1 files changed, 1 insertions, 3 deletions

diff --git a/include/string.h b/include/string.h
index 0a9cd07..be13cb4 100644
--- a/include/string.h
+++ b/include/string.h
@@ -191,9 +191,7 @@ _FORTIFY_FN(strncat) char *strncat(char * _FORTIFY_POS0 __d, const char *__s,
         size_t __b = __bos(__d, 0);
 
         if (__n > __b) {
-                size_t __sl = strlen(__s);
-                if (__sl > __n)
-                        __sl = __n;
+                size_t __sl = strnlen(__s, __n);
                 size_t __dl = strlen(__d);
                 if (__sl + __dl + 1 > __b)
                         __builtin_trap();