1From 94b2d0b50a3a231ef91319e8e633b7ea62f0e2db Mon Sep 17 00:00:00 2001
 2From: Roy Tam <roytam@gmail.com>
 3Date: Mon, 28 Apr 2025 12:57:34 -0700
 4Subject: [PATCH] Handle Microsoft ZIP64 files by ignoring invalid "Total
 5 number of disks" field
 6
 7---
 8 process.c | 2 +-
 9 1 file changed, 1 insertion(+), 1 deletion(-)
10
11diff --git a/process.c b/process.c
12index a7d5b87..b385f1e 100644
13--- a/process.c
14+++ b/process.c
15@@ -1281,7 +1281,7 @@ static int find_ecrec64(__G__ searchlen)         /* return PK-class error */
16     fprintf(stdout,"\nnumber of disks (ECR) %u, (ECLOC64) %lu\n",
17             G.ecrec.number_this_disk, ecloc64_total_disks); fflush(stdout);
18 #endif
19-    if ((G.ecrec.number_this_disk != 0xFFFF) &&
20+    if ((G.ecrec.number_this_disk != 0xFFFF) && ecloc64_total_disks &&
21         (G.ecrec.number_this_disk != ecloc64_total_disks - 1)) {
22       /* Note: For some unknown reason, the developers at PKWARE decided to
23          store the "zip64 total disks" value as a counter starting from 1,
24-- 
252.45.2
26