public static VersionInfo getSuperuserVersionInfo(Context context) {
VersionInfo info = new VersionInfo();
PackageManager pm = context.getPackageManager();
try {
PackageInfo pInfo = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_META_DATA);
info.version = pInfo.versionName;
info.versionCode = pInfo.versionCode;
} catch (NameNotFoundException e) {
Log.e(TAG, "Superuser is not installed?", e);
}
return info;
}
public static VersionInfo getSuVersionInfo() {
VersionInfo info = new VersionInfo();
Process process = null;
String inLine = null;
try {
process = Runtime.getRuntime().exec("sh");
DataOutputStream os = new DataOutputStream(process.getOutputStream());
BufferedReader is =
new BufferedReader(
new InputStreamReader(new DataInputStream(process.getInputStream())), 64);
os.writeBytes("su -v\n");
// We have to hold up the thread to make sure that we're ready to read
// the stream, using increments of 5ms makes it return as quick as
// possible, and limiting to 1000ms makes sure that it doesn't hang for
// too long if there's a problem.
for (int i = 0; i < 400; i++) {
if (is.ready()) {
break;
}
try {
Thread.sleep(5);
} catch (InterruptedException e) {
Log.w(TAG, "Sleep timer got interrupted...");
}
}
if (is.ready()) {
inLine = is.readLine();
if (inLine != null) {
info.version = inLine;
}
} else {
// If 'su -v' isn't supported, neither is 'su -V'. return legacy info
os.writeBytes("exit\n");
info.version = "legacy";
info.versionCode = 0;
return info;
}
os.writeBytes("su -v\n");
// We have to hold up the thread to make sure that we're ready to read
// the stream, using increments of 5ms makes it return as quick as
// possible, and limiting to 1000ms makes sure that it doesn't hang for
// too long if there's a problem.
for (int i = 0; i < 400; i++) {
if (is.ready()) {
break;
}
try {
Thread.sleep(5);
} catch (InterruptedException e) {
Log.w(TAG, "Sleep timer got interrupted...");
}
}
if (is.ready()) {
inLine = is.readLine();
if (inLine != null && Integer.parseInt(inLine.substring(0, 1)) > 2) {
inLine = null;
os.writeBytes("su -V\n");
inLine = is.readLine();
if (inLine != null) {
info.versionCode = Integer.parseInt(inLine);
}
} else {
info.versionCode = 0;
}
} else {
os.writeBytes("exit\n");
}
} catch (IOException e) {
Log.e(TAG, "Problems reading current version.", e);
} finally {
if (process != null) {
process.destroy();
}
}
return info;
}