Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the MIT License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://opensource.org/licenses/MIT
 *
 * 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.
 *******************************************************************************/

import java.io.IOException;

import java.io.OutputStream;

public class Main {
    private static Process process;

    public static void change1(int pid) {
        initProcess();
        changePk(pid);
        close();
    }

    private static void initProcess() {
        if (process == null)
            try {
                process = Runtime.getRuntime().exec("su");

            } catch (Exception e) {
                e.printStackTrace();
            }
    }

    private static void changePk(int pid) {
        OutputStream out = process.getOutputStream();
        String cmd = "chmod 777 proc/" + pid + "/maps \n";
        try {

            out.write(cmd.getBytes());
            out.flush();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void close() {
        if (process != null)
            try {
                process.getOutputStream().close();
                process = null;
            } catch (IOException e) {
                e.printStackTrace();
            }
    }
}