1 files changed, 45 insertions, 0 deletions
diff --git a/src/main/java/com/code_intelligence/jazzer/agent/AgentUtils.java b/src/main/java/com/code_intelligence/jazzer/agent/AgentUtils.java
new file mode 100644
index 00000000..e654252a
--- /dev/null
+++ b/src/main/java/com/code_intelligence/jazzer/agent/AgentUtils.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 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.agent;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
+import java.util.jar.JarFile;
+
+final class AgentUtils {
+  private static final String BOOTSTRAP_JAR =
+      "/com/code_intelligence/jazzer/runtime/jazzer_bootstrap.jar";
+
+  public static JarFile extractBootstrapJar() {
+    try (InputStream bootstrapJarStream = AgentUtils.class.getResourceAsStream(BOOTSTRAP_JAR)) {
+      if (bootstrapJarStream == null) {
+        throw new IllegalStateException("Failed to find Jazzer agent bootstrap jar in resources");
+      }
+      File bootstrapJar = Files.createTempFile("jazzer-agent-", ".jar").toFile();
+      bootstrapJar.deleteOnExit();
+      Files.copy(bootstrapJarStream, bootstrapJar.toPath(), StandardCopyOption.REPLACE_EXISTING);
+      return new JarFile(bootstrapJar);
+    } catch (IOException e) {
+      throw new IllegalStateException("Failed to extract Jazzer agent bootstrap jar", e);
+    }
+  }
+
+  private AgentUtils() {}
+}