From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Wed, 8 Jan 2020 09:35:24 +0000 (+0100)
Subject: dns.cgi: Only perform reverse lookups if the system is online
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=25dda4a082b6b2927cbe16039bf1ef96b955a1ff;p=people%2Fstevee%2Fipfire-2.x.git

dns.cgi: Only perform reverse lookups if the system is online

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
---

diff --git a/html/cgi-bin/dns.cgi b/html/cgi-bin/dns.cgi
index 6ec295dea7..7d80b4eaa5 100755
--- a/html/cgi-bin/dns.cgi
+++ b/html/cgi-bin/dns.cgi
@@ -519,8 +519,13 @@ END
 				my $ccode = &GeoIP::lookup($nameserver);
 				my $flag_icon = &GeoIP::get_flag_icon($ccode);
 
-				my $iaddr = inet_aton($nameserver);
-				my $rdns = gethostbyaddr($iaddr, AF_INET);
+				my $rdns;
+
+				# Only do the reverse lookup if the system is online.
+				if ( -f "/var/ipfire/red/active") {
+					my $iaddr = inet_aton($nameserver);
+					$rdns = gethostbyaddr($iaddr, AF_INET);
+				}
 
 				if (!$rdns) { $rdns = $Lang::tr{'lookup failed'}; }