Simple TCP client and server. 

NOTE: This code is available on the CS machines in 
	~hollingd/public.html/netprog/code/simptcp


The server creates a passive mode TCP socket and waits for connections
(after printing out the port assigned by the operating system).  Each
time a new connection is established, the server reads whatever it can
from the port and writes it to standard output. The server knows when
the client is done when a 0 is returned by read() - which indicates
the other end has closed the connection.

The server also uses getsockname() to find out the IP address and port 
number of the client, and prints this stuff out.

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The client attempts to connect to the TCP indicated by the command line
parameters. The parameters are the IP address (in dotted decimal notation)
and the port number. For example, to tell the client that the server
is running on the machine with IP address 128.213.1.100 and on port 2030
the client should be started like this:

client 128.213.1.100 2030

The client code assumes that the IP address is a number, there is no
attempt to lookup the address of a named computer (you can't say
"foo.cs.rpi.edu"). 

Once the client establishes a connection it send the string
"Networking Rules!!!" and then closes the connection. The client
does not read anything from the socket.

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client1 is a client that is idential to client, but supports machine
names (so you can say "foo.cs.rpi.edu").


Questions should be sent to netprog@cs.rpi.edu