1 // Copyright 2022 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/strings/escape.h" 6 7 #include <string_view> 8 9 // Prevent the optimizer from optimizing away a function call by "using" the 10 // result. 11 // 12 // TODO(crbug.com/40243629): Replace this with a more general solution. UseResult(const std::string & input)13void UseResult(const std::string& input) { 14 volatile char c; 15 if (input.length() > 0) 16 c = input[0]; 17 (void)c; 18 } 19 20 // Entry point for LibFuzzer. LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)21extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { 22 std::string_view data_string(reinterpret_cast<const char*>(data), size); 23 24 UseResult(base::EscapeQueryParamValue(data_string, /*use_plus=*/false)); 25 UseResult(base::EscapeQueryParamValue(data_string, /*use_plus=*/true)); 26 27 return 0; 28 } 29