scd: Fix status check when using PC/SC.
* scd/apdu.c (struct reader_table_s): Add field of current_state. (new_reader_slot): Initialize current_state. (pcsc_get_status): Keep the status in READER_TABLE array. Return SW_HOST_NO_READER when PCSC_STATE_CHANGED. * scd/scdaemon.c (handle_connections): Silence a warning.
To detect some change of card status, including suspend/resume
possibly, SCardGetStatusChange should be used keeping the
This change could improve situation for suspend/resume with Yubikey on
Windows. Even not, this is doing the Right Thing.
- Signed-off-by: NIIBE Yutaka <email@example.com>