a00178.html

最新的免费嵌入式系统TCP/IP协议栈！

<a name="l00233"></a>00233 newdata(<span class="keywordtype">void</span>)
<a name="l00234"></a>00234 {
<a name="l00235"></a>00235   <a class="code" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> len;
<a name="l00236"></a>00236   <a class="code" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> c;
<a name="l00237"></a>00237   <span class="keywordtype">char</span> *dataptr;
<a name="l00238"></a>00238     
<a name="l00239"></a>00239   
<a name="l00240"></a>00240   len = <a class="code" href="a00147.html#g1a1bc437c09ddef238abab41d77c3177">uip_datalen</a>();
<a name="l00241"></a>00241   dataptr = (<span class="keywordtype">char</span> *)<a class="code" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a>;
<a name="l00242"></a>00242   
<a name="l00243"></a>00243   <span class="keywordflow">while</span>(len &gt; 0 &amp;&amp; s.<a class="code" href="a00086.html#5eced097547fd3fac4ba2a255493d921">bufptr</a> &lt; <span class="keyword">sizeof</span>(s.<a class="code" href="a00086.html#54a466311575a727830a92a6c3621cb2">buf</a>)) {
<a name="l00244"></a>00244     c = *dataptr;
<a name="l00245"></a>00245     ++dataptr;
<a name="l00246"></a>00246     --len;
<a name="l00247"></a>00247     <span class="keywordflow">switch</span>(s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a>) {
<a name="l00248"></a>00248     <span class="keywordflow">case</span> STATE_IAC:
<a name="l00249"></a>00249       <span class="keywordflow">if</span>(c == TELNET_IAC) {
<a name="l00250"></a>00250         get_char(c);
<a name="l00251"></a>00251         s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00252"></a>00252       } <span class="keywordflow">else</span> {
<a name="l00253"></a>00253         <span class="keywordflow">switch</span>(c) {
<a name="l00254"></a>00254         <span class="keywordflow">case</span> TELNET_WILL:
<a name="l00255"></a>00255           s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_WILL;
<a name="l00256"></a>00256           <span class="keywordflow">break</span>;
<a name="l00257"></a>00257         <span class="keywordflow">case</span> TELNET_WONT:
<a name="l00258"></a>00258           s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_WONT;
<a name="l00259"></a>00259           <span class="keywordflow">break</span>;
<a name="l00260"></a>00260         <span class="keywordflow">case</span> TELNET_DO:
<a name="l00261"></a>00261           s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_DO;
<a name="l00262"></a>00262           <span class="keywordflow">break</span>;
<a name="l00263"></a>00263         <span class="keywordflow">case</span> TELNET_DONT:
<a name="l00264"></a>00264           s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_DONT;
<a name="l00265"></a>00265           <span class="keywordflow">break</span>;
<a name="l00266"></a>00266         <span class="keywordflow">default</span>:
<a name="l00267"></a>00267           s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00268"></a>00268           <span class="keywordflow">break</span>;
<a name="l00269"></a>00269         }
<a name="l00270"></a>00270       }
<a name="l00271"></a>00271       <span class="keywordflow">break</span>;
<a name="l00272"></a>00272     <span class="keywordflow">case</span> STATE_WILL:
<a name="l00273"></a>00273       <span class="comment">/* Reply with a DONT */</span>
<a name="l00274"></a>00274       sendopt(TELNET_DONT, c);
<a name="l00275"></a>00275       s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00276"></a>00276       <span class="keywordflow">break</span>;
<a name="l00277"></a>00277       
<a name="l00278"></a>00278     <span class="keywordflow">case</span> STATE_WONT:
<a name="l00279"></a>00279       <span class="comment">/* Reply with a DONT */</span>
<a name="l00280"></a>00280       sendopt(TELNET_DONT, c);
<a name="l00281"></a>00281       s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00282"></a>00282       <span class="keywordflow">break</span>;
<a name="l00283"></a>00283     <span class="keywordflow">case</span> STATE_DO:
<a name="l00284"></a>00284       <span class="comment">/* Reply with a WONT */</span>
<a name="l00285"></a>00285       sendopt(TELNET_WONT, c);
<a name="l00286"></a>00286       s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00287"></a>00287       <span class="keywordflow">break</span>;
<a name="l00288"></a>00288     <span class="keywordflow">case</span> STATE_DONT:
<a name="l00289"></a>00289       <span class="comment">/* Reply with a WONT */</span>
<a name="l00290"></a>00290       sendopt(TELNET_WONT, c);
<a name="l00291"></a>00291       s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00292"></a>00292       <span class="keywordflow">break</span>;
<a name="l00293"></a>00293     <span class="keywordflow">case</span> STATE_NORMAL:
<a name="l00294"></a>00294       <span class="keywordflow">if</span>(c == TELNET_IAC) {
<a name="l00295"></a>00295         s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_IAC;
<a name="l00296"></a>00296       } <span class="keywordflow">else</span> {
<a name="l00297"></a>00297         get_char(c);
<a name="l00298"></a>00298       }
<a name="l00299"></a>00299       <span class="keywordflow">break</span>;
<a name="l00300"></a>00300     }
<a name="l00301"></a>00301 
<a name="l00302"></a>00302     
<a name="l00303"></a>00303   }
<a name="l00304"></a>00304   
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00307"></a>00307 <span class="keywordtype">void</span>
<a name="l00308"></a>00308 telnetd_appcall(<span class="keywordtype">void</span>)
<a name="l00309"></a>00309 {
<a name="l00310"></a>00310   <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;
<a name="l00311"></a>00311   <span class="keywordflow">if</span>(<a class="code" href="a00147.html#gdb971fb1525d0c5002f52125b05f3218">uip_connected</a>()) {
<a name="l00312"></a>00312     <span class="comment">/*    tcp_markconn(uip_conn, &amp;s);*/</span>
<a name="l00313"></a>00313     <span class="keywordflow">for</span>(i = 0; i &lt; TELNETD_CONF_NUMLINES; ++i) {
<a name="l00314"></a>00314       s.<a class="code" href="a00086.html#cca775e46d4405b7775b328f7694f7e7">lines</a>[i] = <a class="code" href="a00160.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00315"></a>00315     }
<a name="l00316"></a>00316     s.<a class="code" href="a00086.html#5eced097547fd3fac4ba2a255493d921">bufptr</a> = 0;
<a name="l00317"></a>00317     s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00318"></a>00318 
<a name="l00319"></a>00319     <a class="code" href="a00107.html#d1f18f739da7703628c3663209463a0d">shell_start</a>();
<a name="l00320"></a>00320   }
<a name="l00321"></a>00321 
<a name="l00322"></a>00322   <span class="keywordflow">if</span>(s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> == STATE_CLOSE) {
<a name="l00323"></a>00323     s.<a class="code" href="a00086.html#41bf109b6a45328d5744c0a76563fb6c">state</a> = STATE_NORMAL;
<a name="l00324"></a>00324     <a class="code" href="a00147.html#g61db1dcb7c760e4dd5d60bf4e5576dca">uip_close</a>();
<a name="l00325"></a>00325     <span class="keywordflow">return</span>;
<a name="l00326"></a>00326   }
<a name="l00327"></a>00327   
<a name="l00328"></a>00328   <span class="keywordflow">if</span>(<a class="code" href="a00147.html#gef6c4140c632b6a406779342cf3b6eb6">uip_closed</a>() ||
<a name="l00329"></a>00329      <a class="code" href="a00147.html#gfbd5fc486dfdf6bf6fc9db52b1f418c4">uip_aborted</a>() ||
<a name="l00330"></a>00330      <a class="code" href="a00147.html#g7b2ac4b18bd2ac3912fe67b3b17158c3">uip_timedout</a>()) {
<a name="l00331"></a>00331     closed();
<a name="l00332"></a>00332   }
<a name="l00333"></a>00333   
<a name="l00334"></a>00334   <span class="keywordflow">if</span>(<a class="code" href="a00147.html#gde6634974418e3240c212b9b16864368">uip_acked</a>()) {
<a name="l00335"></a>00335     acked();
<a name="l00336"></a>00336   }
<a name="l00337"></a>00337   
<a name="l00338"></a>00338   <span class="keywordflow">if</span>(<a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>()) {
<a name="l00339"></a>00339     newdata();
<a name="l00340"></a>00340   }
<a name="l00341"></a>00341   
<a name="l00342"></a>00342   <span class="keywordflow">if</span>(<a class="code" href="a00147.html#ga8933ad15a2e2947dae4a5cff50e6007">uip_rexmit</a>() ||
<a name="l00343"></a>00343      <a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>() ||
<a name="l00344"></a>00344      <a class="code" href="a00147.html#gde6634974418e3240c212b9b16864368">uip_acked</a>() ||
<a name="l00345"></a>00345      <a class="code" href="a00147.html#gdb971fb1525d0c5002f52125b05f3218">uip_connected</a>() ||
<a name="l00346"></a>00346      <a class="code" href="a00147.html#g58bb90796c1cdad3aac2ecf44d87b20e">uip_poll</a>()) {
<a name="l00347"></a>00347     senddata();
<a name="l00348"></a>00348   }
<a name="l00349"></a>00349 }
<a name="l00350"></a>00350 <span class="comment">/*---------------------------------------------------------------------------*/</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jun 12 10:23:01 2006 for uIP 1.0 by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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