/Utilities/Compression/GeneralBitFlags.cs

 1// Based on Mike Krueger's SharpZipLib, Copyright (C) 2001 (GNU license).
 2// Authors of the original java version: Jochen Hoenicke, John Leuner
 3// See http://www.ISeeSharpCode.com for more information.
 4
 5using System;
 6
 7namespace Delta.Utilities.Compression
 8{
 9	/// <summary>
10	/// Defines the contents of the general bit flags field for an archive entry.
11	/// </summary>
12	[Flags]
13	internal enum GeneralBitFlags
14	{
15		/// <summary>
16		/// If set indicates that the file is encrypted
17		/// </summary>
18		Encrypted = 0x0001,
19
20		/// <summary>
21		/// Two bits defining the compression method (only for Method 6 Imploding
22		/// and 8,9 Deflating)
23		/// </summary>
24		Method = 0x0006,
25
26		/// <summary>
27		/// If set a trailing data descriptor is appended to the entry data
28		/// </summary>
29		Descriptor = 0x0008,
30
31		/// <summary>
32		/// Reserved
33		/// </summary>
34		Reserved = 0x0010,
35
36		/// <summary>
37		/// If set indicates the file contains Pkzip compressed patched data.
38		/// </summary>
39		Patched = 0x0020,
40
41		/// <summary>
42		/// If set strong encryption has been used for this entry.
43		/// </summary>
44		StrongEncryption = 0x0040,
45
46		/// <summary>
47		/// Reserved by PKWare for enhanced compression.
48		/// </summary>
49		EnhancedCompress = 0x1000,
50
51		/// <summary>
52		/// If set indicates that values in the local header are masked to hide
53		/// their actual values. Used when encrypting the central directory
54		/// contents.
55		/// </summary>
56		HeaderMasked = 0x2000
57	}
58}