Squashed 'external/toxcore/c-toxcore/' changes from 67badf694..82460b212

82460b212 feat: add ngc events
24b54722a fix: Ensure we have allocators available for the error paths.
48dbcfebc cleanup: Remove redundant `-DSODIUM_EXPORT` from definitions.
0cef46ee9 cleanup: Fix a few more clang-tidy warnings.
0c5b918e9 cleanup: Fix a few more clang-tidy warnings.
4d3c97f49 cleanup: Enforce stricter identifier naming using clang-tidy.
a549807df refactor: Add `mem` module to allow tests to override allocators.
6133fb153 chore: Add devcontainer setup for codespaces.
620e07ecd chore: Set a timeout for tests started using Conan
c0ec33b16 chore: Migrate Windows CI from Appveyor to Azure DevOps
8ed47f3ef fix incorrect documentation
a1e245841 docs: Fix doxygen config and remove some redundant comments.
b0f633185 chore: Fix the Android CI job
7469a529b fix: Add missing `#include <array>`.
2b1a6b0d2 add missing ngc constants getter declarations and definitions
2e02d5637 chore: Add missing module dependencies.
REVERT: 67badf694 feat: add ngc events

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 82460b2124216af1ac9d63060de310a682a2fd15

testing/fuzzing/fuzz_support.cc

@@ -62,6 +62,33 @@ static int recv_common(Fuzz_Data &input, uint8_t *buf, size_t buf_len)
     return res;
 }
 
+template <typename F>
+static void *alloc_common(Fuzz_Data &data, F func)
+{
+    CONSUME1_OR_RETURN_VAL(const uint8_t want_alloc, data, func());
+    if (!want_alloc) {
+        return nullptr;
+    }
+    return func();
+}
+
+static constexpr Memory_Funcs fuzz_memory_funcs = {
+    /* .malloc = */
+    ![](Fuzz_System *self, uint32_t size) {
+        return alloc_common(self->data, [=]() { return std::malloc(size); });
+    },
+    /* .calloc = */
+    ![](Fuzz_System *self, uint32_t nmemb, uint32_t size) {
+        return alloc_common(self->data, [=]() { return std::calloc(nmemb, size); });
+    },
+    /* .realloc = */
+    ![](Fuzz_System *self, void *ptr, uint32_t size) {
+        return alloc_common(self->data, [=]() { return std::realloc(ptr, size); });
+    },
+    /* .free = */
+    ![](Fuzz_System *self, void *ptr) { std::free(ptr); },
+};
+
 static constexpr Network_Funcs fuzz_network_funcs = {
     /* .close = */ ![](Fuzz_System *self, int sock) { return 0; },
     /* .accept = */ ![](Fuzz_System *self, int sock) { return 1337; },
@@ -149,6 +176,7 @@ static constexpr Random_Funcs fuzz_random_funcs = {
 Fuzz_System::Fuzz_System(Fuzz_Data &input)
     : System{
         std::make_unique<Tox_System>(),
+        std::make_unique<Memory>(Memory{&fuzz_memory_funcs, this}),
         std::make_unique<Network>(Network{&fuzz_network_funcs, this}),
         std::make_unique<Random>(Random{&fuzz_random_funcs, this}),
     }
@@ -156,10 +184,22 @@ Fuzz_System::Fuzz_System(Fuzz_Data &input)
 {
     sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
     sys->mono_time_user_data = this;
+    sys->mem = mem.get();
     sys->ns = ns.get();
     sys->rng = rng.get();
 }
 
+static constexpr Memory_Funcs null_memory_funcs = {
+    /* .malloc = */
+    ![](Null_System *self, uint32_t size) { return std::malloc(size); },
+    /* .calloc = */
+    ![](Null_System *self, uint32_t nmemb, uint32_t size) { return std::calloc(nmemb, size); },
+    /* .realloc = */
+    ![](Null_System *self, void *ptr, uint32_t size) { return std::realloc(ptr, size); },
+    /* .free = */
+    ![](Null_System *self, void *ptr) { std::free(ptr); },
+};
+
 static constexpr Network_Funcs null_network_funcs = {
     /* .close = */ ![](Null_System *self, int sock) { return 0; },
     /* .accept = */ ![](Null_System *self, int sock) { return 1337; },
@@ -224,12 +264,14 @@ static constexpr Random_Funcs null_random_funcs = {
 Null_System::Null_System()
     : System{
         std::make_unique<Tox_System>(),
+        std::make_unique<Memory>(Memory{&null_memory_funcs, this}),
         std::make_unique<Network>(Network{&null_network_funcs, this}),
         std::make_unique<Random>(Random{&null_random_funcs, this}),
     }
 {
     sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
     sys->mono_time_user_data = this;
+    sys->mem = mem.get();
     sys->ns = ns.get();
     sys->rng = rng.get();
 }
@@ -244,6 +286,8 @@ static uint16_t get_port(const Network_Addr *addr)
     }
 }
 
+static constexpr Memory_Funcs record_memory_funcs = null_memory_funcs;
+
 static constexpr Network_Funcs record_network_funcs = {
     /* .close = */ ![](Record_System *self, int sock) { return 0; },
     /* .accept = */ ![](Record_System *self, int sock) { return 2; },
@@ -348,6 +392,7 @@ static constexpr Random_Funcs record_random_funcs = {
 Record_System::Record_System(Global &global, uint64_t seed, const char *name)
     : System{
         std::make_unique<Tox_System>(),
+        std::make_unique<Memory>(Memory{&record_memory_funcs, this}),
         std::make_unique<Network>(Network{&record_network_funcs, this}),
         std::make_unique<Random>(Random{&record_random_funcs, this}),
     }
@@ -357,6 +402,7 @@ Record_System::Record_System(Global &global, uint64_t seed, const char *name)
 {
     sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
     sys->mono_time_user_data = this;
+    sys->mem = mem.get();
     sys->ns = ns.get();
     sys->rng = rng.get();
 }