Re: [HACKERS] CIDR type and functions

> Thus spake Bruce Momjian
> > Check \df and \fo.  There is a >> and << operators that do subnet
> > testing.
>
> [I assume you meant \do]
>
> Cool.  I checked out what other functions as well.  I don't see a couple
> that were discussed early on though.  Specifically, how about functions
> to extract the  host, the network or the netmask from an address?
>
> Here are the functions I had suggested.
>
>     netmask('192.3.4.5/24::cidr') == 255.255.255.0
>     masklen('192.3.4.5/24::cidr') == 24
>     host('192.3.4.5/24::cidr') == 192.3.4.5
>     network('192.3.4.5/24::cidr') == 192.3.4.0
>
> and perhaps;
>
>     class('192.3.4.5/24::cidr') == C
>     classnet('192.3.4.5/24::cidr') == 192.3.4
>
> Can I help code up some of this stuff?

Yes, we need those.  Code them up, and I will add them as standard
types.


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