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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
//
// ip/impl/address_v4.ipp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef ASIO_IP_IMPL_ADDRESS_V4_IPP
#define ASIO_IP_IMPL_ADDRESS_V4_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#include <climits>
#include <limits>
#include <stdexcept>
#include "asio/error.hpp"
#include "asio/detail/socket_ops.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/detail/throw_exception.hpp"
#include "asio/ip/address_v4.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace ip {
address_v4::address_v4(const address_v4::bytes_type& bytes)
{
#if UCHAR_MAX > 0xFF
if (bytes[0] > 0xFF || bytes[1] > 0xFF
|| bytes[2] > 0xFF || bytes[3] > 0xFF)
{
std::out_of_range ex("address_v4 from bytes_type");
asio::detail::throw_exception(ex);
}
#endif // UCHAR_MAX > 0xFF
using namespace std; // For memcpy.
memcpy(&addr_.s_addr, bytes.data(), 4);
}
address_v4::address_v4(address_v4::uint_type addr)
{
if ((std::numeric_limits<uint_type>::max)() > 0xFFFFFFFF)
{
std::out_of_range ex("address_v4 from unsigned integer");
asio::detail::throw_exception(ex);
}
addr_.s_addr = asio::detail::socket_ops::host_to_network_long(
static_cast<asio::detail::u_long_type>(addr));
}
address_v4::bytes_type address_v4::to_bytes() const
{
using namespace std; // For memcpy.
bytes_type bytes;
#if defined(ASIO_HAS_STD_ARRAY)
memcpy(bytes.data(), &addr_.s_addr, 4);
#else // defined(ASIO_HAS_STD_ARRAY)
memcpy(bytes.elems, &addr_.s_addr, 4);
#endif // defined(ASIO_HAS_STD_ARRAY)
return bytes;
}
address_v4::uint_type address_v4::to_uint() const
{
return asio::detail::socket_ops::network_to_host_long(addr_.s_addr);
}
#if !defined(ASIO_NO_DEPRECATED)
unsigned long address_v4::to_ulong() const
{
return asio::detail::socket_ops::network_to_host_long(addr_.s_addr);
}
#endif // !defined(ASIO_NO_DEPRECATED)
std::string address_v4::to_string() const
{
asio::error_code ec;
char addr_str[asio::detail::max_addr_v4_str_len];
const char* addr =
asio::detail::socket_ops::inet_ntop(
ASIO_OS_DEF(AF_INET), &addr_, addr_str,
asio::detail::max_addr_v4_str_len, 0, ec);
if (addr == 0)
asio::detail::throw_error(ec);
return addr;
}
#if !defined(ASIO_NO_DEPRECATED)
std::string address_v4::to_string(asio::error_code& ec) const
{
char addr_str[asio::detail::max_addr_v4_str_len];
const char* addr =
asio::detail::socket_ops::inet_ntop(
ASIO_OS_DEF(AF_INET), &addr_, addr_str,
asio::detail::max_addr_v4_str_len, 0, ec);
if (addr == 0)
return std::string();
return addr;
}
#endif // !defined(ASIO_NO_DEPRECATED)
bool address_v4::is_loopback() const
{
return (to_uint() & 0xFF000000) == 0x7F000000;
}
bool address_v4::is_unspecified() const
{
return to_uint() == 0;
}
#if !defined(ASIO_NO_DEPRECATED)
bool address_v4::is_class_a() const
{
return (to_uint() & 0x80000000) == 0;
}
bool address_v4::is_class_b() const
{
return (to_uint() & 0xC0000000) == 0x80000000;
}
bool address_v4::is_class_c() const
{
return (to_uint() & 0xE0000000) == 0xC0000000;
}
#endif // !defined(ASIO_NO_DEPRECATED)
bool address_v4::is_multicast() const
{
return (to_uint() & 0xF0000000) == 0xE0000000;
}
#if !defined(ASIO_NO_DEPRECATED)
address_v4 address_v4::broadcast(const address_v4& addr, const address_v4& mask)
{
return address_v4(addr.to_uint() | (mask.to_uint() ^ 0xFFFFFFFF));
}
address_v4 address_v4::netmask(const address_v4& addr)
{
if (addr.is_class_a())
return address_v4(0xFF000000);
if (addr.is_class_b())
return address_v4(0xFFFF0000);
if (addr.is_class_c())
return address_v4(0xFFFFFF00);
return address_v4(0xFFFFFFFF);
}
#endif // !defined(ASIO_NO_DEPRECATED)
address_v4 make_address_v4(const char* str)
{
asio::error_code ec;
address_v4 addr = make_address_v4(str, ec);
asio::detail::throw_error(ec);
return addr;
}
address_v4 make_address_v4(
const char* str, asio::error_code& ec)
{
address_v4::bytes_type bytes;
if (asio::detail::socket_ops::inet_pton(
ASIO_OS_DEF(AF_INET), str, &bytes, 0, ec) <= 0)
return address_v4();
return address_v4(bytes);
}
address_v4 make_address_v4(const std::string& str)
{
return make_address_v4(str.c_str());
}
address_v4 make_address_v4(
const std::string& str, asio::error_code& ec)
{
return make_address_v4(str.c_str(), ec);
}
#if defined(ASIO_HAS_STRING_VIEW)
address_v4 make_address_v4(string_view str)
{
return make_address_v4(static_cast<std::string>(str));
}
address_v4 make_address_v4(string_view str,
asio::error_code& ec)
{
return make_address_v4(static_cast<std::string>(str), ec);
}
#endif // defined(ASIO_HAS_STRING_VIEW)
} // namespace ip
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // ASIO_IP_IMPL_ADDRESS_V4_IPP
|
