/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE606_Unchecked_Loop_Condition__Property_16.java
Label Definition File: CWE606_Unchecked_Loop_Condition.label.xml
Template File: sources-sinks-16.tmpl.java
*/
/*
* @description
* CWE: 606 Unchecked Input for Loop Condition
* BadSource: Property Read data from a system property
* GoodSource: hardcoded int in string form
* Sinks:
*    GoodSink: validate loop variable
*    BadSink : loop variable not validated
* Flow Variant: 16 Control flow: while(true)
*
* */







public class CWE606_Unchecked_Loop_Condition__Property_16 extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        String data;

        while (true)
        {
            /* get system property user.home */
            /* POTENTIAL FLAW: Read data from a system property */
            data = System.getProperty("user.home");
            break;
        }

        while (true)
        {
            int numberOfLoops;
            try
            {
                numberOfLoops = Integer.parseInt(data);
            }
            catch (NumberFormatException exceptNumberFormat)
            {
                IO.writeLine("Invalid response. Numeric input expected. Assuming 1.");
                numberOfLoops = 1;
            }
            for (int i=0; i < numberOfLoops; i++)
            {
                /* POTENTIAL FLAW: user supplied input used for loop counter test */
                IO.writeLine("hello world");
            }
            break;
        }
    }

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

        while (true)
        {
            /* FIX: Use a hardcoded int as a string */
            data = "5";
            break;
        }

        while (true)
        {
            int numberOfLoops;
            try
            {
                numberOfLoops = Integer.parseInt(data);
            }
            catch (NumberFormatException exceptNumberFormat)
            {
                IO.writeLine("Invalid response. Numeric input expected. Assuming 1.");
                numberOfLoops = 1;
            }
            for (int i=0; i < numberOfLoops; i++)
            {
                /* POTENTIAL FLAW: user supplied input used for loop counter test */
                IO.writeLine("hello world");
            }
            break;
        }

    }

    /* goodB2G() - use badsource and goodsink */
    private void goodB2G() throws Throwable
    {
        String data;

        while (true)
        {
            /* get system property user.home */
            /* POTENTIAL FLAW: Read data from a system property */
            data = System.getProperty("user.home");
            break;
        }

        while (true)
        {
            int numberOfLoops;
            try
            {
                numberOfLoops = Integer.parseInt(data);
            }
            catch (NumberFormatException exceptNumberFormat)
            {
                IO.writeLine("Invalid response. Numeric input expected. Assuming 1.");
                numberOfLoops = 1;
            }
            /* FIX: loop number thresholds validated */
            if (numberOfLoops >= 0 && numberOfLoops <= 5)
            {
                for (int i=0; i < numberOfLoops; i++)
                {
                    IO.writeLine("hello world");
                }
            }
            break;
        }
    }

    public void good() throws Throwable
    {
        goodG2B();
        goodB2G();
    }

    /* 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);
    }
}
