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open Functoria.DSL
open Functoria.Action
open Misc
open Stack
type resolver = Resolver
let resolver = typ Resolver
let resolver_unix_system =
let packages_v =
Key.(if_ is_unix)
[ Conduit.pkg; package ~min:"8.0.0" ~max:"9.0.0" "conduit-lwt-unix" ]
[]
in
let configure i =
match get_target i with
| `Unix | `MacOSX -> ok ()
| _ -> error "Unix resolver not supported on non-UNIX targets."
in
let connect _ _modname _ =
code ~pos:__POS__ "Lwt.return Resolver_lwt_unix.system"
in
impl ~packages_v ~configure ~connect "Resolver_lwt" resolver
let resolver_dns_conf ~ns =
let packages = [ Conduit.pkg ] in
let runtime_args = Runtime_arg.[ v ns ] in
let connect _ modname = function
| [ stack; ns ] ->
code ~pos:__POS__
"let nameservers = %s in@;\
%s.v ?nameservers %s >|= function@;\
| Ok r -> r@;\
| Error (`Msg e) -> invalid_arg e@;"
ns modname stack
| _ -> connect_err "resolver" 2
in
impl ~packages ~runtime_args ~connect "Resolver_mirage.Make"
(stackv4v6 @-> resolver)
let resolver_dns ?ns stack =
let ns = Runtime_arg.resolver ?default:ns () in
resolver_dns_conf ~ns $ stack