text: #ifndef WIN32_LEAN_AND_MEAN
  #define WIN32_LEAN_AND_MEAN
  #endif
  #undef  __CRT__NO_INLINE
  #define __CRT__NO_INLINE
  #include <winsock2.h>
  #include <ws2tcpip.h>
  
  int IN6_IS_ADDR_UNSPECIFIED(const struct in6_addr *a)
  {
  	return ((a->s6_words[0] == 0) &&
  		(a->s6_words[1] == 0) &&
  		(a->s6_words[2] == 0) &&
  		(a->s6_words[3] == 0) &&
  		(a->s6_words[4] == 0) &&
  		(a->s6_words[5] == 0) &&
  		(a->s6_words[6] == 0) &&
  		(a->s6_words[7] == 0));
  }
  