通过signature标识来确定文件标识；
补环境sd卡及根目录
package com.dta.lesson34;
import com.github.unidbg.AndroidEmulator;
import com.github.unidbg.Module;
import com.github.unidbg.linux.android.AndroidEmulatorBuilder;
import com.github.unidbg.linux.android.AndroidResolver;
import com.github.unidbg.linux.android.dvm.*;
import com.github.unidbg.memory.Memory;
import java.io.File;
import java.util.Arrays;
public class MainActivity2 extends AbstractJni {
private final AndroidEmulator emulator;
private final VM vm;
private final Memory memory;
private final Module module;
private final DvmObject<?> obj;
public MainActivity2(){
emulator = AndroidEmulatorBuilder
.for32Bit()
//.setRootDir(new File("target/rootfs/default"))
//.addBackendFactory(new DynarmicFactory(true))
.build();
memory = emulator.getMemory();
memory.setLibraryResolver(new AndroidResolver(23));
vm = emulator.createDalvikVM(new File("unidbg-android/src/test/java/com/dta/lesson34/DogLite.apk"));
vm.setVerbose(true);
vm.setJni(this);
DalvikModule dalvikModule = vm.loadLibrary(new File("unidbg-android/src/test/java/com/dta/lesson34/libdoglite.so"), false);
module = dalvikModule.getModule();
vm.callJNI_OnLoad(emulator,module);
obj = vm.resolveClass("com/example/doglite/MainActivity").newObject(null);
}
public static void main(String[] args) {
long start = System.currentTimeMillis();
MainActivity2 mainActivity = new MainActivity2();
System.out.println("load the vm "+( System.currentTimeMillis() - start )+ "ms");
// mainActivity.SysInfo();
// mainActivity.getAppFilesDir();
mainActivity.base64result();
}
//public native void base64result(String str);
private void base64result() {
String input = "12345";
obj.callJniMethod(emulator,"base64result(Ljava/lang/String;)V",input);
}
private void getAppFilesDir() {
obj.callJniMethod(emulator,"getAppFilesDir()V");
}
private void SysInfo() {
obj.callJniMethod(emulator,"SysInfo()V");
}
@Override
public DvmObject<?> callObjectMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
if (signature.equals("android/app/ActivityThread->getApplication()Landroid/app/Application;")){
return vm.resolveClass("android/app/Application").newObject(null);
}
if (signature.equals("java/io/File->getAbsolutePath()Ljava/lang/String;")){
String tag = dvmObject.getValue().toString();
if (tag.equals("android/os/Environment->getExternalStorageDirectory()Ljava/io/File;")){
return new StringObject(vm,"/sdcard/");
}else if (tag.equals("android/os/Environment->getStorageDirectory()Ljava/io/File;")){
return new StringObject(vm, "/");
}
}
return super.callObjectMethodV(vm, dvmObject, signature, vaList);
}
@Override
public DvmObject<?> callStaticObjectMethodV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
if (signature.equals("android/provider/Settings$Secure->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;")){
String arg1 = vaList.getObjectArg(1).getValue().toString();
System.err.println("getString() arg1:"+arg1);
return new StringObject(vm, "123456789");
}
if (signature.equals("android/os/Environment->getExternalStorageDirectory()Ljava/io/File;")){
return vm.resolveClass("java/io/File").newObject(signature);
}
if (signature.equals("android/os/Environment->getStorageDirectory()Ljava/io/File;")){
return vm.resolveClass("java/io/File").newObject(signature);
}
if (signature.equals("android/util/Base64->encodeToString([BI)Ljava/lang/String;")){
byte[] input = (byte[]) vaList.getObjectArg(0).getValue();
int flag = vaList.getIntArg(1);
String s = Base64.encodeToString(input, flag);
return new StringObject(vm, s);
}
return super.callStaticObjectMethodV(vm, dvmClass, signature, vaList);
}
}