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Experiment 13: TCP/IP Sockets
Write Using TCP/IP sockets, write a client – server
program to make the client send the file name and to
make the server send back the contents of the
requested file if present
Theory:
The socket is a fundamental concept to the operation of TCP/IP application software. It is
also an interface between the application and the network. The exchange of data between a
pair of devices consists of a series of messages sent from a socket on one device to a socket
on other.
Once the socket is configured, the application can send the data using sockets for network
transmission and receive the data using sockets from the other host. A socket communication
can be connection oriented (TCP sockets) or connectionless (UDP sockets).
There is a receiver (TCP) server, which listens to the sender (TCP) client communications.
There can be two-way communication.
Algorithm:

Create a socket using address family (AF_INET), type (SOCK_STREM) and protocol
(TCP)

Initialize the address family, port no and IP address to communicate using sockets

Bind a local address and port number with a socket

Listen for an incoming socket connection

Accept an incoming connection attempt on a socket

Receive an incoming message

Write that incoming message to Output.txt

Send ACK to received socket
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