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scd: Fix status check when using PC/SC.

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* 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
dwCurrentState field.

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 <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2018-03-08 16:51:51 +09:00
parent 334b948981
commit f8b8b6aac2
2 changed files with 14 additions and 3 deletions
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2
scd/scdaemon.c
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@ -1348,6 +1348,8 @@ handle_connections (int listen_fd)
FD_SET (pipe_fd[0], &read_fdset);
if (max_fd < pipe_fd[0])
max_fd = pipe_fd[0];
#else
(void)max_fd;
#endif
#ifndef HAVE_W32_SYSTEM