From 965bc4cd67f6acbd364da5aea75a75012f61c0ca Mon Sep 17 00:00:00 2001
From: Yang Xijing <814370731@qq.com>
Date: Tue, 20 May 2025 11:53:29 +0800
Subject: [PATCH] =?UTF-8?q?rt=5Fvsnprintf=E5=8F=82=E6=95=B0size=E6=9C=80?=
 =?UTF-8?q?=E5=A4=A7=E5=80=BCRSIZE=5FMAX?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/klibc/kstdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/klibc/kstdio.c b/src/klibc/kstdio.c
index df73eab49bd..92057aec757 100644
--- a/src/klibc/kstdio.c
+++ b/src/klibc/kstdio.c
@@ -51,7 +51,7 @@ RTM_EXPORT(rt_snprintf);
  */
 int rt_vsprintf(char *buf, const char *format, va_list arg_ptr)
 {
-    return rt_vsnprintf(buf, (rt_size_t) - 1, format, arg_ptr);
+    return rt_vsnprintf(buf, ((rt_size_t) - 1) >> 1, format, arg_ptr);
 }
 RTM_EXPORT(rt_vsprintf);