1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 2 "http://www.w3.org/TR/html4/loose.dtd"> 3<html><head> 4<title>CURLOPT_DNS_SERVERS man page</title> 5<meta name="generator" content="roffit"> 6<STYLE type="text/css"> 7P.level0 { 8 padding-left: 2em; 9} 10 11P.level1 { 12 padding-left: 4em; 13} 14 15P.level2 { 16 padding-left: 6em; 17} 18 19span.emphasis { 20 font-style: italic; 21} 22 23span.bold { 24 font-weight: bold; 25} 26 27span.manpage { 28 font-weight: bold; 29} 30 31h2.nroffsh { 32 background-color: #e0e0e0; 33} 34 35span.nroffip { 36 font-weight: bold; 37 font-size: 120%; 38 font-family: monospace; 39} 40 41p.roffit { 42 text-align: center; 43 font-size: 80%; 44} 45</STYLE> 46</head><body> 47 48<p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2> 49<p class="level0">CURLOPT_DNS_SERVERS - set preferred DNS servers <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2> 50<p class="level0">#include <curl/curl.h> 51<p class="level0">CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_SERVERS, char *servers); <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2> 52<p class="level0">Pass a char * that is the list of DNS servers to be used instead of the system default. The format of the dns servers option is: 53<p class="level0">host[:port][,host[:port]]... 54<p class="level0">For example: 55<p class="level0">192.168.1.100,192.168.1.101,3.4.5.6 <a name="DEFAULT"></a><h2 class="nroffsh">DEFAULT</h2> 56<p class="level0">NULL - use system default <a name="PROTOCOLS"></a><h2 class="nroffsh">PROTOCOLS</h2> 57<p class="level0">All <a name="EXAMPLE"></a><h2 class="nroffsh">EXAMPLE</h2> 58<p class="level0">TODO <a name="AVAILABILITY"></a><h2 class="nroffsh">AVAILABILITY</h2> 59<p class="level0">This option requires that libcurl was built with a resolver backend that supports this operation. The c-ares backend is the only such one. 60<p class="level0">Added in 7.24.0 <a name="RETURN"></a><h2 class="nroffsh">RETURN VALUE</h2> 61<p class="level0">Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, CURLE_NOT_BUILT_IN if support was disabled at compile-time, CURLE_BAD_FUNCTION_ARGUMENT when given an invalid server list, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. <a name="SEE"></a><h2 class="nroffsh">SEE ALSO</h2> 62<p class="level0"><a Class="manpage" href="/CURLOPT_DNS_LOCAL_IP4.html">CURLOPT_DNS_LOCAL_IP4</a> <a Class="manpage" href="/CURLOPT_DNS_CACHE_TIMEOUT.html">CURLOPT_DNS_CACHE_TIMEOUT</a> <span Class="manpage"> </span> <p class="roffit"> 63 This HTML page was made with <a href="http://daniel.haxx.se/projects/roffit/">roffit</a>. 64</body></html> 65