unidbg-补环境访问文件及目录

可以采用重定向
2.采用虚拟目录

前两个文件不用补

package com.file;import com.GitHub.unidbg.AndroidEmulator;import com.github.unidbg.Emulator;import com.github.unidbg.file.FileResult;import com.github.unidbg.file.ioResolver;import com.github.unidbg.linux.android.AndroidEmulatorBuilder;import com.github.unidbg.linux.android.AndroidResolver;import com.github.unidbg.linux.android.dvm.DalvikModule;import com.github.unidbg.linux.android.dvm.DvmClass;import com.github.unidbg.linux.android.dvm.VM;import com.github.unidbg.linux.file.SimpleFileIO;import com.github.unidbg.memory.Memory;import java.io.File;import java.io.IOException;public class FileDemo{    private final AndroidEmulator emulator;    private final DvmClass MainActivity;    private final VM vm;    public FileDemo() {        emulator = AndroidEmulatorBuilder                .for32Bit()                //虚拟目录                .setRootDir(new File("unidbg-android/src/test/resources/FileDemo/VFS"))                .build();        Memory memory = emulator.getMemory();        memory.setLibraryResolver(new AndroidResolver(23));        vm = emulator.createDalvikVM(new File("unidbg-android/src/test/resources/FileDemo/app-debug.apk"));        // 打开日志        vm.setVerbose(true);        // 在SO加载前添加文件重定位器        emulator.getSyscallHandler().addIOResolver(new MyIOResolver());        DalvikModule dm = vm.loadLibrary("fileinunidbg", true);        MainActivity = vm.resolveClass("com/example/fileinunidbg/MainActivity");        dm.callJNI_OnLoad(emulator);    }    public void destroy() throws IOException {        emulator.close();    }    public void call(String pathName) {        String methodSign = "stringFromJNI(Ljava/lang/String;)Ljava/lang/String;";        MainActivity.callStaticJniMethodObject(emulator, methodSign, pathName);    }    public static void main(String[] args) throws IOException {        FileDemo fileDemo = new FileDemo();        String arg = "/data/user/0/com.example.fileinunidbg/files";        fileDemo.call(arg);        // 运行结束后关闭        fileDemo.destroy();    }}

package com.file;import com.github.unidbg.Emulator;import com.github.unidbg.file.FileResult;import com.github.unidbg.file.IOResolver;import com.github.unidbg.linux.file.ByteArrayFileIO;import com.github.unidbg.linux.file.DirectoryFileIO;import com.github.unidbg.linux.file.SimpleFileIO;import java.io.File;import java.NIO.charset.StandardCharsets;public class MyIOResolver implements IOResolver {    @Override    public FileResult resolve(Emulator emulator, String pathname, int oflags) {        System.out.println("lilac open file:"+pathname);        if(pathname.equals("/data/user/0/com.example.fileinunidbg/files/key.txt")){            return FileResult.success(new SimpleFileIO(oflags, new File("unidbg-android/src/test/resources/FileDemo/key.txt"), pathname));//            return FileResult.success(new ByteArrayFileIO(oflags, pathname, String.valueOf(System.currentTimeMillis()).getBytes(StandardCharsets.UTF_8)));//            return null;//            return FileResult.failed(13);        }//        // 返回对应的文件夹（目录文件）//        if(pathname.equals("/data/user/0/com.example.fileinunidbg/files/demo2")){//            return FileResult.success(new DirectoryFileIO(oflags, pathname,new File("unidbg-android/src/test/resources/FileDemo/demo2")))//            return FileResult.success(new DirectoryFileIO(oflags, pathname, new DirectoryFileIO.DirectoryEntry(true, String.valueOf(System.currentTimeMillis())), new DirectoryFileIO.DirectoryEntry(true, "1234")));//        }//        if(pathname.equals("/data/user/0/com.example.fileinunidbg/files/demo2/1.txt")){//            return FileResult.success(new SimpleFileIO(oflags, new File("unidbg-android/src/test/resources/FileDemo/demo2/1.txt"), pathname));//        }//        if(pathname.equals("/data/user/0/com.example.fileinunidbg/files/demo2/2.txt")){//            return FileResult.success(new SimpleFileIO(oflags, new File("unidbg-android/src/test/resources/FileDemo/demo2/2.txt"), pathname));//        }//        if(pathname.equals("/data/user/0/com.example.fileinunidbg/files/demo2/3.txt")){//            return FileResult.success(new SimpleFileIO(oflags, new File("unidbg-android/src/test/resources/FileDemo/demo2/3.txt"), pathname));//        }        return null;    }}

来源地址：https://blog.csdn.net/weixin_38927522/article/details/128085091