Using Getsockopt/WSPGetSockOpt

Platform SDK: Windows Sockets

Using Getsockopt/WSPGetSockOpt

The SO_LINKINFO socket option returns a LINKINFO_DN structure containing the current state of the specified DECnet logical link.

int WSPAPI WSPGetSockOpt(
  SOCKET s, 
  int level, 
  int optname, 
  char FAR * optval, 
  int far * optlen, 
  int FAR * lpErrno
);

Parameter	Description
s	Descriptor identifying socket
level	DNPROTO_NSP
optname	SO_LINKINFO
optval	FAR * LINKINFO_DN structure
optlen	Sizeof(LINKINFO_DN)
lpErrno	Pointer to error code

Return Values

If no error occurs, WSPGetSockOpt returns zero and the LINKINFO_DN structure pointed to by optval contains the current transport segment size and logical link state. See the LL_* manifest constants for valid link states. Otherwise, a value of SOCKET_ERROR is returned, and a specific error code is available in lpErrno.