Sending an int using sockets

[danutz_plusplus]

Hi. I've searched for this for a bit, and couldn't find a thread about it. Sorry if I missed it.

Anyway, here's my problem. I'm trying to send integers over a network using sockets, and I found a code sample that apparently does that(though I didn't test it yet, so I'm not sure), but I can't understand some of the code. And I thought someone might be so kind as to explain it to me. Or if the code is incorrect maybe someone could tell how exactly do I send an int using socket. I can send char[] easily, but I just can't do it with ints.

Here's the code sample:

int n;

n=555;

if(send(socket,&n,4,0) <4)
{
// we have problem, must use connect before it!??
}

close(socket);
-----

int n;
if(recv(socket,&n,4,0)) < 4)
{

cycle until got 4
}

close
print(n)

What I mainly don't understand is the &n part, but could someone also explain what the whole if does? I guess the 4s are for the nr of bytes that are in an int. Thanks.