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<div class="title">netdb.c</div> </div>
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<div class="contents">
<a href="netdb_8c.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="l00009"></a><span class="lineno"> 9</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</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="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Author: Simon Goldschmidt</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "lwip/netdb.h"</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#if LWIP_DNS && LWIP_SOCKET</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 "lwip/err.h"</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include "lwip/mem.h"</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "lwip/memp.h"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "lwip/ip_addr.h"</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include "lwip/api.h"</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include "lwip/dns.h"</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <<a class="code" href="string_8h.html">string.h</a>></span> <span class="comment">/* memset */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <stdlib.h></span> <span class="comment">/* atoi */</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="keyword">struct </span>gethostbyname_r_helper {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr_list[2];</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> addr;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">char</span> *aliases;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> };</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#if LWIP_DNS_API_DECLARE_H_ERRNO</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">int</span> h_errno;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_DNS_API_DECLARE_H_ERRNO */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#ifndef LWIP_DNS_API_HOSTENT_STORAGE</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define LWIP_DNS_API_HOSTENT_STORAGE 0</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="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#if LWIP_DNS_API_HOSTENT_STORAGE</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#define HOSTENT_STORAGE</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#define HOSTENT_STORAGE static</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_DNS_API_STATIC_HOSTENT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">struct </span>hostent*</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> lwip_gethostbyname(<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="l00088"></a><span class="lineno"> 88</span> {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> err;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> addr;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">/* buffer variables for lwip_gethostbyname() */</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  HOSTENT_STORAGE <span class="keyword">struct </span>hostent s_hostent;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  HOSTENT_STORAGE <span class="keywordtype">char</span> *s_aliases;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  HOSTENT_STORAGE <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> s_hostent_addr;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  HOSTENT_STORAGE <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *s_phostent_addr[2];</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  HOSTENT_STORAGE <span class="keywordtype">char</span> s_hostname[<a class="code" href="lwipopts_8h.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a> + 1];</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">/* query host IP address */</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  err = netconn_gethostbyname(<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, &addr);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (err != <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"lwip_gethostbyname(%s) failed, err=%d\n"</span>, <a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, err));</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  h_errno = HOST_NOT_FOUND;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">/* fill hostent */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  s_hostent_addr = addr;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  s_phostent_addr[0] = &s_hostent_addr;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  s_phostent_addr[1] = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="string_8h.html#a3a2a3fddad0b7aa0ddb8fcd7509b9e27">strncpy</a>(s_hostname, <a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <a class="code" href="lwipopts_8h.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a>);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  s_hostname[<a class="code" href="lwipopts_8h.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a>] = 0;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  s_hostent.h_name = s_hostname;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  s_aliases = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  s_hostent.h_aliases = &s_aliases;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  s_hostent.h_addrtype = AF_INET;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  s_hostent.h_length = <span class="keyword">sizeof</span>(<a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a>);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  s_hostent.h_addr_list = (<span class="keywordtype">char</span>**)&s_phostent_addr;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#if DNS_DEBUG</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">/* dump hostent */</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_name == %s\n"</span>, s_hostent.h_name));</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_aliases == %p\n"</span>, (<span class="keywordtype">void</span>*)s_hostent.h_aliases));</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">/* h_aliases are always empty */</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_addrtype == %d\n"</span>, s_hostent.h_addrtype));</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_length == %d\n"</span>, s_hostent.h_length));</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_addr_list == %p\n"</span>, (<span class="keywordtype">void</span>*)s_hostent.h_addr_list));</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (s_hostent.h_addr_list != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> idx;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">for</span> (idx=0; s_hostent.h_addr_list[idx]; idx++) {</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_addr_list[%i] == %p\n"</span>, idx, s_hostent.h_addr_list[idx]));</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"hostent.h_addr_list[%i]-> == %s\n"</span>, idx, <a class="code" href="ip__addr_8h.html#ad345f630acbf2a01536d10d3aacee04f">ipaddr_ntoa</a>((<a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a>*)s_hostent.h_addr_list[idx])));</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor">#endif </span><span class="comment">/* DNS_DEBUG */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#if LWIP_DNS_API_HOSTENT_STORAGE</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">/* this function should return the "per-thread" hostent after copy from s_hostent */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> sys_thread_hostent(&s_hostent);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> &s_hostent;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_DNS_API_HOSTENT_STORAGE */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> lwip_gethostbyname_r(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <span class="keyword">struct</span> hostent *ret, <span class="keywordtype">char</span> *<a class="code" href="structbuf.html">buf</a>,</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">size_t</span> buflen, <span class="keyword">struct</span> hostent **result, <span class="keywordtype">int</span> *h_errnop)</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> err;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">struct </span>gethostbyname_r_helper *h;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">char</span> *hostname;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">size_t</span> namelen;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">int</span> lh_errno;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (h_errnop == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">/* ensure h_errnop is never NULL */</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  h_errnop = &lh_errno;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (result == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">/* not all arguments given */</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  *h_errnop = <a class="code" href="sys_2errno_8h.html#a2d1678d5a7cc8ce499643f3b8957def4">EINVAL</a>;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">/* first thing to do: set *result to nothing */</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  *result = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> ((<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a> == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) || (ret == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) || (<a class="code" href="structbuf.html">buf</a> == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)) {</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">/* not all arguments given */</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  *h_errnop = <a class="code" href="sys_2errno_8h.html#a2d1678d5a7cc8ce499643f3b8957def4">EINVAL</a>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  namelen = <a class="code" href="lib_8h.html#ae6c8de953239811a34eeeab09458e55e">strlen</a>(<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (buflen < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> gethostbyname_r_helper) + namelen + 1 + (<a class="code" href="lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a> - 1))) {</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">/* buf can't hold the data needed + a copy of name */</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  *h_errnop = <a class="code" href="sys_2errno_8h.html#aa1591a4f3a86360108de5b9ba34980ca">ERANGE</a>;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</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>  h = (<span class="keyword">struct </span>gethostbyname_r_helper*)<a class="code" href="group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(<a class="code" href="structbuf.html">buf</a>);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  hostname = ((<span class="keywordtype">char</span>*)h) + <span class="keyword">sizeof</span>(<span class="keyword">struct </span>gethostbyname_r_helper);</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">/* query host IP address */</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  err = netconn_gethostbyname(<a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, &h->addr);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (err != <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a>, (<span class="stringliteral">"lwip_gethostbyname(%s) failed, err=%d\n"</span>, <a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, err));</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  *h_errnop = HOST_NOT_FOUND;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">/* copy the hostname into buf */</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(hostname, <a class="code" href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, namelen);</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  hostname[namelen] = 0;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">/* fill hostent */</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  h->addr_list[0] = &h->addr;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  h->addr_list[1] = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  h->aliases = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  ret->h_name = hostname;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  ret->h_aliases = &h->aliases;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  ret->h_addrtype = AF_INET;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  ret->h_length = <span class="keyword">sizeof</span>(<a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a>);</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  ret->h_addr_list = (<span class="keywordtype">char</span>**)&h->addr_list;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">/* set result != NULL */</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  *result = ret;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">/* return success */</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> }</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  </div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> lwip_freeaddrinfo(<span class="keyword">struct</span> addrinfo *ai)</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> {</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">struct </span>addrinfo *next;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">while</span> (ai != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  next = ai->ai_next;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <a class="code" href="memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_NETDB, ai);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  ai = next;</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> lwip_getaddrinfo(<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="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">const</span> <span class="keyword">struct</span> addrinfo *hints, <span class="keyword">struct</span> addrinfo **res)</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> {</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> err;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> addr;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">struct </span>addrinfo *ai;</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keyword">struct </span>sockaddr_storage *sa = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordtype">int</span> port_nr = 0;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordtype">size_t</span> total_size;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordtype">size_t</span> namelen = 0;</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordtype">int</span> ai_family;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  </div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (res == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">return</span> EAI_FAIL;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  *res = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> ((nodename == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && (servname == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)) {</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">return</span> EAI_NONAME;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (hints != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  ai_family = hints->ai_family;</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">if</span> ((ai_family != AF_UNSPEC)</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> #<span class="keywordflow">if</span> <a class="code" href="lwipopts_8h.html#a429e811a80ebb5157e14a854870c4410">LWIP_IPV4</a></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  && (ai_family != AF_INET)</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> #endif <span class="comment">/* LWIP_IPV4 */</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> #<span class="keywordflow">if</span> <a class="code" href="lwipopts_8h.html#a872e3bb3fe2212156d66b18fccc9643f">LWIP_IPV6</a></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  && (ai_family != AF_INET6)</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> #endif <span class="comment">/* LWIP_IPV6 */</span></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>  <span class="keywordflow">return</span> EAI_FAMILY;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  ai_family = AF_UNSPEC;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  </div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">if</span> (servname != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">/* service name specified: convert to port number</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="comment"> * @todo?: currently, only ASCII integers (port numbers) are supported (AI_NUMERICSERV)! */</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  port_nr = atoi(servname);</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">if</span> ((port_nr <= 0) || (port_nr > 0xffff)) {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">return</span> EAI_SERVICE;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  }</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  }</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  </div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (nodename != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">/* service location specified, try to resolve */</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">if</span> ((hints != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && (hints->ai_flags & AI_NUMERICHOST)) {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">/* no DNS lookup, just parse for an address string */</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">if</span> (!<a class="code" href="ip__addr_8h.html#a9b9fae6ad88a288c3c6da050644e2a48">ipaddr_aton</a>(nodename, &addr)) {</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">return</span> EAI_NONAME;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="preprocessor">#if LWIP_IPV4 && LWIP_IPV6</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">if</span> ((<a class="code" href="ip__addr_8h.html#a1578e34703e86711a7fb7dcc3857004d">IP_IS_V6_VAL</a>(addr) && ai_family == AF_INET) ||</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  (<a class="code" href="ip__addr_8h.html#ab1a059f07bd9c50aa58447d963b823a1">IP_IS_V4_VAL</a>(addr) && ai_family == AF_INET6)) {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">return</span> EAI_NONAME;</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  }</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV4 && LWIP_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="preprocessor">#if LWIP_IPV4 && LWIP_IPV6</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">/* AF_UNSPEC: prefer IPv4 */</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> type = NETCONN_DNS_IPV4_IPV6;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">if</span> (ai_family == AF_INET) {</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  type = NETCONN_DNS_IPV4;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ai_family == AF_INET6) {</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  type = NETCONN_DNS_IPV6;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV4 && LWIP_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  err = netconn_gethostbyname_addrtype(nodename, &addr, type);</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">if</span> (err != <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">return</span> EAI_FAIL;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  }</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">/* service location specified, use loopback address */</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> ((hints != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && (hints->ai_flags & AI_PASSIVE)) {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <a class="code" href="ip__addr_8h.html#a8853fce54b1816dca3af90b48677e673">ip_addr_set_any</a>(ai_family == AF_INET6, &addr);</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <a class="code" href="ip__addr_8h.html#a8f9d56ac85cd87338a1823e4a58ba1da">ip_addr_set_loopback</a>(ai_family == AF_INET6, &addr);</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  }</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  total_size = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>addrinfo) + sizeof(struct sockaddr_storage);</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (nodename != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  namelen = <a class="code" href="lib_8h.html#ae6c8de953239811a34eeeab09458e55e">strlen</a>(nodename);</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span> (namelen > <a class="code" href="lwipopts_8h.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a>) {</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">/* invalid name length */</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> EAI_FAIL;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <a class="code" href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"namelen is too long"</span>, total_size + namelen + 1 > total_size);</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  total_size += namelen + 1;</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  }</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">/* If this fails, please report to lwip-devel! :-) */</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <a class="code" href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"total_size <= NETDB_ELEM_SIZE: please report this!"</span>,</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  total_size <= NETDB_ELEM_SIZE);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  ai = (<span class="keyword">struct </span>addrinfo *)<a class="code" href="memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_NETDB);</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (ai == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">return</span> EAI_MEMORY;</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <a class="code" href="string_8h.html#ace4b911463887af5e748326323e99a23">memset</a>(ai, 0, total_size);</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">/* cast through void* to get rid of alignment warnings */</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  sa = (<span class="keyword">struct </span>sockaddr_storage *)(<span class="keywordtype">void</span>*)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ai + <span class="keyword">sizeof</span>(<span class="keyword">struct</span> addrinfo));</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">if</span> (<a class="code" href="ip__addr_8h.html#a1578e34703e86711a7fb7dcc3857004d">IP_IS_V6_VAL</a>(addr)) {</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor">#if LWIP_IPV6</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keyword">struct </span>sockaddr_in6 *sa6 = (<span class="keyword">struct </span>sockaddr_in6*)sa;</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">/* set up sockaddr */</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  inet6_addr_from_ip6addr(&sa6->sin6_addr, <a class="code" href="ip__addr_8h.html#a06e75bcd198012b5ba39480c233608bd">ip_2_ip6</a>(&addr));</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  sa6->sin6_family = AF_INET6;</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  sa6->sin6_len = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_in6);</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  sa6->sin6_port = <a class="code" href="def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a>((<a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)port_nr);</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  ai->ai_family = AF_INET6;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="preprocessor">#if LWIP_IPV4</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">struct </span>sockaddr_in *sa4 = (<span class="keyword">struct </span>sockaddr_in*)sa;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="comment">/* set up sockaddr */</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  inet_addr_from_ip4addr(&sa4->sin_addr, ip_2_ip4(&addr));</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  sa4->sin_family = AF_INET;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  sa4->sin_len = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_in);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  sa4->sin_port = <a class="code" href="def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a>((<a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)port_nr);</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  ai->ai_family = AF_INET;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV4 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  }</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  </div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">/* set up addrinfo */</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">if</span> (hints != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">/* copy socktype & protocol from hints if specified */</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  ai->ai_socktype = hints->ai_socktype;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  ai->ai_protocol = hints->ai_protocol;</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>  <span class="keywordflow">if</span> (nodename != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="comment">/* copy nodename to canonname if specified */</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  ai->ai_canonname = ((<span class="keywordtype">char</span>*)ai + <span class="keyword">sizeof</span>(<span class="keyword">struct</span> addrinfo) + <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_storage));</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(ai->ai_canonname, nodename, namelen);</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  ai->ai_canonname[namelen] = 0;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  ai->ai_addrlen = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_storage);</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  ai->ai_addr = (<span class="keyword">struct </span>sockaddr*)sa;</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  </div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  *res = ai;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  </div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> }</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_DNS && LWIP_SOCKET */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="alwipopts_8h_html_a3b01c79902063c170ef57deb72f56124"><div class="ttname"><a href="lwipopts_8h.html#a3b01c79902063c170ef57deb72f56124">DNS_MAX_NAME_LENGTH</a></div><div class="ttdeci">#define DNS_MAX_NAME_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00159">lwipopts.h:159</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a1578e34703e86711a7fb7dcc3857004d"><div class="ttname"><a href="ip__addr_8h.html#a1578e34703e86711a7fb7dcc3857004d">IP_IS_V6_VAL</a></div><div class="ttdeci">#define IP_IS_V6_VAL(ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00294">ip_addr.h:294</a></div></div>
<div class="ttc" id="adebug_8h_html_a94ad086267808462beae2b38f91996ed"><div class="ttname"><a href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a></div><div class="ttdeci">#define LWIP_ASSERT(message, assertion)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00116">debug.h:116</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a872e3bb3fe2212156d66b18fccc9643f"><div class="ttname"><a href="lwipopts_8h.html#a872e3bb3fe2212156d66b18fccc9643f">LWIP_IPV6</a></div><div class="ttdeci">#define LWIP_IPV6</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00366">lwipopts.h:366</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div><div class="ttdeci">uint16_t u16_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00124">arch.h:124</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="string_8h.html">string.h</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a8f9d56ac85cd87338a1823e4a58ba1da"><div class="ttname"><a href="ip__addr_8h.html#a8f9d56ac85cd87338a1823e4a58ba1da">ip_addr_set_loopback</a></div><div class="ttdeci">#define ip_addr_set_loopback(is_ipv6, ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00312">ip_addr.h:312</a></div></div>
<div class="ttc" id="astring_8h_html_a3a2a3fddad0b7aa0ddb8fcd7509b9e27"><div class="ttname"><a href="string_8h.html#a3a2a3fddad0b7aa0ddb8fcd7509b9e27">strncpy</a></div><div class="ttdeci">char * strncpy(char *__restrict, const char *__restrict, size_t)</div></div>
<div class="ttc" id="alib_8h_html_ae6c8de953239811a34eeeab09458e55e"><div class="ttname"><a href="lib_8h.html#ae6c8de953239811a34eeeab09458e55e">strlen</a></div><div class="ttdeci">int strlen(const char *str)</div><div class="ttdef"><b>Definition:</b> <a href="strlen_8c_source.html#l00055">strlen.c:55</a></div></div>
<div class="ttc" id="amemp_8h_html_a2b00593d086313c267b54a976bf67aa5"><div class="ttname"><a href="memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a></div><div class="ttdeci">void * memp_malloc(memp_t type)</div><div class="ttdef"><b>Definition:</b> <a href="memp_8c_source.html#l00385">memp.c:385</a></div></div>
<div class="ttc" id="asys_2errno_8h_html_aa1591a4f3a86360108de5b9ba34980ca"><div class="ttname"><a href="sys_2errno_8h.html#aa1591a4f3a86360108de5b9ba34980ca">ERANGE</a></div><div class="ttdeci">#define ERANGE</div><div class="ttdef"><b>Definition:</b> <a href="sys_2errno_8h_source.html#l00070">errno.h:70</a></div></div>
<div class="ttc" id="amemp_8h_html_aecd94926b7c2a0e23ae195f4ae97581f"><div class="ttname"><a href="memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a></div><div class="ttdeci">void memp_free(memp_t type, void *mem)</div><div class="ttdef"><b>Definition:</b> <a href="memp_8c_source.html#l00469">memp.c:469</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4caecabca98b43919dd11be1c0d4cd8e"><div class="ttname"><a href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a></div><div class="ttdeci">uint8_t u8_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00122">arch.h:122</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a88b43639738c4de2d3cd22e3a1fd7696"><div class="ttname"><a href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a></div><div class="ttdeci">ip6_addr_t ip_addr_t</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00290">ip_addr.h:290</a></div></div>
<div class="ttc" id="astructbuf_html"><div class="ttname"><a href="structbuf.html">buf</a></div><div class="ttdef"><b>Definition:</b> <a href="buf_8h_source.html#l00035">buf.h:35</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a9b9fae6ad88a288c3c6da050644e2a48"><div class="ttname"><a href="ip__addr_8h.html#a9b9fae6ad88a288c3c6da050644e2a48">ipaddr_aton</a></div><div class="ttdeci">#define ipaddr_aton(cp, addr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00327">ip_addr.h:327</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a8853fce54b1816dca3af90b48677e673"><div class="ttname"><a href="ip__addr_8h.html#a8853fce54b1816dca3af90b48677e673">ip_addr_set_any</a></div><div class="ttdeci">#define ip_addr_set_any(is_ipv6, ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00311">ip_addr.h:311</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a06e75bcd198012b5ba39480c233608bd"><div class="ttname"><a href="ip__addr_8h.html#a06e75bcd198012b5ba39480c233608bd">ip_2_ip6</a></div><div class="ttdeci">#define ip_2_ip6(ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00301">ip_addr.h:301</a></div></div>
<div class="ttc" id="adef_8c_html_ad637280639de4066392e6b5614fa3e56"><div class="ttname"><a href="def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a></div><div class="ttdeci">u16_t lwip_htons(u16_t n)</div><div class="ttdef"><b>Definition:</b> <a href="def_8c_source.html#l00075">def.c:75</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a97343214666ee6dcb18c0bd77b441ea7"><div class="ttname"><a href="lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a></div><div class="ttdeci">#define MEM_ALIGNMENT</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00054">lwipopts.h:54</a></div></div>
<div class="ttc" id="aip__addr_8h_html_ab1a059f07bd9c50aa58447d963b823a1"><div class="ttname"><a href="ip__addr_8h.html#ab1a059f07bd9c50aa58447d963b823a1">IP_IS_V4_VAL</a></div><div class="ttdeci">#define IP_IS_V4_VAL(ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00293">ip_addr.h:293</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gaa8e8724eb1c220cbbb90de9e175ce1dc"><div class="ttname"><a href="group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a></div><div class="ttdeci">#define LWIP_MEM_ALIGN(addr)</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00236">arch.h:236</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a></div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00063">err.h:63</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_gaf02d9da80fd66b4f986d2c53d7231ddb"><div class="ttname"><a href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div><div class="ttdeci">s8_t err_t</div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00057">err.h:57</a></div></div>
<div class="ttc" id="apci_8c_html_a8f8f80d37794cde9472343e4487ba3eb"><div class="ttname"><a href="pci_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a></div><div class="ttdeci">const char * name</div><div class="ttdef"><b>Definition:</b> <a href="pci_8c_source.html#l00037">pci.c:37</a></div></div>
<div class="ttc" id="alwipopts_8h_html_aa1dd57a66b6de8c0593e9e3e8d1411f6"><div class="ttname"><a href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a></div><div class="ttdeci">#define MEMCPY(dst, src, len)</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00043">lwipopts.h:43</a></div></div>
<div class="ttc" id="astring_8h_html_ace4b911463887af5e748326323e99a23"><div class="ttname"><a href="string_8h.html#ace4b911463887af5e748326323e99a23">memset</a></div><div class="ttdeci">void * memset(void *dst, int c, size_t length)</div></div>
<div class="ttc" id="aip__addr_8h_html_ad345f630acbf2a01536d10d3aacee04f"><div class="ttname"><a href="ip__addr_8h.html#ad345f630acbf2a01536d10d3aacee04f">ipaddr_ntoa</a></div><div class="ttdeci">#define ipaddr_ntoa(ipaddr)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00325">ip_addr.h:325</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a429e811a80ebb5157e14a854870c4410"><div class="ttname"><a href="lwipopts_8h.html#a429e811a80ebb5157e14a854870c4410">LWIP_IPV4</a></div><div class="ttdeci">#define LWIP_IPV4</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00109">lwipopts.h:109</a></div></div>
<div class="ttc" id="adebug_8h_html_a63a04edf7ff63c951bd8706711956cdb"><div class="ttname"><a href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a></div><div class="ttdeci">#define LWIP_DEBUGF(debug, message)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00164">debug.h:164</a></div></div>
<div class="ttc" id="asys_2errno_8h_html_a2d1678d5a7cc8ce499643f3b8957def4"><div class="ttname"><a href="sys_2errno_8h.html#a2d1678d5a7cc8ce499643f3b8957def4">EINVAL</a></div><div class="ttdeci">#define EINVAL</div><div class="ttdef"><b>Definition:</b> <a href="sys_2errno_8h_source.html#l00055">errno.h:55</a></div></div>
<div class="ttc" id="alwipopts_8h_html_aba55da2352c99d813767913e5e36be1f"><div class="ttname"><a href="lwipopts_8h.html#aba55da2352c99d813767913e5e36be1f">DNS_DEBUG</a></div><div class="ttdeci">#define DNS_DEBUG</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00486">lwipopts.h:486</a></div></div>
<div class="ttc" id="afat__string_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="fat__string_8h_source.html#l00017">fat_string.h:17</a></div></div>
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