lqb
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rt-thread
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   <div id="projectname">lwIP
   &#160;<span id="projectnumber">2.1.2</span>
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   <div id="projectbrief">Lightweight IP stack</div>
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<div class="header">
  <div class="summary">
<a href="#define-members">Macros</a> &#124;
<a href="#func-members">Functions</a>  </div>
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<div class="title">def.h File Reference</div>  </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="arch_8h.html">lwip/arch.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="opt_8h.html">lwip/opt.h</a>&quot;</code><br />
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:acf56d3da92a0a7a8a62a617e793e948c"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="def_8h.html#acf56d3da92a0a7a8a62a617e793e948c">LWIP_MAKEU32</a>(a,  b,  c,  d)</td></tr>
<tr class="separator:acf56d3da92a0a7a8a62a617e793e948c"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ac49eb25570806fb51c329d4f86302cc2"><td class="memItemLeft" align="right" valign="top">u16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="def_8h.html#ac49eb25570806fb51c329d4f86302cc2">lwip_htons</a> (u16_t x)</td></tr>
<tr class="separator:ac49eb25570806fb51c329d4f86302cc2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a95e391e860b519b4f4f5c4979c9c9a37"><td class="memItemLeft" align="right" valign="top">u32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="def_8h.html#a95e391e860b519b4f4f5c4979c9c9a37">lwip_htonl</a> (u32_t x)</td></tr>
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<tr class="memitem:gaf15b4fbaaae5bb7f6da4301f3f979284"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sys__nonstandard.html#gaf15b4fbaaae5bb7f6da4301f3f979284">lwip_itoa</a> (char *result, size_t bufsize, int number)</td></tr>
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<tr class="memitem:ga997dcc49451121d4ed755b33bc7bd26a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sys__nonstandard.html#ga997dcc49451121d4ed755b33bc7bd26a">lwip_strnicmp</a> (const char *str1, const char *str2, size_t len)</td></tr>
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<tr class="memitem:ga263cbafcb697eff964139a9998a6668a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sys__nonstandard.html#ga263cbafcb697eff964139a9998a6668a">lwip_stricmp</a> (const char *str1, const char *str2)</td></tr>
<tr class="separator:ga263cbafcb697eff964139a9998a6668a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaeece028198cdaea2f0d2f1d691752c02"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sys__nonstandard.html#gaeece028198cdaea2f0d2f1d691752c02">lwip_strnstr</a> (const char *buffer, const char *token, size_t n)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>various utility macros </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="acf56d3da92a0a7a8a62a617e793e948c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acf56d3da92a0a7a8a62a617e793e948c">&#9670;&nbsp;</a></span>LWIP_MAKEU32</h2>

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          <td class="memname">#define LWIP_MAKEU32</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">a, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">b, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">c, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">d&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<b>Value:</b><div class="fragment"><div class="line">(((u32_t)((a) &amp; 0xff) &lt;&lt; 24) | \</div><div class="line">                               ((u32_t)((b) &amp; 0xff) &lt;&lt; 16) | \</div><div class="line">                               ((u32_t)((c) &amp; 0xff) &lt;&lt; 8)  | \</div><div class="line">                                (u32_t)((d) &amp; 0xff))</div></div><!-- fragment --><p>Create u32_t value from bytes </p>

</div>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a95e391e860b519b4f4f5c4979c9c9a37"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a95e391e860b519b4f4f5c4979c9c9a37">&#9670;&nbsp;</a></span>lwip_htonl()</h2>

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          <td class="memname">u32_t lwip_htonl </td>
          <td>(</td>
          <td class="paramtype">u32_t&#160;</td>
          <td class="paramname"><em>n</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Convert an u32_t from host- to network byte order.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">n</td><td>u32_t in host byte order </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>n in network byte order </dd></dl>

</div>
</div>
<a id="ac49eb25570806fb51c329d4f86302cc2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac49eb25570806fb51c329d4f86302cc2">&#9670;&nbsp;</a></span>lwip_htons()</h2>

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          <td class="memname">u16_t lwip_htons </td>
          <td>(</td>
          <td class="paramtype">u16_t&#160;</td>
          <td class="paramname"><em>n</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Convert an u16_t from host- to network byte order.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">n</td><td>u16_t in host byte order </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>n in network byte order </dd></dl>

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