45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// Copyright 2021 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "ExampleFuzzerNative.h"
|
|
|
|
#include <limits>
|
|
#include <string>
|
|
|
|
// simple function containing a crash that requires coverage and string compare
|
|
// instrumentation for the fuzzer to find
|
|
__attribute__((optnone)) void parseInternal(const std::string &input) {
|
|
constexpr int bar = std::numeric_limits<int>::max() - 5;
|
|
// Crashes with UBSan.
|
|
if (bar + input[0] == 300) {
|
|
return;
|
|
}
|
|
if (input[0] == 'a' && input[1] == 'b' && input[5] == 'c') {
|
|
if (input.find("secret_in_native_library") != std::string::npos) {
|
|
// Crashes with ASan.
|
|
[[maybe_unused]] char foo = input[input.size() + 2];
|
|
}
|
|
}
|
|
}
|
|
|
|
JNIEXPORT jboolean JNICALL Java_ExampleFuzzerNative_parse(
|
|
JNIEnv *env, jobject o, jstring bytes) {
|
|
const char *input(env->GetStringUTFChars(bytes, nullptr));
|
|
parseInternal(input);
|
|
env->ReleaseStringUTFChars(bytes, input);
|
|
return false;
|
|
}
|