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56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
// Copyright (c) 2017-2025, University of Cincinnati, developed by Henry Schreiner
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// under NSF AWARD 1414736 and by the respective contributors.
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// All rights reserved.
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//
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// SPDX-License-Identifier: BSD-3-Clause
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#include "fuzzApp.hpp"
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#include <CLI/CLI.hpp>
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#include <cstring>
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#include <exception>
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#include <string>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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if(Size == 0) {
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return 0;
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}
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std::string parseString(reinterpret_cast<const char *>(Data), Size);
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CLI::FuzzApp fuzzdata;
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CLI::FuzzApp fuzzdata2;
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auto app = fuzzdata.generateApp();
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auto app2 = fuzzdata2.generateApp();
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std::size_t pstring_start{0};
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try {
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pstring_start = fuzzdata.add_custom_options(app.get(), parseString);
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} catch(const CLI::ConstructionError &e) {
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return 0; // Non-zero return values are reserved for future use.
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}
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try {
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if(pstring_start > 0) {
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app->parse(parseString.substr(pstring_start));
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} else {
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app->parse(parseString);
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}
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} catch(const CLI::ParseError &e) {
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//(app)->exit(e);
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// this just indicates we caught an error known by CLI
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return 0; // Non-zero return values are reserved for future use.
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}
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// should be able to write the config to a file and read from it again
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std::string configOut = app->config_to_str();
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app->clear();
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std::stringstream out(configOut);
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if(pstring_start > 0) {
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fuzzdata2.add_custom_options(app2.get(), parseString);
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}
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app2->parse_from_stream(out);
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auto result = fuzzdata2.compare(fuzzdata);
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if(!result) {
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throw CLI::ValidationError("fuzzer", "file input results don't match parse results");
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}
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return 0;
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}
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