sync with upstream

This adds a new public API, deflateUsed(), so is technically a minor bump.
Nothing will be using this anytime soon, so no shared library bump.

discussed with deraadt during c2k24

Z_HUFFMAN -> Z_HUFFMAN_ONLY + linewrapping churn in a comment

from upstream 0f3b7b9595cc7d85c3b13282e71fcecef7f18f9c

Pull in z_off64_t handling from upstream

Since we don't define Z_LARGE64, we continue to define z_off64_t to z_off_t
and all the other changes are no-ops for OpenBSD.

ok kettenis millert

Sync doc-comment for deflateInit2 with upstream

Update to zlib 1.3.1

Since we already pulled in all fixes, this only bumps version/magic numbers
and copyright years. The fixes relevant to OpenBSD are:

- Fix bug in inflateSync() for data held in

Update to zlib 1.3.1

Since we already pulled in all fixes, this only bumps version/magic numbers
and copyright years. The fixes relevant to OpenBSD are:

- Fix bug in inflateSync() for data held in bit buffer
- Add LIT_MEM define to use more memory for a small deflate speedup
- Add bounds checking to ERR_MSG() macro, used by zError()
- Various portability and appearance improvements

show more ...

libz: sync with upstream's develop branch as of Jan 18

libz sync with develop branch, discussed with deraadt

Apart from cosmetics, this includes the following commits:

Add LIT_MEM define to use more memory for a small deflate speedup.

A bug fix in zli

libz sync with develop branch, discussed with deraadt

Apart from cosmetics, this includes the following commits:

Add LIT_MEM define to use more memory for a small deflate speedup.

A bug fix in zlib 1.2.12 resulted in a slight slowdown (1-2%) of
deflate. This commit provides the option to #define LIT_MEM, which
uses more memory to reverse most of that slowdown. The memory for
the pending buffer and symbol buffers is increased by 25%, which
increases the total memory usage with the default parameters by
about 6%.

https://github.com/madler/zlib/commit/ac8f12c97d1afd9bafa9c710f827d40a407d3266

Fix bug in inflateSync() for data held in bit buffer.

https://github.com/madler/zlib/commit/5af7cef45eeef86ddf6ab00b4e363c1eecaf47b6

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Bump zlib version to 1.3

We have been pulling in all actual changes over the past months, so this
is only a version number bump. The relevant entries of the ChangeLog are:

* Building using K&R (p

Bump zlib version to 1.3

We have been pulling in all actual changes over the past months, so this
is only a version number bump. The relevant entries of the ChangeLog are:

* Building using K&R (pre-ANSI) function definitions is no longer supported.
* Fixed a bug in deflateBound() for level 0 and memLevel 9.
* Fixed a bug when gzungetc() is used immediately after gzopen().
* Fixed a bug when using gzflush() with a very small buffer.
* Fixed a crash when gzsetparams() is attempted for a transparent write.

ok deraadt miod millert

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Sync doc comment with upstream

Merge some doc comment updates from upstream

Sync with upstream

Update some links in the README, remove a duplicate word in a zlib.h doc
comment. The only code change is guarded by #if defined(_WIN32).

Update libz to the HEAD of the develop branch

This mostly moves from K&R prototypes to ANSI prototypes and includes a
handful of bug fixes that are nice to have. The corresponding sys commit
will al

Update libz to the HEAD of the develop branch

This mostly moves from K&R prototypes to ANSI prototypes and includes a
handful of bug fixes that are nice to have. The corresponding sys commit
will allow us to undo some hacks that jca applied to make the kernel build
with clang 15.

discussed with deraadt

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Drop RCS ids in upstream zlib source

We're not maintaining a this as a fork, it's upstream source with a handful
of patches. Thus, the RCS ids aren't particularly useful or important. They
are a bit

Drop RCS ids in upstream zlib source

We're not maintaining a this as a fork, it's upstream source with a handful
of patches. Thus, the RCS ids aren't particularly useful or important. They
are a bit of a maintenance burden and generate noise in diffs.

ok kn, no objection millert, "kill" guess who

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Update base libz to 1.2.13

This update contains a few bugfixes (some of which we have already
backported to 1.2.12) and a ton of cosmetic changes. The relevant
bits of the ChangeLog are:

- Repair p

Update base libz to 1.2.13

This update contains a few bugfixes (some of which we have already
backported to 1.2.12) and a ton of cosmetic changes. The relevant
bits of the ChangeLog are:

- Repair prototypes and exporting of new CRC functions
- Have infback() deliver all of the available output up to any error
- Fix a bug when getting a gzip header extra field with inflate()
- Fix bug in block type selection when Z_FIXED used
- Tighten deflateBound bounds
- Remove deleted assembler code references
- Various portability and appearance improvements

Tested on amd64 and arm64 by me and on sparc64 by kn.

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Revert zlib.h r1.7

The change from uLong to z_off_t was made due to a bug in gzip(1) which
was fixed by gkoehler in gzopen.c r1.35. The trouble with the z_off_t
change is that it is an ABI break and

Revert zlib.h r1.7

The change from uLong to z_off_t was made due to a bug in gzip(1) which
was fixed by gkoehler in gzopen.c r1.35. The trouble with the z_off_t
change is that it is an ABI break and that it does not play well with
various ffi interfaces. For example, Perl and Rust break on ILP32 arches
with the system zlib.

Run through an i386 bulk by sthen and an i386 regress by bluhm, thanks.

ok bluhm

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Update to zlib 1.2.12

Build tests by myself for amd64 and arm64, sthen and inoguchi for i386
and gkoehler for macppc and powerpc64, thanks!

Detailed changelog is part of the committed diff.

Add missing RCS tags

Update libz to zlib 1.2.11 and reapply local patches as far as this
made sense.

Tested in snaps for a few days. deraadt helped with fitting things on
floppies and jmatthew found a bug I introduced.

Update libz to zlib 1.2.11 and reapply local patches as far as this
made sense.

Tested in snaps for a few days. deraadt helped with fitting things on
floppies and jmatthew found a bug I introduced.

ok deraadt

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Add ZLIB_CONST

Introduced in zlib-1.2.5.2, used by a few ports. ok deraadt@

fix typos; while here, improve spacing in comments.

changes to libevent and zlib headers sent to the upstream maintainers.

ok jmc@ (for typos), millert@

Update to zlib 1.2.3; OK deraadt@

update to zlib-1.21 (we already have the CAN-2004-0797 security fixes)
"in it goes" deraadt@, in the near-total absence of feedback from others

total_in and total_out need to be off_t, not unsigned long.
some bugs return: i fixed the same some months ago when we had this other gzip
there.
this bug resulted in wrong size stats for > 4GB files

total_in and total_out need to be off_t, not unsigned long.
some bugs return: i fixed the same some months ago when we had this other gzip
there.
this bug resulted in wrong size stats for > 4GB files, and in the case
that the input file was > 4GB and could be compressed to < 4GB gzip
not zipping it as it would grow in its eyes.

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update to zlib 1.2.1

ok millert@ deraadt@

Update to zlib-1.1.4