| 1 | #!/usr/bin/perl
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| 2 | # dnsadmin shell-based import tool for tinydns flatfiles
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| 3 | ##
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| 4 | # $Id: tiny-import.pl 355 2012-06-29 18:50:17Z kdeugau $
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| 5 | # Copyright 2012 Kris Deugau <kdeugau@deepnet.cx>
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| 6 | #
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| 7 | # This program is free software: you can redistribute it and/or modify
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| 8 | # it under the terms of the GNU General Public License as published by
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| 9 | # the Free Software Foundation, either version 3 of the License, or
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| 10 | # (at your option) any later version.
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| 11 | #
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| 12 | # This program is distributed in the hope that it will be useful,
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | # GNU General Public License for more details.
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| 16 | #
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| 17 | # You should have received a copy of the GNU General Public License
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| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 19 | ##
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| 20 |
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| 21 | use strict;
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| 22 | use warnings;
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| 23 |
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| 24 | use lib '.';
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| 25 | use DNSDB qw(:ALL);
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| 26 |
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| 27 | if (!loadConfig()) {
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| 28 | warn "Using default configuration; unable to load custom settings: $DNSDB::errstr";
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| 29 | }
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| 30 |
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| 31 | my $code;
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| 32 | my ($dbh,$msg) = connectDB($config{dbname}, $config{dbuser}, $config{dbpass}, $config{dbhost});
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| 33 | initGlobals($dbh) if $dbh;
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| 34 |
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| 35 | $dbh->{AutoCommit} = 0;
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| 36 | $dbh->{RaiseError} = 1;
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| 37 |
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| 38 | my %cnt;
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| 39 | my @deferred;
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| 40 | my $errstr = '';
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| 41 |
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| 42 | foreach my $file (@ARGV) {
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| 43 | eval {
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| 44 | import(file => $file);
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| 45 | # import(file => $file, nosoa => 1);
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| 46 | $dbh->rollback;
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| 47 | # $dbh->commit;
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| 48 | };
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| 49 | if ($@) {
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| 50 | print "bleh: $@\n";
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| 51 | die "die harder: $errstr\n";
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | foreach (keys %cnt) {
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| 56 | print " $_ $cnt{$_}\n";
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| 57 | }
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| 58 |
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| 59 | exit 0;
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| 60 |
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| 61 | sub import {
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| 62 | our %args = @_;
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| 63 | my $flatfile = $args{file};
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| 64 | open FLAT, "<$flatfile";
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| 65 |
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| 66 | our $recsth = $dbh->prepare("INSERT INTO records (domain_id,rdns_id,host,type,val,distance,weight,port,ttl) ".
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| 67 | " VALUES (?,?,?,?,?,?,?,?,?)");
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| 68 |
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| 69 | my %deleg;
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| 70 |
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| 71 | while (<FLAT>) {
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| 72 | next if /^#/;
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| 73 | next if /^\s*$/;
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| 74 | chomp;
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| 75 | recslurp($_);
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| 76 | }
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| 77 |
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| 78 | # Try the deferred records again, once.
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| 79 | foreach (@deferred) {
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| 80 | # print "trying $_ again\n";
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| 81 | recslurp($_, 1);
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| 82 | }
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| 83 |
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| 84 | print scalar(@deferred)." deferred records in $flatfile\n";
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| 85 |
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| 86 | # Sub for various nonstandard types with lots of pure bytes expressed in octal
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| 87 | # Takes a tinydns rdata string and count, returns a list of $count bytes as well
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| 88 | # as trimming those logical bytes off the front of the rdata string.
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| 89 | sub _byteparse {
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| 90 | my $src = shift;
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| 91 | my $count = shift;
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| 92 | my @ret;
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| 93 | for (my $i = 0; $i < $count; $i++) {
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| 94 | if ($$src =~ /^\\/) {
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| 95 | # we should have an octal bit
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| 96 | my ($tmp) = ($$src =~ /^(\\\d{3})/);
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| 97 | $tmp =~ s/\\/0/;
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| 98 | push @ret, oct($tmp);
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| 99 | $$src =~ s/^\\\d{3}//;
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| 100 | } else {
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| 101 | # we seem to have a byte expressed as an ASCII character
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| 102 | my ($tmp) = ($$src =~ /^(.)/);
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| 103 | push @ret, ord($tmp);
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| 104 | $$src =~ s/^.//;
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| 105 | }
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| 106 | }
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| 107 | return @ret;
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| 108 | }
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| 109 |
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| 110 | # Convert octal-coded bytes back to something resembling normal characters, general case
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| 111 | sub _deoctal {
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| 112 | my $targ = shift;
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| 113 | while ($$targ =~ /\\(\d{3})/) {
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| 114 | my $sub = chr(oct($1));
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| 115 | $$targ =~ s/\\$1/$sub/g;
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | sub recslurp {
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| 120 | my $rec = shift;
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| 121 | my $nodefer = shift || 0;
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| 122 |
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| 123 | if ($rec =~ /^=/) {
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| 124 | $cnt{APTR}++;
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| 125 |
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| 126 | ##fixme: do checks like this for all types
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| 127 | if ($rec !~ /^=(?:\*|\\052)?[a-z0-9\._-]+:[\d\.]+:\d*/i) {
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| 128 | print "bad A+PTR $rec\n";
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| 129 | return;
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| 130 | }
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| 131 | my ($host,$ip,$ttl,$stamp,$loc) = split /:/, $rec, 5;
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| 132 | $host =~ s/^=//;
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| 133 | $host =~ s/\.$//;
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| 134 | $ttl = 0 if !$ttl;
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| 135 | $stamp = '' if !$stamp;
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| 136 | $loc = '' if !$loc;
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| 137 | $loc = '' if $loc =~ /^:+$/;
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| 138 | my $fparent = DNSDB::_hostparent($dbh, $host);
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| 139 | my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($ip));
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| 140 | if ($fparent && $rparent) {
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| 141 | $recsth->execute($fparent, $rparent, $host, 65280, $ip, 0, 0, 0, $ttl);
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| 142 | } else {
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| 143 | push @deferred, $rec unless $nodefer;
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| 144 | # print "$tmporig deferred; can't find both forward and reverse zone parents\n";
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| 145 | }
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| 146 |
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| 147 | } elsif ($rec =~ /^C/) {
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| 148 | $cnt{CNAME}++;
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| 149 |
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| 150 | my ($host,$targ,$ttl,$stamp,$loc) = split /:/, $rec, 5;
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| 151 | $host =~ s/^C//;
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| 152 | $host =~ s/\.$//;
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| 153 | $ttl = 0 if !$ttl;
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| 154 | $stamp = '' if !$stamp;
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| 155 | $loc = '' if !$loc;
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| 156 | $loc = '' if $loc =~ /^:+$/;
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| 157 | if ($host =~ /\.arpa$/) {
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| 158 | ($code,$msg) = DNSDB::_zone2cidr($host);
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| 159 | my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ($msg));
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| 160 | $recsth->execute(0, $rparent, $targ, 5, $msg->addr, 0, 0, 0, $ttl);
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| 161 |
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| 162 | ##fixme: automagically convert manually maintained sub-/24 delegations
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| 163 | # my ($subip, $zone) = split /\./, $targ, 2;
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| 164 | # ($code, $msg) = DNSDB::_zone2cidr($zone);
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| 165 | # push @{$deleg{"$msg"}{iplist}}, $subip;
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| 166 | #print "$msg $subip\n";
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| 167 |
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| 168 | } else {
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| 169 | my $fparent = DNSDB::_hostparent($dbh, $host);
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| 170 | if ($fparent) {
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| 171 | $recsth->execute($fparent, 0, $host, 5, $targ, 0, 0, 0, $ttl);
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| 172 | } else {
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| 173 | push @deferred, $rec unless $nodefer;
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| 174 | # print "$tmporig deferred; can't find parent zone\n";
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | } elsif ($rec =~ /^\&/) {
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| 179 | $cnt{NS}++;
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| 180 |
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| 181 | my ($zone,$ip,$ns,$ttl,$stamp,$loc) = split /:/, $rec, 6;
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| 182 | $zone =~ s/^\&//;
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| 183 | $zone =~ s/\.$//;
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| 184 | $ttl = 0 if !$ttl;
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| 185 | $stamp = '' if !$stamp;
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| 186 | $loc = '' if !$loc;
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| 187 | $loc = '' if $loc =~ /^:+$/;
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| 188 | if ($zone =~ /\.arpa$/) {
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| 189 | ($code,$msg) = DNSDB::_zone2cidr($zone);
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| 190 | print "revzone $msg from $zone\n";
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| 191 | my ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >>= ?", undef, ("$msg"));
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| 192 | ##fixme, in concert with the CNAME check for same; automagically
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| 193 | # create "delegate" record instead for subzone NSes: convert above to use = instead of >>=
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| 194 | # ($rparent) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$msg"))
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| 195 | # if !$rparent;
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| 196 | if ($rparent) {
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| 197 | $recsth->execute(0, $rparent, $ns, 2, $msg, 0, 0, 0, $ttl);
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| 198 | } else {
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| 199 | push @deferred, $rec unless $nodefer;
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| 200 | }
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| 201 | } else {
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| 202 | my $fparent = DNSDB::_hostparent($dbh, $zone);
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| 203 | if ($fparent) {
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| 204 | $recsth->execute($fparent, 0, $zone, 2, $ns, 0, 0, 0, $ttl);
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| 205 | } else {
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| 206 | push @deferred, $rec unless $nodefer;
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| 207 | }
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| 208 | }
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| 209 |
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| 210 | } elsif ($rec =~ /^\^/) {
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| 211 | $cnt{PTR}++;
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| 212 |
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| 213 | } elsif ($rec =~ /^\+/) {
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| 214 | $cnt{A}++;
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| 215 |
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| 216 | } elsif ($rec =~ /^Z/) {
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| 217 | $cnt{SOA}++;
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| 218 |
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| 219 | my ($zone,$master,$contact,$serial,$refresh,$retry,$expire,$minttl,$ttl,$stamp,$loc) = split /:/, $rec, 11;
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| 220 | $zone =~ s/^Z//;
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| 221 | $zone =~ s/\.$//;
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| 222 | $master =~ s/\.$//;
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| 223 | $contact =~ s/\.$//;
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| 224 | $ttl = 0 if !$ttl;
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| 225 | $stamp = '' if !$stamp;
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| 226 | $loc = '' if !$loc;
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| 227 | $loc = '' if $loc =~ /^:+$/;
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| 228 | if ($zone =~ /\.arpa$/) {
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| 229 | ($code,$msg) = DNSDB::_zone2cidr($zone);
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| 230 | $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,1,1)", undef, ($msg));
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| 231 | my ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
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| 232 | $recsth->execute(0, $rdns, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl);
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| 233 | } else {
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| 234 | $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,1,1)", undef, ($zone));
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| 235 | my ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
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| 236 | $recsth->execute($domid, 0, "$contact:$master", 6, "$refresh:$retry:$expire:$minttl", 0, 0, 0, $ttl);
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| 237 | }
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| 238 |
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| 239 | } elsif ($rec =~ /^\@/) {
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| 240 | $cnt{MX}++;
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| 241 |
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| 242 | } elsif ($rec =~ /^'/) {
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| 243 | $cnt{TXT}++;
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| 244 |
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| 245 | my ($fqdn, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 5;
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| 246 | $fqdn =~ s/^'//;
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| 247 | _deoctal(\$rdata);
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| 248 | $ttl = 0 if !$ttl;
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| 249 | $stamp = '' if !$stamp;
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| 250 | $loc = '' if !$loc;
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| 251 | $loc = '' if $loc =~ /^:+$/;
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| 252 |
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| 253 | my $domid = DNSDB::_hostparent($dbh, $fqdn);
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| 254 | if ($domid) {
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| 255 | $recsth->execute($domid, 0, $fqdn, 16, $rdata, 0, 0, 0, $ttl);
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| 256 | } else {
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| 257 | push @deferred, $rec unless $nodefer;
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| 258 | }
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| 259 |
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| 260 | } elsif ($rec =~ /^\./) {
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| 261 | $cnt{NSASOA}++;
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| 262 |
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| 263 | my ($fqdn, $ip, $ns, $ttl, $stamp, $loc) = split /:/, $rec, 6;
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| 264 | $fqdn =~ s/^\.//;
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| 265 | $fqdn =~ s/\.$//;
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| 266 | $ns =~ s/\.$//;
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| 267 | $ns = "$ns.ns.$fqdn" if $ns !~ /\./;
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| 268 | $ttl = 0 if !$ttl;
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| 269 | $stamp = '' if !$stamp;
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| 270 | $loc = '' if !$loc;
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| 271 | $loc = '' if $loc =~ /^:+$/;
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| 272 |
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| 273 | if ($fqdn =~ /\.arpa$/) {
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| 274 | ($code,$msg) = DNSDB::_zone2cidr($fqdn);
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| 275 | my ($rdns) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet = ?", undef, ($msg));
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| 276 | if (!$rdns) {
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| 277 | $errstr = "adding revzone $msg";
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| 278 | $dbh->do("INSERT INTO revzones (revnet,group_id,status) VALUES (?,1,1)", undef, ($msg));
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| 279 | ($rdns) = $dbh->selectrow_array("SELECT currval('revzones_rdns_id_seq')");
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| 280 | # this would probably make a lot more sense to do hostmaster.$config{admindomain}
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| 281 | $recsth->execute(0, $rdns, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, "2560");
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| 282 | }
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| 283 | $recsth->execute(0, $rdns, $ns, 2, "$msg", 0, 0, 0, $ttl);
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| 284 | ##fixme: (?) implement full conversion of tinydns . records?
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| 285 | # -> problem: A record for NS must be added to the appropriate *forward* zone, not the reverse
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| 286 | #$recsth->execute(0, $rdns, $ns, 1, $ip, 0, 0, 0, $ttl)
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| 287 | # ... auto-A-record simply does not make sense in reverse zones. Functionally
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| 288 | # I think it would work, sort of, but it's a nasty mess and anyone hosting reverse
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| 289 | # zones has names for their nameservers already.
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| 290 | # Even the auto-nameserver-fqdn comes out... ugly.
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| 291 |
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| 292 | } else {
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| 293 | my ($domid) = $dbh->selectrow_array("SELECT domain_id FROM domains WHERE lower(domain) = lower(?)",
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| 294 | undef, ($fqdn));
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| 295 | if (!$domid) {
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| 296 | $errstr = "adding domain $fqdn";
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| 297 | $dbh->do("INSERT INTO domains (domain,group_id,status) VALUES (?,1,1)", undef, ($fqdn));
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| 298 | ($domid) = $dbh->selectrow_array("SELECT currval('domains_domain_id_seq')");
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| 299 | $recsth->execute($domid, 0, "hostmaster.$fqdn:$ns", 6, "16384:2048:1048576:2560", 0, 0, 0, "2560");
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| 300 | }
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| 301 | $recsth->execute($domid, 0, $fqdn, 2, $ns, 0, 0, 0, $ttl);
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| 302 | $recsth->execute($domid, 0, $ns, 1, $ip, 0, 0, 0, $ttl) if $ip;
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| 303 | }
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| 304 |
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| 305 |
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| 306 | } elsif ($rec =~ /^\%/) {
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| 307 | $cnt{VIEWS}++;
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| 308 |
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| 309 | } elsif ($rec =~ /^:/) {
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| 310 | $cnt{NCUST}++;
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| 311 | # Big section. Since tinydns can publish anything you can encode properly, but only provides official
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| 312 | # recognition and handling for the core common types, this must deal with the leftovers.
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| 313 | # :fqdn:type:rdata:ttl:time:loc
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| 314 |
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| 315 | my (undef, $fqdn, $type, $rdata, $ttl, $stamp, $loc) = split /:/, $rec, 7;
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| 316 | $ttl = 0 if !$ttl;
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| 317 | $stamp = '' if !$stamp;
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| 318 | $loc = '' if !$loc;
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| 319 | $loc = '' if $loc =~ /^:+$/;
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| 320 |
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| 321 | if ($type == 33) {
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| 322 | # SRV
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| 323 | my ($prio, $weight, $port, $target) = (0,0,0,0);
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| 324 |
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| 325 | my @tmp = _byteparse(\$rdata, 2);
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| 326 | $prio = $tmp[0] * 256 + $tmp[1];
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| 327 | @tmp = _byteparse(\$rdata, 2);
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| 328 | $weight = $tmp[0] * 256 + $tmp[1];
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| 329 | @tmp = _byteparse(\$rdata, 2);
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| 330 | $port = $tmp[0] * 256 + $tmp[1];
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| 331 |
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| 332 | $rdata =~ s/\\\d{3}/./g;
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| 333 | ($target) = ($rdata =~ /^\.(.+)\.$/);
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| 334 | # hmm. the above *should* work, but What If(TM) we have ASCII-range bytes
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| 335 | # representing the target's fqdn part length(s)? axfr-get doesn't seem to,
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| 336 | # probably because dec. 33->63 includes most punctuation and all the numbers
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| 337 | # while ($rdata =~ /(\\\d{3})/) {
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| 338 | # my $cnt = $1;
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| 339 | # $rdata =~ s/^$cnt//;
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| 340 | # $cnt =~ s/^\\/0/;
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| 341 | # $cnt = oct($cnt);
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| 342 | # my ($seg) = ($rdata =~ /^(.{$cnt})/);
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| 343 | # $target .=
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| 344 | # }
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| 345 |
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| 346 | my $domid = DNSDB::_hostparent($dbh, $fqdn);
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| 347 | if ($domid) {
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| 348 | $recsth->execute($domid, 0, $fqdn, 33, $target, $prio, $weight, $port, $ttl) if $domid;
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| 349 | } else {
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| 350 | push @deferred, $rec unless $nodefer;
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| 351 | }
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| 352 |
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| 353 | } elsif ($type == 28) {
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| 354 | # AAAA
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| 355 | my @v6;
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| 356 |
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| 357 | for (my $i=0; $i < 8; $i++) {
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| 358 | my @tmp = _byteparse(\$rdata, 2);
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| 359 | push @v6, sprintf("%0.4x", $tmp[0] * 256 + $tmp[1]);
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| 360 | }
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| 361 | my $val = NetAddr::IP->new(join(':', @v6));
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| 362 |
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| 363 | my ($rdns) = $dbh->selectrow_array("SELECT rdns_id FROM revzones WHERE revnet >> ?", undef, ("$val"));
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| 364 | if ($rdns) {
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| 365 | $recsth->execute(0, $rdns, $fqdn, 28, $val->addr, 0, 0, 0, $ttl);
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| 366 | } else {
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| 367 | push @deferred, $rec unless $nodefer;
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| 368 | }
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| 369 |
|
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| 370 | } else {
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| 371 | # ... uhhh, dunno
|
|---|
| 372 | }
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| 373 |
|
|---|
| 374 | } else {
|
|---|
| 375 | $cnt{other}++;
|
|---|
| 376 | print " $_\n";
|
|---|
| 377 | }
|
|---|
| 378 | }
|
|---|
| 379 |
|
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| 380 | close FLAT;
|
|---|
| 381 | }
|
|---|
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