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// Copyright 2021 Code Intelligence GmbH
//
// 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.
package com.code_intelligence.jazzer.api;
import java.io.*;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Iterator;
import java.util.List;
/**
* Replays recorded FuzzedDataProvider invocations that were executed while fuzzing.
* Note: This class is only meant to be used by Jazzer's generated reproducers.
*/
final public class CannedFuzzedDataProvider implements FuzzedDataProvider {
private final Iterator<Object> nextReply;
public CannedFuzzedDataProvider(String can) {
byte[] rawIn = Base64.getDecoder().decode(can);
ArrayList<Object> recordedReplies;
try (ByteArrayInputStream byteStream = new ByteArrayInputStream(rawIn)) {
try (ObjectInputStream objectStream = new ObjectInputStream(byteStream)) {
recordedReplies = (ArrayList<Object>) objectStream.readObject();
}
} catch (IOException | ClassNotFoundException e) {
throw new RuntimeException(e);
}
nextReply = recordedReplies.iterator();
}
public static CannedFuzzedDataProvider create(List<Object> objects) {
try {
try (ByteArrayOutputStream bout = new ByteArrayOutputStream()) {
try (ObjectOutputStream out = new ObjectOutputStream(bout)) {
out.writeObject(new ArrayList<>(objects));
String base64 = Base64.getEncoder().encodeToString(bout.toByteArray());
return new CannedFuzzedDataProvider(base64);
}
}
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
@Override
public boolean consumeBoolean() {
return (boolean) nextReply.next();
}
@Override
public boolean[] consumeBooleans(int maxLength) {
return (boolean[]) nextReply.next();
}
@Override
public byte consumeByte() {
return (byte) nextReply.next();
}
@Override
public byte consumeByte(byte min, byte max) {
return (byte) nextReply.next();
}
@Override
public short consumeShort() {
return (short) nextReply.next();
}
@Override
public short consumeShort(short min, short max) {
return (short) nextReply.next();
}
@Override
public short[] consumeShorts(int maxLength) {
return (short[]) nextReply.next();
}
@Override
public int consumeInt() {
return (int) nextReply.next();
}
@Override
public int consumeInt(int min, int max) {
return (int) nextReply.next();
}
@Override
public int[] consumeInts(int maxLength) {
return (int[]) nextReply.next();
}
@Override
public long consumeLong() {
return (long) nextReply.next();
}
@Override
public long consumeLong(long min, long max) {
return (long) nextReply.next();
}
@Override
public long[] consumeLongs(int maxLength) {
return (long[]) nextReply.next();
}
@Override
public float consumeFloat() {
return (float) nextReply.next();
}
@Override
public float consumeRegularFloat() {
return (float) nextReply.next();
}
@Override
public float consumeRegularFloat(float min, float max) {
return (float) nextReply.next();
}
@Override
public float consumeProbabilityFloat() {
return (float) nextReply.next();
}
@Override
public double consumeDouble() {
return (double) nextReply.next();
}
@Override
public double consumeRegularDouble(double min, double max) {
return (double) nextReply.next();
}
@Override
public double consumeRegularDouble() {
return (double) nextReply.next();
}
@Override
public double consumeProbabilityDouble() {
return (double) nextReply.next();
}
@Override
public char consumeChar() {
return (char) nextReply.next();
}
@Override
public char consumeChar(char min, char max) {
return (char) nextReply.next();
}
@Override
public char consumeCharNoSurrogates() {
return (char) nextReply.next();
}
@Override
public String consumeAsciiString(int maxLength) {
return (String) nextReply.next();
}
@Override
public String consumeString(int maxLength) {
return (String) nextReply.next();
}
@Override
public String consumeRemainingAsAsciiString() {
return (String) nextReply.next();
}
@Override
public String consumeRemainingAsString() {
return (String) nextReply.next();
}
@Override
public byte[] consumeBytes(int maxLength) {
return (byte[]) nextReply.next();
}
@Override
public byte[] consumeRemainingAsBytes() {
return (byte[]) nextReply.next();
}
@Override
public int remainingBytes() {
return (int) nextReply.next();
}
}
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