TCP_Server_Client

Compile server.c

gcc server.c -o server

Compile client.c

gcc client.c -o client

Run server

./server <Port Number>

Example

./server 3000

Run client

./client <Physical IP> <Port Number>

Example

./client 192.168.123.123 3000  

Polling and non-blocking mechanisms are used to provide concurrent communication between multiple clients and a single server.

The server has a timeout set to 1 minute. If a client is not connected to the server for more than 1 minute, the server will shutdown automatically. The client can be shutdown by entering "EXIT" when user is asked for input message.

Received messages are displayed between two pipe characters (e.g. |my_message|); this allows easy readability and error detectability.

Sources/Credits:

Polling:        https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_71/rzab6/poll.htm  
Socket API:     https://linux.die.net/

UDP_Server_Client

Compile server.c

gcc server.c -o server

Compile client.c

gcc client.c -o client

Run server

./server <Port Number>

Example

./server 3000

Run client

./client <Physical IP> <Port Number> <File Name>

Example

./client 192.168.123.123 3000