feat(patches): add relaunch and com err stub

src/client/component/patches.cpp

@@ -0,0 +1,79 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "game/game.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/string.hpp>
+
+namespace patches
+{
+	namespace
+	{
+		std::string GetExecutableName()
+		{
+			char path[MAX_PATH];
+			if (GetModuleFileNameA(NULL, path, MAX_PATH) > 0)
+			{
+				std::string fullPath(path);
+				size_t pos = fullPath.find_last_of("\\/");
+				return (pos == std::string::npos) ? fullPath : fullPath.substr(pos + 1);
+			}
+			return "";
+		}
+
+		utils::hook::detour relaunch_hook;
+		void relaunch_stub(const char* filename, const char* params)
+		{
+			if (filename == "s2_sp64_ship.exe"s || filename == "s2_mp64_ship.exe"s)
+			{
+				static char buf[MAX_PATH];
+				memset(buf, 0, sizeof(buf));
+
+				auto exe_name = GetExecutableName();
+				assert(exe_name.size() < MAX_PATH);
+				memcpy(buf, exe_name.data(), exe_name.size());
+
+				filename = buf;
+
+				params = utils::string::va("%s -%s", params, game::environment::is_sp() ? "multiplayer" : "singleplayer");
+
+				relaunch_hook.invoke<void>(filename, params);
+				return;
+			}
+
+			relaunch_hook.invoke<void>(filename, params);
+		}
+
+		utils::hook::detour com_error_hook;
+		void com_error_stub(const int error, const char* msg, ...)
+		{
+			char buffer[2048]{};
+			va_list ap;
+
+			va_start(ap, msg);
+			vsnprintf_s(buffer, _TRUNCATE, msg, ap);
+			va_end(ap);
+
+			printf("Error: %s\n", buffer);
+
+			com_error_hook.invoke<void>(error, "%s", buffer);
+		}
+	}
+
+	class component final : public component_interface
+	{
+	public:
+		void post_load() override
+		{
+			relaunch_hook.create(SELECT_VALUE(0x1404B5170, 0x140715B10), relaunch_stub);
+		}
+
+		void post_unpack() override
+		{
+			com_error_hook.create(SELECT_VALUE(0x14043CA00, 0x140073AA0), com_error_stub);
+		}
+	};
+}
+
+REGISTER_COMPONENT(patches::component)