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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Ruby: missing/strlcat.c Source File</title> <link href="../../tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="../../jquery.js"></script> <script type="text/javascript" src="../../dynsections.js"></script> <link href="../../doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Ruby  <span id="projectnumber">2.1.10p492(2016-04-01revision54464)</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <script type="text/javascript" src="../../menudata.js"></script> <script type="text/javascript" src="../../menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('../../',false,false,'search.php','Search'); }); /* @license-end */</script> <div id="main-nav"></div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="../../dir_f3bfeebb553c3f6ecfb19202628b4493.html">missing</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">strlcat.c</div> </div> </div><!--header--> <div class="contents"> <a href="../../d5/de6/strlcat_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">/* $OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $ */</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</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) 1998 Todd C. Miller <Todd.Miller@courtesan.com></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * All rights reserved.</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * modification, are permitted provided that the following conditions</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * are met:</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * documentation and/or other materials provided with the distribution.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</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="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> */</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#if defined(LIBC_SCCS) && !defined(lint)</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">static</span> <span class="keywordtype">char</span> *rcsid = <span class="stringliteral">"$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $"</span>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif </span><span class="comment">/* LIBC_SCCS and not lint */</span><span class="preprocessor"></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="../../d3/d90/missing_8h.html">ruby/missing.h</a>"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <sys/types.h></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</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> <span class="comment"> * Appends src to string dst of size siz (unlike strncat, siz is the</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * full size of dst, not space left). At most siz-1 characters</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * will be copied. Always NUL terminates (unless siz <= strlen(dst)).</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * Returns strlen(src) + MIN(siz, strlen(initial dst)).</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * If retval >= siz, truncation occurred.</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> */</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">size_t</span></div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="../../d5/de6/strlcat_8c.html#ae85b825a7f3d4dcf136b85949b646a46"> 46</a></span> <a class="code" href="../../d5/de6/strlcat_8c.html#ae85b825a7f3d4dcf136b85949b646a46">strlcat</a>(dst, src, siz)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">char</span> *dst;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *src;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">size_t</span> siz;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">register</span> <span class="keywordtype">char</span> *d = dst;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">register</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *s = src;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">register</span> <span class="keywordtype">size_t</span> n = siz;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">size_t</span> dlen;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">/* Find the end of dst and adjust bytes left but don't go past end */</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">while</span> (n-- != 0 && *d != <span class="charliteral">'\0'</span>)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  d++;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  dlen = d - dst;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  n = siz - dlen;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (n == 0)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span>(dlen + <a class="code" href="../../d6/d7b/strchr_8c.html#a219836f542ce53545052bed5353820ca">strlen</a>(s));</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">while</span> (*s != <span class="charliteral">'\0'</span>) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">if</span> (n != 1) {</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  *d++ = *s;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  n--;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  s++;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  *d = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span>(dlen + (s - src)); <span class="comment">/* count does not include NUL */</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> }</div><div class="ttc" id="strchr_8c_html_a219836f542ce53545052bed5353820ca"><div class="ttname"><a href="../../d6/d7b/strchr_8c.html#a219836f542ce53545052bed5353820ca">strlen</a></div><div class="ttdeci">size_t strlen(const char *)</div></div> <div class="ttc" id="missing_8h_html"><div class="ttname"><a href="../../d3/d90/missing_8h.html">missing.h</a></div></div> <div class="ttc" id="strlcat_8c_html_ae85b825a7f3d4dcf136b85949b646a46"><div class="ttname"><a href="../../d5/de6/strlcat_8c.html#ae85b825a7f3d4dcf136b85949b646a46">strlcat</a></div><div class="ttdeci">size_t strlcat(char *dst, const char *src, size_t siz)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/de6/strlcat_8c_source.html#l00046">strlcat.c:46</a></div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="../../doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>
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