socket() socket()
bind() bind()
listen()
accept()
connect()
send()
recv()
sendmsg()
recvmsg()
send()
recv()
sendmsg()
recvmsg()
shutdown() shutdown()
socket() socket()
bind() bind()
recvfrom()
sendto()
sendto()
recvfrom()
sendto()
recvfrom()
shutdown() shutdown()