xattr_get
(no version information, might be only in CVS)
xattr_get --
Get an extended attribute
Popis
string
xattr_get ( string filename, string name [, int flags] )
This function gets the value of an extended attribute of a file.
Roz��ren� atrib�ty maj� dve odli�n� namespacey: user
a root namespace. User namespace je dostupn� pre v�etk�ch u��vate�ov, zatia��o root namespace
je dostupn� iba pre u��vate�a s rootovsk�mi privil�giami. xattr ako default pracuje na user
namespace, ale m�ete to zmeni� pomocou argumentu flags.
Parametre
- filename
The file from which we get the attribute.
- name
The name of the attribute.
- flags
Tabuľka 1. Supported xattr flags
XATTR_DONTFOLLOW | Do not follow the symbolic link but operate on symbolic link itself. |
XATTR_ROOT | Set attribute in root (trusted) namespace. Requires root privileges. |
Vrátené hodnoty
Returns a string containing the value or FALSE if the attribute doesn't
exist.
Príklady
Príklad 1. Checks if system administrator has signed the file
<?php $file = '/usr/local/sbin/some_binary'; $signature = xattr_get($file, 'Root signature', XATTR_ROOT);
/* ... check if $signature is valid ... */
?>
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