understanding sockets - c -

I'm trying to understand more chairs. So I found the header file in socket.h , found in the sys library, some task declarations bind (), connect () , but I could not find their definitions? Where can I find one?

Tell me that this question is not relevant, I will transfer it somewhere else

< P> You will not find your definitions in the header, you need to dig in your Libasi, but you will not find anything there because these systems are called, so you really need to dig in your kernel.