vfprintf: Avoid creating a VLA which complicates stack management

2016-09-02 12:56:50 +02:00 · 2016-09-02 12:56:50 +02:00 · 326e288b1e
commit 326e288b1e
parent 2bad840e9d
2 changed files with 6 additions and 1 deletions
--- a/5
+++ b/5
@ -1,3 +1,8 @@
+2016-09-02  Florian Weimer  <fweimer@redhat.com>
+
+	* stdio-common/vfprintf.c (process_string_arg): Use MB_LEN_MAX
+	instead of MB_CUR_MAX to avoid variable-length array.
+
 2016-09-01  Paul E. Murphy  <murphyp@linux.vnet.ibm.com>

 	* math/Makefile (libm-calls): Remove k_rem_pio2F.
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@ -1082,7 +1082,7 @@ static const uint8_t jump_table[] =
    LABEL (form_wcharacter):						      \
      {									      \
 	/* Wide character.  */						      \
-	char buf[MB_CUR_MAX];						      \
+	char buf[MB_LEN_MAX];						      \
 	mbstate_t mbstate;						      \
 	size_t len;							      \
 									      \