Line data    Source code

       1             : // Copyright (c) 2020-2021 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <merkleblock.h>
       6             : #include <test/fuzz/FuzzedDataProvider.h>
       7             : #include <test/fuzz/fuzz.h>
       8             : #include <test/fuzz/util.h>
       9             : #include <uint256.h>
      10             : 
      11             : #include <cstdint>
      12             : #include <optional>
      13             : #include <string>
      14             : #include <vector>
      15             : 
      16           4 : FUZZ_TARGET(merkleblock)
      17             : {
      18           0 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      19           0 :     CPartialMerkleTree partial_merkle_tree;
      20           0 :     CallOneOf(
      21             :         fuzzed_data_provider,
      22           0 :         [&] {
      23           0 :             const std::optional<CPartialMerkleTree> opt_partial_merkle_tree = ConsumeDeserializable<CPartialMerkleTree>(fuzzed_data_provider);
      24           0 :             if (opt_partial_merkle_tree) {
      25           2 :                 partial_merkle_tree = *opt_partial_merkle_tree;
      26           0 :             }
      27           0 :         },
      28           0 :         [&] {
      29           0 :             CMerkleBlock merkle_block;
      30           0 :             const std::optional<CBlock> opt_block = ConsumeDeserializable<CBlock>(fuzzed_data_provider);
      31           0 :             CBloomFilter bloom_filter;
      32           0 :             std::set<uint256> txids;
      33           0 :             if (opt_block && !opt_block->vtx.empty()) {
      34           0 :                 if (fuzzed_data_provider.ConsumeBool()) {
      35           0 :                     merkle_block = CMerkleBlock{*opt_block, bloom_filter};
      36           0 :                 } else if (fuzzed_data_provider.ConsumeBool()) {
      37           0 :                     LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
      38           0 :                         txids.insert(ConsumeUInt256(fuzzed_data_provider));
      39           0 :                     }
      40           0 :                     merkle_block = CMerkleBlock{*opt_block, txids};
      41           0 :                 }
      42           0 :             }
      43           0 :             partial_merkle_tree = merkle_block.txn;
      44           0 :         });
      45           0 :     (void)partial_merkle_tree.GetNumTransactions();
      46           0 :     std::vector<uint256> matches;
      47           0 :     std::vector<unsigned int> indices;
      48           0 :     (void)partial_merkle_tree.ExtractMatches(matches, indices);
      49           0 : }