Bug #43973 for IO: Listen option Doesn't work in Win32, QUEUE does??

Mon Mar 09 15:00:24 2009 mpapet [...] yahoo.com - Ticket created

Subject:

Listen option Doesn't work in Win32, QUEUE does??

The listen option dies as illustrated below. my $listensock = IO::Socket::INET->new ( LocalHost => "localhost", LocalPort => "1434", Proto => "udp", Type => SOCK_DGRAM, Listen => 1, ReuseAddr => 1, ) or die " There's a problem with this server $! \n"; The error returned is "Unknown error" . Replacing "listen" with "QUEUE" does not error out. Are they the same thing? The error is reproducable on strawberry perl. www.strawberryperl.com perl -v returns "This is perl, v5.10.0 built for MSWin32-x86-multi-thread"

Mon Mar 09 15:00:40 2009 mpapet [...] yahoo.com - Status changed from 'new' to 'open'

Mon Mar 09 15:18:30 2009 gbarr [...] pobox.com - Correspondence added

Subject:	Re: [rt.cpan.org #43973] Listen option Doesn't work in Win32, QUEUE does??
Date:	Mon, 9 Mar 2009 14:16:43 -0500
To:	bug-IO [...] rt.cpan.org
From:	Graham Barr <gbarr [...] pobox.com>

On Mar 9, 2009, at 2:00 PM, mpapet@yahoo.com via RT wrote: Show quoted text

> The listen option dies as illustrated below. > my $listensock = IO::Socket::INET->new ( > LocalHost => "localhost", > LocalPort => "1434", > Proto => "udp", > Type => SOCK_DGRAM, > Listen => 1, > ReuseAddr => 1, > ) or die " There's a problem with this server $! \n"; > > The error returned is "Unknown error" . Replacing "listen" with > "QUEUE" > does not error out. Are they the same thing?

IO::Socket::INET does not have an option called QUEUE, it is called Listen. Passing QUEUE will just attempt to connect as a client to whatever is already listening on localhost:1434, which I am sure you do not want. Graham.

Tue Mar 10 14:18:14 2009 mpapet [...] yahoo.com - Correspondence added

Subject:	Listen option Doesn't work in win 2003 server
From:	mpapet [...] yahoo.com

On Mon Mar 09 15:18:30 2009, gbarr@pobox.com wrote: Show quoted text

> On Mar 9, 2009, at 2:00 PM, mpapet@yahoo.com via RT wrote:

> > The listen option dies as illustrated below. > > my $listensock = IO::Socket::INET->new ( > > LocalHost => "localhost", > > LocalPort => "1434", > > Proto => "udp", > > Type => SOCK_DGRAM, > > Listen => 1, > > ReuseAddr => 1, > > ) or die " There's a problem with this server $! \n";

O.K. Here's the output of netstat -an -p udp Active Connections Proto Local Address Foreign Address State UDP 0.0.0.0:161 *:* UDP 0.0.0.0:445 *:* UDP 0.0.0.0:500 *:* UDP 0.0.0.0:4500 *:* UDP 127.0.0.1:123 *:* UDP 172.31.143.48:123 *:* UDP 172.31.143.48:137 *:* UDP 172.31.143.48:138 *:* UDP 172.31.143.71:123 *:* UDP 172.31.143.72:123 *:* UDP 172.31.143.73:123 *:* UDP 172.31.143.74:123 *:* UDP 172.31.143.75:123 *:* UDP 172.31.143.76:123 *:* UDP 172.31.143.77:123 *:* UDP 172.31.143.78:123 *:* UDP 172.31.143.79:123 *:* UDP 172.31.143.80:123 *:* UDP 172.31.143.81:123 *:* UDP 172.31.143.82:123 *:* No UDP port 1434 listed. Running the script above, as is returns an error.

Tue Mar 10 15:32:01 2009 gbarr [...] pobox.com - Correspondence added

Subject:	Re: [rt.cpan.org #43973] Listen option Doesn't work in win 2003 server
Date:	Tue, 10 Mar 2009 14:27:57 -0500
To:	bug-IO [...] rt.cpan.org
From:	Graham Barr <gbarr [...] pobox.com>

On Mar 10, 2009, at 1:18 PM, mpapet@yahoo.com via RT wrote: Show quoted text

> Queue: IO > Ticket <URL: https://rt.cpan.org/Ticket/Display.html?id=43973 > > > On Mon Mar 09 15:18:30 2009, gbarr@pobox.com wrote:

>> On Mar 9, 2009, at 2:00 PM, mpapet@yahoo.com via RT wrote:

>>> The listen option dies as illustrated below. >>> my $listensock = IO::Socket::INET->new ( >>> LocalHost => "localhost", >>> LocalPort => "1434", >>> Proto => "udp", >>> Type => SOCK_DGRAM, >>> Listen => 1, >>> ReuseAddr => 1, >>> ) or die " There's a problem with this server $! \n";

> O.K. Here's the output of netstat -an -p udp

Doh, I did not see the udp there before. Listen and accept are for tcp connections. With tcp you have to listen for incomming connections. But with udp you do not connect. You jsut create the socket and use recv/send Graham.

Fri May 15 01:11:41 2009 GBARR [...] CPAN.ORG - Status changed from 'open' to 'resolved'