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| author | Christian A. Weber | 2016-02-01 15:42:04 +0100 |
|---|---|---|
| committer | Christian A. Weber | 2016-02-01 15:45:58 +0100 |
| commit | 7b076048688ddd20fc698d19e1921155de8c48e5 (patch) | |
| tree | bdceef3bf214c27130dec0f438e74a2295f0ac39 /it.class | |
| parent | 2ba8c034b134be1af855e1bfcb0b5acadc58cc2d (diff) | |
| download | itools-7b076048688ddd20fc698d19e1921155de8c48e5.tar.gz itools-7b076048688ddd20fc698d19e1921155de8c48e5.tar.bz2 itools-7b076048688ddd20fc698d19e1921155de8c48e5.zip | |
add support for arrays of cidrs in cidr_match()
Diffstat (limited to 'it.class')
| -rw-r--r-- | it.class | 25 |
1 files changed, 16 insertions, 9 deletions
@@ -317,18 +317,25 @@ static function toascii($text) /** * Check whether an IP adress lies within a given range. Supports IPv4 and IPv6 * @param $ip IP address (192.168.42.123) - * @param $cidr IP range in CIDR notation (192.168.42.64/26) + * @param $cidrs IP range in CIDR notation (192.168.42.64/26) or array of ranges * @return true if $ip is within $cidr */ -function cidr_match($ip, $cidr) +function cidr_match($ip, $cidrs) { - list($subnet, $mask) = explode('/', $cidr); - $ip_bin = inet_pton($ip); - $subnet_bin = inet_pton($subnet); - $valid_bytes = $mask ? $mask >> 3 : 42; - $bitmask = 256 - (1 << (8 - ($mask & 7))); - $lastbyte_matched = $bitmask ? (ord($ip_bin{$valid_bytes}) & $bitmask) == (ord($subnet_bin{$valid_bytes}) & $bitmask) : true; - return substr($ip_bin, 0, $valid_bytes) == substr($subnet_bin, 0, $valid_bytes) && $lastbyte_matched; + foreach ((array)$cidrs as $cidr) + { + list($subnet, $mask) = explode('/', $cidr); + $ip_bin = inet_pton($ip); + $subnet_bin = inet_pton($subnet); + $valid_bytes = $mask ? $mask >> 3 : 42; + $bitmask = 256 - (1 << (8 - ($mask & 7))); + $lastbyte_matched = $bitmask ? (ord($ip_bin{$valid_bytes}) & $bitmask) == (ord($subnet_bin{$valid_bytes}) & $bitmask) : true; + + if (substr($ip_bin, 0, $valid_bytes) == substr($subnet_bin, 0, $valid_bytes) && $lastbyte_matched) + return true; + } + + return false; } |