_process_messages_LDADD = $(FUZZ_SUITE_LD_COMMON)

4
src/test/fuzz/block.cpp
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@ -55,4 +55,8 @@ void test_one_input(const std::vector<uint8_t>& buffer)
const size_t raw_memory_size = RecursiveDynamicUsage(block);
const size_t raw_memory_size_as_shared_ptr = RecursiveDynamicUsage(std::make_shared<CBlock>(block));
assert(raw_memory_size_as_shared_ptr > raw_memory_size);
CBlock block_copy = block;
block_copy.SetNull();
const bool is_null = block_copy.IsNull();
assert(is_null);
}

34
src/test/fuzz/primitives_transaction.cpp Normal file
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@ -0,0 +1,34 @@
// 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/transaction.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.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 CScript script = ConsumeScript(fuzzed_data_provider);
const Optional<COutPoint> out_point = ConsumeDeserializable<COutPoint>(fuzzed_data_provider);
if (out_point) {
const CTxIn tx_in{*out_point, script, fuzzed_data_provider.ConsumeIntegral<uint32_t>()};
(void)tx_in;
}
const CTxOut tx_out_1{ConsumeMoney(fuzzed_data_provider), script};
const CTxOut tx_out_2{ConsumeMoney(fuzzed_data_provider), ConsumeScript(fuzzed_data_provider)};
assert((tx_out_1 == tx_out_2) != (tx_out_1 != tx_out_2));
const Optional<CMutableTransaction> mutable_tx_1 = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
const Optional<CMutableTransaction> mutable_tx_2 = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
if (mutable_tx_1 && mutable_tx_2) {
const CTransaction tx_1{*mutable_tx_1};
const CTransaction tx_2{*mutable_tx_2};
assert((tx_1 == tx_2) != (tx_1 != tx_2));
}
}