From 19322519610f2984d2a89b37e1592be09ffafb8d Mon Sep 17 00:00:00 2001
From: pelikhan <jhalleux@microsoft.com>
Date: Thu, 20 Jan 2022 17:35:12 -0800
Subject: [PATCH] handle badly formed u64 data

---
 Jacdac/PacketEncoding.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Jacdac/PacketEncoding.cs b/Jacdac/PacketEncoding.cs
index 83c0ca8..46ec09a 100644
--- a/Jacdac/PacketEncoding.cs
+++ b/Jacdac/PacketEncoding.cs
@@ -295,6 +295,9 @@ public static object[] UnPack(string fmt, byte[] buf)
             var nf = Util.NumberFormatOfType(fmt);
             if (nf != NumberFormat.Unknown)
             {
+                // special case u32 as u64
+                if (nf == NumberFormat.UInt64LE && buf.Length == 4)
+                    return new object[] { (ulong)(uint)Util.GetNumber(buf, NumberFormat.UInt32LE, 0) };
                 var sz = Util.SizeOfNumberFormat(nf);
                 if (buf.Length == sz)
                     return new object[] { Util.GetNumber(buf, nf, 0) };