Fix error message with invalid Geneve option length.

diff --git a/print-geneve.c b/print-geneve.c
index 7550ba06a1c3435243cd89970a71f9a328332be0..55a076e18c0ef9772e9012a5f1d6016cb4b9e3b7 100644 (file)
--- a/print-geneve.c
+++ b/print-geneve.c
@@ -183,7 +183,7 @@ geneve_print(netdissect_options *ndo, const u_char *bp, u_int len)
 
     if (len < opts_len) {
         ND_PRINT((ndo, " truncated-geneve - %u bytes missing",
-                  len - opts_len));
+                  opts_len - len));
         return;
     }