31 #if defined(PROVIDE_FUZZ_MAIN_FUNCTION) && defined(__AFL_FUZZ_INIT)
46 static std::vector<const char*>
g_args;
48 static void SetArgs(
int argc,
char** argv) {
49 for (
int i = 1; i < argc; ++i) {
52 if (strlen(argv[i]) > 2 && argv[i][0] ==
'-' && argv[i][1] ==
'-') {
69 static std::map<std::string_view, FuzzTarget> g_fuzz_targets;
70 return g_fuzz_targets;
85 CreateSock = [](
const sa_family_t&) -> std::unique_ptr<Sock> { std::terminate(); };
95 bool should_exit{
false};
96 if (std::getenv(
"PRINT_ALL_FUZZ_TARGETS_AND_ABORT")) {
98 if (
t.opts.hidden)
continue;
99 std::cout <<
name << std::endl;
103 if (
const char* out_path = std::getenv(
"WRITE_ALL_FUZZ_TARGETS_AND_ABORT")) {
104 std::cout <<
"Writing all fuzz target names to '" << out_path <<
"'." << std::endl;
105 std::ofstream out_stream{out_path, std::ios::binary};
107 if (
t.opts.hidden)
continue;
108 out_stream <<
name << std::endl;
115 if (
const auto* env_fuzz{std::getenv(
"FUZZ")}) {
117 static std::string g_copy{env_fuzz};
120 std::cerr <<
"Must select fuzz target with the FUZZ env var." << std::endl;
121 std::cerr <<
"Hint: Set the PRINT_ALL_FUZZ_TARGETS_AND_ABORT=1 env var to see all compiled targets." << std::endl;
122 std::exit(EXIT_FAILURE);
126 std::cerr <<
"No fuzz target compiled for " <<
g_fuzz_target <<
"." << std::endl;
127 std::exit(EXIT_FAILURE);
131 it->second.opts.init();
134 #if defined(PROVIDE_FUZZ_MAIN_FUNCTION)
135 static bool read_stdin(std::vector<uint8_t>& data)
137 std::istream::char_type buffer[1024];
138 std::streamsize length;
139 while ((std::cin.read(buffer, 1024), length = std::cin.gcount()) > 0) {
140 data.insert(data.end(), buffer, buffer + length);
146 #if defined(PROVIDE_FUZZ_MAIN_FUNCTION) && !defined(__AFL_LOOP)
147 static bool read_file(
fs::path p, std::vector<uint8_t>& data)
149 uint8_t buffer[1024];
151 if (f ==
nullptr)
return false;
153 const size_t length = fread(buffer,
sizeof(uint8_t),
sizeof(buffer), f);
154 if (ferror(f))
return false;
155 data.insert(data.end(), buffer, buffer + length);
162 #if defined(PROVIDE_FUZZ_MAIN_FUNCTION) && !defined(__AFL_LOOP)
164 void signal_handler(
int signal)
166 if (signal == SIGABRT) {
167 std::cerr <<
"Error processing input " << g_input_path << std::endl;
169 std::cerr <<
"Unexpected signal " << signal <<
" received\n";
171 std::_Exit(EXIT_FAILURE);
179 test_one_input({data, size});
191 #if defined(PROVIDE_FUZZ_MAIN_FUNCTION)
192 int main(
int argc,
char** argv)
199 const uint8_t* buffer = __AFL_FUZZ_TESTCASE_BUF;
200 while (__AFL_LOOP(100000)) {
201 size_t buffer_len = __AFL_FUZZ_TESTCASE_LEN;
202 test_one_input({buffer, buffer_len});
205 std::vector<uint8_t> buffer;
207 if (!read_stdin(buffer)) {
210 test_one_input(buffer);
213 std::signal(SIGABRT, signal_handler);
214 const auto start_time{Now<SteadySeconds>()};
216 for (
int i = 1; i < argc; ++i) {
218 if (fs::is_directory(input_path)) {
219 for (fs::directory_iterator it(input_path); it != fs::directory_iterator(); ++it) {
220 if (!fs::is_regular_file(it->path()))
continue;
221 g_input_path = it->
path();
222 Assert(read_file(it->path(), buffer));
223 test_one_input(buffer);
228 g_input_path = input_path;
229 Assert(read_file(input_path, buffer));
230 test_one_input(buffer);
235 const auto end_time{Now<SteadySeconds>()};
236 std::cout <<
g_fuzz_target <<
": succeeded against " << tested <<
" files in " <<
count_seconds(end_time - start_time) <<
"s." << std::endl;
int main(int argc, char **argv)
#define Assert(val)
Identity function.
Path class wrapper to block calls to the fs::path(std::string) implicit constructor and the fs::path:...
path(std::filesystem::path path)
void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, FuzzTargetOptions opts)
const std::function< void(const std::string &)> G_TEST_LOG_FUN
This is connected to the logger.
static const TypeTestOneInput * g_test_one_input
static void SetArgs(int argc, char **argv)
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
int LLVMFuzzerInitialize(int *argc, char ***argv)
static std::string_view g_fuzz_target
static std::vector< const char * > g_args
A copy of the command line arguments that start with --.
const std::function< std::vector< const char * >)> G_TEST_COMMAND_LINE_ARGUMENTS
Retrieve the command line arguments.
const std::function< std::string()> G_TEST_GET_FULL_NAME
Retrieve the unit test name.
std::function< void(FuzzBufferType)> TypeTestOneInput
FILE * fopen(const fs::path &p, const char *mode)
std::vector< CNetAddr > WrappedGetAddrInfo(const std::string &name, bool allow_lookup)
Wrapper for getaddrinfo(3).
std::function< std::unique_ptr< Sock >const sa_family_t &)> CreateSock
Socket factory.
const TypeTestOneInput test_one_input
const FuzzTargetOptions opts
constexpr int64_t count_seconds(std::chrono::seconds t)