public void Dispose()
{
Disconnect();
if (this.context != IntPtr.Zero)
{
SCardAPI.SCardReleaseContext(this.context);
this.context = IntPtr.Zero;
}
}
private bool create()
{
SCardResult result = SCardAPI.SCardEstablishContext(SCardAPI.SCARD_SCOPE_USER, IntPtr.Zero, IntPtr.Zero, out this.context);
if (result != SCardResult.SCARD_S_SUCCESS)
{
this.context = IntPtr.Zero;
return(false);
}
return(true);
}
internal APDUresponse SendandResponse(byte[] apdu)
{
APDUresponse res = null;
try {
int recvSize = SCardAPI.SCardTransmit(this.handle, apdu, this.recvBuff);
res = new APDUresponse(recvBuff, recvSize);
} catch (Exception) {
} finally {
logResponse(apdu, res);
}
return(res);
}
internal bool Disconnect()
{
if (this.handle != IntPtr.Zero)
{
var result = SCardAPI.SCardDisconnect(this.handle, SCardAPI.SCARD_LEAVE_CARD);
if (result == SCardResult.SCARD_S_SUCCESS)
{
this.handle = IntPtr.Zero;
this.recvBuff = null;
return(true);
}
}
return(false);
}
public bool Connect()
{
bool ret = false;
try {
if (isLinkedReader() == false)
{
return(false);
}
uint protocol;
var result = SCardAPI.SCardConnect(this.context, this.LinkedReaderName, SCardAPI.SCARD_SHARE_SHARED, SCardAPI.SCARD_PROTOCOL_T1, out handle, out protocol);
if (result != SCardResult.SCARD_S_SUCCESS)
{
throw (new Exception("SCardConnect"));
}
this.recvBuff = new byte[1024];
ret = true;
} catch (Exception) {
}
return(ret);
}
private bool isLinkedReader()
{
bool ret = false;
try {
if (this.context == IntPtr.Zero)
{
return(false);
}
// get size
uint readerSize = 0;
var result = SCardAPI.SCardListReaders(this.context, null, null, ref readerSize);
if (result != SCardResult.SCARD_S_SUCCESS)
{
throw (new Exception("SCardListReaders"));
}
// get readerData
char[] readerData = new char[readerSize];
result = SCardAPI.SCardListReaders(this.context, null, readerData, ref readerSize);
if (result != SCardResult.SCARD_S_SUCCESS)
{
throw (new Exception("SCardListReaders"));
}
// リーダー・ライターの名称分割(\u0000で区切られている)
string[] readers = getNames(readerData);
if (readers.Count() <= 0)
{
throw (new Exception("getNames"));
}
// select target
bool find = false;
{
if (string.IsNullOrEmpty(LinkedReaderName))
{
this.LinkedReaderName = readers[0];
find = true;
}
else
{
foreach (string readerName in readers)
{
foreach (string target in targetReaderNames)
{
if (readerName.StartsWith(target, StringComparison.OrdinalIgnoreCase))
{
this.LinkedReaderName = readerName;
find = true;
break;
}
}
}
}
}
ret = find;
} catch (Exception) {
}
return(ret);
}
