検索ワード: socketpair (英語 - イタリア語)

you need no adressing, you call socketpair and it returns two socket pointers.
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accept(2), bind(2), connect(2), fcntl(2), getpeername(2), getsockname(2), getsockopt(2), ioctl(2), listen(2), read(2), recv(2), select(2), send(2), shutdown(2), socketpair(2), getprotoent(3), ip(7), socket (7), tcp(7), udp(7), unix(7)
quota(1), getrlimit(2), quotacheck(8), quotaon(8)