/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51a.c
Label Definition File: CWE121_Stack_Based_Buffer_Overflow__CWE805.label.xml
Template File: sources-sink-51a.tmpl.c
*/
/*
 * @description
 * CWE: 121 Stack Based Buffer Overflow
 * BadSource:  Set data pointer to the bad buffer
 * GoodSource: Set data pointer to the good buffer
 * Sink: memmove
 *    BadSink : Copy twoIntsStruct array to data using memmove
 * Flow Variant: 51 Data flow: data passed as an argument from one function to another in different source files
 *
 * */

#include "std_testcase.h"

#ifndef OMITBAD

/* bad function declaration */
void CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51b_badSink(twoIntsStruct * data);

void CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51_bad()
{
    twoIntsStruct * data;
    twoIntsStruct dataBadBuffer[50];
    twoIntsStruct dataGoodBuffer[100];
    /* FLAW: Set a pointer to a "small" buffer. This buffer will be used in the sinks as a destination
     * buffer in various memory copying functions using a "large" source buffer. */
    data = dataBadBuffer;
    CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51b_badSink(data);
}

#endif /* OMITBAD */

#ifndef OMITGOOD

/* good function declarations */
void CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51b_goodG2BSink(twoIntsStruct * data);

/* goodG2B uses the GoodSource with the BadSink */
static void goodG2B()
{
    twoIntsStruct * data;
    twoIntsStruct dataBadBuffer[50];
    twoIntsStruct dataGoodBuffer[100];
    /* FIX: Set a pointer to a "large" buffer, thus avoiding buffer overflows in the sinks. */
    data = dataGoodBuffer;
    CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51b_goodG2BSink(data);
}

void CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51_good()
{
    goodG2B();
}

#endif /* OMITGOOD */

/* 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

int main(int argc, char * argv[])
{
    /* seed randomness */
    srand( (unsigned)time(NULL) );
#ifndef OMITGOOD
    printLine("Calling good()...");
    CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51_good();
    printLine("Finished good()");
#endif /* OMITGOOD */
#ifndef OMITBAD
    printLine("Calling bad()...");
    CWE121_Stack_Based_Buffer_Overflow__CWE805_struct_declare_memmove_51_bad();
    printLine("Finished bad()");
#endif /* OMITBAD */
    return 0;
}

#endif
