Nsysnet.rpl

nsysnet.rpl is the library that provides Berkeley sockets (BSD sockets), network configuration, and SSL functions.

Functions

Many of these socket functions are standard BSD ones (connect(), recv(), send(), etc.). You can find more information about BSD sockets on Wikipedia.

Name	Prototype	Description	Returns
socket_lib_init	`int socket_lib_init(void);`	Initialize the library	SO_*
socket_lib_finish	`int socket_lib_init(void);`	Clean up after the library	SO_*
connect	`int connect(int fd, struct sockaddr *addr, int addrlen);`	Connect to the specified host	SO_*
listen	`int listen(int fd, int backlog);`	Listen for connections	SO_*
accept	`int accept(int fd, struct sockaddr addr, int addrlen);`	Accept connection requests from listening	A new socket descriptor
recv	`int recv(int fd, void *buffer, int len, int flags);`	Receive data over a socket	SO_*
recvfrom	`int recvfrom(int fd, void buffer, int len, int flags, struct sockaddr from, int *fromlen);`	Same as recv() but with target specified	SO_*
send	`int send(int fd, const void *buffer, int len, int flags);`	Send data over a socket	SO_*
sendto	`int sendto(int fd, const void buffer, int len, int flags, const struct sockaddr dest_addr, int dest_len);`	Same as send() but with target specified	SO_*
socklasterr	`int socklasterr(void);`	Return the most recently recorded socket error code	The latest error(SO_*)

Name	Data
sockaddr_in	typedef struct { u16 sin_family; u16 sin_port; struct in_addr sin_addr; char sin_zero[8]; } sockaddr_in;
sockaddr_in	typedef struct { u32 s_addr; } in_addr;

The error codes that SO functions can return. if the error code starts with "SO_E" so were the operation not successful otherwise it were.

Name	Value	Description
SO_SUCCESS	0	The operation were successful
SO_ETIMEDOUT	2	The connection timed out
SO_ECONNREFUSED	7	The connection were refused
SO_ERROR	41	The operation hit a generic error and were not successful
SO_ELIBNOTREADY	43	The library is not ready, did you forget to initialize it?