cname quick question
Brad Knowles
brad.knowles at skynet.be
Fri Mar 9 00:37:41 UTC 2001
At 12:20 AM +0000 3/9/01, Jim Reid wrote:
> Well I would have thought the tool should just do the Right Thing:
> resolve the NS targets, complain if it finds CNAMEs or query the
> resulting A/AAAA/A6 record(s) for authoritative answers.
The "lamers" tool just takes what BIND gives it in the log. This
is not something that I believe "doc" checks today, but I may be
wrong. If so, then this needs to be fixed.
However, my real question was based on the algorithm that I, as a
human being, make use of. This tool may/may not be easier to fix.
;-)
> It's not a return code. VRSN1 is the answer the VeriSign/NSI name
> servers give when asked for a Chaosnet TXT record for version.bind.
> You'd have to ask the .com folks why they do that. I don't know or
> care.
Hmm. So, they own all fourteen of the *.gtld-servers.net
machines, unlike the *.root-servers.net machines which are operated
by a variety of organizations around the world? Interesting, I had
no idea....
--
Brad Knowles, <brad.knowles at skynet.be>
#!/usr/bin/perl -w
# 531-byte qrpff-fast, Keith Winstein and Marc Horowitz <sipb-iap-dvd at mit.edu>
# MPEG 2 PS VOB file on stdin -> descrambled output on stdout
# arguments: title key bytes in least to most-significant order
# Usage:
# qrpff 153 2 8 105 225 /mnt/dvd/VOB_FILE_NAME | extract_mpeg2 | mpeg2_dec -
$_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map{$_%16or$t^=$c^=(
$m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;$t^=(72, at z=(64,72,$a^=12*($_%16
-2?0:$m&17)),$b^=$_%64?12:0, at z)[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h
=5;$_=unxb24,join"", at b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$
d=unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d>>12^$d>>4^
$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*8^$q<<6))<<9,$_=$t[$_]^
(($h>>=8)+=$f+(~$g&$t))for at a[128..$#a]}print+x"C*", at a}';s/x/pack+/g;eval
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