Fix a bug in route(8)

["Nuno Antunes" <nuno.antunes@xxxxxxxxx>]

Hi,

The attached patch allows "route add 128/8 <gateway>" to work
correctly. While here, rectify the way netmasks are deduced from the
address class.

Please verify.

Noticed-by: Tom Judge <tom@tomjudge.com>
Reported-on: freebsd-net mailing list

Thanks,
Nuno

Attachment: sbin.route.patch
Description: Binary data