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/*-
* Free/Libre Near Field Communication (NFC) library
*
* Libnfc historical contributors:
* Copyright (C) 2017 Philippe Teuwen
* See AUTHORS file for a more comprehensive list of contributors.
* Additional contributors of this file:
*
* 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-barcode.c
* @brief Reads a NFC Barcode tag
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif // HAVE_CONFIG_H
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <nfc/nfc.h>
#include "nfc-utils.h"
#define MAX_FRAME_LEN 264
static nfc_device *pnd;
bool verbose = false;
static void
print_usage(char *argv[])
{
printf("Usage: %s [OPTIONS]\n", argv[0]);
printf("Options:\n");
printf("\t-h\tHelp. Print this message.\n");
printf("\t-q\tVerbose mode.\n");
}
static bool
decode_barcode(uint8_t *pbtBarcode, const size_t szBarcode)
{
if (verbose) {
printf("Manufacturer ID field: %02X\n", pbtBarcode[0]);
switch (pbtBarcode[0]) {
case 0xb7:
printf("Manufacturer: Thinfilm\n");
break;
default:
printf("Manufacturer: unknown\n");
break;
}
}
if (verbose) {
printf("Data Format Field: %02X\n", pbtBarcode[1]);
}
switch (pbtBarcode[1]) {
case 0:
printf("Data Format Field: Reserved for allocation by tag manufacturer\n");
return false;
break;
case 1:
case 2:
case 3:
case 4:
switch (pbtBarcode[1]) {
case 1:
printf("http://www.");
break;
case 2:
printf("https://www.");
break;
case 3:
printf("http://");
break;
case 4:
printf("https://");
break;
}
for (uint8_t i = 2; i < 15; i++) {
if ((pbtBarcode[i] == 0xfe) || (i == 14)) {
pbtBarcode[i] = '\n';
pbtBarcode[i + 1] = 0;
break;
}
}
printf("%s", (char *)pbtBarcode + 2);
break;
case 5:
printf("EPC: ");
for (uint8_t i = 0; i < 12; i++) {
printf("%02x", pbtBarcode[i + 2]);
}
printf("\n");
break;
default:
printf("Data Format Field: unknown (%02X)\n", pbtBarcode[1]);
printf("Data:");
for (uint8_t i = 2; i < szBarcode - 2; i++) {
printf("%02x", pbtBarcode[i]);
}
printf("\n");
break;
}
return true;
}
int
main(int argc, char *argv[])
{
int arg;
// Get commandline options
for (arg = 1; arg < argc; arg++) {
if (0 == strcmp(argv[arg], "-h")) {
print_usage(argv);
exit(EXIT_SUCCESS);
} else if (0 == strcmp(argv[arg], "-v")) {
verbose = true;
} else {
ERR("%s is not supported option.", argv[arg]);
print_usage(argv);
exit(EXIT_FAILURE);
}
}
nfc_context *context;
nfc_init(&context);
if (context == NULL) {
ERR("Unable to init libnfc (malloc)");
exit(EXIT_FAILURE);
}
// Try to open the NFC reader
pnd = nfc_open(context, NULL);
if (pnd == NULL) {
ERR("Error opening NFC reader");
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Initialise NFC device as "initiator"
if (nfc_initiator_init(pnd) < 0) {
nfc_perror(pnd, "nfc_initiator_init");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
printf("NFC reader: %s opened\n\n", nfc_device_get_name(pnd));
nfc_modulation nm;
nm.nmt = NMT_BARCODE;
nm.nbr = NBR_106;
nfc_target ant[1];
// List NFC Barcode targets
if ((nfc_initiator_list_passive_targets(pnd, nm, ant, 1)) == 1) {
if (verbose) {
for (uint8_t i = 0; i < (&ant[0])->nti.nti.szDataLen; i++) {
printf("%02x", (&ant[0])->nti.nti.abtData[i]);
}
printf("\n");
}
decode_barcode((&ant[0])->nti.nti.abtData, (&ant[0])->nti.nti.szDataLen);
}
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_SUCCESS);
}
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