rpc_localaddr(9) centos man page | unix.com

RPC_LOCALADDR(9)						 Linux Networking						  RPC_LOCALADDR(9)

NAME
       rpc_localaddr - discover local endpoint address for an RPC client

SYNOPSIS
       int rpc_localaddr(struct rpc_clnt * clnt, struct sockaddr * buf, size_t buflen);

ARGUMENTS
       clnt
	   RPC client structure

       buf
	   target buffer

       buflen
	   size of target buffer, in bytes

DESCRIPTION
       Returns zero and fills in "buf" and "buflen" if successful; otherwise, a negative errno is returned.

       This works even if the underlying transport is not currently connected, or if the upper layer never previously provided a source address.

THE RESULT OF THIS FUNCTION CALL IS TRANSIENT
       multiple calls in succession may give different results, depending on how local networking configuration changes over time.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  RPC_LOCALADDR(9)