Group Members:

• Juhua Huang (jhhuang7)
• Lorin Achey (lorinachey)
• Patrick Coppock (pcoppock1)

Division of Work:

• Initial arg checking: Juhua
• Set up TCP connection on client side: Lorin
• Process client requests: Lorin
• Multi-threading on server to handle multiple clients: Patrick
• Process requests from client on server side: Juhua

Descriptions of all files:

• ttweetser.c: C source code for server
• ttweetcli.c: C source code for client
• ttweet.h: Header file used for ttweetser.c and ttweetcli.c
• Makefile: File to be run with “make” to convert the source code into binary

Protocol description of the messages exchanged between Client and Server:

• The client will read from stdin a maximum of 3 strings. The first string is the command and the reading two strings are specific to the command.
• Based on the command, the client will then send a string buffer to the server. The string buffer will consist of a command code (first two characters) with the second and third strings read from stdin appended onto the end.
• Command codes: -w for tweet​; -s for subscribe; -n for unsubscribe; -i for timeline; -u for getusers; -t for gettweets; -e for exit; -c for connect.
• Once the sever receives the string buffer from the client, it will parse the buffer and split the buffer into 3 strings. Based on the first string (command code), the server will then use the second and third strings to complete the given client request.
• Once client requests are completed on the server side with info stored/ cleared from memory done, it will send back a response to the client. The client simply receives this response and prints it to stdout.

Instructions for compiling and running client and server programs:

• Run “make” in terminal of the file directory
• Use “./ttweetser ServerPort” to invoke server through command line
• Use “./ttweetcli ServerIP ServerPort Username” to invoke client
• No dependent packages or any special instructions needed to test code