/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE789_Uncontrolled_Mem_Alloc__listen_tcp_ArrayList_22b.java
Label Definition File: CWE789_Uncontrolled_Mem_Alloc.int.label.xml
Template File: sources-sink-22b.tmpl.java
*/
/*
 * @description
 * CWE: 789 Uncontrolled Memory Allocation
 * BadSource: listen_tcp Read data using a listening tcp connection
 * GoodSource: A hardcoded non-zero, non-min, non-max, even number
 * Sinks: ArrayList
 *    BadSink : Create an ArrayList using data as the initial size
 * Flow Variant: 22 Control flow: Flow controlled by value of a public static variable. Sink functions are in a separate file from sources.
 *
 * */






import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.net.Socket;
import java.net.ServerSocket;

import java.util.logging.Level;

public class CWE789_Uncontrolled_Mem_Alloc__listen_tcp_ArrayList_22b
{
    public int badSource() throws Throwable
    {
        int data;

        if (CWE789_Uncontrolled_Mem_Alloc__listen_tcp_ArrayList_22a.badPublicStatic)
        {
            data = Integer.MIN_VALUE; /* Initialize data */
            {
                ServerSocket listener = null;
                Socket socket = null;
                BufferedReader readerBuffered = null;
                InputStreamReader readerInputStream = null;
                /* Read data using a listening tcp connection */
                try
                {
                    listener = new ServerSocket(39543);
                    socket = listener.accept();
                    /* read input from socket */
                    readerInputStream = new InputStreamReader(socket.getInputStream(), "UTF-8");
                    readerBuffered = new BufferedReader(readerInputStream);
                    /* POTENTIAL FLAW: Read data using a listening tcp connection */
                    String stringNumber = readerBuffered.readLine();
                    if (stringNumber != null) // avoid NPD incidental warnings
                    {
                        try
                        {
                            data = Integer.parseInt(stringNumber.trim());
                        }
                        catch(NumberFormatException exceptNumberFormat)
                        {
                            IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                        }
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
                }
                finally
                {
                    /* Close stream reading objects */
                    try
                    {
                        if (readerBuffered != null)
                        {
                            readerBuffered.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing BufferedReader", exceptIO);
                    }

                    try
                    {
                        if (readerInputStream != null)
                        {
                            readerInputStream.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing InputStreamReader", exceptIO);
                    }

                    /* Close socket objects */
                    try
                    {
                        if (socket != null)
                        {
                            socket.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing Socket", exceptIO);
                    }

                    try
                    {
                        if (listener != null)
                        {
                            listener.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing ServerSocket", exceptIO);
                    }
                }
            }
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }
        return data;
    }

    /* goodG2B1() - use goodsource and badsink by setting the static variable to false instead of true */
    public int goodG2B1Source() throws Throwable
    {
        int data;

        if (CWE789_Uncontrolled_Mem_Alloc__listen_tcp_ArrayList_22a.goodG2B1PublicStatic)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }
        else
        {

            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;

        }

        return data;
    }

    /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if in the sink function */
    public int goodG2B2Source() throws Throwable
    {
        int data;

        if (CWE789_Uncontrolled_Mem_Alloc__listen_tcp_ArrayList_22a.goodG2B2PublicStatic)
        {
            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }

        return data;
    }
}
