Windows's winsock2 returns socket errors via `WSAGetLastError()` and
not via `errno` like most systems out there. This was covered by
switching to the `SOCKERRNO` curl macro earlier. But, on Windows the
returned socket error codes have different values than the standard
POSIX errno values. Existing code was using the POSIX values for all
these checks. Meaning they never actually matched on Windows.
This patch defines a set of `SOCKERRNO` constants that map to the
correct socket error values for Windows and other platforms.
The reverse issue exists in core curl code, which redefines POSIX errno
values to winsock2 ones, breaking non-socket uses on Windows.
Cherry-picked from #15000
Follow-up to
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|---|---|---|
| .circleci | ||
| .github | ||
| CMake | ||
| docs | ||
| include | ||
| lib | ||
| LICENSES | ||
| m4 | ||
| packages | ||
| plan9 | ||
| projects | ||
| scripts | ||
| src | ||
| tests | ||
| winbuild | ||
| .dir-locals.el | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| acinclude.m4 | ||
| appveyor.sh | ||
| appveyor.yml | ||
| buildconf | ||
| CHANGES.md | ||
| CMakeLists.txt | ||
| configure.ac | ||
| COPYING | ||
| curl-config.in | ||
| Dockerfile | ||
| GIT-INFO.md | ||
| libcurl.pc.in | ||
| Makefile.am | ||
| README | ||
| README.md | ||
| RELEASE-NOTES | ||
| renovate.json | ||
| REUSE.toml | ||
| SECURITY.md | ||
curl is a command-line tool for transferring data specified with URL syntax. Learn how to use curl by reading the manpage or everything curl.
Find out how to install curl by reading the INSTALL document.
libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl manpage to learn how.
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