친절한 매뉴얼

☞ connect, listen, accept, getpeername, send, recv int connect(int socket, struct sockaddr *addr, socklen_t length); int listen(int socket, int n); int accept(int socket, struct sockaddr *addr, socklen_t *lenptr); int getpeername(int socket, struct sockaddr *addr, socklen_t *lenptr); ssize_t send(int socket, const void *buffer, size_t size, int flags); ssize_t recv(int socket, void *buffer, size..