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 <script/script.h>
6 #include <test/fuzz/FuzzedDataProvider.h>
7 #include <test/fuzz/fuzz.h>
8 #include <test/fuzz/util.h>
9
10 #include <cstdint>
11 #include <string>
12 #include <vector>
13
FUZZ_TARGET(script_ops)14 FUZZ_TARGET(script_ops)
15 {
16 FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
17 CScript script_mut = ConsumeScript(fuzzed_data_provider);
18 while (fuzzed_data_provider.remaining_bytes() > 0) {
19 CallOneOf(
20 fuzzed_data_provider,
21 [&] {
22 CScript s = ConsumeScript(fuzzed_data_provider);
23 script_mut = std::move(s);
24 },
25 [&] {
26 const CScript& s = ConsumeScript(fuzzed_data_provider);
27 script_mut = s;
28 },
29 [&] {
30 script_mut << fuzzed_data_provider.ConsumeIntegral<int64_t>();
31 },
32 [&] {
33 script_mut << ConsumeOpcodeType(fuzzed_data_provider);
34 },
35 [&] {
36 script_mut << ConsumeScriptNum(fuzzed_data_provider);
37 },
38 [&] {
39 script_mut << ConsumeRandomLengthByteVector(fuzzed_data_provider);
40 },
41 [&] {
42 script_mut.clear();
43 });
44 }
45 const CScript& script = script_mut;
46 (void)script.GetSigOpCount(false);
47 (void)script.GetSigOpCount(true);
48 (void)script.GetSigOpCount(script);
49 (void)script.HasValidOps();
50 (void)script.IsPayToScriptHash();
51 (void)script.IsPayToWitnessScriptHash();
52 (void)script.IsPushOnly();
53 (void)script.IsUnspendable();
54 {
55 CScript::const_iterator pc = script.begin();
56 opcodetype opcode;
57 (void)script.GetOp(pc, opcode);
58 std::vector<uint8_t> data;
59 (void)script.GetOp(pc, opcode, data);
60 (void)script.IsPushOnly(pc);
61 }
62 {
63 int version;
64 std::vector<uint8_t> program;
65 (void)script.IsWitnessProgram(version, program);
66 }
67 }
68