* sm/server.c (option_handler): Add "offline".
(cmd_getinfo): Ditto.
* sm/certchain.c (is_cert_still_valid):
(do_validate_chain):
* sm/gpgsm.c (gpgsm_init_default_ctrl): Default "offline" to the value
of --disable-dirmngr.
* sm/call-dirmngr.c (start_dirmngr_ext): Better also check for
ctrl->offline.