From b9ffe7e4ce0664a0ebe4e5088efbbaa16a75e1a0 Mon Sep 17 00:00:00 2001
From: Kamran Khan <kamranrkhan@google.com>
Date: Wed, 2 Dec 2020 23:02:07 -0800
Subject: [PATCH] Use constant instead of hardcoded integer

---
 src/ctap/apdu.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ctap/apdu.rs b/src/ctap/apdu.rs
index dd95caa..5783cd7 100644
--- a/src/ctap/apdu.rs
+++ b/src/ctap/apdu.rs
@@ -59,8 +59,8 @@ pub struct ApduHeader {
     p2: u8,
 }
 
-impl From<&[u8; 4]> for ApduHeader {
-    fn from(header: &[u8; 4]) -> Self {
+impl From<&[u8; APDU_HEADER_LEN]> for ApduHeader {
+    fn from(header: &[u8; APDU_HEADER_LEN]) -> Self {
         ApduHeader {
             cla: header[0],
             ins: header[1],