Re: dumb idea(s) (tm)

["Crist Clark" <crist.clark () globalstar com>]

Doru Petrescu wrote:
> in regards to "Re: Antivirus scanner DoS with zip archives" by "Aycan
> Irican <aycan () mars prosoft com tr>"
>
> let's analize this idea some guy had ... he wanted to create a long file
> without using disk space to store it ...
>
> $> perl -e 'print "A"x1000000000' | gzip -f | dd of=file1
>         Out of memory!
>         0+1 records in
>         0+1 records out
>
> first, consider removing 'dd' ... try like this:

I think dd(1) is the easiest way to do this,

  $ touch bighonkin.file &&
  $ ls -l bighonkin.file
  -rw-r--r--  1 cclark  mis  0 Jun 29 11:45 bighonkin.file
  $ df .
  Filesystem   1K-blocks     Used    Avail Capacity  Mounted on
  /dev/ad0s2e    2421089  1447713   779689    65%    /home
  $ dd if=/dev/zero of=bighonkin.file count=1 seek=1000m
  1+0 records in
  1+0 records out
  512 bytes transferred in 0.000462 secs (1108093 bytes/sec)
  $ ls -l bighonkin.file
  -rw-r--r--  1 cclark  mis  536870912512 Jun 29 11:45 bighonkin.file
  $ df .
  Filesystem   1K-blocks     Used    Avail Capacity  Mounted on
  /dev/ad0s2e    2421089  1447753   779649    65%    /home

-- 
Crist J. Clark                                Network Security Engineer
crist.clark () globalstar com                    Globalstar, L.P.
(408) 933-4387                                FAX: (408) 933-4926

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