cast string literals with z_const char *

from upstream 2ba25b2ddab9aa939c321d087fcfca573a9cca55

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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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.

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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Fix warnings when building zlib with ZLIB_CONST defined

Probably not very useful (given the lack of feedback) but feels more
correct. Kernel part tested with option ZLIB_CONST.

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

Fix for DoS caused by incorrect error handling. From Dmitry V. Levin.
ok miller@ henning@

sync with sys/lib/libz; adds #ifdef SMALL and one more #ifndef SLOW
henning@ OK

update to zlib 1.2.1

ok millert@ deraadt@