NNSTAT problems under SUNOS 4.0

[Guy Harris]

>The NNSTAT I have is from the os-cisu archives.  Is it supposed to run
>under SUNOS 4.0

No.

The NIT mechanism was redone in 4.0; it's implemented under streams (the
rest of the networking code is still implemented under a 4BSD framework -
4.3BSD in the case of 4.0).  Code that uses it will also have to be
redone, although you do now get to use a "packet filter" that's similar to
the Stanford packet filter (if you're not interested in seeing every
packet, and your criterion can be expressed in the packet filter's
language, you can have uninteresting packets filtered out at a low level,
so your program doesn't have to wake up and read them).

See NIT(4P), NIT_IF(4M), NIT_BUF(4M), and NIT_PF(4M).