1  #ifndef AI_ADDRCONFIG
       2  #define AI_ADDRCONFIG 0
       3  #endif /* AI_ADDRCONFIG */
       4  #ifndef AI_PASSIVE
       5  #define AI_PASSIVE 1
       6  #endif /* AI_PASSIVE */
       7  
       8  /* undef these, just in case, to avoid noisy warnings */
       9  #undef addrinfo
      10  #undef freeaddrinfo
      11  #undef getaddrinfo
      12  
      13  #define addrinfo xaddrinfo
      14  #define freeaddrinfo xfreeaddrinfo
      15  #define getaddrinfo xgetaddrinfo
      16  
      17  struct addrinfo
      18  {
      19  	int ai_flags;
      20  	int ai_socktype;
      21  	int ai_family;
      22  	int ai_protocol;
      23  	socklen_t ai_addrlen;
      24  	struct sockaddr * ai_addr;
      25  	struct xaddrinfo * ai_next;
      26  };
      27  
      28  void freeaddrinfo(struct xaddrinfo * res);
      29  
      30  int getaddrinfo(const char * hostname, const char * portname,
      31  	struct xaddrinfo * hints, struct xaddrinfo ** res);
      32  
      33  const char *gai_strerror(int errcode);