Commit Graph

971 Commits

Author SHA1 Message Date
Viktor Szakats
8712fac111
clang-tidy: drop redundant casts
Found via `readability-redundant-casting`. Prone to false positives, not
enabled.

Ref: https://clang.llvm.org/extra/clang-tidy/checks/readability/redundant-casting.html

Closes #20630
2026-02-19 15:27:17 +01:00
Viktor Szakats
bd60df527c
clang-tidy: check readability-redundant-control-flow
Also fix fallouts.

Ref: https://clang.llvm.org/extra/clang-tidy/checks/readability/redundant-control-flow.html

Closes #20625
2026-02-19 12:44:52 +01:00
Viktor Szakats
5fa5cb3825
build: fix -Wunused-macros warnings, and related tidy-ups
- fix internal macro `AN_APPLE_OS` reused between sources without
  resetting it. It may potentially have left the system sha256
  function unused.
- fix to define `WOLFSSL_OPTIONS_IGNORE_SYS` so that it always applies
  to wolfSSL headers, also during feature detection.
- md4, md5, sha256: simplify fallback logic.
- delete 20+ unused macros.
- scope or move macros to avoid `-Wunused-macros` warnings.
- examples: delete unused code.

The warning detects macros defined but not used within the same C
source. It does not warn for macros defined in headers. It also works
with unity builds, but to a lesser extent.

Closes #20593
2026-02-19 00:00:48 +01:00
Viktor Szakats
8494012196
examples/usercertinmem: use modern OpenSSL API, drop mentions of RSA
Replacing API calls deprecated by OpenSSL 3, and also missing
from OpenSSL 3 no-deprecated builds, fixing builds with the latter:
`PEM_read_bio_RSAPrivateKey()`, `RSA_free()`,
`SSL_CTX_use_RSAPrivateKey()`

Also: rename callback to match its `cacertinmem.c` sibling.

Fixes #20595
Closes #20596
2026-02-14 14:07:55 +01:00
Viktor Szakats
61df5f466c
tidy-up: miscellaneous
- curl_ntlm_core, smtp, schannel: fix comments.
- curl_setup.h: fix to undef before define.
- tool_doswin, server/sockfilt: reduce variables scopes.
- tool_doswin: drop an interim variable.
- windows: replace `SOCKET_ERROR` with `0` to align with rest of code.
- libssh2: rename variable to align with rest of code.
- gtls, unit1398: use `#if 0`.
- curl_trc.h, curlx/inet_ntop.h: add missing parentheses in macro
  expressions.
- ldap.c: set empty macro to `do {} while(0)`.
- examples/crawler: rename a non-CURLcode `result` variable.
- CURLINFO_TLS_SESSION: drop stray colon.
- add `const` to casts where missing.
- drop unnecessary parentheses.
- fix indent.
- quote style.
- comment style.
- whitespace, newlines, fold/unfold.

Closes #20554
2026-02-12 14:52:16 +01:00
Viktor Szakats
02c37d269c
docs: compare result against literal CURLE_OK (where missing)
Also scope to result variables.

Closes #20536
2026-02-07 19:40:45 +01:00
Viktor Szakats
85de995208
tidy-up: move literals to right-side of if expressions (where missing)
Closes #20535
2026-02-07 16:41:51 +01:00
Viktor Szakats
a84b041281
build: tidy up curl-specific fstat calls and stat struct type
To avoid redefining the `fstat` system symbol, and to clarify
`struct_stat` is a curl symbol.

- introduce `curlx_fstat()` macro and use it.
- rename `struct_stat` to `curl_struct_stat`.

Also:
- tests: replace direct `curlx_win32_stat()` call with `curlx_stat()`.
- checksrc: disallow direct `_fstati64` and `fstat()` calls, except in
  examples.

Closes #20496
2026-02-02 18:57:13 +01:00
Viktor Szakats
9630593650
build: use more const
Mostly with `char *` types.

Also:
- mime, x509asn1, tool_operate, lib3207: drop redundant casts.
- examples/smooth-gtk-thread: add missing variable declaration.
- reduce variable scopes.
- tests/server: move `data_to_hex()` to its only user: `sws`.

Closes #20489
2026-02-02 12:32:49 +01:00
Viktor Szakats
3003c32cb2
tidy-up: miscellaneous
- INSTALL-CMAKE.md: add missing periods, text fixes.
- md4, md5: sync variables names.
- curl_trc: sync an argument type.
- docs/examples: sync debug/trace function copies, constify, tidy-ups.
- replace commented code with `#if 0`.
- drop redundant parenthesis (macro values, `return`, around single
  variables, function calls).
- fix indentation, apply clang-format in places.

Closes #20481
2026-02-01 00:54:23 +01:00
Viktor Szakats
3aa4fbf2d4
cmake: add CURL_BUILD_EVERYTHING option
To build all targets in a single go, meaning curl and libcurl as normal,
and tests and examples in addition. To build-test everything without
running multiple cmake commands.

Enable with:
- `-DCURL_BUILD_EVERYTHING=ON`
  Special values: `QUICK` to build examples quickly for build test,
  `NOEXAMPLES` to not build examples.

A well-equipped build takes 2.8s of configure time, and 1.7s to build
everything (shared, unity, ninja, prefill), 1.4s with `QUICK`. Without
this option it takes <1s to build curl/libcurl.

Also: streamline `CURL_LINT` internal logic.

Closes #20429
2026-01-26 02:08:02 +01:00
Viktor Szakats
e50aa46fb2
build: update to not need _CRT_NONSTDC_NO_DEPRECATE with MSVC
Use non-deprecated CRT function variants on Windows.

- introduce `curlx_fdopen()`, `curlx_close()` and use them. Map them to
  non-deprecated, underscored, CRT functions on Windows.

- replace `close()` uses with either `sclose()` (for sockets) or
  `curlx_close()` (for files).

- map `fileno`, `unlink`, `isatty` to their non-deprecated, underscored,
  versions on Windows.

- tool_dirhie: map `mkdir` to `_mkdir` on Windows.

- easy: use `_strdup()` on Windows, regardless of how `HAVE_STRDUP` is
  set.

- cmake: assume `HAVE_STRDUP` on Windows. To allow dropping a detection
  hack using `_CRT_NONSTDC_NO_DEPRECATE` with MSVC. Windows always has
  `_strdup()` which the code uses, but also needs `HAVE_STRDUP` defined
  to disable curl's own `strdup()` implementation.

- curl_setup.h: drop `_CRT_NONSTDC_NO_DEPRECATE` as no longer necessary.

Closes #20212
2026-01-20 23:19:54 +01:00
Viktor Szakats
814b54d83e
tidy-up: miscellaneous
- whitespace, indent, comments, clang-format.
- openssl: move feature guards within function blocks.
- tunit: drop redundant blocks.

Closes #20361
2026-01-20 12:37:56 +01:00
Viktor Szakats
b17ef873ae
windows: bump minimum to Vista (from XP)
After this patch curl requires targeting Vista or newer, and a toolchain
with Vista support.

Supported MSVC compilers (VS2010+) all support Vista:
- VS2012+ target Win8 (or later) by default.
- VS2010 targets Win7 by default.

Supported mingw-w64 versions (v3+) all support Vista:
- mingw-w64 v9+ target Win10 by default.
- mingw-w64 v8 and older target Server 2003 (~XP) by default.
  After this patch it may be necessary to override the default Windows
  target version to Vista (or newer) via:
  autotools: `CPPFLAGS=-D_WIN32_WINNT=0x0600`
  cmake: `-DCURL_TARGET_WINDOWS_VERSION=0x0600`
- mingw-w64 v6+ allow changing the default at toolchain build-time.

Notes:
- For non-MSVC, non-mingw-w64 toolchains, `if_nametoindex` needs to be
  allowlisted in `curl_setup.h`, if they do support it.

Fixes #17985 (discussion)
Closes #18009
2026-01-17 11:41:49 +01:00
Viktor Szakats
ac6264366f
tidy-up: miscellaneous
- tool_bname: scope an include.
- `endif` comments.
- Markdown fixes.
- comment tidy-ups.
- whitespace, newlines, indent.

Closes #20309
2026-01-15 13:06:13 +01:00
Viktor Szakats
0431cbe71a
build: globally suppress DJGPP warnings in FD_SET()
Replacing the many local `#pragma` used before this patch,
reducing the number of `__DJGPP__` guards from 58 to 13.

Closes #20299
2026-01-13 23:17:10 +01:00
Viktor Szakats
8680a07589
examples: omit forward declarations, apply misc fixes
- reorder functions to not need forward declarations.
- sync `ephiperfifo.c` and `evhiperfifo.c`.
- drop redundant casts for `calloc()` return value.
- ephiperfifo: silence unused variable warning.
- fix indent and apply clang-format more.

Closes #20296
2026-01-13 19:37:34 +01:00
Viktor Szakats
436e67f65b
tests: replace strcpy() with curlx_strcopy()
Also:
- examples/hsts-preload: apply the same change as it's based on lib1915
  in tests. Make a local clone of `curlx_strcopy()`. Then drop the
  `_CRT_SECURE_NO_WARNINGS` hack, that's no longer necessary.
- curl_setup.h: delete `strcpy()` from the `_CRT_SECURE_NO_WARNINGS`
  list.

Closes #20076
2025-12-23 22:25:39 +01:00
Viktor Szakats
a468e605eb
openssl: drop includes unused or duplicate
Also:
- vquic-tls.h: do not include unused headers for non-H3 builds.
- autotools: stop looking for `openssl/x509.h` header.
- cmp-config.pl: delete exception for `openssl/x509.h`.
- examples: format/comment sync between the two touched files.
- openssl: drop unused `curlx/wait.h` include.

Closes #20049
2025-12-20 13:51:05 +01:00
Viktor Szakats
308c347c8b
tidy-up: miscellaneous
- apply more clang-format.
- lib/version: use `CURL_ARRAYSIZE()`.
- INSTALL-CMAKE.md: sync-up an option description with others.
- examples: delete unused main args.
- examples/ftpgetinfo: document `_CRT_SECURE_NO_WARNINGS` symbol.
- delete remaining stray duplicate lines.
- acinclude.m4: drop an unnecessary x-hack.
- vtls/mbedtls: join a URL split into two lines.
- src/tool_cb_see: add parentheses around macro expressions.
- src/tool_operate: move literals to the right side of comparisons.
- libtests: sync up fopen/fstat error messages between tests.
- curl_setup.h: replace `if ! defined __LP64` with `ifndef __LP64`.
  I assume it makes no difference on Tandem systems, as the latter form
  is already used in `include/curl/system.h`.

Closes #20018
2025-12-18 21:27:58 +01:00
Daniel Stenberg
09f01f28ec
docs: rename CURLcode variables to 'result' 2025-12-17 08:55:12 +01:00
Daniel Stenberg
d21f4372ff
docs: use mresult as variable name for CURLMcode 2025-12-17 08:55:12 +01:00
Viktor Szakats
e88209da1f
examples/threaded-ssl: delete in favor of examples/threaded
After applying a recent fix made to `threaded.c` (formerly
`multithread.c`) to `threaded-ssl.c`, syncing and updating comments,
the two examples turned out to be identical except their test URLs.

Delete one of them to avoid duplication.

Also:
- examples/threaded: scope a variable.
- examples/threaded: merge comments from its deleted sibling.

Follow-up to 61273f5812 #20001
Follow-up to 971e8d661c #19526 #19524

Closes #20002
2025-12-17 00:32:20 +01:00
Viktor Szakats
61273f5812
badwords: catch and fix threading-related words
Also:
- sync newlines between the two threaded examples.

Closes #20001
2025-12-16 21:26:58 +01:00
Viktor Szakats
b714c674f3
synctime: tidy up, make it work on all platforms
The `--synctime` option remains non-UWP-Windows-specific.

Also:
- replace default URL with `ntp.org`.
- delete unused example URL.

Closes #19965
2025-12-14 12:26:37 +01:00
Viktor Szakats
c8375c905e
examples: delete unresponsive example URL
Also:
- sync header layout with rest of examples.
- replace rest of arbitrary website links with example ones.

Closes #19959
2025-12-14 09:06:10 +01:00
Viktor Szakats
fe8393d7db
tidy-up: miscellaneous
- drop stray duplicate empty lines in docs, scripts, test data, include,
  examples, tests.
- drop duplicate PP parenthesis.
- curl-functions.m4: move literals to the right side in if expressions,
  to match rest of the source code.
- FAQ.md: delete language designator from an URL.
- packages: apply clang-format (OS400, VMS).
- scripts/schemetable.c: apply clang-format.
- data320: delete duplicate empty line that doesn't change the outcome.
- spacecheck: extend to check for duplicate empty lines
  (with exceptions.)
- fix whitespace nits

Closes #19936
2025-12-12 04:18:48 +01:00
Viktor Szakats
d9d2e339ce
tidy-up: URLs (cont.) and mdlinkcheck
- add missing ending slashes.
  To avoid duplicates and to use canonical URLs.
- reapply lost updates.
  Follow-up to 2ae983bf4e #19879
- mdlinkcheck: include the `include` directory.
- mdlinkcheck: show unused whitelist items.
- mdlinkcheck: improve debug output.
- mdlinkcheck: delete redundant whitelist items.
- examples/simplessl: lowercase the protocol part.
- BINDINGS: replace one remaining HTTP URL with HTTPS.
  Issue: https://github.com/pycurl/pycurl/issues/892
- BINDINGS: fix a broken link.
- BINDINGS: follow a refresh content redirect.
- KNOWN_BUGS: whitespace.

Closes #19911
2025-12-10 01:21:07 +01:00
Viktor Szakats
e28dc58b65
examples: use 64-bit fstat on Windows
Closes #19896
2025-12-09 13:38:17 +01:00
Viktor Szakats
dfd781ff62
tidy-up: miscellaneous
- gnutls, mbedtls: fix casing in log messages.
- src/tool_cfgable.h: drop unused header.
- appveyor.sh: variable style.
- cmakelint.sh: sync with libssh2, catch `.cmake.in` explicitly.
- examples: drop obsolete comments, exclamation marks.
- fix comment typos, casing.

Closes #19839
2025-12-04 20:14:11 +01:00
Viktor Szakats
0476e4fc65
tidy-up: one more round of formatting nits
Closes #19835
2025-12-04 19:30:59 +01:00
Viktor Szakats
5356bce6ab
windows: use _strdup() instead of strdup() where missing
To replace deprecated `strdup()` CRT calls with the recommended
`_strdup()`.

Refs:
https://learn.microsoft.com/cpp/c-runtime-library/reference/strdup-wcsdup
https://learn.microsoft.com/cpp/c-runtime-library/reference/strdup-wcsdup-mbsdup

Closes #19794
2025-12-01 21:32:09 +01:00
Viktor Szakats
aad3c2e8e1
example: fix formatting nits
Also:
- drop non-portable `__STRING()` macro use where still used.

Closes #19746
2025-11-28 15:01:59 +01:00
Viktor Szakats
193cb00ce9
build: stop overriding standard memory allocation functions
Before this patch curl used the C preprocessor to override standard
memory allocation symbols: malloc, calloc, strdup, realloc, free.
The goal of these is to replace them with curl's debug wrappers in
`CURLDEBUG` builds, another was to replace them with the wrappers
calling user-defined allocators in libcurl. This solution needed a bunch
of workarounds to avoid breaking external headers: it relied on include
order to do the overriding last. For "unity" builds it needed to reset
overrides before external includes. Also in test apps, which are always
built as single source files. It also needed the `(symbol)` trick
to avoid overrides in some places. This would still not fix cases where
the standard symbols were macros. It was also fragile and difficult
to figure out which was the actual function behind an alloc or free call
in a specific piece of code. This in turn caused bugs where the wrong
allocator was accidentally called.

To avoid these problems, this patch replaces this solution with
`curlx_`-prefixed allocator macros, and mapping them _once_ to either
the libcurl wrappers, the debug wrappers or the standard ones, matching
the rest of the code in libtests.

This concludes the long journey to avoid redefining standard functions
in the curl codebase.

Note: I did not update `packages/OS400/*.c` sources. They did not
`#include` `curl_setup.h`, `curl_memory.h` or `memdebug.h`, meaning
the overrides were never applied to them. This may or may not have been
correct. For now I suppressed the direct use of standard allocators
via a local `.checksrc`. Probably they (except for `curlcl.c`) should be
updated to include `curl_setup.h` and use the `curlx_` macros.

This patch changes mappings in two places:
- `lib/curl_threads.c` in libtests: Before this patch it mapped to
  libcurl allocators. After, it maps to standard allocators, like
  the rest of libtests code.
- `units`: before this patch it mapped to standard allocators. After, it
  maps to libcurl allocators.

Also:
- drop all position-dependent `curl_memory.h` and `memdebug.h` includes,
  and delete the now unnecessary headers.
- rename `Curl_tcsdup` macro to `curlx_tcsdup` and define like the other
  allocators.
- map `curlx_strdup()` to `_strdup()` on Windows (was: `strdup()`).
  To fix warnings silenced via `_CRT_NONSTDC_NO_DEPRECATE`.
- multibyte: map `curlx_convert_*()` to `_strdup()` on Windows
  (was: `strdup()`).
- src: do not reuse the `strdup` name for the local replacement.
- lib509: call `_strdup()` on Windows (was: `strdup()`).
- test1132: delete test obsoleted by this patch.
- CHECKSRC.md: update text for `SNPRINTF`.
- checksrc: ban standard allocator symbols.

Follow-up to b12da22db1 #18866
Follow-up to db98daab05 #18844
Follow-up to 4deea9396b #18814
Follow-up to 9678ff5b1b #18776
Follow-up to 10bac43b87 #18774
Follow-up to 20142f5d06 #18634
Follow-up to bf7375ecc5 #18503
Follow-up to 9863599d69 #18502
Follow-up to 3bb5e58c10 #17827

Closes #19626
2025-11-28 10:44:26 +01:00
Viktor Szakats
0b09ad8ecb
examples/multi-uv: simplify passing uv struct
Reported-by: st751228051 on github
Follow-up to c722346518 #19538 #19462
Closes #19707
2025-11-26 13:19:36 +01:00
BANADDA
c722346518
examples/multi-uv: fix invalid req->data access
The on_uv_timeout callback was trying to access req->data as
a curl_context pointer, but uv.timeout.data was never initialized,
making it always NULL. This rendered the code inside the if(context)
block unreachable.

Fixes #19462
Closes #19538
2025-11-26 12:52:10 +01:00
Sunny
a075d1c0d8
examples: fix minor typo
Closes #19683
2025-11-25 08:58:03 +01:00
Viktor Szakats
3c7cf8eac3
examples: tidy-up headers and includes
To have a more similar layout across examples.

Closes #19580
2025-11-18 02:05:07 +01:00
Viktor Szakats
0a2618b265
examples: make functions/data static where missing
Also to avoid compiler warnings on missing declarations.
Missed by CI for these "complicated" examples.

Closes #19579
2025-11-18 01:05:14 +01:00
Viktor Szakats
5fa2d8320c
build: tidy-up MSVC CRT warning suppression macros
- curl_setup.h: replace `_CRT_SECURE_NO_DEPRECATE` with
  `_CRT_SECURE_NO_WARNINGS`, which seems to be the preferred,
  more recent macro for this. Also syncing with libssh2.
  They are equivalent for curl sources with the supported compilers.
- cmake: stop setting `_CRT_SECURE_NO_DEPRECATE` globally for examples.
- examples: suppress CRT deprecation warnings on a per-file basis.
  To make it work when compiling examples out of curl's build systems.
  Use `_CRT_SECURE_NO_WARNINGS`.
- examples: document the functions requiring `_CRT_SECURE_NO_WARNINGS`.
- examples/block_ip: delete superfluous `_CRT_SECURE_NO_WARNINGS`.
- examples/block_ip: limit `_CRT_NONSTDC_NO_DEPRECATE` to MSVC.
- examples/log_failed_transfers: fix to set `_CRT_SECURE_NO_WARNINGS`
  before headers and limit to MSVC.
- curl_setup.h: document which SDKs support `_CRT_NONSTDC_NO_DEPRECATE`.

Closes #19175
2025-11-18 00:49:26 +01:00
Viktor Szakats
1e1ec7f6c2
badwords: add more contractions, fix fallouts
Also fix hits in autotools scripts (not to enforce).

Closes #19576
2025-11-17 19:29:15 +01:00
Viktor Szakats
1b48c6148a
tidy-up: miscellaneous
- schannel: delete superfluous parenthesis.
- tftp: delete stray space from log output.
- ws: update guard comment.
- docs/examples: constify variables.
- runtests/servers: enclose unknown parameter between quotes.
- scripts/perlcheck.sh: drop redundant grep `-E` option.
- THANKS: move names from comments to THANKS.
- sync `--depth` option style across scripts.
- sync git repo URL ending between some scripts.
- BINDINGS.md: drop protocol from archive.org URL path.
- whitespace, indent, unfold lines.

Closes #19565
2025-11-17 13:32:43 +01:00
Viktor Szakats
554dfa5568
build: drop Windows CE / CeGCC support
Windows CE support was limited to successful builds with ming32ce
(a toolchain that hasn't seen an update since 2009, using an ancient gcc
version and "old mingw"-style SDK headers, that curl deprecated earlier).
Builds with MSVC were broken for a long time. mingw32ce builds were never
actually tested and runtime and unlikely to work due to missing stubs.
Windows CE toolchains also miss to comply with C89. Paired with lack of
demand and support for the platform, curl deprecated it earlier.

This patch removes support from the codebase to ease maintaining Windows
codepaths.

Follow-up to f98c0ba834 #17924
Follow-up to 8491e6574c #17379
Follow-up to 2a292c3984 #15975

Closes #17927
2025-11-15 15:35:23 +01:00
Viktor Szakats
2dc71ba8bf
badwords: check indented lines in source code, fix fallouts
- badwords.pl: add `-a` option to check all lines in source code files.
  Before this patch indented lines were skipped (to avoid Markdown code
  fences.)
- GHA/checksrc: use `-a` when verifying the source code.
- GHA/checksrc: disable `So` and `But` rules for source code.
- GHA/checksrc: add docs/examples to the verified sources.
- badwords.txt: delete 4 duplicates.
- badwords.txt: group and sort contractions.
- badwords.txt: allow ` url = `, `DIR`, `<file name`.

Closes #19536
2025-11-15 13:25:02 +01:00
Stefan Eissing
971e8d661c
examples/multithread: fix race condition
Reported-by: Nick Korepanov
Fixes #19524
Closes #19526
2025-11-14 15:11:53 +01:00
Viktor Szakats
96500f466e
tidy-up: result code variable names in tests and examples
Sync outliers with the rest of the code.

Also:
- return error in some failed init cases, instead of `CURLE_OK`:
  1908, 1910, 1913, 2082, 3010
- lib1541: delete unused struct member.

Closes #19515
2025-11-14 01:47:12 +01:00
Daniel Stenberg
0afb52a0cd
code: minor indent fixes before closing braces
Closes #19512
2025-11-13 17:27:40 +01:00
Viktor Szakats
6384e2aca0
checksrc: disallow atoi and atol globally
No longer used in core and test code.

Also: allowlist in docs/examples.

Closes #19508
2025-11-13 14:28:25 +01:00
Daniel Stenberg
8e321a53df
examples/crawler: fix variable
A variable missed in the previous rename cleanup

Follow-up to 928363f28c
Reported-by: Gisle Vanem
Closes #19446
2025-11-10 13:40:13 +01:00
Daniel Stenberg
928363f28c
examples: consistent variable naming across examples
- 'CURL *' handles are called 'curl'
- 'CURLM *' handles are called 'multi'
- write callbacks are called 'write_cb'
- read callbacs are called 'read_cb'
- CURLcode variables are called 'res'

It makes the examples look and feel more consistent. It allows for
easier copy and pasting between examples.

Closes #19299
2025-10-31 16:44:57 +01:00