Commit Graph

425 Commits

Author SHA1 Message Date
Viktor Szakats
dd37d6970c
checksrc: fix possible endless loop when detecting BANNEDFUNC
If the source line had square brackets before the match, the stripping
of the banned function left the original line intact, and repeated the
check on it forever. E.g. with banned function `open` in `lib518.c`:
```c
t518_testfd[0] = open(DEV_NULL, O_RDONLY);
```

Closes #18775
2025-09-30 11:32:12 +02:00
Viktor Szakats
20142f5d06
build: avoid overriding system symbols for fopen functions
By introducing wrappers for them in the curlx namespace:
`curlx_fopen()`, `curlx_fdopen()`, `curlx_fclose()`.

The undefine/redefine/`(function)()` methods broke on systems
implementing these functions as macros. E.g. AIX 32-bit's `fopen()`.

Also:
- rename `lib/fopen.*` to `lib/curl_fopen.*` (for `Curl_fopen()`)
  to make room for the newly added `curlx/fopen.h`.
- curlx: move file-related functions from `multibyte.c` to `fopen.c`.
- tests/server: stop using the curl-specific `fopen()` implementation
  on Windows. Unicode isn't used by runtests, and it isn't critical to
  run tests on longs path. It can be re-enabled if this becomes
  necessary, or if the wrapper receives a feature that's critical for
  test servers.

Reported-by: Andrew Kirillov
Bug: https://github.com/curl/curl/issues/18510#issuecomment-3274393640

Follow-up to bf7375ecc5 #18503
Follow-up to 9863599d69 #18502
Follow-up to 3bb5e58c10 #17827

Closes #18634
2025-09-30 01:10:36 +02:00
Viktor Szakats
8538856662
perlcheck: parallelize
Follow-up to 34b1e146e4 #18745

Closes #18750
2025-09-26 23:50:53 +02:00
Viktor Szakats
34b1e146e4
perlcheck: add script, run in CI, fix fallouts
Add script to run all Perl sources through `perl -c` to ensure no
issues, and run this script via GHA/checksrc in CI.

Fallouts:
- fix two repeated declarations.
- move `shell_quote()` from `testutil.pm` to `pathhelp.pm`, to
  avoid circular dependency in `globalconfig.pm`.

Closes #18745
2025-09-26 14:47:33 +02:00
Daniel Stenberg
b011e3fcfb
vssh: drop support for wolfSSH
The implementation was incomplete and lesser than the other backends. No
one ever reported a bug or requested enhancements for this, indicating
that this backend was never used.

Closes #18700
2025-09-24 22:59:33 +02:00
Viktor Szakats
c9eff26c17
tool_doswin: fix to use curl socket functions
Replace `WSASocketW()` with `CURL_SOCKET()`. Also replace a call
to `socketclose()` with `sclose()`. According to a comment,
`socketclose()` was chosen to silence test 1498 (and 2300) reporting
`MEMORY FAILURE`. These reports were accurate, and were caused by
calling `WSASocketW()` instead of `socket()` (now `CURL_SOCKET()`).

This also fixes the curl `sclose()` call on an error branch, which is
now correctly paired with a curl socket open. The mismatched open/close
calls caused an issue in TrackMemory-enabled (aka `CURLDEBUG`) builds.

Docs confirm that `socket()` is defaulting to overlapped I/O, matching
the replaced `WSASocketW()` call:
https://learn.microsoft.com/windows/win32/api/winsock2/nf-winsock2-socket#remarks

Also:
- checksrc: ban `WSASocket*()` functions.
- report `SOCKERRNO` instead of `GetLastError()` for socket calls,
  to match the rest of the codebase.

Follow-up to 9a2663322c #17572

Closes #18633
2025-09-22 10:11:30 +02:00
Daniel Stenberg
1f0f0bdb19
managen: strict protocol check
- protocols MUST match one in the accept-list
- protocols are typically all uppercase
- drop All
- use SCP and SFTP instead of SSH
- add Protocols: to some options previously missing one

Closes #18675
2025-09-22 09:06:00 +02:00
Viktor Szakats
bf7375ecc5
build: avoid overriding system symbols for socket functions
Before this patch `accept4()`, `socket()`, `socketpair()`, `send()` and
`recv()` system symbols were remapped via macros, using the same name,
to local curl debug wrappers. This patch replaces these overrides by
introducing curl-namespaced macros that map either to the system symbols
or to their curl debug wrappers in `CURLDEBUG` (TrackMemory) builds.

This follows a patch that implemented the same for `accept()`.

The old method required tricks to make these redefines work in unity
builds, and avoid them interfering with system headers. These tricks
did not work for system symbols implemented as macros.

The new method allows to setup these mappings once, without interfering
with system headers, upstream macros, or unity builds. It makes builds
more robust.

Also:
- checksrc: ban all mapped functions.
- docs/examples: tidy up checksrc rules.

Follow-up to 9863599d69 #18502
Follow-up to 3bb5e58c10 #17827

Closes #18503
2025-09-20 13:44:59 +02:00
Viktor Szakats
1429858bce
tidy-up: update MS links, allow long URLs via checksrc
- update Microsoft documentation links.
  (also drop language designator where present.)

- checksrc: allow longer than 78 character lines if they
  contain a https URL. To make these links easier to use and parse.

- merge links that were split into two lines.

Closes #18626
2025-09-20 11:49:23 +02:00
Viktor Szakats
ad26a6cb99
tidy-up: avoid using the reserved macro namespace
To avoid hitting `-Wreserved-macro-identifier` where possible.

- amigaos: introduce local macro instead of reusing `__request()`.
- easy_lock: avoid redefining `__has_builtin()`.
  Follow-up to 33fd57b8ff #9062
- rand: drop interim macro `_random()`.
- windows: rename local macro `_tcsdup()` to `Curl_tcsdup()`.
  To avoid using the reserved macro namespace and to avoid
  colliding with `_tcsdup()` as defined by Windows headers.
- checksrc: ban `_tcsdup()` in favor of `Curl_tcsdup()`.
- tool_doswin: avoid redefining `_use_lfn()` (MS-DOS).
- tool_findfile: limit `__NO_NET_API` hack to AmigaOS.
  Syncing this pattern with `lib/netrc.c`.
  Follow-up to 784a8ec2c1 #16279
- examples/http2-upload: avoid reserved namespace for local macro.

More cases will be removed when dropping WinCE support via #17927.

Cases remain when defining external macros out of curl's control.

Ref: #18477
Closes #18482
2025-09-20 02:27:06 +02:00
Daniel Stenberg
dbe4e28d57
managen: render better manpage references/links
- When an option name is used in text, this script no longer outputs the
  short plus long version in the manpage output. It makes the text much
  more readable.

  This always showing both verions was previously done primarily to make
  sure roffit would linkify it correctly, but since roffit 0.17 it
  should link both long or short names correctly.

- When managen outputs generic text about options at the end of the
  description it now highlights them properly so that they too get
  linkified correctly in the HTML version. For consistency.

Closes #18580
2025-09-17 15:49:15 +02:00
Daniel Stenberg
0a27a506b1
managen: ignore version mentions < 7.66.0
Only mention version specific details for versions from within the last
six years.

Closes #18583
2025-09-17 15:47:34 +02:00
Viktor Szakats
a4196e2249
tidy-up: whitespace
Closes #18553
2025-09-15 15:00:11 +02:00
Daniel Stenberg
839b22863e
ssl-sessions.md: mark option experimental
Also make managen output the experimental text with the correct
prefix/margin for the ascii version.

Closes #18523
2025-09-11 17:01:07 +02:00
Daniel Stenberg
32909591d2
docs: put <> within backticks in titles
To render better markdown. Make managen warn if present "unticked" and
unescaped.

Closes #18498
2025-09-08 22:42:53 +02:00
Daniel Stenberg
f333a73892
top-complexity: set threshold to 70
Closes #18475
2025-09-04 10:06:13 +02:00
Stefan Eissing
24badd29f5
multi: limit-rate revisited
Tweaks around handling of --limit-rate:

* tracing: trace outstanding timeouts by name
* multi: do not mark transfer as dirty that have
  an EXPIRE_TOOFAST set
* multi: have one static function to asses speed limits
* multi: when setting EXPIRE_TOOFAST remove the transfers
  from the dirty set
* progress: rename vars and comment on how speed limit
  timeouts are calculated, for clarity
* transfer: when speed limiting, exit the receive loop
  after a quarter of the limit has been received, not
  on the first chunk received.
* cf-ip-happy.c: clear EXPIRE_HAPPY_EYEBALLS on connect
* scorecard: add --limit-rate parameter to test with
  speed limits in effect

Closes #18454
2025-09-03 15:53:41 +02:00
Daniel Stenberg
aa4596a97e
mdlinkcheck: handle links with a leading slash properly
Ref: #18372
Closes #18382
2025-08-23 23:07:13 +02:00
Daniel Stenberg
f5ee566dbc
top-complexity: maximum accepted set to 72
Down from 80. Show all functions above 60.

Closes #18354
2025-08-22 16:22:36 +02:00
Viktor Szakats
3298a43133
spelling: file system
Closes #18348
2025-08-22 15:53:41 +02:00
Stefan Eissing
88fc6c491f
threaded-resolver: fix shutdown
Changed strategy to start up and terminate resolver thread.

When starting up:

Start the thread with mutex acquired, wait for signal from thread that
it started and has incremented the ref counter. Thread set
pthread_cancel() to disabled before that and only enables cancelling
during resolving itself. This assure that the ref counter is correct and
the unlinking of the resolve context always happens.

When shutting down resolving:

If ref counting shows thread has finished, join it, free everything. If
thread has not finished, try pthread_cancel() (non Windows), but keep
the thread handle around.

When destroying resolving:

Shutdown first, then, if the thread is still there and 'quick_exit' is
not set, join it and free everything. This might occur a delay if
getaddrinfo() hangs and cannot be interrupted by pthread_cancel().

Destroying resolving happens when another resolve is started on an
easy handle or when the easy handle is closed.

Add test795 to check that connect timeout triggers correctly
when resolving is delayed. Add debug env var `CURL_DNS_DELAY_MS`
to simulate delays in resolving.

Fix test1557 to set `quick_exit` and use `xxx.invalid` as domain
instead of `nothing` that was leading to hangers in CI.

Closes #18263
2025-08-21 09:26:49 +02:00
Stefan Eissing
37cecfc7b9
websocket: support CURLOPT_READFUNCTION
Add support for CURLOPT_READFUNCTION with WebSocket urls when *not* in
connect-only mode, e.g. when using curl_multi_perform.

Install the callback function and set CURLOPT_UPLOAD. Return
CURL_READFUNC_PAUSE when having nothing more to send and unpause the
transfer when more data is ready.

This will send the read bytes in a WebSocket BINARY frame.

Add support for this mode in the pytest "ws_data" client and have all
tests run in 'curl_ws_send/recv' and 'peform' mode as well.

Add `curl_ws_start_frame()`. Document, cover in libcurl-ws.md and
explain the READFUNCTION mode for websockets.

Add example `websocket-updown` for this.

Closes #17683
2025-08-11 23:28:54 +02:00
Stefan Eissing
1ad2009ad6
multi: add new information extraction method
Adds `curl_off_t curl_multi_get_offt(CURLM *multi_handle, CURLMinfo_offt
info)` to the multi interface with enums:

* CURLMINFO_XFERS_CURRENT: current number of transfers
* CURLMINFO_XFERS_RUNNING: number of running transfers
* CURLMINFO_XFERS_PENDING: number of pending transfers
* CURLMINFO_XFERS_DONE: number of finished transfers to read
* CURLMINFO_XFERS_ADDED: total number of transfers added, ever

Add documentation for functions and info enums.

Add use in the curl command line tool to replace two static
variables counting the same "from the outside".

refs #17870
Closes #17992
2025-08-04 23:48:57 +02:00
Viktor Szakats
1644a49ab8
configure: if no perl, disable unity and shell completion, related tidy ups
Also:
- GHA/linux, macos: test `install` with autotools too.
- GHA/linux, macos: enable fish and zsh completion in an autotools job.
- scripts: drop dynamic perl checks redundant after this patch.
- scripts: drop two interim variables.
- autotools: make `build-certs` target check perl first.
- autotools: replace `$(PERL)` with `@PERL@` to match the pattern used
  in most automake scripts. For consistency. This makes `PERL` be
  defined at configure-time, as opposed to make-time, for these cases
  now.

Closes #18141
2025-08-04 14:55:10 +02:00
Daniel Stenberg
18e00c8ed0
managen: reset text mode at end of table marker
It previously mostly ignored it which lead to bad format after a table
has ended with "##".

Closes #18139
2025-08-01 23:24:32 +02:00
Daniel Stenberg
8df0a5ba32
release-notes: fix warning
Follow-up to 2ec54556d4

Closes #18133
2025-08-01 16:02:54 +02:00
Daniel Stenberg
4b1a5fe436
top-complexity: set cutoff level to 80
Closes #18080
2025-07-30 09:13:50 +02:00
Daniel Stenberg
7b8594176d
delta: fix counters
Follow-up to b1df1d38af

Closes #18072
2025-07-29 09:45:07 +02:00
Viktor Szakats
577ec09412
contrithanks: fix for BSD sed tool
Fixing on macOS, and possibly other BSDs:
```
sed: 83: ./docs/THANKS-filter: RE error: illegal byte sequence
```
Where line 83 contains `\xED`.

Switch to raw encoding to avoid `sed` evaluating the stream of bytes.

Ref: #18061

Closes #18062
2025-07-28 17:29:26 +02:00
Viktor Szakats
b1df1d38af
delta: fix warnings, fix for non-GNU date tool
It makes the script run on BSD-like envs.

Follow-up to f63bdea790 #18058
Follow-up to 2ec54556d4 #17877

Closes #18061
2025-07-28 17:29:26 +02:00
Daniel Stenberg
f63bdea790
delta: drop the warnings+strict
They really don't do much good here and I rather do this than adding
'my' on 40+ lines.

Follow-up from 2ec54556d4

Closes #18058
2025-07-28 14:02:52 +02:00
Viktor Szakats
2ec54556d4
scripts: enable strict warnings in Perl where missing, fix fallouts
- add 'use warnings' and 'use strict' where missing from Perl scripts.
- fix 'Use of uninitialized value'.
- fix missing declarations.
- test1140.pl: fix 'Possible precedence issue with control flow operator'.
- fix other misc issues.

Most actual errors found during this PR were fixed and merged via
separate PRs.

Likely there are remaining warnings not found and fixed in this PR.

Closes #17877
2025-07-27 22:35:18 +02:00
Viktor Szakats
89771d19d5
tidy-up: prefer ifdef/ifndef for single checks
Closes #18018
2025-07-27 22:35:17 +02:00
Viktor Szakats
c37e06c642
build: fix build errors/warnings in rare configurations
- vtls: fix unused variable and symbols.
- ftp: fix unused variable.
- http: fix unused variables.
- smtp: fix unsued variable.
- wolfssl: fix unused variable with !proxy.
- libssh: fix unused argument.
- curl_trc: sync guards between declaration and definition.
- curl_trc: add missing guard for `Curl_trc_ssls` when !verbose.
- curl_trc: fix errors with !http + http3.
- curl_trc: fix missing function with !http + nghttp2.
- cf-h2-proxy: disable when !http + nghttp2, to avoid calling undeclared
  functions.
- sha256: fix missing declaration in rare configs.
- md4: fix symbol conflict when building GnuTLS together with AWS-LC or
  wolfSSL. By prioritizing the latter two. AWS-LC has no option
  to disable the clashing symbol. wolfSSL does, but the most seamless is
  to skip including GnuTLS's standalone `md4.h` to avoid the clash.
- build: fix errors with !http + nghttp2.
- build: catch !ssl + ssls-export combination in source. Convert
  build-level errors to warnings.
- build: fix errors with !http + http3.
- build: fix building curl tool and unit1302 in rare combinations.
  By always compiling base64 curlx functions.

- cmake: add `_CURL_SKIP_BUILD_CERTS` internal option.
  To disable automatically building certs with the testdeps target.
  To improve performance when testing builds.
  (used locally to find the failing builds fixed in this PR.)

Closes #17962
2025-07-23 22:17:03 +02:00
Daniel Stenberg
1962573a93
release-notes.pl: ignore dupes on input and output
Re-running this script now makes it track the already mentioned
changelog entries and not add them again even if the git log contains
them.

This makes the script better handle reruns in a release branch after
rebasing on a later version of master.

Closes #17937
2025-07-15 18:28:37 +02:00
Daniel Stenberg
f5a44e1549
top-complexity: also output average complexity
Closes #17920
2025-07-14 08:38:45 +02:00
Viktor Szakats
9bdd08b3b2
GHA: minor tidy-ups
- GHA/checksrc: make a step name more accurate.
- cmakelint.sh: make sure to run from project root.
  To make it easier to run locally.
- cmakelint.sh: use `set -eu`.

Closes #17915
2025-07-13 11:52:08 +02:00
Patrick Stoeckle
86f43af951
misc: fix typos
Just fixing some typos using: https://github.com/crate-ci/typos

Closes #17904
2025-07-12 08:59:44 +02:00
Viktor Szakats
75395eb003
scripts: fix to quote the copyright email address
Also:
- fix the generated output in repo files.

Cherry-picked from #17877
Closes #17903
2025-07-12 08:59:44 +02:00
Viktor Szakats
ddcfd2d511
tidy-up: whitespace (more in Perl)
Follow-up to 8eab2b7086 #17896
Cherry-picked from #17877
Closes #17901
2025-07-12 08:59:44 +02:00
Viktor Szakats
88ff396549
checksrc-all: rewrite in Perl, remove checksrc.bat
`checksrc.bat` was outdated and required Perl for `checksrc.pl` anyway.
Rewrite `checksrc-all.sh` in Perl, making it usable in envs without
a POSIX shell.

Closes #17882
2025-07-11 12:28:46 +02:00
Viktor Szakats
ef2ccf862f
memory: stop overriding unused wcsdup()/_wcsdup() system functions
Also ban them via `checksrc`.

The code continues to use `_tcsdup()`.

Assisted-by: Daniel Stenberg

Closes #17840
2025-07-07 15:03:31 +02:00
Daniel Stenberg
c9bb9cd165
unit tests: extract "private" prototypes at build time
In order to do unit tests for private functions, functions that are
marked UNITTEST but without a global scope in the library, functions
that do not have prototypes in their corresponding header file, unit
tests previously brought their own private prototype *copy* into the
unit test.

This was error-prone when the internal function changes but the change
might be missed in the unit test which then uses an outdated prototype
copy for testing.

This change removes the private prototypes from unit tests and instead
introduces a C file parser that parses the specific C files and extracts
the necessary unit test prototypes into a generated header file for unit
tests to use. This geneated lib/unitprotos.h header is then included by
unit tests that need private prototypes.

Assisted-by: Viktor Szakats
Closes #17750
2025-06-30 23:16:40 +02:00
Dan Fandrich
0b98f596c8 firefox-db2pem: avoid use of eval in script
This could potentially be exploited by manipulating nicknames in the
cert DB.

Reported-by: behindtheblackwall on hackerone
Closes #17766
2025-06-28 21:12:27 -07:00
Viktor Szakats
f9656445ba
checksrc: reduce exceptions, apply again to curlx
- tests/libtest: move exception to `stub_gssapi.h`.
- tests/libtest: move remaining exception to `testtrace.c`.
- tests/server: drop obsolete exception.
- docs/examples: move `BANNEDFUNC` exceptions to local files (3 lines).
- docs/examples: move `ERRNOVAR` exception to `ephiperfifo.c`.
- docs/examples: drop `typedef struct` (8 files).
- lib/curlx: add `.checksrc` with banned funcs copied from lib.
- checksrc: ban `strncpy`, `strtok_r`, `strtoul` by default.
  Drop local bans. Add exception for `strtoul` to `tests/server'.
- lib, src: sync banned funcs.

Also:
- REUSE: drop `stunnel.pem`, it no longer exists.
- docs/examples: formatting.
- docs/examples: simplify some `sizeof()`s.

Closes #17764
2025-06-27 17:33:35 +02:00
Viktor Szakats
e088e10454
cmake: replace the way clang-tidy verifies tests, fix issues found
Replace existing `mk-unity.pl` `--embed` workaround with running
`clang-tidy` manually on individual test source instead. This aligns
with how clang-tidy works and removes `mk-unity.pl` from the solution.

Also:
- mqttd: fix potentially uninitialized buffer by zero filling it.
  ```
  tests/server/mqttd.c:484:41: error: The left operand of '<<' is a garbage value
    [clang-analyzer-core.UndefinedBinaryOperatorResult,-warnings-as-errors]
    484 |       payload_len = (size_t)(buffer[10] << 8) | buffer[11];
        |                                         ^
  [...]
  tests/server/mqttd.c:606:45: error: The left operand of '<<' is a garbage value
    [clang-analyzer-core.UndefinedBinaryOperatorResult,-warnings-as-errors]
    606 |       topiclen = (size_t)(buffer[1 + bytes] << 8) | buffer[2 + bytes];
        |                                             ^
  ```
- sockfilt: fix potential out-of-bound pointer:
  ```
  tests/server/sockfilt.c:1128:33: error: The 2nd argument to 'send' is a buffer
     with size 17010 but should be a buffer with size equal to or greater than
     the value of the 3rd argument (which is 18446744073709551615)
     [clang-analyzer-unix.StdCLibraryFunctions,-warnings-as-errors]
   1128 |         ssize_t bytes_written = swrite(sockfd, buffer, buffer_len);
        |                                 ^
  ```
- clang-tidy: suppress bogus `bzero()` warnings that happens
  inside the notorious `FD_ZERO()` macros, on macOS.

Ref: https://github.com/curl/curl/pull/17680#issuecomment-2991730158

Closes #17705
2025-06-22 23:08:46 +02:00
Viktor Szakats
6a0cd4feb7
tests: make individual test sources compile cleanly
Tidy up headers and includes to ensure all individual test source
compile cleanly (but not link). To allow running clang-tidy (and
possibly other static analyzers) on them. It also improves readability
and allows to verify them locally, without the bundle logic.

clang-tidy ignores #included C files, so it's blind to bundle C files
the include these tests. The current workaround of embedding has
a couple of downsides:. meaningless filenames and line numbers,
missing issues, messing up self header paths. Thus, running it on
individual sources would be beneficial.

Also:
- de-duplicate includes.
- untangle some includes.
- formatting/indentation fixes.
- merge `getpart.h` into `first.h`.

Ref: https://github.com/curl/curl/pull/17680#issuecomment-2991730158

Closes #17703
2025-06-22 15:58:15 +02:00
Daniel Stenberg
84b62696d9
top-complexity: lower max allowed complexity threshold to 90
Down from 100. Also make it show all functions with complexity > 65
(down from 70).

Closes #17689
2025-06-21 10:52:15 +02:00
Viktor Szakats
739c09c8a4
tests: bundle http clients, de-dupe, enable for MSVC
To make building the http client tests faster, with no duplication, by
using the build method that other test binaries already use.

The difference compared to other tests is that these don't use internal
libcurl headers or code. With the exception of `curl_config.h`, for
a feature macro.

Before this patch, these tests were built like examples.

Also:
- de-duplicate code and give unique names to colliding symbols.
- add local getopt implementation and enable all code for MSVC.
  Adapted for curl via Public Domain source:
  4e618ef782/getopt.h
  Credits-to: Christopher Wellons
  Thanks!

Closes #17627
2025-06-16 12:29:05 +02:00
Viktor Szakats
cde81e4398
memdebug: include in unity batch
Before this patch `memdebug.c` was compiled as a separate source in
unity builds. This was necessary because `memdebug.c` failed to compile
if `memdebug.h` was included before it, in `CURLDEBUG` mode. This patch
fixes this issue and allows to compile `memdebug.c` as part of the unity
source batch. This removes an exception and makes builds perform a notch
better.

- introduce `CURL_SCLOSE()` macro as an immutable synonym of `sclose()`.
- memdebug: replace `sclose()` reference with `CURL_SCLOSE()` to compile
  as expected when `sclose()` is overridden by `memdebug.h`.
- memdebug: make it not break when including `memdebug.h` before it in
  `CURLDEBUG` mode. Do this by calling low-level functions as
  `(function)`.
- autotools, cmake: drop memdebug exception, include it like any other
  source file. This is now possible because `memdebug.c` doesn't break
  if `memdebug.h` was included before it, in `CURLDEBUG` builds.
- mk-unity: drop `--exclude` option. No longer used after this patch.
- drop `MEMDEBUG_NODEFINES` macro hack. No longer necessary.

Ref: #16747
Closes #16746
Closes #16738
Closes #17631
2025-06-16 09:35:01 +02:00