RESPONSECODE
IFDHCloseChannel (DWORD Lun)
{
RESPONSECODE r = vicc_eject();
if (vicc_exit() < 0) {
Log1(PCSC_LOG_ERROR, "Could not close connection to virtual ICC");
return IFD_COMMUNICATION_ERROR;
}
return r;
}
int vicc_exit(struct vicc_ctx *ctx)
{
int r = vicc_eject(ctx);
if (ctx) {
free_lock(ctx->io_lock);
free(ctx->hostname);
if (ctx->server_sock > 0) {
ctx->server_sock = close(ctx->server_sock);
if (ctx->server_sock < 0) {
r -= 1;
}
}
#ifdef _WIN32
WSACleanup();
#endif
}
return r;
}
ssize_t vicc_transmit(struct vicc_ctx *ctx,
size_t apdu_len, const unsigned char *apdu,
unsigned char **rapdu)
{
ssize_t r = -1;
if (ctx && lock(ctx->io_lock)) {
r = sendToVICC(ctx, apdu_len, apdu);
if (r > 0)
r = recvFromVICC(ctx, rapdu);
unlock(ctx->io_lock);
}
if (r <= 0)
vicc_eject(ctx);
return r;
}
static ssize_t sendToVICC(struct vicc_ctx *ctx, size_t length, const unsigned char* buffer)
{
ssize_t r;
uint16_t size;
if (!ctx || length > 0xFFFF) {
errno = EINVAL;
return -1;
}
/* send size of message on 2 bytes */
size = htons((uint16_t) length);
r = sendall(ctx->client_sock, (void *) &size, sizeof size);
if (r == sizeof size)
/* send message */
r = sendall(ctx->client_sock, buffer, length);
if (r < 0)
vicc_eject(ctx);
return r;
}
