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<a href="net_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> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * TCP networking functions</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2006-2014, Brainspark B.V.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This file is part of PolarSSL (http://www.polarssl.org)</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * GNU General Public License for more details.</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"> * You should have received a copy of the GNU General Public License along</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">polarssl/config.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#if defined(POLARSSL_NET_C)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="net_8h.html">polarssl/net.h</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_IPV6)</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#ifdef _WIN32_WINNT</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor">#undef _WIN32_WINNT</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span><span class="comment">/* Enables getaddrinfo() & Co */</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#define _WIN32_WINNT 0x0501</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"></span><span class="preprocessor">#include <ws2tcpip.h></span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <winsock2.h></span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <windows.h></span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#if defined(_MSC_VER)</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"></span><span class="preprocessor">#if defined(_WIN32_WCE)</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span><span class="preprocessor">#pragma comment( lib, "ws2.lib" )</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span><span class="preprocessor">#pragma comment( lib, "ws2_32.lib" )</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* _MSC_VER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#define read(fd,buf,len) recv(fd,(char*)buf,(int) len,0)</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"></span><span class="preprocessor">#define write(fd,buf,len) send(fd,(char*)buf,(int) len,0)</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"></span><span class="preprocessor">#define close(fd) closesocket(fd)</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">static</span> <span class="keywordtype">int</span> wsa_init_done = 0;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#else </span><span class="comment">/* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#include <sys/socket.h></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#include <netinet/in.h></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#include <arpa/inet.h></span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_TIME)</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span><span class="preprocessor">#include <sys/time.h></span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span><span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#include <signal.h></span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#include <fcntl.h></span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#include <netdb.h></span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || \</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"> defined(__DragonFly__)</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span><span class="preprocessor">#include <sys/endian.h></span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#elif defined(__APPLE__) || defined(HAVE_MACHINE_ENDIAN_H) || \</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"> defined(EFIX64) || defined(EFI32)</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span><span class="preprocessor">#include <machine/endian.h></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#elif defined(sun)</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"></span><span class="preprocessor">#include <sys/isa_defs.h></span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#elif defined(_AIX) || defined(HAVE_ARPA_NAMESER_COMPAT_H)</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"></span><span class="preprocessor">#include <arpa/nameser_compat.h></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor"></span><span class="preprocessor">#include <endian.h></span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor">#endif </span><span class="comment">/* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#include <stdio.h></span></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="preprocessor">#if defined(_MSC_VER) && !defined snprintf && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor"></span><span class="preprocessor">#define snprintf _snprintf</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_TIME)</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor"></span><span class="preprocessor">#include <time.h></span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor"></span><span class="preprocessor">#include <basetsd.h></span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">typedef</span> UINT32 uint32_t;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="preprocessor"></span><span class="preprocessor">#include <inttypes.h></span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * htons() is not always available.</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * By default go for LITTLE_ENDIAN variant. Otherwise hope for _BYTE_ORDER and</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * __BIG_ENDIAN to help determine endianness.</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#if defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && \</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor"> __BYTE_ORDER == __BIG_ENDIAN</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_HTONS(n) (n)</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_HTONL(n) (n)</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_HTONS(n) ((((unsigned short)(n) & 0xFF ) << 8 ) | \</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor"> (((unsigned short)(n) & 0xFF00 ) >> 8 ))</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_HTONL(n) ((((unsigned long )(n) & 0xFF ) << 24) | \</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor"> (((unsigned long )(n) & 0xFF00 ) << 8 ) | \</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor"> (((unsigned long )(n) & 0xFF0000 ) >> 8 ) | \</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor"> (((unsigned long )(n) & 0xFF000000) >> 24))</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> net_htons( <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> n );</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> net_htonl( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> n );</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor">#define net_htons(n) POLARSSL_HTONS(n)</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor"></span><span class="preprocessor">#define net_htonl(n) POLARSSL_HTONL(n)</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * Prepare for using the sockets interface</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">static</span> <span class="keywordtype">int</span> net_prepare( <span class="keywordtype">void</span> )</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor"></span> WSADATA wsaData;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span>( wsa_init_done == 0 )</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span>( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 )</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a> );</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  wsa_init_done = 1;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="preprocessor"></span><span class="preprocessor">#if !defined(EFIX64) && !defined(EFI32)</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="preprocessor"></span> signal( SIGPIPE, SIG_IGN );</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="preprocessor"></span> <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * Initiate a TCP connection with host:port</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#a49c549b21517d6f905eb9845224f2773">net_connect</a>( <span class="keywordtype">int</span> *fd, <span class="keyword">const</span> <span class="keywordtype">char</span> *host, <span class="keywordtype">int</span> port )</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> {</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_IPV6)</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor"></span> <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">struct </span>addrinfo hints, *addr_list, *cur;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordtype">char</span> port_str[6];</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span>( ( ret = net_prepare() ) != 0 )</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span>( ret );</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>  <span class="comment">/* getaddrinfo expects port as a string */</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  memset( port_str, 0, <span class="keyword">sizeof</span>( port_str ) );</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  snprintf( port_str, <span class="keyword">sizeof</span>( port_str ), <span class="stringliteral">"%d"</span>, port );</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">/* Do name resolution with both IPv6 and IPv4, but only TCP */</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  memset( &hints, 0, <span class="keyword">sizeof</span>( hints ) );</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  hints.ai_family = AF_UNSPEC;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  hints.ai_socktype = SOCK_STREAM;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  hints.ai_protocol = IPPROTO_TCP;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span>( getaddrinfo( host, port_str, &hints, &addr_list ) != 0 )</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a> );</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>  <span class="comment">/* Try the sockaddrs until a connection succeeds */</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  ret = <a class="code" href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">for</span>( cur = addr_list; cur != NULL; cur = cur->ai_next )</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  {</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  *fd = (int) socket( cur->ai_family, cur->ai_socktype,</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  cur->ai_protocol );</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span>( *fd < 0 )</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>  ret = <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a>;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">continue</span>;</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> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span>( connect( *fd, cur->ai_addr, cur->ai_addrlen ) == 0 )</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  ret = 0;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</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>  close( *fd );</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  ret = <a class="code" href="net_8h.html#aa316f63c8e1deda24d3ae1d146854474">POLARSSL_ERR_NET_CONNECT_FAILED</a>;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  freeaddrinfo( addr_list );</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="preprocessor"></span> <span class="comment">/* Legacy IPv4-only version */</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">struct </span>sockaddr_in server_addr;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">struct </span>hostent *server_host;</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="keywordflow">if</span>( ( ret = net_prepare() ) != 0 )</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span>( 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="keywordflow">if</span>( ( server_host = gethostbyname( host ) ) == NULL )</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a> );</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>  <span class="keywordflow">if</span>( ( *fd = (<span class="keywordtype">int</span>) socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a> );</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  memcpy( (<span class="keywordtype">void</span> *) &server_addr.sin_addr,</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  (<span class="keywordtype">void</span> *) server_host->h_addr,</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  server_host->h_length );</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  server_addr.sin_family = AF_INET;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  server_addr.sin_port = net_htons( port );</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span>( connect( *fd, (<span class="keyword">struct</span> sockaddr *) &server_addr,</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">sizeof</span>( server_addr ) ) < 0 )</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>  close( *fd );</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#aa316f63c8e1deda24d3ae1d146854474">POLARSSL_ERR_NET_CONNECT_FAILED</a> );</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_HAVE_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> * Create a listening socket on bind_ip:port</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#a070a7665a1c2c3a5dc4d78aeef0f29de">net_bind</a>( <span class="keywordtype">int</span> *fd, <span class="keyword">const</span> <span class="keywordtype">char</span> *bind_ip, <span class="keywordtype">int</span> port )</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_IPV6)</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="preprocessor"></span> <span class="keywordtype">int</span> n, ret;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">struct </span>addrinfo hints, *addr_list, *cur;</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordtype">char</span> port_str[6];</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">if</span>( ( ret = net_prepare() ) != 0 )</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">/* getaddrinfo expects port as a string */</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  memset( port_str, 0, <span class="keyword">sizeof</span>( port_str ) );</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  snprintf( port_str, <span class="keyword">sizeof</span>( port_str ), <span class="stringliteral">"%d"</span>, port );</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">/* Bind to IPv6 and/or IPv4, but only in TCP */</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  memset( &hints, 0, <span class="keyword">sizeof</span>( hints ) );</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  hints.ai_family = AF_UNSPEC;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  hints.ai_socktype = SOCK_STREAM;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  hints.ai_protocol = IPPROTO_TCP;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span>( bind_ip == NULL )</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  hints.ai_flags = AI_PASSIVE;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">if</span>( getaddrinfo( bind_ip, port_str, &hints, &addr_list ) != 0 )</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a> );</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">/* Try the sockaddrs until a binding succeeds */</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  ret = <a class="code" href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a>;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">for</span>( cur = addr_list; cur != NULL; cur = cur->ai_next )</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  {</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  *fd = (int) socket( cur->ai_family, cur->ai_socktype,</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  cur->ai_protocol );</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span>( *fd < 0 )</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>  ret = <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a>;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</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>  n = 1;</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span>( setsockopt( *fd, SOL_SOCKET, SO_REUSEADDR,</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  (<span class="keyword">const</span> <span class="keywordtype">char</span> *) &n, <span class="keyword">sizeof</span>( n ) ) != 0 )</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  close( *fd );</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  ret = <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a>;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span>( bind( *fd, cur->ai_addr, cur->ai_addrlen ) != 0 )</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>  close( *fd );</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  ret = <a class="code" href="net_8h.html#a14395a416f051e26a9918052614b34d8">POLARSSL_ERR_NET_BIND_FAILED</a>;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  }</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>  <span class="keywordflow">if</span>( listen( *fd, <a class="code" href="net_8h.html#adc2420949d7ec4d71bc892bcdb9d1875">POLARSSL_NET_LISTEN_BACKLOG</a> ) != 0 )</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  {</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  close( *fd );</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  ret = <a class="code" href="net_8h.html#a943010f94195f2f283a2b3d6ccea5422">POLARSSL_ERR_NET_LISTEN_FAILED</a>;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">/* I we ever get there, it's a success */</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  ret = 0;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  }</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  freeaddrinfo( addr_list );</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="preprocessor"></span> <span class="comment">/* Legacy IPv4-only version */</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordtype">int</span> ret, n, c[4];</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">struct </span>sockaddr_in server_addr;</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="keywordflow">if</span>( ( ret = net_prepare() ) != 0 )</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">if</span>( ( *fd = (<span class="keywordtype">int</span>) socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a> );</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  n = 1;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  setsockopt( *fd, SOL_SOCKET, SO_REUSEADDR,</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  (<span class="keyword">const</span> <span class="keywordtype">char</span> *) &n, <span class="keyword">sizeof</span>( n ) );</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>  server_addr.sin_addr.s_addr = net_htonl( INADDR_ANY );</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  server_addr.sin_family = AF_INET;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  server_addr.sin_port = net_htons( port );</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span>( bind_ip != NULL )</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>  memset( c, 0, <span class="keyword">sizeof</span>( c ) );</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  sscanf( bind_ip, <span class="stringliteral">"%d.%d.%d.%d"</span>, &c[0], &c[1], &c[2], &c[3] );</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordflow">for</span>( n = 0; n < 4; n++ )</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">if</span>( c[n] < 0 || c[n] > 255 )</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">break</span>;</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>  <span class="keywordflow">if</span>( n == 4 )</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  server_addr.sin_addr.s_addr = net_htonl(</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  ( (uint32_t) c[0] << 24 ) |</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  ( (uint32_t) c[1] << 16 ) |</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  ( (uint32_t) c[2] << 8 ) |</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  ( (uint32_t) c[3] ) );</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span>( bind( *fd, (<span class="keyword">struct</span> sockaddr *) &server_addr,</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keyword">sizeof</span>( server_addr ) ) < 0 )</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  close( *fd );</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a14395a416f051e26a9918052614b34d8">POLARSSL_ERR_NET_BIND_FAILED</a> );</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span>( listen( *fd, <a class="code" href="net_8h.html#adc2420949d7ec4d71bc892bcdb9d1875">POLARSSL_NET_LISTEN_BACKLOG</a> ) != 0 )</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  {</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  close( *fd );</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a943010f94195f2f283a2b3d6ccea5422">POLARSSL_ERR_NET_LISTEN_FAILED</a> );</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  }</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_HAVE_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment"> * Check if the requested operation would be blocking on a non-blocking socket</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment"> * and thus 'failed' with a negative return value.</span></div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="keyword">static</span> <span class="keywordtype">int</span> net_would_block( <span class="keywordtype">int</span> fd )</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> {</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  ((void) fd);</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span>( WSAGetLastError() == WSAEWOULDBLOCK );</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="comment"> * Check if the requested operation would be blocking on a non-blocking socket</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="comment"> * and thus 'failed' with a negative return value.</span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="comment"> * Note: on a blocking socket this function always returns 0!</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="keyword">static</span> <span class="keywordtype">int</span> net_would_block( <span class="keywordtype">int</span> fd )</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> {</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment"> * Never return 'WOULD BLOCK' on a non-blocking socket</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span>( ( fcntl( fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordflow">switch</span>( errno )</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  {</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="preprocessor">#if defined EAGAIN</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="preprocessor"></span> <span class="keywordflow">case</span> EAGAIN:</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="preprocessor"></span><span class="preprocessor">#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="preprocessor"></span> <span class="keywordflow">case</span> EWOULDBLOCK:</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor"></span> <span class="keywordflow">return</span>( 1 );</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> <span class="preprocessor">#endif </span><span class="comment">/* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="comment"> * Accept a connection from a remote client</span></div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#aa7c66d2cf24804b92805eb6e598a9763">net_accept</a>( <span class="keywordtype">int</span> bind_fd, <span class="keywordtype">int</span> *client_fd, <span class="keywordtype">void</span> *client_ip )</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> {</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_IPV6)</span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="preprocessor"></span> <span class="keyword">struct </span>sockaddr_storage client_addr;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="preprocessor"></span> <span class="keyword">struct </span>sockaddr_in client_addr;</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="preprocessor">#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="preprocessor"> defined(_SOCKLEN_T_DECLARED)</span></div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="preprocessor"></span> socklen_t n = (socklen_t) <span class="keyword">sizeof</span>( client_addr );</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="preprocessor"></span> <span class="keywordtype">int</span> n = (int) <span class="keyword">sizeof</span>( client_addr );</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  *client_fd = (int) accept( bind_fd, (<span class="keyword">struct</span> sockaddr *)</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  &client_addr, &n );</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">if</span>( *client_fd < 0 )</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  {</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">if</span>( net_would_block( *client_fd ) != 0 )</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a5f74d0f93745d7b4a7d46a6b78c0fb4a">POLARSSL_ERR_NET_WANT_READ</a> );</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#ad82bbf5012b60516118c5b85e4a73db9">POLARSSL_ERR_NET_ACCEPT_FAILED</a> );</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span>( client_ip != NULL )</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  {</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_IPV6)</span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( client_addr.ss_family == AF_INET )</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  {</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keyword">struct </span>sockaddr_in *addr4 = (<span class="keyword">struct </span>sockaddr_in *) &client_addr;</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  memcpy( client_ip, &addr4->sin_addr.s_addr,</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keyword">sizeof</span>( addr4->sin_addr.s_addr ) );</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  }</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  {</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keyword">struct </span>sockaddr_in6 *addr6 = (<span class="keyword">struct </span>sockaddr_in6 *) &client_addr;</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  memcpy( client_ip, &addr6->sin6_addr.s6_addr,</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keyword">sizeof</span>( addr6->sin6_addr.s6_addr ) );</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  }</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="preprocessor"></span> memcpy( client_ip, &client_addr.sin_addr.s_addr,</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keyword">sizeof</span>( client_addr.sin_addr.s_addr ) );</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_HAVE_IPV6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> </div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> }</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> </div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"> * Set the socket blocking or non-blocking</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#a3b9985eaba07798c6f4d655fba05bb1b">net_set_block</a>( <span class="keywordtype">int</span> fd )</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> {</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="preprocessor"></span> u_long n = 0;</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">return</span>( ioctlsocket( fd, FIONBIO, &n ) );</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="preprocessor"></span> <span class="keywordflow">return</span>( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) & ~O_NONBLOCK ) );</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#a8d15cfb98905e57d9f031a75d4c1dbbb">net_set_nonblock</a>( <span class="keywordtype">int</span> fd )</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> {</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="preprocessor"></span> u_long n = 1;</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">return</span>( ioctlsocket( fd, FIONBIO, &n ) );</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"></span> <span class="keywordflow">return</span>( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) | O_NONBLOCK ) );</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> </div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="preprocessor">#if defined(POLARSSL_HAVE_TIME)</span></div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment"> * Portable usleep helper</span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="keywordtype">void</span> <a class="code" href="net_8h.html#a2bcef97961f70e97e4cd9ec3ff16a6a6">net_usleep</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> usec )</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> {</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">struct </span>timeval tv;</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  tv.tv_sec = 0;</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  tv.tv_usec = usec;</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  select( 0, NULL, NULL, NULL, &tv );</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> }</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_HAVE_TIME */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"> * Read at most 'len' characters</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#aa76688ccbf03470a6cfc61c025758e9f">net_recv</a>( <span class="keywordtype">void</span> *ctx, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len )</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> {</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordtype">int</span> fd = *((<span class="keywordtype">int</span> *) ctx);</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordtype">int</span> ret = read( fd, buf, len );</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keywordflow">if</span>( ret < 0 )</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  {</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">if</span>( net_would_block( fd ) != 0 )</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a5f74d0f93745d7b4a7d46a6b78c0fb4a">POLARSSL_ERR_NET_WANT_READ</a> );</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> </div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( WSAGetLastError() == WSAECONNRESET )</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#ab25ddd7b1e424e1168226dd268259360">POLARSSL_ERR_NET_CONN_RESET</a> );</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( errno == EPIPE || errno == ECONNRESET )</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#ab25ddd7b1e424e1168226dd268259360">POLARSSL_ERR_NET_CONN_RESET</a> );</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> </div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordflow">if</span>( errno == EINTR )</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a5f74d0f93745d7b4a7d46a6b78c0fb4a">POLARSSL_ERR_NET_WANT_READ</a> );</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a03130c59c475bf1e8a89cf97c28972c6">POLARSSL_ERR_NET_RECV_FAILED</a> );</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  }</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> }</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> </div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="comment"> * Write at most 'len' characters</span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="keywordtype">int</span> <a class="code" href="net_8h.html#ab14d74cc7497b93580c6a6ddb7c77561">net_send</a>( <span class="keywordtype">void</span> *ctx, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len )</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> {</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keywordtype">int</span> fd = *((<span class="keywordtype">int</span> *) ctx);</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordtype">int</span> ret = write( fd, buf, len );</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> </div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordflow">if</span>( ret < 0 )</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  {</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">if</span>( net_would_block( fd ) != 0 )</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a714269000de1543b4f4a3e8d6622a979">POLARSSL_ERR_NET_WANT_WRITE</a> );</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> </div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="preprocessor">#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \</span></div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="preprocessor"> !defined(EFI32)</span></div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( WSAGetLastError() == WSAECONNRESET )</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#ab25ddd7b1e424e1168226dd268259360">POLARSSL_ERR_NET_CONN_RESET</a> );</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( errno == EPIPE || errno == ECONNRESET )</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#ab25ddd7b1e424e1168226dd268259360">POLARSSL_ERR_NET_CONN_RESET</a> );</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> </div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="keywordflow">if</span>( errno == EINTR )</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a714269000de1543b4f4a3e8d6622a979">POLARSSL_ERR_NET_WANT_WRITE</a> );</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">return</span>( <a class="code" href="net_8h.html#a6a6129076b6fefa2d730b9173710f1fe">POLARSSL_ERR_NET_SEND_FAILED</a> );</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  }</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> }</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> </div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="comment"> * Gracefully close the connection</span></div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="keywordtype">void</span> <a class="code" href="net_8h.html#a1b0cf7ff43e2f8edb76e2f4724732cc6">net_close</a>( <span class="keywordtype">int</span> fd )</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> {</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  shutdown( fd, 2 );</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  close( fd );</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> }</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> </div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_NET_C */</span><span class="preprocessor"></span></div>
<div class="ttc" id="net_8h_html_a2bcef97961f70e97e4cd9ec3ff16a6a6"><div class="ttname"><a href="net_8h.html#a2bcef97961f70e97e4cd9ec3ff16a6a6">net_usleep</a></div><div class="ttdeci">void net_usleep(unsigned long usec)</div><div class="ttdoc">Portable usleep helper. </div></div>
<div class="ttc" id="net_8h_html_a8d15cfb98905e57d9f031a75d4c1dbbb"><div class="ttname"><a href="net_8h.html#a8d15cfb98905e57d9f031a75d4c1dbbb">net_set_nonblock</a></div><div class="ttdeci">int net_set_nonblock(int fd)</div><div class="ttdoc">Set the socket non-blocking. </div></div>
<div class="ttc" id="net_8h_html_a14395a416f051e26a9918052614b34d8"><div class="ttname"><a href="net_8h.html#a14395a416f051e26a9918052614b34d8">POLARSSL_ERR_NET_BIND_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_BIND_FAILED</div><div class="ttdoc">Binding of the socket failed. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00035">net.h:35</a></div></div>
<div class="ttc" id="net_8h_html_a03130c59c475bf1e8a89cf97c28972c6"><div class="ttname"><a href="net_8h.html#a03130c59c475bf1e8a89cf97c28972c6">POLARSSL_ERR_NET_RECV_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_RECV_FAILED</div><div class="ttdoc">Reading information from the socket failed. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00038">net.h:38</a></div></div>
<div class="ttc" id="net_8h_html_a714269000de1543b4f4a3e8d6622a979"><div class="ttname"><a href="net_8h.html#a714269000de1543b4f4a3e8d6622a979">POLARSSL_ERR_NET_WANT_WRITE</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_WANT_WRITE</div><div class="ttdoc">Connection requires a write call. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00042">net.h:42</a></div></div>
<div class="ttc" id="net_8h_html"><div class="ttname"><a href="net_8h.html">net.h</a></div><div class="ttdoc">Network communication functions. </div></div>
<div class="ttc" id="net_8h_html_ab14d74cc7497b93580c6a6ddb7c77561"><div class="ttname"><a href="net_8h.html#ab14d74cc7497b93580c6a6ddb7c77561">net_send</a></div><div class="ttdeci">int net_send(void *ctx, const unsigned char *buf, size_t len)</div><div class="ttdoc">Write at most &#39;len&#39; characters. </div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Configuration options (set of defines) </div></div>
<div class="ttc" id="net_8h_html_a1b0cf7ff43e2f8edb76e2f4724732cc6"><div class="ttname"><a href="net_8h.html#a1b0cf7ff43e2f8edb76e2f4724732cc6">net_close</a></div><div class="ttdeci">void net_close(int fd)</div><div class="ttdoc">Gracefully shutdown the connection. </div></div>
<div class="ttc" id="net_8h_html_ab25ddd7b1e424e1168226dd268259360"><div class="ttname"><a href="net_8h.html#ab25ddd7b1e424e1168226dd268259360">POLARSSL_ERR_NET_CONN_RESET</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_CONN_RESET</div><div class="ttdoc">Connection was reset by peer. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00040">net.h:40</a></div></div>
<div class="ttc" id="net_8h_html_a070a7665a1c2c3a5dc4d78aeef0f29de"><div class="ttname"><a href="net_8h.html#a070a7665a1c2c3a5dc4d78aeef0f29de">net_bind</a></div><div class="ttdeci">int net_bind(int *fd, const char *bind_ip, int port)</div><div class="ttdoc">Create a listening socket on bind_ip:port. </div></div>
<div class="ttc" id="net_8h_html_aa7c66d2cf24804b92805eb6e598a9763"><div class="ttname"><a href="net_8h.html#aa7c66d2cf24804b92805eb6e598a9763">net_accept</a></div><div class="ttdeci">int net_accept(int bind_fd, int *client_fd, void *client_ip)</div><div class="ttdoc">Accept a connection from a remote client. </div></div>
<div class="ttc" id="net_8h_html_aa316f63c8e1deda24d3ae1d146854474"><div class="ttname"><a href="net_8h.html#aa316f63c8e1deda24d3ae1d146854474">POLARSSL_ERR_NET_CONNECT_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_CONNECT_FAILED</div><div class="ttdoc">The connection to the given server / port failed. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00034">net.h:34</a></div></div>
<div class="ttc" id="net_8h_html_adc2420949d7ec4d71bc892bcdb9d1875"><div class="ttname"><a href="net_8h.html#adc2420949d7ec4d71bc892bcdb9d1875">POLARSSL_NET_LISTEN_BACKLOG</a></div><div class="ttdeci">#define POLARSSL_NET_LISTEN_BACKLOG</div><div class="ttdoc">The backlog that listen() should use. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00044">net.h:44</a></div></div>
<div class="ttc" id="net_8h_html_a6a6129076b6fefa2d730b9173710f1fe"><div class="ttname"><a href="net_8h.html#a6a6129076b6fefa2d730b9173710f1fe">POLARSSL_ERR_NET_SEND_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_SEND_FAILED</div><div class="ttdoc">Sending information through the socket failed. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00039">net.h:39</a></div></div>
<div class="ttc" id="net_8h_html_a5f74d0f93745d7b4a7d46a6b78c0fb4a"><div class="ttname"><a href="net_8h.html#a5f74d0f93745d7b4a7d46a6b78c0fb4a">POLARSSL_ERR_NET_WANT_READ</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_WANT_READ</div><div class="ttdoc">Connection requires a read call. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00041">net.h:41</a></div></div>
<div class="ttc" id="net_8h_html_ad82bbf5012b60516118c5b85e4a73db9"><div class="ttname"><a href="net_8h.html#ad82bbf5012b60516118c5b85e4a73db9">POLARSSL_ERR_NET_ACCEPT_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_ACCEPT_FAILED</div><div class="ttdoc">Could not accept the incoming connection. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00037">net.h:37</a></div></div>
<div class="ttc" id="net_8h_html_a49c549b21517d6f905eb9845224f2773"><div class="ttname"><a href="net_8h.html#a49c549b21517d6f905eb9845224f2773">net_connect</a></div><div class="ttdeci">int net_connect(int *fd, const char *host, int port)</div><div class="ttdoc">Initiate a TCP connection with host:port. </div></div>
<div class="ttc" id="net_8h_html_a3b9985eaba07798c6f4d655fba05bb1b"><div class="ttname"><a href="net_8h.html#a3b9985eaba07798c6f4d655fba05bb1b">net_set_block</a></div><div class="ttdeci">int net_set_block(int fd)</div><div class="ttdoc">Set the socket blocking. </div></div>
<div class="ttc" id="net_8h_html_aec186e276d741e5aad9d8b4cd7ab0efd"><div class="ttname"><a href="net_8h.html#aec186e276d741e5aad9d8b4cd7ab0efd">POLARSSL_ERR_NET_SOCKET_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_SOCKET_FAILED</div><div class="ttdoc">Failed to open a socket. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00033">net.h:33</a></div></div>
<div class="ttc" id="net_8h_html_a943010f94195f2f283a2b3d6ccea5422"><div class="ttname"><a href="net_8h.html#a943010f94195f2f283a2b3d6ccea5422">POLARSSL_ERR_NET_LISTEN_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_LISTEN_FAILED</div><div class="ttdoc">Could not listen on the socket. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00036">net.h:36</a></div></div>
<div class="ttc" id="net_8h_html_aa76688ccbf03470a6cfc61c025758e9f"><div class="ttname"><a href="net_8h.html#aa76688ccbf03470a6cfc61c025758e9f">net_recv</a></div><div class="ttdeci">int net_recv(void *ctx, unsigned char *buf, size_t len)</div><div class="ttdoc">Read at most &#39;len&#39; characters. </div></div>
<div class="ttc" id="net_8h_html_a8b8dc4d3104b157a2ade8da7831f48f1"><div class="ttname"><a href="net_8h.html#a8b8dc4d3104b157a2ade8da7831f48f1">POLARSSL_ERR_NET_UNKNOWN_HOST</a></div><div class="ttdeci">#define POLARSSL_ERR_NET_UNKNOWN_HOST</div><div class="ttdoc">Failed to get an IP address for the given hostname. </div><div class="ttdef"><b>Definition:</b> <a href="net_8h_source.html#l00032">net.h:32</a></div></div>
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