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Add a check for a failed dns query in get_astext() (#9020)

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This commit is contained in:
Tony Murray
2018-08-17 12:17:45 -05:00
committed by Neil Lathwood
parent 90665533b7
commit c57f60644d
1 changed files with 17 additions and 13 deletions
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18
includes/functions.php
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@ -968,21 +968,25 @@ function snmp2ipv6($ipv6_snmp)
function get_astext($asn) function get_astext($asn)
{ {
global $config,$cache; global $cache;
if (Config::has("astext.$asn")) {
return Config::get("astext.$asn");
}
if (isset($config['astext'][$asn])) {
return $config['astext'][$asn];
} else {
if (isset($cache['astext'][$asn])) { if (isset($cache['astext'][$asn])) {
return $cache['astext'][$asn]; return $cache['astext'][$asn];
} else { }
$result = dns_get_record("AS$asn.asn.cymru.com", DNS_TXT); $result = dns_get_record("AS$asn.asn.cymru.com", DNS_TXT);
if (!empty($result[0]['txt'])) {
$txt = explode('|', $result[0]['txt']); $txt = explode('|', $result[0]['txt']);
$result = trim(str_replace('"', '', $txt[4])); $result = trim($txt[4], ' "');
$cache['astext'][$asn] = $result; $cache['astext'][$asn] = $result;
return $result; return $result;
} }
}
return '';
} }
/** /**