Added new DNS::Resolve static method and organized it per OS.

include/ehs/io/socket/BaseDNS.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Socket.h"
+#include "ehs/Str.h"
+
+namespace ehs
+{
+	class BaseDNS
+	{
+	public:
+		static Str_8 Resolve(AddrType type, const Str_8 &hostname);
+
+		/// Resolves a hostname to an ip address.
+		/// @param [in] hostname The given hostname to resolve.
+		/// @returns The resulting ip address.
+		static Str_8 Resolve(const Str_8 &hostname);
+	};
+}

include/ehs/io/socket/BaseTCP.h

@@ -146,6 +146,10 @@ namespace ehs
 		/// @returns The result.
 		virtual bool IsBlocking() const = 0;
 
+		virtual void SetIPv6Only(bool value) = 0;
+
+		virtual bool IsIPv6Only() const = 0;
+
 		/// Retrieves whether or not this socket was initialized.
 		/// @returns The result.
 		virtual bool IsValid() const = 0;

include/ehs/io/socket/BaseUDP.h

@@ -69,6 +69,10 @@ namespace ehs
 		/// @returns The result.
 		virtual bool IsBlocking() const = 0;
 
+		virtual void SetIPv6Only(bool value) = 0;
+
+		virtual bool IsIPv6Only() const = 0;
+
 		/// Retrieves the bound ip version.
 		/// @returns The result.
 		AddrType GetLocalAddressType() const;

include/ehs/io/socket/DNS.h

@@ -1,17 +1,9 @@
 #pragma once
 
-#include "ehs/EHS.h"
-#include "ehs/Str.h"
-#include "Socket.h"
+#include "ehs/system/OS.h"
 
-namespace ehs
-{
-    class DNS
-    {
-    public:
-		/// Resolves a hostname to an ip address.
-		/// @param [in] hostname The given hostname to resolve.
-		/// @returns The resulting ip address.
-        static Str_8 Resolve(const Str_8& hostname);
-    };
-}
+#if defined(EHS_OS_WINDOWS)
+	#include "DNS_W32.h"
+#elif defined(EHS_OS_LINUX)
+	#include "DNS_LNX.h"
+#endif

include/ehs/io/socket/DNS_LNX.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include "BaseDNS.h"
+#include "ehs/EHS.h"
+#include "ehs/Str.h"
+#include "Socket.h"
+
+namespace ehs
+{
+    class DNS final : public BaseDNS
+    {
+    public:
+    	static Str_8 Resolve(AddrType type, const Str_8 &hostname);
+
+        static Str_8 Resolve(const Str_8 &hostname);
+    };
+}

include/ehs/io/socket/DNS_W32.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "BaseDNS.h"
+
+namespace ehs
+{
+	class DNS final : public BaseDNS
+	{
+	public:
+		static Str_8 Resolve(AddrType type, const Str_8 &hostname);
+
+		static Str_8 Resolve(const Str_8 &hostname);
+	};
+}

include/ehs/io/socket/TCP_BSD.h

@@ -80,6 +80,10 @@ namespace ehs
 		/// @returns The result.
 		bool IsBlocking() const override;
 
+		void SetIPv6Only(bool value) override;
+
+		bool IsIPv6Only() const override;
+
 		bool IsValid() const override;
 
 	private:

include/ehs/io/socket/TCP_W32.h

@@ -80,6 +80,10 @@ namespace ehs
 		/// @returns The result.
 		bool IsBlocking() const override;
 
+		void SetIPv6Only(bool value) override;
+
+		bool IsIPv6Only() const override;
+
 		bool IsValid() const override;
 
 	private:

include/ehs/io/socket/UDP_BSD.h

@@ -68,6 +68,10 @@ namespace ehs
 		/// @returns The result.
 		bool IsBlocking() const override;
 
+		void SetIPv6Only(bool value) override;
+
+		bool IsIPv6Only() const override;
+
 		bool IsValid() const override;
 
 	private:

include/ehs/io/socket/UDP_W32.h

@@ -68,6 +68,10 @@ namespace ehs
 		/// @returns The result.
 		bool IsBlocking() const override;
 
+		void SetIPv6Only(bool value) override;
+
+		bool IsIPv6Only() const override;
+
 		bool IsValid() const override;
 
 	private: