Looking at screend, and its advances, are there any .o files for
Ultrix 4. which bring its interface upto date with the recent
changes for BSD (such as passing ifp to ip_forwardscreen) ? What
about Digital Unix (or OSF/1) ?
Also, something which I find a little concerning is the limit of
120 bytes in the ioctl, allowing only 98 bytes (or less) of IP header info
to be passed back. This is less than the maximum size of a combined TCP/IP
header (both of which can be 64 bytes in size). Has a solution to this
problem ever been found ?