rpc_localaddr (9)

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

clnt

RPC client structure

buf

target buffer

buflen

size of target buffer, in bytes

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.

multiple calls in succession may give different results, depending on how local networking configuration changes over time.