/*
* Copyright 2011 The Android Open Source Project
*
* 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 fuzion24.device.vulnerability.vulnerabilities.helper;
import android.content.Context;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.lang.reflect.Method;
/**
* Utilities for accessing /proc filesystem information.
*/
public class SystemUtils {
private SystemUtils() {
}
public static int ProcfindPidFor(String executable) throws IOException {
File f = new File("/proc");
for (File d : f.listFiles()) {
String cmdLineString = d.getAbsolutePath() + "/cmdline";
File cmdLine = new File(cmdLineString);
if (cmdLine.exists()) {
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(cmdLine));
String line = in.readLine();
if ((line != null) && line.startsWith(executable)) {
return Integer.decode(d.getName());
}
} finally {
if (in != null) {
in.close();
}
}
}
}
throw new RuntimeException("should never get here");
}
//https://stackoverflow.com/questions/2641111/where-is-android-os-systemproperties
/**
* Get the value for the given key.
* @return an empty string if the key isn't found
* @throws IllegalArgumentException if the key exceeds 32 characters
*/
public static String propertyGet(Context context, String key) throws IllegalArgumentException {
String ret= "";
try{
ClassLoader cl = context.getClassLoader();
@SuppressWarnings("rawtypes")
Class SystemProperties = cl.loadClass("android.os.SystemProperties");
//Parameters Types
@SuppressWarnings("rawtypes")
Class[] paramTypes= new Class[1];
paramTypes[0]= String.class;
Method get = SystemProperties.getMethod("get", paramTypes);
//Parameters
Object[] params= new Object[1];
params[0]= new String(key);
ret= (String) get.invoke(SystemProperties, params);
}catch( IllegalArgumentException iAE ){
throw iAE;
}catch( Exception e ){
ret= "";
//TODO
}
return ret;
}
}