Use signature utils

src/utils/hook.cpp

@@ -4,6 +4,48 @@
 
 namespace utils::hook
 {
+	// open-iw5
+
+	void signature::process()
+	{
+		if (this->signatures_.empty()) return;
+
+		const auto start = static_cast<char*>(this->start_);
+
+		const unsigned int sig_count = this->signatures_.size();
+		const auto containers = this->signatures_.data();
+
+		for (size_t i = 0; i < this->length_; ++i)
+		{
+			const auto address = start + i;
+
+			for (unsigned int k = 0; k < sig_count; ++k)
+			{
+				const auto container = &containers[k];
+
+				unsigned int j;
+				for (j = 0; j < static_cast<unsigned int>(container->mask.size()); ++j)
+				{
+					if (container->mask[j] != '?' && container->signature[j] != address[j])
+					{
+						break;
+					}
+				}
+
+				if (j == container->mask.size())
+				{
+					container->callback(address);
+				}
+			}
+		}
+	}
+
+	void signature::add(const container& container)
+	{
+		signatures_.push_back(container);
+	}
+
+
 	namespace
 	{
 		[[maybe_unused]] class _

src/utils/hook.hpp

@@ -4,6 +4,37 @@
 
 namespace utils::hook
 {
+	class signature final
+	{
+	public:
+		struct container final
+		{
+			std::string signature;
+			std::string mask;
+			std::function<void(char*)> callback;
+		};
+
+		signature(void* start, const size_t length) : start_(start), length_(length)
+		{
+		}
+
+		signature(const DWORD start, const size_t length) : signature(reinterpret_cast<void*>(start), length)
+		{
+		}
+
+		signature() : signature(0x400000, 0x800000)
+		{
+		}
+
+		void process();
+		void add(const container& container);
+
+	private:
+		void* start_;
+		size_t length_;
+		std::vector<container> signatures_;
+	};
+
 	class detour
 	{
 	public: