Check if server is up

[Snowfox]

i like knowing the instant(within a second) of when a server comes up. I plan on actually redoing this coding and using a simple winsock function though i will have to wait until the server comes up to see how the server actually responds to packets. for example if u send a packet and it returns ones then you could check and see if it returned something... But some servers tend to no send anything back. Thus making me use this function that im currently using which isnt mine.
I really hate using other peoples code.