Jan-11-06 Ecs152b Behrooz Khorashadi Socket Server Side Jan-11-06 Ecs152b Behrooz Khorashadi

Clean up Struct sockaddr Struct sockaddr_in Remember all this structure does is specify an address and port. Family whatever 2bytes 4 bytes 8bytes Port Int address Unused

Client Side Create Socket Connect (blocks, three way handshake) Send/Receive Close connection

Server Create socket Bind socket to port (for a client this is done automatically in connect) Listen for incoming connection Accept connection Send/Receive Close connection

Bind bind(int socket, struct sockaddr *server_address, unsinged int addresslength) Remember sockaddr is actually the sockaddr_in struct Return 0 on success and -1 on fail

Listen int listen(int socket, int queue_limit) Home many people can try and connect at a given time. Same as bind 0 on success -1 on fail

Accept int accept(int socket, struct sockaddr *clientaddr, unsigned int *addresslength) Creates a socket for you and doesn’t do anything to your listening socket. Puts relevant information into clientaddr and addresslength Success returns the socket descriptor of new socket, on fail return -1

Close Yeah sorry forgot

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