/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B() { float data; /* FIX: Use a hardcoded number that won't a divide by zero */ data = 2.0f; Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE369_Divide_by_Zero__float_database_divide_72b.GoodG2BSink(dataHashtable); }
public override void Bad() { float data; data = -1.0f; /* Initialize data */ /* Read data from a database */ { try { /* setup the connection */ using (SqlConnection connection = IO.GetDBConnection()) { connection.Open(); /* prepare and execute a (hardcoded) query */ using (SqlCommand command = new SqlCommand(null, connection)) { command.CommandText = "select name from users where id=0"; command.Prepare(); using (SqlDataReader dr = command.ExecuteReader()) { /* POTENTIAL FLAW: Read data from a database query SqlDataReader */ string stringNumber = dr.GetString(1); if (stringNumber != null) /* avoid NPD incidental warnings */ { try { data = int.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception parsing data from string"); } } } } } } catch (SqlException exceptSql) { IO.Logger.Log(NLog.LogLevel.Warn, exceptSql, "Error with SQL statement"); } } Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE369_Divide_by_Zero__float_database_divide_72b.BadSink(dataHashtable); }