/* goodB2G() - use BadSource and GoodSink */ private static void GoodB2G() { string data; data = ""; /* Initialize data */ { try { /* read string from file into data */ using (StreamReader sr = new StreamReader("data.txt")) { /* POTENTIAL FLAW: Read data from a file */ /* This will be reading the first "line" of the file, which * could be very long if there are little or no newlines in the file */ data = sr.ReadLine(); } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } } LinkedList <string> dataLinkedList = new LinkedList <string>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE134_Externally_Controlled_Format_String__File_Format_73b.GoodB2GSink(dataLinkedList); }
/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B() { string data; /* FIX: Use a hardcoded string */ data = "foo"; LinkedList <string> dataLinkedList = new LinkedList <string>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE134_Externally_Controlled_Format_String__File_Format_73b.GoodG2BSink(dataLinkedList); }