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| Perl Monk, Perl Meditation | |
| PerlMonks |
Re: Please explain this tainting behaviourby roju (Friar) |
| on Aug 05, 2004 at 16:32 UTC ( #380321=note: print w/replies, xml ) | Need Help?? |
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perldoc -f kill claims that kill with a signal 0 does nothing. 0 * anything is 0, so if $_[0] is not tainted, nothing happens. However, if $_[0] is tainted, then the code will die with "Insecure dependency in kill while running with -T switch at -e line 1, <STDIN> l ine 1.". So if $_[0] is tainted, $@ matches. If $_[0] is not tainted, no match.
In Section
Seekers of Perl Wisdom
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