From ec6021afa8d674e104276f34f5167fed53650897 Mon Sep 17 00:00:00 2001
From: Andy McFadden <fadden@fadden.com>
Date: Thu, 10 Oct 2002 00:46:58 +0000
Subject: [PATCH] Fixed a bug in CRC handling when using LZW/1.

---
 nufxlib-0/Lzw.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/nufxlib-0/Lzw.c b/nufxlib-0/Lzw.c
index 090d3aa..336ff16 100644
--- a/nufxlib-0/Lzw.c
+++ b/nufxlib-0/Lzw.c
@@ -648,14 +648,11 @@ Nu_CompressLZW(NuArchive* pArchive, NuStraw* pStraw, FILE* fp,
 
         /*
          * Compute the CRC.  For LZW/1 this is on the entire 4K block, for
-         * LZW/2 this is on just the "real" data.
+         * the "version 3" thread CRC this is on just the "real" data.
          */
-        if (isType2) {
-            *pThreadCrc = Nu_CalcCRC16(*pThreadCrc,
-                lzwState->inputBuf, blockSize);
-        } else {
-            *pThreadCrc = Nu_CalcCRC16(*pThreadCrc,
-                lzwState->inputBuf, kNuLZWBlockSize);
+        *pThreadCrc = Nu_CalcCRC16(*pThreadCrc,
+            lzwState->inputBuf, blockSize);
+        if (!isType2) {
             lzwState->chunkCrc = Nu_CalcCRC16(lzwState->chunkCrc,
                 lzwState->inputBuf, kNuLZWBlockSize);
         }