function NoProxyPattern::ipGetNetwork

Calculates and returns the network and mask

Parameters

string $rangeIp IP in_addr:

int $size Byte size of in_addr:

int $prefix CIDR prefix-length:

Return value

string[] network in_addr, binary mask

1 call to NoProxyPattern::ipGetNetwork()

NoProxyPattern::ipCheckData in vendor/composer/composer/src/Composer/Util/NoProxyPattern.php

Creates an object containing IP data if the host is an IP address

File

vendor/composer/composer/src/Composer/Util/NoProxyPattern.php, line 283

Class

NoProxyPattern

Tests URLs against NO_PROXY patterns

Namespace

Composer\Util

Code

private function ipGetNetwork(string $rangeIp, int $size, int $prefix) : array {
    $netmask = $this->ipGetMask($prefix, $size);
    // Get the network from the address and mask
    $mask = unpack('C*', $netmask);
    $ip = unpack('C*', $rangeIp);
    $net = '';
    if (false === $mask) {
        throw new \RuntimeException('Could not parse netmask ' . $netmask);
    }
    if (false === $ip) {
        throw new \RuntimeException('Could not parse range IP ' . $rangeIp);
    }
    for ($i = 1; $i < 17; ++$i) {
        $net .= chr($ip[$i] & $mask[$i]);
    }
    return [
        $net,
        $netmask,
    ];
}