blob: 23d2eeec2c4b972eeb6c82c086f7a6604f803567 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
* 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.android;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.Math;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
public class DexFileManager {
private final static int MAX_READ_LENGTH = 2000000;
public static byte[] getBytecodeFromDex(String jarPath, String dexFile) throws IOException {
try (JarFile jarFile = new JarFile(jarPath)) {
JarEntry entry = jarFile.stream()
.filter(jarEntry -> jarEntry.getName().equals(dexFile))
.findFirst()
.orElse(null);
if (entry == null) {
throw new IOException("Could not find dex file: " + dexFile);
}
try (InputStream is = jarFile.getInputStream(entry)) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[64 * 104 * 1024];
int read;
while ((read = is.read(buffer)) != -1) {
out.write(buffer, 0, read);
}
return out.toByteArray();
}
}
}
public static String[] getDexFilesForJar(String jarpath) throws IOException {
try (JarFile jarFile = new JarFile(jarpath)) {
return jarFile.stream()
.map(JarEntry::getName)
.filter(entry -> entry.endsWith(".dex"))
.toArray(String[] ::new);
}
}
}
|