TFTP driver changes

[Till Straumann]

Eric Norum wrote:

> Thanks for the code walk-through.  I've tried to fix the problems you
> found.
>
> Till Straumann wrote:
>

-- snip --

>
> >
> > Then there is another tiny problem with the TFTPfs modification:
> >
> > rtems_tftp_eval_path() should append the pathname to pathloc->node_access
> > if the latter is non_NULL because the lookup could also be relative to a CWD on
> > TFTPfs...
>
> I'm not sure that this is even possible.  The path handed to
> rtems_tftp_eval_path has the "/TFTP/" stripped off the front so I don't
> see how it would be possible for the routine to tell whether it's
> working with a relative or absolute path.
>

Simple: tftp_eval_path() checks the node argument's fileops. If they are TFTPfs',
the CWD is already on TFTPfs and hence node_access holds the necessary
path prefix :-)

-- Till.