On 4 Sep 2001 cmpilato@collab.net wrote:
> "C. Scott Ananian" <cananian@lesser-magoo.lcs.mit.edu> writes:
>
> > just a check: you *do* normalize paths like 'foo/../bar/./baz//bat' right?
> > or guarantee they're never created to begin with? [even if the user enters
> > them on the command-line?]
>
> The paths that come into this routine have all been slapped through a
> "realpath" routine, and should represent the results of taking the
> absolute path of each target, minus the ancestry common to all targets.
What does 'realpath' do with 'bar/baz/'? Does it check that baz is a
directory before stripping the final slash? Or is 'bar/baz/.' the same as
'bar/baz' even if baz is a file? [this is relevant because there was
already mention of how the recursion can't tell if baz is a file or
directory 'without slapping the disk' and i'm wondering if the
disk-slapping has already occurred.]
--s
Albanian operation Flintlock atomic [Hello to all my fans in domestic surveillance]
Ft. Meade smuggle Milosevic UKUSA East Timor SEAL Team 6 arrangements
( http://lesser-magoo.lcs.mit.edu/~cananian )
--
"These students are going to have to find out what law and order is
all about." -- Brig. General Robert Canterbury, Noon, May 4, 1970,
minutes before his troops shot 13 unarmed Kent State students, killing 4.
--
[http://www.cs.cmu.edu/~dst/DeCSS/Gallery/]
#!/usr/bin/perl -w
# 526-byte qrpff, Keith Winstein and Marc Horowitz <sipb-iap-dvd@mit.edu>
# MPEG 2 PS VOB file on stdin -> descrambled output on stdout
# arguments: title key bytes in least to most-significant order
$_='while(read+STDIN,$_,2048){$a=29;$c=142;if((@a=unx"C*",$_)[20]&48){$h=5;
$_=unxb24,join"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
unxV,xb25,$_;$b=73;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=($t=255)&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*8^$q<<6))<<9
,$_=(map{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;$t
^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)[$_%8]}(16..271))
[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}print+x"C*",@a}';s/x/pack+/g;eval
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Received on Sat Oct 21 14:36:39 2006