78ce62e7b6
NDO_AUTO_ISO14443_4 is now set to _true_ by default with nfc_target_init(); nfc_emulate_target() now fails (return _false_) when emulator->state_machine->io() failed; Initialize nfc_device_t variables to _false_ in order to send correctly (see notes in nfc-device.c); nfc_emulate_forum_tag4 prints error when nfc_emulate_target() failed.
56 lines
1.6 KiB
C
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 (res < 0) ? res : 0;
|
|
}
|