text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE127_Buffer_Underread__new_wchar_t_ncpy_44.cpp
  Label Definition File: CWE127_Buffer_Underread__new.label.xml
  Template File: sources-sink-44.tmpl.cpp
  */
  /*
   * @description
   * CWE: 127 Buffer Under-read
   * BadSource:  Set data pointer to before the allocated memory buffer
   * GoodSource: Set data pointer to the allocated memory buffer
   * Sinks: ncpy
   *    BadSink : Copy data to string using wcsncpy
   * Flow Variant: 44 Data/control flow: data passed as an argument from one function to a function in the same source file called via a function pointer
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  namespace CWE127_Buffer_Underread__new_wchar_t_ncpy_44
  {
  
  #ifndef OMITBAD
  
  static void bad_sink(wchar_t * data)
  {
      {
          wchar_t dest[100];
          wmemset(dest, L'C', 100-1); /* fill with 'C's */
          dest[100-1] = L'\0'; /* null terminate */
          /* POTENTIAL FLAW: Possibly copy from a memory location located before the source buffer */
          wcsncpy(dest, data, wcslen(dest));
          /* Ensure null termination */
          dest[100-1] = L'\0';
          printWLine(dest);
          /* INCIDENTAL CWE-401: Memory Leak - data may not point to location
             returned by new [] so can't safely call delete [] on it */
      }
  }
  
  void bad()
  {
      wchar_t * data;
      /* define a function pointer */
      void (*func_ptr) (wchar_t *) = bad_sink;
      data = NULL;
      {
          wchar_t * data_buf = new wchar_t[100];
          wmemset(data_buf, L'A', 100-1);
          data_buf[100-1] = L'\0';
          /* FLAW: Set data pointer to before the allocated memory buffer */
          data = data_buf - 8;
      }
      /* use the function pointer */
      func_ptr(data);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B_sink(wchar_t * data)
  {
      {
          wchar_t dest[100];
          wmemset(dest, L'C', 100-1); /* fill with 'C's */
          dest[100-1] = L'\0'; /* null terminate */
          /* POTENTIAL FLAW: Possibly copy from a memory location located before the source buffer */
          wcsncpy(dest, data, wcslen(dest));
          /* Ensure null termination */
          dest[100-1] = L'\0';
          printWLine(dest);
          /* INCIDENTAL CWE-401: Memory Leak - data may not point to location
             returned by new [] so can't safely call delete [] on it */
      }
  }
  
  static void goodG2B()
  {
      wchar_t * data;
      void (*func_ptr) (wchar_t *) = goodG2B_sink;
      data = NULL;
      {
          wchar_t * data_buf = new wchar_t[100];
          wmemset(data_buf, L'A', 100-1);
          data_buf[100-1] = L'\0';
          /* FIX: Set data pointer to the allocated memory buffer */
          data = data_buf;
      }
      func_ptr(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 CWE127_Buffer_Underread__new_wchar_t_ncpy_44; // 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
  