| commit | 431a9b65eacab7efabf2230ba97ff426c0e07f9d | [log] [tgz] |
|---|---|---|
| author | Mark Adler <madler@alumni.caltech.edu> | Thu Dec 07 06:38:10 2023 -0800 |
| committer | Mark Adler <madler@alumni.caltech.edu> | Sat Jan 13 22:29:58 2024 -0800 |
| tree | ff2ac0b4b9498dbff3a4ce3cab12a862d38451a7 | |
| parent | 643e17b7498d12ab8d15565662880579692f769d [diff] |
Add bounds checking to ERR_MSG() macro, used by zError().
diff --git a/zutil.h b/zutil.h index 902a304..0bd2dbc 100644 --- a/zutil.h +++ b/zutil.h
@@ -56,7 +56,7 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ /* (size given to avoid silly warnings with Visual C++) */ -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] +#define ERR_MSG(err) z_errmsg[(err) < -6 || (err) > 2 ? 9 : 2 - (err)] #define ERR_RETURN(strm,err) \ return (strm->msg = ERR_MSG(err), (err))