libnfc/libnfc/nfc-emulation.c
2011-03-30 09:39:08 +00:00

56 lines
1.6 KiB
C

/*-
* Public platform independent Near Field Communication (NFC) library
*
* Copyright (C) 2011, Romuald Conty, Romain Tartière
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file nfc-emulate.c
* @brief Provide a small API to ease emulation in libnfc
*/
#include <nfc/nfc.h>
#include <nfc/nfc-emulation.h>
#include "iso7816.h"
int
nfc_emulate_target (nfc_device_t* pnd, struct nfc_emulator *emulator)
{
byte_t abtRx[ISO7816_SHORT_R_APDU_MAX_LEN];
size_t szRx = sizeof(abtRx);
byte_t abtTx[ISO7816_SHORT_C_APDU_MAX_LEN];
int res = 0;
if (!nfc_target_init (pnd, emulator->target, abtRx, &szRx)) {
return -1;
}
while (res >= 0) {
res = emulator->state_machine->io (emulator, abtRx, szRx, abtTx, sizeof (abtTx));
if (res > 0) {
if (!nfc_target_send_bytes(pnd, abtTx, res)) {
return -1;
}
}
if (res >= 0) {
if (!nfc_target_receive_bytes(pnd, abtRx, &szRx)) {
return -1;
}
}
}
return 0;
}