Format a buffer with a list of transport names
int svc_xprt_names(struct svc_serv * serv, char * buf, const int buflen);
serv
pointer to an RPC service
buf
pointer to a buffer to be filled in
buflen
length of buffer to be filled in
Fills in buf with a string containing a list of transport names, each name terminated with '\n'.
Returns positive length of the filled-in string on success; otherwise a negative errno value is returned if an error occurs.