From 258a14b9e2513c2236118681e5d65c6c592628ed Mon Sep 17 00:00:00 2001
From: Kan18 <24967425+Kan18@users.noreply.github.com>
Date: Fri, 19 Jul 2019 17:24:42 -0400
Subject: [PATCH] unpack > table.unpack

---
 sys/modules/opus/crypto/sha2.lua | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/modules/opus/crypto/sha2.lua b/sys/modules/opus/crypto/sha2.lua
index 2754ee7..4dcb98b 100644
--- a/sys/modules/opus/crypto/sha2.lua
+++ b/sys/modules/opus/crypto/sha2.lua
@@ -8,7 +8,7 @@ local band    = bit32 and bit32.band or bit.band
 local bnot    = bit32 and bit32.bnot or bit.bnot
 local bxor    = bit32 and bit32.bxor or bit.bxor
 local blshift = bit32 and bit32.lshift or bit.blshift
-local upack   = unpack
+local upack   = unpack or table.unpack
 
 local function rrotate(n, b)
 	local s = n/(2^b)
@@ -95,9 +95,9 @@ local function digestblock(w, C)
 end
 
 local mt = {
-	__tostring = function(a) return string.char(unpack(a)) end,
+	__tostring = function(a) return string.char(upack(a)) end,
 	__index = {
-		toHex = function(self) return ("%02x"):rep(#self):format(unpack(self)) end,
+		toHex = function(self) return ("%02x"):rep(#self):format(upack(self)) end,
 		isEqual = function(self, t)
 			if type(t) ~= "table" then return false end
 			if #self ~= #t then return false end