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nfc-utils.h
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/*-
* Free/Libre Near Field Communication (NFC) library
*
* Libnfc historical contributors:
* Copyright (C) 2009 Roel Verdult
* Copyright (C) 2009-2013 Romuald Conty
* Copyright (C) 2010-2012 Romain Tartière
* Copyright (C) 2010-2013 Philippe Teuwen
* Copyright (C) 2012-2013 Ludovic Rousseau
* 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-utils.h
* @brief Provide some examples shared functions like print, parity calculation, options parsing.
*/
#ifndef _EXAMPLES_NFC_UTILS_H_
# define _EXAMPLES_NFC_UTILS_H_
# include <stdlib.h>
# include <string.h>
# include <err.h>
/**
* @macro DBG
* @brief Print a message of standard output only in DEBUG mode
*/
#ifdef DEBUG
# define DBG(...) do { \
warnx ("DBG %s:%d", __FILE__, __LINE__); \
warnx (" " __VA_ARGS__ ); \
} while (0)
#else
# define DBG(...) {}
#endif
/**
* @macro WARN
* @brief Print a warn message
*/
#ifdef DEBUG
# define WARN(...) do { \
warnx ("WARNING %s:%d", __FILE__, __LINE__); \
warnx (" " __VA_ARGS__ ); \
} while (0)
#else
# define WARN(...) warnx ("WARNING: " __VA_ARGS__ )
#endif
/**
* @macro ERR
* @brief Print a error message
*/
#ifdef DEBUG
# define ERR(...) do { \
warnx ("ERROR %s:%d", __FILE__, __LINE__); \
warnx (" " __VA_ARGS__ ); \
} while (0)
#else
# define ERR(...) warnx ("ERROR: " __VA_ARGS__ )
#endif
#ifndef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
uint8_t oddparity(const uint8_t bt);
void oddparity_bytes_ts(const uint8_t *pbtData, const size_t szLen, uint8_t *pbtPar);
void print_hex(const uint8_t *pbtData, const size_t szLen);
void print_hex_bits(const uint8_t *pbtData, const size_t szBits);
void print_hex_par(const uint8_t *pbtData, const size_t szBits, const uint8_t *pbtDataPar);
void print_nfc_target(const nfc_target *pnt, bool verbose);
#endif