11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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***/
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#include <unistd.h>
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#include "journal-def.h"
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const char* object_compressed_to_string(int compression);
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int object_compressed_from_string(const char *compression);
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int compress_blob_xz(const void *src, uint64_t src_size,
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void *dst, size_t dst_alloc_size, size_t *dst_size);
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int compress_blob_lz4(const void *src, uint64_t src_size,
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void *dst, size_t dst_alloc_size, size_t *dst_size);
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static inline int compress_blob(const void *src, uint64_t src_size,
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void *dst, size_t dst_alloc_size, size_t *dst_size) {
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int r;
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#if HAVE_LZ4
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r = compress_blob_lz4(src, src_size, dst, dst_alloc_size, dst_size);
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if (r == 0)
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return OBJECT_COMPRESSED_LZ4;
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#else
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r = compress_blob_xz(src, src_size, dst, dst_alloc_size, dst_size);
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if (r == 0)
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return OBJECT_COMPRESSED_XZ;
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#endif
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return r;
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}
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int decompress_blob_xz(const void *src, uint64_t src_size,
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void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
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int decompress_blob_lz4(const void *src, uint64_t src_size,
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void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
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int decompress_blob(int compression,
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const void *src, uint64_t src_size,
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void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
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int decompress_startswith_xz(const void *src, uint64_t src_size,
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void **buffer, size_t *buffer_size,
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const void *prefix, size_t prefix_len,
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uint8_t extra);
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int decompress_startswith_lz4(const void *src, uint64_t src_size,
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void **buffer, size_t *buffer_size,
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const void *prefix, size_t prefix_len,
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uint8_t extra);
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int decompress_startswith(int compression,
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const void *src, uint64_t src_size,
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void **buffer, size_t *buffer_size,
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const void *prefix, size_t prefix_len,
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uint8_t extra);
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int compress_stream_xz(int fdf, int fdt, uint64_t max_bytes);
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int compress_stream_lz4(int fdf, int fdt, uint64_t max_bytes);
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int decompress_stream_xz(int fdf, int fdt, uint64_t max_size);
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int decompress_stream_lz4(int fdf, int fdt, uint64_t max_size);
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#if HAVE_LZ4
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# define compress_stream compress_stream_lz4
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# define COMPRESSED_EXT ".lz4"
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#else
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# define compress_stream compress_stream_xz
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# define COMPRESSED_EXT ".xz"
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#endif
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int decompress_stream(const char *filename, int fdf, int fdt, uint64_t max_bytes);
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