function _autoban_cidr_match in Automatic IP ban (Autoban) 7

Is IP address in subnet?

Parameters

string $ip: IP address for match check.

string $network: IP subnet.

string $cidr: CIDR.

Return value

bool IP mathes for subnet or wrong arguments.

1 call to _autoban_cidr_match()

autoban_whitelist_ip in ./autoban.module

Is IP address in whitelist

File

./autoban.module, line 797

Main file for autoban module.

Code

function _autoban_cidr_match($ip, $network, $cidr) {
  $cidr = intval($cidr);
  if ($cidr > 32) {
    return FALSE;
  }
  return (ip2long($ip) & ~((1 << 32 - $cidr) - 1)) == ip2long(trim($network));
}