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
|
/*
* Copyright (c) 2014, Peter Thorson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the WebSocket++ Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 PETER THORSON 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.
*
*/
#ifndef WEBSOCKETPP_COMMON_NETWORK_HPP
#define WEBSOCKETPP_COMMON_NETWORK_HPP
// For ntohs and htons
#if defined(_WIN32)
#include <winsock2.h>
#else
//#include <arpa/inet.h>
#include <netinet/in.h>
#endif
#include <websocketpp/common/stdint.hpp>
namespace websocketpp {
namespace lib {
namespace net {
inline bool is_little_endian() {
short int val = 0x1;
char *ptr = reinterpret_cast<char *>(&val);
return (ptr[0] == 1);
}
#define TYP_INIT 0
#define TYP_SMLE 1
#define TYP_BIGE 2
/// Convert 64 bit value to network byte order
/**
* This method is prefixed to avoid conflicts with operating system level
* macros for this functionality.
*
* TODO: figure out if it would be beneficial to use operating system level
* macros for this.
*
* @param src The integer in host byte order
* @return src converted to network byte order
*/
inline uint64_t _htonll(uint64_t src) {
static int typ = TYP_INIT;
unsigned char c;
union {
uint64_t ull;
unsigned char c[8];
} x;
if (typ == TYP_INIT) {
x.ull = 0x01;
typ = (x.c[7] == 0x01ULL) ? TYP_BIGE : TYP_SMLE;
}
if (typ == TYP_BIGE)
return src;
x.ull = src;
c = x.c[0]; x.c[0] = x.c[7]; x.c[7] = c;
c = x.c[1]; x.c[1] = x.c[6]; x.c[6] = c;
c = x.c[2]; x.c[2] = x.c[5]; x.c[5] = c;
c = x.c[3]; x.c[3] = x.c[4]; x.c[4] = c;
return x.ull;
}
/// Convert 64 bit value to host byte order
/**
* This method is prefixed to avoid conflicts with operating system level
* macros for this functionality.
*
* TODO: figure out if it would be beneficial to use operating system level
* macros for this.
*
* @param src The integer in network byte order
* @return src converted to host byte order
*/
inline uint64_t _ntohll(uint64_t src) {
return _htonll(src);
}
} // net
} // lib
} // websocketpp
#endif // WEBSOCKETPP_COMMON_NETWORK_HPP
|
