Write a UDP server 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.

The program should be in C language and in three files: header file, one $.$c file for server, and one $.$c file for client.

I have some initial code but please fix all necessary errors. The screenshot of the code and the expected result is attached.

Thank you!