1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>strncat</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="ch02s02.html" title="String Manipulation"><link rel="prev" href="API-strcat.html" title="strcat"><link rel="next" href="API-strlcat.html" title="strlcat"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">strncat</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-strcat.html">Prev</a> </td><th width="60%" align="center">String Manipulation</th><td width="20%" align="right"> <a accesskey="n" href="API-strlcat.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-strncat"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>strncat — 2 Append a length-limited, C-string to another 3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">char * <b class="fsfunc">strncat </b>(</code></td><td>char * <var class="pdparam">dest</var>, </td></tr><tr><td> </td><td>const char * <var class="pdparam">src</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">count</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idp1122845612"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dest</code></em></span></dt><dd><p> 4 The string to be appended to 5 </p></dd><dt><span class="term"><em class="parameter"><code>src</code></em></span></dt><dd><p> 6 The string to append to it 7 </p></dd><dt><span class="term"><em class="parameter"><code>count</code></em></span></dt><dd><p> 8 The maximum numbers of bytes to copy 9 </p></dd></dl></div></div><div class="refsect1"><a name="idp1122849196"></a><h2>Description</h2><p> 10 Note that in contrast to <code class="function">strncpy</code>, <code class="function">strncat</code> ensures the result is 11 terminated. 12</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-strcat.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch02s02.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-strlcat.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">strcat</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">strlcat</span></td></tr></table></div></body></html> 13