enum{	S_TCP,	S_UDP}; int		so_socket(int type);void		so_connect(int, unsigned long, unsigned short);void		so_getsockname(int, unsigned long*, unsigned short*);void		so_bind(int, int, unsigned short);void		so_listen(int);int		so_send(int, void*, int, int);int		so_recv(int, void*, int, int);int		so_accept(int, unsigned long*, unsigned short*);int		so_getservbyname(char*, char*, char*);int		so_gethostbyname(char*, char**, int); char*	hostlookup(char*);