If you need more information about a given socket-related function,
you can check the man page for that function.

On cunix.columbia.edu, this can be accomplished by typing
man -sXX FUNC

where FUNC is the function you wish to find out more about, and XX is
the man location given below


function/structure	man location
---------------------------------------
socket			3n
bind			3n
listen			3n
accept			3n
connect			3n
send			3n
recv			3n
sendto			3n
recvfrom		3n
close			2
htons			3n
htonl			3n
ntohl			3n
ntohs			3n
select			3c
bzero			3c
gethostname		3c
gethostbyaddr		3n
inet_addr		3n
inet_ntoa		3n
signal			3c
exit			3c