1 files changed, 211 insertions, 0 deletions
diff --git a/agent/src/main/java/com/code_intelligence/jazzer/api/CannedFuzzedDataProvider.java b/agent/src/main/java/com/code_intelligence/jazzer/api/CannedFuzzedDataProvider.java
new file mode 100644
index 00000000..7209a497
--- /dev/null
+++ b/agent/src/main/java/com/code_intelligence/jazzer/api/CannedFuzzedDataProvider.java
@@ -0,0 +1,211 @@
+// 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();
+  }
+}