BUGS REMAINING/ADDED:
---------------------
usernames are limited to 64 characters.

if a user logs off then back on in between two remote rollcalls, he will
still get new mail notices requested during his previous login.  this may
be a feature.

comsat should be split into multiple source files.

on extremely active systems, roll may never be called.

gack() should time out.

getservbyname() appears to be really slow, at least on Suns.  Yellow Pages
should be outlawed.  YP is also responsible for the fact that biff and rbiff
need to have different names.

in biff.c, addusers() and delusers() should be combined.


BUGS FIXED FROM OLD VERSION:
----------------------------
2-line message bodies are handled correctly; the old comsat would print
"...more..." even if there wasn't anything more.

blank lines in the message body aren't shown.

since biff is now setuid-root, Sunview users can turn biff on and off in
specific windows.
