mirror of
https://github.com/CLIUtils/CLI11.git
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f7600953d4
This is the next phase of the fuzzer. It runs a round trip and makes
sure that the config files generated by the app will load into the same
results, to test full round trip on the config files.
Issues fixed
- fix a bug in the string escape code caught by initial round trip tests
- resolve inconsistencies in handling of {} for empty vector indication
between config and cli parsing
---------
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
// Copyright (c) 2017-2024, 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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std::string optionString;
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std::string flagString;
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if(parseString.size() > 25) {
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optionString = parseString.substr(0, 25);
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parseString.erase(0, 25);
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}
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if(parseString.size() > 25) {
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flagString = parseString.substr(0, 25);
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parseString.erase(0, 25);
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}
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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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try {
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if(!optionString.empty()) {
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app->add_option(optionString, fuzzdata.buffer);
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app2->add_option(optionString, fuzzdata2.buffer);
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}
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if(!flagString.empty()) {
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app->add_flag(flagString, fuzzdata.intbuffer);
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app2->add_flag(flagString, fuzzdata2.intbuffer);
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}
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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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app->parse(parseString);
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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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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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