Dear Wise Monks,

I am trying to find a bug in a daemon written in Perl and it sets %SIG like so: 

    $SIG{'CHLD'} = 'IGNORE';
    $SIG{'HUP'}  = 'ignore';
    $SIG{'INT'}  = 'CleanUp';    # INT  = 2
    $SIG{'QUIT'} = 'CleanUp';    # QUIT = 3
    $SIG{'PIPE'} = 'CleanUp';    # PIPE = 13
    $SIG{'ALRM'} = 'IGNORE';     # ALRM = 14
    $SIG{'TERM'} = 'CleanUp';    # TERM = 15

[download]
I understand $SIG{'CHLD'} = 'IGNORE' and there is a sub routine CleanUp defined but no sub-routine ignore. Is this a bug and would it be causing zombies?

In reply to Is 'ignore' the same as 'IGNORE' for %SIG? by Plankton

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