1 files changed, 39 insertions, 0 deletions
diff --git a/make_ip6_del.pl b/make_ip6_del.pl
new file mode 100755
index 0000000..80f0b0c
--- /dev/null
+++ b/make_ip6_del.pl
@@ -0,0 +1,39 @@
+#!/usr/bin/perl
+
+use warnings;
+use strict;
+
+while (<>) {
+	chomp;
+	s/#.*$//;
+	s/^\s+//; s/\s+$//;
+	next if /^$/;
+
+	die "format error:\n$_\n"
+		if not m#^([\da-fA-F]{4}):([\da-fA-F]{1,4})::/(\d+)\s+([\w\.]+)$#;
+	my $len = $3; my $s = $4;
+	my $i1 = $1; my $i2 = $2;
+	my $net = (hex($i1) << 16) + hex $i2;
+
+	if (0) { # just some code to help me visually aggregate networks
+		my $bs = unpack('B32', pack('N', $net));
+		$bs =~ s/(.{8})/$1 /g;
+		print "${i1}:${i2}::/$len\t$bs $s\n";
+		next;
+	}
+
+	print qq|{ ${net}UL, $len, "|;
+	if ($s =~ /\./) {
+		print $s;
+	} elsif ($s eq '6to4') {
+		print "\\x0A";
+	} elsif ($s eq 'teredo') {
+		print "\\x0B";
+	} elsif ($s eq 'UNALLOCATED') {
+		print "\\006";
+	} else {
+		print $s =~ /\./ ? $s : "whois.$s.net";
+	}
+	print qq|" },\n|;
+}
+