Fix stack overwriting when len=0.

1 files changed, 50 insertions, 0 deletions

diff --git a/test.py b/test.py
new file mode 100644
index 0000000..ccaba0e
--- /dev/null
+++ b/test.py
@@ -0,0 +1,50 @@
+import netifaces
+
+print('Found interfaces:')
+for iface in netifaces.interfaces():
+    print('  %s' % iface)
+
+print('')
+
+for iface in netifaces.interfaces():
+    allAddrs = netifaces.ifaddresses(iface)
+
+    print('Interface %s:' % iface)
+
+    for family in allAddrs:
+        addrs = allAddrs[family]
+        fam_name = netifaces.address_families[family]
+        print('  Address family: %s' % fam_name)
+        for addr in addrs:
+            print('    Address  : %s' % addr['addr'])
+            nmask = addr.get('netmask', None)
+            if nmask:
+                print('    Netmask  : %s' % nmask)
+            bcast = addr.get('broadcast', None)
+            if bcast:
+                print('    Broadcast: %s' % bcast)
+
+    print('')
+
+print('Found gateways:')
+gateway_info = netifaces.gateways()
+for family in gateway_info:
+    if family == 'default':
+        continue
+
+    fam_name = netifaces.address_families[family]
+    print('  Family: %s' % fam_name)
+    for gateway,interface,default in gateway_info[family]:
+        if default:
+            def_text = ', default'
+        else:
+            def_text = ''
+        print('    %s (via %s%s)' % (gateway, interface, def_text))
+    print('')
+    
+print('Default gateways:')
+default_gateways = gateway_info['default']
+for family in default_gateways:
+    fam_name = netifaces.address_families[family]
+    gateway, interface = default_gateways[family]
+    print('  %s: %s (via %s)' % (fam_name, gateway, interface))