| | | 1 | | namespace ICSharpCode.SharpZipLib.GZip |
| | | 2 | | { |
| | | 3 | | /// <summary> |
| | | 4 | | /// This class contains constants used for gzip. |
| | | 5 | | /// </summary> |
| | | 6 | | sealed public class GZipConstants |
| | | 7 | | { |
| | | 8 | | /// <summary> |
| | | 9 | | /// Magic number found at start of GZIP header |
| | | 10 | | /// </summary> |
| | | 11 | | public const int GZIP_MAGIC = 0x1F8B; |
| | | 12 | | |
| | | 13 | | /* The flag byte is divided into individual bits as follows: |
| | | 14 | | |
| | | 15 | | bit 0 FTEXT |
| | | 16 | | bit 1 FHCRC |
| | | 17 | | bit 2 FEXTRA |
| | | 18 | | bit 3 FNAME |
| | | 19 | | bit 4 FCOMMENT |
| | | 20 | | bit 5 reserved |
| | | 21 | | bit 6 reserved |
| | | 22 | | bit 7 reserved |
| | | 23 | | */ |
| | | 24 | | |
| | | 25 | | /// <summary> |
| | | 26 | | /// Flag bit mask for text |
| | | 27 | | /// </summary> |
| | | 28 | | public const int FTEXT = 0x1; |
| | | 29 | | |
| | | 30 | | /// <summary> |
| | | 31 | | /// Flag bitmask for Crc |
| | | 32 | | /// </summary> |
| | | 33 | | public const int FHCRC = 0x2; |
| | | 34 | | |
| | | 35 | | /// <summary> |
| | | 36 | | /// Flag bit mask for extra |
| | | 37 | | /// </summary> |
| | | 38 | | public const int FEXTRA = 0x4; |
| | | 39 | | |
| | | 40 | | /// <summary> |
| | | 41 | | /// flag bitmask for name |
| | | 42 | | /// </summary> |
| | | 43 | | public const int FNAME = 0x8; |
| | | 44 | | |
| | | 45 | | /// <summary> |
| | | 46 | | /// flag bit mask indicating comment is present |
| | | 47 | | /// </summary> |
| | | 48 | | public const int FCOMMENT = 0x10; |
| | | 49 | | |
| | | 50 | | /// <summary> |
| | | 51 | | /// Initialise default instance. |
| | | 52 | | /// </summary> |
| | | 53 | | /// <remarks>Constructor is private to prevent instances being created.</remarks> |
| | 0 | 54 | | GZipConstants() |
| | | 55 | | { |
| | 0 | 56 | | } |
| | | 57 | | } |
| | | 58 | | } |