dirmngr: Do not block during ADNS calls.
* dirmngr/dns-stuff.c: Include npth.h (my_unprotect, my_protect): New wrapper. (resolve_name_adns): Put unprotect/protect around adns calls. (get_dns_cert): Ditto. (getsrv): Ditto. (get_dns_cname): Ditto.
- Signed-off-by: Werner Koch <wk@gnupg.org>