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CLI11/fuzz/fuzzApp.cpp
Philip Top 2d79205521
Fix some minor fuzzing issues. (#1138)
One in the fuzz check handling of NaN's and a pathway to generate a
HorribleError.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2025-03-11 18:21:46 -07:00

505 lines
16 KiB
C++

// Copyright (c) 2017-2025, University of Cincinnati, developed by Henry Schreiner
// under NSF AWARD 1414736 and by the respective contributors.
// All rights reserved.
//
// SPDX-License-Identifier: BSD-3-Clause
#include "fuzzApp.hpp"
#include <algorithm>
namespace CLI {
/*
int32_t val32{0};
int16_t val16{0};
int8_t val8{0};
int64_t val64{0};
uint32_t uval32{0};
uint16_t uval16{0};
uint8_t uval8{0};
uint64_t uval64{0};
std::atomic<int64_t> atomicval64{0};
std::atomic<uint64_t> atomicuval64{0};
double v1{0};
float v2{0};
std::vector<double> vv1;
std::vector<std::string> vstr;
std::vector<std::vector<double>> vecvecd;
std::vector<std::vector<std::string>> vvs;
std::optional<double> od1;
std::optional<std::string> ods;
std::pair<double, std::string> p1;
std::pair<std::vector<double>, std::string> p2;
std::tuple<int64_t, uint16_t, std::optional<double>> t1;
std::tuple<std::tuple<std::tuple<std::string, double, std::vector<int>>,std::string, double>,std::vector<int>,
std::optional<std::string>> tcomplex; std::string_view vstrv;
bool flag1{false};
int flagCnt{0};
std::atomic<bool> flagAtomic{false};
*/
std::shared_ptr<CLI::App> FuzzApp::generateApp() {
auto fApp = std::make_shared<CLI::App>("fuzzing App", "fuzzer");
fApp->set_config("--config");
fApp->set_help_all_flag("--help-all");
fApp->add_flag("-a,--flag");
fApp->add_flag("-b,--flag2,!--nflag2", flag1);
fApp->add_flag("-c{34},--flag3{1}", flagCnt)->disable_flag_override();
fApp->add_flag("-e,--flagA", flagAtomic);
fApp->add_flag("--atd", doubleAtomic);
fApp->add_option("-d,--opt1", val8);
fApp->add_option("--opt2", val16);
fApp->add_option("--opt3", val32);
fApp->add_option("--opt4", val64);
fApp->add_option("--opt5", uval8);
fApp->add_option("--opt6", uval16);
fApp->add_option("--opt7", uval32);
fApp->add_option("--opt8", uval64);
fApp->add_option("--aopt1", atomicval64);
fApp->add_option("--aopt2", atomicuval64);
fApp->add_option("--dopt1", v1);
fApp->add_option("--dopt2", v2);
auto *vgroup = fApp->add_option_group("vectors");
vgroup->add_option("--vopt1", vv1);
vgroup->add_option("--vopt2", vvs)->inject_separator();
vgroup->add_option("--vopt3", vstr);
vgroup->add_option("--vopt4", vecvecd)->inject_separator();
fApp->add_option("--oopt1", od1);
fApp->add_option("--oopt2", ods);
fApp->add_option("--ovopt", ovs);
fApp->add_option("--tup1", p1);
fApp->add_option("--tup2", t1);
fApp->add_option("--tup4", tcomplex);
vgroup->add_option("--vtup", vectup);
fApp->add_option("--dwrap", dwrap);
fApp->add_option("--iwrap", iwrap);
fApp->add_option("--swrap", swrap);
// file checks
fApp->add_option("--dexists")->check(ExistingDirectory);
fApp->add_option("--fexists")->check(ExistingFile);
fApp->add_option("--fnexists")->check(NonexistentPath);
auto *sub = fApp->add_subcommand("sub1");
sub->add_option("--sopt2", val16)->check(Range(1, 10));
sub->add_option("--sopt3", val32)->check(PositiveNumber);
sub->add_option("--sopt4", val64)->check(NonNegativeNumber);
sub->add_option("--sopt5", uval8)->transform(Bound(6, 20));
sub->add_option("--sopt6", uval16);
sub->add_option("--sopt7", uval32);
sub->add_option("--sopt8", uval64);
sub->add_option("--saopt1", atomicval64);
sub->add_option("--saopt2", atomicuval64);
sub->add_option("--sdopt1", v1);
sub->add_option("--sdopt2", v2);
sub->add_option("--svopt1", vv1);
sub->add_option("--svopt2", vvs);
sub->add_option("--svopt3", vstr);
sub->add_option("--svopt4", vecvecd);
sub->add_option("--soopt1", od1);
sub->add_option("--soopt2", ods);
sub->add_option("--stup1", p1);
sub->add_option("--stup2", t1);
sub->add_option("--stup4", tcomplex);
sub->add_option("--svtup", vectup);
sub->add_option("--sdwrap", dwrap);
sub->add_option("--siwrap", iwrap);
auto *resgroup = fApp->add_option_group("outputOrder");
resgroup->add_option("--vA", vstrA)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::TakeAll);
resgroup->add_option("--vB", vstrB)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::TakeLast);
resgroup->add_option("--vC", vstrC)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::TakeFirst);
resgroup->add_option("--vD", vstrD)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::Reverse);
resgroup->add_option("--vS", val32)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::Sum);
resgroup->add_option("--vM", mergeBuffer)->expected(0, 2)->multi_option_policy(CLI::MultiOptionPolicy::Join);
resgroup->add_option("--vE", vstrE)->expected(2, 4)->delimiter(',');
auto *vldtr = fApp->add_option_group("validators");
validator_strings.resize(10);
vldtr->add_option("--vdtr1", validator_strings[0])->join()->check(CLI::PositiveNumber);
vldtr->add_option("--vdtr2", validator_strings[1])->join()->check(CLI::NonNegativeNumber);
vldtr->add_option("--vdtr3", validator_strings[2])->join()->check(CLI::NonexistentPath);
vldtr->add_option("--vdtr4", validator_strings[3])->join()->check(CLI::Range(7, 3456));
vldtr->add_option("--vdtr5", validator_strings[4])
->join()
->check(CLI::Range(std::string("aa"), std::string("zz"), "string range"));
vldtr->add_option("--vdtr6", validator_strings[5])->join()->check(CLI::TypeValidator<double>());
vldtr->add_option("--vdtr7", validator_strings[6])->join()->check(CLI::TypeValidator<bool>());
vldtr->add_option("--vdtr8", validator_strings[7])->join()->check(CLI::ValidIPV4);
vldtr->add_option("--vdtr9", validator_strings[8])->join()->transform(CLI::Bound(2, 255));
return fApp;
}
bool FuzzApp::compare(const FuzzApp &other) const {
if(val32 != other.val32) {
return false;
}
if(val16 != other.val16) {
return false;
}
if(val8 != other.val8) {
return false;
}
if(val64 != other.val64) {
return false;
}
if(uval32 != other.uval32) {
return false;
}
if(uval16 != other.uval16) {
return false;
}
if(uval8 != other.uval8) {
return false;
}
if(uval64 != other.uval64) {
return false;
}
if(atomicval64 != other.atomicval64) {
return false;
}
if(atomicuval64 != other.atomicuval64) {
return false;
}
if(v1 != other.v1) {
return false;
}
if(v2 != other.v2) {
return false;
}
if(vv1 != other.vv1) {
if(vv1.size() != other.vv1.size()) {
return false;
}
// need to check if they are both nan
for(std::size_t index = 0; index < vv1.size(); ++index) {
if(vv1[index] != other.vv1[index]) {
if(std::isnan(vv1[index]) && std::isnan(other.vv1[index])) {
continue;
}
return false;
}
}
}
if(vstr != other.vstr) {
return false;
}
if(vecvecd != other.vecvecd) {
return false;
}
if(vvs != other.vvs) {
return false;
}
if(od1 != other.od1) {
return false;
}
if(ods != other.ods) {
return false;
}
if(ovs != other.ovs) {
return false;
}
if(p1 != other.p1) {
return false;
}
if(p2 != other.p2) {
return false;
}
if(t1 != other.t1) {
return false;
}
if(tcomplex != other.tcomplex) {
return false;
}
if(tcomplex2 != other.tcomplex2) {
return false;
}
if(vectup != other.vectup) {
return false;
}
if(vstrv != other.vstrv) {
return false;
}
if(flag1 != other.flag1) {
return false;
}
if(flagCnt != other.flagCnt) {
return false;
}
if(flagAtomic != other.flagAtomic) {
return false;
}
if(iwrap.value() != other.iwrap.value()) {
return false;
}
if(dwrap.value() != other.dwrap.value()) {
return false;
}
if(swrap.value() != other.swrap.value()) {
return false;
}
if(buffer != other.buffer) {
return false;
}
if(intbuffer != other.intbuffer) {
return false;
}
if(doubleAtomic != other.doubleAtomic) {
return false;
}
// for testing restrictions and reduction methods
if(vstrA != other.vstrA) {
return false;
}
if(vstrB != other.vstrB) {
return false;
}
if(vstrC != other.vstrC) {
return false;
}
if(vstrD != other.vstrD) {
// the return result if reversed so it can alternate
std::vector<std::string> res = vstrD;
std::reverse(res.begin(), res.end());
if(res != other.vstrD) {
return false;
}
}
if(vstrE != other.vstrE) {
return false;
}
if(vstrF != other.vstrF) {
return false;
}
if(mergeBuffer != other.mergeBuffer) {
return false;
}
if(validator_strings != other.validator_strings) {
return false;
}
// now test custom string_options
if(custom_string_options.size() != other.custom_string_options.size()) {
return false;
}
for(std::size_t ii = 0; ii < custom_string_options.size(); ++ii) {
if(*custom_string_options[ii] != *other.custom_string_options[ii]) {
return false;
}
}
// now test custom vector_options
if(custom_vector_options.size() != other.custom_vector_options.size()) {
return false;
}
for(std::size_t ii = 0; ii < custom_vector_options.size(); ++ii) {
if(*custom_vector_options[ii] != *other.custom_vector_options[ii]) {
return false;
}
}
return true;
}
void FuzzApp::modify_option(CLI::Option *opt, const std::string &modifier_string) {
auto mod_start = modifier_string.find("modifiers=");
if(mod_start == std::string::npos) {
return;
}
auto mod_end = modifier_string.find_first_of(' ', mod_start + 1);
std::string modifiers = modifier_string.substr(mod_start + 10, mod_end - mod_start - 10);
for(const auto mod : modifiers) {
switch(mod) {
case 'r':
case 'R':
opt->required(mod < '`');
break;
case '0':
case '1':
case '2':
case '3':
case '4':
opt->expected(mod - '0');
break;
case '5':
case '6':
case '7':
case '8':
case '9':
opt->expected(opt->get_expected_min(), mod - '5');
break;
case 'c':
case 'C':
opt->ignore_case(mod < '`');
break;
case 'u':
case 'U':
opt->ignore_underscore(mod < '`');
break;
case 'f':
case 'F':
opt->disable_flag_override(mod < '`');
break;
case 'e':
case 'E':
opt->allow_extra_args(mod < '`');
break;
case ',':
case ';':
case '%':
case '#':
case '|':
case '\\':
case '~':
case ':':
opt->delimiter(mod);
break;
case 'g':
case 'G':
opt->configurable(mod < '`');
break;
case 'p':
case 'P':
opt->trigger_on_parse(mod < '`');
break;
case 't':
case 'T':
opt->multi_option_policy(CLI::MultiOptionPolicy::Throw);
break;
case 'l':
case 'L':
opt->multi_option_policy(CLI::MultiOptionPolicy::TakeLast);
break;
case 's':
case 'S':
opt->multi_option_policy(CLI::MultiOptionPolicy::TakeFirst);
break;
case 'a':
case 'A':
opt->multi_option_policy(CLI::MultiOptionPolicy::TakeAll);
break;
case 'v':
case 'V':
opt->multi_option_policy(CLI::MultiOptionPolicy::Reverse);
break;
case 'j':
case 'J':
opt->multi_option_policy(CLI::MultiOptionPolicy::Join);
break;
case '+':
opt->multi_option_policy(CLI::MultiOptionPolicy::Sum);
break;
case 'i':
opt->check(CLI::Number);
break;
case 'I':
opt->check(CLI::NonNegativeNumber);
break;
case 'w':
opt->check(!CLI::Number);
break;
default:
break;
}
}
}
//<option>name_string</option>
//<vector>name_string</vector>
//<flag>name_string</flag>
/** generate additional options based on a string config*/
std::size_t FuzzApp::add_custom_options(CLI::App *app, const std::string &description_string) {
std::size_t current_index{0};
while(description_string.size() - 5 > current_index && description_string[current_index] == '<') {
if(description_string.compare(current_index, 7, "<option") == 0) {
auto end_option = description_string.find("</option>", current_index + 8);
if(end_option == std::string::npos) {
break;
}
auto header_close = description_string.find_last_of('>', end_option);
if(header_close == std::string::npos || header_close < current_index) {
break;
}
std::string name = description_string.substr(header_close + 1, end_option - header_close - 1);
custom_string_options.push_back(std::make_shared<std::string>());
auto *opt = app->add_option(name, *(custom_string_options.back()));
if(header_close > current_index + 19) {
std::string attributes = description_string.substr(current_index + 8, header_close - 8 - current_index);
modify_option(opt, attributes);
}
current_index = end_option + 9;
} else if(description_string.compare(current_index, 5, "<flag") == 0) {
auto end_option = description_string.find("</flag>", current_index + 6);
if(end_option == std::string::npos) {
break;
}
auto header_close = description_string.find_last_of('>', end_option);
if(header_close == std::string::npos || header_close < current_index) {
break;
}
std::string name = description_string.substr(header_close + 1, end_option - header_close - 1);
custom_string_options.push_back(std::make_shared<std::string>());
auto *opt = app->add_option(name, *(custom_string_options.back()));
if(header_close > current_index + 17) {
std::string attributes = description_string.substr(current_index + 6, header_close - 6 - current_index);
modify_option(opt, attributes);
}
current_index = end_option + 7;
} else if(description_string.compare(current_index, 7, "<vector") == 0) {
auto end_option = description_string.find("</vector>", current_index + 8);
if(end_option == std::string::npos) {
break;
}
auto header_close = description_string.find_last_of('>', end_option);
if(header_close == std::string::npos || header_close < current_index) {
break;
}
std::string name = description_string.substr(header_close + 1, end_option - header_close - 1);
custom_vector_options.push_back(std::make_shared<std::vector<std::string>>());
auto *opt = app->add_option(name, *(custom_vector_options.back()));
if(header_close > current_index + 19) {
std::string attributes = description_string.substr(current_index + 8, header_close - 8 - current_index);
modify_option(opt, attributes);
}
current_index = end_option + 9;
} else {
if(isspace(description_string[current_index]) != 0) {
++current_index;
} else {
break;
}
}
}
return current_index;
}
} // namespace CLI