ReVanced/smali
1
0
Fork 0
mirror of https://github.com/revanced/smali.git synced 2025-05-02 23:54:38 +02:00
Code Issues Packages Projects Releases Wiki Activity

Add the ability to parse dependencies from odex files

Browse Source
This commit is contained in:
Ben Gruver 2013-04-09 23:41:27 -07:00
parent 7172de2aab
commit ac2686b3fc
2 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
dexlib2/src/main/java/org/jf/dexlib2/dexbacked/DexBackedOdexFile.java
View File

@ -33,15 +33,22 @@ package org.jf.dexlib2.dexbacked;
import com.google.common.io.ByteStreams; import com.google.common.io.ByteStreams;
import org.jf.dexlib2.dexbacked.raw.OdexHeaderItem; import org.jf.dexlib2.dexbacked.raw.OdexHeaderItem;
import org.jf.dexlib2.dexbacked.util.VariableSizeList;
import javax.annotation.Nonnull; import javax.annotation.Nonnull;
import java.io.EOFException; import java.io.EOFException;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.List;
public class DexBackedOdexFile extends DexBackedDexFile { public class DexBackedOdexFile extends DexBackedDexFile {
private static final int DEPENDENCY_COUNT_OFFSET = 12;
private static final int DEPENDENCY_START_OFFSET = 16;
private final byte[] odexBuf; private final byte[] odexBuf;
public DexBackedOdexFile(@Nonnull byte[] odexBuf, byte[] dexBuf) { public DexBackedOdexFile(@Nonnull byte[] odexBuf, byte[] dexBuf) {
super(dexBuf); super(dexBuf);
@ -52,6 +59,27 @@ public class DexBackedOdexFile extends DexBackedDexFile {
return true; return true;
} }
public List<String> getDependencies() {
final int dexOffset = OdexHeaderItem.getDexOffset(odexBuf);
final int dependencyOffset = OdexHeaderItem.getDependenciesOffset(odexBuf) - dexOffset;
BaseDexBuffer buf = new BaseDexBuffer(this.buf);
int dependencyCount = buf.readInt(dependencyOffset + DEPENDENCY_COUNT_OFFSET);
return new VariableSizeList<String>(this, dependencyOffset + DEPENDENCY_START_OFFSET, dependencyCount) {
@Override protected String readNextItem(@Nonnull DexReader reader, int index) {
int length = reader.readInt();
int offset = reader.getOffset();
reader.moveRelative(length + 20);
try {
return new String(DexBackedOdexFile.this.buf, offset, length-1, "US-ASCII");
} catch (UnsupportedEncodingException ex) {
throw new RuntimeException(ex);
}
}
};
}
public static DexBackedOdexFile fromInputStream(@Nonnull InputStream is) throws IOException { public static DexBackedOdexFile fromInputStream(@Nonnull InputStream is) throws IOException {
if (!is.markSupported()) { if (!is.markSupported()) {
throw new IllegalArgumentException("InputStream must support mark"); throw new IllegalArgumentException("InputStream must support mark");

5
dexlib2/src/main/java/org/jf/dexlib2/dexbacked/raw/OdexHeaderItem.java
View File

@ -82,4 +82,9 @@ public class OdexHeaderItem {
BaseDexBuffer bdb = new BaseDexBuffer(buf); BaseDexBuffer bdb = new BaseDexBuffer(buf);
return bdb.readSmallUint(DEX_OFFSET); return bdb.readSmallUint(DEX_OFFSET);
} }
public static int getDependenciesOffset(byte[] buf) {
BaseDexBuffer bdb = new BaseDexBuffer(buf);
return bdb.readSmallUint(DEPENDENCIES_OFFSET);
}
} }