1  // Copyright (c) 2019-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 <core_io.h>
 6  #include <primitives/transaction.h>
 7  #include <test/fuzz/fuzz.h>
 8  #include <util/strencodings.h>
 9  
10  #include <cassert>
11  #include <cstdint>
12  #include <string>
13  #include <vector>
14  
15  FUZZ_TARGET(decode_tx)
16  {
17      const std::string tx_hex = HexStr(buffer);
18      CMutableTransaction mtx;
19      const bool result_none = DecodeHexTx(mtx, tx_hex, false, false);
20      const bool result_try_witness = DecodeHexTx(mtx, tx_hex, false, true);
21      const bool result_try_witness_and_maybe_no_witness = DecodeHexTx(mtx, tx_hex, true, true);
22      CMutableTransaction no_witness_mtx;
23      const bool result_try_no_witness = DecodeHexTx(no_witness_mtx, tx_hex, true, false);
24      assert(!result_none);
25      if (result_try_witness_and_maybe_no_witness) {
26          assert(result_try_no_witness || result_try_witness);
27      }
28      if (result_try_no_witness) {
29          assert(!no_witness_mtx.HasWitness());
30          assert(result_try_witness_and_maybe_no_witness);
31      }
32  }