Revision 76a56fce
Added by Stilez y about 9 years ago
| src/etc/inc/util.inc | ||
|---|---|---|
| 877 | 877 |
} |
| 878 | 878 |
} |
| 879 | 879 |
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| 880 |
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| 881 |
function subnet_expand($subnet) {
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| 882 |
if (is_subnetv4($subnet)) {
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return subnetv4_expand($subnet); |
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| 884 |
} else if (is_subnetv6($subnet)) {
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return subnetv6_expand($subnet); |
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} else {
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return $subnet; |
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| 888 |
} |
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} |
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function subnetv4_expand($subnet) {
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$result = array(); |
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list ($ip, $bits) = explode("/", $subnet);
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$net = ip2long($ip); |
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$mask = (0xffffffff << (32 - $bits)); |
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$net &= $mask; |
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$size = round(exp(log(2) * (32 - $bits))); |
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for ($i = 0; $i < $size; $i += 1) {
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$result[] = long2ip($net | $i); |
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} |
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return $result; |
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} |
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| 904 | 880 |
/* find out whether two IPv4/IPv6 CIDR subnets overlap. |
| 905 | 881 |
Note: CIDR overlap implies one is identical or included so largest sn will be the same */ |
| 906 | 882 |
function check_subnets_overlap($subnet1, $bits1, $subnet2, $bits2) {
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Also available in: Unified diff
Remove subnet_expand()
Function isn't used in main or packages repo, and in any case would need a complete rewrite to handle IPv6.
(cherry picked from commit 6215902c4043726e633fcfac1c37c710ac398653)