Programming and posix - April 2002

April 3, 2002
Solution Symposium
Page 53
hp e3000
programming
and posix
sockets
• InterProcess communciation via socket address:
• Internet (32-bit IPv4 address, port number)
• Unix (local file name)
• Functions
• socket() - create socket descriptor
• connect() - connect to a remote socket
• bind() - to use specific listening socket (i.e. port 80)
• listen() - establish queue for incoming TCP conns
• accept() - wait for a new TCP connection
• read()/recv(), write()/send() - data transmission
• close() - close a socket