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curl/lib/vauth
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Viktor Szakats 3829759bd0
build: enable missing OpenSSF-recommended warnings, with fixes 
https://best.openssf.org/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C++.html
as of 2023-11-29 [1].

Enable new recommended warnings (except `-Wsign-conversion`):

- enable `-Wformat=2` for clang (in both cmake and autotools).
- add `CURL_PRINTF()` internal attribute and mark functions accepting
  printf arguments with it. This is a copy of existing
  `CURL_TEMP_PRINTF()` but using `__printf__` to make it compatible
  with redefinting the `printf` symbol:
  https://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_5.html#SEC94
- fix `CURL_PRINTF()` and existing `CURL_TEMP_PRINTF()` for
  mingw-w64 and enable it on this platform.
- enable `-Wimplicit-fallthrough`.
- enable `-Wtrampolines`.
- add `-Wsign-conversion` commented with a FIXME.
- cmake: enable `-pedantic-errors` the way we do it with autotools.
  Follow-up to d5c0351055 #2747
- lib/curl_trc.h: use `CURL_FORMAT()`, this also fixes it to enable format
  checks. Previously it was always disabled due to the internal `printf`
  macro.

Fix them:

- fix bug where an `set_ipv6_v6only()` call was missed in builds with
  `--disable-verbose` / `CURL_DISABLE_VERBOSE_STRINGS=ON`.
- add internal `FALLTHROUGH()` macro.
- replace obsolete fall-through comments with `FALLTHROUGH()`.
- fix fallthrough markups: Delete redundant ones (showing up as
  warnings in most cases). Add missing ones. Fix indentation.
- silence `-Wformat-nonliteral` warnings with llvm/clang.
- fix one `-Wformat-nonliteral` warning.
- fix new `-Wformat` and `-Wformat-security` warnings.
- fix `CURL_FORMAT_SOCKET_T` value for mingw-w64. Also move its
  definition to `lib/curl_setup.h` allowing use in `tests/server`.
- lib: fix two wrongly passed string arguments in log outputs.
  Co-authored-by: Jay Satiro
- fix new `-Wformat` warnings on mingw-w64.

[1] 56c0fde389/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md

Closes #12489
2023-12-16 13:12:37 +00:00
..
cleartext.c lib: enable hmac for digest as well 2023-09-20 13:38:42 +02:00
cram.c lib: add ability to disable auths individually 2023-09-07 17:45:06 +02:00
digest.c build: add more picky warnings and fix them 2023-11-21 16:35:42 +00:00
digest.h lib: add ability to disable auths individually 2023-09-07 17:45:06 +02:00
digest_sspi.c lib: fix variable undeclared error caused by infof changes 2023-12-06 23:01:54 +01:00
gsasl.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
krb5_gssapi.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
krb5_sspi.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
ntlm.c lib: strndup/memdup instead of malloc, memcpy and null-terminate 2023-12-07 08:47:44 +01:00
ntlm.h copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
ntlm_sspi.c build: enable missing OpenSSF-recommended warnings, with fixes 2023-12-16 13:12:37 +00:00
oauth2.c openldap: fix missing sasl symbols at build in specific configs 2023-02-09 08:17:20 +01:00
spnego_gssapi.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
spnego_sspi.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
vauth.c copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
vauth.h lib: add ability to disable auths individually 2023-09-07 17:45:06 +02:00