Merge pull request #400 from cdburkard/patches/fixEmptyPing

Mininet crashes when running ping between two hosts with no interfaces
2014-10-13 18:11:19 -07:00
parent b7999978f9 778267aa75
commit 16a2a6dc55
1 changed files with 5 additions and 2 deletions
@@ -562,8 +562,11 @@ class Mininet( object ):
                    opts = ''
                    if timeout:
                        opts = '-W %s' % timeout
-                    result = node.cmd( 'ping -c1 %s %s' % (opts, dest.IP()) )
-                    sent, received = self._parsePing( result )
+                    if dest.intfs:
+                        result = node.cmd( 'ping -c1 %s %s' % (opts, dest.IP()) )
+                        sent, received = self._parsePing( result )
+                    else:
+                        sent, received = 0, 0
                    packets += sent
                    if received > sent:
                        error( '*** Error: received too many packets' )