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scd: Use SCardStatus for pcsc_get_status.

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* scd/apdu.c (pcsc_get_status): Use SCardStatus.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2021-05-13 12:12:33 +09:00
parent 9995ba51b2
commit ccfb5e0a7d
1 changed files with 9 additions and 53 deletions
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62
scd/apdu.c
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@ -689,69 +689,25 @@ static int
pcsc_get_status (int slot, unsigned int *status, int on_wire)
{
long err;
struct pcsc_readerstate_s rdrstates[1];
pcsc_dword_t card_state, card_protocol;
(void)on_wire;
memset (rdrstates, 0, sizeof *rdrstates);
rdrstates[0].reader = reader_table[slot].rdrname;
rdrstates[0].current_state = reader_table[slot].pcsc.current_state;
err = pcsc_get_status_change (pcsc.context, 0, rdrstates, 1);
if (err == PCSC_E_TIMEOUT)
err = 0; /* Timeout is no error here. */
err = pcsc_status (reader_table[slot].pcsc.card, NULL, NULL,
&card_state, &card_protocol, NULL, NULL);
if (err)
{
log_error ("pcsc_get_status_change failed: %s (0x%lx)\n",
log_error ("pcsc_status failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
if ((rdrstates[0].event_state & PCSC_STATE_CHANGED))
reader_table[slot].pcsc.current_state =
(rdrstates[0].event_state & ~PCSC_STATE_CHANGED);
if (DBG_READER)
log_debug
("pcsc_get_status_change: %s%s%s%s%s%s%s%s%s%s\n",
(rdrstates[0].event_state & PCSC_STATE_IGNORE)? " ignore":"",
(rdrstates[0].event_state & PCSC_STATE_CHANGED)? " changed":"",
(rdrstates[0].event_state & PCSC_STATE_UNKNOWN)? " unknown":"",
(rdrstates[0].event_state & PCSC_STATE_UNAVAILABLE)?" unavail":"",
(rdrstates[0].event_state & PCSC_STATE_EMPTY)? " empty":"",
(rdrstates[0].event_state & PCSC_STATE_PRESENT)? " present":"",
(rdrstates[0].event_state & PCSC_STATE_ATRMATCH)? " atr":"",
(rdrstates[0].event_state & PCSC_STATE_EXCLUSIVE)? " excl":"",
(rdrstates[0].event_state & PCSC_STATE_INUSE)? " inuse":"",
(rdrstates[0].event_state & PCSC_STATE_MUTE)? " mute":"" );
*status = 0;
if ( (reader_table[slot].pcsc.current_state & PCSC_STATE_PRESENT) )
{
*status |= APDU_CARD_PRESENT;
if ( !(reader_table[slot].pcsc.current_state & PCSC_STATE_MUTE) )
*status |= APDU_CARD_ACTIVE;
}
#ifndef HAVE_W32_SYSTEM
/* We indicate a useful card if it is not in use by another
application. This is because we only use exclusive access
mode. */
if ( (*status & (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
== (APDU_CARD_PRESENT|APDU_CARD_ACTIVE)
&& (opt.pcsc_shared
|| !(reader_table[slot].pcsc.current_state & PCSC_STATE_INUSE)))
*status |= APDU_CARD_USABLE;
#else
/* Some winscard drivers may set EXCLUSIVE and INUSE at the same
time when we are the only user (SCM SCR335) under Windows. */
if ((*status & (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
== (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
*status |= APDU_CARD_USABLE;
#endif
if ((card_state & PCSC_PRESENT))
*status |= APDU_CARD_PRESENT;
if (card_state & PCSC_POWERED)
*status |= (APDU_CARD_ACTIVE | APDU_CARD_USABLE);
if (!on_wire && (rdrstates[0].event_state & PCSC_STATE_CHANGED))
/* Event like sleep/resume occurs, which requires RESET. */
return SW_HOST_NO_READER;
else
return 0;
return 0;
}