aboutsummaryrefslogtreecommitdiff
path: root/examples/src/main/java/com/example/ExampleFuzzerHooks.java
diff options
context:
space:
mode:
Diffstat (limited to 'examples/src/main/java/com/example/ExampleFuzzerHooks.java')
-rw-r--r--examples/src/main/java/com/example/ExampleFuzzerHooks.java30
1 files changed, 30 insertions, 0 deletions
diff --git a/examples/src/main/java/com/example/ExampleFuzzerHooks.java b/examples/src/main/java/com/example/ExampleFuzzerHooks.java
new file mode 100644
index 00000000..41f16635
--- /dev/null
+++ b/examples/src/main/java/com/example/ExampleFuzzerHooks.java
@@ -0,0 +1,30 @@
+// 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.example;
+
+import com.code_intelligence.jazzer.api.HookType;
+import com.code_intelligence.jazzer.api.MethodHook;
+import java.lang.invoke.MethodHandle;
+
+public class ExampleFuzzerHooks {
+ @MethodHook(type = HookType.REPLACE, targetClassName = "java.security.SecureRandom",
+ targetMethod = "nextLong", targetMethodDescriptor = "()J")
+ public static long
+ getRandomNumber(MethodHandle handle, Object thisObject, Object[] args, int hookId) {
+ return 4; // chosen by fair dice roll.
+ // guaranteed to be random.
+ // https://xkcd.com/221/
+ }
+}