tinydtls-sys 0.2.0+tinydtls-9d6cf54

Raw bindings to the TinyDTLS library.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

/*******************************************************************************
 *
 * Copyright (c) 2011, 2012, 2013, 2014, 2015 Olaf Bergmann (TZI) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompanies this distribution.
 *
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *    Olaf Bergmann  - initial API and implementation
 *    Hauke Mehrtens - memory optimization, ECC integration
 *
 *******************************************************************************/

#ifndef _DTLS_NUMERIC_H_
#define _DTLS_NUMERIC_H_

#include <stdint.h>

#ifndef min
#define min(A,B) ((A) <= (B) ? (A) : (B))
#endif

#ifndef max
#define max(A,B) ((A) < (B) ? (B) : (A))
#endif

/* this one is for consistency... */
static inline int dtls_int_to_uint8(unsigned char *field, uint8_t value)
{
  field[0] = value & 0xff;
  return 1;
}

static inline int dtls_int_to_uint16(unsigned char *field, uint16_t value)
{
  field[0] = (value >> 8) & 0xff;
  field[1] = value & 0xff;
  return 2;
}

static inline int dtls_int_to_uint24(unsigned char *field, uint32_t value)
{
  field[0] = (value >> 16) & 0xff;
  field[1] = (value >> 8) & 0xff;
  field[2] = value & 0xff;
  return 3;
}

static inline int dtls_int_to_uint32(unsigned char *field, uint32_t value)
{
  field[0] = (value >> 24) & 0xff;
  field[1] = (value >> 16) & 0xff;
  field[2] = (value >> 8) & 0xff;
  field[3] = value & 0xff;
  return 4;
}

static inline int dtls_int_to_uint48(unsigned char *field, uint64_t value)
{
  field[0] = (value >> 40) & 0xff;
  field[1] = (value >> 32) & 0xff;
  field[2] = (value >> 24) & 0xff;
  field[3] = (value >> 16) & 0xff;
  field[4] = (value >> 8) & 0xff;
  field[5] = value & 0xff;
  return 6;
}

static inline int dtls_int_to_uint64(unsigned char *field, uint64_t value)
{
  field[0] = (value >> 56) & 0xff;
  field[1] = (value >> 48) & 0xff;
  field[2] = (value >> 40) & 0xff;
  field[3] = (value >> 32) & 0xff;
  field[4] = (value >> 24) & 0xff;
  field[5] = (value >> 16) & 0xff;
  field[6] = (value >> 8) & 0xff;
  field[7] = value & 0xff;
  return 8;
}

static inline uint8_t dtls_uint8_to_int(const unsigned char *field)
{
  return (uint8_t)field[0];
}

static inline uint16_t dtls_uint16_to_int(const unsigned char *field)
{
  return ((uint16_t)field[0] << 8)
	 | (uint16_t)field[1];
}

static inline uint32_t dtls_uint24_to_int(const unsigned char *field)
{
  return ((uint32_t)field[0] << 16)
	 | ((uint32_t)field[1] << 8)
	 | (uint32_t)field[2];
}

static inline uint32_t dtls_uint32_to_int(const unsigned char *field)
{
  return ((uint32_t)field[0] << 24)
	 | ((uint32_t)field[1] << 16)
	 | ((uint32_t)field[2] << 8)
	 | (uint32_t)field[3];
}

static inline uint64_t dtls_uint48_to_int(const unsigned char *field)
{
  return ((uint64_t)field[0] << 40)
	 | ((uint64_t)field[1] << 32)
	 | ((uint64_t)field[2] << 24)
	 | ((uint64_t)field[3] << 16)
	 | ((uint64_t)field[4] << 8)
	 | (uint64_t)field[5];
}

static inline uint64_t dtls_uint64_to_int(const unsigned char *field)
{
  return ((uint64_t)field[0] << 56)
	 | ((uint64_t)field[1] << 48)
	 | ((uint64_t)field[2] << 40)
	 | ((uint64_t)field[3] << 32)
	 | ((uint64_t)field[4] << 24)
	 | ((uint64_t)field[5] << 16)
	 | ((uint64_t)field[6] << 8)
	 | (uint64_t)field[7];
}

#endif /* _DTLS_NUMERIC_H_ */