def _get_runner():
"""Get the honggfuzz runner."""
honggfuzz_path = os.path.join(environment.get_value('BUILD_DIR'), 'honggfuzz')
if not os.path.exists(honggfuzz_path):
raise HonggfuzzError('honggfuzz not found in build')
os.chmod(honggfuzz_path, 0o755)
return new_process.UnicodeProcessRunner(honggfuzz_path)
def _run_with_interpreter_if_needed(fuzzer_path, args, max_time):
"""Execute the fuzzer script with an interpreter, or invoke it directly."""
interpreter = shell.get_interpreter(fuzzer_path)
if interpreter:
executable = interpreter
args.insert(0, fuzzer_path)
else:
executable = fuzzer_path
runner = new_process.UnicodeProcessRunner(executable)
return runner.run_and_wait(timeout=max_time, additional_args=args)
def reproduce(self, target_path, input_path, arguments, max_time): # pylint: disable=unused-argument
"""Reproduce a crash given an input.
Args:
target_path: Path to the target.
input_path: Path to the reproducer input.
arguments: Additional arguments needed for reproduction.
max_time: Maximum allowed time for the reproduction.
Returns:
A ReproduceResult.
"""
os.chmod(target_path, 0o775)
runner = new_process.UnicodeProcessRunner(target_path)
with open(input_path) as f:
result = runner.run_and_wait(timeout=max_time, stdin=f)
return engine.ReproduceResult(result.command, result.return_code,
result.time_executed, result.output)