1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.4 $ -->
<!-- Generated by xml_proto.php v2.0. Found in /scripts directory of phpdoc. -->
<refentry id="function.xattr-supported">
<refnamediv>
<refname>xattr_supported</refname>
<refpurpose>
Check if filesystem supports extended attributes
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>xattr_supported</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>flags</parameter></methodparam>
</methodsynopsis>
<para>
This functions checks if the filesystem holding the given file supports
extended attributes. Read access to the file is required.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>filename</parameter></term>
<listitem>
<para>
The path of the tested file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>flags</parameter></term>
<listitem>
<para>
<table>
<title>Supported xattr flags</title>
<tgroup cols="2">
<tbody>
<row>
<entry><constant>XATTR_DONTFOLLOW</constant></entry>
<entry>Do not follow the symbolic link but operate on symbolic link itself.</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
This function returns &true; if filesystem supports extended attributes,
&false; if it doesn't and &null; if it can't be determined (for example
wrong path or lack of permissions to file).
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>xattr_supported</function> example</title>
<para>
The following code checks if we can use extended attributes.
</para>
<programlisting role="php">
<![CDATA[
<?php
$file = 'some_file';
if (xattr_supported($file)) {
/* ... make use of some xattr_* functions ... */
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>xattr_get</function></member>
<member><function>xattr_list</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|
