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<?php
/**
* Object representing a file's permission bits
*/
class Loco_fs_FileMode {
/**
* inode protection mode
* @var int
*/
private $i;
/**
* Instantiate from integer file mode
* @param int
*/
public function __construct( $mode ){
$this->i = (int) $mode;
}
/**
* @return string
*/
public function __toString(){
return sprintf('%03o', $this->i & 07777 );
}
/**
* rwx style friendly formatting
* @return string
*/
public function format(){
$mode = $this->i;
$setuid = $mode & 04000;
$setgid = $mode & 02000;
$sticky = $mode & 01000;
return
$this->type().
( $mode & 0400 ? 'r' : '-' ).
( $mode & 0200 ? 'w' : '-' ).
( $mode & 0100 ? ($setuid?'s':'x') : ($setuid?'S':'-') ).
( $mode & 0040 ? 'r' : '-' ).
( $mode & 0020 ? 'w' : '-' ).
( $mode & 0010 ? ($setgid?'s':'x') : ($setgid?'S':'-') ).
( $mode & 0004 ? 'r' : '-' ).
( $mode & 0002 ? 'w' : '-' ).
( $mode & 0001 ? ($sticky?'t':'x') : ($sticky?'T':'-') );
}
/**
* File type bit field:
* http://man7.org/linux/man-pages/man2/stat.2.html
*/
public function type(){
$mode = $this->i & 0170000;
switch( $mode ){
case 0010000:
return '-';
case 0040000:
return 'd';
case 0120000:
return 'l';
case 0140000:
return 's';
case 0060000:
return 'c';
default:
return '-';
}
}
}
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