HP Rp7410 BSD Sockets Interface Programmer's Guide - Page 191

Glossary Socket: Addressable entities that are at either end of an Interprocess Communication connection. A socket is identified by a socket descriptor. A program can write data to and read data from a socket, just as it writes and reads data to and from files. Socket address: The internet address, port address and address family of a socket. The port and internet address combination allows the network to locate a socket. Socket descriptor: An HP-UX file descriptor accessed for reading, writing or any standard file system calls after an Interprocess Communication connection is established. All Interprocess Communication system calls use socket descriptors as arguments. Stream socket: A socket that, when connected to another stream socket, passes data as a byte stream (with no record boundaries). Data is guaranteed to arrive in the sequence sent. Stream sockets use the TCP protocol. TCP: See Transmission Control Protocol. Telnet: A virtual terminal protocol traditionally used on ARPA networks that allows a user to log into a remote host. The telnet command uses the Telnet protocol. Transmission Control Protocol: A protocol that provides the underlying communication support for AF_INET stream sockets. TCP is used to implement reliable, sequenced, flow-controlled twoway communication based on a stream of bytes similar to pipes. UDP: See User Datagram Protocol. UNIX Domain Address: A character string containing the UNIX pathname to a UNIX Domain socket. UNIX Domain Protocol: A protocol providing fast communication between Glossary 191