TCP/IP Tutorial and Technical Overview - IBM Redbooks

Definition of fields:
sockfd This is the socket on which the application is to listen. This is
the value obtained previously from the socket function.
queuesize This is the number of inbound requests that can be queued
by the system at any single time.
Note: The listen() function is typically invoked by server applications.
The function is called to await inbound connections from clients.
► Accept an inbound connection
Format:
accept(sockfd, remoteaddress, addresslength)
Definition of fields:
sockfd This is the socket on which the connection is to be accepted.
This is the value obtained previously from the socket
function.
remoteaddress This is the remote socket address structure from which the
connection was initiated.
addresslength This is the length of the socket address structure.
Note: The accept() function is typically invoked by server applications to
accept connections from clients. The remote address is a place holder in
which the remote address structure will be stored.
► Connect outbound to a server
Format:
connect(sockfd, remoteaddress, addresslength)
Definition of fields:
sockfd This is the socket from which the connection is to be opened.
This is the value obtained previously from the socket
function.
remoteaddress This is the remote socket address structure to which the
connection is to be opened.
addresslength This is the length of the socket address structure.
Note: The connect function is typically invoked by client applications.
412 TCP/IP Tutorial and Technical Overview