From 2a271217b5626f8b5bbd8081ce7ce357eb8b102c Mon Sep 17 00:00:00 2001
From: George Tokmaji <tokmajigeorge@gmail.com>
Date: Tue, 24 Sep 2024 13:22:08 +0200
Subject: [PATCH] C4Group: Fix C4Group::Open failing to open directories as
 st_size of a directory is 0

---
 src/C4Group.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/C4Group.cpp b/src/C4Group.cpp
index d72a5aa2..53ae78bc 100644
--- a/src/C4Group.cpp
+++ b/src/C4Group.cpp
@@ -80,9 +80,9 @@ int iC4GroupRewindFilePtrNoWarn = 0;
 
 namespace
 {
-	bool FileExistsNonEmpty(const char *filePath)
+	bool ItemExistsNonEmpty(const char *filePath)
 	{
-		return FileSize(filePath) > 0;
+		return DirectoryExists(filePath) || FileSize(filePath) > 0;
 	}
 }
 
@@ -267,7 +267,7 @@ bool C4Group_PackDirectoryTo(const char *szFilename, const char *szFilenameTo)
 	// Check file type
 	if (!DirectoryExists(szFilename)) return false;
 	// Target mustn't exist
-	if (FileExistsNonEmpty(szFilenameTo)) return false;
+	if (ItemExistsNonEmpty(szFilenameTo)) return false;
 	// Ignore
 	if (C4Group_TestIgnore(szFilename))
 		return true;
@@ -673,7 +673,7 @@ bool C4Group::Open(const char *szGroupName, bool fCreate)
 	SReplaceChar(szGroupNameN, '\\', DirectorySeparator);
 
 	// Real reference
-	if (FileExistsNonEmpty(szGroupNameN))
+	if (ItemExistsNonEmpty(szGroupNameN))
 	{
 		// Init
 		Init();