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2022-10-05Update copyright year in win32/zlib1.rc.Mark Adler1-1/+1
2022-10-05Add missing symbols to os400/bndsrc.Mark Adler1-0/+8
2022-10-05Minor formatting improvements.Mark Adler8-133/+138
No code changes.
2022-10-05Add new crc32 functions to z_ prefix defines.Mark Adler3-0/+9
2022-10-05Add WIN32_LEAN_AND_MEAN for windows.h include.Mark Adler3-0/+9
2022-10-05Tighten deflateBound bounds.Mark Adler1-22/+37
This improves the non-default expansion from 14% down to 4% in most cases, and 13% in the remainder.
2022-10-03Fix bug in block type selection when Z_FIXED used.Mark Adler1-6/+5
A fixed block could be chosen when a stored block was smaller. Now the smaller of the two is always chosen.
2022-10-01Avoid conversion warning in minigzip.c.Mark Adler1-1/+1
2022-08-28Fix typo in contrib readme.Mark Adler1-1/+1
2022-08-23Fix some typos.Mark Adler19-35/+35
No code changes.
2022-08-08Fix extra field processing bug that dereferences NULL state->head.Mark Adler1-2/+2
The recent commit to fix a gzip header extra field processing bug introduced the new bug fixed here.
2022-07-31Add -g when debugging with -fsanitize=address to include symbols.Mark Adler1-1/+1
2022-07-30Fix a bug when getting a gzip header extra field with inflate().Mark Adler1-2/+3
If the extra field was larger than the space the user provided with inflateGetHeader(), and if multiple calls of inflate() delivered the extra header data, then there could be a buffer overflow of the provided space. This commit assures that provided space is not exceeded.
2022-07-24Have infback() deliver all of the available output up to any error.Mark Adler1-7/+9
2022-06-27Fix inflateBack to detect invalid input with distances too far.Mark Adler1-0/+1
2022-06-04Fix odd error in Visual C compiler preventing automatic promotion.Mark Adler1-2/+2
2022-06-04Fix missing ZEXPORT for crc32_combine_op().Mark Adler1-1/+1
2022-05-26Have build test report library version if it doesn't match zlib.h.Mark Adler1-1/+2
2022-03-30Correct incorrect inputs provided to the CRC functions.Mark Adler1-4/+4
The previous releases of zlib were not sensitive to incorrect CRC inputs with bits set above the low 32. This commit restores that behavior, so that applications with such bugs will continue to operate as before.
2022-03-28Fix compile with Windows 10 SDK. (gvollant)Mark Adler1-0/+5
2022-03-28Fix configure issue that discarded provided CC definition.Mark Adler1-0/+3
2022-03-28Silence some warnings from Visual Studio C.Mark Adler2-5/+5
2022-03-27Change version number on develop branch to 1.2.12.1.Mark Adler24-48/+51
2022-03-27zlib 1.2.12v1.2.12Mark Adler43-124/+218
2022-03-27Fix crc32.c to compile local functions only if used.Mark Adler1-62/+64
2022-03-27Check for cc masquerading as gcc or clang in configure.Mark Adler1-2/+8
2022-03-27Remove destructive aspects of make distclean.Mark Adler1-3/+1
2022-03-27Separate out address sanitizing from warnings in configure.Mark Adler1-2/+7
2022-03-27Eliminate use of ULL constants.Mark Adler1-3/+3
0xffffffffffffffffULL was causing warnings for C99 usage. The suffix for the constant is not necessary anyway, so this commit removes them.
2022-03-27Add fallthrough comments for gcc.Mark Adler2-0/+24
Note intentional switch case fall throughs to avoid gcc warnings.
2022-01-01Clean up minizip to reduce warnings for testing.Mark Adler9-87/+96
Also fix Makefile test target and permit added compile options.
2022-01-01Fix unztell64() in minizip to work past 4GB. (Daniël Hörchner)Mark Adler1-0/+3
The issue is that unztell64() does not return the correct value if the position in the current file (in the ZIP archive) is beyond 4 GB. The cause is that unzReadCurrentFile() does not account for pfile_in_zip_read_info->stream.total_out at line 1854 of unzip.c wrapping around (it is a 32-bit variable). So, on line 1860 uTotalOutAfter can be *less* than uTotalOutBefore, propagating the wraparound to uOutThis, which in turn is added to pfile_in_zip_read_info->total_out_64. That has the effect of subtracting 4 GB.
2021-12-31minizip warning fix if MAXU32 already defined. (gvollant)Mark Adler1-3/+5
2021-12-31Replace black/white with allow/block. (theresa-m)Mark Adler2-15/+15
2021-07-08Fix indentation in minizip's zip.c.Mark Adler1-2/+2
2021-02-10Improve portability of contrib/minizip.Mark Adler4-10/+21
2021-01-17Correct typo in blast.c.Mark Adler1-1/+1
2020-09-17Change macro name in inflate.c to avoid collision in VxWorks.Mark Adler1-4/+4
2020-08-31Clarify gz* function interfaces, referring to parameter names.Mark Adler1-77/+76
2019-07-09Fix error in comment on the polynomial representation of a byte.Mark Adler1-1/+1
2019-05-25Fix memory leak on error in gzlog.c.Mark Adler1-2/+4
Thank you Adam Richter.
2019-04-13Avoid adding empty gzip member after gzflush with Z_FINISH.Mark Adler3-1/+13
2019-04-05Explicitly note that the 32-bit check values are 32 bits.Mark Adler1-5/+7
2019-02-17Use ARM crc32 instructions if the ARM architecture has them.Mark Adler1-3/+7
The ARM crc32 instructions will be used only if an architecture is explicitly specified at compile time that has those instructions. For example, -march=armv8.1-a or -march=armv8-a+crc, or if the machine being compiled on has the instructions, -march=native.
2019-02-17Add use of the ARMv8 crc32 instructions when requested.Mark Adler1-0/+114
Define the macro Z_ARM_CRC32 at compile time to use the ARMv8 (aarch64) crc32x and crc32b instructions. This code does not check for the presence of the crc32 instructions. Those instructions are optional for ARMv8.0, though mandatory for ARMv8.1 and later. The use of the crc32 instructions is about ten times as fast as the software braided calculation of the CRC-32. This can noticeably speed up the decompression of gzip streams.
2019-02-03Correct comment in crc32.c.Mark Adler1-1/+2
2019-01-02Don't bother computing check value after successful inflateSync().Mark Adler3-8/+14
inflateSync() is used to skip invalid deflate data, which means that the check value that was being computed is no longer useful. This commit turns off the check value computation, and furthermore allows a successful return if the compressed data terminated in a graceful manner. This commit also fixes a bug in the case that inflateSync() is used before a header is ever processed. In that case, there is no knowledge of a trailer, so the remainder is treated as raw.
2018-12-26Use atomic test and set, if available, for dynamic CRC tables.Mark Adler1-42/+112
2018-12-26Speed up software CRC-32 computation by a factor of 1.5 to 3.Mark Adler6-1096/+10209
Use the interleaved method of Kadatch and Jenkins in order to make use of pipelined instructions through multiple ALUs in a single core. This also speeds up and simplifies the combination of CRCs, and updates the functions to pre-calculate and use an operator for CRC combination.
2018-11-04Add crc32_combine_gen() and crc32_combine_op() for fast combines.Mark Adler2-0/+97
When the same len2 is used repeatedly, it is faster to use crc32_combine_gen() to generate an operator, that is then used to combine CRCs with crc32_combine_op().
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-09 05:51:25 +0000