Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
By 'above' I was refering to my previous post. If you run an eval on user input, the user input could be anything. In this case if the user instead of entering '>=' like we expect, enters ';`sudo rm -rf /`;' this will make the eval execute this extremely damaging command.

For more reasons of how to make sure you are not allowing users to do bad things, please read the perlsec manpage

In reply to Re: Re: Re: Re: Re: How to do that with eval ? by perlmonkey
in thread How to do that with eval ? by iwanthome

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others lurking in the Monastery: (9)
    As of 2015-10-13 18:41 GMT
    Find Nodes?
      Voting Booth?

      Does Humor Belong in Programming?

      Results (312 votes), past polls