Forgive me brothers, it has been a long time since I last sought your wisdom.

I am working on a socket server to monitor remote machines, and I thought that it would be nice to write a pair of functions, writeClient and writeLog. writeLog appears to be working just fine. However, writeClient throws 

Can't use an undefined value at ./myPerlServ.pl line 150.

Here are some of the relevant pieces of code:

    my $client;

    while ( $client = $server->accept() ) {
        ...
        writeClient("I'm trying to do something, really!");
    }

    ...

sub writeClient {
    ### Read args, take first arg and use it, dump the rest
    my ( $message, @junk ) = @_;

    my $clientMessage = "$message\r\n";
    print $client $clientMessage;
}

[download]

I'm curious, do I need to pass $client into writeClient and then dereference it? (References in Perl confuse me a great deal sometimes.) Or is there something else that I am completely missing?



If you make something idiot-proof, eventually someone will make a better idiot.
I am that better idiot.

In reply to Undefined value as a symbol reference by peschkaj

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