/* 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; Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE197_Numeric_Truncation_Error__double_connect_tcp_to_byte_72b.GoodG2BSink(dataHashtable); }
public override void Bad() { double data; data = double.MinValue; /* Initialize data */ /* Read data using an outbound tcp connection */ { TcpClient tcpConn = null; StreamReader sr = null; try { /* Read data using an outbound tcp connection */ tcpConn = new TcpClient("host.example.org", 39544); /* read input from socket */ sr = new StreamReader(tcpConn.GetStream()); /* FLAW: Read data using an outbound tcp connection */ string stringNumber = sr.ReadLine(); 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"); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } finally { /* clean up stream reading objects */ try { if (sr != null) { sr.Close(); } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error closing InputStreamReader"); } /* clean up socket objects */ try { if (tcpConn != null) { tcpConn.Close(); } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error closing Socket"); } } } Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE197_Numeric_Truncation_Error__double_connect_tcp_to_byte_72b.BadSink(dataHashtable); }