NS_TRYAGAIN
case NS_TRYAGAIN:
return NS_TRYAGAIN;
return NS_TRYAGAIN;
return NS_TRYAGAIN;
(NS_UNAVAIL|NS_NOTFOUND|NS_TRYAGAIN)) &&
if (dbt->srclist[i].flags & NS_TRYAGAIN)
| TRYAGAIN { $$ = NS_TRYAGAIN; }