These are two small, extremely hacked programs to generate UDP datagrams
and send them to a destination IP address as specified on the command
line.  udpsend uses the UDP API of the kernel; udpsendraw generates the
entire IP datagram by hand using the RAW interface.

These programs are almost useless, but I'm putting them up because they're
a useful example of how to send UDP datagrams, and/or generate the
appropriate headers of an IP datagram.

For more information, see the URL:

http://www.circlemud.org/~jelson/software/udpsend.html