I should point out that there *IS* no such thing as out-of-band data in
TCP.

There is only an urgent pointer in TCP, and the BSD sockets interface
misleads you to think there is OOB data associated with the urgent
pointer.

About the only thing you can count on with an urgent pointer is that you
can get a SIGURG when someone sends you a packet with the urgent bit
set.

Just another example why rlogin is a kludge and telnet is a protocol.

==John