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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-11-03 02:38:31 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-11-03 02:38:31 +0100 |
| commit | 833d4e7f84f59099ee66eabfa3457ebb7d37eaa8 (patch) | |
| tree | 3be84e1049707ce8077291065fe3689497c69b9c /archival/libarchive/unxz/xz_stream.h | |
| parent | 5e9934028aa030312a1a2e2e32d5ceade8672beb (diff) | |
| download | busybox-w32-833d4e7f84f59099ee66eabfa3457ebb7d37eaa8.tar.gz busybox-w32-833d4e7f84f59099ee66eabfa3457ebb7d37eaa8.tar.bz2 busybox-w32-833d4e7f84f59099ee66eabfa3457ebb7d37eaa8.zip | |
rename archival/libunarchive -> archival/libarchive; move bz/ into it
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'archival/libarchive/unxz/xz_stream.h')
| -rw-r--r-- | archival/libarchive/unxz/xz_stream.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/archival/libarchive/unxz/xz_stream.h b/archival/libarchive/unxz/xz_stream.h new file mode 100644 index 000000000..36f2a7cbf --- /dev/null +++ b/archival/libarchive/unxz/xz_stream.h | |||
| @@ -0,0 +1,57 @@ | |||
| 1 | /* | ||
| 2 | * Definitions for handling the .xz file format | ||
| 3 | * | ||
| 4 | * Author: Lasse Collin <lasse.collin@tukaani.org> | ||
| 5 | * | ||
| 6 | * This file has been put into the public domain. | ||
| 7 | * You can do whatever you want with this file. | ||
| 8 | */ | ||
| 9 | |||
| 10 | #ifndef XZ_STREAM_H | ||
| 11 | #define XZ_STREAM_H | ||
| 12 | |||
| 13 | #if defined(__KERNEL__) && !XZ_INTERNAL_CRC32 | ||
| 14 | # include <linux/crc32.h> | ||
| 15 | # undef crc32 | ||
| 16 | # define xz_crc32(buf, size, crc) \ | ||
| 17 | (~crc32_le(~(uint32_t)(crc), buf, size)) | ||
| 18 | #endif | ||
| 19 | |||
| 20 | /* | ||
| 21 | * See the .xz file format specification at | ||
| 22 | * http://tukaani.org/xz/xz-file-format.txt | ||
| 23 | * to understand the container format. | ||
| 24 | */ | ||
| 25 | |||
| 26 | #define STREAM_HEADER_SIZE 12 | ||
| 27 | |||
| 28 | #define HEADER_MAGIC "\3757zXZ\0" | ||
| 29 | #define HEADER_MAGIC_SIZE 6 | ||
| 30 | |||
| 31 | #define FOOTER_MAGIC "YZ" | ||
| 32 | #define FOOTER_MAGIC_SIZE 2 | ||
| 33 | |||
| 34 | /* | ||
| 35 | * Variable-length integer can hold a 63-bit unsigned integer, or a special | ||
| 36 | * value to indicate that the value is unknown. | ||
| 37 | */ | ||
| 38 | typedef uint64_t vli_type; | ||
| 39 | |||
| 40 | #define VLI_MAX ((vli_type)-1 / 2) | ||
| 41 | #define VLI_UNKNOWN ((vli_type)-1) | ||
| 42 | |||
| 43 | /* Maximum encoded size of a VLI */ | ||
| 44 | #define VLI_BYTES_MAX (sizeof(vli_type) * 8 / 7) | ||
| 45 | |||
| 46 | /* Integrity Check types */ | ||
| 47 | enum xz_check { | ||
| 48 | XZ_CHECK_NONE = 0, | ||
| 49 | XZ_CHECK_CRC32 = 1, | ||
| 50 | XZ_CHECK_CRC64 = 4, | ||
| 51 | XZ_CHECK_SHA256 = 10 | ||
| 52 | }; | ||
| 53 | |||
| 54 | /* Maximum possible Check ID */ | ||
| 55 | #define XZ_CHECK_MAX 15 | ||
| 56 | |||
| 57 | #endif | ||