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Wrapping the socket operations within an eval block will help fix both issues. First, if connection is refused, the error will be put into $@ for later processing if you desire. Second, the timeout effect I believe you're after can be achieved with a local alarm signal handler, and setting the number of seconds before the alarm is raised (this error will also be put into $@ if triggered)...

#!/usr/bin/perl use strict; use warnings; use IO::Socket::INET; eval { local $SIG{ALRM} = sub { die 'timeout'; }; alarm 10; my $socket = IO::Socket::INET->new( PeerHost => $ARGV[0], PeerPort => 22, Proto => 'tcp', ); die "$!\n" unless $socket; $socket->print("\n"); my $output = join '', $socket->getline(); print $output; }; # if eval set an error... handle it if ($@){ ... if $@ eq 'timeout'; ... if $@ eq 'Connection refused'; }

-stevieb

ps. Note that in the IO::Socket::INET documentation, all of the parameters start with an upper-case letter (you mistyped 'Proto' and 'Timeout'). I don't know whether that's operationally important or not in this case, but I wanted to point it out. Not using an API according to the documentation can lead to incorrect results.


In reply to Re: test version of ssh from windows by stevieb
in thread test version of ssh from windows by mariog

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