parallel-ref/mm-iot-sdk
1
0
Fork 0
mirror of https://github.com/buildwithparallel/mm-iot-sdk synced 2026-08-10 21:27:58 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
mm-iot-sdk/framework/doc/html/dns__client_8c_source.html
Morse Micro 4f4eb7fc7a Morse Micro MM-IoT-SDK release 2.9.7 
This commit introduces version 2.9.7 of the Morse Micro MM-IoT-SDK
for ARM microcontroller base platforms.
2025-10-04 02:04:28 +10:00

250 lines
29 KiB
HTML
Raw Permalink Blame History

<!-- HTML header for doxygen 1.8.17-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.9.4"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Morse Micro IoT SDK: dns_client.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="style.css" rel="stylesheet" type="text/css"/>
<link rel="shortcut icon" href="favicon.svg" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="logo.png"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Morse Micro IoT SDK
&#160;<span id="projectnumber">2.9.7</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.4 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search",'Search','.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(document).ready(function(){initNavTree('dns__client_8c_source.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle"><div class="title">dns_client.c</div></div>
</div><!--header-->
<div class="contents">
<a href="dns__client_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright 2023 Morse Micro</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * SPDX-License-Identifier: Apache-2.0</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> */</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include &quot;mmosal.h&quot;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include &quot;mmwlan.h&quot;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include &quot;mmconfig.h&quot;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include &quot;mmipal.h&quot;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include &quot;netdb.h&quot;</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include &quot;sys/socket.h&quot;</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#include &quot;<a class="code" href="mm__app__common_8h.html">mm_app_common.h</a>&quot;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="dns__client_8c.html#ad8813e0a0b6ecd915006ef10499b0ddb"> 42</a></span><span class="preprocessor">#define DEFAULT_LOOKUP &quot;www.morsemicro.com&quot;</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor">#ifndef DNS_MAX_NAME_LENGTH</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="dns__client_8c.html#a3b01c79902063c170ef57deb72f56124"> 46</a></span><span class="preprocessor">#define DNS_MAX_NAME_LENGTH (256)</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="dns__client_8c.html#aab6c345708293f4688077eaead7ae424"> 56</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dns__client_8c.html#aab6c345708293f4688077eaead7ae424">dns_lookup</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <span class="keywordtype">int</span> ai_family)</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>{</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">/*</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment"> * Hints is optional and can be specified as NULL in getaddrinfo()</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment"> * if you just want to lookup an IP. But if you intend to use the returned data</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment"> * to actually connect (as you would in a real use case), then you need to specify</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment"> * hints so that the correct protocol and ports are returned in addr_list below.</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment"> */</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">struct </span>addrinfo hints = { 0 };</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> hints.ai_family = ai_family;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> hints.ai_socktype = SOCK_STREAM;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> hints.ai_protocol = IPPROTO_TCP;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">struct </span>addrinfo *addr_list, *cur;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">int</span> ret = getaddrinfo(hostname, NULL, &amp;hints, &amp;addr_list);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (ret == 0)</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="comment">/*</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="comment"> * Enumerate all addresses returned.</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="comment"> * Technically this API can return multiple addresses including combinations</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="comment"> * of IPv4 and IPv6 addresses (depending on the hints given).</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="comment"> */</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">for</span> (cur = addr_list; cur != NULL; cur = cur-&gt;ai_next)</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> {</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="comment">/*</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="comment"> * In a typical use case, you can directly use the first element in addr_list</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment"> * to open a socket and connect as shown below:</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment"> *</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="comment"> * int fd = socket(addr_list-&gt;ai_family, addr_list-&gt;ai_socktype, addr_list-&gt;ai_protocol);</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="comment"> * connect(fd, addr_list-&gt;ai_addr, addr_list-&gt;ai_addrlen);</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="comment"> *</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="comment"> * However in this example we want to print the list of IP addeesses found</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="comment"> * so we enumerate the addr_list, and do some conversions to convert and print the</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment"> * IP addresses.</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="comment"> */</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">char</span> addr_str[<a class="code hl_define" href="group__MMIPAL.html#gaf28996cd2e5ac90dcb98020e151efd63">MMIPAL_IPADDR_STR_MAXLEN</a>];</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *result = NULL;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">if</span> (cur-&gt;ai_family == AF_INET)</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> {</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><span class="preprocessor">#if MMIPAL_IPV4_ENABLED</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> <span class="keyword">struct </span>sockaddr_in *sockaddr = (<span class="keyword">const</span> <span class="keyword">struct </span>sockaddr_in *)cur-&gt;ai_addr;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> result = inet_ntop(cur-&gt;ai_family, &amp;sockaddr-&gt;sin_addr,</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> addr_str, <span class="keyword">sizeof</span>(addr_str));</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span><span class="preprocessor">#if MMIPAL_IPV6_ENABLED</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (cur-&gt;ai_family == AF_INET6)</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> {</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">const</span> <span class="keyword">struct </span>sockaddr_in6 *sockaddr = (<span class="keyword">const</span> <span class="keyword">struct </span>sockaddr_in6 *)cur-&gt;ai_addr;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> result = inet_ntop(cur-&gt;ai_family, &amp;sockaddr-&gt;sin6_addr,</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> addr_str, <span class="keyword">sizeof</span>(addr_str));</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span> (result != NULL)</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> printf(<span class="stringliteral">&quot; %s\n&quot;</span>, result);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> {</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> printf(<span class="stringliteral">&quot;Error: Failed to convert IP address to string\n&quot;</span>);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> }</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> freeaddrinfo(addr_list);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *family_str;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">switch</span> (ai_family)</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> {</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">case</span> AF_INET:</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> family_str = <span class="stringliteral">&quot;IPv4&quot;</span>;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">case</span> AF_INET6:</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> family_str = <span class="stringliteral">&quot;IPv6&quot;</span>;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> family_str = <span class="stringliteral">&quot;??&quot;</span>;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> }</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> printf(<span class="stringliteral">&quot;Could not resolve %s address for hostname %s! (Error code %d)\n&quot;</span>,</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> family_str, hostname, ret);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> }</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>}</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"><a class="line" href="dns__client_8c.html#add3190cf715f513666f4be42874d91e2"> 151</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="dns__client_8c.html#add3190cf715f513666f4be42874d91e2">app_init</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>{</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">static</span> <span class="keywordtype">char</span> hostname[<a class="code hl_define" href="dns__client_8c.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a> + 1];</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> printf(<span class="stringliteral">&quot;\n\nMorse DNS client Demo (Built &quot;</span> __DATE__ <span class="stringliteral">&quot; &quot;</span> __TIME__ <span class="stringliteral">&quot;)\n\n&quot;</span>);</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="comment">/* Initialize and connect to Wi-Fi, blocks till connected */</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <a class="code hl_function" href="mm__app__common_8h.html#ac74a7d993e4fd372d18ee5d2f2570fb9">app_wlan_init</a>();</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <a class="code hl_function" href="mm__app__common_8h.html#aeda94efa10a45cefab39a3459374c074">app_wlan_start</a>();</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="comment">/* Get the hostname to lookup, if not provided use the default */</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> strncpy(hostname, <a class="code hl_define" href="dns__client_8c.html#ad8813e0a0b6ecd915006ef10499b0ddb">DEFAULT_LOOKUP</a>, <span class="keyword">sizeof</span>(hostname));</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> (void)<a class="code hl_function" href="group__MMCONFIG__API.html#ga49a03e759500ae9d9395a22d3846c11e">mmconfig_read_string</a>(<span class="stringliteral">&quot;dns.lookup&quot;</span>, hostname, <span class="keyword">sizeof</span>(hostname));</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> </div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> printf(<span class="stringliteral">&quot;Hostname %s resolves to:\n&quot;</span>, hostname);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <a class="code hl_function" href="dns__client_8c.html#aab6c345708293f4688077eaead7ae424">dns_lookup</a>(hostname, AF_INET);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <a class="code hl_function" href="dns__client_8c.html#aab6c345708293f4688077eaead7ae424">dns_lookup</a>(hostname, AF_INET6);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="comment">/* Disconnect from Wi-Fi */</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <a class="code hl_function" href="mm__app__common_8h.html#a73b05ab3c7445083a464d8df405115c8">app_wlan_stop</a>();</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span>}</div>
<div class="ttc" id="adns__client_8c_html_a3b01c79902063c170ef57deb72f56124"><div class="ttname"><a href="dns__client_8c.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a></div><div class="ttdeci">#define DNS_MAX_NAME_LENGTH</div><div class="ttdoc">Maximum supported length of hostname for DNS lookup.</div><div class="ttdef"><b>Definition:</b> <a href="dns__client_8c_source.html#l00046">dns_client.c:46</a></div></div>
<div class="ttc" id="adns__client_8c_html_aab6c345708293f4688077eaead7ae424"><div class="ttname"><a href="dns__client_8c.html#aab6c345708293f4688077eaead7ae424">dns_lookup</a></div><div class="ttdeci">static void dns_lookup(const char *hostname, int ai_family)</div><div class="ttdoc">Perform a DNS lookup for the given hostname and print the results.</div><div class="ttdef"><b>Definition:</b> <a href="dns__client_8c_source.html#l00056">dns_client.c:56</a></div></div>
<div class="ttc" id="adns__client_8c_html_ad8813e0a0b6ecd915006ef10499b0ddb"><div class="ttname"><a href="dns__client_8c.html#ad8813e0a0b6ecd915006ef10499b0ddb">DEFAULT_LOOKUP</a></div><div class="ttdeci">#define DEFAULT_LOOKUP</div><div class="ttdoc">This is the default hostname to lookup if none are specified in config store.</div><div class="ttdef"><b>Definition:</b> <a href="dns__client_8c_source.html#l00042">dns_client.c:42</a></div></div>
<div class="ttc" id="adns__client_8c_html_add3190cf715f513666f4be42874d91e2"><div class="ttname"><a href="dns__client_8c.html#add3190cf715f513666f4be42874d91e2">app_init</a></div><div class="ttdeci">void app_init(void)</div><div class="ttdoc">Main entry point to the application.</div><div class="ttdef"><b>Definition:</b> <a href="dns__client_8c_source.html#l00151">dns_client.c:151</a></div></div>
<div class="ttc" id="agroup__MMCONFIG__API_html_ga49a03e759500ae9d9395a22d3846c11e"><div class="ttname"><a href="group__MMCONFIG__API.html#ga49a03e759500ae9d9395a22d3846c11e">mmconfig_read_string</a></div><div class="ttdeci">int mmconfig_read_string(const char *key, char *buffer, int bufsize)</div><div class="ttdoc">Returns the persistent store string value identified by the key.</div></div>
<div class="ttc" id="agroup__MMIPAL_html_gaf28996cd2e5ac90dcb98020e151efd63"><div class="ttname"><a href="group__MMIPAL.html#gaf28996cd2e5ac90dcb98020e151efd63">MMIPAL_IPADDR_STR_MAXLEN</a></div><div class="ttdeci">#define MMIPAL_IPADDR_STR_MAXLEN</div><div class="ttdoc">Maximum length of an IP address string, including null-terminator.</div><div class="ttdef"><b>Definition:</b> <a href="mmipal_8h_source.html#l00027">mmipal.h:27</a></div></div>
<div class="ttc" id="amm__app__common_8h_html"><div class="ttname"><a href="mm__app__common_8h.html">mm_app_common.h</a></div><div class="ttdoc">Morse Micro application helper routines for initializing/de-initializing the Wireless LAN interface a...</div></div>
<div class="ttc" id="amm__app__common_8h_html_a73b05ab3c7445083a464d8df405115c8"><div class="ttname"><a href="mm__app__common_8h.html#a73b05ab3c7445083a464d8df405115c8">app_wlan_stop</a></div><div class="ttdeci">void app_wlan_stop(void)</div><div class="ttdoc">Disconnects from Wi-Fi and de-initializes the WLAN interface.</div></div>
<div class="ttc" id="amm__app__common_8h_html_ac74a7d993e4fd372d18ee5d2f2570fb9"><div class="ttname"><a href="mm__app__common_8h.html#ac74a7d993e4fd372d18ee5d2f2570fb9">app_wlan_init</a></div><div class="ttdeci">void app_wlan_init(void)</div><div class="ttdoc">Initializes the WLAN interface (and dependencies) using settings specified in the config store.</div></div>
<div class="ttc" id="amm__app__common_8h_html_aeda94efa10a45cefab39a3459374c074"><div class="ttname"><a href="mm__app__common_8h.html#aeda94efa10a45cefab39a3459374c074">app_wlan_start</a></div><div class="ttdeci">void app_wlan_start(void)</div><div class="ttdoc">Starts the WLAN interface and connects to Wi-Fi using settings specified in the config store.</div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- HTML footer for doxygen 1.8.17-->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_91b8f418cff946e8d8b598a9068417a8.html">examples</a></li><li class="navelem"><a class="el" href="dir_b736ae14df4bc0f117d2dd101dbc55dd.html">dns_client</a></li><li class="navelem"><a class="el" href="dir_77a404d5bde1e7217255a05b3e030766.html">src</a></li><li class="navelem"><a class="el" href="dns__client_8c.html">dns_client.c</a></li>
<li class="footer">Copyright 2021 Morse Micro </li>
</ul>
</div>
</body>
</html>
Reference in a new issue View git blame Copy permalink