server/getpart: delete unused code

Follow-up to 2610142139d14265ed9acf9ed83cdf73d6bb4d05 #8378
Closes #14829

src: fix potential macro confusion in cmake unity builds

Sources used `lib/curlx.h` with both `ENABLE_CURLX_PRINTF` set and unset
before including it.

In a cmake "unity" batch w

src: fix potential macro confusion in cmake unity builds

Sources used `lib/curlx.h` with both `ENABLE_CURLX_PRINTF` set and unset
before including it.

In a cmake "unity" batch where the first included source had it unset,
the next sources did not get the macros requested with
`ENABLE_CURLX_PRINTF` because `lib/curl.x` had already been included
without them.

Fix it by by making the macros enabled permanently and globally for
internal sources, and dropping `ENABLE_CURLX_PRINTF`.

This came up while testing unity builds with smaller batches. The full,
default unity build where all `src` is bundled up in a single unit, was
not affected.

Fixes:
```
$ cmake -B build -DCMAKE_UNITY_BUILD=ON -DCMAKE_UNITY_BUILD_BATCH_SIZE=15
$ make -C build
...
curl/src/tool_getparam.c: In function ‘getparameter’:
curl/src/tool_getparam.c:2409:11: error: implicit declaration of function ‘msnprintf’; did you mean ‘vsnprintf’? [-Wimplicit-function-declaration]
2409 | msnprintf(buffer, sizeof(buffer), "%" CURL_FORMAT_CURL_OFF_T "-",
| ^~~~~~~~~
| vsnprintf
curl/src/tool_getparam.c:2409:11: warning: nested extern declaration of ‘msnprintf’ [-Wnested-externs]
[...]
```

Reported-by: Daniel Stenberg
Bug: https://github.com/curl/curl/pull/14626#issuecomment-2301663491

Closes #14632

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build: silence C4232 MSVC warnings in vcpkg ngtcp2 builds

Silence bogus MSVC warning C4232. Use the method already used
for similar cases earlier.

Also fixup existing suppressio

build: silence C4232 MSVC warnings in vcpkg ngtcp2 builds

Silence bogus MSVC warning C4232. Use the method already used
for similar cases earlier.

Also fixup existing suppressions to use pragma push/pop.

```
lib\vquic\curl_ngtcp2.c(709,40): error C2220: the following warning is treated as an error
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'client_initial': address of dllimport 'ngtcp2_crypto_client_initial_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'recv_crypto_data': address of dllimport 'ngtcp2_crypto_recv_crypto_data_cb' is not static, identity not guaran
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'encrypt': address of dllimport 'ngtcp2_crypto_encrypt_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'decrypt': address of dllimport 'ngtcp2_crypto_decrypt_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'hp_mask': address of dllimport 'ngtcp2_crypto_hp_mask_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'recv_retry': address of dllimport 'ngtcp2_crypto_recv_retry_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'update_key': address of dllimport 'ngtcp2_crypto_update_key_cb' is not static, identity not guaranteed
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'delete_crypto_aead_ctx': address of dllimport 'ngtcp2_crypto_delete_crypto_aead_ctx_cb' is not static, identit
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'delete_crypto_cipher_ctx': address of dllimport 'ngtcp2_crypto_delete_crypto_cipher_ctx_cb' is not static, ide
lib\vquic\curl_ngtcp2.c(709,40): warning C4232: nonstandard extension used: 'get_path_challenge_data': address of dllimport 'ngtcp2_crypto_get_path_challenge_data_cb' is not static, ident
```
Ref: https://github.com/curl/curl/actions/runs/10343459009/job/28627621355#step:10:30

Cherry-picked from #14495
Co-authored-by: Tal Regev
Ref: #14383
Closes #14510

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windows: use built-in `_WIN32` macro to detect Windows

Windows compilers define `_WIN32` automatically. Windows SDK headers
or build env defines `WIN32`, or we have to take care of it. T

windows: use built-in `_WIN32` macro to detect Windows

Windows compilers define `_WIN32` automatically. Windows SDK headers
or build env defines `WIN32`, or we have to take care of it. The
agreement seems to be that `_WIN32` is the preferred practice here.
Make the source code rely on that to detect we're building for Windows.

Public `curl.h` was using `WIN32`, `__WIN32__` and `CURL_WIN32` for
Windows detection, next to the official `_WIN32`. After this patch it
only uses `_WIN32` for this. Also, make it stop defining `CURL_WIN32`.

There is a slight chance these break compatibility with Windows
compilers that fail to define `_WIN32`. I'm not aware of any obsolete
or modern compiler affected, but in case there is one, one possible
solution is to define this macro manually.

grepping for `WIN32` remains useful to discover Windows-specific code.

Also:

- extend `checksrc` to ensure we're not using `WIN32` anymore.

- apply minor formatting here and there.

- delete unnecessary checks for `!MSDOS` when `_WIN32` is present.

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

Closes #12376

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misc: fix -Walloc-size warnings

GCC 14 introduces a new -Walloc-size included in -Wextra which gives:

```
src/tool_operate.c: In function ‘add_per_transfer’:
src/tool_operat

misc: fix -Walloc-size warnings

GCC 14 introduces a new -Walloc-size included in -Wextra which gives:

```
src/tool_operate.c: In function ‘add_per_transfer’:
src/tool_operate.c:213:5: warning: allocation of insufficient size ‘1’ for type ‘struct per_transfer’ with size ‘480’ [-Walloc-size]
213 | p = calloc(sizeof(struct per_transfer), 1);
| ^
src/var.c: In function ‘addvariable’:
src/var.c:361:5: warning: allocation of insufficient size ‘1’ for type ‘struct var’ with size ‘32’ [-Walloc-size]
361 | p = calloc(sizeof(struct var), 1);
| ^
```

The calloc prototype is:
```
void *calloc(size_t nmemb, size_t size);
```

So, just swap the number of members and size arguments to match the
prototype, as we're initialising 1 struct of size `sizeof(struct
...)`. GCC then sees we're not doing anything wrong.

Closes #12292

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server/getpart: clear the buffer before load

Fixes msan warnings:

==54195==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x55ece35e57cb in line_length /home/runner

server/getpart: clear the buffer before load

Fixes msan warnings:

==54195==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x55ece35e57cb in line_length /home/runner/work/curl/curl/tests/server/getpart.c:111:25
#1 0x55ece35e3b83 in readline /home/runner/work/curl/curl/tests/server/getpart.c:164:24
#2 0x55ece35e0269 in getpart /home/runner/work/curl/curl/tests/server/getpart.c:347:18
#3 0x55ece36180b6 in parse_servercmd /home/runner/work/curl/curl/tests/server/sws.c:283:13

Closes #10822

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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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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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runtests.pl: support the nonewline attribute for the data part

Added to FILEFORMAT

Closes #8239

tests/server/getpart.c: properly deal with binary data containing NUL bytes

copyright: update copyright year ranges to 2021

Reviewed-by: Emil Engler
Closes #6802

tests/server: Bump MAX_TAG_LEN to 200

This is useful for tests containing HTML inside of <data> sections.
For <img> tags it's not uncommon to be longer than the previous
limit of 79

tests/server: Bump MAX_TAG_LEN to 200

This is useful for tests containing HTML inside of <data> sections.
For <img> tags it's not uncommon to be longer than the previous
limit of 79 bytes.

An example of a previously problem-causing tag is:
<img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-http://www.privoxy.org/images/privoxy.png-by-size" width="88" height="31">
which is needed for a Privoxy test for the banners-by-size filter.

Previously it caused server failures like:
12:29:05.786961 ====> Client connect
12:29:05.787116 accept_connection 3 returned 4
12:29:05.787194 accept_connection 3 returned 0
12:29:05.787285 Read 119 bytes
12:29:05.787345 Process 119 bytes request
12:29:05.787407 Got request: GET /banners-by-size/9 HTTP/1.1
12:29:05.787464 Requested test number 9 part 0
12:29:05.787686 getpart() failed with error: -2
12:29:05.787744 - request found to be complete (9)
12:29:05.787912 getpart() failed with error: -2
12:29:05.788048 Wrote request (119 bytes) input to log/server.input
12:29:05.788157 Send response test9 section <data>
12:29:05.788443 getpart() failed with error: -2
12:29:05.788498 instructed to close connection after server-reply
12:29:05.788550 ====> Client disconnect 0
12:29:05.871448 exit_signal_handler: 15
12:29:05.871714 signalled to die
12:29:05.872040 ========> IPv4 sws (port 21108 pid: 51758) exits with signal (15)

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curl.se: new home

Closes #6172

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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cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631

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server/getpart: provide dummy function to build conversion enabled

code style: use spaces around pluses

getpart: use correct variable type

This fixes the following clang warning:
getpart.c:201:17: warning: cast from function call of type 'CURLcode'
to non-matching type 'int' [-Wbad-fun

getpart: use correct variable type

This fixes the following clang warning:
getpart.c:201:17: warning: cast from function call of type 'CURLcode'
to non-matching type 'int' [-Wbad-function-cast]

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checksrc: warn for assignments within if() expressions

... they're already frowned upon in our source code style guide, this
now enforces the rule harder.

internals: rename the SessionHandle struct to Curl_easy

tests/server: comply with our code style

URLs: change all http:// URLs to https://

Bug #149: Deletion of unnecessary checks before calls of the function "free"

The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is ther

Bug #149: Deletion of unnecessary checks before calls of the function "free"

The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first

This issue was fixed by using the software Coccinelle 1.0.0-rc24.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

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base64: Fixed compilation warnings when using Curl_base64_decode()

curl_sasl.c:294: warning: dereferencing type-punned pointer will break
strict-aliasing rules

getpart.c:201: wa

base64: Fixed compilation warnings when using Curl_base64_decode()

curl_sasl.c:294: warning: dereferencing type-punned pointer will break
strict-aliasing rules

getpart.c:201: warning: dereferencing type-punned pointer will break
strict-aliasing rules

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getpart: Fixed base64 encoded parts following commit e17c1b25bc33eb