1.A client program that will consult your server andcheck if a given license plate is that of a car...

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1.A client program that will consult your server andcheck if a given license plate is that of a car that hasbeen reported as stolen.2.A  server  program  that  willrepeatedlywait  forrequests from its clients and reply whether a givenlicense plate is in its database of stolen carsMicrosoft Word - Assignment2.docx Updated last on Wednesday, March 01, 2023.  COSC 3360/6310—FUNDAMENTALS OF OPERATING SYSTEMS  Assignment #2: We have found your car!  Due on Wednesday March 29, 2023 at 11:59:59 PM  OBJECTIVE  You will learn to use datagram sockets.  OVERVIEW  You are to write two programs:  1. A client program that will consult your server and  check if a given license plate is that of a car that has  been reported as stolen.  2. A server program that will repeatedly wait for  requests from its clients and reply whether a given  license plate is in its database of stolen cars.  THE SERVER PROGRAM  Your server will start by prompting the user to enter the  name of a database of stolen cars as in:  Enter today’s stolen car DB name:  This file will contain one license plate per line with each  license plate containing up to eight letters or digits as in:  HIOFCR  SHKSPR  2DIE4  BYOFCR  TNYMNI  2FAST4U  Note that spaces are expressly excluded. Your server  should then prompt for a port number as in:  Enter the server port number: 2468  It will then:  1. Create a datagram socket in the Internet domain,  2. Do a bind()to bind to the socket to the specified  port number  3. Enter an infinite loop where it will repeatedly do a  recvfrom() to receive license plate numbers from  its clients then a sendto() to let each client know  whether a given license plate number is, or is not in  its database.  All messages sent to the server will contain exactly  one license plate number. For debugging and grading  purposes, your server should print out every license plate  it receives and its status as in:  2DIE4: Reported as stolen  STOL3N: Not in the database  Your server will keep accepting client requests until  it receives a “killsvc” message from one of its clients.  THE CLIENT PROGRAM  Your client should start by prompting the user for a  server host name and a server port number as in:  Enter the server host name: localhost  Enter the server port number: 2468  It should then create a datagram socket, and prompt  the user for a car license plate as in:  Enter a license plate number: BYOFCR  It should then create a datagram socket, do a  sendto() to send that number to the server then a  recvfrom() to get its reply.  Once this reply has arrived, the client should display  the outcome of the query as in:  2DIE4: Reported as stolen  STOL3N: Not in the database  Unlike the server, each client will only handle a single  request.  HINTS  1. Please refer one of these three online socket tutorials:  https://www.geeksforgeeks.org/udp-server-client- implementation-c/  https://www.programminglogic.com/sockets- programming-in-c-using-udp-datagrams/  https://www.softprayog.in/programming/network- socket-programming-using-udp-in-c  You can also find these links in our course Teams  pages. You can include any code from these  documents in your submissions.  2. Use a single-threaded server to keep things simple.  You will not have to not worry about zombies and  can safely ignore all suggestions to use fireman()  function.  3. Unlike the server, each client will only handle a  single request.  4. More tutorial links will be posted on Teams when  found.    Microsoft PowerPoint - Explanations2.pptx THE SECOND SPRING 2023  COSC 3360/6310 ASSIGNMENT THE PROBLEM  Build a client server pair that tells police officers whether a given  car has been reported as stolen.  To get credit, your two programs must Be written in C or C++ Use datagram sockets in the internet domain YOUR PROGRAMS Client IPC Single- threaded server Client Single- threaded Server with stolen cars database The messages being exchanged "TNYMNI" Client Single- threaded Server with stolen cars database In DB/Not in DB The messages being exchanged Client Single- threaded server "killsvc" Overview  Will have to implement a very basic talk pair  Will have to write A client that will send one request, wait for one reply then  terminate. A single-threaded server that will wait for requests from  multiple clients Client side  Client will 1. Prompt the user for server host name and port number 2. Create a socket 3. Prompt the user for a car license number 4. Send the number to the server 5. Receive the server’s reply and print it out  6. Terminate Server side  Server will 1. Read in the day's stolen car database  2. Create a socket 3. Bind an address to that socket 4. Wait for incoming messages 7. Receive and print out a message from client 8. Consult its DB and send a Yes/No reply to the client 9. Wait for next client message request Server side   Server will 1. Read in the day's stolen car database  2. Read in a port number 3. Create a socket 4. Bind an address to that socket 5. Wait for incoming messages 7. Receive and print out a message from client 8. Consult its DB and send a Yes/No reply to the client 9. Wait for next client message request Loop will end    when  the server receives a  killsvc message  Communicating through  sockets UDP socket calls (I)  socket(…) creates a new socket of a given socket type (both client and server sides)  bind(…) binds a socket to a socket address structure (server side)  close(…) close socket(server side) UDP socket calls (II)  sendto(…) sends a message (both sides)  recvfrom(…) receive a message and learn the address of its sender (server side) Summary  Client side: csd = socket(…) sendto(csd, …) recvfrom(csd, …)  Server side: ssd = socket(…) bind(…) recvfrom(ssd, …) sendto(ssd, …) Bad news and good news  The bad news is that socket calls are somewhat esoteric Might feel you are not fully understanding what you are writing  The good news is most of these mysterious options are fairly  standard  Some examples (I)  // create socket  if ((s = socket(AF_INET, SOCK_DGRAM, 0)) h_addrtype; // host address  sa.sin_port = htons(portnum);   // set port number //bind address to an existing socket if (bind(s, &sa, sizeof(struct sockaddr_in))

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Microsoft Word - Assignment2.docxUpdated last on Wednesday, March 01, 2023. COSC 3360/6310—FUNDAMENTALS OF OPERATING SYSTEMS Assignment #2: We have found your car! Due on Wednesday March 29,...

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