1  // Copyright (c) 2009-present 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 <pubkey.h>
 6  #include <script/interpreter.h>
 7  #include <test/fuzz/FuzzedDataProvider.h>
 8  #include <test/fuzz/fuzz.h>
 9  
10  #include <limits>
11  
12  FUZZ_TARGET(eval_script)
13  {
14      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
15      const auto flags = script_verify_flags::from_int(fuzzed_data_provider.ConsumeIntegral<script_verify_flags::value_type>());
16      const std::vector<uint8_t> script_bytes = [&] {
17          if (fuzzed_data_provider.remaining_bytes() != 0) {
18              return fuzzed_data_provider.ConsumeRemainingBytes<uint8_t>();
19          } else {
20              // Avoid UBSan warning:
21              //   test/fuzz/FuzzedDataProvider.h:212:17: runtime error: null pointer passed as argument 1, which is declared to never be null
22              //   /usr/include/string.h:43:28: note: nonnull attribute specified here
23              return std::vector<uint8_t>();
24          }
25      }();
26      const CScript script(script_bytes.begin(), script_bytes.end());
27      for (const auto sig_version : {SigVersion::BASE, SigVersion::WITNESS_V0}) {
28          std::vector<std::vector<unsigned char>> stack;
29          (void)EvalScript(stack, script, flags, BaseSignatureChecker(), sig_version, nullptr);
30      }
31  }