nfssvc
int nfssvc(int, void *);
int (*Mysvc)(int, struct netbuf, struct netconfig *) = nfssvc;
if (do_all(protobp0, nfssvc) == -1) {
protobp0, nfssvc);
do_one(provider, proto, protobp0, nfssvc);
do_one(provider, NULL, protobp0, nfssvc);
static int nfssvc(int, struct netbuf, struct netconfig *);