Added RootCommands library from https://github.com/dschuermann/superuser-commands.git

app/app.iml

@@ -61,6 +61,7 @@
     </content>
     <orderEntry type="jdk" jdkName="Android API 19 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="RootCommands" exported="" />
   </component>
 </module>
 

app/build.gradle

@@ -1,24 +1,26 @@
 apply plugin: 'android'
 
 android {
-    compileSdkVersion 19
-    buildToolsVersion "19.1.0"
-
-    defaultConfig {
-        applicationId "com.nutomic.zertman"
-        minSdkVersion 19
-        targetSdkVersion 19
-        versionCode 1
-        versionName "0.1.0"
-    }
-    buildTypes {
-        release {
-            runProguard false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
+	compileSdkVersion 19
+	buildToolsVersion '19.1.0'
+	defaultConfig {
+		applicationId 'com.nutomic.zertman'
+		minSdkVersion 19
+		targetSdkVersion 19
+		versionCode 1
+		versionName '0.1.0'
+	}
+	buildTypes {
+		release {
+			runProguard false
+			proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+		}
+	}
+	productFlavors {
+	}
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+	compile fileTree(dir: 'libs', include: ['*.jar'])
+	compile project (':libraries:RootCommands')
 }

app/src/main/java/com/nutomic/zertman/MainActivity.java

@@ -5,6 +5,8 @@ import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
 
+import org.sufficientlysecure.rootcommands.command.SimpleCommand;
+
 
 public class MainActivity extends Activity {
 

libraries/RootCommands/.gitignore

@@ -0,0 +1,33 @@
+#Android specific
+bin
+gen
+obj
+libs/armeabi
+lint.xml
+local.properties
+release.properties
+ant.properties
+*.class
+*.apk
+
+#Gradle
+.gradle
+build
+gradle.properties
+gradlew
+gradlew.bat
+gradle
+
+#Maven
+target
+pom.xml.*
+
+#Eclipse
+.project
+.classpath
+.settings
+.metadata
+
+#IntelliJ IDEA
+.idea
+*.iml

libraries/RootCommands/build.gradle

@@ -0,0 +1,24 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.5.+'
+    }
+}
+
+apply plugin: 'android-library'
+
+dependencies {
+}
+
+android {
+    compileSdkVersion 17
+    buildToolsVersion "19.1.0"
+
+    defaultConfig {
+        minSdkVersion 7
+        targetSdkVersion 17
+    }
+}
+

libraries/RootCommands/src/main/AndroidManifest.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.sufficientlysecure.rootcommands"
+    android:versionCode="3"
+    android:versionName="1.2" >
+
+    <uses-sdk
+        android:minSdkVersion="7"
+        android:targetSdkVersion="17" />
+        
+    <application />
+
+</manifest>

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/Mount.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+public class Mount {
+    protected final File mDevice;
+    protected final File mMountPoint;
+    protected final String mType;
+    protected final Set<String> mFlags;
+
+    Mount(File device, File path, String type, String flagsStr) {
+        mDevice = device;
+        mMountPoint = path;
+        mType = type;
+        mFlags = new HashSet<String>(Arrays.asList(flagsStr.split(",")));
+    }
+
+    public File getDevice() {
+        return mDevice;
+    }
+
+    public File getMountPoint() {
+        return mMountPoint;
+    }
+
+    public String getType() {
+        return mType;
+    }
+
+    public Set<String> getFlags() {
+        return mFlags;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("%s on %s type %s %s", mDevice, mMountPoint, mType, mFlags);
+    }
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/Remounter.java

@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.LineNumberReader;
+import java.util.ArrayList;
+import java.util.Locale;
+
+import org.sufficientlysecure.rootcommands.command.SimpleCommand;
+import org.sufficientlysecure.rootcommands.util.Log;
+
+//no modifier, this means it is package-private. Only our internal classes can use this.
+class Remounter {
+
+    private Shell shell;
+
+    public Remounter(Shell shell) {
+        super();
+        this.shell = shell;
+    }
+
+    /**
+     * This will take a path, which can contain the file name as well, and attempt to remount the
+     * underlying partition.
+     * <p/>
+     * For example, passing in the following string:
+     * "/system/bin/some/directory/that/really/would/never/exist" will result in /system ultimately
+     * being remounted. However, keep in mind that the longer the path you supply, the more work
+     * this has to do, and the slower it will run.
+     * 
+     * @param file
+     *            file path
+     * @param mountType
+     *            mount type: pass in RO (Read only) or RW (Read Write)
+     * @return a <code>boolean</code> which indicates whether or not the partition has been
+     *         remounted as specified.
+     */
+    protected boolean remount(String file, String mountType) {
+
+        // if the path has a trailing slash get rid of it.
+        if (file.endsWith("/") && !file.equals("/")) {
+            file = file.substring(0, file.lastIndexOf("/"));
+        }
+        // Make sure that what we are trying to remount is in the mount list.
+        boolean foundMount = false;
+        while (!foundMount) {
+            try {
+                for (Mount mount : getMounts()) {
+                    Log.d(RootCommands.TAG, mount.getMountPoint().toString());
+
+                    if (file.equals(mount.getMountPoint().toString())) {
+                        foundMount = true;
+                        break;
+                    }
+                }
+            } catch (Exception e) {
+                Log.e(RootCommands.TAG, "Exception", e);
+                return false;
+            }
+            if (!foundMount) {
+                try {
+                    file = (new File(file).getParent()).toString();
+                } catch (Exception e) {
+                    Log.e(RootCommands.TAG, "Exception", e);
+                    return false;
+                }
+            }
+        }
+        Mount mountPoint = findMountPointRecursive(file);
+
+        Log.d(RootCommands.TAG, "Remounting " + mountPoint.getMountPoint().getAbsolutePath()
+                + " as " + mountType.toLowerCase(Locale.US));
+        final boolean isMountMode = mountPoint.getFlags().contains(mountType.toLowerCase(Locale.US));
+
+        if (!isMountMode) {
+            // grab an instance of the internal class
+            try {
+                SimpleCommand command = new SimpleCommand("busybox mount -o remount,"
+                        + mountType.toLowerCase(Locale.US) + " " + mountPoint.getDevice().getAbsolutePath()
+                        + " " + mountPoint.getMountPoint().getAbsolutePath(),
+                        "toolbox mount -o remount," + mountType.toLowerCase(Locale.US) + " "
+                                + mountPoint.getDevice().getAbsolutePath() + " "
+                                + mountPoint.getMountPoint().getAbsolutePath(), "mount -o remount,"
+                                + mountType.toLowerCase(Locale.US) + " "
+                                + mountPoint.getDevice().getAbsolutePath() + " "
+                                + mountPoint.getMountPoint().getAbsolutePath(),
+                        "/system/bin/toolbox mount -o remount," + mountType.toLowerCase(Locale.US) + " "
+                                + mountPoint.getDevice().getAbsolutePath() + " "
+                                + mountPoint.getMountPoint().getAbsolutePath());
+
+                // execute on shell
+                shell.add(command).waitForFinish();
+
+            } catch (Exception e) {
+            }
+
+            mountPoint = findMountPointRecursive(file);
+        }
+
+        if (mountPoint != null) {
+            Log.d(RootCommands.TAG, mountPoint.getFlags() + " AND " + mountType.toLowerCase(Locale.US));
+            if (mountPoint.getFlags().contains(mountType.toLowerCase(Locale.US))) {
+                Log.d(RootCommands.TAG, mountPoint.getFlags().toString());
+                return true;
+            } else {
+                Log.d(RootCommands.TAG, mountPoint.getFlags().toString());
+            }
+        } else {
+            Log.d(RootCommands.TAG, "mountPoint is null");
+        }
+        return false;
+    }
+
+    private Mount findMountPointRecursive(String file) {
+        try {
+            ArrayList<Mount> mounts = getMounts();
+            for (File path = new File(file); path != null;) {
+                for (Mount mount : mounts) {
+                    if (mount.getMountPoint().equals(path)) {
+                        return mount;
+                    }
+                }
+            }
+            return null;
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        } catch (Exception e) {
+            Log.e(RootCommands.TAG, "Exception", e);
+        }
+        return null;
+    }
+
+    /**
+     * This will return an ArrayList of the class Mount. The class mount contains the following
+     * property's: device mountPoint type flags
+     * <p/>
+     * These will provide you with any information you need to work with the mount points.
+     * 
+     * @return <code>ArrayList<Mount></code> an ArrayList of the class Mount.
+     * @throws Exception
+     *             if we cannot return the mount points.
+     */
+    protected static ArrayList<Mount> getMounts() throws Exception {
+
+        final String tempFile = "/data/local/RootToolsMounts";
+
+        // copy /proc/mounts to tempfile. Directly reading it does not work on 4.3
+        Shell shell = Shell.startRootShell();
+        Toolbox tb = new Toolbox(shell);
+        tb.copyFile("/proc/mounts", tempFile, false, false);
+        tb.setFilePermissions(tempFile, "777");
+        shell.close();
+
+        LineNumberReader lnr = null;
+        lnr = new LineNumberReader(new FileReader(tempFile));
+        String line;
+        ArrayList<Mount> mounts = new ArrayList<Mount>();
+        while ((line = lnr.readLine()) != null) {
+
+            Log.d(RootCommands.TAG, line);
+
+            String[] fields = line.split(" ");
+            mounts.add(new Mount(new File(fields[0]), // device
+                    new File(fields[1]), // mountPoint
+                    fields[2], // fstype
+                    fields[3] // flags
+            ));
+        }
+        lnr.close();
+
+        return mounts;
+    }
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/RootCommands.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import org.sufficientlysecure.rootcommands.util.Log;
+
+public class RootCommands {
+    public static boolean DEBUG = false;
+    public static int DEFAULT_TIMEOUT = 10000;
+
+    public static final String TAG = "RootCommands";
+
+    /**
+     * General method to check if user has su binary and accepts root access for this program!
+     * 
+     * @return true if everything worked
+     */
+    public static boolean rootAccessGiven() {
+        boolean rootAccess = false;
+
+        try {
+            Shell rootShell = Shell.startRootShell();
+
+            Toolbox tb = new Toolbox(rootShell);
+            if (tb.isRootAccessGiven()) {
+                rootAccess = true;
+            }
+
+            rootShell.close();
+        } catch (Exception e) {
+            Log.e(TAG, "Problem while checking for root access!", e);
+        }
+
+        return rootAccess;
+    }
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/Shell.java

@@ -0,0 +1,346 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks, Jeremy Lakeman (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import java.io.BufferedReader;
+import java.io.Closeable;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.sufficientlysecure.rootcommands.command.Command;
+import org.sufficientlysecure.rootcommands.util.Log;
+import org.sufficientlysecure.rootcommands.util.RootAccessDeniedException;
+import org.sufficientlysecure.rootcommands.util.Utils;
+
+public class Shell implements Closeable {
+    private final Process shellProcess;
+    private final BufferedReader stdOutErr;
+    private final DataOutputStream outputStream;
+    private final List<Command> commands = new ArrayList<Command>();
+    private boolean close = false;
+
+    private static final String LD_LIBRARY_PATH = System.getenv("LD_LIBRARY_PATH");
+    private static final String token = "F*D^W@#FGF";
+
+    /**
+     * Start root shell
+     * 
+     * @param customEnv
+     * @param baseDirectory
+     * @return
+     * @throws IOException
+     */
+    public static Shell startRootShell(ArrayList<String> customEnv, String baseDirectory)
+            throws IOException, RootAccessDeniedException {
+        Log.d(RootCommands.TAG, "Starting Root Shell!");
+
+        // On some versions of Android (ICS) LD_LIBRARY_PATH is unset when using su
+        // We need to pass LD_LIBRARY_PATH over su for some commands to work correctly.
+        if (customEnv == null) {
+            customEnv = new ArrayList<String>();
+        }
+        customEnv.add("LD_LIBRARY_PATH=" + LD_LIBRARY_PATH);
+
+        Shell shell = new Shell(Utils.getSuPath(), customEnv, baseDirectory);
+
+        return shell;
+    }
+
+    /**
+     * Start root shell without custom environment and base directory
+     * 
+     * @return
+     * @throws IOException
+     */
+    public static Shell startRootShell() throws IOException, RootAccessDeniedException {
+        return startRootShell(null, null);
+    }
+
+    /**
+     * Start default sh shell
+     * 
+     * @param customEnv
+     * @param baseDirectory
+     * @return
+     * @throws IOException
+     */
+    public static Shell startShell(ArrayList<String> customEnv, String baseDirectory)
+            throws IOException {
+        Log.d(RootCommands.TAG, "Starting Shell!");
+        Shell shell = new Shell("sh", customEnv, baseDirectory);
+        return shell;
+    }
+
+    /**
+     * Start default sh shell without custom environment and base directory
+     * 
+     * @return
+     * @throws IOException
+     */
+    public static Shell startShell() throws IOException {
+        return startShell(null, null);
+    }
+
+    /**
+     * Start custom shell defined by shellPath
+     * 
+     * @param shellPath
+     * @param customEnv
+     * @param baseDirectory
+     * @return
+     * @throws IOException
+     */
+    public static Shell startCustomShell(String shellPath, ArrayList<String> customEnv,
+            String baseDirectory) throws IOException {
+        Log.d(RootCommands.TAG, "Starting Custom Shell!");
+        Shell shell = new Shell(shellPath, customEnv, baseDirectory);
+
+        return shell;
+    }
+
+    /**
+     * Start custom shell without custom environment and base directory
+     * 
+     * @param shellPath
+     * @return
+     * @throws IOException
+     */
+    public static Shell startCustomShell(String shellPath) throws IOException {
+        return startCustomShell(shellPath, null, null);
+    }
+
+    private Shell(String shell, ArrayList<String> customEnv, String baseDirectory)
+            throws IOException, RootAccessDeniedException {
+        Log.d(RootCommands.TAG, "Starting shell: " + shell);
+
+        // start shell process!
+        shellProcess = Utils.runWithEnv(shell, customEnv, baseDirectory);
+
+        // StdErr is redirected to StdOut, defined in Command.getCommand()
+        stdOutErr = new BufferedReader(new InputStreamReader(shellProcess.getInputStream()));
+        outputStream = new DataOutputStream(shellProcess.getOutputStream());
+
+        outputStream.write("echo Started\n".getBytes());
+        outputStream.flush();
+
+        while (true) {
+            String line = stdOutErr.readLine();
+            if (line == null)
+                throw new RootAccessDeniedException(
+                        "stdout line is null! Access was denied or this executeable is not a shell!");
+            if ("".equals(line))
+                continue;
+            if ("Started".equals(line))
+                break;
+
+            destroyShellProcess();
+            throw new IOException("Unable to start shell, unexpected output \"" + line + "\"");
+        }
+
+        new Thread(inputRunnable, "Shell Input").start();
+        new Thread(outputRunnable, "Shell Output").start();
+    }
+
+    private Runnable inputRunnable = new Runnable() {
+        public void run() {
+            try {
+                writeCommands();
+            } catch (IOException e) {
+                Log.e(RootCommands.TAG, "IO Exception", e);
+            }
+        }
+    };
+
+    private Runnable outputRunnable = new Runnable() {
+        public void run() {
+            try {
+                readOutput();
+            } catch (IOException e) {
+                Log.e(RootCommands.TAG, "IOException", e);
+            } catch (InterruptedException e) {
+                Log.e(RootCommands.TAG, "InterruptedException", e);
+            }
+        }
+    };
+
+    /**
+     * Destroy shell process considering that the process could already be terminated
+     */
+    private void destroyShellProcess() {
+        try {
+            // Yes, this really is the way to check if the process is
+            // still running.
+            shellProcess.exitValue();
+        } catch (IllegalThreadStateException e) {
+            // Only call destroy() if the process is still running;
+            // Calling it for a terminated process will not crash, but
+            // (starting with at least ICS/4.0) spam the log with INFO
+            // messages ala "Failed to destroy process" and "kill
+            // failed: ESRCH (No such process)".
+            shellProcess.destroy();
+        }
+
+        Log.d(RootCommands.TAG, "Shell destroyed");
+    }
+
+    /**
+     * Writes queued commands one after another into the opened shell. After an execution a token is
+     * written to seperate command output on read
+     * 
+     * @throws IOException
+     */
+    private void writeCommands() throws IOException {
+        try {
+            int commandIndex = 0;
+            while (true) {
+                DataOutputStream out;
+                synchronized (commands) {
+                    while (!close && commandIndex >= commands.size()) {
+                        commands.wait();
+                    }
+                    out = this.outputStream;
+                }
+                if (commandIndex < commands.size()) {
+                    Command next = commands.get(commandIndex);
+                    next.writeCommand(out);
+                    String line = "\necho " + token + " " + commandIndex + " $?\n";
+                    out.write(line.getBytes());
+                    out.flush();
+                    commandIndex++;
+                } else if (close) {
+                    out.write("\nexit 0\n".getBytes());
+                    out.flush();
+                    out.close();
+                    Log.d(RootCommands.TAG, "Closing shell");
+                    return;
+                }
+            }
+        } catch (InterruptedException e) {
+            Log.e(RootCommands.TAG, "interrupted while writing command", e);
+        }
+    }
+
+    /**
+     * Reads output line by line, seperated by token written after every command
+     * 
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    private void readOutput() throws IOException, InterruptedException {
+        Command command = null;
+
+        // index of current command
+        int commandIndex = 0;
+        while (true) {
+            String lineStdOut = stdOutErr.readLine();
+
+            // terminate on EOF
+            if (lineStdOut == null)
+                break;
+
+            if (command == null) {
+
+                // break on close after last command
+                if (commandIndex >= commands.size()) {
+                    if (close)
+                        break;
+                    continue;
+                }
+
+                // get current command
+                command = commands.get(commandIndex);
+            }
+
+            int pos = lineStdOut.indexOf(token);
+            if (pos > 0) {
+                command.processOutput(lineStdOut.substring(0, pos));
+            }
+            if (pos >= 0) {
+                lineStdOut = lineStdOut.substring(pos);
+                String fields[] = lineStdOut.split(" ");
+                int id = Integer.parseInt(fields[1]);
+                if (id == commandIndex) {
+                    command.setExitCode(Integer.parseInt(fields[2]));
+
+                    // go to next command
+                    commandIndex++;
+                    command = null;
+                    continue;
+                }
+            }
+            command.processOutput(lineStdOut);
+        }
+        Log.d(RootCommands.TAG, "Read all output");
+        shellProcess.waitFor();
+        destroyShellProcess();
+
+        while (commandIndex < commands.size()) {
+            if (command == null) {
+                command = commands.get(commandIndex);
+            }
+            command.terminated("Unexpected Termination!");
+            commandIndex++;
+            command = null;
+        }
+    }
+
+    /**
+     * Add command to shell queue
+     * 
+     * @param command
+     * @return
+     * @throws IOException
+     */
+    public Command add(Command command) throws IOException {
+        if (close)
+            throw new IOException("Unable to add commands to a closed shell");
+        synchronized (commands) {
+            commands.add(command);
+            // set shell on the command object, to know where the command is running on
+            command.addedToShell(this, (commands.size() - 1));
+            commands.notifyAll();
+        }
+
+        return command;
+    }
+
+    /**
+     * Close shell
+     * 
+     * @throws IOException
+     */
+    public void close() throws IOException {
+        synchronized (commands) {
+            this.close = true;
+            commands.notifyAll();
+        }
+    }
+
+    /**
+     * Returns number of queued commands
+     * 
+     * @return
+     */
+    public int getCommandsSize() {
+        return commands.size();
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/SystemCommands.java

@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import android.annotation.TargetApi;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.location.LocationManager;
+import android.os.PowerManager;
+import android.provider.Settings;
+
+/**
+ * This methods work when the apk is installed as a system app (under /system/app)
+ */
+public class SystemCommands {
+    Context context;
+
+    public SystemCommands(Context context) {
+        super();
+        this.context = context;
+    }
+
+    /**
+     * Get GPS status
+     * 
+     * @return
+     */
+    public boolean getGPS() {
+        return ((LocationManager) context.getSystemService(Context.LOCATION_SERVICE))
+                .isProviderEnabled(LocationManager.GPS_PROVIDER);
+    }
+
+    /**
+     * Enable/Disable GPS
+     * 
+     * @param value
+     */
+    @TargetApi(8)
+    public void setGPS(boolean value) {
+        ContentResolver localContentResolver = context.getContentResolver();
+        Settings.Secure.setLocationProviderEnabled(localContentResolver,
+                LocationManager.GPS_PROVIDER, value);
+    }
+
+    /**
+     * TODO: Not ready yet
+     */
+    @TargetApi(8)
+    public void reboot() {
+        PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+        pm.reboot("recovery");
+        pm.reboot(null);
+
+        // not working:
+        // reboot(null);
+    }
+
+    /**
+     * Reboot the device immediately, passing 'reason' (may be null) to the underlying __reboot
+     * system call. Should not return.
+     * 
+     * Taken from com.android.server.PowerManagerService.reboot
+     */
+    // public void reboot(String reason) {
+    //
+    // // final String finalReason = reason;
+    // Runnable runnable = new Runnable() {
+    // public void run() {
+    // synchronized (this) {
+    // // ShutdownThread.reboot(mContext, finalReason, false);
+    // try {
+    // Class<?> clazz = Class.forName("com.android.internal.app.ShutdownThread");
+    //
+    // // if (mReboot) {
+    // Method method = clazz.getMethod("reboot", Context.class, String.class,
+    // Boolean.TYPE);
+    // method.invoke(null, context, null, false);
+    //
+    // // if (mReboot) {
+    // // Method method = clazz.getMethod("reboot", Context.class, String.class,
+    // // Boolean.TYPE);
+    // // method.invoke(null, mContext, mReason, mConfirm);
+    // // } else {
+    // // Method method = clazz.getMethod("shutdown", Context.class, Boolean.TYPE);
+    // // method.invoke(null, mContext, mConfirm);
+    // // }
+    // } catch (Exception e) {
+    // e.printStackTrace();
+    // }
+    // }
+    //
+    // }
+    // };
+    // // ShutdownThread must run on a looper capable of displaying the UI.
+    // mHandler.post(runnable);
+    //
+    // // PowerManager.reboot() is documented not to return so just wait for the inevitable.
+    // // synchronized (runnable) {
+    // // while (true) {
+    // // try {
+    // // runnable.wait();
+    // // } catch (InterruptedException e) {
+    // // }
+    // // }
+    // // }
+    // }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/Toolbox.java

@@ -0,0 +1,824 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.concurrent.TimeoutException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.sufficientlysecure.rootcommands.command.ExecutableCommand;
+import org.sufficientlysecure.rootcommands.command.Command;
+import org.sufficientlysecure.rootcommands.command.SimpleCommand;
+import org.sufficientlysecure.rootcommands.util.BrokenBusyboxException;
+import org.sufficientlysecure.rootcommands.util.Log;
+
+import android.os.StatFs;
+import android.os.SystemClock;
+
+/**
+ * All methods in this class are working with Androids toolbox. Toolbox is similar to busybox, but
+ * normally shipped on every Android OS. You can find toolbox commands on
+ * https://github.com/CyanogenMod/android_system_core/tree/ics/toolbox
+ * 
+ * This means that these commands are designed to work on every Android OS, with a _working_ toolbox
+ * binary on it. They don't require busybox!
+ * 
+ */
+public class Toolbox {
+    private Shell shell;
+
+    /**
+     * All methods in this class are working with Androids toolbox. Toolbox is similar to busybox,
+     * but normally shipped on every Android OS.
+     * 
+     * @param shell
+     *            where to execute commands on
+     */
+    public Toolbox(Shell shell) {
+        super();
+        this.shell = shell;
+    }
+
+    /**
+     * Checks if user accepted root access
+     * 
+     * (commands: id)
+     * 
+     * @return true if user has given root access
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public boolean isRootAccessGiven() throws BrokenBusyboxException, TimeoutException, IOException {
+        SimpleCommand idCommand = new SimpleCommand("id");
+        shell.add(idCommand).waitForFinish();
+
+        if (idCommand.getOutput().contains("uid=0")) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * This command class gets all pids to a given process name
+     */
+    private class PsCommand extends Command {
+        private String processName;
+        private ArrayList<String> pids;
+        private String psRegex;
+        private Pattern psPattern;
+
+        public PsCommand(String processName) {
+            super("ps");
+            this.processName = processName;
+            pids = new ArrayList<String>();
+
+            /**
+             * regex to get pid out of ps line, example:
+             * 
+             * <pre>
+             *  root    24736    1   12140  584   ffffffff 40010d14 S /data/data/org.adaway/files/blank_webserver
+             * ^\\S \\s ([0-9]+)                          .*                                      processName    $
+             * </pre>
+             */
+            psRegex = "^\\S+\\s+([0-9]+).*" + Pattern.quote(processName) + "$";
+            psPattern = Pattern.compile(psRegex);
+        }
+
+        public ArrayList<String> getPids() {
+            return pids;
+        }
+
+        public String getPidsString() {
+            StringBuilder sb = new StringBuilder();
+            for (String s : pids) {
+                sb.append(s);
+                sb.append(" ");
+            }
+
+            return sb.toString();
+        }
+
+        @Override
+        public void output(int id, String line) {
+            // general check if line contains processName
+            if (line.contains(processName)) {
+                Matcher psMatcher = psPattern.matcher(line);
+
+                // try to match line exactly
+                try {
+                    if (psMatcher.find()) {
+                        String pid = psMatcher.group(1);
+                        // add to pids list
+                        pids.add(pid);
+                        Log.d(RootCommands.TAG, "Found pid: " + pid);
+                    } else {
+                        Log.d(RootCommands.TAG, "Matching in ps command failed!");
+                    }
+                } catch (Exception e) {
+                    Log.e(RootCommands.TAG, "Error with regex!", e);
+                }
+            }
+        }
+
+        @Override
+        public void afterExecution(int id, int exitCode) {
+        }
+
+    }
+
+    /**
+     * This method can be used to kill a running process
+     * 
+     * (commands: ps, kill)
+     * 
+     * @param processName
+     *            name of process to kill
+     * @return <code>true</code> if process was found and killed successfully
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public boolean killAll(String processName) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        Log.d(RootCommands.TAG, "Killing process " + processName);
+
+        PsCommand psCommand = new PsCommand(processName);
+        shell.add(psCommand).waitForFinish();
+
+        // kill processes
+        if (!psCommand.getPids().isEmpty()) {
+            // example: kill -9 1234 1222 5343
+            SimpleCommand killCommand = new SimpleCommand("kill -9 "
+                    + psCommand.getPidsString());
+            shell.add(killCommand).waitForFinish();
+
+            if (killCommand.getExitCode() == 0) {
+                return true;
+            } else {
+                return false;
+            }
+        } else {
+            Log.d(RootCommands.TAG, "No pid found! Nothing was killed!");
+            return false;
+        }
+    }
+
+    /**
+     * Kill a running executable
+     * 
+     * See README for more information how to use your own executables!
+     * 
+     * @param executableName
+     * @return
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public boolean killAllExecutable(String executableName) throws BrokenBusyboxException,
+            TimeoutException, IOException {
+        return killAll(ExecutableCommand.EXECUTABLE_PREFIX + executableName + ExecutableCommand.EXECUTABLE_SUFFIX);
+    }
+
+    /**
+     * This method can be used to to check if a process is running
+     * 
+     * @param processName
+     *            name of process to check
+     * @return <code>true</code> if process was found
+     * @throws IOException
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     *             (Could not determine if the process is running)
+     */
+    public boolean isProcessRunning(String processName) throws BrokenBusyboxException,
+            TimeoutException, IOException {
+        PsCommand psCommand = new PsCommand(processName);
+        shell.add(psCommand).waitForFinish();
+
+        // if pids are available process is running!
+        if (!psCommand.getPids().isEmpty()) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Checks if binary is running
+     * 
+     * @param binaryName
+     * @return
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public boolean isBinaryRunning(String binaryName) throws BrokenBusyboxException,
+            TimeoutException, IOException {
+        return isProcessRunning(ExecutableCommand.EXECUTABLE_PREFIX + binaryName
+                + ExecutableCommand.EXECUTABLE_SUFFIX);
+    }
+
+    /**
+     * Ls command to get permissions or symlinks
+     */
+    private class LsCommand extends Command {
+        private String fileName;
+        private String permissionRegex;
+        private Pattern permissionPattern;
+        private String symlinkRegex;
+        private Pattern symlinkPattern;
+
+        private String symlink;
+        private String permissions;
+
+        public String getSymlink() {
+            return symlink;
+        }
+
+        public String getPermissions() {
+            return permissions;
+        }
+
+        public LsCommand(String file) {
+            super("ls -l " + file);
+
+            // get only filename:
+            this.fileName = (new File(file)).getName();
+            Log.d(RootCommands.TAG, "fileName: " + fileName);
+
+            /**
+             * regex to get pid out of ps line, example:
+             * 
+             * <pre>
+             * with busybox:
+             *     lrwxrwxrwx     1 root root            15 Aug 13 12:14 dev/stdin -> /proc/self/fd/0
+             *     
+             * with toolbox:
+             *     lrwxrwxrwx root root            15 Aug 13 12:14 stdin -> /proc/self/fd/0
+             * 
+             * Regex:
+             * ^.*?(\\S{10})                     .*                                                  $
+             * </pre>
+             */
+            permissionRegex = "^.*?(\\S{10}).*$";
+            permissionPattern = Pattern.compile(permissionRegex);
+
+            /**
+             * regex to get symlink
+             * 
+             * <pre>
+             *     ->           /proc/self/fd/0
+             * ^.*?\\-\\> \\s+  (.*)           $
+             * </pre>
+             */
+            symlinkRegex = "^.*?\\-\\>\\s+(.*)$";
+            symlinkPattern = Pattern.compile(symlinkRegex);
+        }
+
+        /**
+         * Converts permission string from ls command to numerical value. Example: -rwxrwxrwx gets
+         * to 777
+         * 
+         * @param permissions
+         * @return
+         */
+        private String convertPermissions(String permissions) {
+            int owner = getGroupPermission(permissions.substring(1, 4));
+            int group = getGroupPermission(permissions.substring(4, 7));
+            int world = getGroupPermission(permissions.substring(7, 10));
+
+            return "" + owner + group + world;
+        }
+
+        /**
+         * Calculates permission for one group
+         * 
+         * @param permission
+         * @return value of permission string
+         */
+        private int getGroupPermission(String permission) {
+            int value = 0;
+
+            if (permission.charAt(0) == 'r') {
+                value += 4;
+            }
+            if (permission.charAt(1) == 'w') {
+                value += 2;
+            }
+            if (permission.charAt(2) == 'x') {
+                value += 1;
+            }
+
+            return value;
+        }
+
+        @Override
+        public void output(int id, String line) {
+            // general check if line contains file
+            if (line.contains(fileName)) {
+
+                // try to match line exactly
+                try {
+                    Matcher permissionMatcher = permissionPattern.matcher(line);
+                    if (permissionMatcher.find()) {
+                        permissions = convertPermissions(permissionMatcher.group(1));
+
+                        Log.d(RootCommands.TAG, "Found permissions: " + permissions);
+                    } else {
+                        Log.d(RootCommands.TAG, "Permissions were not found in ls command!");
+                    }
+
+                    // try to parse for symlink
+                    Matcher symlinkMatcher = symlinkPattern.matcher(line);
+                    if (symlinkMatcher.find()) {
+                        /*
+                         * TODO: If symlink points to a file in the same directory the path is not
+                         * absolute!!!
+                         */
+                        symlink = symlinkMatcher.group(1);
+                        Log.d(RootCommands.TAG, "Symlink found: " + symlink);
+                    } else {
+                        Log.d(RootCommands.TAG, "No symlink found!");
+                    }
+                } catch (Exception e) {
+                    Log.e(RootCommands.TAG, "Error with regex!", e);
+                }
+            }
+        }
+
+        @Override
+        public void afterExecution(int id, int exitCode) {
+        }
+
+    }
+
+    /**
+     * @param file
+     *            String that represent the file, including the full path to the file and its name.
+     * @param followSymlinks
+     * @return File permissions as String, for example: 777, returns null on error
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     * 
+     */
+    public String getFilePermissions(String file) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        Log.d(RootCommands.TAG, "Checking permissions for " + file);
+
+        String permissions = null;
+
+        if (fileExists(file)) {
+            Log.d(RootCommands.TAG, file + " was found.");
+
+            LsCommand lsCommand = new LsCommand(file);
+            shell.add(lsCommand).waitForFinish();
+
+            permissions = lsCommand.getPermissions();
+        }
+
+        return permissions;
+    }
+
+    /**
+     * Sets permission of file
+     * 
+     * @param file
+     *            absolute path to file
+     * @param permissions
+     *            String like 777
+     * @return true if command worked
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public boolean setFilePermissions(String file, String permissions)
+            throws BrokenBusyboxException, TimeoutException, IOException {
+        Log.d(RootCommands.TAG, "Set permissions of " + file + " to " + permissions);
+
+        SimpleCommand chmodCommand = new SimpleCommand("chmod " + permissions + " " + file);
+        shell.add(chmodCommand).waitForFinish();
+
+        if (chmodCommand.getExitCode() == 0) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * This will return a String that represent the symlink for a specified file.
+     * 
+     * @param file
+     *            The path to the file to get the Symlink for. (must have absolute path)
+     * 
+     * @return A String that represent the symlink for a specified file or null if no symlink
+     *         exists.
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public String getSymlink(String file) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        Log.d(RootCommands.TAG, "Find symlink for " + file);
+
+        String symlink = null;
+
+        LsCommand lsCommand = new LsCommand(file);
+        shell.add(lsCommand).waitForFinish();
+
+        symlink = lsCommand.getSymlink();
+
+        return symlink;
+    }
+
+    /**
+     * Copys a file to a destination. Because cp is not available on all android devices, we use dd
+     * or cat.
+     * 
+     * @param source
+     *            example: /data/data/org.adaway/files/hosts
+     * @param destination
+     *            example: /system/etc/hosts
+     * @param remountAsRw
+     *            remounts the destination as read/write before writing to it
+     * @param preserveFileAttributes
+     *            tries to copy file attributes from source to destination, if only cat is available
+     *            only permissions are preserved
+     * @return true if it was successfully copied
+     * @throws BrokenBusyboxException
+     * @throws IOException
+     * @throws TimeoutException
+     */
+    public boolean copyFile(String source, String destination, boolean remountAsRw,
+            boolean preservePermissions) throws BrokenBusyboxException, IOException,
+            TimeoutException {
+
+        /*
+         * dd can only copy files, but we can not check if the source is a file without invoking
+         * shell commands, because from Java we probably have no read access, thus we only check if
+         * they are ending with trailing slashes
+         */
+        if (source.endsWith("/") || destination.endsWith("/")) {
+            throw new FileNotFoundException("dd can only copy files!");
+        }
+
+        // remount destination as read/write before copying to it
+        if (remountAsRw) {
+            if (!remount(destination, "RW")) {
+                Log.d(RootCommands.TAG,
+                        "Remounting failed! There is probably no need to remount this partition!");
+            }
+        }
+
+        // get permissions of source before overwriting
+        String permissions = null;
+        if (preservePermissions) {
+            permissions = getFilePermissions(source);
+        }
+
+        boolean commandSuccess = false;
+
+        SimpleCommand ddCommand = new SimpleCommand("dd if=" + source + " of="
+                + destination);
+        shell.add(ddCommand).waitForFinish();
+
+        if (ddCommand.getExitCode() == 0) {
+            commandSuccess = true;
+        } else {
+            // try cat if dd fails
+            SimpleCommand catCommand = new SimpleCommand("cat " + source + " > "
+                    + destination);
+            shell.add(catCommand).waitForFinish();
+
+            if (catCommand.getExitCode() == 0) {
+                commandSuccess = true;
+            }
+        }
+
+        // set back permissions from source to destination
+        if (preservePermissions) {
+            setFilePermissions(destination, permissions);
+        }
+
+        // remount destination back to read only
+        if (remountAsRw) {
+            if (!remount(destination, "RO")) {
+                Log.d(RootCommands.TAG,
+                        "Remounting failed! There is probably no need to remount this partition!");
+            }
+        }
+
+        return commandSuccess;
+    }
+
+    public static final int REBOOT_HOTREBOOT = 1;
+    public static final int REBOOT_REBOOT = 2;
+    public static final int REBOOT_SHUTDOWN = 3;
+    public static final int REBOOT_RECOVERY = 4;
+
+    /**
+     * Shutdown or reboot device. Possible actions are REBOOT_HOTREBOOT, REBOOT_REBOOT,
+     * REBOOT_SHUTDOWN, REBOOT_RECOVERY
+     * 
+     * @param action
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public void reboot(int action) throws BrokenBusyboxException, TimeoutException, IOException {
+        if (action == REBOOT_HOTREBOOT) {
+            killAll("system_server");
+            // or: killAll("zygote");
+        } else {
+            String command;
+            switch (action) {
+            case REBOOT_REBOOT:
+                command = "reboot";
+                break;
+            case REBOOT_SHUTDOWN:
+                command = "reboot -p";
+                break;
+            case REBOOT_RECOVERY:
+                command = "reboot recovery";
+                break;
+            default:
+                command = "reboot";
+                break;
+            }
+
+            SimpleCommand rebootCommand = new SimpleCommand(command);
+            shell.add(rebootCommand).waitForFinish();
+
+            if (rebootCommand.getExitCode() == -1) {
+                Log.e(RootCommands.TAG, "Reboot failed!");
+            }
+        }
+    }
+
+    /**
+     * This command checks if a file exists
+     */
+    private class FileExistsCommand extends Command {
+        private String file;
+        private boolean fileExists = false;
+
+        public FileExistsCommand(String file) {
+            super("ls " + file);
+            this.file = file;
+        }
+
+        public boolean isFileExists() {
+            return fileExists;
+        }
+
+        @Override
+        public void output(int id, String line) {
+            if (line.trim().equals(file)) {
+                fileExists = true;
+            }
+        }
+
+        @Override
+        public void afterExecution(int id, int exitCode) {
+        }
+
+    }
+
+    /**
+     * Use this to check whether or not a file exists on the filesystem.
+     * 
+     * @param file
+     *            String that represent the file, including the full path to the file and its name.
+     * 
+     * @return a boolean that will indicate whether or not the file exists.
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     * 
+     */
+    public boolean fileExists(String file) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        FileExistsCommand fileExistsCommand = new FileExistsCommand(file);
+        shell.add(fileExistsCommand).waitForFinish();
+
+        if (fileExistsCommand.isFileExists()) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public abstract class WithPermissions {
+        abstract void whileHavingPermissions();
+    }
+
+    /**
+     * Execute user defined Java code while having temporary permissions on a file
+     * 
+     * @param file
+     * @param withPermissions
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public void withPermission(String file, String permission, WithPermissions withPermissions)
+            throws BrokenBusyboxException, TimeoutException, IOException {
+        String oldPermissions = getFilePermissions(file);
+
+        // set permissions (If set to 666, then Dalvik VM can also write to that file!)
+        setFilePermissions(file, permission);
+
+        // execute user defined code
+        withPermissions.whileHavingPermissions();
+
+        // set back to old permissions
+        setFilePermissions(file, oldPermissions);
+    }
+
+    /**
+     * Execute user defined Java code while having temporary write permissions on a file using chmod
+     * 666
+     * 
+     * @param file
+     * @param withWritePermissions
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public void withWritePermissions(String file, WithPermissions withWritePermissions)
+            throws BrokenBusyboxException, TimeoutException, IOException {
+        withPermission(file, "666", withWritePermissions);
+    }
+
+    /**
+     * Sets system clock using /dev/alarm
+     * 
+     * @param millis
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public void setSystemClock(final long millis) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        withWritePermissions("/dev/alarm", new WithPermissions() {
+
+            @Override
+            void whileHavingPermissions() {
+                SystemClock.setCurrentTimeMillis(millis);
+            }
+        });
+    }
+
+    /**
+     * Adjust system clock by offset using /dev/alarm
+     * 
+     * @param offset
+     * @throws BrokenBusyboxException
+     * @throws TimeoutException
+     * @throws IOException
+     */
+    public void adjustSystemClock(final long offset) throws BrokenBusyboxException,
+            TimeoutException, IOException {
+        withWritePermissions("/dev/alarm", new WithPermissions() {
+
+            @Override
+            void whileHavingPermissions() {
+                SystemClock.setCurrentTimeMillis(System.currentTimeMillis() + offset);
+            }
+        });
+    }
+
+    /**
+     * This will take a path, which can contain the file name as well, and attempt to remount the
+     * underlying partition.
+     * 
+     * For example, passing in the following string:
+     * "/system/bin/some/directory/that/really/would/never/exist" will result in /system ultimately
+     * being remounted. However, keep in mind that the longer the path you supply, the more work
+     * this has to do, and the slower it will run.
+     * 
+     * @param file
+     *            file path
+     * @param mountType
+     *            mount type: pass in RO (Read only) or RW (Read Write)
+     * @return a <code>boolean</code> which indicates whether or not the partition has been
+     *         remounted as specified.
+     */
+    public boolean remount(String file, String mountType) {
+        // Recieved a request, get an instance of Remounter
+        Remounter remounter = new Remounter(shell);
+        // send the request
+        return (remounter.remount(file, mountType));
+    }
+
+    /**
+     * This will tell you how the specified mount is mounted. rw, ro, etc...
+     * 
+     * @param The
+     *            mount you want to check
+     * 
+     * @return <code>String</code> What the mount is mounted as.
+     * @throws Exception
+     *             if we cannot determine how the mount is mounted.
+     */
+    public String getMountedAs(String path) throws Exception {
+        ArrayList<Mount> mounts = Remounter.getMounts();
+        if (mounts != null) {
+            for (Mount mount : mounts) {
+                if (path.contains(mount.getMountPoint().getAbsolutePath())) {
+                    Log.d(RootCommands.TAG, (String) mount.getFlags().toArray()[0]);
+                    return (String) mount.getFlags().toArray()[0];
+                }
+            }
+
+            throw new Exception();
+        } else {
+            throw new Exception();
+        }
+    }
+
+    /**
+     * Check if there is enough space on partition where target is located
+     * 
+     * @param size
+     *            size of file to put on partition
+     * @param target
+     *            path where to put the file
+     * 
+     * @return true if it will fit on partition of target, false if it will not fit.
+     */
+    public boolean hasEnoughSpaceOnPartition(String target, long size) {
+        try {
+            // new File(target).getFreeSpace() (API 9) is not working on data partition
+
+            // get directory without file
+            String directory = new File(target).getParent().toString();
+
+            StatFs stat = new StatFs(directory);
+            long blockSize = stat.getBlockSize();
+            long availableBlocks = stat.getAvailableBlocks();
+            long availableSpace = availableBlocks * blockSize;
+
+            Log.i(RootCommands.TAG, "Checking for enough space: Target: " + target
+                    + ", directory: " + directory + " size: " + size + ", availableSpace: "
+                    + availableSpace);
+
+            if (size < availableSpace) {
+                return true;
+            } else {
+                Log.e(RootCommands.TAG, "Not enough space on partition!");
+                return false;
+            }
+        } catch (Exception e) {
+            // if new StatFs(directory) fails catch IllegalArgumentException and just return true as
+            // workaround
+            Log.e(RootCommands.TAG, "Problem while getting available space on partition!", e);
+            return true;
+        }
+    }
+
+    /**
+     * TODO: Not tested!
+     * 
+     * @param toggle
+     * @throws IOException
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public void toggleAdbDaemon(boolean toggle) throws BrokenBusyboxException, TimeoutException,
+            IOException {
+        SimpleCommand disableAdb = new SimpleCommand("setprop persist.service.adb.enable 0",
+                "stop adbd");
+        SimpleCommand enableAdb = new SimpleCommand("setprop persist.service.adb.enable 1",
+                "stop adbd", "sleep 1", "start adbd");
+
+        if (toggle) {
+            shell.add(enableAdb).waitForFinish();
+        } else {
+            shell.add(disableAdb).waitForFinish();
+        }
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/command/Command.java

@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks, Jeremy Lakeman (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.command;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.concurrent.TimeoutException;
+
+import org.sufficientlysecure.rootcommands.RootCommands;
+import org.sufficientlysecure.rootcommands.Shell;
+import org.sufficientlysecure.rootcommands.util.BrokenBusyboxException;
+import org.sufficientlysecure.rootcommands.util.Log;
+
+public abstract class Command {
+    final String command[];
+    boolean finished = false;
+    boolean brokenBusyboxDetected = false;
+    int exitCode;
+    int id;
+    int timeout = RootCommands.DEFAULT_TIMEOUT;
+    Shell shell = null;
+
+    public Command(String... command) {
+        this.command = command;
+    }
+
+    public Command(int timeout, String... command) {
+        this.command = command;
+        this.timeout = timeout;
+    }
+
+    /**
+     * This is called from Shell after adding it
+     * 
+     * @param shell
+     * @param id
+     */
+    public void addedToShell(Shell shell, int id) {
+        this.shell = shell;
+        this.id = id;
+    }
+
+    /**
+     * Gets command string executed on the shell
+     * 
+     * @return
+     */
+    public String getCommand() {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < command.length; i++) {
+            // redirect stderr to stdout
+            sb.append(command[i] + " 2>&1");
+            sb.append('\n');
+        }
+        Log.d(RootCommands.TAG, "Sending command(s): " + sb.toString());
+        return sb.toString();
+    }
+
+    public void writeCommand(OutputStream out) throws IOException {
+        out.write(getCommand().getBytes());
+    }
+
+    public void processOutput(String line) {
+        Log.d(RootCommands.TAG, "ID: " + id + ", Output: " + line);
+
+        /*
+         * Try to detect broken toolbox/busybox binaries (see
+         * https://code.google.com/p/busybox-android/issues/detail?id=1)
+         * 
+         * It is giving "Value too large for defined data type" on certain file operations (e.g. ls
+         * and chown) in certain directories (e.g. /data/data)
+         */
+        if (line.contains("Value too large for defined data type")) {
+            Log.e(RootCommands.TAG, "Busybox is broken with high probability due to line: " + line);
+            brokenBusyboxDetected = true;
+        }
+
+        // now execute specific output parsing
+        output(id, line);
+    }
+
+    public abstract void output(int id, String line);
+
+    public void processAfterExecution(int exitCode) {
+        Log.d(RootCommands.TAG, "ID: " + id + ", ExitCode: " + exitCode);
+
+        afterExecution(id, exitCode);
+    }
+
+    public abstract void afterExecution(int id, int exitCode);
+
+    public void commandFinished(int id) {
+        Log.d(RootCommands.TAG, "Command " + id + " finished.");
+    }
+
+    public void setExitCode(int code) {
+        synchronized (this) {
+            exitCode = code;
+            finished = true;
+            commandFinished(id);
+            this.notifyAll();
+        }
+    }
+
+    /**
+     * Close the shell
+     * 
+     * @param reason
+     */
+    public void terminate(String reason) {
+        try {
+            shell.close();
+            Log.d(RootCommands.TAG, "Terminating the shell.");
+            terminated(reason);
+        } catch (IOException e) {
+        }
+    }
+
+    public void terminated(String reason) {
+        setExitCode(-1);
+        Log.d(RootCommands.TAG, "Command " + id + " did not finish, because of " + reason);
+    }
+
+    /**
+     * Waits for this command to finish and forwards exitCode into afterExecution method
+     * 
+     * @param timeout
+     * @throws TimeoutException
+     * @throws BrokenBusyboxException
+     */
+    public void waitForFinish() throws TimeoutException, BrokenBusyboxException {
+        synchronized (this) {
+            while (!finished) {
+                try {
+                    this.wait(timeout);
+                } catch (InterruptedException e) {
+                    Log.e(RootCommands.TAG, "InterruptedException in waitForFinish()", e);
+                }
+
+                if (!finished) {
+                    finished = true;
+                    terminate("Timeout");
+                    throw new TimeoutException("Timeout has occurred.");
+                }
+            }
+
+            if (brokenBusyboxDetected) {
+                throw new BrokenBusyboxException();
+            }
+
+            processAfterExecution(exitCode);
+        }
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/command/ExecutableCommand.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.command;
+
+import java.io.File;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Build;
+
+public abstract class ExecutableCommand extends Command {
+    public static final String EXECUTABLE_PREFIX = "lib";
+    public static final String EXECUTABLE_SUFFIX = "_exec.so";
+
+    /**
+     * This class provides a way to use your own binaries!
+     * 
+     * Include your own executables, renamed from * to lib*_exec.so, in your libs folder under the
+     * architecture directories. Now they will be deployed by Android the same way libraries are
+     * deployed!
+     * 
+     * See README for more information how to use your own executables!
+     *
+     * @param context
+     * @param executableName
+     * @param parameters
+     */
+    public ExecutableCommand(Context context, String executableName, String parameters) {
+        super(getLibDirectory(context) + File.separator + EXECUTABLE_PREFIX + executableName
+                + EXECUTABLE_SUFFIX + " " + parameters);
+    }
+
+    /**
+     * Get full path to lib directory of app
+     * 
+     * @return dir as String
+     */
+    @SuppressLint("NewApi")
+    private static String getLibDirectory(Context context) {
+        if (Build.VERSION.SDK_INT >= 9) {
+            return context.getApplicationInfo().nativeLibraryDir;
+        } else {
+            return context.getApplicationInfo().dataDir + File.separator + "lib";
+        }
+    }
+
+    public abstract void output(int id, String line);
+
+    public abstract void afterExecution(int id, int exitCode);
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/command/SimpleCommand.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.command;
+
+public class SimpleCommand extends Command {
+    private StringBuilder sb = new StringBuilder();
+
+    public SimpleCommand(String... command) {
+        super(command);
+    }
+
+    @Override
+    public void output(int id, String line) {
+        sb.append(line).append('\n');
+    }
+
+    @Override
+    public void afterExecution(int id, int exitCode) {
+    }
+
+    public String getOutput() {
+        return sb.toString();
+    }
+
+    public int getExitCode() {
+        return exitCode;
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/command/SimpleExecutableCommand.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.command;
+
+import android.content.Context;
+
+public class SimpleExecutableCommand extends ExecutableCommand {
+    private StringBuilder sb = new StringBuilder();
+
+    public SimpleExecutableCommand(Context context, String executableName, String parameters) {
+        super(context, executableName, parameters);
+    }
+
+    @Override
+    public void output(int id, String line) {
+        sb.append(line).append('\n');
+    }
+
+    @Override
+    public void afterExecution(int id, int exitCode) {
+    }
+
+    public String getOutput() {
+        return sb.toString();
+    }
+
+    public int getExitCode() {
+        return exitCode;
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/util/BrokenBusyboxException.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.util;
+
+import java.io.IOException;
+
+public class BrokenBusyboxException extends IOException {
+    private static final long serialVersionUID = 8337358201589488409L;
+
+    public BrokenBusyboxException() {
+        super();
+    }
+
+    public BrokenBusyboxException(String detailMessage) {
+        super(detailMessage);
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/util/Log.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.util;
+
+import org.sufficientlysecure.rootcommands.RootCommands;
+
+/**
+ * Wraps Android Logging to enable or disable debug output using Constants
+ * 
+ */
+public final class Log {
+
+    public static void v(String tag, String msg) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.v(tag, msg);
+        }
+    }
+
+    public static void v(String tag, String msg, Throwable tr) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.v(tag, msg, tr);
+        }
+    }
+
+    public static void d(String tag, String msg) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.d(tag, msg);
+        }
+    }
+
+    public static void d(String tag, String msg, Throwable tr) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.d(tag, msg, tr);
+        }
+    }
+
+    public static void i(String tag, String msg) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.i(tag, msg);
+        }
+    }
+
+    public static void i(String tag, String msg, Throwable tr) {
+        if (RootCommands.DEBUG) {
+            android.util.Log.i(tag, msg, tr);
+        }
+    }
+
+    public static void w(String tag, String msg) {
+        android.util.Log.w(tag, msg);
+    }
+
+    public static void w(String tag, String msg, Throwable tr) {
+        android.util.Log.w(tag, msg, tr);
+    }
+
+    public static void w(String tag, Throwable tr) {
+        android.util.Log.w(tag, tr);
+    }
+
+    public static void e(String tag, String msg) {
+        android.util.Log.e(tag, msg);
+    }
+
+    public static void e(String tag, String msg, Throwable tr) {
+        android.util.Log.e(tag, msg, tr);
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/util/RootAccessDeniedException.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.util;
+
+import java.io.IOException;
+
+public class RootAccessDeniedException extends IOException {
+    private static final long serialVersionUID = 9088998884166225540L;
+
+    public RootAccessDeniedException() {
+        super();
+    }
+
+    public RootAccessDeniedException(String detailMessage) {
+        super(detailMessage);
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/util/UnsupportedArchitectureException.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.util;
+
+public class UnsupportedArchitectureException extends Exception {
+    private static final long serialVersionUID = 7826528799780001655L;
+
+    public UnsupportedArchitectureException() {
+        super();
+    }
+
+    public UnsupportedArchitectureException(String detailMessage) {
+        super(detailMessage);
+    }
+
+}

libraries/RootCommands/src/main/java/org/sufficientlysecure/rootcommands/util/Utils.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (c) 2012 Michael Elsdörfer (Android Autostarts)
+ * Copyright (c) 2012 Stephen Erickson, Chris Ravenscroft, Adam Shanks (RootTools)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.rootcommands.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Map;
+
+import org.sufficientlysecure.rootcommands.RootCommands;
+
+public class Utils {
+    /*
+     * The emulator and ADP1 device both have a su binary in /system/xbin/su, but it doesn't allow
+     * apps to use it (su app_29 $ su su: uid 10029 not allowed to su).
+     * 
+     * Cyanogen used to have su in /system/bin/su, in newer versions it's a symlink to
+     * /system/xbin/su.
+     * 
+     * The Archos tablet has it in /data/bin/su, since they don't have write access to /system yet.
+     */
+    static final String[] BinaryPlaces = { "/data/bin/", "/system/bin/", "/system/xbin/", "/sbin/",
+            "/data/local/xbin/", "/data/local/bin/", "/system/sd/xbin/", "/system/bin/failsafe/",
+            "/data/local/" };
+
+    /**
+     * Determine the path of the su executable.
+     * 
+     * Code from https://github.com/miracle2k/android-autostarts, use under Apache License was
+     * agreed by Michael Elsdörfer
+     */
+    public static String getSuPath() {
+        for (String p : BinaryPlaces) {
+            File su = new File(p + "su");
+            if (su.exists()) {
+                Log.d(RootCommands.TAG, "su found at: " + p);
+                return su.getAbsolutePath();
+            } else {
+                Log.v(RootCommands.TAG, "No su in: " + p);
+            }
+        }
+        Log.d(RootCommands.TAG, "No su found in a well-known location, " + "will just use \"su\".");
+        return "su";
+    }
+
+    /**
+     * This code is adapted from java.lang.ProcessBuilder.start().
+     * 
+     * The problem is that Android doesn't allow us to modify the map returned by
+     * ProcessBuilder.environment(), even though the docstring indicates that it should. This is
+     * because it simply returns the SystemEnvironment object that System.getenv() gives us. The
+     * relevant portion in the source code is marked as "// android changed", so presumably it's not
+     * the case in the original version of the Apache Harmony project.
+     * 
+     * Note that simply passing the environment variables we want to Process.exec won't be good
+     * enough, since that would override the environment we inherited completely.
+     * 
+     * We needed to be able to set a CLASSPATH environment variable for our new process in order to
+     * use the "app_process" command directly. Note: "app_process" takes arguments passed on to the
+     * Dalvik VM as well; this might be an alternative way to set the class path.
+     * 
+     * Code from https://github.com/miracle2k/android-autostarts, use under Apache License was
+     * agreed by Michael Elsdörfer
+     */
+    public static Process runWithEnv(String command, ArrayList<String> customAddedEnv,
+            String baseDirectory) throws IOException {
+
+        Map<String, String> environment = System.getenv();
+        String[] envArray = new String[environment.size()
+                + (customAddedEnv != null ? customAddedEnv.size() : 0)];
+        int i = 0;
+        for (Map.Entry<String, String> entry : environment.entrySet()) {
+            envArray[i++] = entry.getKey() + "=" + entry.getValue();
+        }
+        if (customAddedEnv != null) {
+            for (String entry : customAddedEnv) {
+                envArray[i++] = entry;
+            }
+        }
+
+        Process process;
+        if (baseDirectory == null) {
+            process = Runtime.getRuntime().exec(command, envArray, null);
+        } else {
+            process = Runtime.getRuntime().exec(command, envArray, new File(baseDirectory));
+        }
+        return process;
+    }
+}

settings.gradle

@@ -1 +1 @@
-include ':app'
+include ':app', ':libraries:RootCommands'