/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE122_Heap_Based_Buffer_Overflow__cpp_CWE193_wchar_t_cpy_33.cpp
Label Definition File: CWE122_Heap_Based_Buffer_Overflow__cpp_CWE193.label.xml
Template File: sources-sink-33.tmpl.cpp
*/
/*
 * @description
 * CWE: 122 Heap Based Buffer Overflow
 * BadSource:  Allocate memory for a string, but do not allocate space for NULL terminator
 * GoodSource: Allocate enough memory for a string and the NULL terminator
 * Sinks: cpy
 *    BadSink : Copy string to data using wcscpy()
 * Flow Variant: 33 Data flow: use of a C++ reference to data within the same function
 *
 * */

#include "std_testcase.h"

#ifndef _WIN32
#include <wchar.h>
#endif

/* MAINTENANCE NOTE: The length of this string should equal the 10 */
#define SRC_STRING L"AAAAAAAAAA"

namespace CWE122_Heap_Based_Buffer_Overflow__cpp_CWE193_wchar_t_cpy_33
{

#ifndef OMITBAD

void bad()
{
    wchar_t * data;
    wchar_t * &dataRef = data;
    data = NULL;
    /* FLAW: Did not leave space for a null terminator */
    data = new wchar_t[10];
    {
        wchar_t * data = dataRef;
        {
            wchar_t source[10+1] = SRC_STRING;
            /* POTENTIAL FLAW: data may not have enough space to hold source */
            wcscpy(data, source);
            printWLine(data);
            delete [] data;
        }
    }
}

#endif /* OMITBAD */

#ifndef OMITGOOD

/* goodG2B() uses the GoodSource with the BadSink */
static void goodG2B()
{
    wchar_t * data;
    wchar_t * &dataRef = data;
    data = NULL;
    /* FIX: Allocate space for a null terminator */
    data = new wchar_t[10+1];
    {
        wchar_t * data = dataRef;
        {
            wchar_t source[10+1] = SRC_STRING;
            /* POTENTIAL FLAW: data may not have enough space to hold source */
            wcscpy(data, source);
            printWLine(data);
            delete [] data;
        }
    }
}

void good()
{
    goodG2B();
}

#endif /* OMITGOOD */

} /* close namespace */

/* 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. */
#ifdef INCLUDEMAIN

using namespace CWE122_Heap_Based_Buffer_Overflow__cpp_CWE193_wchar_t_cpy_33; /* so that we can use good and bad easily */

int main(int argc, char * argv[])
{
    /* seed randomness */
    srand( (unsigned)time(NULL) );
#ifndef OMITGOOD
    printLine("Calling good()...");
    good();
    printLine("Finished good()");
#endif /* OMITGOOD */
#ifndef OMITBAD
    printLine("Calling bad()...");
    bad();
    printLine("Finished bad()");
#endif /* OMITBAD */
    return 0;
}

#endif
