-if (sender_ident != NULL)
- s = string_append(s, sizeptr, ptrptr, 2, US" U=", sender_ident);
-if (received_protocol != NULL)
- s = string_append(s, sizeptr, ptrptr, 2, US" P=", received_protocol);
-return s;
+if (tcp_in_fastopen && !tcp_in_fastopen_logged)
+ {
+ g = string_catn(g, US" TFO", 4);
+ tcp_in_fastopen_logged = TRUE;
+ }
+if (sender_ident)
+ g = string_append(g, 2, US" U=", sender_ident);
+if (received_protocol)
+ g = string_append(g, 2, US" P=", received_protocol);
+return g;