Re: Strange input/cast semantics for inet - Mailing list pgsql-general

From Michael Fuhr
Subject Re: Strange input/cast semantics for inet
Date
Msg-id 20050722004346.GA56911@winnie.fuhr.org
Whole thread Raw
In response to Re: Strange input/cast semantics for inet  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Strange input/cast semantics for inet
List pgsql-general
On Thu, Jul 21, 2005 at 06:38:01PM -0400, Tom Lane wrote:
> Greg Stark <gsstark@mit.edu> writes:
> > The normal way to read "1.10" would be as synonymous with "1.0.0.10".
>
> That might be the case for IPv6, but it's never been a standard
> convention for IPv4; and even for IPv6 it doesn't make any sense
> for a network (as opposed to host) number.

I don't know if it's ever been blessed by a formal standard, but
that way of interpreting an IPv4 address is widely implemented in
inet_aton() and friends.  The 4.2BSD inet(3) manual page documents
that interpretation, and on most (all?) systems I've ever used,
"ping 127.1" is a shortcut for pinging the loopback address.

--
Michael Fuhr
http://www.fuhr.org/~mfuhr/

pgsql-general by date:

Previous
From: Paul Tillotson
Date:
Subject: Re: IN subquery not using a hash
Next
From: Richard Sydney-Smith
Date:
Subject: Connection error