Fix debugging of Eui48::lookup() problems (#2211)

arpReq.arp_ha.sa_data is not a null-terminated buffer.
Log meaningful data: the sa_family which caused the log.

diff --git a/src/eui/Eui48.cc b/src/eui/Eui48.cc
index ea2068bfead01e197dbdc1e0d145d5ff35268a0d..ef7a713d3e49595ff34ebce715d25a98a72b726b 100644 (file)
--- a/src/eui/Eui48.cc
+++ b/src/eui/Eui48.cc
@@ -207,7 +207,7 @@ Eui::Eui48::lookup(const Ip::Address &c)
         close(tmpSocket);
 
         if (arpReq.arp_ha.sa_family != ARPHRD_ETHER) {
-            debugs(28, 4, "id=" << (void*)this << " ... not an Ethernet interface: " << arpReq.arp_ha.sa_data);
+            debugs(28, 4, "id=" << (void*)this << " ... not an Ethernet interface, sa_family=" << arpReq.arp_ha.sa_family);
             clear();
             return false;
         }