From 0bbdacbfa3f2dd3d08b3437631f5967b34761c28 Mon Sep 17 00:00:00 2001
From: Yimura <24669514+Yimura@users.noreply.github.com>
Date: Fri, 9 Dec 2022 20:55:25 +0100
Subject: [PATCH] feat(Protections): Constraint attachment crash (#673)

---
 src/hooking.cpp                                      |  1 +
 src/hooking.hpp                                      |  1 +
 .../protections/constraint_attachment_crash.cpp      | 12 ++++++++++++
 src/pointers.cpp                                     |  5 +++++
 src/pointers.hpp                                     |  1 +
 5 files changed, 20 insertions(+)
 create mode 100644 src/hooks/protections/constraint_attachment_crash.cpp

diff --git a/src/hooking.cpp b/src/hooking.cpp
index fafaa11e..c4c918c7 100644
--- a/src/hooking.cpp
+++ b/src/hooking.cpp
@@ -64,6 +64,7 @@ namespace big
 		detour_hook_helper::add<hooks::format_metric_for_sending>("FMFS", g_pointers->m_format_metric_for_sending);
 
 		detour_hook_helper::add<hooks::invalid_mods_crash_detour>("IMCD", g_pointers->m_invalid_mods_crash_detour);
+		detour_hook_helper::add<hooks::constraint_attachment_crash>("CAC", g_pointers->m_constraint_attachment_crash);
 
 		detour_hook_helper::add<hooks::update_presence_attribute_int>("UPAI", g_pointers->m_update_presence_attribute_int);
 		detour_hook_helper::add<hooks::update_presence_attribute_string>("UPAS", g_pointers->m_update_presence_attribute_string);
diff --git a/src/hooking.hpp b/src/hooking.hpp
index 7bb8733c..47c1e63d 100644
--- a/src/hooking.hpp
+++ b/src/hooking.hpp
@@ -98,6 +98,7 @@ namespace big
 		static bool write_player_game_state_data_node(rage::netObject* player, CPlayerGameStateDataNode* node);
 
 		static void invalid_mods_crash_detour(int64_t a1, int64_t a2, int a3, char a4);
+		static std::int64_t constraint_attachment_crash(std::uintptr_t a1);
 
 		static bool update_presence_attribute_int(void* presence_data, int profile_index, char* attr, std::uint64_t value);
 		static bool update_presence_attribute_string(void* presence_data, int profile_index, char* attr, char* value);
diff --git a/src/hooks/protections/constraint_attachment_crash.cpp b/src/hooks/protections/constraint_attachment_crash.cpp
new file mode 100644
index 00000000..e9e7668f
--- /dev/null
+++ b/src/hooks/protections/constraint_attachment_crash.cpp
@@ -0,0 +1,12 @@
+#include "hooking.hpp"
+
+namespace big
+{
+    std::int64_t hooks::constraint_attachment_crash(std::uintptr_t a1)
+    {
+        if (!*reinterpret_cast<void**>(a1 + 0x38))
+            return 0;
+
+        return g_hooking->get_original<hooks::constraint_attachment_crash>()(a1);
+    }
+}
\ No newline at end of file
diff --git a/src/pointers.cpp b/src/pointers.cpp
index 1a4f2a45..c5c68eeb 100644
--- a/src/pointers.cpp
+++ b/src/pointers.cpp
@@ -665,6 +665,11 @@ namespace big
 			m_read_bitbuffer_gamer_handle = ptr.as<PVOID>();
 		});
 
+		main_batch.add("CAC", "40 53 48 83 EC 20 48 8B D9 48 8B 49 38 48 8B 01", [this](memory::handle ptr)
+		{
+			m_constraint_attachment_crash = ptr.as<PVOID>();
+		});
+
 		auto mem_region = memory::module("GTA5.exe");
 		main_batch.run(mem_region);
 
diff --git a/src/pointers.hpp b/src/pointers.hpp
index b8c27ac4..37190b0e 100644
--- a/src/pointers.hpp
+++ b/src/pointers.hpp
@@ -148,6 +148,7 @@ namespace big
 		const char* m_online_version;
 
 		PVOID m_invalid_mods_crash_detour{};
+		PVOID m_constraint_attachment_crash{};
 
 		int64_t** m_send_chat_ptr{};
 		functions::send_chat_message m_send_chat_message{};