static int progress_download(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
{
UNUSED(ultotal);
UNUSED(ulnow);
if (dltotal==0)
return !ui_inprogress_pulse(clientp);
return !ui_inprogress_set_fraction(clientp,dlnow/dltotal);
}
static int pcsc_connect(cardreader_t *cr, unsigned prefered_protocol)
{
DWORD attr_maxinput = 0;
DWORD attr_maxinput_len = sizeof(unsigned int);
SCARD_READERSTATE reader_state;
pcsc_data_t* pcsc = cr->extra_data;
int counter = 0;
void *progress;
memset(&reader_state,0,sizeof(reader_state));
reader_state.szReader = cr->name+7;
reader_state.dwCurrentState = SCARD_STATE_UNAWARE;
pcsc->status = SCardGetStatusChange(pcsc->hcontext,INFINITE,&reader_state,1);
if (pcsc->status != SCARD_S_SUCCESS)
{
log_printf(LOG_ERROR,"Failed to query reader status before connecting: %s (error 0x%08x).",
pcsc_stringify_error(pcsc->status),
pcsc->status );
return 0;
}
progress = ui_inprogress_new("Connection","Waiting for the reader to connect to a card.");
while ((reader_state.dwEventState & SCARD_STATE_PRESENT)==0)
{
reader_state.dwCurrentState = reader_state.dwEventState;
if (((counter++)%30)==0)
{
log_printf(LOG_INFO,"Waiting for card to be present (current state: %s)...",
pcsc_stringify_state(reader_state.dwEventState));
}
if (!ui_inprogress_pulse(progress))
{
log_printf(LOG_ERROR,"Connection aborted by user");
ui_inprogress_free(progress);
pcsc->status = 0x6FFF;
return 0;
}
pcsc->status = SCardGetStatusChange(pcsc->hcontext,100,&reader_state,1);
if ((pcsc->status!=(LONG)SCARD_S_SUCCESS) && (pcsc->status!=(LONG)SCARD_E_TIMEOUT))
{
log_printf(LOG_ERROR,"Failed to query reader status change before connecting: %s (error 0x%08x/%08x).",
pcsc_stringify_error(pcsc->status),
pcsc->status,
SCARD_E_TIMEOUT );
return 0;
}
}
ui_inprogress_free(progress);
log_printf(LOG_DEBUG,"Attempting to connect to '%s'",cr->name);
pcsc->status = SCardConnect(pcsc->hcontext,
cr->name+7,
/* SCARD_SHARE_EXCLUSIVE, */
SCARD_SHARE_SHARED,
prefered_protocol,
&(pcsc->hcard),
&(cr->protocol));
if (pcsc->status!=SCARD_S_SUCCESS)
{
log_printf(LOG_ERROR,"Connection failed: %s (error 0x%08x).",
pcsc_stringify_error(pcsc->status),
pcsc->status );
return 0;
}
if (SCardGetAttrib(pcsc->hcard,SCARD_ATTR_MAXINPUT,(LPBYTE)&attr_maxinput,(LPDWORD)&attr_maxinput_len)==SCARD_S_SUCCESS)
log_printf(LOG_INFO,"Reader maximum input length is %u bytes",attr_maxinput);
else
log_printf(LOG_DEBUG,"Could not determinate reader maximum input length");
log_printf(LOG_INFO,"Connection successful, protocol is %s",pcsc_stringify_protocol(cr->protocol));
cr->connected=1;
return 1;
}