AsiExtraField Apache Ant 1.7.1)

Description

public class AsiExtraField

Adds Unix file permission and UID/GID fields as well as symbolic link handling.

This class uses the ASi extra field in the format:

         Value         Size            Description
         -----         ----            -----------
 (Unix3) 0x756e        Short           tag for this extra block type
         TSize         Short           total data size for this block
         CRC           Long            CRC-32 of the remaining data
         Mode          Short           file permissions
         SizDev        Long            symlink'd size OR major/minor dev num
         UID           Short           user ID
         GID           Short           group ID
         (var.)        variable        symbolic link filename

taken from appnote.iz (Info-ZIP note, 981119) found at ftp://ftp.uu.net/pub/archiving/zip/doc/

Short is two bytes and Long is four bytes in big endian byte and word order, device numbers are currently not supported.

See also:

Methods

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public byte getCentralDirectoryData () [Specified in ZipExtraField]

Delegate to local file data.

public ZipShort getCentralDirectoryLength () [Specified in ZipExtraField]

Delegate to local file data.

public int getGroupId ()

Get the group id.

public ZipShort getHeaderId () [Specified in ZipExtraField]

The Header-ID.

public java.lang.String getLinkedFile ()

Name of linked file

public byte getLocalFileDataData () [Specified in ZipExtraField]

The actual data to put into local file data - without Header-ID or length specifier.

public ZipShort getLocalFileDataLength () [Specified in ZipExtraField]

Length of the extra field in the local file data - without Header-ID or length specifier.

Length of the extra field in the local file data - without
Header-ID or length specifier.
Returns: a ZipShort for the length of the data of this extra field
Since: 1.1

public int getMode ()

File mode of this file.

protected int getMode (int mode)

Get the file mode for given permissions with the correct file type.

public int getUserId ()

Get the user id.

public boolean isDirectory ()

Is this entry a directory?

public boolean isLink ()

Is this entry a symbolic link?

public void parseFromLocalFileData (byte[] data, int offset, int length) throws java.util.zip.ZipException [Specified in ZipExtraField]

Populate data from this array as if it was in local file data.

public void setDirectory (boolean dirFlag)

Indicate whether this entry is a directory.

public void setGroupId (int gid)

Set the group id.

public void setLinkedFile (java.lang.String name)

Indicate that this entry is a symbolic link to the given filename.

public void setMode (int mode)

File mode of this file.

public void setUserId (int uid)

Set the user id.

Fields

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publicfinalstatic int DEFAULT_DIR_PERM = "493" [Inherited From UnixStat]

Default permissions for directories.

publicfinalstatic int DEFAULT_FILE_PERM = "420" [Inherited From UnixStat]

Default permissions for plain files.

publicfinalstatic int DEFAULT_LINK_PERM = "511" [Inherited From UnixStat]

Default permissions for symbolic links.

publicfinalstatic int DIR_FLAG = "16384" [Inherited From UnixStat]

Indicates directories.

publicfinalstatic int FILE_FLAG = "32768" [Inherited From UnixStat]

Indicates plain files.

publicfinalstatic int LINK_FLAG = "40960" [Inherited From UnixStat]

Indicates symbolic links.

publicfinalstatic int PERM_MASK = "4095" [Inherited From UnixStat]

Bits used for permissions (and sticky bit)