yperr_string
const char *yperr_string(int incode);
"can't get NIS server name: %s", yperr_string(r));
ypclnt_error(ypc, __func__, "%s", yperr_string(r));
inmap, yperr_string(r));
inkey, inmap, yperr_string(r));
warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND));
yperr_string(ypbr.ypbind_status));
map, yperr_string(r));
ypml->map, yperr_string(r));
domain, yperr_string(r));
yperr_string(rval));
yperr_string(rval));
inmap, yperr_string(r));
yppush_mapname, yperr_string(yp_errno),
warnx("can't yp_bind, reason: %s", yperr_string(YPERR_YPBIND));