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package Net::Netcat; |
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1622
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use warnings; |
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use strict; |
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our $VERSION = '0.05'; |
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use base qw( Class::Accessor::Fast Class::ErrorHandler ); |
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2452
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__PACKAGE__->mk_accessors(qw/ |
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netcat |
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options |
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timeout |
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stdin |
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stdout |
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stderr |
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command |
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/); |
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14089
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use IPC::Run qw( run ); |
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164889
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154
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use Carp qw( carp ); |
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1799
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our %options = ( |
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ipv4only => '-4', |
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ipv6only => '-6', |
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staylistening => '-k', |
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listenmode => '-l', |
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nodns => '-n', |
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randomports => '-r', |
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md5sign => '-S', |
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rfc854telnet => '-y', |
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unixsocket => '-U', |
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udpsocket => '-u', |
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verbose => '-v', |
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scanmode => '-z', |
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tcprecvbuff => '-I length', |
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tcpsendbuff => '-O length', |
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delaypkt => '-i interval', |
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sourceport => '-p source_port', |
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sourceip => '-s source', |
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toskeyword => '-T tos', |
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timeout => '-w timeout', |
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port => '-port port', |
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dest => '-dest destination_to_connect_to' |
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); |
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sub new { |
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my $class = shift; |
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my $self = { |
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nc => shift || 'nc', |
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options => [], |
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timeout => 0, |
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}; |
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19587
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system("$self->{nc} > /dev/null 2>&1"); |
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86
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my $ret = $? >> 8; |
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if ( $ret != 0 and $ret != 1 ) { |
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0
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carp "Can't find nc command."; |
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exit 0; |
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} |
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bless $self, $class; |
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} |
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64
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sub execute { |
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my ($lflag, $printflg, $opts, %h, $ncdest, $ncport, $uflag) = (); |
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my $self = shift; |
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$opts = $self->{options}; |
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%h = %{$opts}; |
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71
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72
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my @ncopts = (); |
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for my $key (keys(%h)) { |
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my $value = $h{$key}; |
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if($key =~ /\-port/) { |
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0
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0
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$ncport = $value; |
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0
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0
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next; |
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} |
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if($key =~ /\-dest/) { |
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$ncdest = $value; |
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0
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next; |
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} |
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if(int($value) != 1) { |
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push @ncopts, $key . ' ' . $value; |
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} else { |
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$printflg = 1 if ($key =~ /\-v/); |
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$uflag = 1 if ($key =~ /\-U/); |
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$lflag = 1 if ($key =~ /\-l/); |
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push @ncopts, $key; |
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} |
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92
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} |
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2
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159
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my $cmd = $self->{nc}; |
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my $ncoptsline = join ' ', @ncopts; |
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if(defined($ncdest) and $ncdest =~ /\S/ and defined($uflag) and $uflag == 1) { |
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0
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0
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0
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96
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$ncoptsline = $ncoptsline . " " . $ncdest; |
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} elsif(defined($ncport) and $ncport =~ /\d/ and defined($lflag) and $lflag == 1) { |
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0
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$ncoptsline = $ncoptsline . " " . $ncport; |
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} elsif(defined($ncdest) and $ncdest =~ /\S/ and defined($ncport) and $ncport =~ /\d/) { |
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0
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$ncoptsline = $ncoptsline . " " . join " ", $ncdest, $ncport; |
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} |
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my $fullcmd = $cmd . " " . $ncoptsline ; |
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2
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33
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1001
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print "Command line is: $fullcmd\n" if(defined($printflg) and $printflg == 1); |
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2
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my @runcmd = split / /, $fullcmd; |
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106
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2
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38
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run \@runcmd; |
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2
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22400
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return 0; |
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109
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} |
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111
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*exec = \&execute; |
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113
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__END__ |