Enable more picky compiler warnings. I've found these options in the
nghttp3 project when implementing the CMake quick picky warning
functionality for it.
Fix issues found along the way:
- wincng, mbedtls: delete duplicate function declarations.
Most of this was due to re-#defining crypto functions to
crypto-backend specific implementations These redefines also remapped
the declarations in `crypto.h`, making the backend-specific
declarations duplicates.
This patch deletes the backend-specific declarations.
- wincng mapped two crypto functions to the same local function.
Also causing double declarations.
Fix this by adding two disctinct wrappers and moving
the common function to a static one.
- delete unreachable `break;` statements.
- kex: disable macros when unused.
- agent: disable unused constants.
- mbedtls: disable double declaration warnings because public mbedTLS
headers trigger it. (with function `psa_set_key_domain_parameters`)
- crypto.h: formatting.
Ref: a70edb08e9/cmake/PickyWarningsC.cmakeCloses#1224
- sync clang warning version limits with CMake.
- make `WARN=` vs. `CURL_ADD_COMPILER_WARNINGS()` consistent with curl
and between clang and gcc (`WARN=` is for `no-` options in general).
Closes#1221
- cmake, autotools: sync picky gcc warnings with curl.
- cmake, autotools: add `-Wold-style-definition` for clang too.
- cmake, autotools: add comment for `-Wformat-truncation=1`.
- cmake: more precise version info for old clang options.
Closes#1219
We haven't been using the FreeBSD version. Also it turns out,
the single version supported is 13.2 at the moment:
https://github.com/vmactions/freebsd-vm/tree/main/conf
Stop trying to set the version and instead rely on the action
providing the latest supported one automatically.
Follow-up to a7d2a573be
Also:
- add more details to the FreeBSD job description.
- bump mbedtls version while here.
Closes#1217
Also extend our integration test double inclusion. It will still not
catch this case, because that requires
`cmake_minimum_required(VERSION 3.18)` or higher.
Fixes:
```
CMake Error at .../lib/cmake/libssh2/libssh2-config.cmake:8 (add_library):
add_library cannot create ALIAS target "libssh2::libssh2" because another
target with the same name already exists.
Call Stack (most recent call first):
CMakeLists.txt:24 (find_package)
CMake Error at .../lib/cmake/libssh2/libssh2-config.cmake:13 (add_library):
add_library cannot create ALIAS target "Libssh2::libssh2" because another
target with the same name already exists.
Call Stack (most recent call first):
CMakeLists.txt:24 (find_package)
```
Test to reproduce:
```cmake
cmake_minimum_required(VERSION 3.18) # must be 3.18 or higher
project(test)
find_package(libssh2 CONFIG)
find_package(libssh2 CONFIG) # fails
add_executable(test main.c)
target_link_libraries(test libssh2::libssh2)
```
Ref: https://cmake.org/cmake/help/latest/release/3.18.html#other-changes
Ref: https://cmake.org/cmake/help/v3.18/policy/CMP0107.html
Assisted-by: Kai Pastor
Assisted-by: Harry Mallon
Ref: https://github.com/curl/curl/pull/11913Closes#1216
```
PendingDeprecationWarning:
Copyright and licensing information for 'tests/openssh_server/Dockerfile'
has been found in both 'tests/openssh_server/Dockerfile' and in the DEP5
file located at '.reuse/dep5'. The information for these two sources has
been aggregated. In the future this behaviour will change, and you will
need to explicitly enable aggregation. [...]
```
Ref: https://github.com/libssh2/libssh2/actions/runs/6789274955/job/18456085964#step:4:4
We recommend using CMake instead. Especially in unity mode, it's faster
and probably more familiar for most. It's also easily portable.
(`Makefile.mk` was also portable, but in practice only usable for
Windows. Other platforms required a manual config header.)
Also:
- migrate `LIBSSH2_NO_*` option CI tests to CMake.
- make MSYS2 CMake builds verbose to show compilation options.
Closes#1204
- os400: delete unused `HAVE_STDINT_H`.
- fuzz: delete redundant `stdint.h` use.
`inttypes.h` is already included via `testinput.h`.
- docs/TODO: adjust type in planned function.
Closes#1212
- `- ` -> `- `
- `. ` -> `. `
- `\- ` -> `- `
- `-1` -> `\-1`
- fold long lines along the way
This makes the minus sign come out as a Unicode minus sign
(0x2212), and title separator dashes as Unicode hyphen (0x2010),
with `groff -Tutf8` v1.23.0.
Ref: https://lwn.net/Articles/947941/Closes#1210
Seen with gcc 12.
Manual: https://www.openssl.org/docs/man3.1/man3/BIO_reset.html
```
./quictls/linux-a64-musl/usr/include/openssl/bio.h:555:34: warning: value computed is not used [-Wunused-value]
555 | # define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libssh2/src/openssl.c:3518:5: note: in expansion of macro 'BIO_reset'
./libssh2/src/openssl.c:3884:5: note: in expansion of macro 'BIO_reset'
./libssh2/src/openssl.c:3995:5: note: in expansion of macro 'BIO_reset'
```
Ref: https://github.com/curl/curl-for-win/actions/runs/6696392318/job/18194032712#step:3:5060Closes#1205
Instead of `WIN32`.
The compiler defines `_WIN32`. 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.
Minor downside is that CMake uses `WIN32` and we also adopted it in
`Makefile.mk`.
In public libssh2 headers we stick with accepting either `_WIN32` or
`WIN32` and define our own namespaced `LIBSSH2_WIN32` based on them.
grepping for `WIN32` remains useful to detect Windows-specific code.
Closes#1195
- lowercase, underscored local variables.
- fix `find_library()` to use the multiple names passed.
- rely more on `find_package_handle_standard_args()`.
Logic based on our `Findwolfssl.cmake`.
- delete ignored/unused `MBEDTLS_LIBRARY_DIR`.
- revert CI configuration to use `MBEDCRTYPO_LIBRARY`.
- clarify inputs/outputs in comment header.
- use variable for regex.
- formatting.
Follow-up to 4159467507#1192Closes#1196
- libssh2 needs the crypto lib only, stop dealing with the rest.
- simplify logic.
- drop hard-wired toolchain specific options that broke with e.g. MSVC.
Reported by: AR Visions
Fixes#1191
- add mbedTLS version detection for recent releases.
- merge custom detection results display into a single line.
- shorten mbedTLS configuration in macOS CI job.
Used the curl mbedTLS detection logic for ideas:
a8c773845f/CMake/FindMbedTLS.cmakeCloses#1192
- Fix explicitly selecting WinCNG in autotools cross-builds by moving
`windows.h` header check before the WinCNG availability check.
Follow-up to d43b8d9b0b
Reported-by: Jack L
Fixes#1186
- Add Linux -> mingw-w64 cross-builds for autotools and CMake. This
doesn't detect #1186, because that happened when explicitly specifying
WinCNG via `--with-crypto=wincng`, but not when falling back to WinCNG
by default.
- autotools: fix to strip suffix from gcc version
Before this patch we expected `n.n` `-dumpversion` output, but Ubuntu
may return `n-win32` (also with `-dumpfullversion`). Causing these
errors and failing to enable picky warnings:
```
../configure: line 23845: test: : integer expression expected
```
Ref: https://github.com/libssh2/libssh2/actions/runs/6263453828/job/17007893718#step:5:143
Fix that by stripping any dash-suffix.
gcc version detection is still half broken because we translate '10'
to '10.10' because `cut -d. -f2` returns the first word if the
delimiter missing.
More possible `-dumpversion` output: `10-posix`, `10-win32`,
`9.3-posix`, `9.3-win32`, `6`, `9.3.0`, `11`, `11.2`, `11.2.0`
Ref: https://github.com/mamedev/mame/pull/9767Closes#1187
* Properly bounds check packet_authagent_open
* packet.c: use strlen instead of sizeof for strings
* Make LIBSSH_CHANNEL's channel_type_len a size_t
* packet_authagent_open: use size_t for offset
Credit:
Michael Buckley, signed off by Will Cosgrove
Before this patch, this happened at runtime when using an old (pre-3.0),
FIPS-enabled OpenSSL backend.
This patch makes it possible to disable this via the build-time option
`LIBSSH2_NO_MD5_PEM`.
Also:
- make sure to exclude all MD5 internal APIs when both the above and
`LIBSSH2_NO_MD5` are enabled.
- fix tests to support build with`LIBSSH2_NO_MD5`, `LIBSSH2_NO_MD5_PEM`
and `LIBSSH2_NO_3DES`.
- add FIXME to apply this change to `os400qc3.*`.
Old-style encrypted private keys require MD5 and they look like this:
```
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,<MD5-hex>
<base64>
-----END RSA PRIVATE KEY-----
```
E.g.: `tests/key_rsa_encrypted`
Ref: https://github.com/libssh2/www/issues/20Closes#1181
Use `IN LISTS` and `IN ITEMS`. This appears to be the preferred way
within CMake's own source code and possibly improves readability.
Fixup a side-effect of `IN LISTS`, where it retains empty values at
the end of the list, as opposed to the syntax used before, which
dropped it. In our case this happened with lines read from a text
file via `file(READ)`.
https://cmake.org/cmake/help/v3.7/command/foreach.htmlCloses#1180
- Dockerfile: use standard sep with `sed`
- Dockerfile: use single quotes in shell command
- appveyor.yml: use long-form option with `choco`
- tests/cmake: add language to test project
- reuse.yml: fix indentation
```
$ yamllint reuse.yml
reuse.yml
[...]
11:5 error wrong indentation: expected 6 but found 4 (indentation)
15:5 error wrong indentation: expected 6 but found 4 (indentation)
[...]
27:5 error wrong indentation: expected 6 but found 4 (indentation)
```
Cherry-picked from #1175
Add internal libssh2 library aliases to make these available for
downstream/dependent projects building libssh2 via `add_subdirectory()`:
- `libssh2:libssh2_static`
- `libssh2:libssh2_shared`
- `libssh2:libssh2` (shared, or static when not building shared)
- `libssh2` (shared, or static when not building shared)
Of these, `libssh2` was present in v1.10.0 and earlier releases, but
missing from v1.11.0.
Closes#1169
- quote text literals to improve readability.
(exceptions: `FILES` items, `add_subdirectory` names, `find_package`
names, literal target names, version numbers, 0/1, built-in CMake
values and CMake keywords, list items in `cmake/max_warnings.cmake`)
- quote standalone variables that could break syntax on empty values.
- replace `libssh2_SOURCE_DIR` with `PROJECT_SOURCE_DIR`.
- add missing mode to `message()` call.
- `TRUE`/`FALSE` → `ON`/`OFF`.
- add missing default value `OFF` to `option()` for clarity.
- unfold some lines.
- `INSTALL_CMAKE.md` fixes and updates. Show defaults.
Closes#1166
