CS 176A: Homework 2

Socket Programming in C

This program is used for communication between a client and server with one program using UDP and one using TCP. The client sends a string of numbers to the server and the server adds up the numbers and then sends them back to the client until there is only one digit left.

Usage:

Client Input/Output:

Input:

./client IP PORT

Example:

csil-machine2> ./client_c_udp 128.111.49.44 32000
Enter string: 123456789101234567891012345678910

Output:

From server: 138
From server: 12
From server: 3
csil-machine2>

Server Input:

./server_c_udp PORT

Example:

csil-machine1> ./server_c_udp 32000