gentoo-overlay/net-dns/updatedd/files/set-socket-timeouts-for-ipserv.patch

Patch by Maciej S. Szmigiero to prevent ipserv from hanging when the
other end of the connection goes AWOL.

Gentoo-Bug: 602216

--- a/scripts/ipserv.pl.in	2005-03-06 22:21:36.000000000 +0100
+++ b/scripts/ipserv.pl.in	2017-01-14 19:39:25.583277538 +0100
@@ -20,6 +20,7 @@
 
 use strict;
 use IO::Socket;
+use IO::Socket::Timeout qw(IO::Socket::INET);
 
 my $ipv4_rex = qr/(?:\d{1,3}\.){3}\d{1,3}/imosx;
 
@@ -128,7 +129,8 @@
 	$socket = IO::Socket::INET->new(PeerAddr => $target->{url},
 					PeerPort => $target->{port},
 					Proto    => "tcp",
-					Type     => SOCK_STREAM)
+					Type     => SOCK_STREAM,
+					Timeout  => 2 * 60)
 	    or $retries--;
 
     } while(!defined($socket) && $retries != 0);
@@ -137,6 +139,10 @@
 	die "could not connect to $target->{url}: $!";
     }
 
+    IO::Socket::Timeout->enable_timeouts_on($socket);
+    $socket->read_timeout(2 * 60);
+    $socket->write_timeout(2 * 60);
+
     if(defined($target->{request})) {
 	print($socket $target->{request});
     }