I am trying to run these shell commands via java but no success.Code executes perfectly but .so file do not exectue. while i use these commands in adb everything work perfeclty.
private void submit() {
System.out.println("doooooooooo");
try {
String[] commands = {"cd /data/data/com.dailydeals.usethisnow/lib",
"./libdeals.so" };
Process p = Runtime.getRuntime().exec("/system/bin/sh -");
DataOutputStream os = new DataOutputStream(p.getOutputStream());
for (String tmpCmd : commands) {
os.writeBytes(tmpCmd+"\n");
}
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("doneooooooooo");
}
Executing shell commands in Android Applications (Android Programming)
Related
We know Android OS will select some activities or services to kill if the system needs more resource. I want to run a test to see if my service will be the candidate to be killed. How can I create a situation to trigger the event?
method 1
command kill -9 pid
This is actually a shell command. We know that the bottom layer of Android is Linux. Therefore, all Linux terminal commands can be used on Android. Paste a piece of code to show how do you incorporate it into the code.
private void killProcess(String pid) {
Process sh = null;
DataOutputStream os = null;
try {
sh = Runtime.getRuntime().exec("su");
os = new DataOutputStream(sh.getOutputStream());
final String Command = "kill -9 " + pid + "\n";
os.writeBytes(Command);
os.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
sh.waitFor();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
The most important function of this method is to tell you how to execute Linux shell commands in an Android program.
method 2
Kill the background service without automatic startup:
am (Activity Manager) command
The am command is a command in the /system/bin/ directory of the Android system. You can not only start an application on the terminal, but also start a service, send broadcast, intent action, and force stop process. We're going to use a function that is to force the application to stop.
For the description and usage of the am command, see the Android official website at http://developer.android.com/tools/help/adb.html#am.
The following is an example of code: am force-stop <PACKAGE>
private void forceStopAPK(String pkgName){
Process sh = null;
DataOutputStream os = null;
try {
sh = Runtime.getRuntime().exec("su");
os = new DataOutputStream(sh.getOutputStream());
final String Command = "am force-stop "+pkgName+ "\n";
os.writeBytes(Command);
os.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
sh.waitFor();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
In the preceding code, we call the forceStopAPK method to pass the package name of an application. Then we can kill the corresponding Android application without starting it automatically.
I have a custom device android 4.3. Problem occurs with some commands, one of an example:
su -c 'pm enable com.android.systemui'
When I run this command over adb it works. However when I run the code programatically using this library it just does not work, no error is shown as well.
Interesting observations:
Shell.SU.available() : false
Shell.SU.isSELinuxEnforcing() : false
Ok so device is rooted. Any reason why you are trying to do that command using that library?
What I am trying to say is why can't you just run the shell command yourself?
runRootCommand method:
static boolean runRootCommand(String command) {
boolean status = true;
DataOutputStream os = null;
try {
Process process = Runtime.getRuntime().exec("su");
os = new DataOutputStream(process.getOutputStream());
os.writeBytes(command + "\n");
os.writeBytes("exit\n");
os.flush();
process.waitFor();
} catch (IOException | InterruptedException e) {
Log.e(TAG, e.toString());
status = false;
} finally {
try {
if (os != null)
os.close();
} catch (IOException e) {
Log.e(TAG, e.toString());
status = false;
}
}
return status;
}
And then call that method like this:
boolean success = runRootCommand("pm enable com.android.systemui");
if(success) {
// command was successful
} else {
// command was NOT successful
}
This will run the command as "su" (superuser).
Hope this helps.
I'm developing an application that execute multiple shell command in different time.
I'm using the following method:
public void RunAsRoot(String[] cmds){
Process p = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(p.getOutputStream());
for (String tmpCmd : cmds) {
os.writeBytes(tmpCmd+"\n");
}
os.writeBytes("exit\n");
os.flush();
}
This method works fine but it always open a new shell every time I need to call it, so that it display the annoying toast "Application has been granted for root permission".
I think this is becouse it always open and close a new shell with SU access. My question is: is there any way to leave a SU shell always open so that I can run my commands when needed without receive the SU toast?
So this might be a bit late, but in case you are still searching for a solution: Just declare
private Process p = Runtime.getRuntime().exec("su");
globally in your class. This should fit your needs.
You can actually spawn the process in onResume() and destroy() it again in onPause().
#Override
onResume() {
if(//check for root) {
try {
this.p = Runtime.getRuntime().exec("su");
}
catch(IOException e) {
// Exception handling goes here
}
}
//set up everything else
}
#Override
onPause() {
this.p.destroy();
}
BTW: I see a serious memory leak in the above method: You open a variety of SU processes but never destroy() them again. Depending on how often you call this method there will be more and more SU processes lying around in RAM until your app is closed.
So
public void runAsRoot(String[] cmds){
try {
Process p = Runtime.getRuntime().exec("su");
}
catch(IOException e) {
// Exception handling goes here
}
DataOutputStream os = new DataOutputStream(p.getOutputStream());
for (String tmpCmd : cmds) {
os.writeBytes(tmpCmd+"\n");
}
os.writeBytes("exit\n");
os.flush();
p.destroy();
}
would be good here. I'm also asking myself if you can compile your approach. Usually Runtime.getRuntime().exec(); has to be surrounded by try/catch.
Please help me to find out solution for this, I Know there are so many questions and duplicates about this same but here i describe whole things which i tried.
I have one android device where its installed 4.0 version of android.
I want to shutdown this device using my one demo application.
1) Demo application is signed by platform keys which are used in built in file system.
2) Device is already rooted as its development board and i have all permissions on this.
Application contains Following things
1) Application is system application
2) Application signed by platform keys which are used in built in file system.
For make automation easier, I did import the key/cert pair into my java keystore file, with the this keytool-importkeypair and use eclipse for signing.
Used command is mentioned below.
Commad : keytool-importkeypair -k ~/Desktop/myown.keystore -p android -pk8 platform.pk8 -cert platform.x509.pem -alias platform
I used following code for reboot but i never make success in this .I read So many questions and answers on stackoverflow but they all said you require
1) root access of device
2) signed apk with any one keys which are available on `build/target/product/security/`
3) Given Proper permission in AndroidManifest.xml file.
Am i right in alomg points?
Application code :
First Try
public static void shutdown2() {
Runtime runtime = Runtime.getRuntime();
Process proc = null;
OutputStreamWriter osw = null;
String command = "/system/bin/reboot -p";
try { // Run Script
proc = runtime.exec("/system/xbin/su");
osw = new OutputStreamWriter(proc.getOutputStream());
osw.write(command);
osw.flush();
osw.close();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (osw != null) {
try {
osw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
try {
if (proc != null)
proc.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
if (proc.exitValue() != 0) {
}
}
Second Try :
private void shutdown3() {
try {
String[] cmd = { "/system/bin/sh","su","reboot -p"};
Process proc = Runtime.getRuntime().exec(cmd);
proc.waitFor();
} catch (Exception ex) {
Log.i("TAG", "Could not reboot 3 ", ex);
}
}
3rd Try :
private void shutdown() {
try {
Process proc = Runtime.getRuntime().exec(
new String[] { "/system/bin/su", "-c",
"/system/bin/reboot -p" });
proc.waitFor();
} catch (Exception ex) {
Log.i("TAG", "Could not reboot 1 ", ex);
}
}
In 3rd method I also tried with "/system/bin/su"
The below code worked for me
Process process = Runtime.getRuntime()
.exec(new String[]{ "su", "-c", "busybox poweroff -f"});
process.waitFor();
A much better solution is to run:
su -c am start -a android.intent.action.ACTION_REQUEST_SHUTDOWN
You can use a Process for this.
I want to install .apk silently in background by BusyBox command. I`ve seen some similar questions like THIS, but I still cant get working my code properly...
I have:
My .apk I need to install on /sdcard/download/app.apk
Root
BusyBox installed
Code (not working):
String sss = Environment.getExternalStorageDirectory() + "/download/" + "app.apk";
Process install;
install = Runtime.getRuntime().exec("/system/xbin/busybox pm install " + sss);
int success = install.waitFor();
If I use "install" instead of "pm install" it copies file well.
P.S. Code above is executing in AsyncTask. No errors, but also nothing happens...
Please help!
Also I tried this, but I`m getting exit value 139 and no result:
Process process;
process = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(process.getOutputStream());
os.writeBytes("pm install /mnt/sdcard/app.apk\n");
os.flush();
os.writeBytes("exit\n");
os.flush();
int i = process.waitFor();
maybe this code will help you
Process p = null;
try
{
p = Runtime.getRuntime().exec("su");
DataOutputStream outs=new DataOutputStream(p.getOutputStream());
String cmd="pm install /mnt/sdcard/app.apk";
outs.writeBytes(cmd+"\n");
}
catch (IOException e)
{
e.printStackTrace();
}
After a lot of investigations on many android devices I realized that this code is correct and works!
There was just some problem with one device (Samsung Galaxy Tab 2 7.0 - 4.0.3 ICS). Maybe that is some strange feature of ICS. After updating firmware to 4.1.2 (Jelly Bean) problem has been resolved.
You can simply use adb install command to install/update APK silently. Sample code is below
public static void InstallAPK(String filename){
File file = new File(filename);
if(file.exists()){
try {
String command;
filename = StringUtil.insertEscape(filename);
command = "adb install -r " + filename;
Process proc = Runtime.getRuntime().exec(new String[] { "su", "-c", command });
proc.waitFor();
} catch (Exception e) {
e.printStackTrace();
}
}
}