Replaced the deprecated gethostbyname with getaddrinfo (#47)

src/SFML/Network/IpAddress.cpp

@@ -28,6 +28,7 @@
 #include <SFML/Network/IpAddress.hpp>
 #include <SFML/Network/Http.hpp>
 #include <SFML/Network/SocketImpl.hpp>
+#include <cstring>
 
 
 namespace
@@ -48,9 +49,19 @@ namespace
                 return ip;
 
             // Not a valid address, try to convert it as a host name
-            hostent* host = gethostbyname(address.c_str());
+            addrinfo hints;
-            if (host)
+            std::memset(&hints, 0, sizeof(hints));
-                return reinterpret_cast<in_addr*>(host->h_addr)->s_addr;
+            hints.ai_family = AF_INET;
+            addrinfo* result = NULL;
+            if (getaddrinfo(address.c_str(), NULL, &hints, &result) == 0)
+            {
+                if (result)
+                {
+                    ip = reinterpret_cast<sockaddr_in*>(result->ai_addr)->sin_addr.s_addr;
+                    freeaddrinfo(result);
+                    return ip;
+                }
+            }
 
             // Not a valid address nor a host name
             return 0;

src/SFML/Network/Win32/SocketImpl.hpp

@@ -30,6 +30,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Network/Socket.hpp>
 #include <winsock2.h>
+#include <ws2tcpip.h>
 
 
 namespace sf