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// Copyright (c) 2020-2021 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 <merkleblock.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <uint256.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
FUZZ_TARGET(merkleblock)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
CPartialMerkleTree partial_merkle_tree;
CallOneOf(
fuzzed_data_provider,
[&] {
const std::optional<CPartialMerkleTree> opt_partial_merkle_tree = ConsumeDeserializable<CPartialMerkleTree>(fuzzed_data_provider);
if (opt_partial_merkle_tree) {
partial_merkle_tree = *opt_partial_merkle_tree;
}
},
[&] {
CMerkleBlock merkle_block;
const std::optional<CBlock> opt_block = ConsumeDeserializable<CBlock>(fuzzed_data_provider, TX_WITH_WITNESS);
CBloomFilter bloom_filter;
std::set<Txid> txids;
if (opt_block && !opt_block->vtx.empty()) {
if (fuzzed_data_provider.ConsumeBool()) {
merkle_block = CMerkleBlock{*opt_block, bloom_filter};
} else if (fuzzed_data_provider.ConsumeBool()) {
LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
txids.insert(Txid::FromUint256(ConsumeUInt256(fuzzed_data_provider)));
}
merkle_block = CMerkleBlock{*opt_block, txids};
}
}
partial_merkle_tree = merkle_block.txn;
});
(void)partial_merkle_tree.GetNumTransactions();
std::vector<uint256> matches;
std::vector<unsigned int> indices;
(void)partial_merkle_tree.ExtractMatches(matches, indices);
}
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