Commit graph

37975 commits

Author SHA1 Message Date
Stefan Eissing
bfb79de206
urldata: byebye conn->hostname_resolve
The strdup() of the hostname to resolve is unnecessary as the sync
resolve code does not keep the string and the async code makes copies
already.

Remove the member from `connectdata`.

Closes #20833
2026-03-06 22:40:29 +01:00
Viktor Szakats
9a3afc1083
cmake: fix LOCATION property access condition (debug)
To match other parts of curl's CMake script and the CMake source.

Ref: https://gitlab.kitware.com/cmake/cmake/-/blob/v3.18.0/Source/cmTargetPropertyComputer.h?ref_type=tags#L68-101

Follow-up to c6cfb2a2f3 #20828

Closes #20838
2026-03-06 15:35:27 +01:00
Viktor Szakats
009facd232
cmake: improve clang-tidy test command-line reproduction
- also query `INTERFACE_COMPILE_DEFINITIONS` and
  `INTERFACE_COMPILE_OPTIONS`.
  To further sync clang-tidy manual command-lines with the C compiler
  command-lines generated by CMake. In practice this adds `-I` options
  (via `INTERFACE_COMPILE_OPTIONS`) to the end of the command-line for
  dependency header directories. It does not change the outcome of
  clang-tidy runs.

- limit querying `COMPILE_DEFINITIONS` and `COMPILE_OPTIONS` to the top
  target, the test itself. To not include options such as
  `-DCURL_HIDDEN_SYMBOLS` and `-fvisibility=hidden` (when set) via
  the libcurl shared lib.
  To sync with the actual C compiler command-line.

- drop redundant `unset()`.

- rename local function to be more specific.

Follow-up to d9386a2f8e #20759

Closes #20829
2026-03-06 04:56:33 +01:00
Viktor Szakats
c6cfb2a2f3
cmake: fix LOCATION property read errors in target debug function
Exclude reading certain props for certain target types to avoid these errors:
```
CMake Error at CMake/Utilities.cmake:71 (get_property):
  The LOCATION property may not be read from target "...".  Use the target
  name directly with add_custom_command, or use the generator expression
  $<TARGET_FILE>, as appropriate.
```
(and the same in line 78.)

Follow-up to 855acb3bb0 #17701

Closes #20828
2026-03-06 04:04:09 +01:00
Viktor Szakats
37f5e3960f
spelling: bump codespell to 2.4.2, fix fallouts
Closes #20825
Closes #20827
2026-03-06 00:30:32 +01:00
Viktor Szakats
3a2fdeb5af
unit3205: drop NOLINT
In favor or a small code change the silences the clang-tidy warning.

Follow-up to b1f853a384 #20731

Closes #20820
2026-03-05 13:50:56 +01:00
Viktor Szakats
0742fd5c80
cmake: mark two internal options as advanced
To omit them from CMake GUI option listings.

Follow-up to c37e06c642 #17962
Follow-up to 6ab1fa423b #16278

Closes #20818
2026-03-05 04:00:08 +01:00
Max Dymond
70ec11358c socks: ensure DNS is freed in failure cases.
In several error cases in socks.c the DNS struct is not freed, which
leads to memory leaks.

Found by: OSS-Fuzz: 447858136

Closes #20813
2026-03-04 17:33:06 +00:00
Viktor Szakats
38ee35353c
examples: improve OpenSSL certificate examples
- add/fix/synchronize error messages and comments.
- consistently return error from the callback on failure.
- fix potential leaks on OpenSSL API failures.
- fix to not pass the nul-terminator to BIO read.
- scope a variable.
- sync code/formatting between the two examples.

Closes #20807
2026-03-04 12:37:31 +01:00
Daniel Stenberg
7079f1d39c
usercertinmem: use the correct cert BIO
PEM_read_bio_PrivateKey() is called with the wrong BIO, so the private
key is not loaded.

Follow-up to 8494012196

Pointed out by Codex Security
Closes #20800
2026-03-03 23:16:08 +01:00
Daniel Stenberg
ad58e07b54
curl.h: remove CURLPROTO_MQTTS from the public header
- the value collided with the internal one used for WebSocket
- we add all new ones as internal bits
- bump to 64-bit internal type
- introduce new define for setting all protocols (CURLPROTO_64ALL)

Reported by Codex Security

Closes #20798
2026-03-03 23:14:34 +01:00
Daniel Stenberg
3d4a701233
config2setopts: restore proper ignoring of CAINFO BLOB option errors
A regression from refactors

Spotted by Codex Security

Closes #20799
2026-03-03 22:54:23 +01:00
Daniel Stenberg
7577ed7e86
schannel: fix UAF in client cert store thumbprint handling
Follow-up to 10bb489b22

Found by Codex Security
Closes #20801
2026-03-03 22:14:26 +01:00
Daniel Stenberg
d9c2c64337
openssl: adapt to OpenSSL master adding const to more APIs
Closes #20797
2026-03-03 17:42:34 +01:00
Viktor Szakats
91e06fde1b
cmake: fix building with CMAKE_FIND_PACKAGE_PREFER_CONFIG=ON
This CMake global custom option tells it to find dependencies as cmake
Configs first, and only then look for `Find*` modules. This may result
in `find_package()` succeeding, but without actually creating `CURL::*`
imported targets the curl build scripts are expecting.

For dependencies with curl-specific, local, `Find*` modules, we always
want to use them, via the module detection method, and never a
Config-based detection. Ensure this by passing the `MODULE` option to
`find_package()` and `find_dependency()` to make them use `Find*`
modules unconditionally, making them work as expected with the
`CMAKE_FIND_PACKAGE_PREFER_CONFIG=ON` option set.

curl uses local Find modules for all dependencies except OpenSSL and
ZLIB. The latter two keep using either CMake's built-in Find modules or
Config method as before this patch.

Also:

- apply the same change to `curl-config.cmake`. To fix consuming curl
  with this option set.
  Authored-by: Valerie Snyder
  Ref: #20764
  Follow-up to 16f073ef49 #16973

- GHA/distcheck: add a job testing both building and consuming curl with
  this option set. (takes 15 seconds)
  Use custom NGHTTP2 configuration for an extra twist (not required
  to trigger this issue.)
  Follow-up to fcde8d7e37 #20773

Reported-by: Valerie Snyder
Fixes #20729

Closes #20784
2026-03-03 16:33:21 +01:00
Daniel Stenberg
3d708e239b
urlapi: use U_CURLU_URLDECODE when toggling it off unsigned
In this use case 'unsigned value &= ~DEFINE;

As otherwise the right side is treated as signed, which annoyingly
triggers UBSan. The U_* defines are local versions of the public define,
only typecast to unsigned.

Reported-by: xmoezzz on github
Fixes #20753
Closes #20769
2026-03-03 16:02:50 +01:00
Daniel Stenberg
cc85cdf3c5
docs: avoid using the word 'magic'
It's never actually magic.

Closes #20796
2026-03-03 15:32:13 +01:00
Daniel Stenberg
b4dba346cd
stop using the word 'just'
Everywhere. In documentation and code comments.

It is almost never a good word and almost always a filler that should be
avoided.

Closes #20793
2026-03-03 15:30:22 +01:00
renovate[bot]
4b583b7585
Dockerfile: update debian:bookworm-slim digest to 74d56e3
Closes #20714
2026-03-03 01:36:55 +01:00
Viktor Szakats
86a2a6b547
cmake: stop disabling C4774 after replacing snprintf(), update comment (MSVC)
- update comment for `-wd4710` option.
  Ref: https://ci.appveyor.com/project/curlorg/curl/builds/53627545
- stop suppressing C4774. Not triggered by the replacement call
  `vsnprintf()`, as also confirmed by local tests.
  Follow-up to 192b9214a7
  Ref: https://devblogs.microsoft.com/cppblog/format-specifiers-checking/
  Ref: https://learn.microsoft.com/cpp/error-messages/compiler-warnings/compiler-warnings-c4600-through-c4799

Follow-up to 64f28b8f88 #20765

Closes #20792
2026-03-03 00:46:41 +01:00
Daniel Díaz
3aa63896ae
mbedtls: guard TLS 1.3 + session tickets usage inside ifdef
If TLS 1.3 is not supported, the call to
`mbedtls_ssl_conf_tls13_enable_signal_new_session_tickets()` fails
during compilation:
```
curl-8.18.0/lib/vtls/mbedtls.c: In function 'mbed_connect_step1':
curl-8.18.0/lib/vtls/mbedtls.c:809:3: error: implicit declaration of function 'mbedtls_ssl_conf_tls13_enable_signal_new_session_tickets' [-Werror=implicit-function-declaration]
   mbedtls_ssl_conf_tls13_enable_signal_new_session_tickets(&backend->config,
   ^
curl-8.18.0/lib/vtls/mbedtls.c:809:3: warning: nested extern declaration of 'mbedtls_ssl_conf_tls13_enable_signal_new_session_tickets' [-Wnested-externs]
```

Protect this call inside the `#ifdef` block by making sure that support
for TLS 1.3 is defined.

Closes #20789
2026-03-03 00:28:35 +01:00
Viktor Szakats
d557c06b52
build: drop unused snprintf() feature check on Windows
Follow-up to 64f28b8f88 #20765

Closes #20790
2026-03-02 22:40:29 +01:00
Viktor Szakats
30ec220a68
mprintf: silence clang-tidy readability-suspicious-call-argument
Follow-up to 64f28b8f88 #20765

Closes #20791
2026-03-02 22:21:21 +01:00
Viktor Szakats
64f28b8f88
curlx: add local snprintf() helper that always nul-terminates (Windows)
Make the helper use `vsnprintf()` internally on all supported Windows
toolchains (dropping `_snprintf()` and `snprintf()`), ensure to
nul-terminate. Omit the return value to avoid complexity.

Use the helper from `mprintf.c` / `out_double()`, from tests/server code
and the tests/server-specific build of `curlx_inet_ntop()`,
`curlx_strerror()` functions. In the single call (in tests) where the
returned length was used previously, determine it with `strlen()`.

Refs:
https://github.com/libssh2/libssh2/blob/libssh2-1.11.1/src/misc.c#L57-L79
https://learn.microsoft.com/cpp/c-runtime-library/reference/snprintf-snprintf-snprintf-l-snwprintf-snwprintf-l
https://learn.microsoft.com/cpp/c-runtime-library/reference/vsnprintf-vsnprintf-vsnprintf-l-vsnwprintf-vsnwprintf-l

Assisted-by: Jay Satiro
Follow-up to fa8bd1cc09 #20761
Follow-up to 8ab468c8aa #15997

Closes #20765
2026-03-02 21:30:36 +01:00
Viktor Szakats
b83ade783d
multi: fix unreachable code compiler warning
```
lib/multi.c:305:5: error: code will never be executed [clang-diagnostic-unreachable-code]
  305 |     goto error;
      |     ^~~~~~~~~~
```

Cherry-picked from #20774

Closes #20788
2026-03-02 16:01:21 +01:00
Viktor Szakats
a5c6a4067a
clang-tidy: fix readability-suspicious-call-argument
Also:
- curlx/strerr: avoid a false positive by dropping an interim variable.
- enable this check.

Ref: #20627 (initial attempt)

Closes #20777
2026-03-02 15:28:25 +01:00
Viktor Szakats
fcde8d7e37
cmake: minor improvements to integration test framework
- add support for separate provider / consumer cmake options in
  `find_package` tests. To help test more integration scenarios.
  Refs: #20784 #20729 #20764

- dump generated curl config files in `find_package` tests.
  (cmake CONFIG source, `libcurl.pc`, `curl-config`.

- test.sh: use `sha256sum` (was: `openssl`).

Closes #20773
2026-03-02 14:50:33 +01:00
Viktor Szakats
7a77884a66
clang-tidy: enable clang-analyzer-* checks explicitly, fix fallout
v22.1.0 disabled them by default.

Fix fallout:
- http: check NULL to silence false positives in `HD_VAL()`.

Ref: https://releases.llvm.org/22.1.0/tools/clang/tools/extra/docs/ReleaseNotes.html#improvements-to-clang-tidy

Follow-up to da6fbb12a6 #20779
Follow-up to ce4db9c2ef #20751

Closes #20778
2026-03-02 14:01:09 +01:00
Viktor Szakats
da6fbb12a6
http1: fix potential NULL dereference in Curl_h1_req_parse_read()
Reported by clang-tidy v22 with `clang-analyzer-*` explicitly enabled:

```
lib/http1.c:89:31: error: Subtraction of a non-null pointer
 (from variable 'line_end') and a null pointer (via field 'line')
 results in undefined behavior [clang-analyzer-core.NullPointerArithm]
   89 |   parser->line_len = line_end - parser->line + 1;
      |                               ^
```
Ref: https://github.com/curl/curl/actions/runs/22534731241/job/65279952830?pr=20778#step:11:85

Ref: #20778

Closes #20779
2026-03-02 13:45:14 +01:00
Daniel Stenberg
7fe5b933d8
TODO: drop the alt-svc fallback
Let's return to this subject if someone actually needs this for their
specific use case.

See #17152
Closes #20786
2026-03-02 09:18:07 +01:00
Daniel Stenberg
d680789069
test1637: verify --fail and --retry with 502 response code
It should exit with 22 after the second retry.

Ref: #20771
Cloes #20780
2026-03-01 22:43:21 +01:00
Daniel Stenberg
99bd5ed97b
HISTORY: mention that Rafael passed away much too early
Closes #20781
2026-03-01 22:42:13 +01:00
dependabot[bot]
4427e6152a
GHA: bump actions and pip dependencies
- update action `actions/cache` from 5.0.1 to 5.0.3
- update action `github/codeql-action` from 4.31.9 to 4.32.4
- update pip `filelock` from 3.20.3 to 3.24.3
- update pip `ruff` from 0.14.14 to 0.15.2

Closes #20782
Closes #20783
2026-03-01 19:06:39 +01:00
Viktor Szakats
1b35c9e1e3
cmake: rename testbins target to tt, restore internal option
To make it easy to type. The internal option is used in CI.

Follow-up to aae361242f #20708

Closes #20768
2026-03-01 00:24:47 +01:00
Viktor Szakats
7a80082471
GHA/windows: bump clang-tidy job to clang v20 (from v18)
Adds 50 seconds to the 5m long build step. Also more prerequisites to
install, with no apparent effect on step time.

Follow-up to 9b52d516bb #20732

Closes #20775
2026-03-01 00:24:47 +01:00
Viktor Szakats
35bbb2e830
clang-tidy: fix issues found with build-fuzzing
- curl_sha512_256: add missing, drop redundant, parentheses.
- doh: drop redundant returns.
- url: add missing parentheses.
- vtls: fix unused const variables.
- tests/unit: fix missing header with clang-tidy and !threaded-resolver.
  Follow-up to 57ff2d6c91 #20106

Closes #20774
2026-03-01 00:04:18 +01:00
Viktor Szakats
bcc8144b89
clang-tidy: silence more minor issues found by v22
Also one found manually in lib/curl_sha512_256.c.

Follow-up to 7a08c5d820 #20762

Closes #20770
2026-02-28 13:16:54 +01:00
Florian Imdahl
006f561f6e
docs: some nitpicks
- replaced double spaces with single space where applicable
- replaced "favourite" with "favorite"
- added language identifiers to code blocks in markdown files
- added extra line after code blocks and after headings in markdown
  files

Cloes #20748
2026-02-27 23:05:37 +01:00
Daniel Stenberg
aea5552a64
INSTALL.md: fix typo
Reported-by: Nathan-M-code on github
Fixes #20766
Closes #20767
2026-02-27 22:52:03 +01:00
Viktor Szakats
92f66f0234
appveyor: minor improvements [ci skip]
- make per-job cmake options override default ones (as in GHA)
- also upload `.lib` artifacts (in commented code)

Cherry-picked from #20750
2026-02-27 16:04:21 +01:00
Viktor Szakats
7a08c5d820
ldap: silence clang-tidy v22 warning
Closes #20762
2026-02-27 15:57:48 +01:00
Viktor Szakats
fa8bd1cc09
mprintf: use _snprintf() when compiled with VS2013 and older
To support floats and doubles when using these old compilers.

Before this patch, these tests most likely failed with them:
```
FAIL 557: 'curl_mprintf() testing' printf, unittest
FAIL 566: 'HTTP GET with CURLINFO_CONTENT_LENGTH_DOWNLOAD and 0 bytes transfer' HTTP, HTTP GET
FAIL 599: 'HTTP GET with progress callback and redirects changing content sizes' HTTP, HTTP POST, chunked Transfer-Encoding
FAIL 1148: 'progress-bar' HTTP, progressbar
```

Also:
- mention `_snprintf()` in the `_CRT_SECURE_NO_WARNINGS` comment.

Follow-up to 7de35515d9 #20218

Closes #20761
2026-02-27 15:57:48 +01:00
Viktor Szakats
00b215b894
cmake: convert curl_add_clang_tidy_test_target() macro to function
I thought a macro is necessary to have `get_directory_property()` and
`CMAKE_CURRENT_SOURCE_DIR` work on the correct directory, but it turns
out they do work the same when used in a function.

Closes #20760
2026-02-27 14:09:22 +01:00
Viktor Szakats
9d727e4e55
cmake: replace list(FIND) with if(var IN_LIST list)
Available since CMake v3.3.

Ref: https://cmake.org/cmake/help/latest/command/if.html#in-list

Closes #20758
2026-02-27 14:08:59 +01:00
Viktor Szakats
ce4db9c2ef
GHA/linux: replace scan-build with clang-tidy
`scan-build` is a (Perl) wrapper around clang's built-in `--analyze`
option. Which look similar or identical to clang-tidy checkers under
the `clang-analyzer-*` namespace:
https://clang.llvm.org/docs/ClangStaticAnalyzer.html

Unless somebody has other information, it appears redundant to run
scan-build in parallel with clang-tidy in CI, now that the latter is
working reliably and with good performance for all curl components.

Another scan-build issue is the lack of a markup to suppress false
positives. It ignores `NOLINT`, yet finds the same false positives as
clang-tidy. This happens with scan-build v20+. v18 is silent, but it's
a blocker to upgrade to a newer version.

scan-build may still be a useful when combined with autotools, where
clang-tidy support is incomplete, slow (no parallelism), and uses
a distinct make target, which does not build binaries in the same pass.
But, scan-build also lacks extra checkers that are now enabled for
clang-tidy.

The clang-tidy job is also 30-40s faster than the one it replaced.

Also:
- drop scan-build job configured the same way as a clang-tidy one.
  CI time saved: 6m30s
- bump to clang-20 (from 18) in the replacement job.
- build tests in the replacement job.
  To verify a cmake command-line reconstruction issue only hit in this
  job in CI.
  CI time cost: 1m40s
- replacement job caught a minor, new, issue.
  Ref: b2076d3c2f #20752
- drop unused scan-build logic.

Bug: https://github.com/curl/curl/pull/20732#issuecomment-3963873838
Ref: https://github.com/curl/curl/pull/20732#issuecomment-3967479228

Closes #20751
2026-02-27 14:08:59 +01:00
Viktor Szakats
d9386a2f8e
cmake: fix system include directory position for clang-tidy in tests
To avoid a system include masking a custom directory, and e.g. picking
up system OpenSSL headers from `/usr/include` on Linux, instead of the
correct ones from a custom header directory, move system include
directories to the back of the header path list. Also to match what
CMake seems to be doing for the C compiler command-lines it generates.

CMake seems to use `-I`, while for these invocations we stick with
`-isystem` just in case.

This area remains fragile and likely not the final issue.

Fixing (seen in GHA/linux H3 c-ares):
```
Error while processing bld/tests/libtest/lib1521.c.
/usr/include/openssl/macros.h:147:4: error: "OPENSSL_API_COMPAT expresses an impossible API compatibility level" [clang-diagnostic-error]
Found compiler error(s).
  147 | #  error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"
      |    ^
FAILED: [code=1] tests/libtest/CMakeFiles/libtests-clang-tidy
```
Ref: https://github.com/curl/curl/actions/runs/22468472670/job/65079885471?pr=20751

Bug: https://github.com/curl/curl/pull/20751#issuecomment-3970180687
Cherry-picked from #20751

Closes #20759
2026-02-27 13:40:30 +01:00
Daniel Stenberg
a67ee591e0
RELEASE-NOTES: synced 2026-02-27 09:37:29 +01:00
Daniel Stenberg
61bcd1105a
cfilter: move a debug-only check into ifdef DEBUGBUILD
Pointed out by CodeSonar

Closes #20756
2026-02-27 08:21:15 +01:00
Daniel Stenberg
b48d02179a
ftp: remove two redundant assignments
Follow-up to 29bca12978

Pointed out by CodeSonar

Closes #20755
2026-02-27 08:10:11 +01:00
Viktor Szakats
b2076d3c2f
vquic: fix unused variable warning reported by clang-tidy
Silencing (seen in new GHA/Linux H3 v20 job):
```
lib/vquic/vquic.c:398:37: error: variable 'calls' set but not used [clang-diagnostic-unused-but-set-variable]
  398 |   size_t total_nread = 0, pkts = 0, calls = 0;
      |                                     ^
```

Cherry-picked from #20751

Closes #20752
2026-02-27 02:40:31 +01:00