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-rw-r--r--src/stdio/vsscanf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/stdio/vsscanf.c b/src/stdio/vsscanf.c
index b803e262..183d9f2d 100644
--- a/src/stdio/vsscanf.c
+++ b/src/stdio/vsscanf.c
@@ -1,10 +1,12 @@
#include <stdio.h>
#include <stdarg.h>
+#include <string.h>
#include "_stdio.h"
int vsscanf(const char * restrict s, const char * restrict format, va_list arg)
{
SIGNAL_SAFE(0);
+ ASSERT_NOOVERLAP(s, strlen(s), format, strlen(format));
struct io_options opt = {
.fnname = __func__,