--- /dev/null
+++ Libc/Libc-391/stdio/FreeBSD/vswprintf.c.patch
@@ -0,0 +1,110 @@
+--- vswprintf.c.orig	2004-11-25 11:38:36.000000000 -0800
++++ vswprintf.c	2005-02-24 15:20:20.000000000 -0800
+@@ -33,6 +33,8 @@
+ #endif
+ __FBSDID("$FreeBSD: src/lib/libc/stdio/vswprintf.c,v 1.5 2004/04/07 09:55:05 tjr Exp $");
+ 
++#include "xlocale_private.h"
++
+ #include <errno.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+@@ -49,7 +51,66 @@
+ 	struct __sFILEX ext;
+ 	char *mbp;
+ 	int ret, sverrno;
++	size_t conv;
++	locale_t loc = __current_locale();
++
++	if (n == 0) {
++		errno = EINVAL;
++		return (-1);
++	}
++
++	f._file = -1;
++	f._flags = __SWR | __SSTR | __SALC;
++	f._bf._base = f._p = (unsigned char *)malloc(128);
++	if (f._bf._base == NULL) {
++		errno = ENOMEM;
++		return (-1);
++	}
++	f._bf._size = f._w = 127;		/* Leave room for the NUL */
++	f._extra = &ext;
++	INITEXTRA(&f);
++	ret = __vfwprintf(&f, loc, fmt, ap);
++	if (ret < 0) {
++		sverrno = errno;
++		free(f._bf._base);
++		errno = sverrno;
++		return (-1);
++	}
++	*f._p = '\0';
++	mbp = (char *)f._bf._base;
++	/*
++	 * XXX Undo the conversion from wide characters to multibyte that
++	 * fputwc() did in __vfwprintf().
++	 */
++	mbs = initial;
++	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
++		free(f._bf._base);
++		errno = EILSEQ;
++		return (-1);
++	}
++	free(f._bf._base);
++	if (conv >= n) {
++		s[n - 1] = L'\0';
++		errno = EOVERFLOW;
++		return (-1);
++	}
++
++	return (ret);
++}
++
++int
++vswprintf_l(wchar_t * __restrict s, size_t n, locale_t loc,
++    const wchar_t * __restrict fmt, __va_list ap)
++{
++	static const mbstate_t initial;
++	mbstate_t mbs;
++	FILE f;
++	struct __sFILEX ext;
++	char *mbp;
++	int ret, sverrno;
++	size_t conv;
+ 
++	NORMALIZE_LOCALE(loc);
+ 	if (n == 0) {
+ 		errno = EINVAL;
+ 		return (-1);
+@@ -65,7 +126,7 @@
+ 	f._bf._size = f._w = 127;		/* Leave room for the NUL */
+ 	f._extra = &ext;
+ 	INITEXTRA(&f);
+-	ret = __vfwprintf(&f, fmt, ap);
++	ret = __vfwprintf(&f, loc, fmt, ap);
+ 	if (ret < 0) {
+ 		sverrno = errno;
+ 		free(f._bf._base);
+@@ -73,19 +134,19 @@
+ 		return (-1);
+ 	}
+ 	*f._p = '\0';
+-	mbp = f._bf._base;
++	mbp = (char *)f._bf._base;
+ 	/*
+ 	 * XXX Undo the conversion from wide characters to multibyte that
+ 	 * fputwc() did in __vfwprintf().
+ 	 */
+ 	mbs = initial;
+-	if (mbsrtowcs(s, (const char **)&mbp, n, &mbs) == (size_t)-1) {
++	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
+ 		free(f._bf._base);
+ 		errno = EILSEQ;
+ 		return (-1);
+ 	}
+ 	free(f._bf._base);
+-	if (s[n - 1] != L'\0') {
++	if (conv >= n) {
+ 		s[n - 1] = L'\0';
+ 		errno = EOVERFLOW;
+ 		return (-1);