2 Bacula(R) - The Network Backup Solution
4 Copyright (C) 2000-2017 Kern Sibbald
6 The original author of Bacula is Kern Sibbald, with contributions
7 from many others, a complete list can be found in the file AUTHORS.
9 You may use this file and others of this release according to the
10 license defined in the LICENSE file, which includes the Affero General
11 Public License, v3.0 ("AGPLv3") and some additional permissions and
12 terms pursuant to its AGPLv3 Section 7.
14 This notice must be preserved when any source code is
15 conveyed and/or propagated.
17 Bacula(R) is a registered trademark of Kern Sibbald.
20 * Compressed stream header struct
29 * Compression algorithm signature. 4 letters as a 32bits integer
31 #define COMPRESS_NONE 0x4e4f4e45 /* used for incompressible block */
32 #define COMPRESS_GZIP 0x475a4950
33 #define COMPRESS_LZO1X 0x4c5a4f58
36 * Compression header version
38 #define COMP_HEAD_VERSION 0x1
40 /* Compressed data stream header */
42 uint32_t magic; /* compression algo used in this compressed data stream */
43 uint16_t level; /* compression level used */
44 uint16_t version; /* for futur evolution */
45 uint32_t size; /* compressed size of the original data */