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root |
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#! perl |
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use IO::Socket; |
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use Storable qw/nfreeze thaw/; |
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my %global; # for use by eval'ed commands |
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sub tcp_serve($) { |
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my ($fh) = @_; |
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binmode $fh, ":raw:perlio:utf8"; |
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my $buf; |
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my ($a,$b,$c,$d,%l,@l); # for use by shell users |
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print $fh "Welcome\n> "; |
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Event->io (fd => $fh, poll => 'r', data => cf::WF_AUTOCANCEL, cb => sub { |
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if (defined (my $cmd = <$fh>)) { |
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my $old_fh = select $fh; |
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if ($cmd =~ /^\s*exit\b/i) { |
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print "will not exit() server.\n"; |
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} else { |
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{ |
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package cf; |
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eval $cmd; |
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} |
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print $@ if $@; |
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} |
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print "> "; |
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select $old_fh; |
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} else { |
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$_[0]->w->cancel; |
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} |
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}); |
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} |
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# now a shell listening on a tcp-port - let the firewall decide access rights |
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if ($cf::CFG{perl_shell}) { |
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if (my $listen = new IO::Socket::INET LocalAddr => $cf::CFG{perl_shell}, Listen => 1, ReuseAddr => 1) { |
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Event->io (fd => $listen, poll => 'r', data => cf::WF_AUTOCANCEL, cb => sub { tcp_serve $listen->accept }); |
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} |
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} |
