From 241205e5b064f1a546af90e184a0580996ef9b5d Mon Sep 17 00:00:00 2001
From: Bastian Kleineidam <calvin@debian.org>
Date: Tue, 26 Apr 2011 10:53:58 +0200
Subject: [PATCH] Only get network interfaces that are up.

---
 linkcheck/dns/resolver.py     | 4 ++--
 linkcheck/network/__init__.py | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/linkcheck/dns/resolver.py b/linkcheck/dns/resolver.py
index a26a0445..45726785 100644
--- a/linkcheck/dns/resolver.py
+++ b/linkcheck/dns/resolver.py
@@ -393,8 +393,8 @@ class Resolver(object):
             return []
         from linkcheck.network import IfConfig
         ifc = IfConfig()
-        return [ifc.getAddr(iface) for iface in ifc.getInterfaceList() \
-                if ifc.isUp(iface)]
+        return [ifc.getAddr(iface)
+                for iface in ifc.getInterfaceList(flags=IfConfig.IFF_UP)]
 
     def add_addrinfo (self, host, interface=False):
         try:
diff --git a/linkcheck/network/__init__.py b/linkcheck/network/__init__.py
index 935fdd89..c9fa4813 100644
--- a/linkcheck/network/__init__.py
+++ b/linkcheck/network/__init__.py
@@ -64,7 +64,7 @@ class IfConfig (object):
             return None
         return socket.inet_ntoa(result[20:24])
 
-    def getInterfaceList (self):
+    def getInterfaceList (self, flags=0):
         """Get all interface names in a list."""
         if sys.platform == 'darwin':
             command = ['ifconfig', '-l']
@@ -100,6 +100,8 @@ class IfConfig (object):
             name = struct.unpack("16s%ds" % (self.ifr_size-16), ifconf)[0]
             name = name.split('\0', 1)[0]
             if name:
+                if flags and not (self.getFlags(name) & flags):
+                    continue
                 iflist.append(name)
             i += self.ifr_size
         return iflist