/contrib/bind9/bin/tools/genrandom.html
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1<!-- 2 - Copyright (C) 2009-2012 Internet Systems Consortium, Inc. ("ISC") 3 - 4 - Permission to use, copy, modify, and/or distribute this software for any 5 - purpose with or without fee is hereby granted, provided that the above 6 - copyright notice and this permission notice appear in all copies. 7 - 8 - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 - PERFORMANCE OF THIS SOFTWARE. 15--> 16<!-- $Id$ --> 17<html> 18<head> 19<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 20<title>genrandom</title> 21<meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> 22</head> 23<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"> 24<a name="man.genrandom"></a><div class="titlepage"></div> 25<div class="refnamediv"> 26<h2>Name</h2> 27<p><span class="application">genrandom</span> — generate a file containing random data</p> 28</div> 29<div class="refsynopsisdiv"> 30<h2>Synopsis</h2> 31<div class="cmdsynopsis"><p><code class="command">genrandom</code> [<code class="option">-n <em class="replaceable"><code>number</code></em></code>] {<em class="replaceable"><code>size</code></em>} {<em class="replaceable"><code>filename</code></em>}</p></div> 32</div> 33<div class="refsect1" lang="en"> 34<a name="id2543370"></a><h2>DESCRIPTION</h2> 35<p> 36 <span><strong class="command">genrandom</strong></span> 37 generates a file or a set of files containing a specified quantity 38 of pseudo-random data, which can be used as a source of entropy for 39 other commands on systems with no random device. 40 </p> 41</div> 42<div class="refsect1" lang="en"> 43<a name="id2543383"></a><h2>ARGUMENTS</h2> 44<div class="variablelist"><dl> 45<dt><span class="term">-n <em class="replaceable"><code>number</code></em></span></dt> 46<dd><p> 47 In place of generating one file, generates <code class="option">number</code> 48 (from 2 to 9) files, appending <code class="option">number</code> to the name. 49 </p></dd> 50<dt><span class="term">size</span></dt> 51<dd><p> 52 The size of the file, in kilobytes, to generate. 53 </p></dd> 54<dt><span class="term">filename</span></dt> 55<dd><p> 56 The file name into which random data should be written. 57 </p></dd> 58</dl></div> 59</div> 60<div class="refsect1" lang="en"> 61<a name="id2543444"></a><h2>SEE ALSO</h2> 62<p> 63 <span class="citerefentry"><span class="refentrytitle">rand</span>(3)</span>, 64 <span class="citerefentry"><span class="refentrytitle">arc4random</span>(3)</span> 65 </p> 66</div> 67<div class="refsect1" lang="en"> 68<a name="id2543470"></a><h2>AUTHOR</h2> 69<p><span class="corpauthor">Internet Systems Consortium</span> 70 </p> 71</div> 72</div></body> 73</html>