C :: Program Doesn't Print Data From Socket

I created a basic socket server, which listensing for incoming udp data. When I run the netcat program, I get a response:

Code:
$ nc -luv 1732
Connection from 10.50.11.12 port 1732 [udp/*] accepted
(?@??8?? ??.?n?5
(?@??8?? ??.?n?5|?>)
(?@??8?? ??.?n?5|?>)
^C |?>)

But with my c program it doesn't give the response. It should say something like "here is the message: " and then give a message.

Code:
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>

[Code] .....