1 //
2 // network_v4.cpp
3 // ~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
6 // Copyright (c) 2014 Oliver Kowalke (oliver dot kowalke at gmail dot com)
7 //
8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
10 //
11
12 // Disable autolinking for unit tests.
13 #if !defined(BOOST_ALL_NO_LIB)
14 #define BOOST_ALL_NO_LIB 1
15 #endif // !defined(BOOST_ALL_NO_LIB)
16
17 // Test that header file is self-contained.
18 #include "asio/ip/network_v4.hpp"
19
20 #include "../unit_test.hpp"
21
22 //------------------------------------------------------------------------------
23
24 // ip_network_v4_compile test
25 // ~~~~~~~~~~~~~~~~~~~~~~~~~~
26 // The following test checks that all public member functions on the class
27 // ip::network_v4 compile and link correctly. Runtime failures are ignored.
28
29 namespace ip_network_v4_compile {
30
test()31 void test()
32 {
33 using namespace asio;
34 namespace ip = asio::ip;
35
36 try
37 {
38 asio::error_code ec;
39
40 // network_v4 constructors.
41
42 ip::network_v4 net1(ip::make_address_v4("192.168.1.0"), 32);
43 ip::network_v4 net2(ip::make_address_v4("192.168.1.0"),
44 ip::make_address_v4("255.255.255.0"));
45
46 // network_v4 functions.
47
48 ip::address_v4 addr1 = net1.address();
49 (void)addr1;
50
51 unsigned short prefix_len = net1.prefix_length();
52 (void)prefix_len;
53
54 ip::address_v4 addr2 = net1.netmask();
55 (void)addr2;
56
57 ip::address_v4 addr3 = net1.network();
58 (void)addr3;
59
60 ip::address_v4 addr4 = net1.broadcast();
61 (void)addr4;
62
63 ip::address_v4_range hosts = net1.hosts();
64 (void)hosts;
65
66 ip::network_v4 net3 = net1.canonical();
67 (void)net3;
68
69 bool b1 = net1.is_host();
70 (void)b1;
71
72 bool b2 = net1.is_subnet_of(net2);
73 (void)b2;
74
75 std::string s1 = net1.to_string();
76 (void)s1;
77
78 std::string s2 = net1.to_string(ec);
79 (void)s2;
80
81 // network_v4 comparisons.
82
83 bool b3 = (net1 == net2);
84 (void)b3;
85
86 bool b4 = (net1 != net2);
87 (void)b4;
88
89 }
90 catch (std::exception&)
91 {
92 }
93 }
94
95 } // namespace ip_network_v4_compile
96
97 //------------------------------------------------------------------------------
98
99 // ip_network_v4_runtime test
100 // ~~~~~~~~~~~~~~~~~~~~~~~~~~
101 // The following test checks that the various public member functions meet the
102 // necessary postconditions.
103
104 namespace ip_network_v4_runtime {
105
test()106 void test()
107 {
108 using asio::ip::address_v4;
109 using asio::ip::make_address_v4;
110 using asio::ip::network_v4;
111 using asio::ip::make_network_v4;
112
113 address_v4 addr = make_address_v4("1.2.3.4");
114
115 // calculate prefix length
116
117 network_v4 net1(addr, make_address_v4("255.255.255.0"));
118 ASIO_CHECK(net1.prefix_length() == 24);
119
120 network_v4 net2(addr, make_address_v4("255.255.255.192"));
121 ASIO_CHECK(net2.prefix_length() == 26);
122
123 network_v4 net3(addr, make_address_v4("128.0.0.0"));
124 ASIO_CHECK(net3.prefix_length() == 1);
125
126 std::string msg;
127 try
128 {
129 make_network_v4(addr, make_address_v4("255.255.255.1"));
130 }
131 catch(std::exception& ex)
132 {
133 msg = ex.what();
134 }
135 ASIO_CHECK(msg == std::string("non-contiguous netmask"));
136
137 msg.clear();
138 try
139 {
140 make_network_v4(addr, make_address_v4("0.255.255.0"));
141 }
142 catch(std::exception& ex)
143 {
144 msg = ex.what();
145 }
146 ASIO_CHECK(msg == std::string("non-contiguous netmask"));
147
148 // calculate netmask
149
150 network_v4 net4(addr, 23);
151 ASIO_CHECK(net4.netmask() == make_address_v4("255.255.254.0"));
152
153 network_v4 net5(addr, 12);
154 ASIO_CHECK(net5.netmask() == make_address_v4("255.240.0.0"));
155
156 network_v4 net6(addr, 24);
157 ASIO_CHECK(net6.netmask() == make_address_v4("255.255.255.0"));
158
159 network_v4 net7(addr, 16);
160 ASIO_CHECK(net7.netmask() == make_address_v4("255.255.0.0"));
161
162 network_v4 net8(addr, 8);
163 ASIO_CHECK(net8.netmask() == make_address_v4("255.0.0.0"));
164
165 network_v4 net9(addr, 32);
166 ASIO_CHECK(net9.netmask() == make_address_v4("255.255.255.255"));
167
168 network_v4 net10(addr, 1);
169 ASIO_CHECK(net10.netmask() == make_address_v4("128.0.0.0"));
170
171 network_v4 net11(addr, 0);
172 ASIO_CHECK(net11.netmask() == make_address_v4("0.0.0.0"));
173
174 msg.clear();
175 try
176 {
177 make_network_v4(addr, 33);
178 }
179 catch(std::out_of_range& ex)
180 {
181 msg = ex.what();
182 }
183 ASIO_CHECK(msg == std::string("prefix length too large"));
184
185 // construct address range from address and prefix length
186 ASIO_CHECK(network_v4(make_address_v4("192.168.77.100"), 32).network() == make_address_v4("192.168.77.100"));
187 ASIO_CHECK(network_v4(make_address_v4("192.168.77.100"), 24).network() == make_address_v4("192.168.77.0"));
188 ASIO_CHECK(network_v4(make_address_v4("192.168.77.128"), 25).network() == make_address_v4("192.168.77.128"));
189
190 // construct address range from string in CIDR notation
191 ASIO_CHECK(make_network_v4("192.168.77.100/32").network() == make_address_v4("192.168.77.100"));
192 ASIO_CHECK(make_network_v4("192.168.77.100/24").network() == make_address_v4("192.168.77.0"));
193 ASIO_CHECK(make_network_v4("192.168.77.128/25").network() == make_address_v4("192.168.77.128"));
194
195 // prefix length
196 ASIO_CHECK(make_network_v4("193.99.144.80/24").prefix_length() == 24);
197 ASIO_CHECK(network_v4(make_address_v4("193.99.144.80"), 24).prefix_length() == 24);
198 ASIO_CHECK(network_v4(make_address_v4("192.168.77.0"), make_address_v4("255.255.255.0")).prefix_length() == 24);
199
200 // to string
201 std::string a("192.168.77.0/32");
202 ASIO_CHECK(make_network_v4(a.c_str()).to_string() == a);
203 ASIO_CHECK(network_v4(make_address_v4("192.168.77.10"), 24).to_string() == std::string("192.168.77.10/24"));
204
205 // return host part
206 ASIO_CHECK(make_network_v4("192.168.77.11/24").address() == make_address_v4("192.168.77.11"));
207
208 // return host in CIDR notation
209 ASIO_CHECK(make_network_v4("192.168.78.30/20").address().to_string() == "192.168.78.30");
210
211 // return network in CIDR notation
212 ASIO_CHECK(make_network_v4("192.168.78.30/20").canonical().to_string() == "192.168.64.0/20");
213
214 // is host
215 ASIO_CHECK(make_network_v4("192.168.77.0/32").is_host());
216 ASIO_CHECK(!make_network_v4("192.168.77.0/31").is_host());
217
218 // is real subnet of
219 ASIO_CHECK(make_network_v4("192.168.0.192/24").is_subnet_of(make_network_v4("192.168.0.0/16")));
220 ASIO_CHECK(make_network_v4("192.168.0.0/24").is_subnet_of(make_network_v4("192.168.192.168/16")));
221 ASIO_CHECK(make_network_v4("192.168.0.192/24").is_subnet_of(make_network_v4("192.168.192.168/16")));
222 ASIO_CHECK(make_network_v4("192.168.0.0/24").is_subnet_of(make_network_v4("192.168.0.0/16")));
223 ASIO_CHECK(make_network_v4("192.168.0.0/24").is_subnet_of(make_network_v4("192.168.0.0/23")));
224 ASIO_CHECK(make_network_v4("192.168.0.0/24").is_subnet_of(make_network_v4("192.168.0.0/0")));
225 ASIO_CHECK(make_network_v4("192.168.0.0/32").is_subnet_of(make_network_v4("192.168.0.0/24")));
226
227 ASIO_CHECK(!make_network_v4("192.168.0.0/32").is_subnet_of(make_network_v4("192.168.0.0/32")));
228 ASIO_CHECK(!make_network_v4("192.168.0.0/24").is_subnet_of(make_network_v4("192.168.1.0/24")));
229 ASIO_CHECK(!make_network_v4("192.168.0.0/16").is_subnet_of(make_network_v4("192.168.1.0/24")));
230
231 network_v4 r(make_network_v4("192.168.0.0/24"));
232 ASIO_CHECK(!r.is_subnet_of(r));
233
234 network_v4 net12(make_network_v4("192.168.0.2/24"));
235 network_v4 net13(make_network_v4("192.168.1.1/28"));
236 network_v4 net14(make_network_v4("192.168.1.21/28"));
237 // network
238 ASIO_CHECK(net12.network() == make_address_v4("192.168.0.0"));
239 ASIO_CHECK(net13.network() == make_address_v4("192.168.1.0"));
240 ASIO_CHECK(net14.network() == make_address_v4("192.168.1.16"));
241 // netmask
242 ASIO_CHECK(net12.netmask() == make_address_v4("255.255.255.0"));
243 ASIO_CHECK(net13.netmask() == make_address_v4("255.255.255.240"));
244 ASIO_CHECK(net14.netmask() == make_address_v4("255.255.255.240"));
245 // broadcast
246 ASIO_CHECK(net12.broadcast() == make_address_v4("192.168.0.255"));
247 ASIO_CHECK(net13.broadcast() == make_address_v4("192.168.1.15"));
248 ASIO_CHECK(net14.broadcast() == make_address_v4("192.168.1.31"));
249 // iterator
250 ASIO_CHECK(std::distance(net12.hosts().begin(),net12.hosts().end()) == 254);
251 ASIO_CHECK(*net12.hosts().begin() == make_address_v4("192.168.0.1"));
252 ASIO_CHECK(net12.hosts().end() != net12.hosts().find(make_address_v4("192.168.0.10")));
253 ASIO_CHECK(net12.hosts().end() == net12.hosts().find(make_address_v4("192.168.1.10")));
254 ASIO_CHECK(std::distance(net13.hosts().begin(),net13.hosts().end()) == 14);
255 ASIO_CHECK(*net13.hosts().begin() == make_address_v4("192.168.1.1"));
256 ASIO_CHECK(net13.hosts().end() != net13.hosts().find(make_address_v4("192.168.1.14")));
257 ASIO_CHECK(net13.hosts().end() == net13.hosts().find(make_address_v4("192.168.1.15")));
258 ASIO_CHECK(std::distance(net14.hosts().begin(),net14.hosts().end()) == 14);
259 ASIO_CHECK(*net14.hosts().begin() == make_address_v4("192.168.1.17"));
260 ASIO_CHECK(net14.hosts().end() != net14.hosts().find(make_address_v4("192.168.1.30")));
261 ASIO_CHECK(net14.hosts().end() == net14.hosts().find(make_address_v4("192.168.1.31")));
262 }
263
264 } // namespace ip_network_v4_runtime
265
266 //------------------------------------------------------------------------------
267
268 ASIO_TEST_SUITE
269 (
270 "ip/network_v4",
271 ASIO_TEST_CASE(ip_network_v4_compile::test)
272 ASIO_TEST_CASE(ip_network_v4_runtime::test)
273 )
274