1. The Transport Layer Socket Programming
CE 306

2. Application to TCP Interface
process sends/receives messages to/from its socket

3. Berkley Socket Primitives for TCP

4. TCP Socket: Overall Structure

5. UDP Socket: Overall Structure

6. Bridge Between App and TCP

7. Binding to Server

8. Server Waiting for Clients

9. Server Accepting Client Requests

10. TCP Data Exchange

11. Send() and Receive() Variants

12. UDP: Data Exchange

13. Terminate the Connection

14. Resolving Server and Client Addresses

15. Gethostbyname(): Sample Call

16. Example: UDP Client

17. TCP: Simple ECHO Client
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

18. TCP: Simple ECHO Server
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

19. Example Code