OdexDependencies.java revision 0808ee81c6d62ceaf2716d5f3bb67e570a354587 
1/*
2 * [The "BSD licence"]
3 * Copyright (c) 2010 Ben Gruver
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29package org.jf.dexlib;
30
31import org.jf.dexlib.Util.Input;
32
33import java.io.UnsupportedEncodingException;
34import java.util.Arrays;
35
36public class OdexDependencies {
37    public final int modificationTime;
38    public final int crc;
39    public final int dalvikBuild;
40
41    private final String[] dependencies;
42    private final byte[][] dependencyChecksums;
43
44    public OdexDependencies (Input in) {
45        modificationTime = in.readInt();
46        crc = in.readInt();
47        dalvikBuild = in.readInt();
48
49        int dependencyCount = in.readInt();
50
51        dependencies = new String[dependencyCount];
52        dependencyChecksums = new byte[dependencyCount][];
53
54        for (int i=0; i<dependencyCount; i++) {
55            int stringLength = in.readInt();
56
57            try {
58                dependencies[i] = new String(in.readBytes(stringLength), 0, stringLength-1, "US-ASCII");
59            } catch (UnsupportedEncodingException ex) {
60                throw new RuntimeException(ex);
61            }
62            dependencyChecksums[i] = in.readBytes(20);
63        }
64    }
65
66    public int getDependencyCount() {
67        return dependencies.length;
68    }
69
70    public String getDependency(int index) {
71        return dependencies[index];
72    }
73
74    public byte[] getDependencyChecksum(int index) {
75        return dependencyChecksums[index].clone();
76    }
77}
78