$OpenBSD: patch-preproc_c,v 1.1 2005/05/19 13:04:17 robert Exp $
--- preproc.c.orig	Mon Sep  8 00:46:26 2003
+++ preproc.c	Thu May 19 14:52:19 2005
@@ -4067,7 +4067,7 @@ error(int severity, const char *fmt, ...
 	return;
 
     va_start(arg, fmt);
-    vsprintf(buff, fmt, arg);
+    vsnprintf(buff, sizeof(buff), fmt, arg);
     va_end(arg);
 
     if (istk && istk->mstk && istk->mstk->name)