🚀 go-pugleaf

In article <1jki9vINNmr9@aludra.usc.edu> smiller@aludra.usc.edu (Stephen B. Miller) writes:
>In article <1993Jan20.162611.25831@walter.bellcore.com> maritza@espresso.bae.bellcore.com (Maritza Ramirez) writes:
>>
>>
>>I am trying to look for a solution to the problem of determining an 
>>unknown remote port number. I will appreciate any comments on the 
>>following situation:
>>
>> [text deleted, see earlier posting]
>>
>>Maritza
>>
>
>I am beginning to work an identical problem here, but have not come up with
>much more than you.  I have considered trying the dynamic update features in
>the BIND 4.8.3 code, but they are so poorly documented that I might be better
>off writing my own application.  My situation is further complicated by then
>need to change the port number assignments dynamically, which might be done
>by deregistering and reregistering with the portmapper.  If anyone else has
>ideas please feel free.....
>
>Steve Miller - smiller@aludra.usc.edu
>
>

registerrpc will register a prog#/ver# with portmapper. Portmapper assigns the
port #.  svc_unregister() removes the entry.  pmap_getport() looks up a prog#/
version# on a host.  You must of course know the host name, prog# and version#
in advance.  Be careful about having the same prog# with different version #s.
Portmapper returns the port of a program with a match on prog #, but will give
you the latest (I believe) version # if it doesn't find an exact match.

Dig through the man pages, the info is skinny but most of it is there.  There is
also a book called "The Art of Distributed Application"  by John R. Corbin.
It is supposed to give lots of detail about Portmapper  It is part of the Sun
Tech Reference Library, published by Springer-Verlag.


Ron



-- 

>
Ron Feigen
ronf@panther.mot.com