Nsysnet.rpl

nsysnet.rpl is the library that provides Berkeley sockets (BSD sockets) related functions. You can find more information about it on Wikipedia

Functions

Base

Name	Prototype	Description	Returns
SOInit	int SOInit(void);	Initializes the library.	SO_*
SOFinish	int SOFinish(void);	Cleans up after the library.	SO_*

Networking

These are also available under their standard BSD names (connect(), recv(), send(), etc.), without the SO* prefix.

Name	Prototype	Description	Returns
SOConnect	int SOConnect(int fd, struct sockaddr *addr, int addrlen);	Connects to the defined target	SO_*
SOListen	int SOListen(int fd, int backlog);	Listens for connections	SO_*
SOAccept	int SOAccept(int fd, struct sockaddr *addr, int *addrlen);	Initializes/Accepts connection requests from listing	A new socket descriptor???
SORecv	int SORecv(int fd, void *buffer, int len, int flags);	Receive data from a remote socket	SO_*
SORecvFrom	int SORecvFrom(int fd, void *buffer, int len, int flags, struct sockaddr *from, int *fromlen);	Same as SORecv but with target specified	SO_*
SOSend	int SOSend(int fd, const void *buffer, int len, int flags);	Send data to remote socket	SO_*
SOSendTo	int SOSendTo(int fd, const void *buffer, int len, int flags, const struct sockaddr *dest_addr, int dest_len);	Same as SOSend but with target specified	SO_*

Error

Name	Prototype	Description	Returns
SOInit	int SOLastError(void);	Recives the latest error???	The latest error(SO_*)???

Structures

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;

Error Codes

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?