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34 lines
1.3 KiB
34 lines
1.3 KiB
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2016 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _COMMONLIB_COMPRESSION_H_
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#define _COMMONLIB_COMPRESSION_H_
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#include <stddef.h>
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/* Decompresses an LZ4F image (multiple LZ4 blocks with frame header) from src
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* to dst, ensuring that it doesn't read more than srcn bytes and doesn't write
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* more than dstn. Buffer sizes must stay below 2GB. Can decompress files loaded
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* to the end of a buffer in-place, as long as buffer is larger than the final
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* output size. (Usually just a few bytes, but may be up to (8 + dstn/255) in
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* worst case. Will reliably return an error if buffer was too small.)
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* Returns amount of decompressed bytes, or 0 on error.
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*/
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size_t ulz4fn(const void *src, size_t srcn, void *dst, size_t dstn);
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/* Same as ulz4fn() but does not perform any bounds checks. */
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size_t ulz4f(const void *src, void *dst);
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#endif /* _COMMONLIB_COMPRESSION_H_ */
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