(libruby) reading a file line by line

Hi All,

Basically what I would like to do is read a file in line by line chomping
the line on the way. It's easy enough in c but I would like to do it using
the functionality from libruby.

I've go the file object using rb_file_open(), can someone suggest how I
might use each_line to do what I want to?

Cheers,
Phil