On Sat, Jun 18, 2005 at 09:26:58AM -0700, Jerome Pioux wrote:
> 
> > Build the attached programs, gethostbyname and gethostbyaddr.
> > ...
> > Make sure you get proper resolution with the address, the fqdn, and the 
> > shortname.
> 
> I don't see anything wong but maybe you can?
> 
> [reddog] (root) GetHost.d> ./gethostbyname reddog
> name reddog -> reddog.gpv.az05.bull.com
>                141.112.17.140 (addr)
> 
> [reddog] (root) GetHost.d> ./gethostbyname reddog.gpv.az05.bull.com
> name reddog.gpv.az05.bull.com -> reddog.gpv.az05.bull.com
>                                  141.112.17.140 (addr)
> 
> [reddog] (root) GetHost.d> ./gethostbyaddr 141.112.17.140
> addr 141.112.17.140 -> reddog.gpv.az05.bull.com
>                        141.112.17.140 (addr)

Yeah, the last two.

You seem to be able to go from reddog to the FQDN
but from neither the FQDN nor the addr to reddog.

An example:

  $ gethostbyname butch.jgcomp.com
  name butch.jgcomp.com -> butch.jgcomp.com
                           butch (alias)
                           jgcomp.com (alias)
                           loghost (alias)
                           205.166.177.60 (addr)

Note it is listing all the aliases.

Don't know why yours doesn't.  In the example above
the aliases are coming from my local hosts file.
But that doesn't have to be the case:

  $ gethostbyname mail.yahoo.com
  name mail.yahoo.com -> login.yahoo.akadns.net
                         mail.yahoo.com (alias)
                         login.yahoo.com (alias)
                         216.109.127.60 (addr)

HTH, maybe someone else has specific suggestions.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)