本人博客原文
首先把你的自己的su的放到Android应用程序工程的assets目录，为了和系统的su区分，我自己的su文件叫做sur。
另外我这里没有考虑x86架构的cpu的手机。
废话不多说，直接上代码吧！
Util.java文件
package cdut.robin.root.utils;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import ledroid.nac.NacShellCommand;
import android.content.Context;
import android.util.Log;
public class Util {
private static String getDeployMySuShellScript(String localSuPath) {
StringBuffer strBuffer = new StringBuffer();
strBuffer.append("mount -o remount,rw " + MountPoint.getDeviceName("/system") + " /system");
strBuffer.append("\n");
strBuffer.append("mount -o remount,rw /system /system");
strBuffer.append("\n");
strBuffer.append("cat ").append(localSuPath).append(">" + kSysSuPath);
strBuffer.append("\n");
strBuffer.append("chown 0:0 " + kSysSuPath);
strBuffer.append("\n");
strBuffer.append("chmod 6777 " + kSysSuPath);
strBuffer.append("\n");
strBuffer.append("mount -o remount,ro " + MountPoint.getDeviceName("/system") + " /system");
strBuffer.append("\n");
strBuffer.append("mount -o remount,ro /system /system");
strBuffer.append("\n");
return strBuffer.toString();
}
final static String kSysSuPath = "/system/xbin/sur";
private static boolean isMySuExists() {
return new File(kSysSuPath).exists();
}
private static boolean writeMySu(Context context) {
Process processShell = null;
DataOutputStream osShell = null;
String mySuTempPath = context.getFilesDir().getPath() + "/sur";
File file = new File(mySuTempPath);
if (file.exists()) {
file.delete();
}
InputStream open = null;
FileOutputStream out = null;
try {
open = context.getResources().getAssets().open("sur");
out = context.openFileOutput("sur", Context.MODE_WORLD_WRITEABLE);
byte buffer[] = new byte[4 * 1024];
int len = 0;
while ((len = open.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
out.flush();
} catch (IOException e) {
LogHelper.e("TAG", "errMessage" + e.getMessage());
} finally {
if (out != null) {
try {
out.close();
if (open != null) {
open.close();
}
} catch (Exception e) {
LogHelper.e("TAG", "errMessage" + e.getMessage());
}
}
}
Runtime runTime = Runtime.getRuntime();
try {
processShell = runTime.exec("su");
osShell = new DataOutputStream(processShell.getOutputStream());
String str = getDeployMySuShellScript(mySuTempPath);
osShell.writeBytes(str);
osShell.writeBytes("exit\n");
osShell.flush();
processShell.waitFor();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
if (processShell != null) {
try {
processShell.destroy();
} catch (Exception e) {
// e.printStackTrace();
}
processShell = null;
}
if (osShell != null) {
try {
osShell.close();
osShell = null;
} catch (IOException e1) {
// e1.printStackTrace();
}
}
}
return new File(kSysSuPath).exists();
}
public static boolean doSthBySu(Context context) {
if (!isMySuExists()) {
boolean res = writeMySu(context);
if (res) {
Log.i("robin", "deploy My Su success!");
}
else
{
Log.i("robin", "deploy My Su fail!");
}
} else{
Log.i("robin", "My su exsit!");
}
Process processShell = null;
DataOutputStream osShell = null;
//do something here by su
try {
Runtime runTime = Runtime.getRuntime();
processShell = runTime.exec("sur");
osShell = new DataOutputStream(processShell.getOutputStream());
String str = getBussinessShellScript();
osShell.writeBytes(str);
osShell.writeBytes("exit\n");
osShell.flush();
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (processShell != null) {
try {
processShell.destroy();
} catch (Exception e) {
e.printStackTrace();
}
processShell = null;
}
if (osShell != null) {
try {
osShell.close();
osShell = null;
} catch (IOException e1) {
// e1.printStackTrace();
}
}
}
return true;
}
public static String getBussinessShellScript() {
return "echo hello";
}
}
MountPoint.java文件
package cdut.robin.root.utils;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public final class MountPoint {
private static HashMap<String, String> MOUNT_POINT_CACH = new HashMap(10);
private static HashMap<String, List<String>> DEVICE_CACH = new HashMap(10);
public static boolean isMountPoint(String mountPoint) {
return getDeviceName(mountPoint) != null;
}
public static String getDeviceName(String mountPoint) {
if (mountPoint == null) {
return null;
}
String deviceName = null;
if (MOUNT_POINT_CACH.containsKey(mountPoint)) {
deviceName = (String) MOUNT_POINT_CACH.get(mountPoint);
}
return deviceName;
}
public static boolean hasMultiMountPoint(String deviceName) {
List list = getMountPoints(deviceName);
return (list != null) && (list.size() > 1);
}
public static List<String> getMountPoints(String deviceName) {
return (List) DEVICE_CACH.get(deviceName);
}
static {
BufferedReader mountPointReader = null;
try {
mountPointReader = new BufferedReader(new InputStreamReader(new FileInputStream(new File("/proc/mounts"))));
String buffer = null;
while ((buffer = mountPointReader.readLine()) != null) {
MOUNT_POINT_CACH.put(buffer.split(" ")[1], buffer.split(" ")[0]);
List list = (List) DEVICE_CACH.get(buffer.split(" ")[0]);
if (list == null) {
list = new ArrayList(1);
}
list.add(buffer.split(" ")[1]);
DEVICE_CACH.put(buffer.split(" ")[0], list);
}
} catch (IOException e) {
} finally {
try {
if (mountPointReader != null)
mountPointReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
结束！
Android中部署自己的su
时间： 2024-08-01 00:47:30