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Id: 91231
Status: resolved
Priority: 0/
Queue: IO

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Owner: Nobody in particular
Requestors: n-a [...] u01.gate01.com
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Subject: Why IO::Socket::INET prohibit to bind dynamic port on INADDR_ANY?
Date: Sat, 07 Dec 2013 11:19:35 +0900
To: bug-IO [...] rt.cpan.org
From: "N.A." <n-a [...] u01.gate01.com>
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Hi all, I want to listen on dynamically selected port using IO::Socket::INET. When I specify LocalAddr to '127.0.0.1' or so, it works. However it doesn't work for '0.0.0.0'. The code in IO/Socket/INET.pm seems intentionally prohibit this. I'm just curious to know the reason. N.A. --- works well -- use IO::Socket; my $sock = IO::Socket::INET->new( Proto => 'udp', LocalPort => 0, LocalAddr => '127.0.0.1' ); say $sock->sockport(); ------ --- doesn't work -- use IO::Socket; my $sock = IO::Socket::INET->new( Proto => 'udp', LocalPort => 0, LocalAddr => '0.0.0.0' ); say $sock->sockport(); ------ --- IO/Socket/INET.pm line 202 -- if($lport || ($laddr ne INADDR_ANY) || exists $arg->{Listen}) { $sock->bind($lport || 0, $laddr) or return _error($sock, $!, "$!"); } -------
Ticket migrated to github as https://github.com/toddr/IO/issues/28


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