/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE134_Uncontrolled_Format_String__Property_printf_16.java
Label Definition File: CWE134_Uncontrolled_Format_String.label.xml
Template File: sources-sinks-16.tmpl.java
*/
/*
* @description
* CWE: 134 Uncontrolled Format String
* BadSource: Property Read data from a system property
* GoodSource: A hardcoded string
* Sinks: printf
*    GoodSink: dynamic printf format with string defined
*    BadSink : dynamic printf without validation
* Flow Variant: 16 Control flow: while(true)
*
* */




public class CWE134_Uncontrolled_Format_String__Property_printf_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)
        {
            if (data != null)
            {
                /* POTENTIAL FLAW: uncontrolled string formatting */
                System.out.printf(data);
            }
            break;
        }
    }

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

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

        while (true)
        {
            if (data != null)
            {
                /* POTENTIAL FLAW: uncontrolled string formatting */
                System.out.printf(data);
            }
            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)
        {
            if (data != null)
            {
                /* FIX: explicitly defined string formatting */
                System.out.printf("%s%n", data);
            }
            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);
    }
}
