| Subject: | lookup of IPv4 address in IPv6 notation fails |
| Date: | Wed, 6 Apr 2011 16:24:54 +0200 |
| To: | bug-Net-CIDR [...] rt.cpan.org |
| From: | Carsten Wolff <carsten [...] wolffcarsten.de> |
Hi,
$ cat test.pl
use Net::CIDR;
print Net::CIDR::cidrlookup("::ffff:192.168.1.10", "192.168.1.0/24");
$ perl test.pl
Invalid netblock: 192.168.5.255-0.0.0.0.0.0.0.0.0.0.255.255.192.168.5.10 at
test.pl line 2
sub _ipv6to4 contains two commented lines (356-357). If I enable those lines
again, the problem vanishes. Why are those lines commented? Can they be re-
enabled in the next release?
I need this for IPv6-support in Net::Server, which might be listening to
either INET or INET6 or wildcard socket and uses cidrlookup() to lookup access
for a peer it got via getpeername($sock). This means, getpeername might return
an IPv4 address in IPv4 notation or IPv6 notation, depending on the type of
socket. In both cases, the cidrlookup should be successfull, independently of
the notation the admin used in the allow-rule of the config file. Also see
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=523846#53
I could work around this in Net::Server, but I think it would be nicer, if
cidrlookup would behave as described above.
Thanks,
Carsten
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