--- /n/sources/plan9/sys/src/cmd/auth/factotum/p9any.c	Sat Apr 27 16:52:16 2002
+++ /sys/src/cmd/auth/factotum/p9any.c	Tue Sep 22 00:00:00 2026
@@ -183,7 +183,7 @@
 			return toosmall(fss, i);
 		}
 		*n = i;
-		memmove(a, s_to_c(negstr), i+1);
+		memmove(a, s_to_c(negstr), i);
 		fss->phase = SNeedProto;
 		s_free(negstr);
 		return RpcOk;