8741da2036
Fix a bug when getting a gzip header extra field with inflateGetHeader(). This remedies CVE-2022-37434. Fix a bug in block type selection when Z_FIXED used. Now the smallest block type is selected, for better compression. Fix a configure issue that discarded the provided CC definition. Correct incorrect inputs provided to the CRC functions. This mitigates a bug in Java. Repair prototypes and exporting of the new CRC functions. Fix inflateBack to detect invalid input with distances too far. Fix a deflate bug when using the Z_FIXED strategy that can result in out-of-bound accesses. Fix a deflate bug when the window is full in deflate_stored(). Speed up CRC-32 computations by a factor of 1.5 to 3. Use the hardware CRC-32 instruction on ARMv8 processors. Speed up crc32_combine() with powers of x tables. Add crc32_combine_gen() and crc32_combine_op() for fast combines.
23 lines
1002 B
Plaintext
23 lines
1002 B
Plaintext
Copyright notice:
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(C) 1995-2022 Jean-loup Gailly and Mark Adler
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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Jean-loup Gailly Mark Adler
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jloup@gzip.org madler@alumni.caltech.edu
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