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<div class="title">winscard_msg_srv.c</div> </div>
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<a href="winscard__msg__srv_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"> * MUSCLE SmartCard Development ( http://pcsclite.alioth.debian.org/pcsclite.html )</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) 2001-2004</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * David Corcoran <corcoran@musclecard.com></span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (C) 2003-2004</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Damien Sauveron <damien.sauveron@labri.fr></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Copyright (C) 2002-2010</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Ludovic Rousseau <ludovic.rousseau@free.fr></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">Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">modification, are permitted provided that the following conditions</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">are met:</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"></span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">1. Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</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="l00021"></a><span class="lineno"> 21</span> <span class="comment"> derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">Changes to this license can be made only by the copyright author with</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">explicit written consent.</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</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> <span class="comment"> * $Id: winscard_msg_srv.c 6851 2014-02-14 15:43:32Z rousseau $</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include "config.h"</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <fcntl.h></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include <sys/stat.h></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include <sys/socket.h></span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#include <sys/time.h></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include <sys/un.h></span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#include <sys/ioctl.h></span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#include <time.h></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#include <string.h></span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#ifdef HAVE_SYS_FILIO_H</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include <sys/filio.h></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#include "misc.h"</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#include "<a class="code" href="pcscd_8h.html">pcscd.h</a>"</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#include "sd-daemon.h"</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#include "<a class="code" href="winscard_8h.html">winscard.h</a>"</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#include "<a class="code" href="debuglog_8h.html">debuglog.h</a>"</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#include "<a class="code" href="winscard__msg_8h.html">winscard_msg.h</a>"</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c"> 76</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a> = 0;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">extern</span> <span class="keywordtype">char</span> AraKiri;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="winscard__msg__srv_8c.html#a7c421010b7e933a8ed46927e5b9316e8"> 90</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="winscard__msg__srv_8c.html#a7c421010b7e933a8ed46927e5b9316e8">ProcessCommonChannelRequest</a>(<span class="comment">/*@out@*/</span> uint32_t *pdwClientID)</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>  socklen_t clnt_len;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">int</span> new_sock;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">struct </span>sockaddr_un clnt_addr;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  clnt_len = <span class="keyword">sizeof</span>(clnt_addr);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> ((new_sock = accept(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a>, (<span class="keyword">struct</span> sockaddr *) &clnt_addr,</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  &clnt_len)) < 0)</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  Log2(PCSC_LOG_CRITICAL, <span class="stringliteral">"Accept on common socket: %s"</span>,</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  strerror(errno));</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</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>  *pdwClientID = new_sock;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="winscard__msg__srv_8c.html#a061a490f5d2103751eb6b64573b5fb9d"> 125</a></span> INTERNAL int32_t <a class="code" href="winscard__msg__srv_8c.html#a061a490f5d2103751eb6b64573b5fb9d">InitializeSocket</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">union</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">struct </span>sockaddr sa;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">struct </span>sockaddr_un un;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  } sa;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * Create the common shared connection socket</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> ((<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a> = socket(PF_UNIX, SOCK_STREAM, 0)) < 0)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  Log2(PCSC_LOG_CRITICAL, <span class="stringliteral">"Unable to create common socket: %s"</span>,</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  strerror(errno));</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</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>  memset(&sa, 0, <span class="keyword">sizeof</span> sa);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  sa.un.sun_family = AF_UNIX;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  strncpy(sa.un.sun_path, PCSCLITE_CSOCK_NAME, <span class="keyword">sizeof</span> sa.un.sun_path);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  (void)<span class="keyword">remove</span>(PCSCLITE_CSOCK_NAME);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (bind(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a>, &sa.sa, <span class="keyword">sizeof</span> sa) < 0)</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  Log2(PCSC_LOG_CRITICAL, <span class="stringliteral">"Unable to bind common socket: %s"</span>,</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  strerror(errno));</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> -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> </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (listen(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a>, 1) < 0)</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  Log2(PCSC_LOG_CRITICAL, <span class="stringliteral">"Unable to listen common socket: %s"</span>,</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  strerror(errno));</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> -1;</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"> * Chmod the public entry channel</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>  (void)chmod(PCSCLITE_CSOCK_NAME, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);</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="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="winscard__msg__srv_8c.html#a19421e89e75b59a37552dc854ca9aa4e"> 182</a></span> INTERNAL int32_t <a class="code" href="winscard__msg__srv_8c.html#a19421e89e75b59a37552dc854ca9aa4e">ListenExistingSocket</a>(<span class="keywordtype">int</span> fd)</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> {</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> (!sd_is_socket(fd, AF_UNIX, SOCK_STREAM, -1))</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  Log1(PCSC_LOG_CRITICAL, <span class="stringliteral">"Passed FD is not an UNIX socket"</span>);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> -1;</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> </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a> = fd;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor">#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#define DO_TIMEOUT</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="winscard__msg__srv_8c.html#a187cf841551d3e7b97e23d73067ec2d3"> 210</a></span> INTERNAL int32_t <a class="code" href="winscard__msg__srv_8c.html#a187cf841551d3e7b97e23d73067ec2d3">ProcessEventsServer</a>(uint32_t *pdwClientID)</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>  fd_set read_fd;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">int</span> selret;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="preprocessor">#ifdef DO_TIMEOUT</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">struct </span>timeval tv;</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>  tv.tv_sec = 1;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  tv.tv_usec = 0;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="preprocessor">#endif</span></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>  FD_ZERO(&read_fd);</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> * Set up the bit masks for select</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  FD_SET(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a>, &read_fd);</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  selret = select(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a> + 1, &read_fd, (fd_set *) NULL,</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  (fd_set *) NULL,</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> #ifdef DO_TIMEOUT</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  &tv</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> #<span class="keywordflow">else</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  NULL</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> #endif</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  );</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> (selret < 0)</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  {</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (EINTR == errno)</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> -2;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  Log2(PCSC_LOG_CRITICAL, <span class="stringliteral">"Select returns with failure: %s"</span>,</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  strerror(errno));</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">return</span> -1;</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="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> (selret == 0)</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="comment">/* timeout. On *BSD only */</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">return</span> 2;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * A common pipe packet has arrived - it could be a new application</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">if</span> (FD_ISSET(<a class="code" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a>, &read_fd))</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  {</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  Log1(PCSC_LOG_DEBUG, <span class="stringliteral">"Common channel packet arrival"</span>);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span> (<a class="code" href="winscard__msg__srv_8c.html#a7c421010b7e933a8ed46927e5b9316e8">ProcessCommonChannelRequest</a>(pdwClientID) == -1)</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  Log2(PCSC_LOG_ERROR,</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="stringliteral">"error in ProcessCommonChannelRequest: %d"</span>, *pdwClientID);</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  Log2(PCSC_LOG_DEBUG,</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="stringliteral">"ProcessCommonChannelRequest detects: %d"</span>, *pdwClientID);</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> 0;</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> </div>
<div class="ttc" id="winscard__msg__srv_8c_html_a7c421010b7e933a8ed46927e5b9316e8"><div class="ttname"><a href="winscard__msg__srv_8c.html#a7c421010b7e933a8ed46927e5b9316e8">ProcessCommonChannelRequest</a></div><div class="ttdeci">static int ProcessCommonChannelRequest(uint32_t *pdwClientID)</div><div class="ttdoc">Accepts a Client connection. </div><div class="ttdef"><b>Definition:</b> <a href="winscard__msg__srv_8c_source.html#l00090">winscard_msg_srv.c:90</a></div></div>
<div class="ttc" id="winscard__msg__srv_8c_html_a19421e89e75b59a37552dc854ca9aa4e"><div class="ttname"><a href="winscard__msg__srv_8c.html#a19421e89e75b59a37552dc854ca9aa4e">ListenExistingSocket</a></div><div class="ttdeci">INTERNAL int32_t ListenExistingSocket(int fd)</div><div class="ttdoc">Acquires a socket passed in from systemd. </div><div class="ttdef"><b>Definition:</b> <a href="winscard__msg__srv_8c_source.html#l00182">winscard_msg_srv.c:182</a></div></div>
<div class="ttc" id="winscard__msg_8h_html"><div class="ttname"><a href="winscard__msg_8h.html">winscard_msg.h</a></div><div class="ttdoc">This defines some structures and #defines to be used over the transport layer. </div></div>
<div class="ttc" id="winscard__msg__srv_8c_html_a061a490f5d2103751eb6b64573b5fb9d"><div class="ttname"><a href="winscard__msg__srv_8c.html#a061a490f5d2103751eb6b64573b5fb9d">InitializeSocket</a></div><div class="ttdeci">INTERNAL int32_t InitializeSocket(void)</div><div class="ttdoc">Prepares the communication channel used by the server to talk to the clients. </div><div class="ttdef"><b>Definition:</b> <a href="winscard__msg__srv_8c_source.html#l00125">winscard_msg_srv.c:125</a></div></div>
<div class="ttc" id="winscard__msg__srv_8c_html_a840eb2cc63fe5b38ec8edb835bc7c40c"><div class="ttname"><a href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a></div><div class="ttdeci">static int commonSocket</div><div class="ttdoc">Socket to a file, used for clients-server comminication. </div><div class="ttdef"><b>Definition:</b> <a href="winscard__msg__srv_8c_source.html#l00076">winscard_msg_srv.c:76</a></div></div>
<div class="ttc" id="pcscd_8h_html"><div class="ttname"><a href="pcscd_8h.html">pcscd.h</a></div><div class="ttdoc">This keeps a list of defines for pcsc-lite. </div></div>
<div class="ttc" id="winscard__msg__srv_8c_html_a187cf841551d3e7b97e23d73067ec2d3"><div class="ttname"><a href="winscard__msg__srv_8c.html#a187cf841551d3e7b97e23d73067ec2d3">ProcessEventsServer</a></div><div class="ttdeci">INTERNAL int32_t ProcessEventsServer(uint32_t *pdwClientID)</div><div class="ttdoc">Looks for messages sent by clients. </div><div class="ttdef"><b>Definition:</b> <a href="winscard__msg__srv_8c_source.html#l00210">winscard_msg_srv.c:210</a></div></div>
<div class="ttc" id="winscard_8h_html"><div class="ttname"><a href="winscard_8h.html">winscard.h</a></div><div class="ttdoc">This handles smart card reader communications. </div></div>
<div class="ttc" id="debuglog_8h_html"><div class="ttname"><a href="debuglog_8h.html">debuglog.h</a></div><div class="ttdoc">This handles debugging. </div></div>
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