unplugged-system/tools/security/fuzzing/brotli_java_compress_fuzzer/BrotliJavaCompressFuzzer.java

43 lines
1.4 KiB
Java

/*
* Copyright (C) 2022 The Android Open Source Project
*
* 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.
*/
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import java.io.IOException;
import org.brotli.wrapper.enc.Encoder;
public class BrotliJavaCompressFuzzer {
static {
System.loadLibrary("brotli_encoder_jni");
}
public static void fuzzerTestOneInput(FuzzedDataProvider data) throws IOException{
// quality range for brotli is limited in the original library
int quality = data.consumeInt(-1, 11);
// similar to quality, window size is also limited
int lgwin = data.consumeInt(10, 24);
boolean pickDefaultWin = data.consumeBoolean();
if (pickDefaultWin) {
lgwin = -1;
}
byte[] rawData = data.consumeRemainingAsBytes();
Encoder.Parameters params = new Encoder.Parameters();
params.setQuality(quality);
params.setWindow(lgwin);
Encoder.compress(rawData, params);
}
}