#define GSCIS_AID_CCC                 0xA0, 0x00, 0x00, 0x01, 0x16, 0xDB, 0x00

/* Maximum size of data portion of APDUs */
/** Do not set this above 250 **/
#define CACKEY_APDU_MTU               250

#ifdef CACKEY_DEBUG
#  ifdef HAVE_TIME_H
#    include <time.h>
static time_t cackey_debug_start_time = 0;
#    define CACKEY_DEBUG_PRINTTIME { if (cackey_debug_start_time == 0) { cackey_debug_start_time = time(NULL); }; fprintf(stderr, "[%lu]: ", (unsigned long) (time(NULL) - cackey_debug_start_time)); }
#  else
#    define CACKEY_DEBUG_PRINTTIME /**/
#  endif

#  define CACKEY_DEBUG_PRINTF(x...) { CACKEY_DEBUG_PRINTTIME; fprintf(stderr, "%s():%i: ", __func__, __LINE__); fprintf(stderr, x); fprintf(stderr, "\n"); fflush(stderr); }
#  define CACKEY_DEBUG_PRINTBUF(f, x, y) { unsigned char *TMPBUF; unsigned long idx; TMPBUF = (unsigned char *) (x); CACKEY_DEBUG_PRINTTIME; fprintf(stderr, "%s():%i: %s  (%s/%lu = {%02x", __func__, __LINE__, f, #x, (unsigned long) (y), TMPBUF[0]); for (idx = 1; idx < (y); idx++) { fprintf(stderr, ", %02x", TMPBUF[idx]); }; fprintf(stderr, "})\n"); fflush(stderr); }
#  define CACKEY_DEBUG_PERROR(x) { fprintf(stderr, "%s():%i: ", __func__, __LINE__); CACKEY_DEBUG_PRINTTIME; perror(x); fflush(stderr); }
#  define free(x) { CACKEY_DEBUG_PRINTF("FREE(%p) (%s)", x, #x); free(x); }

static void *CACKEY_DEBUG_FUNC_MALLOC(size_t size, const char *func, int line) {
	void *retval;

	retval = malloc(size);

	CACKEY_DEBUG_PRINTTIME;
	fprintf(stderr, "%s():%i: ", func, line);
	fprintf(stderr, "MALLOC() = %p", retval);
	fprintf(stderr, "\n");
	fflush(stderr);

	return(retval);
}

static void *CACKEY_DEBUG_FUNC_REALLOC(void *ptr, size_t size, const char *func, int line) {
	void *retval;

	retval = realloc(ptr, size);

	if (retval != ptr) {
		CACKEY_DEBUG_PRINTTIME;
		fprintf(stderr, "%s():%i: ", func, line);
		fprintf(stderr, "REALLOC(%p) = %p", ptr, retval);
		fprintf(stderr, "\n");
		fflush(stderr);
	}

	if (retval == NULL) {
		CACKEY_DEBUG_PRINTF(" *** ERROR *** realloc returned NULL (size = %lu)", (unsigned long) size);
	}

	return(retval);
}

static char *CACKEY_DEBUG_FUNC_STRDUP(const char *ptr, const char *func, int line) {
	char *retval;

	retval = strdup(ptr);

	CACKEY_DEBUG_PRINTTIME;
	fprintf(stderr, "%s():%i: ", func, line);
	fprintf(stderr, "STRDUP_MALLOC() = %p", retval);
	fprintf(stderr, "\n");
	fflush(stderr);

	return(retval);
}

		CACKEY_DEBUG_PRINTF("Connection to PC/SC failed, returning in failure");

		return(CACKEY_PCSC_E_GENERIC);
	}

	/* Connect to reader, if needed */
	if (!slot->pcsc_card_connected) {


		CACKEY_DEBUG_PRINTF("SCardConnect(%s) called", slot->pcsc_reader);
		scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &slot->pcsc_card, &protocol);

		if (scard_conn_ret == SCARD_E_PROTO_MISMATCH) {
			CACKEY_DEBUG_PRINTF("SCardConnect() returned SCARD_E_PROTO_MISMATCH, trying with just T=0")
			scard_conn_ret = SCardConnect(*cackey_pcsc_handle, slot->pcsc_reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, &slot->pcsc_card, &protocol);

		CACKEY_DEBUG_PRINTBUF("Sending APDU:", xmit_buf, xmit_len);
	}

	recv_len = sizeof(recv_buf);
	scard_xmit_ret = SCardTransmit(slot->pcsc_card, pioSendPci, xmit_buf, xmit_len, NULL, recv_buf, &recv_len);

	if (scard_xmit_ret == SCARD_E_NOT_TRANSACTED) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx), will ask calling function to retry (not resetting card)...", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		/* Begin Smartcard Transaction */
		cackey_end_transaction(slot);

		return(CACKEY_PCSC_E_RETRY);
	}

		CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

		return(CACKEY_PCSC_E_TOKENABSENT);
	}

	atr_len = sizeof(atr);
	status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);

	if (status_ret == SCARD_E_INVALID_HANDLE) {
		CACKEY_DEBUG_PRINTF("SCardStatus() returned SCARD_E_INVALID_HANDLE, marking is not already connected and trying again");
		slot->pcsc_card_connected = 0;
		slot->slot_reset = 1;
		slot->token_flags = CKF_LOGIN_REQUIRED;

		pcsc_connect_ret = cackey_connect_card(slot);
		if (pcsc_connect_ret != CACKEY_PCSC_S_OK) {
			CACKEY_DEBUG_PRINTF("Unable to connect to card, returning token absent");

			return(CACKEY_PCSC_E_TOKENABSENT);
		}

		atr_len = sizeof(atr);
		status_ret = SCardStatus(slot->pcsc_card, NULL, &reader_len, &state, &protocol, atr, &atr_len);
	}

	if (status_ret != SCARD_S_SUCCESS) {
		slot->slot_reset = 1;
		slot->token_flags = CKF_LOGIN_REQUIRED;

		if (status_ret == SCARD_W_RESET_CARD) {
			CACKEY_DEBUG_PRINTF("Reset required, please hold...");

		if (cackey_slots[slotID].label != NULL) {
			free(cackey_slots[slotID].label);
			cackey_slots[slotID].label = NULL;
		}

		cackey_slots[slotID].slot_reset = 0;
		cackey_slots[slotID].pcsc_card_connected = 0;
		cackey_slots[slotID].token_flags = CKF_LOGIN_REQUIRED;
	}

	if (cackey_sessions[hSession].identities == NULL) {
		cackey_sessions[hSession].identities = cackey_read_identities(&cackey_slots[slotID], &cackey_sessions[hSession].identities_count);
	}

AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib)

dnl Determine how to strip executables
AC_CHECK_TOOL(STRIP, strip)

dnl Check for all required headers
AC_CHECK_HEADERS(arpa/inet.h inttypes.h stdarg.h stdint.h stdio.h stdlib.h string.h sys/socket.h sys/types.h sys/un.h time.h unistd.h pthread.h zlib.h limits.h,,[
	AC_WARN([Required header missing, compilation will likely fail.])
], [
#ifdef HAVE_ARPA_INET_H
#  include <arpa/inet.h>
#endif
#ifdef HAVE_INTTYPES_H
#  include <inttypes.h>

#endif
#ifdef HAVE_SYS_UN_H
#  include <sys/un.h>
#endif
#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif
#ifdef HAVE_TIME_H
#  include <time.h>
#endif
#ifdef HAVE_PTHREAD_H
#  include <pthread.h>
#endif
#ifdef HAVE_LIMITS_H
#  include <limits.h>
#endif
#ifdef HAVE_ZLIB_H