public override void Bad() { long data; data = long.MinValue; /* Initialize data */ { /* read user input from console with ReadLine */ try { /* FLAW: Read data from the console using ReadLine */ string stringNumber = Console.ReadLine(); if (stringNumber != null) // avoid NPD incidental warnings { try { data = long.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception parsing data from string"); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } } Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE197_Numeric_Truncation_Error__long_console_ReadLine_to_byte_72b.BadSink(dataHashtable); }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { long data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE197_Numeric_Truncation_Error__long_console_ReadLine_to_byte_72b.GoodG2BSink(dataHashtable); }