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 <script/parsing.h>
 6  #include <test/fuzz/FuzzedDataProvider.h>
 7  #include <test/fuzz/fuzz.h>
 8  #include <util/byte_units.h>
 9  #include <util/string.h>
10  
11  using util::Split;
12  
13  FUZZ_TARGET(script_parsing)
14  {
15      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
16      const size_t query_size = fuzzed_data_provider.ConsumeIntegral<size_t>();
17      const std::string query = fuzzed_data_provider.ConsumeBytesAsString(std::min<size_t>(query_size, 1_MiB));
18      const std::string span_str = fuzzed_data_provider.ConsumeRemainingBytesAsString();
19      const std::span<const char> const_span{span_str};
20  
21      std::span<const char> mut_span = const_span;
22      (void)script::Const(query, mut_span);
23  
24      mut_span = const_span;
25      (void)script::Func(query, mut_span);
26  
27      mut_span = const_span;
28      (void)script::Expr(mut_span);
29  
30      if (!query.empty()) {
31          mut_span = const_span;
32          (void)Split(mut_span, query.front());
33      }
34  }