text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE124_Buffer_Underwrite__malloc_wchar_t_loop_33.cpp
  Label Definition File: CWE124_Buffer_Underwrite__malloc.label.xml
  Template File: sources-sink-33.tmpl.cpp
  */
  /*
   * @description
   * CWE: 124 Buffer Underwrite
   * BadSource:  Set data pointer to before the allocated memory buffer
   * GoodSource: Set data pointer to the allocated memory buffer
   * Sinks: loop
   *    BadSink : Copy string to data using a loop
   * Flow Variant: 33 Data flow: use of a C++ reference to data within the same function
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  namespace CWE124_Buffer_Underwrite__malloc_wchar_t_loop_33
  {
  
  #ifndef OMITBAD
  
  void bad()
  {
      wchar_t * data;
      wchar_t * &dataRef = data;
      data = NULL;
      {
          wchar_t * dataBuffer = (wchar_t *)malloc(100*sizeof(wchar_t));
          if (dataBuffer == NULL) {exit(-1);}
          wmemset(dataBuffer, L'A', 100-1);
          dataBuffer[100-1] = L'\0';
          /* FLAW: Set data pointer to before the allocated memory buffer */
          data = dataBuffer - 8;
      }
      {
          wchar_t * data = dataRef;
          {
              size_t i;
              wchar_t source[100];
              wmemset(source, L'C', 100-1); /* fill with 'C's */
              source[100-1] = L'\0'; /* null terminate */
              /* POTENTIAL FLAW: Possibly copying data to memory before the destination buffer */
              for (i = 0; i < 100; i++)
              {
                  data[i] = source[i];
              }
              /* Ensure the destination buffer is null terminated */
              data[100-1] = L'\0';
              printWLine(data);
              /* INCIDENTAL CWE-401: Memory Leak - data may not point to location
               * returned by malloc() so can't safely call free() on it */
          }
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B()
  {
      wchar_t * data;
      wchar_t * &dataRef = data;
      data = NULL;
      {
          wchar_t * dataBuffer = (wchar_t *)malloc(100*sizeof(wchar_t));
          if (dataBuffer == NULL) {exit(-1);}
          wmemset(dataBuffer, L'A', 100-1);
          dataBuffer[100-1] = L'\0';
          /* FIX: Set data pointer to the allocated memory buffer */
          data = dataBuffer;
      }
      {
          wchar_t * data = dataRef;
          {
              size_t i;
              wchar_t source[100];
              wmemset(source, L'C', 100-1); /* fill with 'C's */
              source[100-1] = L'\0'; /* null terminate */
              /* POTENTIAL FLAW: Possibly copying data to memory before the destination buffer */
              for (i = 0; i < 100; i++)
              {
                  data[i] = source[i];
              }
              /* Ensure the destination buffer is null terminated */
              data[100-1] = L'\0';
              printWLine(data);
              /* INCIDENTAL CWE-401: Memory Leak - data may not point to location
               * returned by malloc() so can't safely call free() on it */
          }
      }
  }
  
  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 CWE124_Buffer_Underwrite__malloc_wchar_t_loop_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
  