1 /* 2 Bacula(R) - The Network Backup Solution 3 4 Copyright (C) 2000-2020 Kern Sibbald 5 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. 8 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. 13 14 This notice must be preserved when any source code is 15 conveyed and/or propagated. 16 17 Bacula(R) is a registered trademark of Kern Sibbald. 18 */ 19 /** 20 * Compressed stream header struct 21 * 22 * Laurent Papier 23 */ 24 25 #ifndef __CH_H 26 #define __CH_H 1 27 28 /* 29 * Compression algorithm signature. 4 letters as a 32bits integer 30 */ 31 #define COMPRESS_NONE 0x4e4f4e45 /* used for incompressible block */ 32 #define COMPRESS_GZIP 0x475a4950 33 #define COMPRESS_LZO1X 0x4c5a4f58 34 35 /* 36 * Compression header version 37 */ 38 #define COMP_HEAD_VERSION 0x1 39 40 /* Compressed data stream header */ 41 typedef struct { 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 */ 46 } comp_stream_header; 47 48 #endif /* __CH_H */ 49