text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE190_Integer_Overflow__int_fgets_add_61a.c
  Label Definition File: CWE190_Integer_Overflow__int.label.xml
  Template File: sources-sinks-61a.tmpl.c
  */
  /*
   * @description
   * CWE: 190 Integer Overflow
   * BadSource: fgets Read data from the console using fgets()
   * GoodSource: Set data to a small, non-zero number (two)
   * Sinks: add
   *    GoodSink: Ensure there will not be an overflow before adding 1 to data
   *    BadSink : Add 1 to data, which can cause an overflow
   * Flow Variant: 61 Data flow: data returned from one function to another in different source files
   *
   * */
  
  #include "std_testcase.h"
  
  #define CHAR_ARRAY_SIZE (3 * sizeof(data) + 2)
  
  #ifndef OMITBAD
  
  /* bad function declaration */
  int CWE190_Integer_Overflow__int_fgets_add_61b_badSource(int data);
  
  void CWE190_Integer_Overflow__int_fgets_add_61_bad()
  {
      int data;
      /* Initialize data */
      data = 0;
      data = CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data);
      {
          /* POTENTIAL FLAW: Adding 1 to data could cause an overflow */
          int result = data + 1;
          printIntLine(result);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  int CWE190_Integer_Overflow__int_fgets_add_61b_goodG2BSource(int data);
  
  static void goodG2B()
  {
      int data;
      /* Initialize data */
      data = 0;
      data = CWE190_Integer_Overflow__int_fgets_add_61b_goodG2BSource(data);
      {
          /* POTENTIAL FLAW: Adding 1 to data could cause an overflow */
          int result = data + 1;
          printIntLine(result);
      }
  }
  
  /* goodB2G uses the BadSource with the GoodSink */
  int CWE190_Integer_Overflow__int_fgets_add_61b_goodB2GSource(int data);
  
  static void goodB2G()
  {
      int data;
      /* Initialize data */
      data = 0;
      data = CWE190_Integer_Overflow__int_fgets_add_61b_goodB2GSource(data);
      /* FIX: Add a check to prevent an overflow from occurring */
      if (data < INT_MAX)
      {
          int result = data + 1;
          printIntLine(result);
      }
      else
      {
          printLine("data value is too large to perform arithmetic safely.");
      }
  }
  
  void CWE190_Integer_Overflow__int_fgets_add_61_good()
  {
      goodG2B();
      goodB2G();
  }
  
  #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()...");
      CWE190_Integer_Overflow__int_fgets_add_61_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE190_Integer_Overflow__int_fgets_add_61_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  