Bitcoin Core  24.99.0
P2P Digital Currency
eval_script.cpp
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1 // Copyright (c) 2009-2021 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 <pubkey.h>
6 #include <script/interpreter.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 unsigned int flags = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
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 }
int flags
Definition: bitcoin-tx.cpp:525
Serialized script, used inside transaction inputs and outputs.
Definition: script.h:411
std::vector< T > ConsumeRemainingBytes()
FUZZ_TARGET(eval_script)
Definition: eval_script.cpp:12
bool EvalScript(std::vector< std::vector< unsigned char > > &stack, const CScript &script, unsigned int flags, const BaseSignatureChecker &checker, SigVersion sigversion, ScriptExecutionData &execdata, ScriptError *serror)
@ BASE
Bare scripts and BIP16 P2SH-wrapped redeemscripts.
@ WITNESS_V0
Witness v0 (P2WPKH and P2WSH); see BIP 141.