Reversed the logic for sockaddr_storage and made our own Curl_sockaddr_storage

struct instead to use.

lib/sockaddr.h

@@ -26,11 +26,13 @@
 #include "setup.h"
 
 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
-struct sockaddr_storage
-  {
-    char buffer[256];   /* this should be big enough to fit a lot */
-  };
+struct Curl_sockaddr_storage {
+  struct sockaddr_storage buffer;
+}
+#else
+struct Curl_sockaddr_storage {
+  char buffer[256];   /* this should be big enough to fit a lot */
+};
 #endif
 
-
 #endif /* __SOCKADDR_H */