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rt-thread
tükrözi: https://gitee.com/rtthread/rt-thread.git


			
				
					
						
						
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<h1>apps/telnetd/shell.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001  <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2003, Adam Dunkels.</span>
<a name="l00003"></a>00003 <span class="comment"> * All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00006"></a>00006 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00007"></a>00007 <span class="comment"> * are met:</span>
<a name="l00008"></a>00008 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00009"></a>00009 <span class="comment"> *    notice, this list of conditions and the following disclaimer.</span>
<a name="l00010"></a>00010 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> *    notice, this list of conditions and the following disclaimer in the</span>
<a name="l00012"></a>00012 <span class="comment"> *    documentation and/or other materials provided with the distribution.</span>
<a name="l00013"></a>00013 <span class="comment"> * 3. The name of the author may not be used to endorse or promote</span>
<a name="l00014"></a>00014 <span class="comment"> *    products derived from this software without specific prior</span>
<a name="l00015"></a>00015 <span class="comment"> *    written permission.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS</span>
<a name="l00018"></a>00018 <span class="comment"> * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED</span>
<a name="l00019"></a>00019 <span class="comment"> * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
<a name="l00020"></a>00020 <span class="comment"> * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY</span>
<a name="l00021"></a>00021 <span class="comment"> * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span>
<a name="l00022"></a>00022 <span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE</span>
<a name="l00023"></a>00023 <span class="comment"> * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span>
<a name="l00024"></a>00024 <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,</span>
<a name="l00025"></a>00025 <span class="comment"> * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
<a name="l00026"></a>00026 <span class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00027"></a>00027 <span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00028"></a>00028 <span class="comment"> *</span>
<a name="l00029"></a>00029 <span class="comment"> * This file is part of the uIP TCP/IP stack.</span>
<a name="l00030"></a>00030 <span class="comment"> *</span>
<a name="l00031"></a>00031 <span class="comment"> * $Id: shell.c,v 1.1 2006/06/07 09:43:54 adam Exp $</span>
<a name="l00032"></a>00032 <span class="comment"> *</span>
<a name="l00033"></a>00033 <span class="comment"> */</span>
<a name="l00034"></a>00034 
<a name="l00035"></a>00035 <span class="preprocessor">#include "<a class="code" href="a00107.html">shell.h</a>"</span>
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 <span class="preprocessor">#include &lt;string.h&gt;</span>
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="keyword">struct </span>ptentry {
<a name="l00040"></a>00040   <span class="keywordtype">char</span> *commandstr;
<a name="l00041"></a>00041   void (* pfunc)(<span class="keywordtype">char</span> *str);
<a name="l00042"></a>00042 };
<a name="l00043"></a>00043 
<a name="l00044"></a>00044 <span class="preprocessor">#define SHELL_PROMPT "uIP 1.0&gt; "</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span>
<a name="l00046"></a>00046 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00047"></a>00047 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00048"></a>00048 parse(<span class="keyword">register</span> <span class="keywordtype">char</span> *str, <span class="keyword">struct</span> ptentry *t)
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050   <span class="keyword">struct </span>ptentry *p;
<a name="l00051"></a>00051   <span class="keywordflow">for</span>(p = t; p-&gt;commandstr != <a class="code" href="a00160.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; ++p) {
<a name="l00052"></a>00052     <span class="keywordflow">if</span>(strncmp(p-&gt;commandstr, str, strlen(p-&gt;commandstr)) == 0) {
<a name="l00053"></a>00053       <span class="keywordflow">break</span>;
<a name="l00054"></a>00054     }
<a name="l00055"></a>00055   }
<a name="l00056"></a>00056 
<a name="l00057"></a>00057   p-&gt;pfunc(str);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00060"></a>00060 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00061"></a>00061 inttostr(<span class="keyword">register</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i)
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063   str[0] = <span class="charliteral">'0'</span> + i / 100;
<a name="l00064"></a>00064   <span class="keywordflow">if</span>(str[0] == <span class="charliteral">'0'</span>) {
<a name="l00065"></a>00065     str[0] = <span class="charliteral">' '</span>;
<a name="l00066"></a>00066   }
<a name="l00067"></a>00067   str[1] = <span class="charliteral">'0'</span> + (i / 10) % 10;
<a name="l00068"></a>00068   <span class="keywordflow">if</span>(str[0] == <span class="charliteral">' '</span> &amp;&amp; str[1] == <span class="charliteral">'0'</span>) {
<a name="l00069"></a>00069     str[1] = <span class="charliteral">' '</span>;
<a name="l00070"></a>00070   }
<a name="l00071"></a>00071   str[2] = <span class="charliteral">'0'</span> + i % 10;
<a name="l00072"></a>00072   str[3] = <span class="charliteral">' '</span>;
<a name="l00073"></a>00073   str[4] = 0;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00076"></a>00076 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00077"></a>00077 help(<span class="keywordtype">char</span> *str)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079   shell_output(<span class="stringliteral">"Available commands:"</span>, <span class="stringliteral">""</span>);
<a name="l00080"></a>00080   shell_output(<span class="stringliteral">"stats   - show network statistics"</span>, <span class="stringliteral">""</span>);
<a name="l00081"></a>00081   shell_output(<span class="stringliteral">"conn    - show TCP connections"</span>, <span class="stringliteral">""</span>);
<a name="l00082"></a>00082   shell_output(<span class="stringliteral">"help, ? - show help"</span>, <span class="stringliteral">""</span>);
<a name="l00083"></a>00083   shell_output(<span class="stringliteral">"exit    - exit shell"</span>, <span class="stringliteral">""</span>);
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00086"></a>00086 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00087"></a>00087 unknown(<span class="keywordtype">char</span> *str)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089   <span class="keywordflow">if</span>(strlen(str) &gt; 0) {
<a name="l00090"></a>00090     shell_output(<span class="stringliteral">"Unknown command: "</span>, str);
<a name="l00091"></a>00091   }
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00094"></a>00094 <span class="keyword">static</span> <span class="keyword">struct </span>ptentry parsetab[] =
<a name="l00095"></a>00095   {{<span class="stringliteral">"stats"</span>, help},
<a name="l00096"></a>00096    {<span class="stringliteral">"conn"</span>, help},
<a name="l00097"></a>00097    {<span class="stringliteral">"help"</span>, help},
<a name="l00098"></a>00098    {<span class="stringliteral">"exit"</span>, shell_quit},
<a name="l00099"></a>00099    {<span class="stringliteral">"?"</span>, help},
<a name="l00100"></a>00100 
<a name="l00101"></a>00101    <span class="comment">/* Default action */</span>
<a name="l00102"></a>00102    {<a class="code" href="a00160.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>, unknown}};
<a name="l00103"></a>00103 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00104"></a>00104 <span class="keywordtype">void</span>
<a name="l00105"></a><a class="code" href="a00107.html#69b075ef7e4d7bcf5a903d3d75baac02">00105</a> <a class="code" href="a00107.html#69b075ef7e4d7bcf5a903d3d75baac02">shell_init</a>(<span class="keywordtype">void</span>)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00109"></a>00109 <span class="keywordtype">void</span>
<a name="l00110"></a><a class="code" href="a00107.html#d1f18f739da7703628c3663209463a0d">00110</a> <a class="code" href="a00107.html#d1f18f739da7703628c3663209463a0d">shell_start</a>(<span class="keywordtype">void</span>)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112   shell_output(<span class="stringliteral">"uIP command shell"</span>, <span class="stringliteral">""</span>);
<a name="l00113"></a>00113   shell_output(<span class="stringliteral">"Type '?' and return for help"</span>, <span class="stringliteral">""</span>);
<a name="l00114"></a>00114   shell_prompt(SHELL_PROMPT);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="comment">/*---------------------------------------------------------------------------*/</span>
<a name="l00117"></a>00117 <span class="keywordtype">void</span>
<a name="l00118"></a><a class="code" href="a00107.html#86beee1f69d05b16022dfb430470e9ce">00118</a> <a class="code" href="a00107.html#86beee1f69d05b16022dfb430470e9ce">shell_input</a>(<span class="keywordtype">char</span> *cmd)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120   parse(cmd, parsetab);
<a name="l00121"></a>00121   shell_prompt(SHELL_PROMPT);
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 <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;
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