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fix for logging on non-file based filehandles #1

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fix for logging on non-file based filehandles #1

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14 changes: 10 additions & 4 deletions lib/Net/Telnet.pm
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Original file line number Diff line number Diff line change
Expand Up @@ -2913,21 +2913,27 @@ sub _io_socket_include {
eval "require IO::Socket";
} # end sub io_socket_include


sub _is_open_fh {
my ($fh) = @_;
my $is_open = '';
local $@;

eval {
local $SIG{"__DIE__"} = "DEFAULT";
$is_open = defined(fileno $fh);
local $SIG{"__DIE__"} = "DEFAULT";
$is_open = defined(fileno $fh);
};

if (!$is_open and $@) { # fileno() failed
## Check if filehandle is tied and printable.
eval {
local $SIG{"__DIE__"} = "DEFAULT";
$is_open = tied(*$fh) && $fh->can("print");
};
}

$is_open;
} # end sub _is_open_fh


sub _log_dump {
my ($direction, $fh, $data, $offset, $len) = @_;
my (
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