mirror of
https://github.com/sigmasternchen/php-doc-en
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fc9e379fd8
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@315005 c90b9560-bf6c-de11-be94-00142212c4b1
123 lines
3.3 KiB
XML
123 lines
3.3 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.tcpwrap-check" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>tcpwrap_check</refname>
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<refpurpose>Performs a tcpwrap check</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>bool</type><methodname>tcpwrap_check</methodname>
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<methodparam><type>string</type><parameter>daemon</parameter></methodparam>
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<methodparam><type>string</type><parameter>address</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>user</parameter></methodparam>
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<methodparam choice="opt"><type>bool</type><parameter>nodns</parameter><initializer>false</initializer></methodparam>
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</methodsynopsis>
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<para>
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This function consults the <filename>/etc/hosts.allow</filename> and
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<filename>/etc/hosts.deny</filename> files to check if access to service
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<parameter>daemon</parameter> should be granted or denied for a client.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>daemon</parameter></term>
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<listitem>
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<para>
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The service name.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>address</parameter></term>
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<listitem>
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<para>
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The client remote address. Can be either an IP address or a domain name.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>user</parameter></term>
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<listitem>
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<para>
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An optional user name.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>nodns</parameter></term>
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<listitem>
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<para>
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If <parameter>address</parameter> looks like domain name then DNS is
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used to resolve it to IP address; set <parameter>nodns</parameter> to
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&true; to avoid this.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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This function returns &true; if access should be granted, &false; otherwise.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title>Deny all connections from localhost</title>
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<para>
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If your <filename>/etc/hosts.deny</filename> file contains:
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</para>
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<screen>
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<![CDATA[
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php: 127.0.0.1
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]]>
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</screen>
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<para>
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And your code looks like:
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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if (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) {
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die('You are not welcome here');
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}
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?>
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]]>
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</programlisting>
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</example>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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For more details please consult hosts_access(3) man page.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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