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From af50c278c5b2c57a76771825a80ca3ff9d315acd Mon Sep 17 00:00:00 2001
From: "Steven M. Schweda" <sms@antinode.info>
Date: Sat, 15 Jun 2019 18:13:11 -0700
Subject: [PATCH] Handle the PKWare verification bit of internal attributes
---
process.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/process.c b/process.c
index 1e9a1e1..ed314e1 100644
--- a/process.c
+++ b/process.c
@@ -1729,6 +1729,13 @@ int process_cdir_file_hdr(__G) /* return PK-type error code */
else if (uO.L_flag > 1) /* let -LL force lower case for all names */
G.pInfo->lcflag = 1;
+ /* Handle the PKWare verification bit, bit 2 (0x0004) of internal
+ attributes. If this is set, then a verification checksum is in the
+ first 3 bytes of the external attributes. In this case all we can use
+ for setting file attributes is the last external attributes byte. */
+ if (G.crec.internal_file_attributes & 0x0004)
+ G.crec.external_file_attributes &= (ulg)0xff;
+
/* do Amigas (AMIGA_) also have volume labels? */
if (IS_VOLID(G.crec.external_file_attributes) &&
(G.pInfo->hostnum == FS_FAT_ || G.pInfo->hostnum == FS_HPFS_ ||
--
2.20.1
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