public override void Bad() { double data; data = double.MinValue; /* Initialize data */ /* get environment variable ADD */ /* FLAW: Read data from an environment variable */ { string stringNumber = Environment.GetEnvironmentVariable("ADD"); if (stringNumber != null) // avoid NPD incidental warnings { try { data = double.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception parsing data from string"); } } } Dictionary <int, double> dataDictionary = new Dictionary <int, double>(); dataDictionary.Add(0, data); dataDictionary.Add(1, data); dataDictionary.Add(2, data); CWE197_Numeric_Truncation_Error__double_Environment_to_short_74b.BadSink(dataDictionary); }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { double data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; Dictionary <int, double> dataDictionary = new Dictionary <int, double>(); dataDictionary.Add(0, data); dataDictionary.Add(1, data); dataDictionary.Add(2, data); CWE197_Numeric_Truncation_Error__double_Environment_to_short_74b.GoodG2BSink(dataDictionary); }