Hello,

File.catname does not handle properly a destination if it contains an ending slash or backslash:
irb(main):002:0> File.catname "hello", "/usr"
"/usr/hello"
irb(main):003:0> File.catname "hello", "/usr/hello"
"/usr/hello"
irb(main):004:0> File.catname "hello", "/usr/"
NameError: undefined method `+' for nil
/usr/local/lib/ruby/1.6/ftools.rb:11:in `catname'
(irb):4:in `irb_binding'
irb(main):005:0> 

Line 11 is:
  if to[-1,1] != '/' then '/' end + basename(from)
but it should be something like:
  if to[-1,1] != '/' then '/' else '' end + basename(from)
or
  if to[-1,1] != '/' then '/' + basename(from) else basename(from) end

The same fix must be applied on line 9 (which is the antislash case).


Mike.