in_node_exporter_metrics: Plug undefined value for netif name

Signed-off-by: Hiroshi Hatake <[email protected]>
fluent · Oct 16, 2023 · a826eac · a826eac
1 parent 9a20f0b
commit a826eac
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/plugins/in_node_exporter_metrics/ne_netdev_darwin.c b/plugins/in_node_exporter_metrics/ne_netdev_darwin.c
@@ -162,6 +162,7 @@ static int netdev_update(struct flb_ne *ctx)
 
         if (!if_indextoname(i, ifname)) {
             flb_plg_debug(ctx->ins, "failed to if_index_toname for %d", i);
+            snprintf(ifname, IF_NAMESIZE, "(unknown %i)", i);
         }
 
         cmt_gauge_set(ctx->darwin_receive_packets, ts,