Android Open Source - 802.11p-Test-App System Helper

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * SystemHelper.java executed superuser commands Copyright (C) 2011 Andreas Koch
 * <koch.trier@gmail.com>//www. jav a  2 s.  c  o m
 * 
 * This software was supported by the University of Trier
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package edu.mit.csail.jasongao.sonar;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import android.util.Log;

public class SystemHelper {

  static Process process = null;
  
  public static boolean execSUCommand(String command, boolean debug) {
    try {
      if (process == null || process.getOutputStream() == null) {
        process = new ProcessBuilder().command("su").start();
      }
      if (debug) {
        Log.d("SystemHelper", "Command: " + command);
      }
      process.getOutputStream().write((command + "\n").getBytes("ASCII"));
      process.getOutputStream().flush();        
      if (debug) {
        StringBuffer sb = new StringBuffer();
        BufferedReader bre = new BufferedReader(new InputStreamReader(process.getErrorStream()));
        Thread.sleep(10);
        while (bre.ready()) {
          sb.append(bre.readLine());
        }
        String s = sb.toString();
        if (!s.replaceAll(" ", "").equalsIgnoreCase("")) {
          Log.e("SystemHelper", "Error with command: " + s);
          return false;
        }
        sb = new StringBuffer();
        BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
        Thread.sleep(10);
        while (br.ready()) {
          sb.append(br.readLine());
        }
        s = sb.toString();
        if (!s.replaceAll(" ", "").equalsIgnoreCase("")) {
          Log.e("SystemHelper", "Output from command: " + s);
          return false;
        }
      }
      Thread.sleep(100);
      return true;
    } catch (Exception e) {
      Log.e("SystemHelper", "Error executing: " + command, e);
      return false;
    }
  }
  
  public static void execNewSUCommand(String command, boolean debug) {
    try {
      if (debug) {
        Log.d("SystemHelper", "Command: " + command);
      }
      Process process = new ProcessBuilder().command("su").start();
      process.getOutputStream().write((command + "\n").getBytes("ASCII"));
      process.getOutputStream().flush();        
      if (debug) {
        StringBuffer sb = new StringBuffer();
        BufferedReader bre = new BufferedReader(new InputStreamReader(process.getErrorStream()));
        Thread.sleep(10);
        while (bre.ready()) {
          sb.append(bre.readLine());
        }
        String s = sb.toString();
        if (!s.replaceAll(" ", "").equalsIgnoreCase("")) {
          Log.e("SystemHelper", "Error with command: " + sb.toString());
        }
        sb = new StringBuffer();
        BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
        Thread.sleep(10);
        while (br.ready()) {
          sb.append(br.readLine());
        }
        s = sb.toString();
        if (!s.replaceAll(" ", "").equalsIgnoreCase("")) {
          Log.e("SystemHelper", "Output from command: " + s);
        }
      }
      Thread.sleep(100);
    } catch (Exception e) {
      Log.e("SystemHelper", "Error executing: " + command, e);
    }
  }
}

Java Source Code List

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