i am trying to execute the following method:
public void runAsRoot(String[] cmds) throws Exception {
Process p = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(p.getOutputStream());
InputStream is = p.getInputStream();
for (String tmpCmd : cmds) {
os.writeBytes(tmpCmd+"\n");
int readed = 0;
byte[] buff = new byte[4096];
// if cmd requires an output
// due to the blocking behaviour of read(...)
boolean cmdRequiresAnOutput = true;
if (cmdRequiresAnOutput) {
while( is.available() <= 0) {
try { Thread.sleep(200); } catch(Exception ex) {}
}
while( is.available() > 0) {
readed = is.read(buff);
if ( readed <= 0 ) break;
String seg = new String(buff,0,readed);
Log.i("#>", seg);
}
}
}
os.writeBytes("exit\n");
os.flush();
}
i invoked this method using the following input:
String[] cmds = {"/system/bin/sendevent /dev/input/event0 1 107 0 \n", "sleep 1", "/system/bin/sendevent /dev/input/event0 1 107 1 \n"};
try {
runAsRoot(cmds);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
but in logcat i receiving following errors:
07-06 15:19:27.007: E/su(6547): sudb - Opening database
07-06 15:19:27.007: E/(6547): Couldn't open database: unable to open database file
07-06 15:19:27.017: E/su(6547): sudb - Could not open database, prompt user
07-06 15:19:47.082: E/su(6547): select failed with 2: No such file or directory
07-06 15:19:47.082: W/su(6547): request rejected (10060->0 /system/bin/sh)
Any idea whats the issue?
It looks like there's an issue with the su binary, not with your app. Check if you can succesfully run a rooted shell from 'adb shell'. If 'adb shell' gives you a rooted shell from start, run 'su 1000' to lose root privileges and then run 'su' to try getting into a rooted shell again. If that fails, su isn't working.
Oh and on a related note: Be sure to run su in another Thread, maybe via a Handler or AsyncTask, so it won't block your UI thread.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With