Re: INET/CIDR types

The bad news is it doesn't work now...


ler=# select host(netblock::int8::inet) from networks;
ERROR:  Cannot cast type 'cidr' to 'int8'
ler=# \d networks           Table "networks"       Attribute   |     Type     | Modifier
---------------+--------------+----------       netblock      | cidr         |      router        | integer      |
interface     | varchar(64)  |        dest_ip       | inet         |         net_name      | varchar(64)  |
owner        | integer      |           origin        | varchar(256) |            assigned_date | date         |
    assigned_by   | varchar(64)  |          asn           | smallint     | 
 
         ler=# 

> On Mon, 24 Jul 2000, Larry Rosenman wrote:
> 
> > > This whole discussion is quite silly guys.
> > > 
> > > It is quite reasonable to have ability to split CIDR net into two pieces:
> > > the network and the bitshift. Second one is already possible, the first
> > > one can be accomplished by having functions to convert a cidr/inet to int8
> > > (not int4 because of sign thing), and back.
> > > 
> > > Its also very easy to implement ;)
> > > 
> > > This will actually come very useful for many applications. Something I'm
> > > working on now (allocation of 'most appropriate' block) requires ability
> > > to split a netblock into two, which could be most easily accomplished
> > > using int8 math. (net::int8+2^(netmask(net)-1)).
> > All I'm looking for is to be able to print all 4 octets of an IP address
> > out so that joe user can take the 4 numbers and type it into the 
> > 4 boxes on a Windows 98 box, and use them. 
> > 
> > Is that really that abhorrent?
> > 
> > They also need the 4 octet netmask which I can get now. 
> > 
> > All we are missing is a way to print ALL 4 NUMBERS ALL THE TIME
> > for the output.  It's not asking for classful, and for sure
> > we use CIDR all over the place, but for the final output that my
> > users see, why can't I have the database just print all 4 octets?
> 
> Larry, 
> With my suggestion, you can do it as follows:
> 
> net::int8::inet
> 
> (net being of cidr type)
> -alex
> 


-- 
Larry Rosenman                      http://www.lerctr.org/~ler
Phone: +1 972-414-9812 (voice) Internet: ler@lerctr.org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749