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 <chainparams.h>
6 #include <flatfile.h>
7 #include <test/fuzz/FuzzedDataProvider.h>
8 #include <test/fuzz/fuzz.h>
9 #include <test/fuzz/util.h>
10 #include <test/util/setup_common.h>
11 #include <validation.h>
12 
13 #include <cstdint>
14 #include <vector>
15 
16 namespace {
17 const TestingSetup* g_setup;
18 } // namespace
19 
initialize_load_external_block_file()20 void initialize_load_external_block_file()
21 {
22     static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
23     g_setup = testing_setup.get();
24 }
25 
FUZZ_TARGET_INIT(load_external_block_file,initialize_load_external_block_file)26 FUZZ_TARGET_INIT(load_external_block_file, initialize_load_external_block_file)
27 {
28     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
29     FuzzedFileProvider fuzzed_file_provider = ConsumeFile(fuzzed_data_provider);
30     FILE* fuzzed_block_file = fuzzed_file_provider.open();
31     if (fuzzed_block_file == nullptr) {
32         return;
33     }
34     FlatFilePos flat_file_pos;
35     g_setup->m_node.chainman->ActiveChainstate().LoadExternalBlockFile(fuzzed_block_file, fuzzed_data_provider.ConsumeBool() ? &flat_file_pos : nullptr);
36 }
37