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system.cpp
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system.cpp
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// Copyright (c) 2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <util/system.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
namespace {
std::string GetArgumentName(const std::string &name) {
size_t idx = name.find('=');
if (idx == std::string::npos) {
idx = name.size();
}
return name.substr(0, idx);
}
} // namespace
void test_one_input(const std::vector<uint8_t> &buffer) {
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
ArgsManager args_manager{};
if (fuzzed_data_provider.ConsumeBool()) {
SetupHelpOptions(args_manager);
}
while (fuzzed_data_provider.ConsumeBool()) {
switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 7)) {
case 0: {
args_manager.SelectConfigNetwork(
fuzzed_data_provider.ConsumeRandomLengthString(16));
break;
}
case 1: {
args_manager.SoftSetArg(
fuzzed_data_provider.ConsumeRandomLengthString(16),
fuzzed_data_provider.ConsumeRandomLengthString(16));
break;
}
case 2: {
args_manager.ForceSetArg(
fuzzed_data_provider.ConsumeRandomLengthString(16),
fuzzed_data_provider.ConsumeRandomLengthString(16));
break;
}
case 3: {
args_manager.SoftSetBoolArg(
fuzzed_data_provider.ConsumeRandomLengthString(16),
fuzzed_data_provider.ConsumeBool());
break;
}
case 4: {
const OptionsCategory options_category =
fuzzed_data_provider.PickValueInArray<OptionsCategory>(
{OptionsCategory::OPTIONS, OptionsCategory::CONNECTION,
OptionsCategory::WALLET,
OptionsCategory::WALLET_DEBUG_TEST,
OptionsCategory::ZMQ, OptionsCategory::DEBUG_TEST,
OptionsCategory::CHAINPARAMS,
OptionsCategory::NODE_RELAY,
OptionsCategory::BLOCK_CREATION, OptionsCategory::RPC,
OptionsCategory::GUI, OptionsCategory::COMMANDS,
OptionsCategory::REGISTER_COMMANDS,
OptionsCategory::HIDDEN});
// Avoid hitting:
// util/system.cpp:425: void ArgsManager::AddArg(const
// std::string &, const std::string &, unsigned int, const
// OptionsCategory &): Assertion `ret.second' failed.
const std::string argument_name = GetArgumentName(
fuzzed_data_provider.ConsumeRandomLengthString(16));
if (args_manager.GetArgFlags(argument_name) != std::nullopt) {
break;
}
args_manager.AddArg(
argument_name,
fuzzed_data_provider.ConsumeRandomLengthString(16),
fuzzed_data_provider.ConsumeIntegral<unsigned int>(),
options_category);
break;
}
case 5: {
// Avoid hitting:
// util/system.cpp:425: void ArgsManager::AddArg(const
// std::string &, const std::string &, unsigned int, const
// OptionsCategory &): Assertion `ret.second' failed.
const std::vector<std::string> names =
ConsumeRandomLengthStringVector(fuzzed_data_provider);
std::vector<std::string> hidden_arguments;
for (const std::string &name : names) {
const std::string hidden_argument = GetArgumentName(name);
if (args_manager.GetArgFlags(hidden_argument) !=
std::nullopt) {
continue;
}
if (std::find(hidden_arguments.begin(),
hidden_arguments.end(),
hidden_argument) != hidden_arguments.end()) {
continue;
}
hidden_arguments.push_back(hidden_argument);
}
args_manager.AddHiddenArgs(hidden_arguments);
break;
}
case 6: {
args_manager.ClearArgs();
break;
}
case 7: {
const std::vector<std::string> random_arguments =
ConsumeRandomLengthStringVector(fuzzed_data_provider);
std::vector<const char *> argv;
argv.reserve(random_arguments.size());
for (const std::string &random_argument : random_arguments) {
argv.push_back(random_argument.c_str());
}
try {
std::string error;
(void)args_manager.ParseParameters(argv.size(), argv.data(),
error);
} catch (const std::logic_error &) {
}
break;
}
}
}
const std::string s1 = fuzzed_data_provider.ConsumeRandomLengthString(16);
const std::string s2 = fuzzed_data_provider.ConsumeRandomLengthString(16);
const int64_t i64 = fuzzed_data_provider.ConsumeIntegral<int64_t>();
const bool b = fuzzed_data_provider.ConsumeBool();
(void)args_manager.GetIntArg(s1, i64);
(void)args_manager.GetArg(s1, s2);
(void)args_manager.GetArgFlags(s1);
(void)args_manager.GetArgs(s1);
(void)args_manager.GetBoolArg(s1, b);
try {
(void)args_manager.GetChainName();
} catch (const std::runtime_error &) {
}
(void)args_manager.GetHelpMessage();
(void)args_manager.GetUnrecognizedSections();
(void)args_manager.GetUnsuitableSectionOnlyArgs();
(void)args_manager.IsArgNegated(s1);
(void)args_manager.IsArgSet(s1);
(void)HelpRequested(args_manager);
}

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