1 /* 2 * Copyright 2023 Code Intelligence GmbH 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.code_intelligence.jazzer.agent; 18 19 import java.io.File; 20 import java.io.IOException; 21 import java.io.InputStream; 22 import java.nio.file.Files; 23 import java.nio.file.StandardCopyOption; 24 import java.util.jar.JarFile; 25 26 final class AgentUtils { 27 private static final String BOOTSTRAP_JAR = 28 "/com/code_intelligence/jazzer/runtime/jazzer_bootstrap.jar"; 29 extractBootstrapJar()30 public static JarFile extractBootstrapJar() { 31 try (InputStream bootstrapJarStream = AgentUtils.class.getResourceAsStream(BOOTSTRAP_JAR)) { 32 if (bootstrapJarStream == null) { 33 throw new IllegalStateException("Failed to find Jazzer agent bootstrap jar in resources"); 34 } 35 File bootstrapJar = Files.createTempFile("jazzer-agent-", ".jar").toFile(); 36 bootstrapJar.deleteOnExit(); 37 Files.copy(bootstrapJarStream, bootstrapJar.toPath(), StandardCopyOption.REPLACE_EXISTING); 38 return new JarFile(bootstrapJar); 39 } catch (IOException e) { 40 throw new IllegalStateException("Failed to extract Jazzer agent bootstrap jar", e); 41 } 42 } 43 AgentUtils()44 private AgentUtils() {} 45 } 46