text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE401_Memory_Leak__char_realloc_02.c
  Label Definition File: CWE401_Memory_Leak.c.label.xml
  Template File: sources-sinks-02.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: 02 Control flow: if(1) and if(0)
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifndef OMITBAD
  
  void CWE401_Memory_Leak__char_realloc_02_bad()
  {
      char * data;
      data = NULL;
      if(1)
      {
          data = NULL;
          /* POTENTIAL FLAW: Allocate memory on the heap */
          data = (char *)realloc(data, 100*sizeof(char));
          /* Initialize and make use of data */
          strcpy(data, "A String");
          printLine(data);
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
              /* FIX: Use memory allocated on the stack */
              char data_goodbuf[100];
              data = data_goodbuf;
              /* Initialize and make use of data */
              strcpy(data, "A String");
              printLine(data);
          }
      }
      if(1)
      {
          /* POTENTIAL FLAW: No deallocation */
          ; /* empty statement needed for some flow variants */
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* FIX: Deallocate memory */
          free(data);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodB2G1() - use badsource and goodsink by changing the second 1 to 0 */
  static void goodB2G1()
  {
      char * data;
      data = NULL;
      if(1)
      {
          data = NULL;
          /* POTENTIAL FLAW: Allocate memory on the heap */
          data = (char *)realloc(data, 100*sizeof(char));
          /* Initialize and make use of data */
          strcpy(data, "A String");
          printLine(data);
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
              /* FIX: Use memory allocated on the stack */
              char data_goodbuf[100];
              data = data_goodbuf;
              /* Initialize and make use of data */
              strcpy(data, "A String");
              printLine(data);
          }
      }
      if(0)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* POTENTIAL FLAW: No deallocation */
          ; /* empty statement needed for some flow variants */
      }
      else
      {
          /* FIX: Deallocate memory */
          free(data);
      }
  }
  
  /* goodB2G2() - use badsource and goodsink by reversing the blocks in the second if */
  static void goodB2G2()
  {
      char * data;
      data = NULL;
      if(1)
      {
          data = NULL;
          /* POTENTIAL FLAW: Allocate memory on the heap */
          data = (char *)realloc(data, 100*sizeof(char));
          /* Initialize and make use of data */
          strcpy(data, "A String");
          printLine(data);
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
              /* FIX: Use memory allocated on the stack */
              char data_goodbuf[100];
              data = data_goodbuf;
              /* Initialize and make use of data */
              strcpy(data, "A String");
              printLine(data);
          }
      }
      if(1)
      {
          /* FIX: Deallocate memory */
          free(data);
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* POTENTIAL FLAW: No deallocation */
          ; /* empty statement needed for some flow variants */
      }
  }
  
  /* goodG2B1() - use goodsource and badsink by changing the first 1 to 0 */
  static void goodG2B1()
  {
      char * data;
      data = NULL;
      if(0)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          data = NULL;
          /* POTENTIAL FLAW: Allocate memory on the heap */
          data = (char *)realloc(data, 100*sizeof(char));
          /* Initialize and make use of data */
          strcpy(data, "A String");
          printLine(data);
      }
      else
      {
          {
              /* FIX: Use memory allocated on the stack */
              char data_goodbuf[100];
              data = data_goodbuf;
              /* Initialize and make use of data */
              strcpy(data, "A String");
              printLine(data);
          }
      }
      if(1)
      {
          /* POTENTIAL FLAW: No deallocation */
          ; /* empty statement needed for some flow variants */
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* FIX: Deallocate memory */
          free(data);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the first if */
  static void goodG2B2()
  {
      char * data;
      data = NULL;
      if(1)
      {
          {
              /* FIX: Use memory allocated on the stack */
              char data_goodbuf[100];
              data = data_goodbuf;
              /* Initialize and make use of data */
              strcpy(data, "A String");
              printLine(data);
          }
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          data = NULL;
          /* POTENTIAL FLAW: Allocate memory on the heap */
          data = (char *)realloc(data, 100*sizeof(char));
          /* Initialize and make use of data */
          strcpy(data, "A String");
          printLine(data);
      }
      if(1)
      {
          /* POTENTIAL FLAW: No deallocation */
          ; /* empty statement needed for some flow variants */
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* FIX: Deallocate memory */
          free(data);
      }
  }
  
  void CWE401_Memory_Leak__char_realloc_02_good()
  {
      goodB2G1();
      goodB2G2();
      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()...");
      CWE401_Memory_Leak__char_realloc_02_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE401_Memory_Leak__char_realloc_02_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  