cleanup error handling on mode change failure.
TODO: non-IPv4 kernel support should be improved. "netstat" should be okay,
"inet.ip" and "inet.icmp" needs more trick.
NetBSD PR: 9157
that `systat doesn't handle errors'. Second off, errx should not be used directly, since
the terminal should be cleaned up before bailing. Third off, whatever we do we need
to be consistent.
There, I feel better now.
1.) fix a bug which caused coredumps when starting with no mode arguments
2.) move to table-lookup for mode-specific command parsing as well.
all command matching is now table-driven.
Vastly simplify handling of mode switches, and short-syntax interval
changes. Substring matching of mode names and commands will come
shortly, however the previous method of substring matching modes (it was
not available for commands) is currently not working.
TODO: implement table lookups for mode-specific commands.
table lookup. This will make prefix matching and so on easier.
Expect a similar change for mode-specific commands before too long.
While there, rename some structures with misleading names.
Watch this space for more changes soon.
jwise