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"); } } } double[] dataArray = new double[5]; dataArray[2] = data; CWE197_Numeric_Truncation_Error__double_Environment_to_float_66b.BadSink(dataArray); }
/* 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; double[] dataArray = new double[5]; dataArray[2] = data; CWE197_Numeric_Truncation_Error__double_Environment_to_float_66b.GoodG2BSink(dataArray); }