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| TCP Client Server Programming 1 1. Objective The objective of this first programming project is to learn TCP iterative client-server interaction using socket interface in C programming language. After completing the project, you will have a basic understanding of the steps required to develop a networking application. 2. Project Specification In this project, you are required to do socket programming in C programming to implement a pair of client and server that can achieve simple password verification to indicate the Bitcoin value. Your client will send a pair of currency name and password to your server and your server will verify whether the pair of currency name and password is legitimate or not for retrieving the Bitcoin value. Allow up to 3 clients to simultaneously connect to the server. Assume the only legitimate pairs of currency names and passwords that will be accepted by your server are as follows: Currency Name Password Bitcoin value US Dollar uCh781fY 11081.00 Canadian Dollar Cfw61RqV 14632.87 Euro Pd82bG57 9359.20 British Pound Crc51RqV 8578.96 Japanese Yen wD82bV67 1158748.55 Swiss Franc G6M7p8az 10100.44 For example. If the Client sends a pair of currency and password values as: "US Dollar" and "uCh781fY", the server retrieves the Bitcoin value as 11081.00. CS5133: Data Networks Project-1 TCP Client Server Programming Due Date: Upload to Canvas 10/9/2022 100 pts Fall - 2022 | TCP Client Server Programming 2 Your client and server programs entail to achieve the following requirements: 1. Your client program needs to take two arguments that specify the name of server and the port that it is trying to connect to. Your program for server needs to take an argument that specifies the port that it is listening to. You can use (5000+last 4 digits of your student-id number) to avoid requesting same port by multiple students. 2. The server program will start first and keep listening to the specified port. Your client will connect to the port that your server is listening to, and a socket between your client and server is constructed. 3. Initially as there are 2 servers present, the client needs to connect to the server which is less busy than the other server. You can use random function in C to find out the load on a server. So the servers reply between 0-1. (For example, if server 1 replies 0.1 and server 2 replies with 0.5, then the client will select server 1 as its less busy). 4. Once the server replies to the client, the client needs to decide which server to connect, it should connect to the server which is less busy. 5. After successful startup, the server program will ask the clients to join the server and maximum number of clients (i.e., 3) can join the server for retrieving the Bitcoin value. 6. Your client program will first prompt a welcome message that asks the user to enter a currency name using the keyboard. This currency name will then be sent to the server. Then, your server, after receiving the currency name from your client, will send an acknowledgment message to the client. | TCP Client Server Programming 3 7. Your client, after receiving the acknowledgment message from your server, will prompt a message that asks the user to enter the corresponding password. This password will then be sent to the server. Then, your server, after receiving the password from your client, will verify the received pair of currency name and password against the list of legitimate pairs. If the result is positive, the server will send a success message along with the current Bitcoin value for the currency to the client. If the result is negative, the server will send a failure message to the client. 8. Your client, after receiving the result message (i.e., Bitcoin value), will print out the result. Then, the client sends “QUIT” message to close the socket. Your server will close the socket following the client and keep listening for the next client request. 9. Your server will close the socket after waiting for the currency name or the password for 30 seconds. 3. Programming Notes I suggest you start modifying the TCP server program and TCP client program given in the Project 0. Your server program needs to handle currency name and password for authentication. I would recommend you to store the currency name, password, and Bitcoin values in the TCP server program as an Array of Strings. However, other forms of key-value pairs, such as Dictionary, etc. are also accepted. File names: Make sure you follow the file name guideline given below for your project: lastNameP1Client.c, and lastNameP1Server.c 4. Points Distribution Components Points Client Program 35 Server Program 35 Program Style (Coding style, comments etc.) 10 Documentation 20 5. Submission Instructions: This project requires the submission of a soft copy. Soft Copy (Due October 9, 2022, 11:59 pm) The soft copy should consist of: • source code of the Client program, • source code of the Server program, • any header file(s), and | TCP Client Server Programming 4 • detailed documentation should consist of: o discussion of your problem-solving approach o detailed analysis of data structures, algorithms, and user define functions o any legitimate assumption(s) with justification, and o screen shots of outputs These must be submitted through Canvas (http://canvas.ou.edu). 6. Late Penalty: You have to submit your project on or before the due date to avoid any late penalty. A late penalty of 15% per day will be imposed after the due date. After one week from the due date, you will not be allowed to submit the project under any circumstances. Good Luck!!