diff --git a/lib/libc/string/bcmp.c b/lib/libc/string/bcmp.c
--- a/lib/libc/string/bcmp.c
+++ b/lib/libc/string/bcmp.c
@@ -3,6 +3,10 @@
  *
  * Copyright (c) 1987, 1993
  *	The Regents of the University of California.  All rights reserved.
+ * Copyright (c) 2023 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by Robert Clausecker
+ * <fuz@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -51,7 +55,7 @@
 	p2 = (char *)b2;
 	do
 		if (*p1++ != *p2++)
-			break;
+			return (1);
 	while (--length);
-	return (length);
+	return (0);
 }