[mdns] Handle interface name error.

project-chip · Mar 8, 2022 · c09ed6a · c09ed6a
1 parent cc0659e
commit c09ed6a
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/src/lib/dnssd/minimal_mdns/Server.cpp b/src/lib/dnssd/minimal_mdns/Server.cpp
@@ -386,10 +386,13 @@ CHIP_ERROR ServerBase::BroadcastImpl(chip::System::PacketBufferHandle && data, u
             }
             else
             {
-                char ifaceName[chip::Inet::InterfaceId::kMaxIfNameLength];
-                info->mInterfaceId.GetInterfaceName(ifaceName, sizeof(ifaceName));
-                ChipLogDetail(Discovery, "Warning: Attempt to mDNS broadcast failed on %s:  %s", ifaceName, err.AsString());
                 lastError = err;
+#if CHIP_DETAIL_LOGGING    
+                char ifaceName[chip::Inet::InterfaceId::kMaxIfNameLength];
+                err = info->mInterfaceId.GetInterfaceName(ifaceName, sizeof(ifaceName));
+                if (err != CHIP_NO_ERROR) strcpy(ifaceName, "unknown");
+                ChipLogDetail(Discovery, "Warning: Attempt to mDNS broadcast failed on %s:  %s", ifaceName, lastError.AsString());
+#endif
             }
             return chip::Loop::Continue;
         }))