1 /*
2  * Copyright (C) 2014 The Android Open Source Project
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 dexfuzz.rawdex;
18 
19 import java.io.IOException;
20 
21 public class ClassDefItem implements RawDexObject {
22   public static int data_size = 0x20;
23 
24   public int classIdx;
25   public int accessFlags;
26   public int superclassIdx;
27   public Offset interfacesOff;
28   public int sourceFileIdx;
29   public Offset annotationsOff;
30   public Offset classDataOff;
31   public Offset staticValuesOff;
32 
33   public static class MetaInfo {
34     public ClassDataItem classDataItem;
35   }
36 
37   public MetaInfo meta = new MetaInfo();
38 
39   @Override
read(DexRandomAccessFile file)40   public void read(DexRandomAccessFile file) throws IOException {
41     file.getOffsetTracker().getNewOffsettable(file, this);
42     classIdx = file.readUInt();
43     accessFlags = file.readUInt();
44     superclassIdx = file.readUInt();
45     interfacesOff = file.getOffsetTracker().getNewOffset(file.readUInt());
46     sourceFileIdx = file.readUInt();
47     annotationsOff = file.getOffsetTracker().getNewOffset(file.readUInt());
48     classDataOff = file.getOffsetTracker().getNewOffset(file.readUInt());
49     staticValuesOff = file.getOffsetTracker().getNewOffset(file.readUInt());
50   }
51 
52   @Override
write(DexRandomAccessFile file)53   public void write(DexRandomAccessFile file) throws IOException {
54     file.getOffsetTracker().updatePositionOfNextOffsettable(file);
55     file.writeUInt(classIdx);
56     file.writeUInt(accessFlags);
57     file.writeUInt(superclassIdx);
58     file.getOffsetTracker().tryToWriteOffset(interfacesOff, file, false /* ULEB128 */);
59     file.writeUInt(sourceFileIdx);
60     file.getOffsetTracker().tryToWriteOffset(annotationsOff, file, false /* ULEB128 */);
61     file.getOffsetTracker().tryToWriteOffset(classDataOff, file, false /* ULEB128 */);
62     file.getOffsetTracker().tryToWriteOffset(staticValuesOff, file, false /* ULEB128 */);
63   }
64 
65   @Override
incrementIndex(IndexUpdateKind kind, int insertedIdx)66   public void incrementIndex(IndexUpdateKind kind, int insertedIdx) {
67     if (kind == IndexUpdateKind.TYPE_ID && classIdx >= insertedIdx) {
68       classIdx++;
69     }
70     if (kind == IndexUpdateKind.TYPE_ID && superclassIdx >= insertedIdx) {
71       superclassIdx++;
72     }
73     if (kind == IndexUpdateKind.STRING_ID && sourceFileIdx >= insertedIdx) {
74       sourceFileIdx++;
75     }
76   }
77 }
78