libraries/libpcscxx
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added method control; refs #18

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Marc Wäckerlin
2012-03-14 09:54:25 +00:00
parent 72b76eb711
commit 31dc334b51
1 changed files with 18 additions and 0 deletions
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18
src/pcsc.hxx
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@@ -325,6 +325,24 @@ namespace pcsc {
return std::string((char*)buff, len); return std::string((char*)buff, len);
} }
//! Transmit control command and data to the reader.
/*!
* @note Take care: Strings may contain embedded @c 0.
*/
std::string control(unsigned long controlCode,
std::string in) {
DWORD len(256); // arbitrary
UCHAR dataBuffer[256];
PCSC_LOG("SCardControl: "<<"Command: "<<controlCode);
PCSC_LOG(" -> "<<crypto::hex(in));
check(SCardControl(_id, controlCode,
(unsigned char*)in.c_str(), in.size(),
dataBuffer, sizeof(dataBuffer), &len),
"smartcard control message sent");
PCSC_LOG(" -> "<<crypto::hex(std::string((char*)dataBuffer, len)));
return std::string((char*)dataBuffer, len);
}
//! @c false if last operation was not successful //! @c false if last operation was not successful
operator bool() const { operator bool() const {
// Values are 32 bit values layed out as follows: // Values are 32 bit values layed out as follows: