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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div id="projectname">libevent
 <span id="projectnumber">2.2.1</span>
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<div id="projectbrief">Event notification library</div>
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<div class="contents">
<a href="dns_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2006-2007 Niels Provos <[email protected]></span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson</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"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * modification, are permitted provided that the following conditions</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * are met:</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> */</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="comment">/*</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * The original DNS code is due to Adam Langley with heavy</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * modifications by Nick Mathewson. Adam put his DNS software in the</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * public domain. You can find his original copyright below. Please,</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * aware that the code as part of Libevent is governed by the 3-clause</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * BSD license above.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * This software is Public Domain. To view a copy of the public domain dedication,</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * I ask and expect, but do not require, that all derivative works contain an</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * attribution similar to:</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * Parts developed by Adam Langley <[email protected]></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * You may wish to replace the word "Parts" with something else depending on</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * the amount of original code.</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * (Derivative works does not include programs which link against, run or include</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * the source verbatim in their source distributions)</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor">#ifndef EVENT2_DNS_H_INCLUDED_</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#define EVENT2_DNS_H_INCLUDED_</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> <span class="preprocessor">#include <event2/visibility.h></span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">/* For integer types. */</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="preprocessor">#include <<a class="code" href="util_8h.html">event2/util.h</a>></span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  </div>
<div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="dns_8h.html#a9ab3095d5fc6b9b476753f1dc43ca062"> 154</a></span> <span class="preprocessor">#define DNS_ERR_NONE 0</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="dns_8h.html#af83b8dba06d732f95c5134a26189bf07"> 156</a></span> <span class="preprocessor">#define DNS_ERR_FORMAT 1</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"><a class="line" href="dns_8h.html#a288664d29454d839d3337c9f1a16287b"> 159</a></span> <span class="preprocessor">#define DNS_ERR_SERVERFAILED 2</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="dns_8h.html#a69a1417da1abb3ec925bac4bdc9dda00"> 161</a></span> <span class="preprocessor">#define DNS_ERR_NOTEXIST 3</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="dns_8h.html#ad4c885f89aab5bba9636bcab0b2bb46f"> 163</a></span> <span class="preprocessor">#define DNS_ERR_NOTIMPL 4</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div>
<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="dns_8h.html#ac2612a0b4f473b2e0d8353968cf958c8"> 166</a></span> <span class="preprocessor">#define DNS_ERR_REFUSED 5</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="dns_8h.html#ab133c94928a9ebe3d37ad5a5d3722fb8"> 168</a></span> <span class="preprocessor">#define DNS_ERR_TRUNCATED 65</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
<div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="dns_8h.html#a09a9900444d399cb6d516e40a1629f79"> 170</a></span> <span class="preprocessor">#define DNS_ERR_UNKNOWN 66</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  </div>
<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="dns_8h.html#acb501430c13d4432314859d36b21c59c"> 172</a></span> <span class="preprocessor">#define DNS_ERR_TIMEOUT 67</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div>
<div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="dns_8h.html#ad64cc74ddb454b815d42e23b4d24bf16"> 174</a></span> <span class="preprocessor">#define DNS_ERR_SHUTDOWN 68</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"><a class="line" href="dns_8h.html#aa213c5179d5439b1ceb6b356cfa6670a"> 176</a></span> <span class="preprocessor">#define DNS_ERR_CANCEL 69</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  </div>
<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="dns_8h.html#a339623396788ff9271b5cc345b83a2e8"> 180</a></span> <span class="preprocessor">#define DNS_ERR_NODATA 70</span></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> <span class="preprocessor">#define DNS_IPv4_A 1</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="preprocessor">#define DNS_PTR 2</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="preprocessor">#define DNS_IPv6_AAAA 3</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="preprocessor">#define DNS_CNAME 4</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  </div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="dns_8h.html#af82856a398b08ac3a1bb2d540fa9c742"> 188</a></span> <span class="preprocessor">#define DNS_QUERY_NO_SEARCH 0x01</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"><a class="line" href="dns_8h.html#a14fa571999c82d15277b253806d2fbdc"> 190</a></span> <span class="preprocessor">#define DNS_QUERY_USEVC 0x02</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  </div>
<div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="dns_8h.html#a9c15b7447c0ed1c0966ecce97317266c"> 192</a></span> <span class="preprocessor">#define DNS_QUERY_IGNTC 0x04</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"><a class="line" href="dns_8h.html#ae6bc56fee95d5e87a19e8660738b81d2"> 194</a></span> <span class="preprocessor">#define DNS_CNAME_CALLBACK 0x80</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">/* Allow searching */</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor">#define DNS_OPTION_SEARCH 1</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment">/* Parse "nameserver" and add default if no such section */</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">#define DNS_OPTION_NAMESERVERS 2</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment">/* Parse additional options like:</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * - timeout:</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> * - getaddrinfo-allow-skew:</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> * - max-timeouts:</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> * - max-inflight:</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"> * - attempts:</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> * - randomize-case:</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> * - initial-probe-timeout:</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * - max-probe-timeout:</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> * - probe-backoff-factor:</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * - tcp-idle-timeout:</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * - edns-udp-size:</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * - use-vc</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> * - ignore-tc</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="preprocessor">#define DNS_OPTION_MISC 4</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">/* Load hosts file (i.e. "/etc/hosts") */</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor">#define DNS_OPTION_HOSTSFILE 8</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  </div>
<div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="dns_8h.html#a417f74bbbbd887a84d911ed9dc7ce3ae"> 225</a></span> <span class="preprocessor">#define DNS_OPTIONS_ALL ( \</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor"> DNS_OPTION_SEARCH | \</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor"> DNS_OPTION_NAMESERVERS | \</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="preprocessor"> DNS_OPTION_MISC | \</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor"> DNS_OPTION_HOSTSFILE | \</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="preprocessor"> 0 \</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor">)</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">/* Do not "default" nameserver (i.e. "127.0.0.1:53") if there is no nameservers</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> * in resolv.conf, (iff DNS_OPTION_NAMESERVERS is set) */</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor">#define DNS_OPTION_NAMESERVERS_NO_DEFAULT 16</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">/* Obsolete name for DNS_QUERY_NO_SEARCH */</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor">#define DNS_NO_SEARCH DNS_QUERY_NO_SEARCH</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div>
<div class="line"><a name="l00249"></a><span class="lineno"><a class="line" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556"> 249</a></span> <span class="keyword">typedef</span> void (*<a class="code" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a>) (<span class="keywordtype">int</span> result, <span class="keywordtype">char</span> type, <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> ttl, <span class="keywordtype">void</span> *addresses, <span class="keywordtype">void</span> *arg);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  </div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">struct </span>evdns_base;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="keyword">struct </span><a class="code" href="structevent__base.html">event_base</a>;</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  </div>
<div class="line"><a name="l00255"></a><span class="lineno"><a class="line" href="dns_8h.html#a1cbcfe6baf59913c34aa04e57637da3d"> 255</a></span> <span class="preprocessor">#define EVDNS_BASE_INITIALIZE_NAMESERVERS 1</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  </div>
<div class="line"><a name="l00258"></a><span class="lineno"><a class="line" href="dns_8h.html#a865ae03fdd5198a182e6c4c322f56f8d"> 258</a></span> <span class="preprocessor">#define EVDNS_BASE_NO_CACHE 0x10</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  </div>
<div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="dns_8h.html#ad676c79dfd2107701961fe2b269dcfd8"> 261</a></span> <span class="preprocessor">#define EVDNS_BASE_DISABLE_WHEN_INACTIVE 0x8000</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  </div>
<div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="dns_8h.html#a548a0e3529efb572b991408f7581a09b"> 265</a></span> <span class="preprocessor">#define EVDNS_BASE_NAMESERVERS_NO_DEFAULT 0x10000</span></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="comment">/* No errors */</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor">#define EVDNS_ERROR_NONE 0</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment">/* Failed to open file */</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="preprocessor">#define EVDNS_ERROR_FAILED_TO_OPEN_FILE 1</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment">/* Failed to stat file */</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor">#define EVDNS_ERROR_FAILED_TO_STAT_FILE 2</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">/* File too large */</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor">#define EVDNS_ERROR_FILE_TOO_LARGE 3</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">/* Out of memory */</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="preprocessor">#define EVDNS_ERROR_OUT_OF_MEMORY 4</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">/* Short read from file */</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="preprocessor">#define EVDNS_ERROR_SHORT_READ_FROM_FILE 5</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">/* No nameservers configured */</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="preprocessor">#define EVDNS_ERROR_NO_NAMESERVERS_CONFIGURED 6</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  </div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="keyword">struct </span>evdns_base * <a class="code" href="dns_8h.html#afdcc359c412591d174f4d965afd18513">evdns_base_new</a>(<span class="keyword">struct</span> <a class="code" href="structevent__base.html">event_base</a> *<a class="code" href="structevent__base.html">event_base</a>, <span class="keywordtype">int</span> flags);</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  </div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#ab221bbadb18451c9007e8dc98bc97786">evdns_base_free</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keywordtype">int</span> fail_requests);</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a1875001046dd6cbff5f2139590221ddf">evdns_base_clear_host_addresses</a>(<span class="keyword">struct</span> evdns_base *base);</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#ac969fd31d17e59ad072be79a591d5224">evdns_cache_write</a>(<span class="keyword">struct</span> evdns_base *dns_base, <span class="keywordtype">char</span> *nodename, <span class="keyword">struct</span> <a class="code" href="structevutil__addrinfo.html">evutil_addrinfo</a> *res, <span class="keywordtype">int</span> ttl);</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#abdb3c829da1d539ecdf92ae47f8f1c03">evdns_cache_lookup</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *nodename, <span class="keyword">struct</span> <a class="code" href="structevutil__addrinfo.html">evutil_addrinfo</a> *hints, ev_uint16_t port, <span class="keyword">struct</span> <a class="code" href="structevutil__addrinfo.html">evutil_addrinfo</a> **res);</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  </div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="dns_8h.html#a24bb4cf48915f73e4e9c6d4b6216466b">evdns_err_to_string</a>(<span class="keywordtype">int</span> err);</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  </div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a53a242ec2ab15eef9e49e4286153d55a">evdns_base_nameserver_add</a>(<span class="keyword">struct</span> evdns_base *base,</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span> address);</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a6811354521b4fe8df4c724d6cb9fb102">evdns_base_count_nameservers</a>(<span class="keyword">struct</span> evdns_base *base);</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  </div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#af942ce8b6a65052f4b6def91a3390a61">evdns_base_clear_nameservers_and_suspend</a>(<span class="keyword">struct</span> evdns_base *base);</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="l00410"></a><span class="lineno"> 410</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a3ef3a20dd645e02d6dd5d3766ced9ce7">evdns_base_resume</a>(<span class="keyword">struct</span> evdns_base *base);</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  </div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a0a5f8e71a80a41d10e386f8cac816238">evdns_base_nameserver_ip_add</a>(<span class="keyword">struct</span> evdns_base *base,</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *ip_as_string);</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  </div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <a class="code" href="dns_8h.html#ac8feac209d81aea2654809727ee7ada7">evdns_base_nameserver_sockaddr_add</a>(<span class="keyword">struct</span> evdns_base *base,</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keyword">const</span> <span class="keyword">struct</span> sockaddr *sa, ev_socklen_t len, <span class="keywordtype">unsigned</span> flags);</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="keyword">struct </span>evdns_request;</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  </div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="keyword">struct </span>evdns_request *<a class="code" href="dns_8h.html#a4f8b11705fa285dffa661c7f55f86693">evdns_base_resolve_ipv4</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> flags, <a class="code" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a> callback, <span class="keywordtype">void</span> *ptr);</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  </div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="keyword">struct </span>evdns_request *<a class="code" href="dns_8h.html#a646ca1414b09b9fec7763bf8aca05e74">evdns_base_resolve_ipv6</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> flags, <a class="code" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a> callback, <span class="keywordtype">void</span> *ptr);</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  </div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="keyword">struct </span>in_addr;</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="keyword">struct </span>in6_addr;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  </div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="keyword">struct </span>evdns_request *<a class="code" href="dns_8h.html#a1f9cbcd4c017180e7d302056b3d5bbd4">evdns_base_resolve_reverse</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keyword">struct</span> in_addr *in, <span class="keywordtype">int</span> flags, <a class="code" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a> callback, <span class="keywordtype">void</span> *ptr);</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  </div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="keyword">struct </span>evdns_request *<a class="code" href="dns_8h.html#a55843d1e90512bfbe8499d52642240cd">evdns_base_resolve_reverse_ipv6</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keyword">struct</span> in6_addr *in, <span class="keywordtype">int</span> flags, <a class="code" href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a> callback, <span class="keywordtype">void</span> *ptr);</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  </div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a062bdd01f7243b3c8509d93c45a802ef">evdns_cancel_request</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">struct</span> evdns_request *req);</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  </div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a791b6fdc9f41bd62414574d85ae18cc8">evdns_base_set_option</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *option, <span class="keyword">const</span> <span class="keywordtype">char</span> *val);</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  </div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  </div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a7e3a053e25ae7c045944a5db0947babb">evdns_base_resolv_conf_parse</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keywordtype">int</span> flags, <span class="keyword">const</span> <span class="keywordtype">char</span> *<span class="keyword">const</span> filename);</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  </div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a5092d38082851904e37d6b80c3475714">evdns_base_load_hosts</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *hosts_fname);</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  </div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="preprocessor">#if defined(EVENT_IN_DOXYGEN_) || defined(_WIN32)</span></div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  </div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#ac287c8b638a248719a00b0324579b728">evdns_base_config_windows_nameservers</a>(<span class="keyword">struct</span> evdns_base *);</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="preprocessor">#define EVDNS_BASE_CONFIG_WINDOWS_NAMESERVERS_IMPLEMENTED</span></div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  </div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  </div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a9211bdca966e8f4ce3270b29c1d72122">evdns_base_search_clear</a>(<span class="keyword">struct</span> evdns_base *base);</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  </div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  </div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a8044de93700190d5ca6a6a0becdc4f6e">evdns_base_search_add</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">char</span> *domain);</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  </div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  </div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#ae858583b1c9fdd1f7c99330bcdd68ba6">evdns_base_search_ndots_set</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keyword">const</span> <span class="keywordtype">int</span> ndots);</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  </div>
<div class="line"><a name="l00641"></a><span class="lineno"><a class="line" href="dns_8h.html#a850904a1dbd8c8a087dc2be7617e21c8"> 641</a></span> <span class="keyword">typedef</span> void (*<a class="code" href="dns_8h.html#a850904a1dbd8c8a087dc2be7617e21c8">evdns_debug_log_fn_type</a>)(<span class="keywordtype">int</span> is_warning, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg);</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  </div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  </div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#af2ba90756cecdc246711879462a20b51">evdns_set_log_fn</a>(<a class="code" href="dns_8h.html#a850904a1dbd8c8a087dc2be7617e21c8">evdns_debug_log_fn_type</a> fn);</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  </div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="comment"> * Functions used to implement a DNS server.</span></div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  </div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="keyword">struct </span>evdns_server_request;</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="keyword">struct </span>evdns_server_question;</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  </div>
<div class="line"><a name="l00672"></a><span class="lineno"><a class="line" href="dns_8h.html#a052802966f4c9d482279a05197dff005"> 672</a></span> <span class="keyword">typedef</span> void (*<a class="code" href="dns_8h.html#a052802966f4c9d482279a05197dff005">evdns_request_callback_fn_type</a>)(<span class="keyword">struct </span>evdns_server_request *, <span class="keywordtype">void</span> *);</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="preprocessor">#define EVDNS_ANSWER_SECTION 0</span></div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="preprocessor">#define EVDNS_AUTHORITY_SECTION 1</span></div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor">#define EVDNS_ADDITIONAL_SECTION 2</span></div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  </div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="preprocessor">#define EVDNS_TYPE_A 1</span></div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="preprocessor">#define EVDNS_TYPE_NS 2</span></div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="preprocessor">#define EVDNS_TYPE_CNAME 5</span></div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="preprocessor">#define EVDNS_TYPE_SOA 6</span></div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="preprocessor">#define EVDNS_TYPE_PTR 12</span></div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="preprocessor">#define EVDNS_TYPE_MX 15</span></div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="preprocessor">#define EVDNS_TYPE_TXT 16</span></div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="preprocessor">#define EVDNS_TYPE_AAAA 28</span></div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  </div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="preprocessor">#define EVDNS_QTYPE_AXFR 252</span></div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="preprocessor">#define EVDNS_QTYPE_ALL 255</span></div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  </div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="preprocessor">#define EVDNS_CLASS_INET 1</span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  </div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment">/* flags that can be set in answers; as part of the err parameter */</span></div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="preprocessor">#define EVDNS_FLAGS_AA 0x400</span></div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="preprocessor">#define EVDNS_FLAGS_RD 0x080</span></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  </div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="keyword">struct </span>evdns_server_port *<a class="code" href="dns_8h.html#ad6a51e72173fcb3df380a49e8589635b">evdns_add_server_port_with_base</a>(<span class="keyword">struct</span> <a class="code" href="structevent__base.html">event_base</a> *base, <a class="code" href="util_8h.html#a7ef0023565082a65020f6e56be59fd0b">evutil_socket_t</a> socket, <span class="keywordtype">int</span> flags, <a class="code" href="dns_8h.html#a052802966f4c9d482279a05197dff005">evdns_request_callback_fn_type</a> callback, <span class="keywordtype">void</span> *user_data);</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  </div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="keyword">struct </span>evconnlistener;</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  </div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="keyword">struct </span>evdns_server_port *<a class="code" href="dns_8h.html#ac44ddac0711712a5e3f7ec041c8d2478">evdns_add_server_port_with_listener</a>(</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keyword">struct</span> <a class="code" href="structevent__base.html">event_base</a> *base, <span class="keyword">struct</span> evconnlistener *listener, <span class="keywordtype">int</span> flags,</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <a class="code" href="dns_8h.html#a052802966f4c9d482279a05197dff005">evdns_request_callback_fn_type</a> callback, <span class="keywordtype">void</span> *user_data);</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  </div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#abbd56ab78c400f46498515330343c66a">evdns_close_server_port</a>(<span class="keyword">struct</span> evdns_server_port *port);</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  </div>
<div class="line"><a name="l00736"></a><span class="lineno"><a class="line" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473"> 736</a></span> <span class="keyword">enum</span> <a class="code" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473">evdns_server_option</a> {</div>
<div class="line"><a name="l00741"></a><span class="lineno"><a class="line" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a8943e341547a0479f14a9c4de889217d"> 741</a></span>  <a class="code" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a8943e341547a0479f14a9c4de889217d">EVDNS_SOPT_TCP_MAX_CLIENTS</a>,</div>
<div class="line"><a name="l00748"></a><span class="lineno"><a class="line" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a6363f0c18c4efaff4d00b27ced12e92b"> 748</a></span>  <a class="code" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a6363f0c18c4efaff4d00b27ced12e92b">EVDNS_SOPT_TCP_IDLE_TIMEOUT</a>,</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span> };</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  </div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#afdb5e0e7000a17810e762d40ecb8eda2">evdns_server_port_set_option</a>(<span class="keyword">struct</span> evdns_server_port *port, <span class="keyword">enum</span> <a class="code" href="dns_8h.html#a626139345ff6cb6c871e2950872e8473">evdns_server_option</a> option, <span class="keywordtype">size_t</span> value);</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  </div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a849622fc8fee97302a6a0a34e7e6feb8">evdns_server_request_set_flags</a>(<span class="keyword">struct</span> evdns_server_request *req, <span class="keywordtype">int</span> flags);</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  </div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span> <span class="comment">/* Functions to add an answer to an in-progress DNS reply.</span></div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="keywordtype">int</span> evdns_server_request_add_reply(<span class="keyword">struct</span> evdns_server_request *req, <span class="keywordtype">int</span> section, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> type, <span class="keywordtype">int</span> dns_class, <span class="keywordtype">int</span> ttl, <span class="keywordtype">int</span> datalen, <span class="keywordtype">int</span> is_name, <span class="keyword">const</span> <span class="keywordtype">char</span> *data);</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="keywordtype">int</span> evdns_server_request_add_a_reply(<span class="keyword">struct</span> evdns_server_request *req, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> n, <span class="keyword">const</span> <span class="keywordtype">void</span> *addrs, <span class="keywordtype">int</span> ttl);</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span> <span class="keywordtype">int</span> evdns_server_request_add_aaaa_reply(<span class="keyword">struct</span> evdns_server_request *req, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> n, <span class="keyword">const</span> <span class="keywordtype">void</span> *addrs, <span class="keywordtype">int</span> ttl);</div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="keywordtype">int</span> evdns_server_request_add_ptr_reply(<span class="keyword">struct</span> evdns_server_request *req, <span class="keyword">struct</span> in_addr *in, <span class="keyword">const</span> <span class="keywordtype">char</span> *inaddr_name, <span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <span class="keywordtype">int</span> ttl);</div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> <span class="keywordtype">int</span> evdns_server_request_add_cname_reply(<span class="keyword">struct</span> evdns_server_request *req, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> <span class="keywordtype">char</span> *cname, <span class="keywordtype">int</span> ttl);</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  </div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a606b067e5cd3fee40b527b3cb4ec2d72">evdns_server_request_respond</a>(<span class="keyword">struct</span> evdns_server_request *req, <span class="keywordtype">int</span> err);</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a1291ec11bf79809c4ae1b113bb0160e9">evdns_server_request_drop</a>(<span class="keyword">struct</span> evdns_server_request *req);</div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span> <span class="keyword">struct </span>sockaddr;</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a078ce45f71d886514ece8688e19ead19">evdns_server_request_get_requesting_addr</a>(<span class="keyword">struct</span> evdns_server_request *req, <span class="keyword">struct</span> sockaddr *sa, <span class="keywordtype">int</span> addr_len);</div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  </div>
<div class="line"><a name="l00799"></a><span class="lineno"><a class="line" href="dns_8h.html#a0d1464f191ef7678be0d4caf3644a8f4"> 799</a></span> <span class="keyword">typedef</span> void (*<a class="code" href="dns_8h.html#a0d1464f191ef7678be0d4caf3644a8f4">evdns_getaddrinfo_cb</a>)(<span class="keywordtype">int</span> result, <span class="keyword">struct </span><a class="code" href="structevutil__addrinfo.html">evutil_addrinfo</a> *res, <span class="keywordtype">void</span> *arg);</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  </div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span> <span class="keyword">struct </span>evdns_base;</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span> <span class="keyword">struct </span>evdns_getaddrinfo_request;</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> <span class="keyword">struct </span>evdns_getaddrinfo_request *<a class="code" href="dns_8h.html#a28a4c5e6e22bcf92f8c229461023f914">evdns_getaddrinfo</a>(</div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="keyword">struct</span> evdns_base *dns_base,</div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *nodename, <span class="keyword">const</span> <span class="keywordtype">char</span> *servname,</div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structevutil__addrinfo.html">evutil_addrinfo</a> *hints_in,</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <a class="code" href="dns_8h.html#a0d1464f191ef7678be0d4caf3644a8f4">evdns_getaddrinfo_cb</a> cb, <span class="keywordtype">void</span> *arg);</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  </div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> <span class="comment">/* Cancel an in-progress evdns_getaddrinfo. This MUST NOT be called after the</span></div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span> <span class="comment"> * getaddrinfo's callback has been invoked. The resolves will be canceled,</span></div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="comment"> * and the callback will be invoked with the error EVUTIL_EAI_CANCEL. */</span></div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="keywordtype">void</span> evdns_getaddrinfo_cancel(<span class="keyword">struct</span> evdns_getaddrinfo_request *req);</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  </div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a1545f7930f228018a06476a7236bfe0e">evdns_base_get_nameserver_addr</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keywordtype">int</span> idx,</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keyword">struct</span> sockaddr *sa, ev_socklen_t len);</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  </div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span> EVENT2_EXPORT_SYMBOL</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a954ffdf37038dba334543f6013d6a87f">evdns_base_get_nameserver_fd</a>(<span class="keyword">struct</span> evdns_base *base, <span class="keywordtype">int</span> idx);</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  </div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span> }</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  </div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span> <span class="preprocessor">#endif </span><span class="comment">/* !EVENT2_DNS_H_INCLUDED_ */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="adns_8h_html_ac8feac209d81aea2654809727ee7ada7"><div class="ttname"><a href="dns_8h.html#ac8feac209d81aea2654809727ee7ada7">evdns_base_nameserver_sockaddr_add</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_nameserver_sockaddr_add(struct evdns_base *base, const struct sockaddr *sa, ev_socklen_t len, unsigned flags)</div><div class="ttdoc">Add a nameserver by sockaddr.</div></div>
<div class="ttc" id="adns_8h_html_a078ce45f71d886514ece8688e19ead19"><div class="ttname"><a href="dns_8h.html#a078ce45f71d886514ece8688e19ead19">evdns_server_request_get_requesting_addr</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_server_request_get_requesting_addr(struct evdns_server_request *req, struct sockaddr *sa, int addr_len)</div><div class="ttdoc">Get the address that made a DNS request.</div></div>
<div class="ttc" id="adns_8h_html_a0d1464f191ef7678be0d4caf3644a8f4"><div class="ttname"><a href="dns_8h.html#a0d1464f191ef7678be0d4caf3644a8f4">evdns_getaddrinfo_cb</a></div><div class="ttdeci">void(* evdns_getaddrinfo_cb)(int result, struct evutil_addrinfo *res, void *arg)</div><div class="ttdoc">Callback for evdns_getaddrinfo.</div><div class="ttdef"><b>Definition:</b> dns.h:799</div></div>
<div class="ttc" id="adns_8h_html_a3ef3a20dd645e02d6dd5d3766ced9ce7"><div class="ttname"><a href="dns_8h.html#a3ef3a20dd645e02d6dd5d3766ced9ce7">evdns_base_resume</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_resume(struct evdns_base *base)</div><div class="ttdoc">Resume normal operation and continue any suspended resolve requests.</div></div>
<div class="ttc" id="adns_8h_html_abbd56ab78c400f46498515330343c66a"><div class="ttname"><a href="dns_8h.html#abbd56ab78c400f46498515330343c66a">evdns_close_server_port</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_close_server_port(struct evdns_server_port *port)</div><div class="ttdoc">Close down a DNS server port, and free associated structures.</div></div>
<div class="ttc" id="adns_8h_html_a850904a1dbd8c8a087dc2be7617e21c8"><div class="ttname"><a href="dns_8h.html#a850904a1dbd8c8a087dc2be7617e21c8">evdns_debug_log_fn_type</a></div><div class="ttdeci">void(* evdns_debug_log_fn_type)(int is_warning, const char *msg)</div><div class="ttdoc">A callback that is invoked when a log message is generated.</div><div class="ttdef"><b>Definition:</b> dns.h:641</div></div>
<div class="ttc" id="adns_8h_html_a1545f7930f228018a06476a7236bfe0e"><div class="ttname"><a href="dns_8h.html#a1545f7930f228018a06476a7236bfe0e">evdns_base_get_nameserver_addr</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_get_nameserver_addr(struct evdns_base *base, int idx, struct sockaddr *sa, ev_socklen_t len)</div><div class="ttdoc">Retrieve the address of the 'idx'th configured nameserver.</div></div>
<div class="ttc" id="adns_8h_html_a606b067e5cd3fee40b527b3cb4ec2d72"><div class="ttname"><a href="dns_8h.html#a606b067e5cd3fee40b527b3cb4ec2d72">evdns_server_request_respond</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_server_request_respond(struct evdns_server_request *req, int err)</div><div class="ttdoc">Send back a response to a DNS request, and free the request structure.</div></div>
<div class="ttc" id="adns_8h_html_a626139345ff6cb6c871e2950872e8473"><div class="ttname"><a href="dns_8h.html#a626139345ff6cb6c871e2950872e8473">evdns_server_option</a></div><div class="ttdeci">evdns_server_option</div><div class="ttdoc">List of configurable evdns_server_port options.</div><div class="ttdef"><b>Definition:</b> dns.h:736</div></div>
<div class="ttc" id="adns_8h_html_a1875001046dd6cbff5f2139590221ddf"><div class="ttname"><a href="dns_8h.html#a1875001046dd6cbff5f2139590221ddf">evdns_base_clear_host_addresses</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_base_clear_host_addresses(struct evdns_base *base)</div><div class="ttdoc">Remove all hosts entries that have been loaded into the event_base via evdns_base_load_hosts or via e...</div></div>
<div class="ttc" id="adns_8h_html_a4f8b11705fa285dffa661c7f55f86693"><div class="ttname"><a href="dns_8h.html#a4f8b11705fa285dffa661c7f55f86693">evdns_base_resolve_ipv4</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_request * evdns_base_resolve_ipv4(struct evdns_base *base, const char *name, int flags, evdns_callback_type callback, void *ptr)</div><div class="ttdoc">Lookup an A record for a given name.</div></div>
<div class="ttc" id="adns_8h_html_a1291ec11bf79809c4ae1b113bb0160e9"><div class="ttname"><a href="dns_8h.html#a1291ec11bf79809c4ae1b113bb0160e9">evdns_server_request_drop</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_server_request_drop(struct evdns_server_request *req)</div><div class="ttdoc">Free a DNS request without sending back a reply.</div></div>
<div class="ttc" id="astructevent__base_html"><div class="ttname"><a href="structevent__base.html">event_base</a></div><div class="ttdoc">Structure to hold information and state for a Libevent dispatch loop.</div><div class="ttdef"><b>Definition:</b> event.h:219</div></div>
<div class="ttc" id="adns_8h_html_ac969fd31d17e59ad072be79a591d5224"><div class="ttname"><a href="dns_8h.html#ac969fd31d17e59ad072be79a591d5224">evdns_cache_write</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_cache_write(struct evdns_base *dns_base, char *nodename, struct evutil_addrinfo *res, int ttl)</div><div class="ttdoc">Write an entry to the evdns cache.</div></div>
<div class="ttc" id="adns_8h_html_a626139345ff6cb6c871e2950872e8473a8943e341547a0479f14a9c4de889217d"><div class="ttname"><a href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a8943e341547a0479f14a9c4de889217d">EVDNS_SOPT_TCP_MAX_CLIENTS</a></div><div class="ttdeci">@ EVDNS_SOPT_TCP_MAX_CLIENTS</div><div class="ttdoc">Maximum number of simultaneous tcp connections (clients) that server can hold.</div><div class="ttdef"><b>Definition:</b> dns.h:741</div></div>
<div class="ttc" id="adns_8h_html_a646ca1414b09b9fec7763bf8aca05e74"><div class="ttname"><a href="dns_8h.html#a646ca1414b09b9fec7763bf8aca05e74">evdns_base_resolve_ipv6</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_request * evdns_base_resolve_ipv6(struct evdns_base *base, const char *name, int flags, evdns_callback_type callback, void *ptr)</div><div class="ttdoc">Lookup an AAAA record for a given name.</div></div>
<div class="ttc" id="adns_8h_html_a5092d38082851904e37d6b80c3475714"><div class="ttname"><a href="dns_8h.html#a5092d38082851904e37d6b80c3475714">evdns_base_load_hosts</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_load_hosts(struct evdns_base *base, const char *hosts_fname)</div><div class="ttdoc">Load an /etc/hosts-style file from 'hosts_fname' into 'base'.</div></div>
<div class="ttc" id="adns_8h_html_a954ffdf37038dba334543f6013d6a87f"><div class="ttname"><a href="dns_8h.html#a954ffdf37038dba334543f6013d6a87f">evdns_base_get_nameserver_fd</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_get_nameserver_fd(struct evdns_base *base, int idx)</div><div class="ttdoc">Retrieve the fd of the 'idx'th configured nameserver.</div></div>
<div class="ttc" id="adns_8h_html_ae858583b1c9fdd1f7c99330bcdd68ba6"><div class="ttname"><a href="dns_8h.html#ae858583b1c9fdd1f7c99330bcdd68ba6">evdns_base_search_ndots_set</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_base_search_ndots_set(struct evdns_base *base, const int ndots)</div><div class="ttdoc">Set the 'ndots' parameter for searches.</div></div>
<div class="ttc" id="adns_8h_html_a062bdd01f7243b3c8509d93c45a802ef"><div class="ttname"><a href="dns_8h.html#a062bdd01f7243b3c8509d93c45a802ef">evdns_cancel_request</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_cancel_request(struct evdns_base *base, struct evdns_request *req)</div><div class="ttdoc">Cancels a pending DNS resolution request.</div></div>
<div class="ttc" id="adns_8h_html_abdb3c829da1d539ecdf92ae47f8f1c03"><div class="ttname"><a href="dns_8h.html#abdb3c829da1d539ecdf92ae47f8f1c03">evdns_cache_lookup</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_cache_lookup(struct evdns_base *base, const char *nodename, struct evutil_addrinfo *hints, ev_uint16_t port, struct evutil_addrinfo **res)</div><div class="ttdoc">Lookup an entry from the evdns cache.</div></div>
<div class="ttc" id="adns_8h_html_a9211bdca966e8f4ce3270b29c1d72122"><div class="ttname"><a href="dns_8h.html#a9211bdca966e8f4ce3270b29c1d72122">evdns_base_search_clear</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_base_search_clear(struct evdns_base *base)</div><div class="ttdoc">Clear the list of search domains.</div></div>
<div class="ttc" id="adns_8h_html_a1f9cbcd4c017180e7d302056b3d5bbd4"><div class="ttname"><a href="dns_8h.html#a1f9cbcd4c017180e7d302056b3d5bbd4">evdns_base_resolve_reverse</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_request * evdns_base_resolve_reverse(struct evdns_base *base, const struct in_addr *in, int flags, evdns_callback_type callback, void *ptr)</div><div class="ttdoc">Lookup a PTR record for a given IP address.</div></div>
<div class="ttc" id="adns_8h_html_a7e3a053e25ae7c045944a5db0947babb"><div class="ttname"><a href="dns_8h.html#a7e3a053e25ae7c045944a5db0947babb">evdns_base_resolv_conf_parse</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_resolv_conf_parse(struct evdns_base *base, int flags, const char *const filename)</div><div class="ttdoc">Parse a resolv.conf file.</div></div>
<div class="ttc" id="adns_8h_html_ab221bbadb18451c9007e8dc98bc97786"><div class="ttname"><a href="dns_8h.html#ab221bbadb18451c9007e8dc98bc97786">evdns_base_free</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_base_free(struct evdns_base *base, int fail_requests)</div><div class="ttdoc">Shut down the asynchronous DNS resolver and terminate all active requests.</div></div>
<div class="ttc" id="adns_8h_html_a626139345ff6cb6c871e2950872e8473a6363f0c18c4efaff4d00b27ced12e92b"><div class="ttname"><a href="dns_8h.html#a626139345ff6cb6c871e2950872e8473a6363f0c18c4efaff4d00b27ced12e92b">EVDNS_SOPT_TCP_IDLE_TIMEOUT</a></div><div class="ttdeci">@ EVDNS_SOPT_TCP_IDLE_TIMEOUT</div><div class="ttdoc">Idle timeout (in seconds) of incoming TCP connections.</div><div class="ttdef"><b>Definition:</b> dns.h:748</div></div>
<div class="ttc" id="adns_8h_html_ad6a51e72173fcb3df380a49e8589635b"><div class="ttname"><a href="dns_8h.html#ad6a51e72173fcb3df380a49e8589635b">evdns_add_server_port_with_base</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_server_port * evdns_add_server_port_with_base(struct event_base *base, evutil_socket_t socket, int flags, evdns_request_callback_fn_type callback, void *user_data)</div><div class="ttdoc">Create a new UDP DNS server port.</div></div>
<div class="ttc" id="adns_8h_html_a052802966f4c9d482279a05197dff005"><div class="ttname"><a href="dns_8h.html#a052802966f4c9d482279a05197dff005">evdns_request_callback_fn_type</a></div><div class="ttdeci">void(* evdns_request_callback_fn_type)(struct evdns_server_request *, void *)</div><div class="ttdoc">A callback to implement a DNS server.</div><div class="ttdef"><b>Definition:</b> dns.h:672</div></div>
<div class="ttc" id="adns_8h_html_a55843d1e90512bfbe8499d52642240cd"><div class="ttname"><a href="dns_8h.html#a55843d1e90512bfbe8499d52642240cd">evdns_base_resolve_reverse_ipv6</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_request * evdns_base_resolve_reverse_ipv6(struct evdns_base *base, const struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr)</div><div class="ttdoc">Lookup a PTR record for a given IPv6 address.</div></div>
<div class="ttc" id="adns_8h_html_af2ba90756cecdc246711879462a20b51"><div class="ttname"><a href="dns_8h.html#af2ba90756cecdc246711879462a20b51">evdns_set_log_fn</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_set_log_fn(evdns_debug_log_fn_type fn)</div><div class="ttdoc">Set the callback function to handle DNS log messages.</div></div>
<div class="ttc" id="adns_8h_html_a43018959c4be1a9b16e4143c5e3ff556"><div class="ttname"><a href="dns_8h.html#a43018959c4be1a9b16e4143c5e3ff556">evdns_callback_type</a></div><div class="ttdeci">void(* evdns_callback_type)(int result, char type, int count, int ttl, void *addresses, void *arg)</div><div class="ttdoc">The callback that contains the results from a lookup.</div><div class="ttdef"><b>Definition:</b> dns.h:249</div></div>
<div class="ttc" id="adns_8h_html_ac44ddac0711712a5e3f7ec041c8d2478"><div class="ttname"><a href="dns_8h.html#ac44ddac0711712a5e3f7ec041c8d2478">evdns_add_server_port_with_listener</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_server_port * evdns_add_server_port_with_listener(struct event_base *base, struct evconnlistener *listener, int flags, evdns_request_callback_fn_type callback, void *user_data)</div><div class="ttdoc">Create a new TCP DNS server port.</div></div>
<div class="ttc" id="adns_8h_html_ac287c8b638a248719a00b0324579b728"><div class="ttname"><a href="dns_8h.html#ac287c8b638a248719a00b0324579b728">evdns_base_config_windows_nameservers</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_config_windows_nameservers(struct evdns_base *)</div><div class="ttdoc">Obtain nameserver information using the Windows API.</div></div>
<div class="ttc" id="adns_8h_html_a0a5f8e71a80a41d10e386f8cac816238"><div class="ttname"><a href="dns_8h.html#a0a5f8e71a80a41d10e386f8cac816238">evdns_base_nameserver_ip_add</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_nameserver_ip_add(struct evdns_base *base, const char *ip_as_string)</div><div class="ttdoc">Add a nameserver by string address.</div></div>
<div class="ttc" id="adns_8h_html_a28a4c5e6e22bcf92f8c229461023f914"><div class="ttname"><a href="dns_8h.html#a28a4c5e6e22bcf92f8c229461023f914">evdns_getaddrinfo</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_getaddrinfo_request * evdns_getaddrinfo(struct evdns_base *dns_base, const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, evdns_getaddrinfo_cb cb, void *arg)</div><div class="ttdoc">Make a non-blocking getaddrinfo request using the dns_base in 'dns_base'.</div></div>
<div class="ttc" id="adns_8h_html_afdcc359c412591d174f4d965afd18513"><div class="ttname"><a href="dns_8h.html#afdcc359c412591d174f4d965afd18513">evdns_base_new</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL struct evdns_base * evdns_base_new(struct event_base *event_base, int flags)</div><div class="ttdoc">Initialize the asynchronous DNS library.</div></div>
<div class="ttc" id="adns_8h_html_a8044de93700190d5ca6a6a0becdc4f6e"><div class="ttname"><a href="dns_8h.html#a8044de93700190d5ca6a6a0becdc4f6e">evdns_base_search_add</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_base_search_add(struct evdns_base *base, const char *domain)</div><div class="ttdoc">Add a domain to the list of search domains.</div></div>
<div class="ttc" id="adns_8h_html_a791b6fdc9f41bd62414574d85ae18cc8"><div class="ttname"><a href="dns_8h.html#a791b6fdc9f41bd62414574d85ae18cc8">evdns_base_set_option</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_set_option(struct evdns_base *base, const char *option, const char *val)</div><div class="ttdoc">Set the value of a configuration option.</div></div>
<div class="ttc" id="autil_8h_html"><div class="ttname"><a href="util_8h.html">util.h</a></div><div class="ttdoc">Common convenience functions for cross-platform portability and related socket manipulations.</div></div>
<div class="ttc" id="adns_8h_html_a24bb4cf48915f73e4e9c6d4b6216466b"><div class="ttname"><a href="dns_8h.html#a24bb4cf48915f73e4e9c6d4b6216466b">evdns_err_to_string</a></div><div class="ttdeci">const EVENT2_EXPORT_SYMBOL char * evdns_err_to_string(int err)</div><div class="ttdoc">Convert a DNS error code to a string.</div></div>
<div class="ttc" id="adns_8h_html_a53a242ec2ab15eef9e49e4286153d55a"><div class="ttname"><a href="dns_8h.html#a53a242ec2ab15eef9e49e4286153d55a">evdns_base_nameserver_add</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_nameserver_add(struct evdns_base *base, unsigned long int address)</div><div class="ttdoc">Add a nameserver.</div></div>
<div class="ttc" id="astructevutil__addrinfo_html"><div class="ttname"><a href="structevutil__addrinfo.html">evutil_addrinfo</a></div><div class="ttdoc">A definition of struct addrinfo for systems that lack it.</div><div class="ttdef"><b>Definition:</b> util.h:731</div></div>
<div class="ttc" id="adns_8h_html_a6811354521b4fe8df4c724d6cb9fb102"><div class="ttname"><a href="dns_8h.html#a6811354521b4fe8df4c724d6cb9fb102">evdns_base_count_nameservers</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_count_nameservers(struct evdns_base *base)</div><div class="ttdoc">Get the number of configured nameservers.</div></div>
<div class="ttc" id="adns_8h_html_a849622fc8fee97302a6a0a34e7e6feb8"><div class="ttname"><a href="dns_8h.html#a849622fc8fee97302a6a0a34e7e6feb8">evdns_server_request_set_flags</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL void evdns_server_request_set_flags(struct evdns_server_request *req, int flags)</div><div class="ttdoc">Sets some flags in a reply we're building.</div></div>
<div class="ttc" id="adns_8h_html_af942ce8b6a65052f4b6def91a3390a61"><div class="ttname"><a href="dns_8h.html#af942ce8b6a65052f4b6def91a3390a61">evdns_base_clear_nameservers_and_suspend</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_base_clear_nameservers_and_suspend(struct evdns_base *base)</div><div class="ttdoc">Remove all configured nameservers, and suspend all pending resolves.</div></div>
<div class="ttc" id="adns_8h_html_afdb5e0e7000a17810e762d40ecb8eda2"><div class="ttname"><a href="dns_8h.html#afdb5e0e7000a17810e762d40ecb8eda2">evdns_server_port_set_option</a></div><div class="ttdeci">EVENT2_EXPORT_SYMBOL int evdns_server_port_set_option(struct evdns_server_port *port, enum evdns_server_option option, size_t value)</div><div class="ttdoc">Configure DNS server.</div></div>
<div class="ttc" id="autil_8h_html_a7ef0023565082a65020f6e56be59fd0b"><div class="ttname"><a href="util_8h.html#a7ef0023565082a65020f6e56be59fd0b">evutil_socket_t</a></div><div class="ttdeci">#define evutil_socket_t</div><div class="ttdoc">A type wide enough to hold the output of "socket()" or "accept()".</div><div class="ttdef"><b>Definition:</b> util.h:325</div></div>
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