Write a UDP clisent$-$server program that knows Palindrome in C language. Notice that it is not case sensitive$.$It also ignore all non$-$letters. The UDP client will send in a sentence at a time. The server will respond a message to indicate if the sentence is a palindrome or not. Client side send empty message $($i$.$e$.$just hit on $$Enter$$key$)$to close server side. Three files: header.h file, server.c file for server, and client.c file for client.

I have some initial code but please fix all necessary errors, so I can have a working program with $3$ files. The screenshot of the incomplete code and the expected result is attached.

P$.$S$.$ I need a WORKING CODE, not just an algoritm or steps for implementation. Thank you!