Question

I am writing a java smart card application in windows MFC. How do i find the drive name( name display in “My Computer”) of the connected smart card. For eg. once i connect the smart card(even though it a smart card, it will work as memory card ) it will come as “** Removable Disk(F:)**” . I am able to connect to smart card using SCardConnect function. from the handle return from SCardConnect function, can i get the drive name .

Or is there any way to find out whether a particular drive is smart card. ie. we can easily find out the removable disks in the machine and from that is it possible to find out whether its a smart card or not.

Thanks in advance

Answer 1

I have written code to enumerate SmartCard devices, in C; here is the code I use;

Cheers,
Con

int findDevice(){
hContext = NULL;

log("\nSearching for the following device: XXX eKrypto Pinpad\n");

//Get a context to the resource manager 
lReturn = SCardEstablishContext(SCARD_SCOPE_USER,NULL,NULL,&hContext);
log("Context established.\n");
if(lReturn != SCARD_S_SUCCESS){
  logBytes("SCardEstablishContext failed with error: ", (byte *)&lReturn, sizeof(LONG));
  return 0;
}

contextEstablished = true;

//Get the readers list
DWORD chReaders = 250;
lReturn = SCardListReaders(hContext,NULL,readerNames,&chReaders);
log("Reader List obtained.\n");
if(lReturn != SCARD_S_SUCCESS){
    logBytes("  SCardListReaders failed with error: \n", (byte *)&lReturn, sizeof(LONG));
    return 0;
}

//Search for device
char *pReaders = readerNames;
log(pReaders);
while(strlen(pReaders) != 0 && deviceFound == false){
    if(!memcmp(pReaders, "ETS eKrypto Pinpad", 18)){
        deviceFound = true;
        memcpy(currentReader, pReaders, strlen(pReaders));
    }
    pReaders += strlen (pReaders)+1;
}
if(deviceFound == false){
    log("  Specified ETS device not found\n");
    return 0;
}

log("  Successful\n");
return 1;
}