--rw-rw-r-- geoff sys 6598 Dec  5  2013 diffio.c
--rw-rw-r-- geoff sys 6599 Dec  5  2013 diffio.c.orig
--rw-rw-rw- geoff sys   22 Dec  5  2013 email
--rw-rw-r-- geoff sys   36 Dec  5  2013 files
--rw-rw-r-- geoff sys    0 Dec  5  2013 notes
--rw-rw-r-- geoff sys   58 Feb 23  2014 origls
--rw-rw-r-- geoff sys   78 Dec  5  2013 readme