Problem with simple concurrent server example

hi all my problem is i have programmed a server to accept multiple clients through concurrent server approach

but when i try to execute the binding and connection accept works fine but the message at server side doesnt appear

files attached

It does print the message, but since the author forgot to put a \n at the end, it doesn't get shown on screen, just saved in a buffer:

printf("server rcvd:%s\n",buff);