Key Terms and Concepts

"local_sock.h" include file

__SOCKADDR_COMMON(sa_) macro

include file

include file

include file

include file

include file

include file

include file

include file

accept system call

address resolution protocol (ARP)

AF_INET

AF_UNIX

American Registry for Internet Numbers (ARIN)

arp utility

ARP/RARP

Asia Pacific Network Information Center (APNIC)

BIND

bind system call

bzero library function

Class A network

Class B network

Class C network

communication domain

connect system call

connectionless communication

connection-oriented communication

datagram socket

dig utility

domain name system (DNS)

dotted decimal notation (DDN)

dynamic ports

ephemeral ports

Ethernet address

EWOULDBLOCK

fcntl system call

FD_CLR macro

FD_ISSET macro

FD_SET macro

FD_ZERO macro

file descriptor masks

fortune utility

gethostbyaddr library function

gethostbyname library function

getservbyname library function

getservent library function

host utility

hostent structure

hostid

ICANN (the Internet Corporation for Assigned Names and Numbers)

ICMP

ifconfig utility

in_addr structure

INADDR_ANY

inet _ ntoa library function

International Standards Organization (ISO)

Internet (IP) address

Internet domain

Internet Network Information Center (InterNIC)

IPPORT_USERRESERVED

IPPROTO_TCP

IPPROTO_UDP

IPv4

ipv4 subdirectory

IPv6

listen system call

media access control (MAC) address

memcpy library function

memset library function

mkstemp library function

MSG_CONFIRM

MSG_DONTROUTE

MSG_DONTWAIT

MSG_ERRQUEUE

MSG_NOSIGNAL

MSG_NOSIGNAL

MSG_OOB

MSG_PEEK

MSG_TRUNC

MSG_WAITALL

msghdr structure

nanosleep system call

NETBIOS

netid

netstat utility

nslookup utility

ntohs library function

Open Systems Interconnect (OSI)

PF_INET

PF_LOCAL

PF_UNIX

protocol

protocol family

recv system call

recvfrom system call

recvmsg system call

registered ports

reliable connection

select system call

send system call

sendmsg system call

sendto system call

servent structure

services file

setservent library function

SNA

SOCK_DGRAM

SOCK_RAW

SOCK_SEQPACKET

SOCK_STREAM

sockaddr structure

sockaddr_in structure

sockaddr_un structure

socket interface

socket system call

socketpair system call

stream socket

sysctl utility

TCP/IP

timeval structure

Transport Level Interface (TLI)

UDP

UNIX domain

unreliable connection

UUCP

well-known ports

X/Open Transport Interface (XTI)

XNS