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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/import/import-compress.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/import/import-compress.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/import/import-compress.h b/src/import/import-compress.h new file mode 100644 index 0000000..0a42103 --- /dev/null +++ b/src/import/import-compress.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#if HAVE_BZIP2 +#include <bzlib.h> +#endif +#include <lzma.h> +#include <sys/types.h> +#include <zlib.h> + +#include "macro.h" + +typedef enum ImportCompressType { + IMPORT_COMPRESS_UNKNOWN, + IMPORT_COMPRESS_UNCOMPRESSED, + IMPORT_COMPRESS_XZ, + IMPORT_COMPRESS_GZIP, + IMPORT_COMPRESS_BZIP2, + _IMPORT_COMPRESS_TYPE_MAX, + _IMPORT_COMPRESS_TYPE_INVALID = -EINVAL, +} ImportCompressType; + +typedef struct ImportCompress { + ImportCompressType type; + bool encoding; + union { + lzma_stream xz; + z_stream gzip; +#if HAVE_BZIP2 + bz_stream bzip2; +#endif + }; +} ImportCompress; + +typedef int (*ImportCompressCallback)(const void *data, size_t size, void *userdata); + +void import_compress_free(ImportCompress *c); + +int import_uncompress_detect(ImportCompress *c, const void *data, size_t size); +void import_uncompress_force_off(ImportCompress *c); +int import_uncompress(ImportCompress *c, const void *data, size_t size, ImportCompressCallback callback, void *userdata); + +int import_compress_init(ImportCompress *c, ImportCompressType t); +int import_compress(ImportCompress *c, const void *data, size_t size, void **buffer, size_t *buffer_size, size_t *buffer_allocated); +int import_compress_finish(ImportCompress *c, void **buffer, size_t *buffer_size, size_t *buffer_allocated); + +const char* import_compress_type_to_string(ImportCompressType t) _const_; +ImportCompressType import_compress_type_from_string(const char *s) _pure_; |