/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE197_Numeric_Truncation_Error__int_PropertiesFile_to_short_16.java
Label Definition File: CWE197_Numeric_Truncation_Error__int.label.xml
Template File: sources-sink-16.tmpl.java
*/
/*
* @description
* CWE: 197 Numeric Truncation Error
* BadSource: PropertiesFile Read data from a .properties file (in property named data)
* GoodSource: A hardcoded non-zero, non-min, non-max, even number
* BadSink: to_short Convert data to a short
* Flow Variant: 16 Control flow: while(true)
*
* */




import java.util.Properties;

import java.io.FileInputStream;
import java.io.IOException;

import java.util.logging.Level;

public class CWE197_Numeric_Truncation_Error__int_PropertiesFile_to_short_16 extends AbstractTestCase
{
    /* uses badsource and badsink */
    public void bad() throws Throwable
    {
        int data;

        while (true)
        {
            data = Integer.MIN_VALUE; /* Initialize data */
            /* retrieve the property */
            {
                Properties properties = new Properties();
                FileInputStream streamFileInput = null;
                try
                {
                    streamFileInput = new FileInputStream("../common/config.properties");
                    properties.load(streamFileInput);
                    /* POTENTIAL FLAW: Read data from a .properties file */
                    String stringNumber = properties.getProperty("data");
                    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 object */
                    try
                    {
                        if (streamFileInput != null)
                        {
                            streamFileInput.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                    }
                }
            }
            break;
        }

        {
            /* POTENTIAL FLAW: Convert data to a short, possibly causing a truncation error */
            IO.writeLine((short)data);
        }

    }

    /* goodG2B() - use goodsource and badsink */
    private void goodG2B() throws Throwable
    {
        int data;

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

        {
            /* POTENTIAL FLAW: Convert data to a short, possibly causing a truncation error */
            IO.writeLine((short)data);
        }

    }

    public void good() throws Throwable
    {
        goodG2B();
    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }
}
