Add support for static linking of libzstd

branches: 1.7.12;
Explicitly link against libpthread and liblzma to make static linking
happy. Newer libarchive supports LZMA compression in zip files.

branches: 1.6.10;
Remove MKCRYPTO option.

Originally, MKCRYPTO was introduced because the United States
classified cryptography as a munition and restricted its export. The
export controls were substantially relaxed fifteen years ago, and are
essentially irrelevant for software with published source code.

In the intervening time, nobody bothered to remove the option after
its motivation -- the US export restriction -- was eliminated. I'm
not aware of any other operating system that has a similar option; I
expect it is mainly out of apathy for churn that we still have it.
Today, cryptography is an essential part of modern computing -- you
can't use the internet responsibly without cryptography.

The position of the TNF board of directors is that TNF makes no
representation that MKCRYPTO=no satisfies any country's cryptography
regulations.

My personal position is that the availability of cryptography is a
basic human right; that any local laws restricting it to a privileged
few are fundamentally immoral; and that it is wrong for developers to
spend effort crippling cryptography to work around such laws.

As proposed on tech-crypto, tech-security, and tech-userlevel to no
objections:

https://mail-index.netbsd.org/tech-crypto/2017/05/06/msg000719.html
https://mail-index.netbsd.org/tech-security/2017/05/06/msg000928.html
https://mail-index.netbsd.org/tech-userlevel/2017/05/06/msg010547.html

P.S. Reviewing all the uses of MKCRYPTO in src revealed a lot of
*bad* crypto that was conditional on it, e.g. DES in telnet... That
should probably be removed too, but on the grounds that it is bad,
not on the grounds that it is (nominally) crypto.

Add crypto stuff on top of what we already have, rather than replacing!

fix conditional

new libarchive need crypto.

branches: 1.2.24;
revert 4 digit year printing and add -y option to print 4 digit years.

Add work-in-progress unzip(1) frontend for libarchive.
Derived from FreeBSD's unzip.

New sentence, new line.

Add support for password protected zip files (Alex Kozlov)
Also some KNF

mention zipx, from Alex Kozlov

From FreeBSD:
- Whitespace cleanup
- Pass a filename rather than fd to libarchive (should work with 2.8+)
- Accept zipfiles from stdin
- Extract common code from extract()/extract_stdout() to extract2fd() (pending)

Merge riastradh-drm2 to HEAD.

Use Mt for email addresses.

branches: 1.8.2; 1.8.8; 1.8.12;
revert 4 digit year printing and add -y option to print 4 digit years.

Add -C support. Document it.
Ok joerg

Improve -t output a bit (still different from Infozip unzip, but better).

Fix synopsis

Fix typos.

Add support for -c, make the output of -l/-v more similar to infozip.

Add -p and -q support.

Remove superfluous Pp. Grammar improvement, typo fix, sort sections, fix Xr.

Add work-in-progress unzip(1) frontend for libarchive.
Derived from FreeBSD's unzip.

usr.bin: remove unnecessary lint comment CONSTCOND

Since 2021-01-31, lint no longer warns about 'do ... while (0)'.

No functional change.

Remove the "original line"
Fix lint comment

Add support for password protected zip files (Alex Kozlov)
Also some KNF

Build with linux/glibc (Alex Kozlov)

Ignore malformed directory entries as created by Dropbox ("/").

branches: 1.23.10; 1.23.12;
Use libarchive 3.x interface and not obsolete 2.x versions.

branches: 1.22.2; 1.22.4;
From FreeBSD:
- Whitespace cleanup
- Pass a filename rather than fd to libarchive (should work with 2.8+)
- Accept zipfiles from stdin
- Extract common code from extract()/extract_stdout() to extract2fd() (pending)

simplify.

PR/50496: Alex Kozlov: teach unzip to extract symlinks

Our libarchive does not handle symliks yet, but later versions do.
Set mode and times for symlinks. Finally handle hardlinks for
completion although they are not handled yet by librarchive.

error_count is unsigned, so use %ju

Use __dead and __printflike. Fix one format string and one error()
argument as hinted by the new format string checking.

revert 4 digit year printing and add -y option to print 4 digit years.

kill 2 digit year format.

Fix a logic error: when renaming a file, strip trailing \n from file name.

Kill a left-over break from the for-loop that vanished in 1.13.
Issue noticed by tnn.

Switch to the less restrictive binary detection algorithm from zip 3.0e.

Only print the "Archive: xxx" header if not in extract-to-stdout mode.

When restoring files, use the mode, not the filetype, for the mode.
From FreeBSD (r201630)

Match directory extraction output with Infozip.

Don't print "Archive:" line if quiet flag is set.

Implement rename query.

Add -C support. Document it.
Ok joerg

Improve -t output a bit (still different from Infozip unzip, but better).

Make output for -v/-l match Infozip unzip more closely.
Mention archive name, like Infozip unzip.
Add missing options to usage.
Ok joerg@

Fix output spacing for summary in -v.

Fix typos.

Add support for -c, make the output of -l/-v more similar to infozip.

Add -p and -q support.

Add work-in-progress unzip(1) frontend for libarchive.
Derived from FreeBSD's unzip.