[Mimedefang] Simple feature request
Damrose, Mark
mdamrose at elgin.edu
Wed Sep 15 10:43:59 EDT 2004
> -----Original Message-----
> From: WBrown at e1b.org [mailto:WBrown at e1b.org]
[snip]
> would it be difficult to detect
> which format the
> host was specified?
>
> If there are multiple colons, it would be an IPv6 numeric
> address. If
> there is only one, it is hostname:port or IPv4:port.
IIRC, IPv6 uses single colons unless there is an
un-ambiguous string of all zero which can be replaced by
2 colons (but only once - otherwise it would be ambiguous)
It may be possible to easily detect and IPv6 address vs. a
hostname:port or even IPv4:port, but the use of a single
vs. double colon wouldn't be the method.
Maybe the use of the method in RFC2372 - similar to what
sendmail uses.
(http://www.ietf.org/rfc/rfc2732.txt)
Literal IPv4 or IPv6 addresses must be enclosed in square
brackets [], otherwise they are presumed to be names.
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