text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE401_Memory_Leak__char_realloc_41.c
  Label Definition File: CWE401_Memory_Leak.c.label.xml
  Template File: sources-sinks-41.tmpl.c
  */
  /*
   * @description
   * CWE: 401 Memory Leak
   * BadSource: realloc Allocate data using realloc()
   * GoodSource: Allocate data on the stack
   * Sinks:
   *    GoodSink: call free() on data
   *    BadSink : no deallocation of data
   * Flow Variant: 41 Data flow: data passed as an argument from one function to another in the same source file
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifndef OMITBAD
  
  static void badSink(char * data)
  {
      /* POTENTIAL FLAW: No deallocation */
      ; /* empty statement needed for some flow variants */
  }
  
  void CWE401_Memory_Leak__char_realloc_41_bad()
  {
      char * data;
      data = NULL;
      /* POTENTIAL FLAW: Allocate memory on the heap */
      data = (char *)realloc(data, 100*sizeof(char));
      if (data == NULL) {exit(-1);}
      /* Initialize and make use of data */
      strcpy(data, "A String");
      printLine(data);
      badSink(data);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  static void goodG2BSink(char * data)
  {
      /* POTENTIAL FLAW: No deallocation */
      ; /* empty statement needed for some flow variants */
  }
  
  static void goodG2B()
  {
      char * data;
      data = NULL;
      /* FIX: Use memory allocated on the stack with ALLOCA */
      data = (char *)ALLOCA(100*sizeof(char));
      /* Initialize and make use of data */
      strcpy(data, "A String");
      printLine(data);
      goodG2BSink(data);
  }
  
  /* goodB2G uses the BadSource with the GoodSink */
  static void goodB2GSink(char * data)
  {
      /* FIX: Deallocate memory */
      free(data);
  }
  
  static void goodB2G()
  {
      char * data;
      data = NULL;
      /* POTENTIAL FLAW: Allocate memory on the heap */
      data = (char *)realloc(data, 100*sizeof(char));
      if (data == NULL) {exit(-1);}
      /* Initialize and make use of data */
      strcpy(data, "A String");
      printLine(data);
      goodB2GSink(data);
  }
  
  void CWE401_Memory_Leak__char_realloc_41_good()
  {
      goodB2G();
      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()...");
      CWE401_Memory_Leak__char_realloc_41_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE401_Memory_Leak__char_realloc_41_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  