yp_master
int yp_master(char *, char *, char **);
if (yp_master(domain, "passwd.byname", &server))
if ((rval = yp_master(domain, map, &master)))
r = yp_master(ypclnt->domain, ypclnt->map, &ypclnt->server);
if ((res = yp_master(domain, map, &master))) {
if (yp_master(domain, PKMAP, &master) != 0)
r = yp_master(domnam, map, &master);
r = yp_master(domnam, ypml->ypml_name, &master);
r = yp_master(domainname, inmap, &master);