NTLM_WB: delete remains in tests, docs updates

Also update more docs to reflect the removal of NTLM_WB.

Follow-up to 50def7c881ba560ab6e0235990e8f07fa69f4bc8 #13249
Closes #14832

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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tests/server: make use of strcasecompare from lib/

... instead of having a second private implementation.

Idea triggered by #9830

Closes #9831

curl_ctype: convert to macros-only

This no longer provide functions, only macros. Runs faster and produces
smaller output.

The biggest precaution this change brings:

DO

curl_ctype: convert to macros-only

This no longer provide functions, only macros. Runs faster and produces
smaller output.

The biggest precaution this change brings:

DO NOT use post/pre-increments when passing arguments to the macros.

Closes #9429

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copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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misc: update copyright year ranges

timediff.[ch]: add curlx helper functions for timeval conversions

Also move timediff_t definitions from timeval.h to timediff.h and
then make timeval.h include the new standalone-capable

timediff.[ch]: add curlx helper functions for timeval conversions

Also move timediff_t definitions from timeval.h to timediff.h and
then make timeval.h include the new standalone-capable timediff.h.

Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg

Supersedes #5888
Closes #8595

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curl.se: new home

Closes #6172

curl_multibyte: add to curlx

This will also be needed in the tool and tests.

Ref: https://github.com/curl/curl/pull/3758#issuecomment-482197512
Closes https://github.com/curl/cu

curl_multibyte: add to curlx

This will also be needed in the tool and tests.

Ref: https://github.com/curl/curl/pull/3758#issuecomment-482197512
Closes https://github.com/curl/curl/pull/3784

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dynbuf: introduce internal generic dynamic buffer functions

A common set of functions instead of many separate implementations for
creating buffers that can grow when appending data to t

dynbuf: introduce internal generic dynamic buffer functions

A common set of functions instead of many separate implementations for
creating buffers that can grow when appending data to them. Existing
functionality has been ported over.

In my early basic testing, the total number of allocations seem at
roughly the same amount as before, possibly a few less.

See docs/DYNBUF.md for a description of the API.

Closes #5300

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tests: add the mqtt test server mqttd

copyright: fix out-of-date copyright ranges and missing headers

Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyrigh

copyright: fix out-of-date copyright ranges and missing headers

Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.

Removed three (mostly usesless) README files from docs/

Closes #5141

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tests: have runtests figure out disabled features

... so that runtests can skip individual test cases that test features
that are explicitly disabled in this build. This new logic is int

tests: have runtests figure out disabled features

... so that runtests can skip individual test cases that test features
that are explicitly disabled in this build. This new logic is intended
for disabled features that aren't otherwise easily visible through the
curl_version_info() or other API calls.

tests/server/disabled is a newly built executable that will output a
list of disabled features. Outputs nothing for a default build.

Closes #3950

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socksd: new SOCKS 4+5 server for tests

Closes #3752

curl_ctype: private is*() type macros and functions

... since the libc provided one are locale dependent in a way we don't
want. Also, the "native" isalnum() (for example) works differen

curl_ctype: private is*() type macros and functions

... since the libc provided one are locale dependent in a way we don't
want. Also, the "native" isalnum() (for example) works differently on
different platforms which caused test 1307 failures on macos only.

Closes #2269

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timediff: return timediff_t from the time diff functions

... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

timediff: return timediff_t from the time diff functions

... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

- Added overflow protection for both of them in either direction for
both 32 bit and 64 bit time_ts

- Reprefixed the curlx_time functions to use Curl_*

Reported-by: Peter Piekarski
Fixes #2004
Closes #2005

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tests/util: get a private strncasecompare clone

... since the curlx_* code no longer provides one and we don't link
libcurl to these test servers.

strcasecompare: is the new name for strequal()

... to make it less likely that we forget that the function actually
does case insentive compares. Also replaced several invokes of the

strcasecompare: is the new name for strequal()

... to make it less likely that we forget that the function actually
does case insentive compares. Also replaced several invokes of the
function with a plain strcmp when case sensitivity is not an issue (like
comparing with "-").

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Makefile.inc: fix $(top_srcdir) not allowed in _SOURCES variables

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

lib/curl_imap.h
lib/curl_smtp.h

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build: make use of 93 lib/*.c renamed files

93 *.c source files renamed to use our standard naming scheme.

This change affects 77 files in libcurl's source tree.

build: make use of 76 lib/*.h renamed files

76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.

build: avoid linkage of directly unused libraries

test servers: build adjustment

Undefine CURL_HIDDEN_SYMBOLS libcurl private preprocessor macro that might
leak from lib/setup.h into source files where this should not be defined.

sws.c: some IPv6 proxy mode peparatory adjustments