packetsInC

Assignment:

You make 4 applications (UDP Client, UDP Server, TCP Client and TCP Server) that can communicate with each other over the internet via Berkley sockets in C. The 2 Server applications and the 2 Client applications may run on your laptop.

UDP Smartphone sensor stream analyzer (15%) [App]

Which parts have been achieved from the UDP Client?

• Working Client application that sends number of packets to send via UDP (proof Packet Sender) [2/15]

Which parts have been achieved from the UDP Server?

• Working Server application receiving data via UDP (Evidence Packet Sender) [2/15]

• CSV of received stream is created [1/15]

• Tracks the number of packets received [1/15]

• Set a number of packets to receive [1/15]

• The time difference between first and last packet is shown [1/15]

• *Timeout can be set [2/15]

• *When timed out the number actually received versus expected number is shown with packet loss calculation [2/15]

• *The data is parsed on the server and a min, max and avg is kept [2/15]

• *Statistical data is kept in a file [1/15]

TCP Chatbox with history via HTTP (25%)

Which parts have been achieved from the TCP Client?

• Client can make TCP connection (proof via WireShark) [1/25]

• Client can successfully send and receive TCP packets (proof via WireShark) [1/25]

• Client forwards the messages entered by the user (Proof Packet Sender) [1/25]

• *Messages can be sent and received simultaneously on the Client without an agreed rotational role (e.g. multi-threaded) [4/25]

Which parts have been achieved from the TCP Server?

• Server can listen to a port for incoming TCP connections [1/25]

• Server accepts connection and talks to connected client over TCP [1/25]

• Server application forwards received message to all other participants [1/25]

• Server does not send to sender its own message [1/25]

• Server sends the sender information along with the message (i.e. IP address + sender's port) OR Server sends the information of new client connection to all other connected clients (i.e. IP address + sender's port) [2/ 25]

• Server sends the last 16 chat messages to the client on new connection [2/25]

• Server can perform HTTP communication with the web server (proof via WireShark) [2/25]

• *Server forwards the chat messages over HTTP to the web server (proof via WireShark) [2/25]

• *Server requests the last 16 chat messages via HTTP to the web server (at startup) [2/25]

• *Multiple Clients can be simultaneously connected and chatting with each other (i.e. processed asynchronously or synchronously on the server) [4/25]