Fix stpncpy() check

Do not crash unless the overflow would happen.

1 files changed, 1 insertions, 1 deletions

diff --git a/include/string.h b/include/string.h
index a4072d6..82f9f38 100644
--- a/include/string.h
+++ b/include/string.h
@@ -88,7 +88,7 @@ _FORTIFY_FN(stpncpy) char *stpncpy(char *__d, const char *__s, size_t __n)
 {
         size_t __b = __builtin_object_size(__d, 0);
 
-        if (__n > __b)
+        if (__n > __b && strlen(__s) + 1 > __b)
                 __builtin_trap();
         return __orig_stpncpy(__d, __s, __n);
 }