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Postings from January 2002
Hewlett Pickens wrote:
>
> Using O'Reilly's "Learning Perl", have set up a "bare bones" socket
> connection between two computers to send a small amount of data from the
> "client" to the "server". (For learning, not for the real world.)
>
> The client sends "are you there" and the server responds with "I am here,
> what do you want".
>
> Each side prints the data it receives.
>
> The client correctly displays the received: "I am here ..."
>
> The server displays junk for the data its received, meaning I haven't
> correctly acquired it.
>
> Code snippets from the server and client are in the text attachment. I'd
> appreciate it if someone could point out the error I'm making in the server
> code.
>
> Thanks,
>
> Hew
I've been thru this, but it was months and months ago and
I'm heading out for work, but I'll take a quick stab at it.
I think you should see what is in $client before you do anything
else. So try adding this one line...
while ($client = $server->accept())
{
print "$client\n"; #ADD THIS JUST FOR KICKS, SEE WHAT YAH GET
$client->autoflush(1);
print "HEWSRV004 - I have a connection from $client \n";
$bufferSize = 100;
# the "->recv" was not in Learning Perl page 441. Got
# it from reading doc for IO::Socket
$dataIn = $client->recv($bufferIn, $bufferSize);
print "HEWSRV005 - I received this data: $dataIn \n";
print $client "I am here. What do you want \n";
print "HEWSRV999 - Data was sent to client\n\n";
}
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