From 4b43b375b7abae22070cd86bfc26a8222233150e Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Wed, 31 Jan 2024 13:24:56 -0500
Subject: check for overlapping pointers

---
 src/stdio/sscanf_s.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/stdio/sscanf_s.c')

diff --git a/src/stdio/sscanf_s.c b/src/stdio/sscanf_s.c
index 20249496..08bbd6e5 100644
--- a/src/stdio/sscanf_s.c
+++ b/src/stdio/sscanf_s.c
@@ -1,11 +1,13 @@
 #include <stdio.h>
 #include <stdarg.h>
+#include <string.h>
 #include "_stdio.h"
 
 /** read formatted input from a string **/
 int sscanf_s(const char * restrict s, const char * restrict format, ...)
 {
 	SIGNAL_SAFE(0);
+	ASSERT_NOOVERLAP(s, strlen(s), format, strlen(format));
 
 	va_list ap;
 	va_start(ap, format);
-- 
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