text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE122_Heap_Based_Buffer_Overflow__c_CWE805_int64_t_memmove_06.c
  Label Definition File: CWE122_Heap_Based_Buffer_Overflow__c_CWE805.label.xml
  Template File: sources-sink-06.tmpl.c
  */
  /*
   * @description
   * CWE: 122 Heap Based Buffer Overflow
   * BadSource:  Allocate using malloc() and set data pointer to a small buffer
   * GoodSource: Allocate using malloc() and set data pointer to a large buffer
   * Sink: memmove
   *    BadSink : Copy int64_t array to data using memmove
   * Flow Variant: 06 Control flow: if(STATIC_CONST_FIVE==5) and if(STATIC_CONST_FIVE!=5)
   *
   * */
  
  #include "std_testcase.h"
  
  /* The variable below is declared "const", so a tool should be able
   * to identify that reads of this will always give its initialized value. */
  static const int STATIC_CONST_FIVE = 5;
  
  #ifndef OMITBAD
  
  void CWE122_Heap_Based_Buffer_Overflow__c_CWE805_int64_t_memmove_06_bad()
  {
      int64_t * data;
      data = NULL;
      if(STATIC_CONST_FIVE==5)
      {
          /* FLAW: Allocate and point data to a small buffer that is smaller than the large buffer used in the sinks */
          data = (int64_t *)malloc(50*sizeof(int64_t));
          if (data == NULL) {exit(-1);}
      }
      {
          int64_t source[100] = {0}; /* fill with 0's */
          /* POTENTIAL FLAW: Possible buffer overflow if data < 100 */
          memmove(data, source, 100*sizeof(int64_t));
          printLongLongLine(data[0]);
          free(data);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B1() - use goodsource and badsink by changing the STATIC_CONST_FIVE==5 to STATIC_CONST_FIVE!=5 */
  static void goodG2B1()
  {
      int64_t * data;
      data = NULL;
      if(STATIC_CONST_FIVE!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          printLine("Benign, fixed string");
      }
      else
      {
          /* FIX: Allocate and point data to a large buffer that is at least as large as the large buffer used in the sink */
          data = (int64_t *)malloc(100*sizeof(int64_t));
          if (data == NULL) {exit(-1);}
      }
      {
          int64_t source[100] = {0}; /* fill with 0's */
          /* POTENTIAL FLAW: Possible buffer overflow if data < 100 */
          memmove(data, source, 100*sizeof(int64_t));
          printLongLongLine(data[0]);
          free(data);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if statement */
  static void goodG2B2()
  {
      int64_t * data;
      data = NULL;
      if(STATIC_CONST_FIVE==5)
      {
          /* FIX: Allocate and point data to a large buffer that is at least as large as the large buffer used in the sink */
          data = (int64_t *)malloc(100*sizeof(int64_t));
          if (data == NULL) {exit(-1);}
      }
      {
          int64_t source[100] = {0}; /* fill with 0's */
          /* POTENTIAL FLAW: Possible buffer overflow if data < 100 */
          memmove(data, source, 100*sizeof(int64_t));
          printLongLongLine(data[0]);
          free(data);
      }
  }
  
  void CWE122_Heap_Based_Buffer_Overflow__c_CWE805_int64_t_memmove_06_good()
  {
      goodG2B1();
      goodG2B2();
  }
  
  #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()...");
      CWE122_Heap_Based_Buffer_Overflow__c_CWE805_int64_t_memmove_06_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE122_Heap_Based_Buffer_Overflow__c_CWE805_int64_t_memmove_06_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  