Elementary Socket Calls

• int socket (int family, int type, int protocol);

  • open a socket (specifying the type of protocol)

• int bind (int sockfd, struct sockaddr *myaddr, int addrlen);

  • assigns a name (local address) to the socket

• int connect (int sockfd, struct sockaddr *servaddr, int addrlen);

  • client establishes connection with a server

• int listen (int sockfd, int backlog);

  • server indicates it is willing to receive connections

• int send (int sockfd, char * buff, int nbytes, int flags);

  • send message to other end of connection (TCP)

• int sendto (int sockfd, char *buff, int bytes, int flags, struct sockaddr *to, int addrlen);

  • send message to the specified receiver

Previous slide

Next slide

Back to first slide

View graphic version