Squashed 'external/toxcore/c-toxcore/' changes from e2c01e457b..b03b571272

b03b571272 fix: flaky tcp test This only fixes the symptoms, not the real problem. Sometimes or consistently on some platforms a socket might need a moment before it can be written to.
32e67ab4c2 cleanup: use typedef for private message ID's in callback
7b1db6adc1 feat: add message IDs to private group messages
99e0bcc27d refactor: Observers/ignored peers can now send and receive custom packets
b3c3c49d26 fix: Disable IPv6 in Windows cross-compilation tests
e742deddff feat: Check hashes of Windows dependencies when cross-compiling
dfb9a0b02b fix: Test the current Windows Dockerfile, not an old Dockerhub image
14de93ccec chore: Use WineHQ's Wine as Debian Bookworm's crashes
ed37616249 docs: Update the Windows cross-compilation section
9bb79c174f cleanup: Remove a couple of unnecessary misc_tools dependencies
19475adb70 chore: Statically link OpenMP into the cracker fun util on Windows
1be311e51f feat: Build the fun utils when cross-compiling to Windows
88133f8446 chore: Strip Windows binaries
3cc0ae7535 refactor: Copy over all of the required static dependencies
c4fa8f7fb1 feat: Generate .def, .exp and .lib files when building for Windows
74bbac5363 feat: Let CMake create the dll instead of doing so ourselves
246642e9ae feat: Harden Windows cross-compilation
8d431c0d11 chore: Bump Windows build dependency versions
e519f7998b fix: Remove unnecessary wsock32 dependency on Windows
ed2b60c217 chore: Use a specific non-broken slimcc version.
d7f21010a1 chore: Update github actions.
e71a68b7f2 docs: Update the list of CMake options
77e08876ff chore: Remove mod and founder from group API naming scheme
12bc042767 docs: add the experimental api build option to INSTALL.md
e1fa5cae96 refactor: Rename Queries to Query to align with other enums.
be82a3ea30 fix: Correct type for conference offline peer numbers.
0627c36716 test: Add pkgsrc build.
92578afe4b test: Add FreeBSD VM action on GitHub.
52ece0f57b test: Build toxcore on NetBSD (VM).
3fe8ee2c11 chore: Only install tox_private.h on request.
9a8dfa06ab fix: save_compatibility_test failing on big-endian systems
86f5e55578 fix: Don't serve files from websockify.
710eb674a5 fix: Correctly pass extended public keys to group moderation code.
021db7031c refactor: Use `struct`s for extended public/secret keys.
a1e999fd80 chore: Compile libsodium reference implementation with compcert.
fbe3c19cf5 cleanup: correct a few nullable annotations
623e3ee5c3 cleanup: Don't use `memcpy` to cast arbitrary `struct`s to `uint8_t[]`.
c71567dc18 fix: Pass array, not array pointer, to `memcmp`.
9b46a08144 cleanup: Never pass `void*` directly to `memcpy`.
5d7b7a7bbc refactor: Use tox rng to seed the keypair generation.
961891d568 cleanup: Small improvements found by PVS Studio.
8201019f0d chore: Disable NGC saving by default, enable through Tox_Options.
5dd9ee3f65 cleanup: Replace pointer arithmetic with explicit `&arr[i]`.
ca4606d49d refactor: Use strong typedef for NGC peer id.
442213b722 cleanup: Simplify custom packet length check in NGC.
08d3393def fix: Correct a few potential null derefs in bootstrap daemon.
b9877b32b0 fix: Add missing memunlock of local variable when it goes out of scope.
dab5fe44b9 fix: Zero out stack-allocated secret key before return.
f058103299 refactor: Make prune_gc_sanctions_list more obviously correct.
3ba7a0dec9 docs: Add static analysis tool list to README.
8d0811a0f3 docs: Run prettier-markdown on markdown files.
969e3a2bfc refactor: Fix network test not using the strong typedef
93c83fbc7c refactor: Use strong typedef instead of struct for `Socket`.
9fe18b176f fix: Fix some false positive from PVS Studio.
7c44379ccb cleanup: Check that WINXP macro exists before comparing it.
5c93231bef refactor: Make tox mutex non-recursive.
aacff73939 docs: Fix up doxyfile.
d55fc85ff5 docs: Add more documentation to crypto_core.
5bdaaaedb6 refactor: Remove `Tox *` from `tox_dispatch`.
e202341e76 refactor: Don't rely on tox_dispatch passing tox in tests.
34df938f52 chore: Use C++ mode for clang-tidy.
8b05296a78 chore: Check that both gtest and gmock exist for tests.
42010660e1 test: Add slimcc compiler compatibility test.
b473630321 chore: Add some comments to the astyle config.
b7404f24f6 cleanup: Remove implicit bool conversions.
4e2dba4d9f chore: Reformat sources with astyle.
4359e3a6bc chore: Rename C++ headers to .hh suffixes.
0c05566e58 cleanup: Further `#include` cleanups.
8d29935b7a chore: Only check the bootstrap daemon checksum on release.
f70e588bc6 cleanup: Add more `const` where possible.
511bfe39c8 cleanup: Use Bazel modules to enforce proper `#include` hygiene.
1710a0d091 refactor: Move pack/unpack `IP_Port` from DHT into network module.
a975943564 chore: Really fix coverage docker image build.
c08409390f chore: Fix post-submit coverage image.
39aadf8922 fix: Don't use `memcmp` to compare `IP_Port`s.
d94246a906 fix: partially fix a bug that prevented group part messages from sending.
eeaa039222 chore: Fix rpm build; add a CI check for it.
8328449c1a chore: Speed up docker builds a bit by reducing layer count.
d6d67d56f3 cleanup: Add `const` where possible in auto tests.
6aa9e6850d cleanup: Minor cleanup of event unpack code.
bdf460a3a9 refactor: Rename `system_{memory,...}` to `os_{memory,...}`.
203e1af81e fix: a few off by one errors in group autotests
5c093c4888 cleanup: Remove all uses of `SIZEOF_VLA`.
662c2140f3 test: Add goblint static analyser.
8f07755834 cleanup: Use `memzero(x, s)` instead of `memset(x, 0, s)`.
a7258e40cf cleanup: Use explicit 0 instead of `PACKET_ID_PADDING`.
6370d0f15d cleanup: Expand the `Tox_Options` accessor macros.
14a1a0b9bd cleanup: Remove plan9 support.
a05dccad13 test: Add a simple new/delete test for Tox.
1cdcf938b9 cleanup: Add comment after every `#endif`.
ba99d4dc4b test: Fix comment I broke in the events test PR.
e07248debb refactor: Migrate auto_tests to new events API.
bdd42b5452 refactor: Add common msgpack array packer with callback.
3c659f5288 cleanup: Rename group to conference in groupav documentation.
89957be230 cleanup: Ensure handler params are named after callback params.
c650d9d345 refactor: Pass `this` pointer as first param to s11n callbacks.
e7fb91ddb8 refactor: Allow NULL pointers for byte arrays in events.
5e2c8cabc1 cleanup: make some improvements to group moderation test
259de4867e cleanup: Remove `bin_pack_{new,free}`.
21a8ff5895 cleanup: skip a do_gc iteration before removing peers marked for deletion
16809dc36e feat: Add dht_get_nodes_response event to the events system.

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: b03b5712720de9a9901ea12fd741f177327a7021

other/analysis/run-clang-tidy

@@ -3,17 +3,20 @@
 CHECKS="*"
 ERRORS="*"
 
+# Can't fix this, because winsock has different HANDLE type than posix.
+# Still good to occasionally look at.
+ERRORS="$ERRORS,-google-readability-casting"
+
 # Need to investigate or disable and document these.
 # =========================================================
 
 # TODO(iphydf): Fix these.
 ERRORS="$ERRORS,-cert-err34-c"
 ERRORS="$ERRORS,-readability-suspicious-call-argument"
+CHECKS="$CHECKS,-cppcoreguidelines-avoid-goto,-hicpp-avoid-goto"
+CHECKS="$CHECKS,-bugprone-incorrect-roundings"
 
-# TODO(iphydf): Fix once cimple 0.0.19 is released.
-CHECKS="$CHECKS,-google-readability-casting"
-
-# TODO(iphydf): Fix these.
+# TODO(iphydf): Fix this by making more functions set error code enums.
 CHECKS="$CHECKS,-bugprone-switch-missing-default-case"
 
 # TODO(iphydf): We might want some of these. For the ones we don't want, add a
@@ -30,17 +33,22 @@ CHECKS="$CHECKS,-misc-no-recursion"
 CHECKS="$CHECKS,-cppcoreguidelines-avoid-non-const-global-variables"
 
 # TODO(iphydf): Probably fix these.
-CHECKS="$CHECKS,-cert-err33-c"
-CHECKS="$CHECKS,-cppcoreguidelines-avoid-magic-numbers"
-CHECKS="$CHECKS,-readability-magic-numbers"
-
-# TODO(iphydf): We're using a lot of macros for constants. Should we convert
-# all of them to enum?
-CHECKS="$CHECKS,-modernize-macro-to-enum"
+CHECKS="$CHECKS,-cert-err33-c,-cppcoreguidelines-avoid-magic-numbers,-readability-magic-numbers"
 
 # Documented disabled checks. We don't want these for sure.
 # =========================================================
 
+# We want to decay many arrays to pointers. In C, we do that all the time.
+CHECKS="$CHECKS,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-hicpp-no-array-decay"
+
+# enum{} breaks comparisons and arithmetic in C++.
+CHECKS="$CHECKS,-modernize-macro-to-enum"
+
+# For most things, we do want this, but for some we want to ensure (with msan)
+# that struct members are actually initialised with useful non-zero values.
+# Initialising them by default takes away that validation.
+CHECKS="$CHECKS,-cppcoreguidelines-pro-type-member-init,-hicpp-member-init"
+
 # https://stackoverflow.com/questions/58672959/why-does-clang-tidy-say-vsnprintf-has-an-uninitialized-va-list-argument
 CHECKS="$CHECKS,-clang-analyzer-valist.Uninitialized"
 
@@ -115,8 +123,7 @@ CHECKS="$CHECKS,-readability-redundant-control-flow"
 #                                      ^
 # Trip the checker, which is true, because of integer promotion, but also not
 # very helpful as a diagnostic.
-CHECKS="$CHECKS,-bugprone-narrowing-conversions"
-CHECKS="$CHECKS,-cppcoreguidelines-narrowing-conversions"
+CHECKS="$CHECKS,-bugprone-narrowing-conversions,-cppcoreguidelines-narrowing-conversions"
 
 # Mistakenly thinks that
 #   const int a = 0, b = 1;
@@ -135,9 +142,51 @@ CHECKS="$CHECKS,-cppcoreguidelines-narrowing-conversions"
 # - Turning 'a' and 'b' into pre-processor macros is the only option left, but
 #   #defines and #undefs in the middle of a function hurt the readability and
 #   are less idiomatic than simply using 'const int'.
-CHECKS="$CHECKS,-cert-dcl03-c"
-CHECKS="$CHECKS,-hicpp-static-assert"
-CHECKS="$CHECKS,-misc-static-assert"
+CHECKS="$CHECKS,-cert-dcl03-c,-hicpp-static-assert,-misc-static-assert"
+
+# Doesn't consider use of preprocessor macros as needing a header, breaking
+# struct definitions that depend on size macros from e.g. crypto_core.h.
+CHECKS="$CHECKS,-misc-include-cleaner"
+
+# A bunch of checks only valid for C++, we turn off for C.
+# =========================================================
+
+# We don't use Google's int typedefs.
+CHECKS="$CHECKS,-google-runtime-int"
+# We write C code, so we use C arrays.
+CHECKS="$CHECKS,-cppcoreguidelines-avoid-c-arrays,-hicpp-avoid-c-arrays,-modernize-avoid-c-arrays"
+# C loops are ok. This one tells us to use range-for.
+CHECKS="$CHECKS,-modernize-loop-convert"
+# No auto in C.
+CHECKS="$CHECKS,-hicpp-use-auto,-modernize-use-auto"
+# Only C style casts in C.
+CHECKS="$CHECKS,-cppcoreguidelines-pro-type-cstyle-cast"
+# We use malloc (for now), and MISRA checks this too.
+CHECKS="$CHECKS,-cppcoreguidelines-no-malloc,-hicpp-no-malloc"
+# No owning_ptr<> in C.
+CHECKS="$CHECKS,-cppcoreguidelines-owning-memory"
+# void foo(void) is good in C.
+CHECKS="$CHECKS,-modernize-redundant-void-arg"
+# No using-typedefs in C.
+CHECKS="$CHECKS,-modernize-use-using"
+# No namespaces in C.
+CHECKS="$CHECKS,-misc-use-anonymous-namespace"
+# No trailing return type in C.
+CHECKS="$CHECKS,-modernize-use-trailing-return-type"
+# No <cstdint> and friends in C.
+CHECKS="$CHECKS,-hicpp-deprecated-headers,-modernize-deprecated-headers"
+# We use varargs for logging (we could reconsider, but right now we do).
+CHECKS="$CHECKS,-cppcoreguidelines-pro-type-vararg,-hicpp-vararg,-cert-dcl50-cpp"
+# We do want to use the array index operator, even when the index is non-constant.
+CHECKS="$CHECKS,-cppcoreguidelines-pro-bounds-constant-array-index"
+# We don't want to use pointer arithmetic, but this one includes array index
+# operators, which we do want to use.
+CHECKS="$CHECKS,-cppcoreguidelines-pro-bounds-pointer-arithmetic"
+# Can't use constexpr, yet. C will have it eventually, but it'll be years
+# until we can use it across all the compilers.
+CHECKS="$CHECKS,-cppcoreguidelines-macro-usage"
+# These are all very C++ and/or LLVM specific.
+CHECKS="$CHECKS,-llvmlibc-*"
 
 set -eux
 
@@ -154,7 +203,7 @@ copy_files() {
   find "${DIRS[@]}" \
     -maxdepth 1 -type d -exec mkdir -p "$1/{}" \;
   find "${DIRS[@]}" \
-    -maxdepth 1 -name "*.c" -exec cp "{}" "$1/{}" \;
+    -maxdepth 1 -name "*.[ch]" -exec cp "{}" "$1/{}" \;
 }
 
 run() {
@@ -166,7 +215,7 @@ run() {
   ls .clang-tidy
   copy_files a
   if ! find "${DIRS[@]}" \
-    -maxdepth 1 -name "*.c" -print0 \
+    -maxdepth 1 -name "*.[ch]" -print0 \
     | xargs -0 -n15 -P"$(nproc)" clang-tidy \
       -p="$PWD/_build" \
       --extra-arg=-DMIN_LOGGER_LEVEL=LOGGER_LEVEL_TRACE \
@@ -184,5 +233,6 @@ run() {
 }
 
 cmake . -B_build -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+sed -i -e 's/-std=c11/-xc++/' _build/compile_commands.json
 
 . other/analysis/variants.sh