Differences between Berkley 4.2 and 4.3

[Rob Robertson]

In article <7422 at hubcap.clemson.edu> hubcap at hubcap.clemson.edu (Mike Marshall) writes:

   struct	hostent {
	   char	*h_name;	/* official name of host */
	   char	**h_aliases;	/* alias list */
	   int	h_addrtype;	/* host address type */
	   int	h_length;	/* length of address */
	   char	**h_addr_list;	/* list of addresses from name server */
   #define	h_addr	h_addr_list[0]	/* address, for backward compatiblity */
   };

   In the above structure h_addr_list is a 4.3ism. One of the things that can
   end up here is an ordered list of MX hosts. Back in the pre DNS days of 4.2
   all they did was look up an address in /etc/hosts and all that was needed
   was h_addr.

Egad!  No!  It has nothing to do with MX records, it's just the
realization that a single host can have multiple Internet addresses
(ie multi-homed).  

rob
--
			  william robertson
		       rob at violet.berkeley.edu

		 indecision is the key to flexiblity