NAME
Filesys::Ext2 - Interface to e2fs filesystem attributes
SYNOPSIS
use Filesys::Ext2 qw(chattr lsattr);
$mode = lsattr("/etc/passwd");
chattr("+aud", "/etc/passwd");
#or equivalently
#chattr($mode|0x0062, "/etc/passwd");
DESCRIPTION
chattr($mask, @files)
-
Change the mode of @files to match $mask. $mask may be a symbolic mode or a bitmask.
lsattr($file)
-
In list context it returns a list containing symbols representing the symbolic mode of $file. In scalar context it returns a bitmask.
lstat($file)
-
Same as
CORE::lstat
, but appends the numerical attribute bitmask. stat($file)
-
Same as
CORE::stat
, but appends the numerical attribute bitmask. calcSymMask
-
Accepts a bitmask and returns the symbolic mode. In list context it returns a symbol list like lsattr, in scalar mode it returns a string that matches the -------- region of lsattr(1) (akin to that of ls -l e.g. drwxr-x---)
SEE ALSO
chattr(1), lsattr(1)
NOTES
Of course, this would be more efficient if it were an XSUB.
The bit mappings for attributes, from ext2_fs.h
s #define EXT2_SECRM_FL 0x00000001 /* Secure deletion */
u #define EXT2_UNRM_FL 0x00000002 /* Undelete */
c #define EXT2_COMPR_FL 0x00000004 /* Compress file */
S #define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */
i #define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */
a #define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */
d #define EXT2_NODUMP_FL 0x00000040 /* do not dump file */
A #define EXT2_NOATIME_FL 0x00000080 /* do not update atime */
AUTHOR
Jerrad Pierce <belg4mit@mit.edu>, <webmaster@pthbb.org>