Some observations I made while implementing this:

Some observations I made while implementing this:

- In rrd_open(), the call to rrd_init() clobbers values already populated in
rrd_create.c

- The logic for newfile_size in rrd_open() wasn't really able to cope with the
logic for a file starting with size 0

I've tried to deal with these issues, but maybe there is a more elegant solution.

-- Daniel Pocock

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1601 a5681a0c-68f1-0310-ab6d-d61299d08faa