Examples:
```
lib/vtls/openssl.c:2585:18: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
2585 | msg_type = *(const char *)buf;
lib/vtls/openssl.c:2593:18: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
2593 | msg_type = *(const char *)buf;
tests/server/mqttd.c:514:10: warning: comparison between 'signed char' and 'unsigned char' [bugprone-signed-char-misuse]
514 | if(passwd_flag == (char)(conn_flags & passwd_flag)) {
tests/server/tftpd.c:362:13: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
362 | c = test->rptr[0];
tests/server/tftpd.c:454:9: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
454 | c = *p++; /* pick up a character */
src/tool_urlglob.c:272:46: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
272 | pat->c.ascii.letter = pat->c.ascii.min = min_c;
src/tool_urlglob.c:273:24: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
273 | pat->c.ascii.max = max_c;
tests/libtest/cli_h2_pausing.c:164:23: warning: suspicious usage of 'sizeof()' on an expression of pointer type [bugprone-sizeof-expression]
164 | memset(&resolve, 0, sizeof(resolve));
tests/libtest/cli_upload_pausing.c:158:23: warning: suspicious usage of 'sizeof()' on an expression of pointer type [bugprone-sizeof-expression]
158 | memset(&resolve, 0, sizeof(resolve));
tests/libtest/first.c:86:15: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]
86 | coptopt = arg[optpos];
```
Also:
- tests/server/mqttd: drop a redundant and a wrongly signed cast.
Ref: https://clang.llvm.org/extra/clang-tidy/checks/bugprone/signed-char-misuse.htmlCloses#20654
- move macro to `curl_setup.h` (from curlx), and rename.
It's required by src, test servers, libtests. Also used by unit/tunit,
(which is fixable but this patch doesn't touch it.)
- special-case it for Windows/Cygwin/MS-DOS.
- build: drop `setmode()`/`_setmode()` detection.
This also avoids detecting the different `setmode()` on BSDs,
and a lot of complexity and overhead.
- use `CURL_O_BINARY`.
Follow-up to 250d613763#15787
Follow-up to 5e70566094#15169Closes#20539
Drop separate `TrackMemory` (aka `CURLDEBUG`) debug feature.
After recent changes (thread-safety,
193cb00ce9, and updates leading up to
it), `TrackMemory` is unlikely to cause build or runtime issues.
To simplify builds and debug options, enable `TrackMemory`
unconditionally for debug-enabled (aka `DEBUGBUILD`) builds. Before
this patch, this was already the default, with an option to disable
it, or enable it in non-debug-enabled builds.
Note, in practice these two debug options already went hand in hand. It
was not possible to toggle them separately for a long time due to bugs,
before 59dc9f7e69 (2024-05-28) fixed it.
This patch also removes/deprecates separate knobs and feature flags for
`TrackMemory`:
- autotools: `--enable-curldebug`/`--disable-curldebug`
- cmake: `-DENABLE_CURLDEBUG=ON`/`OFF`
- C macro: `CURLDEBUG`
- libcurl: `CURL_VERSION_CURLDEBUG` symbol deprecated in favor
of `CURL_VERSION_DEBUG`. They always return the same value after this
patch.
Also:
- drop `TrackMemory` from `curl -V` output.
- rename internal `CURLDEBUG` macro to `CURL_MEMDEBUG` internally.
To avoid confusion with `DEBUGBUILD`, but to keep guarding
`TrackMemory`-related internals for readability.
- runtests: bind `TrackMemory` to debug feature. Keep it a separate
test feature requirement, for clarity.
- CI: drop test builds for combinations of the two options.
- GHA/linux: no longer disable TrackMemory in the TSAN job.
Ref: https://github.com/curl/curl/pull/20328#issuecomment-3754528407Closes#20331
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#17827Closes#19626
There remain some false positives, hits in test data, and `dir` use,
around 100 issues in total.
There is no plan to enforce badwords on tests.
Also:
- badwords.txt: let a few `manpage[s]` occurrences through
(in Perl code).
Closes#19541
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
By making them defaults, then fixing and/or reshuffling remaining
exceptions as necessary.
- checksrc: ban by default: `snprintf`, `vsnprintf`, `sscanf`, `strtol`.
- examples: replace `strtol` with `atoi` to avoid a checksrc exception.
- tests/libtest: replace `strtol` with `atol`.
- tests/server: replace most `strtol` with `atol`.
- tests/server: replace most `strtoul` with `atol`/`atoi`.
- tests/server: drop no longer used `util_ultous`.
- fix typo in checksrc rules: `vsnprint` -> `vsnprintf`.
- update local exceptions.
Also:
- examples: ban curl printf functions. They're discouraged in user code.
- examples: replace curl printf with system printf.
Add `snprintf` workaround for <VS2015.
- examples/synctime: fix `-Wfloat-equal`.
- examples/synctime: exclude for non-Windows and non-UWP Windows.
- examples/synctime: build by default.
Closes#18823
libtests and clients were built the same way after recent overhauls.
libtests are used by runtests, clients by pytests.
Merge clients into libtests, aligning their entry function signature,
dropping common utility functions, and simplifying the build.
Note: After this patch `CURLDEBUG` applies to cli tests, when enabled.
Also:
- lib552: drop local copy-paste debug callback in favor of testtrace.
- lib552: drop local copy-paste dump function in favor of testtrace.
- clients: use `long` for HTTP version, drop casts.
- clients: replace local dump function in favor of testrace clone.
- sync cli test entry function prototype with libtests'.
- h2_serverpush: replace local trace callback with testtrace.
- de-duplicate 3 websocket close, ping, ping, functions. Kept the pong
iteration from `ws_pingpong`. Note: the pong clone in `lib2304` was
returning an error when `curl_ws_recv()` returned non-zero and
the payload matched the expected one anyway. After this patch, this
case returns success, as it does in `ws_pingpong`.
`lib2304` keeps passing, but I'm not sure if the previous behavior
was intentional.
- display full value in websocket close, ping, pong, drop casts.
Closes#18079
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-2991730158Closes#17703
Use it from libtests' `first.c` and thus also from units, and tunits.
Also:
- cmake: drop stray `curltool` lib dependency for units.
- units: stop depending on `src` headers.
- tests/server: drop depending on `src` headers.
(the remaining one listed in the comments, `tool_xattr.h`, was not
actually used from servers.)
- tests/server: drop duplicate curlx headers.
(Except `warnless.h`, which is tricky on Windows.)
Closes#17672
Make test bundles the default. Drop non-bundle build mode.
Also do all the optimizations and tidy-ups this allows, simpler builds,
less bundle exceptions, streamlined build mechanics.
Also rework the init/deinit macro magic for unit tests. The new method
allows using unique init/deinit function names, and calling them with
arguments. This is in turn makes it possible to reduce the use of global
variables.
Note this drop existing build options `-DCURL_TEST_BUNDLES=` from cmake
and `--enable-test-bundles` / `--disable-test-bundles` from autotools.
Also:
- rename test entry functions to have unique names: `test_<testname>`
This removes the last exception that was handled in the generator.
- fix `make dist` to not miss test sources with test bundles enabled.
- sync and merge `tests/mk-bundle.pl` into `scripts/mk-unity.pl`.
- mk-unity.pl: add `--embed` option and use it when `CURL_CLANG_TIDY=ON`
to ensure that `clang-tidy` does not miss external test C sources.
(because `clang-tidy` ignores code that's #included.)
- tests/unit: drop no-op setup/stop functions.
- tests: reduce symbol scopes, global macros, other fixes and tidy-ups.
- tool1621: fix to run, also fix it to pass.
- sockfilt: fix Windows compiler warning in certain unity include order,
by explicitly including `warnless.h`.
Follow-up to 6897aeb105#17468Closes#17590
Adjust the differences at runtime instead of build-time, to avoid
extra buillds.
Set the `CURL_TESTNUM` env variable to pass test numbers to tests.
Make libtest/first.c use that env variable to set the `testnum` global
variable to allow tests to differ based on which test that runs it.
Closes#17591
Move curlx_ functions into its own subdir.
The idea is to use the curlx_ prefix proper on these functions, and use
these same function names both in tool, lib and test suite source code.
Stop the previous special #define setup for curlx_ names.
The printf defines are now done for the library alone. Tests no longer
use the printf defines. The tool code sets its own defines. The printf
functions are not curlx, they are publicly available.
The strcase defines are not curlx_ functions and should not be used by
tool or server code.
dynbuf, warnless, base64, strparse, timeval, timediff are now proper
curlx functions.
When libcurl is built statically, the functions from the library can be
used as-is. The key is then that the functions must work as-is, without
having to be recompiled for use in tool/tests. This avoids symbol
collisions - when libcurl is built statically, we use those functions
directly when building the tool/tests. When libcurl is shared, we
build/link them separately for the tool/tests.
Assisted-by: Jay Satiro
Closes#17253
It causes problems in unity builds, in particular when this file is used
for unit tests.
Bonus: switch to plain getenv() instead of curl_getenv() to avoid extra
malloc/free rounds.
Closes#16978
Before this patch, standard `E*` errno codes were redefined on Windows,
onto matching winsock2 `WSA*` error codes, which have different values.
This broke uses where using the `E*` value in non-socket context, or
other places expecting a POSIX `errno`, e.g. file I/O, threads, IDN or
interfacing with dependencies.
Fix it by introducing a curl-specific `SOCKE*` set of macros that map to
`WSA*` on Windows and standard POSIX codes on other platforms. Then
verify and update the code to use `SOCKE*` or `E*` macro depending on
context.
- Add `SOCKE*` macros that map to either winsock2 or POSIX error codes.
And use them with `SOCKERRNO` or in contexts requiring
platform-dependent socket error codes.
This fixes `E*` uses which were supposed be POSIX values, not `WSA*`
socket errors, on Windows:
- lib/curl_multibyte.c
- lib/curl_threads.c
- lib/idn.c
- lib/vtls/gtls.c
- lib/vtls/rustls.c
- src/tool_cb_wrt.c
- src/tool_dirhie.c
- Ban `E*` codes having a `SOCKE*` mapping, via checksrc.
Authored-by: Daniel Stenberg
- Add exceptions for `E*` codes used in file I/O, or other contexts
requiring POSIX error codes.
Also:
- ftp: fix missing `SOCKEACCES` mapping for Windows.
- add `SOCKENOMEM` for `Curl_getaddrinfo()` via `asyn-thread.c`.
- tests/server/sockfilt: fix to set `SOCKERRNO` in local `select()`
override on Windows.
- lib/inet_ntop: fix to return `WSAEINVAL` on Windows, where `ENOSPC` is
used on other platforms. To simulate Windows' built-in `inet_ntop()`,
as tested on a Win10 machine.
Note:
- WINE returns `STATUS_INVALID_PARAMETER` = `0xC000000D`.
- Microsoft documentation says it returns `WSA_INVALID_PARAMETER`
(= `ERROR_INVALID_PARAMETER`) 87:
https://learn.microsoft.com/windows/win32/api/ws2tcpip/nf-ws2tcpip-inet_ntop#return-value
- lib/inet_ntop: drop redundant `CURL_SETERRNO(ENOSPC)`.
`inet_ntop4()` already sets it before returning `NULL`.
- replace stray `WSAEWOULDBLOCK` with `USE_WINSOCK` macro to detect
winsock2.
- move existing `SOCKE*` mappings from `tests/server` to
`curl_setup_once.h`.
- add missing `EINTR`, `EINVAL` constants for WinCE.
Follow-up to abf80aae38#16612
Follow-up to d69425ed7d#16615
Bug: https://github.com/curl/curl/pull/16553#issuecomment-2704679377Closes#16621
And use it from src and tests.
Syncing this functionality between platforms and build targets.
Also: Stop redefining `O_BINARY` in src, and use a local macro with
the same effect. `O_BINARY` is used in `CURL_SET_BINMODE()` to decide
if this functionality is supported, and redefining it makes this check
pass always in unity builds. The check is required for Apple OS, because
it offers a `setmode()` function, successfully detected by both CMake
and autotools, but that function has a different functionality and
signature than that expected by `CURL_SET_BINMODE()`.
Also:
- drop MetaWare High C (MS-DOS) support for set binmode.
- tests/libtest/Makefile.inc: dedupe comments.
- lib/curl_setup_once.h: tidy up feature guards for `io.h`, `fcntl.h`.
Ref: #15652Closes#15787
Before this patch, the result code was a mixture of `int` and
`CURLcode`.
Also adjust casts and fix a couple of minor issues found along the way.
Cherry-picked from #13489Closes#13600
- enable `-Wsign-conversion` warnings, but also setting them to not
raise errors.
- fix `-Warith-conversion` warnings seen in CI.
These are triggered by `-Wsign-converion` and causing errors unless
explicitly silenced. It makes more sense to fix them, there just a few
of them.
- fix some `-Wsign-conversion` warnings.
- hide `-Wsign-conversion` warnings with a `#pragma`.
- add macro `CURL_WARN_SIGN_CONVERSION` to unhide them on a per-build
basis.
- update a CI job to unhide them with the above macro:
https://github.com/curl/curl/actions/workflows/linux.yml -> OpenSSL -O3
Closes#12492
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
Values greater than 125 have special meanings, so cap it there. Unit
tests and lib tests use the number of failures as the return code, so a
large number of failures (such as test 2601 as a torture test) can
exceed this causing the test to be erroneously reported as having
failed.
Ref: #10720
The only difference used to be global variable used in unittest tests.
After cb7ed5a removed individual flag overrides for the unittests, first.c
was no longer recompiled for unit tests to include the flag, so whether it
worked or gave a link error depended on whether it was compiled in
libtest or unittest first. This way also speeds up the build by
eliminating 40 identical compile invocations.
Fixes#10749
- 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
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
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 #5888Closes#8595
On Windows data can be lost in buffers in case of abnormal program
termination, especially in process chains as seen due to flaky tests.
Therefore flushing all buffers manually should avoid this data loss.
In the curl tool we play the safe game by only flushing write buffers,
but in the testsuite where we manage all buffers, we flush everything.
This should drastically reduce Windows CI and testsuite flakiness.
Reviewed-by: Daniel Stenberg
Supersedes #7833 and #6064Closes#8516
We currently use both spellings the british "behaviour" and the american
"behavior". However "behavior" is more used in the project so I think
it's worth dropping the british name.
Closes#6395
