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Allow keep trying if SCard service is unavailable

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This commit is contained in:
Martin Endler
2017-01-26 19:10:48 +01:00
parent 848da7b1f1
commit 11f939ff32
2 changed files with 20 additions and 8 deletions
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7
lib/pcsclite.js
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@@ -10,6 +10,8 @@ inherits(CardReader, EventEmitter);
function parseReadersString(buffer) { function parseReadersString(buffer) {
try {
const string = buffer.toString().slice(0, -1); const string = buffer.toString().slice(0, -1);
// it looks like // it looks like
@@ -22,6 +24,11 @@ function parseReadersString(buffer) {
return string.split('\u0000').slice(0, -1); return string.split('\u0000').slice(0, -1);
}
catch (e) {
return [];
}
} }
/* /*

5
src/pcsclite.cpp
View File

@@ -287,6 +287,11 @@ LONG PCSCLite::get_card_readers(PCSCLite* pcsclite, AsyncResult* async_result) {
result = get_card_readers(pcsclite, async_result); result = get_card_readers(pcsclite, async_result);
} }
#endif #endif
if (result == SCARD_E_NO_SERVICE || result == SCARD_E_SERVICE_STOPPED) {
SCardReleaseContext(pcsclite->m_card_context);
SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &pcsclite->m_card_context);
result = get_card_readers(pcsclite, async_result);
}
} else { } else {
/* Store the readers_name in the baton */ /* Store the readers_name in the baton */
async_result->readers_name = readers_name; async_result->readers_name = readers_name;