From c14d18b9dfb961d5cd78bc42e89486c5a76f538f Mon Sep 17 00:00:00 2001
From: Morilli <35152647+Morilli@users.noreply.github.com>
Date: Tue, 28 Jan 2025 01:56:14 +0100
Subject: [PATCH] set local header data from directory header when flag is set

As described in section 4.4.7-4.4.9 of the zip specification when this flag is set the correct values will be in the data descriptor record and in the directory header.
---
 src/SharpCompress/Common/Zip/SeekableZipHeaderFactory.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/SharpCompress/Common/Zip/SeekableZipHeaderFactory.cs b/src/SharpCompress/Common/Zip/SeekableZipHeaderFactory.cs
index b99d0e2b..816b0b67 100644
--- a/src/SharpCompress/Common/Zip/SeekableZipHeaderFactory.cs
+++ b/src/SharpCompress/Common/Zip/SeekableZipHeaderFactory.cs
@@ -149,6 +149,12 @@ internal sealed class SeekableZipHeaderFactory : ZipHeaderFactory
         {
             throw new InvalidOperationException();
         }
+        if (FlagUtility.HasFlag(localEntryHeader.Flags, HeaderFlags.UsePostDataDescriptor))
+        {
+            localEntryHeader.Crc = directoryEntryHeader.Crc;
+            localEntryHeader.CompressedSize = directoryEntryHeader.CompressedSize;
+            localEntryHeader.UncompressedSize = directoryEntryHeader.UncompressedSize;
+        }
         return localEntryHeader;
     }
 }