libnfc  1.8.0
nfc-utils.h
Go to the documentation of this file.
1 /*-
2  * Free/Libre Near Field Communication (NFC) library
3  *
4  * Libnfc historical contributors:
5  * Copyright (C) 2009 Roel Verdult
6  * Copyright (C) 2009-2013 Romuald Conty
7  * Copyright (C) 2010-2012 Romain Tartière
8  * Copyright (C) 2010-2013 Philippe Teuwen
9  * Copyright (C) 2012-2013 Ludovic Rousseau
10  * See AUTHORS file for a more comprehensive list of contributors.
11  * Additional contributors of this file:
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions are met:
15  * 1) Redistributions of source code must retain the above copyright notice,
16  * this list of conditions and the following disclaimer.
17  * 2 )Redistributions in binary form must reproduce the above copyright
18  * notice, this list of conditions and the following disclaimer in the
19  * documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  *
33  * Note that this license only applies on the examples, NFC library itself is under LGPL
34  *
35  */
36 
42 #ifndef _EXAMPLES_NFC_UTILS_H_
43 # define _EXAMPLES_NFC_UTILS_H_
44 
45 # include <stdlib.h>
46 # include <string.h>
47 # include <err.h>
48 
53 #ifdef DEBUG
54 # define DBG(...) do { \
55  warnx ("DBG %s:%d", __FILE__, __LINE__); \
56  warnx (" " __VA_ARGS__ ); \
57  } while (0)
58 #else
59 # define DBG(...) {}
60 #endif
61 
66 #ifdef DEBUG
67 # define WARN(...) do { \
68  warnx ("WARNING %s:%d", __FILE__, __LINE__); \
69  warnx (" " __VA_ARGS__ ); \
70  } while (0)
71 #else
72 # define WARN(...) warnx ("WARNING: " __VA_ARGS__ )
73 #endif
74 
79 #ifdef DEBUG
80 # define ERR(...) do { \
81  warnx ("ERROR %s:%d", __FILE__, __LINE__); \
82  warnx (" " __VA_ARGS__ ); \
83  } while (0)
84 #else
85 # define ERR(...) warnx ("ERROR: " __VA_ARGS__ )
86 #endif
87 
88 #ifndef MIN
89 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
90 #endif
91 #ifndef MAX
92 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
93 #endif
94 
95 uint8_t oddparity(const uint8_t bt);
96 void oddparity_bytes_ts(const uint8_t *pbtData, const size_t szLen, uint8_t *pbtPar);
97 
98 void print_hex(const uint8_t *pbtData, const size_t szLen);
99 void print_hex_bits(const uint8_t *pbtData, const size_t szBits);
100 void print_hex_par(const uint8_t *pbtData, const size_t szBits, const uint8_t *pbtDataPar);
101 
102 void print_nfc_target(const nfc_target *pnt, bool verbose);
103 
104 #endif
NFC target structure.
Definition: nfc-types.h:351