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<div class="title">dns.h</div> </div>
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<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>  </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#ifndef LWIP_HDR_DNS_H</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#define LWIP_HDR_DNS_H</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="opt_8h.html">net/opt.h</a>"</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#if LWIP_DNS</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include "<a class="code" href="ip__addr_8h.html">net/ip_addr.h</a>"</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#define DNS_TMR_INTERVAL 1000</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">/* DNS resolve types: */</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_IPV4 0</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_IPV6 1</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_IPV4_IPV6 2 </span><span class="comment">/* try to resolve IPv4 first, try IPv6 if IPv4 fails only */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_IPV6_IPV4 3 </span><span class="comment">/* try to resolve IPv6 first, try IPv4 if IPv6 fails only */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#if LWIP_IPV4 && LWIP_IPV6</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#ifndef LWIP_DNS_ADDRTYPE_DEFAULT</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4_IPV6</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#elif LWIP_IPV4</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV6</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#if DNS_LOCAL_HOSTLIST</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">struct </span>local_hostlist_entry {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> addr;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">struct </span>local_hostlist_entry *next;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> };</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#define DNS_LOCAL_HOSTLIST_ELEM(name, addr_init) {name, addr_init, NULL}</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN DNS_MAX_NAME_LENGTH</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1))</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#endif </span><span class="comment">/* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#endif </span><span class="comment">/* DNS_LOCAL_HOSTLIST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#if LWIP_IPV4</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> dns_mquery_v4group;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV4 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#if LWIP_IPV6</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> dns_mquery_v6group;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">typedef</span> void (*dns_found_callback)(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *ipaddr, <span class="keywordtype">void</span> *callback_arg);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keywordtype">void</span> dns_init(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">void</span> dns_tmr(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keywordtype">void</span> dns_setserver(<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> numdns, <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *dnsserver);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a>* dns_getserver(<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> numdns);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> dns_gethostbyname(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr,</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  dns_found_callback found, <span class="keywordtype">void</span> *callback_arg);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> dns_gethostbyname_addrtype(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  dns_found_callback found, <span class="keywordtype">void</span> *callback_arg,</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> dns_addrtype);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#if DNS_LOCAL_HOSTLIST</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keywordtype">size_t</span> dns_local_iterate(dns_found_callback iterator_fn, <span class="keywordtype">void</span> *iterator_arg);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> dns_local_lookup(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> dns_addrtype);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">int</span> dns_local_removehost(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> dns_local_addhost(<span class="keyword">const</span> <span class="keywordtype">char</span> *hostname, <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor">#endif </span><span class="comment">/* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#endif </span><span class="comment">/* DNS_LOCAL_HOSTLIST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_DNS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_HDR_DNS_H */</span><span class="preprocessor"></span></div>
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