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129 lines
4.5 KiB
HTML
129 lines
4.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Performs a tcpwrap check</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.tcpwrap-check" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">tcpwrap_check</h1>
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<p class="verinfo">(PECL tcpwrap >= 0.1.0)</p><p class="refpurpose"><span class="refname">tcpwrap_check</span> — <span class="dc-title">Performs a tcpwrap check</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.tcpwrap-check-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>tcpwrap_check</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$daemon</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$address</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$user</code></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$nodns</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
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]] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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This function consults the <var class="filename">/etc/hosts.allow</var> and
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<var class="filename">/etc/hosts.deny</var> files to check if access to service
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<code class="parameter">daemon</code> should be granted or denied for a client.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.tcpwrap-check-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">daemon</code></dt>
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<dd>
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<p class="para">
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The service name.
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</p>
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</dd>
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<dt>
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<code class="parameter">address</code></dt>
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<dd>
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<p class="para">
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The client remote address. Can be either an IP address or a domain name.
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</p>
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</dd>
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<dt>
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<code class="parameter">user</code></dt>
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<dd>
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<p class="para">
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An optional user name.
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</p>
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</dd>
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<dt>
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<code class="parameter">nodns</code></dt>
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<dd>
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<p class="para">
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If <code class="parameter">address</code> looks like domain name then DNS is
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used to resolve it to IP address; set <code class="parameter">nodns</code> to
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<strong><code>TRUE</code></strong> to avoid this.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.tcpwrap-check-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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This function returns <strong><code>TRUE</code></strong> if access should be granted, <strong><code>FALSE</code></strong> otherwise.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.tcpwrap-check-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-5678">
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<p><strong>Example #1 Deny all connections from localhost</strong></p>
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<div class="example-contents"><p>
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If your <var class="filename">/etc/hosts.deny</var> file contains:
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</p></div>
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<div class="example-contents screen">
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<div class="examplescode"><pre class="examplescode">php: 127.0.0.1</pre>
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</div>
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</div>
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<div class="example-contents"><p>
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And your code looks like:
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">tcpwrap_check</span><span style="color: #007700">(</span><span style="color: #DD0000">'php'</span><span style="color: #007700">, </span><span style="color: #0000BB">$_SERVER</span><span style="color: #007700">[</span><span style="color: #DD0000">'REMOTE_ADDR'</span><span style="color: #007700">])) {<br /> die(</span><span style="color: #DD0000">'You are not welcome here'</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.tcpwrap-check-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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For more details please consult hosts_access(3) man page.
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</p>
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</div>
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</div></div></div></body></html> |