add necessary CMake files

socket.hpp

@@ -0,0 +1,83 @@
+#include <stdio.h>
+
+#include <WinSock2.h>
+#include <ws2tcpip.h>
+#include <iphlpapi.h>
+
+#include <memory>
+
+struct WSA {
+    WSADATA wsa;
+
+    explicit WSA(WORD version = MAKEWORD(2, 2));
+    ~WSA() noexcept;
+};
+
+struct AddrInfoPtr {
+    struct addrinfo *info;
+
+    AddrInfoPtr() noexcept;
+    ~AddrInfoPtr() noexcept;
+
+    addrinfo** operator&() noexcept;
+    addrinfo& operator*() noexcept;
+    addrinfo* operator->() noexcept;
+    const addrinfo& operator*() const noexcept;
+
+    operator addrinfo*() noexcept;
+};
+
+struct AddrInfo {
+    struct addrinfo info;
+
+    AddrInfo() noexcept;
+    ~AddrInfo() noexcept = default;
+
+    addrinfo* operator->() noexcept;
+    addrinfo* operator&() noexcept;
+
+    operator const addrinfo&() const noexcept;
+    operator addrinfo&() noexcept;
+
+    AddrInfoPtr get_addrinfo(PCSTR node, PCSTR service);
+};
+
+struct Socket {
+    enum AddrAction {
+        NO_ACTION,
+        CONNECT,
+        BIND,
+    };
+
+    SOCKET s;
+    struct sockaddr addr;
+
+    explicit Socket(SOCKET init = INVALID_SOCKET) noexcept;
+    ~Socket() noexcept;
+
+    operator SOCKET() const noexcept;
+
+    explicit operator bool() const noexcept;
+    bool is_valid() const noexcept;
+
+    void from_addrinfo(const struct addrinfo &info, AddrAction action = NO_ACTION);
+
+    Socket accept_client() const noexcept;
+
+    void stop_send() const;
+
+    int send_data(const Buffer &data) const;
+    int recv_data(Buffer &data) const;
+};
+
+struct Buffer {
+    std::unique_ptr<char[]> data;
+    int size;
+
+    Buffer(int len);
+
+    char* get();
+    const char* get() const;
+
+    int len() const;
+};