better interaction with superuser
authorMichael Gernoth <michael@gernoth.net>
Sat, 21 May 2011 16:36:08 +0000 (18:36 +0200)
committerMichael Gernoth <michael@gernoth.net>
Sat, 21 May 2011 16:36:08 +0000 (18:36 +0200)
MS2Debounce/src/de/rmdir/ms2debounce/DebounceModuleHelper.java

index 39a29a8..80dc5ff 100644 (file)
@@ -5,6 +5,7 @@ import java.io.OutputStream;
 import java.io.File;
 import java.io.FileReader;
 import java.io.BufferedReader;
+import java.io.DataOutputStream;
 
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -13,6 +14,7 @@ public class DebounceModuleHelper
 {
        private Context ctx;
        public static final String PREFS_NAME = "DebounceCfg";
+       final int SUPERUSER_REQUEST = 4223;
 
        public DebounceModuleHelper(Context context) {
                ctx = context;
@@ -22,6 +24,17 @@ public class DebounceModuleHelper
                loadModule(getSavedDelay());
        }
 
+       protected void runAsRoot(String command) throws java.io.IOException,java.lang.InterruptedException {
+               Process rootcmd = Runtime.getRuntime().exec(new String[]{"su","-c","sh"});
+               DataOutputStream sh = new DataOutputStream(rootcmd.getOutputStream());
+               sh.writeBytes(command + "\n");
+               sh.writeBytes("exit\n");
+               sh.flush();
+               sh.close();
+
+               rootcmd.waitFor();
+       }
+
        public synchronized void loadModule(int delay) {
                File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
 
@@ -35,8 +48,7 @@ public class DebounceModuleHelper
                }
 
                try {
-                       Process insmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/insmod " + debounce_ko + " debounce_delay=" + delay});
-                       insmod.waitFor();
+                       runAsRoot("/system/bin/insmod " + debounce_ko + " debounce_delay=" + delay);
                } catch (Exception e) {
                        return;
                }
@@ -56,8 +68,7 @@ public class DebounceModuleHelper
 
        public synchronized void unloadModule() {
                try {
-                       Process rmmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/rmmod debounce"});
-                       rmmod.waitFor();
+                       runAsRoot("/system/bin/rmmod debounce");
                } catch (Exception e) {}
        }
 
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