function NoProxyPattern::ipGetMask

Returns the binary network mask mapped to IPv6

Parameters

int $prefix CIDR prefix-length:

int $size Byte size of in_addr:

1 call to NoProxyPattern::ipGetMask()

NoProxyPattern::ipGetNetwork in vendor/composer/composer/src/Composer/Util/NoProxyPattern.php: Calculates and returns the network and mask

File

vendor/composer/composer/src/Composer/Util/NoProxyPattern.php, line 257

Class

NoProxyPattern: Tests URLs against NO_PROXY patterns

Namespace

Code

private function ipGetMask(int $prefix, int $size) : string {
    $mask = '';
    if ($ones = floor($prefix / 8)) {
        $mask = str_repeat(chr(255), (int) $ones);
    }
    if ($remainder = $prefix % 8) {
        $mask .= chr(0xff ^ 0xff >> $remainder);
    }
    $mask = str_pad($mask, $size, chr(0));
    return $this->ipMapTo6($mask, $size);
}