leeyc0,
> > After some struggle and tracing every bit of code (including tracing
> > installing cpan packages!), apparently it is a bug in the latest
> > Net::DNS::Packet::Resolver::Base send_tcp function call...
>
> Yes, it is caused by a bug in Net::DNS::Resolver::Base (sorry, there was a
> typo before about the package name).
>
> I have to comment a line Net/DNS/Resolver/Base.pm to fix this problem.
>
> (below is some lines in Net/DNS/Resolver/Base.pm send_tcp function)
> $buf = read_tcp($sock, $len, $self->{'debug'});
>
> # comment this line, this should be a class property but used as a function
> # apparently mixed up with Net::DNS::Packet
> #$self->answerfrom($sock->peerhost);
>
> print ';; received ', length($buf), " bytes\n"
> if $self->{'debug'};
Thanks, good work - except that I can't reproduce the problem,
and the fallback to TCP in Net::DNS 0.66 works just fine
with your first sample message.
Which version of Net::DNS are you using?
Does the SpamAssassin dkim test produce any errors?
$ prove t/dkim2.t
$ export RES_OPTIONS="debug"
$ perl -MMail::DKIM::Verifier -ne '
BEGIN{$dkim=Mail::DKIM::Verifier->new_object};
s/\r?\n\z/\015\012/; $dkim->PRINT($_); END{$dkim->CLOSE;
printf("%s\n",$_->result_detail) for $dkim->signatures}' dkim-failed.eml
;; query(ns4._domainkey.iwtek.net, TXT)
;; Trying to set up a AF_INET6() family type UDP socket with srcaddr: 0.0.0.0
... done
;; setting up an AF_INET() family type UDP socket
;; send_udp(::1:53)
;; answer from ::1:53 : 478 bytes
;; HEADER SECTION
;; id = 29254
;; qr = 1 opcode = QUERY aa = 0 tc = 1 rd = 1
;; ra = 1 ad = 0 cd = 0 rcode = NOERROR
;; qdcount = 1 ancount = 1 nscount = 0 arcount = 0
;; QUESTION SECTION (1 record)
;; ns4._domainkey.iwtek.net. IN TXT
;; ANSWER SECTION (1 record)
ns4._domainkey.iwtek.net. 2095 IN TXT "v=DKIM1\; k=rsa\;
t=y\; " "p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApEnzzPme"
"RPW8s51DoJqu4ShXkFxLZVoSwPapc1HUGWCNBFbMvKReIYLxQoCWMC"
"h6E1Pv5GITqWC1LrA9dluupPHIuyu7vXMMkecq6o1e4T0J5ZspzNMa"
"TtPrvwlZEE5KZ5bWXuDTDjK6e24KfkPgWPg5jjMWs/fkEjPBNsNNmh"
"kHkXMulHb4+LkTSgDWxE6WgMc8R7KvUuY6AedeY3CUpzzBqn/UNZgu"
"w8Z9y7y2GPJK9lm4ERkbqZuiRB+iCDYmlSgUClWGk4cywkWK3AaAB/"
"7w+2xLJ2DgVDGrgxLQCVLlpHnybGrh6FN0R8mlffZy9RJpmq3raO/e" "YkD1t2eeWQIDAQAB"
;; AUTHORITY SECTION (0 records)
;; ADDITIONAL SECTION (0 records)
;;
;; packet truncated: retrying using TCP
;; attempt to send_tcp(::1:53) (src port = 0)
;; sending 42 bytes
;; read_tcp: expecting 2 bytes
;; read_tcp: received 2 bytes
;; read_tcp: expecting 614 bytes
;; read_tcp: received 614 bytes
;; received 614 bytes
;; HEADER SECTION
;; id = 29254
;; qr = 1 opcode = QUERY aa = 0 tc = 0 rd = 1
;; ra = 1 ad = 0 cd = 0 rcode = NOERROR
;; qdcount = 1 ancount = 1 nscount = 4 arcount = 4
;; QUESTION SECTION (1 record)
;; ns4._domainkey.iwtek.net. IN TXT
;; ANSWER SECTION (1 record)
ns4._domainkey.iwtek.net. 2095 IN TXT "v=DKIM1\; k=rsa\;
t=y\; " "p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApEnzzPme"
"RPW8s51DoJqu4ShXkFxLZVoSwPapc1HUGWCNBFbMvKReIYLxQoCWMC"
"h6E1Pv5GITqWC1LrA9dluupPHIuyu7vXMMkecq6o1e4T0J5ZspzNMa"
"TtPrvwlZEE5KZ5bWXuDTDjK6e24KfkPgWPg5jjMWs/fkEjPBNsNNmh"
"kHkXMulHb4+LkTSgDWxE6WgMc8R7KvUuY6AedeY3CUpzzBqn/UNZgu"
"w8Z9y7y2GPJK9lm4ERkbqZuiRB+iCDYmlSgUClWGk4cywkWK3AaAB/"
"7w+2xLJ2DgVDGrgxLQCVLlpHnybGrh6FN0R8mlffZy9RJpmq3raO/e" "YkD1t2eeWQIDAQAB"
;; AUTHORITY SECTION (4 records)
iwtek.net. 2029 IN NS ns6.iwtek.net.
iwtek.net. 2029 IN NS ns3.iwtek.net.
iwtek.net. 2029 IN NS ns4.iwtek.net.
iwtek.net. 2029 IN NS ns5.iwtek.net.
;; ADDITIONAL SECTION (4 records)
ns3.iwtek.net. 2095 IN A 116.92.10.96
ns4.iwtek.net. 2095 IN A 116.92.10.97
ns5.iwtek.net. 2095 IN A 116.92.10.98
ns6.iwtek.net. 2095 IN A 218.213.70.126
pass
Mark
