libnfc/examples/nfc-dep-initiator.c

94 lines
2.9 KiB
C

/*-
* Public platform independent Near Field Communication (NFC) library examples
*
* Copyright (C) 2009, Roel Verdult
* Copyright (C) 2010, Romuald Conty
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2 )Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Note that this license only applies on the examples, NFC library itself is under LGPL
*
*/
/**
* @file nfc-dep-initiator.c
* @brief Turns the NFC device into a D.E.P. initiator (see NFCIP-1)
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif // HAVE_CONFIG_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <nfc/nfc.h>
#include "nfc-utils.h"
#define MAX_FRAME_LEN 264
int
main (int argc, const char *argv[])
{
nfc_device_t *pnd;
nfc_target_t nt;
byte_t abtRx[MAX_FRAME_LEN];
size_t szRx = sizeof(abtRx);
byte_t abtTx[] = "Hello World!";
if (argc > 1) {
printf ("Usage: %s\n", argv[0]);
return EXIT_FAILURE;
}
pnd = nfc_connect (NULL);
if (!pnd) {
printf("Unable to connect to NFC device.\n");
return EXIT_FAILURE;
}
printf ("Connected to NFC device: %s\n", pnd->acName);
if (!nfc_initiator_init (pnd)) {
nfc_perror(pnd, "nfc_initiator_init");
return EXIT_FAILURE;
}
if(!nfc_initiator_select_dep_target (pnd, NDM_PASSIVE, NBR_212, NULL, &nt)) {
nfc_perror(pnd, "nfc_initiator_select_dep_target");
return EXIT_FAILURE;
}
print_nfc_target (nt, false);
printf ("Sending: %s\n", abtTx);
if (!nfc_initiator_transceive_bytes (pnd, abtTx, sizeof(abtTx), abtRx, &szRx)) {
nfc_perror(pnd, "nfc_initiator_transceive_bytes");
return EXIT_FAILURE;
}
abtRx[szRx] = 0;
printf ("Received: %s\n", abtRx);
nfc_initiator_deselect_target (pnd);
nfc_disconnect (pnd);
return EXIT_SUCCESS;
}