forum.lissyara.su

Код: Выделить всё

remcomp% ipcalc -nb 192.168.0.1 | grep Network | awk '{print $2}'
192.168.0.0/24

Код: Выделить всё

cat ipfilter.dat
000.000.000.000 - 000.255.255.255 , 000 , Bogon
001.000.001.000 - 001.000.001.255 , 000 , Bogon
001.000.002.000 - 001.000.003.255 , 000 , Bogon
001.000.004.000 - 001.000.007.255 , 000 , Bogon
001.000.008.000 - 001.000.015.255 , 000 , Bogon
001.000.016.000 - 001.000.031.255 , 000 , Bogon
001.000.032.000 - 001.000.063.255 , 000 , Bogon
001.000.064.000 - 001.000.127.255 , 000 , Bogon
001.000.128.000 - 001.000.255.255 , 000 , Bogon
001.001.000.000 - 001.001.000.255 , 000 , Bogon
001.001.002.000 - 001.001.003.255 , 000 , Bogon
001.001.004.000 - 001.001.007.255 , 000 , Bogon
001.001.008.000 - 001.001.015.255 , 000 , Bogon
001.001.016.000 - 001.001.031.255 , 000 , Bogon
001.001.032.000 - 001.001.063.255 , 000 , Bogon
001.001.064.000 - 001.001.127.255 , 000 , Bogon
001.001.128.000 - 001.001.255.255 , 000 , Bogon
001.002.000.000 - 001.002.001.255 , 000 , Bogon
001.002.002.000 - 001.002.002.255 , 000 , Bogon
001.002.004.000 - 001.002.007.255 , 000 , Bogon
001.002.008.000 - 001.002.015.255 , 000 , Bogon
001.002.016.000 - 001.002.031.255 , 000 , Bogon
001.002.032.000 - 001.002.063.255 , 000 , Bogon
001.002.064.000 - 001.002.127.255 , 000 , Bogon
и тд

Код: Выделить всё

#!/usr/local/bin/php 
<?php

$line[0] = "000.000.000.000 - 000.255.255.255 , 000 , Bogon";
$line[1] = "001.000.001.000 - 001.000.001.255 , 000 , Bogon";
$line[2] = "001.000.002.000 - 001.000.003.255 , 000 , Bogon";
$line[3] = "001.000.004.000 - 001.000.007.255 , 000 , Bogon";
$line[4] = "001.000.008.000 - 001.000.015.255 , 000 , Bogon";
$line[5] = "001.000.016.000 - 001.000.031.255 , 000 , Bogon";
$line[6] = "001.000.032.000 - 001.000.063.255 , 000 , Bogon";
$line[7] = "001.000.064.000 - 001.000.127.255 , 000 , Bogon";
$line[8] = "001.000.128.000 - 001.000.255.255 , 000 , Bogon";

foreach ($line as $l)
{
    $values = explode(' ', $l);
    $val1 = explode('.', $values[0]);
    $val2 = explode('.', $values[2]);

    $ip1 = ($val1[0] << 24) | ($val1[1] << 16) | ($val1[2] << 8) | $val1[3];
    $ip2 = ($val2[0] << 24) | ($val2[1] << 16) | ($val2[2] << 8) | $val2[3];

    $host_count = $ip2 - $ip1;
    $bits = 32 - ceil(log($host_count, 2));

    $c = $bits;
    while($c--)
    {
        $netmask >>= 1;
        $netmask |= 0x80000000;
    }

    echo long2ip(($ip1 & $netmask)) . "/" . $bits . "\n";
}

?>

Код: Выделить всё

remcomp% ./test.php
0.0.0.0/8
1.0.1.0/24
1.0.2.0/23
1.0.4.0/22
1.0.8.0/21
1.0.16.0/20
1.0.32.0/19
1.0.64.0/18
1.0.128.0/17

Код: Выделить всё

while($c--)

Код: Выделить всё

#!/usr/local/bin/php 
<?php

$f = fopen("/data/downloads/guarding.p2p", "r");

while($l = fgets($f))
{
    $values = explode(' ', $l, 7);
    $val1 = explode('.', $values[0]);
    $val2 = explode('.', $values[2]);

    $ip1 = ($val1[0] << 24) | ($val1[1] << 16) | ($val1[2] << 8) | $val1[3];
    $ip2 = ($val2[0] << 24) | ($val2[1] << 16) | ($val2[2] << 8) | $val2[3];

    $host_count = $ip2 - $ip1;
    $bits = min(32 - ceil(log($host_count, 2)), 32);

    $c = $bits;
    $netmask = 0;
    while($c--)
    {
        $netmask >>= 1;
        $netmask |= 0x80000000;
    }

    echo long2ip(($ip1 & $netmask)) . "/" . $bits . "\t" . $values[6];
}

fclose($f);

?>