[base64] Include terminating NUL within base64 character array

Reported-by: Bernhard M. Wiedemann <bwiedemann@suse.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/core/base64.c b/src/core/base64.c
index e452f7d41ad84cee2545259bbac1da0856e9c317..ec11be261b7e1b31b8032436e61ebd6b3a9fe552 100644 (file)
--- a/src/core/base64.c
+++ b/src/core/base64.c
@@ -36,7 +36,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  *
  */
 
-static const char base64[64] =
+static const char base64[ 64 + 1 /* NUL */ ] =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 /**