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firewall: add port validation

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This commit is contained in:
Franco Fichtner 2017-10-16 09:40:07 +02:00
parent c573be2915
commit a9cebd1b4e
1 changed files with 3 additions and 2 deletions
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5
src/etc/inc/filter.inc
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@ -177,8 +177,9 @@ function process_alias_urltable($name, $alias_type, $url, $freq, $forceupdate =
// cleanse line item
$line = preg_split('/[\s,;|#]+/', $line)[0];
if ($alias_type == "urltable_ports") {
// todo: add proper validation for ports here
fwrite($output_file_handle, "{$line}\n");
if ((string)((int)$line) === $line && $line >= 1 && $line <= 65535) {
fwrite($output_file_handle, "{$line}\n");
}
} else {
// validate or resolve line items, skip unparseable content
if (is_subnet($line) || is_ipaddr($line)) {