curl-curl/CMake
Viktor Szakats 51d8213579
core: stop redefining E* macros on Windows, map EACCES, related fixes
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-2704679377

Closes #16621
2025-03-13 00:03:25 +01:00
..
cmake_uninstall.cmake.in cmake: more small tidy-ups and fixes 2024-08-08 13:48:28 +02:00
CMakeConfigurableFile.in copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
curl-config.cmake.in cmake: drop CURL_USE_PKGCONFIG from curl-config.cmake.in 2025-01-25 15:21:17 +01:00
CurlSymbolHiding.cmake build: add Windows CE / CeGCC support, with CI jobs 2025-02-21 13:56:34 +01:00
CurlTests.c core: stop redefining E* macros on Windows, map EACCES, related fixes 2025-03-13 00:03:25 +01:00
FindBearSSL.cmake cmake: document -D and env build options 2024-10-24 23:06:40 +02:00
FindBrotli.cmake build: cmake multi-pkg-config detection improvements (brotli, ldap, mbedtls) 2025-03-07 13:48:07 +01:00
FindCares.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindGSS.cmake cmake: drop redundant opening/closing .* from MATCH expressions 2024-12-20 11:38:59 +01:00
FindLDAP.cmake build: cmake multi-pkg-config detection improvements (brotli, ldap, mbedtls) 2025-03-07 13:48:07 +01:00
FindLibgsasl.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibidn2.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibpsl.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibrtmp.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibssh2.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibssh.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindLibuv.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindMbedTLS.cmake build: cmake multi-pkg-config detection improvements (brotli, ldap, mbedtls) 2025-03-07 13:48:07 +01:00
FindMSH3.cmake cmake: move pkg-config names to Find modules 2024-12-26 12:59:59 +01:00
FindNettle.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindNGHTTP2.cmake cmake: move pkg-config names to Find modules 2024-12-26 12:59:59 +01:00
FindNGHTTP3.cmake cmake: move pkg-config names to Find modules 2024-12-26 12:59:59 +01:00
FindNGTCP2.cmake cmake: move pkg-config names to Find modules 2024-12-26 12:59:59 +01:00
FindQuiche.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindRustls.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindWolfSSH.cmake cmake: clear package version after pkg-config detection 2024-10-25 15:04:35 +02:00
FindWolfSSL.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
FindZstd.cmake cmake/Find: set <Modulename>_FOUND for compatibility when found via pkg-config 2025-02-07 00:07:38 +01:00
Macros.cmake cmake: pre-fill known type sizes for Windows OSes 2025-02-25 16:57:13 +01:00
OtherTests.cmake build: fix compiler warnings in feature detections 2025-02-16 02:39:35 +01:00
PickyWarnings.cmake build: enable -Wcast-qual, fix or silence compiler warnings 2025-03-10 22:30:15 +01:00
unix-cache.cmake cmake: fix detection pre-fills for iOS 2025-03-06 14:01:28 +01:00
Utilities.cmake cmake: add integration tests, run them in CI 2025-02-07 00:15:48 +01:00
win32-cache.cmake windows: do not use winsock2 inet_ntop()/inet_pton() 2025-03-06 20:09:25 +01:00