I'm not sure I totally understand all of your question, but talking over
an IO::Socket is pretty darn simple, if we're talking about a line
oriented protocol. You can use what you have always used for Perl input
and output:
use IO::Socket::INET;
my $socket = IO::Socket::INET->new( PeerAddr => $server,
PeerPort =>
$port, )
or die "Socket Error: Unable to connect to host.";
# and then simply...
print $socket "$line to send\n"; # send a line
my $line_read = <$socket>; # read a line
I'm not sure exactly what you meant by translating the data, but a
common socket problem in that the talking program and the listening
program are expecting different line endings, because of the platform
they're running on. UNIX systems use Line Feed (\012) as a line ending,
Mac applications favor the Carriage Return (\015) though many Mac OS X
programs are switching over to UNIX thinking, and Windows is usually
looking for a Carriage Return followed by a Line Feed (\015\012). Many
networking protocols, including telnet, take the Windows road and look
for both characters. In that case, we have to change my above example a
little:
use IO::Socket::INET (:DEFAULT :crlf); # import a shortcut for both
characters
local $/ = CRLF; # sets reads to terminate after seeing both characters
my $socket = IO::Socket::INET->new( PeerAddr => $server,
PeerPort =>
$port, )
or die "Socket Error: Unable to connect to host.";
print $socket "$line to send", CRLF; # we now end our lines with both
characters
my $line_read = <$socket>; # works because of the variable change above
Well, I hope that helps. If I missed your problem, take another stab at
explaining what's going wrong and I'll try again. Good luck.
James
On Monday, September 2, 2002, at 09:09 AM, Felix Geerinckx wrote:
> Hi,
>
> I'm trying to learn IO::Socket and i have a little problem is that i DO
> NOT
> know how to receive data i use the recv function but doesn't work at
> all.
>
> I know how to send data- I know it works because it is a visual basic
> program that receives the data and it displays the correct data.
>
> But I can send data to a perl program but I don't know how to translate
> it.
>
> Any HELP is REALLY appreciated.
>
> Anthony
>
James
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