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class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> +<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> +<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div> +<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div> +<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> +<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> +<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> +<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> +<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> +<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> +<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div> +<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> +<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_IP_HPP__</span></div> +<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __STOUT_IP_HPP__</span></div> +<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// For 'sockaddr'.</span></div> +<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __WINDOWS__</span></div> +<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span><span class="preprocessor">#include <arpa/inet.h></span></div> +<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif // __WINDOWS__</span></div> +<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)</span></div> +<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#include <ifaddrs.h></span></div> +<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#endif // __linux__ || __APPLE__ || __FreeBSD__</span></div> +<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdint.h></span></div> +<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <stdio.h></span></div> +<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div> +<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div> +<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifdef __APPLE__</span></div> +<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#include <net/if.h></span></div> +<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <net/if_dl.h></span></div> +<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <net/if_types.h></span></div> +<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif // __APPLE__</span></div> +<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Note: Header grouping and ordering is considered before</span></div> +<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// inclusion/exclusion by platform.</span></div> +<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// For 'inet_pton', 'inet_ntop'.</span></div> +<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div> +<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor">#include <Ws2tcpip.h></span></div> +<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#include <netinet/in.h></span></div> +<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <sys/socket.h></span></div> +<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif // __WINDOWS__</span></div> +<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <sys/types.h></span></div> +<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div> +<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <iostream></span></div> +<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <string></span></div> +<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <vector></span></div> +<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> +<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <boost/functional/hash.hpp></span></div> +<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> +<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include <<a class="code" href="abort_8hpp.html">stout/abort.hpp</a>></span></div> +<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include <<a class="code" href="bits_8hpp.html">stout/bits.hpp</a>></span></div> +<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div> +<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#include <<a class="code" href="none_8hpp.html">stout/none.hpp</a>></span></div> +<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include <<a class="code" href="numify_8hpp.html">stout/numify.hpp</a>></span></div> +<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div> +<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#include <<a class="code" href="strerror_8hpp.html">stout/os/strerror.hpp</a>></span></div> +<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div> +<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div> +<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div> +<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div> +<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include <<a class="code" href="unreachable_8hpp.html">stout/unreachable.hpp</a>></span></div> +<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div> +<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div> +<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span><span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html">stout/windows.hpp</a>></span></div> +<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#endif // __WINDOWS__</span></div> +<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div> +<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="namespacenet.html"> 70</a></span> <span class="keyword">namespace </span>net {</div> +<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> +<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// Represents an IP.</span></div> +<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html"> 73</a></span> <span class="keyword">class </span><a class="code" href="classnet_1_1IP.html">IP</a></div> +<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> {</div> +<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">public</span>:</div> +<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// Creates an IP from the given string that has the dot-decimal</span></div> +<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// format. For example:</span></div> +<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// 10.0.0.1</span></div> +<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// 192.168.1.100</span></div> +<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// 172.158.1.23</span></div> +<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ac12ff5e8e0e95eac1bf8faeeadf88230">parse</a>(<span class="keyword">const</span> std::string& value, <span class="keywordtype">int</span> <a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>);</div> +<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div> +<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// Creates an IP from a struct sockaddr_storage.</span></div> +<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">create</a>(<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr_storage& _storage);</div> +<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> +<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// Creates an IP from a struct sockaddr.</span></div> +<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">create</a>(<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr& _storage);</div> +<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div> +<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// Creates an IP from struct in_addr. Note that by standard, struct</span></div> +<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// in_addr stores the IP address in network order.</span></div> +<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a59c961e993728ab3dc969249ca610417"> 91</a></span>  <span class="keyword">explicit</span> <a class="code" href="classnet_1_1IP.html#a59c961e993728ab3dc969249ca610417">IP</a>(<span class="keyword">const</span> <span class="keyword">struct</span> in_addr& _storage)</div> +<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  : family_(AF_INET)</div> +<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div> +<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  clear();</div> +<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  storage_.in_ = _storage;</div> +<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div> +<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> +<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// Creates an IP from a 32 bit unsigned integer. Note that the</span></div> +<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// integer stores the IP address in host order.</span></div> +<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a458f3ae5cd3ce3de5b594fceb16c00a1"> 100</a></span>  <span class="keyword">explicit</span> <a class="code" href="classnet_1_1IP.html#a458f3ae5cd3ce3de5b594fceb16c00a1">IP</a>(uint32_t _storage)</div> +<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  : family_(AF_INET)</div> +<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  {</div> +<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  clear();</div> +<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  storage_.in_.s_addr = htonl(_storage);</div> +<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div> +<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div> +<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Returns the family type.</span></div> +<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03"> 108</a></span>  <span class="keywordtype">int</span> <a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> family_;</div> +<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div> +<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> +<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// Returns the struct in_addr storage.</span></div> +<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb"> 114</a></span>  <a class="code" href="classTry.html">Try<struct in_addr></a> <a class="code" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb">in</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (family_ == AF_INET) {</div> +<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> storage_.in_;</div> +<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unsupported family type: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(family_));</div> +<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div> +<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div> +<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div> +<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// Checks if this IP is for loopback (e.g., INADDR_LOOPBACK).</span></div> +<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#aa7fa7dfc2b72525f0a86a07b03e8ca3e"> 124</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#aa7fa7dfc2b72525f0a86a07b03e8ca3e">isLoopback</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">switch</span> (family_) {</div> +<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">case</span> AF_INET:</div> +<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">return</span> storage_.in_.s_addr == htonl(INADDR_LOOPBACK);</div> +<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div> +<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div> +<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div> +<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Checks if this IP is for any incoming address (e.g., INADDR_ANY).</span></div> +<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#adef252cbd8b3cb3ddae4b1aea4ce04c1"> 135</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#adef252cbd8b3cb3ddae4b1aea4ce04c1">isAny</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">switch</span> (family_) {</div> +<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">case</span> AF_INET:</div> +<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> storage_.in_.s_addr == htonl(INADDR_ANY);</div> +<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div> +<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div> +<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div> +<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a5ceb2f0c6ba902dbe29c1d62f7f53427"> 145</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#a5ceb2f0c6ba902dbe29c1d62f7f53427">operator==</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (family_ != that.family_) {</div> +<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> +<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> memcmp(&storage_, &that.storage_, <span class="keyword">sizeof</span>(storage_)) == 0;</div> +<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div> +<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div> +<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div> +<div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#aaee210b512bc19fd992111a88da25929"> 154</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#aaee210b512bc19fd992111a88da25929">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> !(*<span class="keyword">this</span> == that);</div> +<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div> +<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div> +<div class="line"><a name="l00159"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a93ced0f7f6476376931b8617b00c8fb0"> 159</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#a93ced0f7f6476376931b8617b00c8fb0">operator<</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span> (family_ != that.family_) {</div> +<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> family_ < that.family_;</div> +<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> memcmp(&storage_, &that.storage_, <span class="keyword">sizeof</span>(storage_)) < 0;</div> +<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> +<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div> +<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div> +<div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#ae57a99f62c1f524eb2937408993365cb"> 168</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IP.html#ae57a99f62c1f524eb2937408993365cb">operator></a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (family_ != that.family_) {</div> +<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> family_ > that.family_;</div> +<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> memcmp(&storage_, &that.storage_, <span class="keyword">sizeof</span>(storage_)) > 0;</div> +<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div> +<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div> +<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div> +<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">private</span>:</div> +<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// NOTE: We need to clear the union when creating an IP because the</span></div> +<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// equality check uses memcmp.</span></div> +<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">void</span> clear()</div> +<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  {</div> +<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  memset(&storage_, 0, <span class="keyword">sizeof</span>(storage_));</div> +<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div> +<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div> +<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">union </span>Storage</div> +<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  {</div> +<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">struct </span>in_addr in_;</div> +<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  };</div> +<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div> +<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">int</span> family_;</div> +<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  Storage storage_;</div> +<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> };</div> +<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div> +<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div> +<div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#ac12ff5e8e0e95eac1bf8faeeadf88230"> 195</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ac12ff5e8e0e95eac1bf8faeeadf88230">IP::parse</a>(<span class="keyword">const</span> std::string& value, <span class="keywordtype">int</span> family)</div> +<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> {</div> +<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  Storage storage;</div> +<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">switch</span> (family) {</div> +<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (inet_pton(AF_INET, value.c_str(), &storage.in_) == 0) {</div> +<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to parse the IP"</span>);</div> +<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div> +<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IP.html#a59c961e993728ab3dc969249ca610417">IP</a>(storage.in_);</div> +<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div> +<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unsupported family type: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(family));</div> +<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div> +<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div> +<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> }</div> +<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div> +<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div> +<div class="line"><a name="l00212"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c"> 212</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">IP::create</a>(<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr_storage& _storage)</div> +<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> {</div> +<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// According to POSIX: (IEEE Std 1003.1, 2004)</span></div> +<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// (1) `sockaddr_storage` is "aligned at an appropriate boundary so that</span></div> +<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// pointers to it can be cast as pointers to protocol-specific address</span></div> +<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// structures and used to access the fields of those structures without</span></div> +<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// alignment problems."</span></div> +<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// (2) "When a `sockaddr_storage` structure is cast as a `sockaddr`</span></div> +<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">// structure, the `ss_family` field of the `sockaddr_storage` structure</span></div> +<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">// shall map onto the `sa_family` field of the `sockaddr` structure."</span></div> +<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// Therefore, casting from `const sockaddr_storage*` to `const sockaddr*`</span></div> +<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="comment">// (then subsequently dereferencing the `const sockaddr*`) should be safe.</span></div> +<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">// Note that casting in the reverse direction (`const sockaddr*` to</span></div> +<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// `const sockaddr_storage*`) would NOT be safe, since the former might</span></div> +<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">// not be aligned appropriately.</span></div> +<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">const</span> <span class="keyword">auto</span>* addr = <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span>struct sockaddr*<span class="keyword">></span>(&_storage);</div> +<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">create</a>(*addr);</div> +<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div> +<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div> +<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div> +<div class="line"><a name="l00235"></a><span class="lineno"><a class="line" href="classnet_1_1IP.html#a627b2e1c1f63a2bc6315a9dfecee141d"> 235</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">IP::create</a>(<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr& _storage)</div> +<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> {</div> +<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">switch</span> (_storage.sa_family) {</div> +<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">const</span> <span class="keyword">auto</span>* addr = <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span>struct sockaddr_in*<span class="keyword">></span>(&_storage);</div> +<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IP.html#a59c961e993728ab3dc969249ca610417">IP</a>(addr->sin_addr);</div> +<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div> +<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unsupported family type: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(_storage.sa_family));</div> +<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div> +<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  }</div> +<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> }</div> +<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div> +<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div> +<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment">// Returns the string representation of the given IP using the</span></div> +<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// canonical dot-decimal form. For example: "10.0.0.1".</span></div> +<div class="line"><a name="l00251"></a><span class="lineno"><a class="line" href="namespacenet.html#ab2ed5173deb8f3daf281f9828613956d"> 251</a></span> <span class="keyword">inline</span> std::ostream& <a class="code" href="namespacenet.html#ab2ed5173deb8f3daf281f9828613956d">operator<<</a>(std::ostream& stream, <span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& ip)</div> +<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> {</div> +<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">switch</span> (ip.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">char</span> buffer[INET_ADDRSTRLEN];</div> +<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">struct </span>in_addr in = ip.<a class="code" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb">in</a>().get();</div> +<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span> (inet_ntop(AF_INET, &in, buffer, <span class="keyword">sizeof</span>(buffer)) == <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="comment">// We do not expect inet_ntop to fail because all parameters</span></div> +<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="comment">// passed in are valid.</span></div> +<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="abort_8hpp.html#a4d84a74fe6e4f84bc3d2f901b9e89f93">ABORT</a>(<span class="stringliteral">"Failed to get human-readable IP for "</span> +</div> +<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(ntohl(in.s_addr)) + <span class="stringliteral">": "</span> + <a class="code" href="namespaceos.html#aa9ac22b4028f187826a9861373006abf">os::strerror</a>(errno));</div> +<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div> +<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div> +<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  stream << buffer;</div> +<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> stream;</div> +<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div> +<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  }</div> +<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div> +<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div> +<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div> +<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div> +<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">// Represents an IP network. We store the IP address and the IP</span></div> +<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// netmask which defines the subnet.</span></div> +<div class="line"><a name="l00276"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html"> 276</a></span> <span class="keyword">class </span><a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a></div> +<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> {</div> +<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">public</span>:</div> +<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// Returns the IPv4 network for loopback (i.e., 127.0.0.1/8).</span></div> +<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keyword">static</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a> <a class="code" href="classnet_1_1IPNetwork.html#af71cd4cc8ebff5ecf9bec6da3eb9d97d">LOOPBACK_V4</a>();</div> +<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div> +<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// Creates an IP network from the given string that has the</span></div> +<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// dot-decimal format with subnet prefix).</span></div> +<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// For example:</span></div> +<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// 10.0.0.1/8</span></div> +<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// 192.168.1.100/24</span></div> +<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// 172.158.1.23</span></div> +<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a8ebd0dd070b2e0bf10914225c98aac0f">parse</a>(<span class="keyword">const</span> std::string& value, <span class="keywordtype">int</span> family);</div> +<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div> +<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// Creates an IP network from the given IP address and netmask.</span></div> +<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// Returns error if the netmask is not valid (e.g., not contiguous).</span></div> +<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">create</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& <a class="code" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67">address</a>, <span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& <a class="code" href="classnet_1_1IPNetwork.html#a68e36065af86781ad06a285bcb120ed4">netmask</a>);</div> +<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div> +<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">// Creates an IP network from an IP address and a subnet prefix.</span></div> +<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">// Returns error if the prefix is not valid.</span></div> +<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">create</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& address, <span class="keywordtype">int</span> <a class="code" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50">prefix</a>);</div> +<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div> +<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// Returns the first available IP network of a given link device.</span></div> +<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// The link device is specified using its name (e.g., eth0). Returns</span></div> +<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// error if the link device is not found. Returns none if the link</span></div> +<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// device is found, but does not have an IP network.</span></div> +<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// TODO(jieyu): It is uncommon, but likely that a link device has</span></div> +<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// multiple IP networks. In that case, consider returning the</span></div> +<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">// primary IP network instead of the first one.</span></div> +<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">static</span> <a class="code" href="classResult.html">Result<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#ae3b0f30eb04ac069e377f62afae08a42">fromLinkDevice</a>(<span class="keyword">const</span> std::string& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>, <span class="keywordtype">int</span> family);</div> +<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div> +<div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67"> 307</a></span>  <a class="code" href="classnet_1_1IP.html">IP</a> <a class="code" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67">address</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> address_; }</div> +<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div> +<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a68e36065af86781ad06a285bcb120ed4"> 309</a></span>  <a class="code" href="classnet_1_1IP.html">IP</a> <a class="code" href="classnet_1_1IPNetwork.html#a68e36065af86781ad06a285bcb120ed4">netmask</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> netmask_; }</div> +<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div> +<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// Returns the prefix of the subnet defined by the IP netmask.</span></div> +<div class="line"><a name="l00312"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50"> 312</a></span>  <span class="keywordtype">int</span> <a class="code" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50">prefix</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">switch</span> (netmask_.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">return</span> <a class="code" href="namespacebits.html#a0fada23875c3456cff49f279b5a5239b">bits::countSetBits</a>(ntohl(netmask_.<a class="code" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb">in</a>().get().s_addr));</div> +<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div> +<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div> +<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }</div> +<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div> +<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div> +<div class="line"><a name="l00324"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#aa76c5f02de4eb076d5c26b322d418639"> 324</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IPNetwork.html#aa76c5f02de4eb076d5c26b322d418639">operator==</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">return</span> address_ == that.address_ && netmask_ == that.netmask_;</div> +<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div> +<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div> +<div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#ae10f694763e117de1f209efa45963b06"> 329</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classnet_1_1IPNetwork.html#ae10f694763e117de1f209efa45963b06">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>& that)<span class="keyword"> const</span></div> +<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">return</span> !(*<span class="keyword">this</span> == that);</div> +<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  }</div> +<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div> +<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">private</span>:</div> +<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& _address, <span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& _netmask)</div> +<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  : address_(_address), netmask_(_netmask) {}</div> +<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> </div> +<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  IP address_;</div> +<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  IP netmask_;</div> +<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> };</div> +<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div> +<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div> +<div class="line"><a name="l00343"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a8ebd0dd070b2e0bf10914225c98aac0f"> 343</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a8ebd0dd070b2e0bf10914225c98aac0f">IPNetwork::parse</a>(<span class="keyword">const</span> std::string& value, <span class="keywordtype">int</span> family)</div> +<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> {</div> +<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  std::vector<std::string> tokens = <a class="code" href="namespacestrings.html#a1f86a4a73f20056475dc065ec984eb7a">strings::split</a>(value, <span class="stringliteral">"/"</span>);</div> +<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div> +<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (tokens.size() != 2) {</div> +<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div> +<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"Unexpected number of '/' detected: "</span> +</div> +<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(tokens.size()));</div> +<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  }</div> +<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div> +<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// Parse the IP address.</span></div> +<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="classTry.html">Try<IP></a> <a class="code" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67">address</a> = <a class="code" href="classnet_1_1IP.html#ac12ff5e8e0e95eac1bf8faeeadf88230">IP::parse</a>(tokens[0], family);</div> +<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">if</span> (address.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> +<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to parse the IP address: "</span> + address.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> +<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div> +<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div> +<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// Parse the subnet prefix.</span></div> +<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50">prefix</a> = numify<int>(tokens[1]);</div> +<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (prefix.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> +<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Subnet prefix is not a number"</span>);</div> +<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  }</div> +<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> </div> +<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">create</a>(address.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>(), prefix.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> +<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> }</div> +<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div> +<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div> +<div class="line"><a name="l00369"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#af71cd4cc8ebff5ecf9bec6da3eb9d97d"> 369</a></span> <span class="keyword">inline</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a> <a class="code" href="classnet_1_1IPNetwork.html#af71cd4cc8ebff5ecf9bec6da3eb9d97d">IPNetwork::LOOPBACK_V4</a>()</div> +<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> {</div> +<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IPNetwork.html#a8ebd0dd070b2e0bf10914225c98aac0f">parse</a>(<span class="stringliteral">"127.0.0.1/8"</span>, AF_INET).get();</div> +<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> }</div> +<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div> +<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div> +<div class="line"><a name="l00375"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6"> 375</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">IPNetwork::create</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& <a class="code" href="namespaceprocess_1_1network.html#a1987d4376ac5e2f04ad72e6c84c7569c">address</a>, <span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& netmask)</div> +<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> {</div> +<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">if</span> (address.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>() != netmask.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div> +<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="stringliteral">"The network families of the IP address '"</span> +</div> +<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(address.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) + <span class="stringliteral">"' and the IP netmask '"</span> +</div> +<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(netmask.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) + <span class="stringliteral">"' do not match"</span>);</div> +<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div> +<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div> +<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">switch</span> (address.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  uint32_t mask = ntohl(netmask.<a class="code" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb">in</a>().get().s_addr);</div> +<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">if</span> (((~mask + 1) & (~mask)) != 0) {</div> +<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Netmask is not valid"</span>);</div> +<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div> +<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div> +<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>(address, netmask);</div> +<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div> +<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div> +<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  }</div> +<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> }</div> +<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div> +<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div> +<div class="line"><a name="l00400"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#a81a1ece4e0d162b0e08438f8ede51a7c"> 400</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">IPNetwork::create</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">IP</a>& <a class="code" href="namespaceprocess_1_1network.html#a1987d4376ac5e2f04ad72e6c84c7569c">address</a>, <span class="keywordtype">int</span> <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a>)</div> +<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> {</div> +<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">if</span> (prefix < 0) {</div> +<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Subnet prefix is negative"</span>);</div> +<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div> +<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div> +<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">switch</span> (address.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">case</span> AF_INET: {</div> +<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> (prefix > 32) {</div> +<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Subnet prefix is larger than 32"</span>);</div> +<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div> +<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div> +<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// Avoid left-shifting by 32 bits when prefix is 0.</span></div> +<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  uint32_t mask = 0;</div> +<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">if</span> (prefix > 0) {</div> +<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  mask = 0xffffffff << (32 - <a class="code" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50">prefix</a>);</div> +<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  }</div> +<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">return</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>(address, <a class="code" href="classnet_1_1IP.html">IP</a>(mask));</div> +<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div> +<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">default</span>: {</div> +<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> +<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  }</div> +<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  }</div> +<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> }</div> +<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div> +<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div> +<div class="line"><a name="l00426"></a><span class="lineno"><a class="line" href="classnet_1_1IPNetwork.html#ae3b0f30eb04ac069e377f62afae08a42"> 426</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<IPNetwork></a> <a class="code" href="classnet_1_1IPNetwork.html#ae3b0f30eb04ac069e377f62afae08a42">IPNetwork::fromLinkDevice</a>(</div> +<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">int</span> family)</div> +<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> {</div> +<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="preprocessor">#if !defined(__linux__) && !defined(__APPLE__) && !defined(__FreeBSD__)</span></div> +<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Not implemented"</span>);</div> +<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (family != AF_INET) {</div> +<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unsupported family type: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(family));</div> +<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  }</div> +<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div> +<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">struct </span>ifaddrs* ifaddr = <span class="keyword">nullptr</span>;</div> +<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">if</span> (getifaddrs(&ifaddr) == -1) {</div> +<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div> +<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  }</div> +<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div> +<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">// Indicates whether the link device is found or not.</span></div> +<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">bool</span> found = <span class="keyword">false</span>;</div> +<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> </div> +<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">for</span> (<span class="keyword">struct</span> ifaddrs* ifa = ifaddr; ifa != <span class="keyword">nullptr</span>; ifa = ifa->ifa_next) {</div> +<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">if</span> (ifa->ifa_name != <span class="keyword">nullptr</span> && !strcmp(ifa->ifa_name, name.c_str())) {</div> +<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  found = <span class="keyword">true</span>;</div> +<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div> +<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">if</span> (ifa->ifa_addr != <span class="keyword">nullptr</span> && ifa->ifa_addr->sa_family == family) {</div> +<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <a class="code" href="classnet_1_1IP.html">IP</a> <a class="code" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67">address</a> = <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">IP::create</a>(*ifa->ifa_addr).get();</div> +<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div> +<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (ifa->ifa_netmask != <span class="keyword">nullptr</span> &&</div> +<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  ifa->ifa_netmask->sa_family == family) {</div> +<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <a class="code" href="classnet_1_1IP.html">IP</a> <a class="code" href="classnet_1_1IPNetwork.html#a68e36065af86781ad06a285bcb120ed4">netmask</a> = <a class="code" href="classnet_1_1IP.html#ada206eb1ab14c032f071daf9b8c1b96c">IP::create</a>(*ifa->ifa_netmask).get();</div> +<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div> +<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  freeifaddrs(ifaddr);</div> +<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> </div> +<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <a class="code" href="classTry.html">Try<IPNetwork></a> network = <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">IPNetwork::create</a>(address, netmask);</div> +<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">if</span> (network.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> +<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(network.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> +<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  }</div> +<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div> +<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">return</span> network.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>();</div> +<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  }</div> +<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div> +<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  freeifaddrs(ifaddr);</div> +<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div> +<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">// Note that this is the case where netmask is not specified.</span></div> +<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="comment">// We've seen such cases when VPN is used. In that case, a</span></div> +<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="comment">// default /32 prefix is used.</span></div> +<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <a class="code" href="classTry.html">Try<IPNetwork></a> network = <a class="code" href="classnet_1_1IPNetwork.html#a29645a80f4a422825dcd402f86f138e6">IPNetwork::create</a>(address, 32);</div> +<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">if</span> (network.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> +<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(network.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> +<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  }</div> +<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div> +<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">return</span> network.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>();</div> +<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  }</div> +<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  }</div> +<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div> +<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div> +<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  freeifaddrs(ifaddr);</div> +<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div> +<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">if</span> (!found) {</div> +<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Cannot find the link device"</span>);</div> +<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  }</div> +<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div> +<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div> +<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> </div> +<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> </div> +<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment">// Returns the string representation of the given IP network using the</span></div> +<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment">// canonical dot-decimal form with prefix. For example: "10.0.0.1/8".</span></div> +<div class="line"><a name="l00494"></a><span class="lineno"><a class="line" href="namespacenet.html#a1af5f0d83c6273265de03ff4a23979d3"> 494</a></span> <span class="keyword">inline</span> std::ostream& <a class="code" href="namespacenet.html#ab2ed5173deb8f3daf281f9828613956d">operator<<</a>(std::ostream& stream, <span class="keyword">const</span> <a class="code" href="classnet_1_1IPNetwork.html">IPNetwork</a>& network)</div> +<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> {</div> +<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  stream << network.<a class="code" href="classnet_1_1IPNetwork.html#a9986306f9653245f55f4570771726a67">address</a>() << <span class="stringliteral">"/"</span> << network.<a class="code" href="classnet_1_1IPNetwork.html#a119a8f122571f5532146b8130c0c0a50">prefix</a>();</div> +<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div> +<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">return</span> stream;</div> +<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> }</div> +<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div> +<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> } <span class="comment">// namespace net {</span></div> +<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> </div> +<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="keyword">namespace </span>std {</div> +<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div> +<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="keyword">template</span> <></div> +<div class="line"><a name="l00506"></a><span class="lineno"><a class="line" href="structstd_1_1hash_3_01net_1_1IP_01_4.html"> 506</a></span> <span class="keyword">struct </span>hash<net::IP></div> +<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> {</div> +<div class="line"><a name="l00508"></a><span class="lineno"><a class="line" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#af846150bb8c9fcf5e4063e3da50b1223"> 508</a></span>  <span class="keyword">typedef</span> <span class="keywordtype">size_t</span> <a class="code" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#af846150bb8c9fcf5e4063e3da50b1223">result_type</a>;</div> +<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> </div> +<div class="line"><a name="l00510"></a><span class="lineno"><a class="line" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#a5e2eba58070d0460314c2aed7c10453a"> 510</a></span>  <span class="keyword">typedef</span> <a class="code" href="classnet_1_1IP.html">net::IP</a> <a class="code" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#a5e2eba58070d0460314c2aed7c10453a">argument_type</a>;</div> +<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div> +<div class="line"><a name="l00512"></a><span class="lineno"><a class="line" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#af873f4d78fd40b8156b8cc657d2d4244"> 512</a></span>  <a class="code" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#af846150bb8c9fcf5e4063e3da50b1223">result_type</a> <a class="code" href="structstd_1_1hash_3_01net_1_1IP_01_4.html#af873f4d78fd40b8156b8cc657d2d4244">operator()</a>(<span class="keyword">const</span> <a class="code" href="classnet_1_1IP.html">argument_type</a>& ip)<span class="keyword"> const</span></div> +<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="keyword"> </span>{</div> +<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordtype">size_t</span> seed = 0;</div> +<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div> +<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">switch</span> (ip.<a class="code" href="classnet_1_1IP.html#ac7007d7cc8e87925e19d60515bf28c03">family</a>()) {</div> +<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">case</span> AF_INET:</div> +<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  boost::hash_combine(seed, htonl(ip.<a class="code" href="classnet_1_1IP.html#a9b2b8da4b79c15e6632a9305a3d4c7cb">in</a>().get().s_addr));</div> +<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">return</span> seed;</div> +<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&
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